CN120504380B - Solid-liquid separation device for cadmium-containing wastewater treatment - Google Patents

Solid-liquid separation device for cadmium-containing wastewater treatment

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Publication number
CN120504380B
CN120504380B CN202511006391.2A CN202511006391A CN120504380B CN 120504380 B CN120504380 B CN 120504380B CN 202511006391 A CN202511006391 A CN 202511006391A CN 120504380 B CN120504380 B CN 120504380B
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China
Prior art keywords
frame
hollow
plate
guide
electric push
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Application number
CN202511006391.2A
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Chinese (zh)
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CN120504380A (en
Inventor
周耀森
吴速英
张大超
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Jiangxi University of Science and Technology
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Jiangxi University of Science and Technology
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Priority to CN202511006391.2A priority Critical patent/CN120504380B/en
Publication of CN120504380A publication Critical patent/CN120504380A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281Installations for water purification using chemical agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/122Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/20Heavy metals or heavy metal compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/14Maintenance of water treatment installations
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/16Regeneration of sorbents, filters
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treatment Of Sludge (AREA)

Abstract

本发明涉及固液分离的技术领域,尤其涉及一种含镉废水处理用固液分离装置。包括有:第一移动架;螺旋送料机,安装于第一移动架的顶部;固定架,对称设置于第一移动架上;空心框,连接于固定架上;排水框,连接于空心框的侧面并保持连通;导料框,连接于空心框的顶部并保持连通;弧形滤板,连接于导料框上;导料斜板,对称连接于导料框的两侧。本发明通过泥浆泵、导料框和弧形滤板的配合,可在不排空沉淀池污水的情况下,直接抽取底部淤泥并输送至导料框内,利用压板的往复挤压作用,使淤泥中的水分通过弧形滤板渗出,实现固液分离,而挤压后的干泥通过导料斜板排出,确保污水处理过程连续稳定运行,提高整体处理效率。

The present invention relates to the technical field of solid-liquid separation, and in particular to a solid-liquid separation device for treating cadmium-containing wastewater. It comprises: a first movable frame; a screw feeder, mounted on the top of the first movable frame; a fixed frame, symmetrically arranged on the first movable frame; a hollow frame, connected to the fixed frame; a drainage frame, connected to the side of the hollow frame and kept connected; a material guide frame, connected to the top of the hollow frame and kept connected; an arc-shaped filter plate, connected to the material guide frame; and a material guide inclined plate, symmetrically connected to both sides of the material guide frame. The present invention can directly extract the bottom sludge and transport it to the material guide frame without emptying the sewage in the sedimentation tank through the cooperation of a mud pump, a material guide frame and an arc-shaped filter plate, and utilize the reciprocating squeezing action of the pressure plate to make the water in the sludge seep out through the arc-shaped filter plate to achieve solid-liquid separation, and the squeezed dry mud is discharged through the material guide inclined plate, ensuring the continuous and stable operation of the sewage treatment process and improving the overall treatment efficiency.

Description

Solid-liquid separation device for cadmium-containing wastewater treatment
Technical Field
The invention relates to the technical field of solid-liquid separation, in particular to a solid-liquid separation device for cadmium-containing wastewater treatment.
Background
In the treatment process of the cadmium-containing wastewater, a common treatment method is a chemical precipitation method, and a precipitant is added into the wastewater to form insoluble precipitate of cadmium ions, so that the cadmium ions are primarily removed from the wastewater. However, in practical application, a large amount of heavy metal sediments are deposited at the bottom of the sedimentation tank to form sludge, and if the sludge is not removed in time, the effective volume and the treatment efficiency of the sedimentation tank are affected.
The existing sludge cleaning mode mainly depends on two means, namely, a portal frame is arranged above a sedimentation tank and is matched with a moving structure and a lifting structure to drive a sludge pump to move and lift, so that the sludge pump pumps the bottom sludge, and a moving trolley is adopted to directly drive the sludge pump to move at the bottom of the tank and pump the sludge. The two methods have the advantages, but have the obvious defects that firstly, the two methods need to empty the sewage in the sedimentation tank before operation, otherwise, a slurry pump can carry out a large amount of sewage which is not completely sedimented while pumping the sludge, so that the sewage treatment flow is interrupted, and the subsequent treatment effect is influenced. Secondly, frequent drainage dredging not only can increase operation complexity and operation cost, but also can lead to the whole sewage treatment process not to run continuously and stably, and the overall treatment efficiency of the system is reduced.
Disclosure of Invention
In view of the above, the invention provides a solid-liquid separation device for cadmium-containing wastewater treatment, which can overcome the defects that the prior sludge cleaning mode generally needs to empty the wastewater in a sedimentation tank, which can cause the whole wastewater treatment process to be unable to run continuously and stably and reduce the overall treatment efficiency.
The solid-liquid separation device for cadmium-containing wastewater treatment comprises a first movable frame, a spiral feeder, a fixed frame, a hollow frame, a drainage frame, a guide frame, an arc-shaped filter plate, a guide inclined plate, first electric push rods, connecting plates, a transverse rod, a pressing plate and a material pumping assembly, wherein the spiral feeder is arranged at the top of the first movable frame, the fixed frame is symmetrically arranged on the first movable frame, the hollow frame is connected to the fixed frame, the drainage frame is connected to the side face of the hollow frame and keeps communicated with the hollow frame, the guide frame is connected to the top of the hollow frame and keeps communicated with the hollow frame, the arc-shaped filter plate is connected to the guide frame, the guide inclined plate is symmetrically connected to two sides of the guide frame, the first electric push rods are respectively arranged on two sides of the hollow frame, the connecting plates are connected to telescopic rods of the first electric push rods, the transverse rod is connected between the connecting plates on the two sides, the transverse rod penetrates through the inside of the guide frame, the pressing plate is connected to the transverse rod, the pressing plate is in contact fit with the inner wall of the guide frame and the top of the arc-shaped filter plate, the material pumping assembly is arranged on the first movable frame and is used for pumping the sludge in a sedimentation tank.
The material pumping assembly comprises a second movable frame, a second electric push rod, a sleeve, a slurry pump, a feeding pipe and a guiding frame, wherein the second movable frame is slidably arranged on the first movable frame, the fixing frame is fixedly connected with the second movable frame, the second electric push rod is arranged at the bottom of the second movable frame, the sleeve is sleeved outside a cylinder body of the second electric push rod, a telescopic rod of the second electric push rod is connected with the sleeve, the slurry pump is arranged at the bottom of the sleeve, the feeding pipe is connected to a discharge hole of the slurry pump and is communicated, and the upper end of the feeding pipe is located right above the guiding frame.
The plugging assembly comprises a controller, third electric push rods, a mounting frame, a pressure sensor, a baffle plate and a plug rod, wherein the controller is arranged on the side face of one fixing frame, the third electric push rods are symmetrically arranged on two sides of the material guiding frame, the mounting frame is connected to a telescopic rod of the third electric push rods, the pressure sensor is arranged on the inner side of the mounting frame, the baffle plate is connected to the side face of the pressure sensor, and the baffle plate is in contact with the inner wall of the material guiding frame.
The water supply device comprises a hollow frame, a connecting spring, a hollow plate, a spray head, a water supply mechanism and a water supply mechanism, wherein the hollow frame is arranged in the hollow frame, the hollow plate is connected with the water supply mechanism, the water supply mechanism is arranged in the hollow frame, and the water supply mechanism is used for conveying water in the hollow frame to the spray head for spraying.
The water supply mechanism comprises a water pump, a shunt pipe, an electric control valve, a control switch and a hollow plate, wherein the water pump is arranged at the inner bottom of the hollow frame, the shunt pipe is connected to a water outlet of the water pump and is communicated, the end part of the shunt pipe is connected with the hollow plate and is communicated, the electric control valve is arranged on the shunt pipe, the control switch is symmetrically arranged on the inner wall of the hollow frame, and the hollow plate is in contact fit with the control switch.
The drainage device is characterized by further comprising a guide rod which is symmetrically and slidingly connected to the drainage frame, a blocking plate which is connected to the end part of the guide rod and is in contact with the inner wall of the drainage frame, and a return spring which is wound on the outer side of the guide rod, wherein two ends of the return spring are respectively connected with the drainage frame and the blocking plate.
Preferably, the automatic feeding device also comprises a square plate connected to the feeding pipe and an elastic film, wherein two ends of the elastic film are respectively connected with the bottom of the square plate and the top of the material guiding frame.
Preferably, the scraper is connected with the outer wall of the sleeve at intervals in the circumferential direction.
The invention has the beneficial effects that 1, the mud pump, the material guiding frame and the arc-shaped filter plate are matched, so that the bottom mud can be directly pumped and conveyed into the material guiding frame under the condition of not emptying sewage in the sedimentation tank, the water in the mud is oozed out through the arc-shaped filter plate by utilizing the reciprocating extrusion action of the pressing plate, the solid-liquid separation is realized, the extruded dry mud is discharged through the material guiding inclined plate, the continuous and stable operation of the sewage treatment process is ensured, and the overall treatment efficiency is improved.
2. According to the invention, the flushing assembly is arranged, when the pressing plate moves left and right, the control switch is triggered through the connecting plate, so that the spray head can automatically spray water to perform back flushing on the arc-shaped filter plate, the filter holes are prevented from being blocked by sludge, the lasting and stable filtering effect is ensured, and the manual maintenance frequency is reduced.
3. The invention utilizes the cooperation of the drainage frame, the blocking plate and the reset spring to automatically drain the temporarily stored water in the hollow frame when the water reaches a certain pressure, and simultaneously washes a small amount of sediment which is possibly deposited back to the sedimentation tank, thereby avoiding secondary deposition, ensuring long-term stable operation of the system and reducing the manual cleaning requirement.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
FIG. 2 is a schematic view of the installation of the hollow frame, drainage frame, guide frame, connecting plate and cross bar of the present invention.
Fig. 3 is a schematic diagram showing a separation structure of the hollow frame and the material guiding frame.
FIG. 4 is a schematic view of the installation of the pressure plate and control switch of the present invention.
FIG. 5 is a schematic view of the installation of the pumping assembly of the present invention.
FIG. 6 is a schematic view of the installation of the plugging assembly of the present invention.
FIG. 7 is a schematic diagram of the mating structure of the cross bar of the present invention with the pressure sensor and baffle.
Fig. 8 is a schematic installation view of the flush assembly of the present invention.
Fig. 9 is a schematic view of the installation of the guide rod, closure plate and return spring of the present invention.
The reference numerals show that the device comprises a first moving frame, a 2-spiral feeder, a 3-fixed frame, a 4-hollow frame, a 5-drainage frame, a 6-guide frame, a 7-arc filter plate, an 8-guide inclined plate, a 9-first electric push rod, a 10-connecting plate, a 11-cross rod, a 12-pressing plate, a 13-second moving frame, a 14-second electric push rod, a 15-sleeve, a 16-slurry pump, a 17-feeding pipe, a 18-controller, a 19-third electric push rod, a 20-mounting frame, a 21-pressure sensor, a 22-baffle plate, a 23-sliding rod, a 24-fixed plate, a 25-connecting spring, a 26-hollow plate, a 27-spray head, a 28-water pump, a 29-shunt pipe, a 30-electric control valve, a 31-control switch, a 32-guide rod, a 33-blocking plate, a 34-reset spring, a 35-square plate, a 36-elastic membrane and a 37-scraping plate.
Detailed Description
Examples: the utility model provides a cadmium-containing solid-liquid separation device for wastewater treatment, as shown in fig. 1-7, including first movable frame 1, screw feeder 2, mount 3, hollow frame 4, drainage frame 5, guide frame 6, arc filter plate 7, guide swash plate 8, first electric putter 9, connecting plate 10, horizontal pole 11, clamp plate 12, take out material subassembly and putty subassembly, two electric wheels are all installed to the left and right sides of first movable frame 1 lower part, the spout has all been opened to the top both sides of sedimentation tank, when the device was installed at the top of sedimentation tank, the electric wheel can just block into the spout, so that the electric wheel can remove along the spout, so that drive the device removes at the top of sedimentation tank, screw feeder 2 is installed at the top of first movable frame 1, the middle part of the front and back both sides of first movable frame 1 all is equipped with mount 3, be connected with hollow frame 4 between the middle part of two mounts 3, the top of the hollow frame 4 is of an open type design, the middle part of the front side of the hollow frame 4 is connected with a drain frame 5 and is communicated, the height of the inner bottom of the hollow frame 4 is equal to the height of the inner bottom of the drain frame 5, a guide frame 6 is connected between the upper parts of the two fixing frames 3, the bottom of the guide frame 6 is connected with the top of the hollow frame 4 and is communicated, the bottom of the guide frame 6 is provided with an arc hole, the top and the left side and the right side of the guide frame 6 are of an open type design, the arc hole at the bottom of the guide frame 6 is connected with an arc filter plate 7, the left side and the right side of the guide frame 6 are connected with guide inclined plates 8, the front side and the rear side of the hollow frame 4 are respectively provided with a first electric push rod 9, the telescopic rods of the two first electric push rods 9 are respectively connected with a connecting plate 10, the connecting plates 10 are obliquely arranged, a cross rod 11 is connected between the upper parts of the two connecting plates 10, the horizontal pole 11 runs through the left and right sides of guide frame 6, and the middle part of horizontal pole 11 is connected with clamp plate 12, and clamp plate 12 and the inner wall of guide frame 6 and the top contact cooperation of arc filter plate 7 are equipped with the material subassembly that takes out that is used for extracting the inside silt of sedimentation tank on the first removal frame 1, are equipped with the putty subassembly that is used for plugging up its left and right sides on the guide frame 6.
As shown in fig. 5, the material drawing assembly comprises a second movable frame 13, a second electric push rod 14, a sleeve 15, a slurry pump 16 and a material feeding pipe 17, wherein the second movable frame 13 is arranged in the middle of the first movable frame 1, four electric wheels are arranged at the upper part of the second movable frame 13 and are all in contact with the top of the first movable frame 1, so that the electric wheels can drive the second movable frame 13 to move left and right along the first movable frame 1, the fixing frame 3 is fixedly connected with the second movable frame 13, the second electric push rod 14 is arranged at the bottom of the second movable frame 13, the sleeve 15 is sleeved outside a cylinder body of the second electric push rod 14, the telescopic rod of the second electric push rod 14 is connected with the inner wall of the sleeve 15, the slurry pump 16 is arranged at the bottom of the sleeve 15, the material feeding pipe 17 is connected at the material outlet of the slurry pump 16 and is kept in communication, and the upper end of the material feeding pipe 17 is positioned right above the material guiding frame 6.
As shown in fig. 6 and 7, the material blocking component comprises a controller 18, a third electric push rod 19, a mounting frame 20, pressure sensors 21 and baffle plates 22, wherein the controller 18 is mounted on the upper portion of the front side of a fixing frame 3 on the front side, the third electric push rods 19 are symmetrically mounted on the front side and the rear side of a material guiding frame 6, the mounting frame 20 is connected between telescopic rods of the two third electric push rods 19 on the left side, the mounting frame 20 is also connected between telescopic rods of the two third electric push rods 19 on the right side, the two mounting frames 20 are respectively positioned on the left side and the right side of the material guiding frame 6, the pressure sensors 21 are mounted on the inner sides of the two mounting frames 20, one sides, close to the material guiding frame 6, of the two pressure sensors 21 are respectively connected with the baffle plates 22, and the two baffle plates 22 are in contact with the inner walls of the material guiding frame 6 and block the left side and the right side of the material guiding frame 6 respectively.
When the device is needed to be used, the device can be directly arranged at the top of a sedimentation tank, so that an electric wheel on a first movable frame 1 is clamped into a chute at the top of the sedimentation tank, when the sludge in the sedimentation tank needs to be cleaned, a second electric push rod 14 is controlled by a controller 18 to drive a sleeve 15 to move downwards, the sleeve 15 can drive a slurry pump 16 to move downwards to the inner bottom of the sedimentation tank, then the slurry pump 16 is controlled by the controller 18 to start working, the slurry pump 16 can pump the sludge at the inner bottom of the sedimentation tank, and the conveying pipe 17 is used for conveying the sludge upwards into a material guiding frame 6 to drop the sludge at the top of an arc filter plate 7, at the moment, a first electric push rod 9 can be controlled by the controller 18 to drive a connecting plate 10 to intermittently reciprocate left and right, the connecting plate 10 can drive a cross rod 11 and a pressing plate 12 to intermittently reciprocate left and right, when the pressing plate 12 moves leftwards, the sludge at the top of the arc filter plate 7 can be pushed to move leftwards, and when the pressing plate 12 moves leftwards to contact with the inner wall at the left side of the inner side of the material guiding frame 6, the pressing plate 12 can be pushed leftwards and moved leftwards, a material guiding frame 6, The arc filter plate 7 and the left baffle 22 can enclose a cylindrical space, the sludge is positioned in the cylindrical space, along with the fact that the pressing plate 12 continues to move leftwards, the pressing plate 12 extrudes the sludge to enable moisture to exude, the moisture can drop into the hollow frame 4 downwards through the arc filter plate 7 and is discharged into the sedimentation tank downwards through the drainage frame 5, the sludge remains in the cylindrical space, meanwhile, the left pressure sensor 21 can monitor the pressure born by the sludge in real time, when the pressure detected by the left pressure sensor 21 is larger than a preset value, the water in the sludge is basically extruded out, at the moment, the left pressure sensor 21 can send out a signal, the controller 18 can control the left third electric push rod 19 to drive the left installation frame 20 to move leftwards for a specified distance after receiving the signal, the left installation frame 20 drives the left pressure sensor 21 and the left baffle 22 to move leftwards for a specified distance, the left baffle 22 is separated from the left side of the guide frame 6, the left side can push the sludge leftwards, the left sludge can be pushed out leftwards along the left guide frame 21 to drop the guide the sludge into the spiral conveyor 2, and the left guide frame 2 can be conveyed leftwards; in the process of extruding sludge by moving the pressing plate 12 leftwards, the conveying pipe 17 continuously conveys the sludge to the top of the arc-shaped filter plate 7, and the sludge at the top of the arc-shaped filter plate 7 is positioned on the right side of the pressing plate 12, so when the pressing plate 12 moves rightwards, the pressing plate 12 can push the sludge at the top of the arc-shaped filter plate 7 rightwards, and can extrude the sludge under the cooperation of the right baffle 22 so as to finish the solid-liquid separation work of the sludge, and in the process of moving the pressing plate 12 rightwards, the controller 18 controls the left third electric push rod 19 to drive the left mounting frame 20 to move right for a specified distance for resetting, the left mounting frame 20 drives the left pressure sensor 21 and the left baffle 22 to move right for a specified distance for resetting, the left baffle 22 is used for re-blocking the left side of the material guiding frame 6, so that the reciprocating motion can be realized, the sludge in the sewage can be singly discharged when the sewage is subjected to chemical precipitation treatment, and the sludge pump 16 can drive the sludge pump 16 to move back and forth and left and right in the sedimentation tank through the movement of the first moving frame 1 and the second moving frame 13 when the sludge in the sedimentation tank is extracted, so that the sludge pump 16 can comprehensively extract the sludge in the sedimentation tank, and the sludge treatment mode does not need to interrupt the chemical precipitation treatment of the sewage and can not discharge a large amount of unfinished sewage, thereby ensuring the treatment effect and treatment efficiency of the sewage.
As shown in FIG. 8, the water supply device further comprises a flushing component, the flushing component comprises slide bars 23, a fixed plate 24, a connecting spring 25, hollow plates 26, spray heads 27 and a water supply mechanism, wherein the upper parts of the left side and the right side of the hollow frame 4 are respectively and slidably connected with the two slide bars 23, the fixed plate 24 is connected between the ends of the two slide bars 23, the fixed plate 24 is in contact fit with the connecting plate 10, the connecting spring 25 is wound on the outer sides of the slide bars 23, the two ends of the connecting spring 25 are respectively connected with the fixed plate 24 and the hollow frame 4, the hollow plates 26 are connected between the other ends of the two slide bars 23, the hollow plates 26 are arc-shaped, the hollow plates 26 are positioned in the hollow frame 4, the hollow plates 26 are positioned below the arc-shaped filter plates 7, a plurality of spray heads 27 are respectively and slidably arranged at the top parts of the hollow plates 26, the water supply mechanism for conveying water to the spray heads 27 is arranged in the hollow frame 4, the water supply mechanism comprises a water pump 28, a shunt tube 29, an electric control valve 30 and a control switch 31, a water pump 28 is arranged in the middle of the inner bottom part of the hollow frame 4, a water outlet of the water pump 28 is connected with the shunt tube 29 and keeps in communication, the two ends of the hollow frame 29 are respectively, and are respectively connected with the control switches 29, and are respectively connected with the left and right side control switches 29, and the control switches 31, and the left side and the control switches 29 are respectively connected with the control switches 31, and the upper ends of the control switches 29, and the control switches are respectively.
In the initial state, the hollow plates 26 on the left and right sides are respectively contacted with the control switches 31 on the two sides, the electric control valve 30 is in a closed state, and the water pump 28 and the hollow plates 26 are in a non-communication state; when the connecting plate 10 moves leftwards, the pressing plate 12 can be driven to move leftwards to squeeze sludge, meanwhile, the connecting plate 10 on the right side can extrude the fixed plate 24 on the right side to move leftwards, the sliding rod 23 on the right side, the hollow plate 26 on the right side and the spray head 27 on the right side are driven to move leftwards, the connecting spring 25 on the right side is compressed, the hollow plate 26 on the right side can be separated from the control switch 31 on the right side at the moment, the control switch 31 on the right side sends out a signal, the controller 18 can control the electric control valve 30 to be opened after receiving the signal, the water pump 28 can be communicated with the hollow plate 26 on the right side through the shunt pipe 29 and control the water pump 28 to start working, the water pump 28 can pump water in the hollow frame 4 and convey the water to the spray head 27 on the right side through the shunt pipe 29 and the hollow plate 26 on the right side, the spray head 27 on the right side can spray water upwards to carry out back flushing on the right half part of the bottom of the arc-shaped filter plate 7 in the process of moving leftwards, when the connecting plate 10 moves rightwards, the connecting plate 10 on the right side is separated from the fixed plate 24 on the right side, at the moment, the connecting spring 25 on the right side can restore to the original state, the connecting plate 10 on the right side, the slide bar 23 on the right side, the hollow plate 26 on the right side and the spray head 27 on the right side are driven to move rightwards to restore, at the moment, the spray head 27 on the right side is still in an upward water spraying state so as to carry out secondary flushing on the right half part of the bottom of the arc-shaped filter plate 7, when the hollow plate 26 on the right side is contacted with the control switch 31 on the right side, the control switch 31 on the right side sends out a signal, the controller 18 receives the signal and then controls the electric control valve 30 to be closed, so that the water pump 28 is not communicated with the hollow plate 26 on the right side, and the water pump 28 is controlled to stop working, so that the spray head 27 on the right side does not spray water any more, the connecting plate 10 continues to move to the right, and similarly, the spray head 27 on the left side can spray water upwards to flush the left half part of the bottom of the arc filter plate 7, and the spray head is reciprocated in this way, so that the filter holes of the arc filter plate 7 can be prevented from being blocked by sludge, and the filtering effect and the filtering efficiency of the arc filter plate 7 are ensured.
As shown in fig. 9, the drainage device further comprises a guide rod 32, a blocking plate 33 and a return spring 34, wherein the front side of the upper part of the drainage frame 5 is slidingly connected with the two guide rods 32, the blocking plate 33 is connected between the rear ends of the two guide rods 32, the blocking plate 33 is contacted with the inner wall of the drainage frame 5, the outside of the two guide rods 32 is wound with the return spring 34, and the two ends of the return spring 34 are respectively connected with the drainage frame 5 and the blocking plate 33.
When the water squeezed out of the interior of the sludge drops down to the interior of the hollow frame 4 through the arc-shaped filter plate 7, the water inside the hollow frame 4 is temporarily prevented from being discharged back into the sedimentation tank by the blocking plate 33, the water pressure inside the hollow frame 4 is gradually increased along with the fact that the water inside the hollow frame 4 is more and more, when the thrust generated by the water pressure inside the hollow frame 4 is greater than the elastic force of the return spring 34, the water inside the hollow frame 4 can squeeze the blocking plate 33 and the guide rod 32 to move forward, the return spring 34 is compressed, the blocking plate 33 is prevented from blocking the interior of the hollow frame 5, at the moment, the water inside the hollow frame 4 can be discharged back into the sedimentation tank through the hollow frame 5, when the thrust generated by the water pressure inside the hollow frame 4 is smaller than the elastic force of the return spring 34, the return spring 34 can restore to the original state, the blocking plate 33 and the guide rod 32 to move back to reset, so that the interior of the hollow frame 4 is always provided with a certain amount of water, the water can be pumped 28, the sewage can be guaranteed to be pumped, the interior of the hollow frame 4 can be automatically flushed down, and the interior of the hollow frame 4 can be automatically cleaned up, and the interior of the hollow frame 4 can be completely discharged back into the sedimentation tank through the hollow frame 4, and the hollow frame 4 can be automatically, and the interior of the hollow frame 4 can be completely flushed down, and the interior of the hollow frame 4 can be completely is completely, and the interior can be completely flushed down, and the interior of the hollow frame 5 can be completely, and the interior can be completely is completely, and the interior can and the interior.
As shown in figure 1, the device further comprises a square plate 35 and an elastic membrane 36, wherein the square plate 35 is connected to the upper part of the feeding pipe 17, the elastic membrane 36 is connected between the bottom of the square plate 35 and the top of the material guiding frame 6, when the second electric push rod 14 drives the slurry pump 16 to move up and down, the slurry pump 16 drives the feeding pipe 17 and the square plate 35 to synchronously move up and down, the elastic membrane 36 can adaptively stretch and retract, so that the elastic membrane 36 can always block a gap between the square plate 35 and the material guiding frame 6, the device is prevented from being polluted by splash, the device further comprises a scraping plate 37, four scraping plates 37 are circumferentially connected to the outer wall of the sleeve 15 at intervals, when the device is used for treating sludge in a sedimentation tank, the sleeve 15 can be controlled to move close to the inner wall of the sedimentation tank, the scraping plates 37 are contacted with the inner wall of the sedimentation tank, then the sleeve 15 is controlled to move a circle along the inner wall of the sedimentation tank, the scraping plates 37 can scrape the sludge adhered to the inner wall of the sedimentation tank, and the sludge does not need to be cleaned manually.

Claims (4)

1. A solid-liquid separation device for cadmium-containing wastewater treatment comprises a first movable frame (1), a spiral feeder (2) arranged at the top of the first movable frame (1), a fixed frame (3) symmetrically arranged on the first movable frame (1), a hollow frame (4) connected to the fixed frame (3), a drainage frame (5) connected to the side surface of the hollow frame (4) and communicated with the side surface of the hollow frame (4), a guide frame (6) connected to the top of the hollow frame (4) and communicated with the top, an arc-shaped filter plate (7) connected to the guide frame (6), guide inclined plates (8) symmetrically connected to the two sides of the guide frame (6), first electric push rods (9) respectively arranged at the two sides of the hollow frame (4), connecting plates (10) connected to telescopic rods of the first electric push rods (9), cross rods (11) connected between the connecting plates (10) at the two sides, the cross rods (11) penetrating through the inside of the guide frame (6), a cross rod (12) connected to the cross rods (11) and connected to the guide frame (6), a suction plate (6) and the guide frame (6) and the guide plate (6) are in contact with the top of the guide frame (6), a material blocking assembly arranged at the top of the guide frame (6) and a material blocking assembly arranged in a material blocking assembly, the flushing device is used for blocking two sides of a material guiding frame (6), the material pumping assembly comprises a second movable frame (13), a sleeve (15), a slurry pump (16), a material feeding pipe (17), a controller (18), a mounting frame (20), a pressure sensor (21), a flushing assembly (24) and a flushing assembly (24), wherein the second movable frame (13) is slidably arranged on the first movable frame (1), the fixing frame (3) is fixedly connected with the second movable frame (13), the second electric push rod (14) is arranged at the bottom of the second movable frame (13), the sleeve (15) is sleeved outside a cylinder body of the second electric push rod (14), a telescopic rod of the second electric push rod (14) is connected with the sleeve (15), the slurry pump (16) is arranged at the bottom of the sleeve (15), the material feeding pipe (17) is connected with a discharge hole of the slurry pump (16) and keeps communication, the upper end of the material feeding pipe (17) is positioned right above the material guiding frame (6), the material blocking assembly comprises the controller (18) and is arranged at the side face of one fixing frame (3), the third electric push rod (19) is symmetrically arranged at two sides of the material guiding frame (6), the mounting frame (20) is symmetrically arranged on the side face of the material guiding frame (22), the telescopic rod of the third electric push rod (19), the inner side of the pressure sensor (21) is symmetrically arranged at the side face of the hollow baffle (22), the inner side face (22) is connected with the hollow slide bar (23) and comprises the flushing assembly and is in contact with the sliding assembly, the fixed plate (24) is in contact fit with the connecting plate (10); the water supply device comprises a connecting spring (25), a hollow plate (26), a spray head (27), a water supply mechanism, a control switch (31) and a control switch (31), wherein the connecting spring is wound on the outer side of a sliding rod (23), two ends of the connecting spring (25) are respectively connected with a fixed plate (24) and a hollow frame (4), the hollow plate (26) is connected to the other end of the sliding rod (23), the hollow plate (26) is positioned in the hollow frame (4), the spray head (27) is arranged on the hollow plate (26) at intervals, the water supply mechanism is arranged in the hollow frame (4) and is used for conveying water in the hollow frame (4) to the spray head (27) for spraying, the water supply mechanism comprises a water pump (28) which is arranged at the inner bottom of the hollow frame (4), a shunt tube (29) is connected to a water outlet of the water pump (28) and is communicated, the end of the shunt tube (29) is connected with the hollow plate (26) and is communicated with the hollow plate (30), the control valve is arranged on the shunt tube (29), and the control switch (31) is symmetrically arranged on the inner wall of the hollow frame (4) and the hollow plate (26) is in contact fit with the control switch (31).
2. The solid-liquid separation device for cadmium-containing wastewater treatment according to claim 1, further comprising a guide rod (32) symmetrically and slidingly connected to the drain frame (5), a blocking plate (33) connected to the end of the guide rod (32) and in contact with the inner wall of the drain frame (5), and a return spring (34) wound on the outer side of the guide rod (32), wherein both ends of the return spring (34) are respectively connected with the drain frame (5) and the blocking plate (33).
3. The solid-liquid separation device for cadmium-containing wastewater treatment according to claim 1, further comprising a square plate (35) connected to the feed pipe (17), and an elastic membrane (36) with both ends respectively connected to the bottom of the square plate (35) and the top of the guide frame (6).
4. The solid-liquid separation device for cadmium-containing wastewater treatment according to claim 1, further comprising scraping plates (37) connected to the outer wall of the sleeve (15) at intervals in the circumferential direction.
CN202511006391.2A 2025-07-22 2025-07-22 Solid-liquid separation device for cadmium-containing wastewater treatment Active CN120504380B (en)

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CN202511006391.2A CN120504380B (en) 2025-07-22 2025-07-22 Solid-liquid separation device for cadmium-containing wastewater treatment

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Application Number Priority Date Filing Date Title
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CN116986711A (en) * 2023-09-28 2023-11-03 广州水务环保技术有限公司 Advanced dephosphorization device for sewage treatment
CN118929998A (en) * 2024-08-09 2024-11-12 马鞍山市方正机械制造有限责任公司 A sedimentation tank slurry automatic discharge treatment system

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CN115340279A (en) * 2022-07-29 2022-11-15 中国港湾工程有限责任公司 Sludge treatment device
CN218757880U (en) * 2022-12-10 2023-03-28 中州水务控股有限公司 Sludge cleaning device for regulation and storage tank
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Publication number Priority date Publication date Assignee Title
CN112408740A (en) * 2020-09-30 2021-02-26 无锡科立雅纯水科技有限公司 Sludge dewatering squeezes and folds spiral shell machine
CN215046473U (en) * 2021-07-02 2021-12-07 济南成然环保科技有限公司 A sludge conveying device for sludge dewatering machine
CN116986711A (en) * 2023-09-28 2023-11-03 广州水务环保技术有限公司 Advanced dephosphorization device for sewage treatment
CN118929998A (en) * 2024-08-09 2024-11-12 马鞍山市方正机械制造有限责任公司 A sedimentation tank slurry automatic discharge treatment system

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Application publication date: 20250819

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Denomination of invention: A solid-liquid separation device for cadmium-containing wastewater treatment

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