CN113998860A - Multifunctional combined mud discharging device - Google Patents
Multifunctional combined mud discharging device Download PDFInfo
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- CN113998860A CN113998860A CN202111359557.0A CN202111359557A CN113998860A CN 113998860 A CN113998860 A CN 113998860A CN 202111359557 A CN202111359557 A CN 202111359557A CN 113998860 A CN113998860 A CN 113998860A
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- sludge
- filter screen
- mud
- cylindrical filter
- device body
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- 238000007599 discharging Methods 0.000 title claims description 15
- 239000010802 sludge Substances 0.000 claims abstract description 142
- 239000000463 material Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 238000004140 cleaning Methods 0.000 claims description 19
- 239000002002 slurry Substances 0.000 claims description 13
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 15
- 230000018044 dehydration Effects 0.000 abstract description 8
- 238000006297 dehydration reaction Methods 0.000 abstract description 8
- 239000010865 sewage Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005406 washing Methods 0.000 description 12
- 238000001914 filtration Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 238000004062 sedimentation Methods 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000011010 flushing procedure Methods 0.000 description 5
- 238000011001 backwashing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6407—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes
- B01D29/6415—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes with a rotary movement with respect to the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/143—Filter condition indicators
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a multifunctional combined sludge discharge device, relates to the technical field of sewage treatment, and solves the problems of easy sludge blockage, difficult operation, single function, high investment cost and the like of the traditional sludge discharge device; the main shaft is rotationally connected with the main shaft in the device body, the main shaft is provided with a helical blade which pushes materials from the sludge inlet to the direction of the sludge outlet when the main shaft rotates, a cylindrical filter screen sleeved outside the main shaft is further connected in the device body, the sludge inlet is communicated with the inner side of the cylindrical filter screen, and the outer side of the cylindrical filter screen is communicated with the drain valve; the device body is internally provided with an opening and closing device which is positioned between the inner side of the cylindrical filter screen and the sludge discharge port. The process flow of conveying sludge to sludge concentration and dehydration is shortened, and the multifunctional and integrated efficient sludge discharge and dehydration effect of sludge concentration and dehydration is realized.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a multifunctional combined sludge discharge device.
Background
The sludge discharge device is an indispensable part in a sewage treatment system, and the traditional sludge discharge device mainly adopts a sludge discharge pipeline to directly convey sludge to a sludge concentration tank/a sludge sedimentation tank or conveys the sludge to a sludge dewatering device through a sludge discharge pump for dewatering and concentration and then carries out safe treatment. The defects of the process flow are as follows:
1) the combined operation of the multiple devices results in more operation procedures and higher equipment maintenance cost;
2) the sludge discharge process of the process section generally runs intermittently, the sludge discharge pipe is overlong and is buried underground, and a large amount of sludge in the sludge discharge pipeline is accumulated when the sludge is stored and transported, so that the sludge discharge pipe is frequently blocked, the washing process is frequently operated, the washing effect is poor, the replacement cost of the sludge discharge pipe is high, and the like.
3) In the process, sludge discharge and sludge dewatering are relatively independent systems with single function, the investment of civil engineering and process equipment is large, the operation cost is high, in addition, the sludge production amount in a plurality of sewage treatment processes is small, and the high investment of a sludge system can cause the environment economic benefit of the whole sewage treatment system to be poor.
Disclosure of Invention
The invention aims to provide a multifunctional combined sludge discharge device, which solves the problems of easy pollution and blockage, difficult operation, single function, high investment cost and the like of the traditional sludge discharge device, shortens the process flow from sludge conveying to sludge concentration and dehydration, and realizes the multifunctional and integrated efficient sludge discharge and dehydration target of sludge concentration and dehydration.
The technical purpose of the invention is realized by the following technical scheme:
a multifunctional combined type sludge discharge device comprises a device body, wherein one end of the device body is provided with a sludge inlet, and the other end of the device body is provided with a sludge discharge port;
the main shaft is rotationally connected in the device body, the main shaft is provided with a helical blade which pushes materials from the sludge inlet to the sludge outlet when the main shaft rotates, a cylindrical filter screen sleeved outside the main shaft is further connected in the device body, the sludge inlet is communicated with the inner side of the cylindrical filter screen, and the outer side of the cylindrical filter screen is communicated with the drain valve; the device body is internally provided with an opening and closing device which is positioned between the inner side of the cylindrical filter screen and the sludge discharge port.
Furthermore, the cylindrical filter screen is provided with two layers, one layer is connected in the device body, and the other layer is connected on the main shaft and rotates along with the main shaft.
Furthermore, the outer side of the spiral blade is provided with a rotating brush.
Furthermore, the opening and closing device comprises a mudguard, the mudguard is movably connected in the device body, and the movement position of the mudguard comprises a closing position and an opening position, wherein the closing position is arranged at one end of the cylindrical filter screen in a blocking mode, and the opening position is separated from the cylindrical filter screen.
Furthermore, an expansion spring is arranged between one end of the device body close to the mud discharging port and the mud guard, and the expansion spring drives the mud guard to abut against one end of the cylindrical filter screen.
Furthermore, the opening and closing device comprises a mud discharging gate valve connected with the mud port.
Furthermore, the mud inlet is connected with an automatic mud inlet slurry valve for controlling the opening and closing of the mud inlet.
Furthermore, a cleaning valve is communicated with the device body, and washing water enters the outer side of the cylindrical filter screen through the cleaning valve.
Furthermore, a differential pressure transmitter is arranged at the sludge inlet.
Furthermore, when the device continuously operates until the differential pressure transmitter senses that the mud inlet pressure difference value is larger than a set value, mud inlet is stopped, the cleaning valve is opened, and the inside of the device body is washed.
In conclusion, the invention has the following beneficial effects:
1. the sludge discharge device integrates sludge concentration and sludge dewatering, and the water content of the sludge is as low as 85 percent after the sludge is treated by the device;
2. the double-layer wedge-shaped cylindrical filter screen structure is adopted, so that the output rate of low turbid water is improved, and a high-power self-cleaning effect can be achieved during backwashing;
3. the spiral pusher with the steel rotary brush is arranged, so that the structure is beneficial to the efficient concentration of sludge in the sludge dewatering process, and meanwhile, when the inside of the device is automatically washed, the rotary brush can quickly recover the passing rate of a filter screen in the automatic rotating process by utilizing the self rigidity, so that the automatic washing efficiency is improved;
4. the invention adopts an external square and internal round type, the interior of the invention is of a pipeline structure, a water filtering and discharging channel is integrated, an internal and external double-layer wedge-shaped filter screen, a spiral material pusher containing a steel rotating brush, a fixed type mudguard, an electric cabinet and a high-efficiency integrated structure;
5. the invention is provided with a differential pressure transmitter, which detects the water pressure values of the mud inlet pipe and the water outlet pipe in real time and automatically starts a flushing program when the detected differential pressure reaches a designed value;
6. the invention has simple equipment structure, simple and convenient operation, can realize unattended operation, on-site/remote monitoring, and has less electric equipment, small power, small occupied area and low investment and operation cost.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure, 1, an apparatus body; 2. an automatic slurry valve; 3. cleaning the valve; 4. a filtered water outlet channel; 5. a cylindrical filter screen; 6. a helical blade; 7. a fender; 8. a screw pusher power unit; 9. a sludge discharge port; 10. a mud discharge gate valve; 11. a control cabinet; 12. a support leg; 13. a drain valve; 14. a sludge inlet; 15. a telescoping spring.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings, and the present embodiment is not to be construed as limiting the invention.
The first embodiment is as follows:
a multifunctional combined sludge discharge device is shown in figure 1 and comprises a device body 1, wherein the main body part of the device is of an external square and internal round type, and the interior of the device is of a pipeline structure; steel supporting legs 12 are uniformly distributed at the lower part of the device main body, and the running load of the device main body is supported by the supporting legs 12; the upper part of one end of the device body 1 is communicated with a sludge inlet 14, and the lower part of the other end is communicated with a sludge outlet 9.
As shown in fig. 1, the upper end of the sludge inlet 14 is communicated with a sludge hopper, sludge generated by an overground sludge concentration tank/sludge sedimentation tank is stored in the sludge hopper at the lower part of the tank body, timed sludge discharge is usually set according to the sludge retention time designed by the tank body, and the sludge content of the discharged sludge is 3% -5% by adding a medicament into the tank body according to the sludge characteristics;
the lower end of the sludge discharge port 9 is provided with a sludge truck, sludge (the water content is not higher than 85%) dehydrated by the device enters the sludge discharge port 9 and is finally stored in the sludge truck, and the sludge truck is periodically cleared.
As shown in fig. 1, a coaxially arranged main shaft is rotatably connected in a device body 1, a cylindrical filter screen 5 sleeved outside the main shaft is further connected in the device body 1, a helical blade 6 for pushing materials from a sludge inlet 14 to a sludge outlet 9 when the main shaft rotates is arranged on the main shaft, the cylindrical filter screen 5 and the helical blade 6 form a helical pusher for continuously pushing the sludge to the sludge outlet 9, and the dehydration is realized by matching with the filtering effect of the cylindrical filter screen 5.
As shown in fig. 1, the cylindrical filter screen 5 has two layers, namely an inner layer wedge-shaped filter screen and an outer layer wedge-shaped filter screen, one layer is connected in the device body 1, and the other layer is connected on the main shaft and rotates along with the main shaft; the meshes of the inner and outer layers of wedge-shaped filter screens are different from 40 to 60 meshes, the sludge inlet 14 is communicated with the inner side of the cylindrical filter screen 5, the outer side of the cylindrical filter screen 5 is communicated with the electric drain valve 13, and the electric drain valve 13 is communicated with the lowest point at the bottom of the device body 1 and is used for draining filtered water.
Specifically, in order to reduce the blocking problem of the filter screen, in the cylindrical filter screen 5, an inner mesh is fixed, one end of the inner mesh, which is close to the sludge inlet 14, is welded and fixed in the device body 1 through an inner end plate, an outer mesh is movable, one end of the outer mesh, which is close to the sludge outlet 9, is fixed with an outer end plate, the inner ring of the outer end plate is welded and ensured to run synchronously with the main shaft through a plurality of connecting rods, and the filter screen is effectively prevented from being blocked by dirt through power provided by the movable outer filter screen;
the inner ring of the outer end plate extends inwards to the inner net position, the outer ring abuts against the inner circumferential surface of the device body 1, one end of the inner net, far away from the sludge inlet 14, abuts against/is rotatably connected to the outer end plate, one end of the outer net, far away from the sludge outlet 9, abuts against/is rotatably connected to the inner end plate, and the connection of the double-layer filter screens is realized in an opposite nesting mode; a cylindrical filtering water outlet channel 4 is defined by the outer end plate, the inner end plate, the outer side of the inner net and the inner side of the device body 1, the sludge inlet 14 and the sludge outlet 9 are only communicated with the inner side of the inner net, and the filtering water outlet channel 4 on the outer sides of the inner net and the outer net only allows filtering water or flushing water to enter and exit;
the outer net and the main shaft are welded to ensure synchronous operation, the outer net can further obstruct the filtered water of the inner layer, the mud content of the filtered water is reduced, and the filtered water is discharged from the drain valve 13; when the device is washed, the surrounding fluid is moved mutually by the power provided by the movable external filter screen, which is beneficial to the cleaning of the filter screen.
As shown in fig. 1, a super wear-resistant hard alloy layer is deposited on the main shaft and the helical blade 6, and a steel wear-resistant rotating brush is fixed on the outer side of the helical blade 6. In the sludge dewatering process, this structure is favorable to the high-efficient concentration of mud to can prevent among the mud that great solid particle from damming on the filter screen because of its viscidity large tracts of land, when the inside automatic washing of device simultaneously, the usable self rigidity of commentaries on classics brush resumes the throughput of filter screen fast in the autogiration process, improves the efficiency that washes automatically.
As shown in figure 1, one end of the device body 1 close to the mud discharging port 9 is also connected with a spiral pusher power device 8 for driving the main shaft to rotate, the spiral pusher power device comprises a motor and a speed reducer, the spiral pusher power device 8 comprises a motor and a speed reducer which are all horizontally arranged, the center line of the spiral pusher power device coincides with the center line of the device, the output shaft of the spiral pusher power device 8 is in forward and reverse bidirectional transmission, and the rotating speed is regulated in a variable frequency stepless mode.
As shown in fig. 1, the upper part of the device body 1 is communicated with a washing water automatic cleaning valve 3, and washing water is uniformly communicated with the outer side of the upper part of the device body 1 by a plurality of branches through the cleaning valve 3 so as to be uniformly introduced into a filtered water outlet channel 4 on the outer side of a mesh of a cylindrical filter screen 5;
in order to improve the flushing effect, horizontal clapboards which are abutted against two sides of the outer net can be symmetrically arranged in the device body 1 to divide the filtering water outlet channel 4 into an upper part and a lower part, and flushing water is introduced from the upper part and is discharged from a drain valve 13 communicated with the lower part of the filtering water outlet channel 4 after being introduced into the outer net and the inner net; a washing water discharge pipe may be separately connected to the sludge inlet 14 or the sludge outlet 9 of the apparatus body 1, and the washing water may be introduced from the filtered water passage 4, introduced into the outer net and the inner net, and then discharged from the washing water discharge pipe connected to the inner side of the inner net.
As shown in fig. 1, a mud inlet 14 is connected with a mud inlet automatic slurry valve 2 for controlling the opening and closing of the mud inlet; a differential pressure transmitter is arranged at the sludge inlet 14;
a control cabinet 11 is fixed on the upper part of one end of the device body 1 close to the sludge discharge port 9 and is used for controlling the starting and stopping of the device and giving a fault alarm; the upper part of the device body 1 is provided with an electric cabinet which is welded with equipment, a PLC control system is arranged in the electric cabinet, and protection and alarm signals such as emergency stop, motor overheating/overload and the like, remote/local signals are arranged in the electric cabinet, so that the automatic operation of the equipment is ensured under the condition of on-site unattended operation;
when the device continuously operates until a differential pressure transmitter senses that a mud inlet pressure difference value is larger than a set value, stopping mud inlet through the mud inlet automatic slurry valve 2 and opening the cleaning valve 3 to flush the inside of the device body 1; in the embodiment, after the device continuously operates every time, a mud inlet pressure value is output to the electric cabinet through the differential pressure transmitter, when the mud inlet pressure value is larger than 0.20MPa, a closing signal of the mud inlet automatic slurry valve 2 is output through the device control box, the cleaning valve 3 is opened, the interior of the device body 1 is cleaned, and the cleaning is stopped after the cleaning time is set to be 3-5 min; all automatic valves in the device are set to be quick-opening valves, and meanwhile, the electric cabinet is provided with protection and alarm signals such as emergency stop, motor overheating/overload and the like, remote/local signals, and automatic operation of equipment is guaranteed under the condition of field unattended operation.
Or the closing signal of the mud inlet automatic slurry valve 2 can be output at regular time through the device control box, the cleaning valve 3 is automatically opened, the inside of the device is washed, and the washing is stopped after the washing time is set to be 3-5 min.
As shown in fig. 1, an opening and closing device is arranged in the device body 1 and is positioned between the inner side of the inner net of the cylindrical filter screen 5 and the sludge discharge port 9; the opening and closing device comprises a mud discharge gate valve 10 connected with a mud port. The spiral pusher continuously accumulates and pushes the dewatered sludge to the upper part of the sludge discharge port 9, the sludge discharge port 9 stores the dewatered sludge into a sludge truck at regular time through a sludge discharge gate valve 10, and the sludge truck is regularly cleaned and transported.
Example two:
the structure of the present embodiment is substantially the same as that of the embodiment, except that:
the opening and closing device also comprises a mudguard 7, the mudguard 7 is movably connected in the device body 1, and the movement position of the mudguard 7 comprises a closing position which is arranged at one end of the cylindrical filter screen 5 in a blocking way and an opening position which is separated from the cylindrical filter screen 5;
in the embodiment, the mud guard 7 slides along the direction of the main shaft, the telescopic spring 15 is arranged between the end surface of the device body 1 close to one end of the mud discharging port 9 and the mud guard 7, the telescopic spring 15 is sleeved outside the main shaft and is welded and fixed with the fixed mud guard 7, and the telescopic spring 15 drives the mud guard 7 to abut against one end of the cylindrical filter screen 5;
the mud 7 left side is bulldozed in the continuous accumulation of the mud that the spiral pusher will dewater, opens fender 7 when pressure is greater than the thrust of expanding spring 15, and the mud (moisture content not higher than 85%) entering mud discharging opening 9 after the dehydration, and mud discharging opening 9 rethread mud discharging gate valve 10 is regularly stored the mud that dewaters to the mud car, and the mud car is cleared away at regular intervals.
The device body 1 integrates a filtering water outlet channel 4, an inner and outer double-layer wedge-shaped filter screen, a spiral material pusher with a steel rotating brush, a mud blocking fixing plate and an electric cabinet into a whole, and has a high-efficiency integrated structure;
the method mainly collects the sludge discharged from the bottom of the overground sludge concentration tank/sludge sedimentation tank, and the sludge is continuously and repeatedly operated in the combined sludge discharge device through a differential screw machine to gradually concentrate and dehydrate the sludge so as to achieve solid-liquid separation; the water content of the mud discharged by the device is reduced to 85 percent, and the mud cake is discharged and then is safely treated;
meanwhile, in the non-sludge-discharging time of the sludge concentration tank/sludge sedimentation tank, industrial water is introduced and the inner wall of the cleaning device is prevented from being drained smoothly by using the high-strength rotating brush on the spiral rotating shaft, so that the stable operation of the device is ensured.
The working process is as follows:
step 1: sludge generated by the sludge concentration tank/sludge sedimentation tank is regularly discharged according to time setting, before the sludge is discharged, an electric drain valve 13 is controlled to be opened, then an automatic slurry valve 2 is started, the sludge enters a fixed sludge inlet 14 through the automatic slurry valve 2 and enters the device, and the running time of the automatic slurry valve 2 is timed and controlled;
after the operation time set by the automatic slurry valve 2, namely the inside of the device is filled with sludge, the drain valve 13 is opened, the spiral pusher is opened, the sludge is continuously concentrated under the operation of the spiral pusher, meanwhile, the external filter screen operates along with the pusher, after the sludge is dehydrated deeply in the inner and outer filter screens, the filtered water quality contains lower suspended matters, after a certain time (the time is adjustable), the spiral pusher stops operating, and the discharged sewage is discharged through the drain valve 13;
closing the drain valve 13, continuously opening the spiral material pusher, continuously accumulating and pushing the dewatered sludge to one side of the mudguard 7 far away from the sludge discharge port 9, opening the fixed mudguard 7 when the pressure of the sludge on the mudguard 7 is greater than the thrust of the telescopic spring 15 on the mudguard 7, allowing the dewatered sludge (the water content is not higher than 85%) to enter the sludge discharge port 9 to fall into a sludge truck for storage, and periodically clearing and transporting the sludge truck.
Step 2: when the device normally feeds mud and each time the equipment runs for a certain time, the automatic mud feeding slurry valve 2 and the mud discharging gate valve 10 are closed, the cleaning valve 3 (the pressure of the backwashing water is not less than 0.3 MPa) and the water discharging valve 13 are opened, so that the flushing water is backwashed from the outer layer filter screen to the inner layer filter screen, the spiral pusher continues to run, the steel rotating brush accompanied with the blade edge of the spiral pusher efficiently cleans the inner layer filter screen and the outer layer filter screen, the flushing time is set to be 3-5min and then is stopped, and the backwashing water is discharged through the water discharging valve 13.
The installation requirement of the device is as follows:
1. the lower part of the sludge bucket of the overground sludge thickening tank/the sludge sedimentation tank is provided with an installation space which is not less than the height of the device;
2. site requirements are as follows: leveling the ground;
3. a certain operation space is reserved in the front and the back of the electric cabinet, so that field operation and cable installation are facilitated;
4. electrical requirements are as follows: 380V and 50 HZ.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a mud device is arranged to many function combination formula which characterized in that: the device comprises a device body (1), wherein one end of the device body (1) is provided with a sludge inlet (14), and the other end of the device body is provided with a sludge outlet (9);
a main shaft is rotatably connected in the device body (1), a spiral blade (6) which pushes materials from a sludge inlet (14) to a sludge outlet (9) when the main shaft rotates is arranged on the main shaft, a cylindrical filter screen (5) sleeved outside the main shaft is further connected in the device body (1), the sludge inlet (14) is communicated with the inner side of the cylindrical filter screen (5), and the outer side of the cylindrical filter screen (5) is communicated with a drain valve (13); the device body (1) is internally provided with an opening and closing device which is positioned between the inner side of the cylindrical filter screen (5) and the sludge discharge port (9).
2. The multifunctional combined sludge discharge device of claim 1, wherein: the cylindrical filter screen (5) is provided with two layers, one layer is connected in the device body (1), and the other layer is connected on the main shaft and rotates along with the main shaft.
3. A multifunctional combined sludge discharge device according to claim 1 or 2, wherein: the outer side of the helical blade (6) is provided with a rotating brush.
4. A multifunctional combined sludge discharge device according to claim 1 or 2, wherein: the opening and closing device comprises a splash guard (7), the splash guard (7) is movably connected into the device body (1), and the movement position of the splash guard comprises a closing position and an opening position, wherein the closing position is arranged at one end of the cylindrical filter screen (5) in a blocking mode, and the opening position is separated from the cylindrical filter screen (5).
5. The multifunctional combined sludge discharge device of claim 4, wherein: an expansion spring (15) is arranged between one end of the device body (1) close to the mud discharging port (9) and the mud guard (7), and the expansion spring (15) drives the mud guard (7) to abut against one end of the cylindrical filter screen (5).
6. A multifunctional combined sludge discharge device according to claim 1 or 4, wherein: the opening and closing device comprises a mud discharge gate valve (10) connected with a mud port.
7. The multifunctional combined sludge discharge device of claim 1, wherein: the mud inlet (14) is connected with a mud inlet automatic slurry valve (2) for controlling the opening and closing of the mud inlet automatic slurry valve.
8. A multifunctional combined sludge discharge device according to claim 1 or 7, wherein: the device body (1) is communicated with a cleaning valve (3), and cleaning water enters the outer side of the cylindrical filter screen (5) through the cleaning valve (3).
9. A multifunctional combined sludge discharge device according to claim 1 or 7, wherein: and a differential pressure transmitter is arranged at the sludge inlet (14).
10. A multifunctional combined sludge discharge device according to claim 9, wherein: when the device continuously operates until the differential pressure transmitter senses that the mud inlet differential pressure value is larger than a set value, the mud inlet is stopped, the cleaning valve (3) is opened, and the inside of the device body (1) is washed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111359557.0A CN113998860B (en) | 2021-11-17 | 2021-11-17 | Multifunctional combined mud discharging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111359557.0A CN113998860B (en) | 2021-11-17 | 2021-11-17 | Multifunctional combined mud discharging device |
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| JP2001025618A (en) * | 1999-07-12 | 2001-01-30 | Tsurumi Mfg Co Ltd | Filtering dehydrator fitted with washing device |
| EP1147008A1 (en) * | 1999-11-30 | 2001-10-24 | Ishigaki Company Limited | Screw press apparatus |
| CN2565240Y (en) * | 2002-12-16 | 2003-08-06 | 王绍康 | Integrated device for condensating squeezing and dewatering |
| CN202089877U (en) * | 2011-03-30 | 2011-12-28 | 湖南永清机械制造有限公司 | Spiral batch-type sludge extruding dewaterer |
| CN205687777U (en) * | 2016-06-20 | 2016-11-16 | 北京万侯环境技术开发有限公司 | Sludge pressing dehydration device |
| CN208055751U (en) * | 2017-12-20 | 2018-11-06 | 东莞理文造纸厂有限公司 | High over dry squash type solid-liquid separating machine |
| CN111153581A (en) * | 2019-12-30 | 2020-05-15 | 霸州嘉明扬科技有限公司 | Spiral extrusion type solid-liquid separator |
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- 2021-11-17 CN CN202111359557.0A patent/CN113998860B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001025618A (en) * | 1999-07-12 | 2001-01-30 | Tsurumi Mfg Co Ltd | Filtering dehydrator fitted with washing device |
| EP1147008A1 (en) * | 1999-11-30 | 2001-10-24 | Ishigaki Company Limited | Screw press apparatus |
| CN2565240Y (en) * | 2002-12-16 | 2003-08-06 | 王绍康 | Integrated device for condensating squeezing and dewatering |
| CN202089877U (en) * | 2011-03-30 | 2011-12-28 | 湖南永清机械制造有限公司 | Spiral batch-type sludge extruding dewaterer |
| CN205687777U (en) * | 2016-06-20 | 2016-11-16 | 北京万侯环境技术开发有限公司 | Sludge pressing dehydration device |
| CN208055751U (en) * | 2017-12-20 | 2018-11-06 | 东莞理文造纸厂有限公司 | High over dry squash type solid-liquid separating machine |
| CN111153581A (en) * | 2019-12-30 | 2020-05-15 | 霸州嘉明扬科技有限公司 | Spiral extrusion type solid-liquid separator |
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| CN113998860B (en) | 2022-09-20 |
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