CN113683283A - Full-automatic small sludge dewatering dryer and dewatering method thereof - Google Patents
Full-automatic small sludge dewatering dryer and dewatering method thereof Download PDFInfo
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- CN113683283A CN113683283A CN202111001294.6A CN202111001294A CN113683283A CN 113683283 A CN113683283 A CN 113683283A CN 202111001294 A CN202111001294 A CN 202111001294A CN 113683283 A CN113683283 A CN 113683283A
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- 239000010802 sludge Substances 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims description 7
- 238000005192 partition Methods 0.000 claims abstract description 19
- 238000003756 stirring Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910001220 stainless steel Inorganic materials 0.000 claims description 37
- 239000010935 stainless steel Substances 0.000 claims description 37
- 238000010438 heat treatment Methods 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 15
- 238000000926 separation method Methods 0.000 claims description 11
- 230000018044 dehydration Effects 0.000 claims description 10
- 238000006297 dehydration reaction Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 230000017525 heat dissipation Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 208000005156 Dehydration Diseases 0.000 claims 3
- 239000004743 Polypropylene Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006298 dechlorination reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- 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
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- 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
- B01D29/13—Supported filter elements
- B01D29/23—Supported filter elements arranged for outward flow filtration
- B01D29/27—Filter bags
-
- 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
- B01D29/62—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
- B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
- B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
-
- 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
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
- C02F11/131—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating using electromagnetic or ultrasonic waves
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a full-automatic small-sized sludge dewatering dryer, which comprises: the barrel assembly comprises a sleeve and a top cover, wherein the top cover is provided with a plurality of connectors, a partition plate is arranged in the sleeve, the top surface of the partition plate is provided with an annular groove and a positioning groove, and the side part of the sleeve is positioned above the partition plate and provided with a water outlet; the filter assembly comprises a filter cylinder, a filter bag is arranged in the filter cylinder, an annular boss matched with the annular groove and a limiting boss matched with the limiting groove are arranged at the bottom of the filter cylinder, and the annular boss and the limiting boss can be respectively embedded into the annular groove and the limiting groove; the driving assembly comprises a driving motor and a stirring shaft, a first permanent magnet is mounted on an output shaft of the driving motor, a supporting seat is fixed on the top cover, a second permanent magnet is mounted in the supporting seat through a first bearing, the stirring shaft is fixedly mounted on the second permanent magnet, a spiral scraper is arranged on the stirring shaft, and the stirring shaft and the spiral scraper extend into the filter bag.
Description
Technical Field
The invention relates to the technical field of environmental treatment equipment, in particular to a sludge dewatering dryer.
Background
Small-size sewage treatment device and water treatment technical research laboratory sludge dewatering often adopt the plate frame filter-pressing or fold spiral shell hydroextractor, have that area occupied is big, dehydration efficiency is low, intensity of labour is high and operation maintenance is troublesome scheduling problem, especially under the less condition of sludge amount, equipment type selection is comparatively difficult, and it is inconvenient to use.
The plate and frame filter press has the disadvantages that a feed inlet of a filter frame is easy to block, filter cakes are not easy to take out, continuous operation cannot be realized, automatic control is difficult to realize, the labor intensity is high, filter bags are troublesome to clean, unattended operation is difficult to realize, and the water content of discharged mud is more than 60%. The spiral sludge dewatering machine has high noise, the water content of discharged sludge is high relative to a plate frame machine, the equipment is lossy in use, and sometimes the liquid level protection function is abnormal because the electrodes are wrapped by impurities in the sludge.
The existing small (or micro) sludge dewatering machine adopts a vacuum filtration mode, has the problems of low dewatering efficiency, easy blockage of a filter bag, high sludge water content, large energy consumption of matched equipment and the like, and limits popularization and application.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a full-automatic small sludge dewatering dryer and a dewatering method thereof, and the full-automatic small sludge dewatering dryer has the advantages of small volume, small occupied area, high dechlorination efficiency and simple and convenient operation.
The purpose of the invention is realized as follows: a full-automatic small-sized sludge dewatering dryer, the dryer comprising:
the barrel assembly is arranged on the base and comprises a sleeve, a top cover is arranged at the top of the sleeve, a plurality of connectors are formed in the top cover, a partition plate is arranged in the sleeve and divides the sleeve into a filtering area at the upper part and a heating area at the lower part, an annular groove and a positioning groove are formed in the top surface of the partition plate, and a water outlet is formed in the side part of the sleeve, which is positioned above the partition plate;
the filter assembly is arranged in the cylinder assembly and comprises a filter cylinder arranged in a filter area, a filter bag is arranged in the filter cylinder, an annular boss matched with the annular groove and a limiting boss matched with the limiting groove are arranged at the bottom of the filter cylinder, and the annular boss and the limiting boss can be respectively embedded into the annular groove and the limiting groove;
the driving assembly is installed on the top cover and comprises a driving motor and a stirring shaft, wherein the driving motor is located outside the top cover, the stirring shaft is located inside the top cover, a first permanent magnet is installed on an output shaft of the driving motor, a supporting seat is fixed on the inner top wall of the top cover, a second permanent magnet is installed in the supporting seat through a first bearing, a stirring shaft is fixedly installed on the second permanent magnet, a spiral scraper is arranged on the stirring shaft, and the stirring shaft and the spiral scraper stretch into the filter bag.
As a further limitation of the invention, a second bearing is also arranged in the barrel component, an inner ring of the second bearing is sleeved on the stirring shaft, and an outer ring of the second bearing is connected to the inner wall of the top cover through a supporting rod.
As a further limitation of the invention, a microwave generator is arranged in the heating zone, and a heat dissipation grid is arranged on the inner wall of the heating zone.
As a further limitation of the invention, a top cover flange is arranged on the periphery of the bottom of the top cover, a sleeve flange is arranged on the periphery of the top of the sleeve, the top cover flange and the sleeve flange are fixedly connected through an eyebolt, and a sealing ring is arranged between the top cover flange and the sleeve flange.
As a further limitation of the invention, the top of the filter cylinder is open, and the side wall and the bottom plate of the filter cylinder are provided with a plurality of water permeable holes.
As a further limitation of the invention, the interface of the top cover is also connected with a pressure gauge, an exhaust valve, a gas-liquid separation valve and a temperature sensor.
As a further limitation of the invention, the sleeve is made of stainless steel.
A dehydration method of a full-automatic small sludge dehydration dryer comprises the following steps:
step 1) opening a manual valve and an electromagnetic valve, pumping sludge into a filter bag, and separating solid from liquid by the filter bag under the pressure action;
step 2) observing the pressure gauge, and when the reading of the pressure gauge reaches a set value, closing the electromagnetic valve and starting the driving motor;
step 3) observing a pressure gauge, stopping introducing sludge when the reading of the pressure gauge reaches a set value, closing a high-pressure sludge pump, closing a manual valve at the same time, and keeping a driving motor to be always started at the moment;
step 4) observing the pressure gauge, starting the microwave generator to heat the sludge in the filter cylinder once when the reading of the pressure gauge is stabilized at a set value, starting the driving motor once every other period of time during the heating of the microwave generator, continuously operating for a period of time each time, stopping the heating of the microwave generator after the period of time, starting the microwave generator again when the reading of the pressure gauge is reduced to the set value, heating the sludge in the filter cylinder for the second time, controlling the temperature in the cylinder between the range of the set value after a period of time, and stopping the microwave generator;
step 5) observing a pressure gauge, opening an exhaust valve and a gas-liquid separation valve when the pressure in the cylinder is higher than a set value, closing the exhaust valve and the gas-liquid separation valve after the pressure in the cylinder is reduced to the set value, and closing a driving motor and a microwave generator when the reading of the pressure gauge is 0 Mpa;
step 6), opening the top cover, cooling the filter drum to room temperature, sequentially taking out the filter bag and the filter drum, pouring out the dried sludge in the filter bag, and finally performing centralized treatment;
and 7) washing and airing the filter cylinder, cleaning sludge attached to the surface of the spiral scraper, putting the filter cylinder into the sleeve to enable the annular boss to be attached to the annular groove, rotating the filter cylinder to enable the limiting boss at the bottom of the filter cylinder to be embedded into the limiting groove, naturally putting the filter bag into the filter cylinder, covering a top cover, and waiting for the next sludge dewatering treatment.
Compared with the prior art, the invention has the beneficial effects that:
the invention dehydrates the sludge through the combined action of pressure filtration and microwave drying, reduces the water content of the sludge, increases the sludge discharge volume, and has small volume, low energy consumption and simple and convenient operation and maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of the top cover in embodiment 1.
Fig. 3 is a schematic structural diagram of a driving assembly in embodiment 1.
Fig. 4 is a plan view of the second bearing in embodiment 1.
Fig. 5 is a schematic view of an electric cabinet in embodiment 1.
FIG. 6 is a schematic view of a filter bag according to example 1.
FIG. 7 is a partial view of the separator and filter cartridge of example 1.
Fig. 8 is a plan view showing the installation of the first reserving member in embodiment 1.
The device comprises a barrel assembly 1, a sleeve 101, a top cover 102, a top cover flange 103, a sleeve flange 104, an eye bolt 105, an O-shaped sealing ring 106, a 107 connector, a pressure gauge 108, an exhaust valve 109, a gas-liquid separation valve 110, a temperature sensor 111, a mud inlet pipe 112, a high-pressure sludge pump 113, a check valve 114, a manual valve 115, a drain pipe 116, an electromagnetic valve 117, a partition plate 118, a microwave generator 119, a heat dissipation grid 120, an annular groove 121, a positioning groove 122, a first screw 123, a first reserved part 124, a second reserved part 125, a second screw 126, a filter assembly 2, a filter cartridge 201, a filter bag 202, an annular boss 203, a limiting boss 204, a driving assembly 3, a driving motor 301, a stirring shaft 302, a first permanent magnet 303, a supporting seat 304, a first bearing 305, a second permanent magnet 306, a spiral scraper 307, a second bearing 308, a supporting rod 309, a 4 base, a 5 junction box, a 6 electric control box 601 and a touch screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A fully automatic small sludge dewatering dryer as shown in fig. 1-8, comprising:
the cylinder component 1 is arranged on a base 4 and comprises a top cover 102 arranged on the top of a stainless steel sleeve 101, a top cover flange 103 is arranged on the periphery of the bottom of the top cover 102, a sleeve flange 104 is arranged on the periphery of the top of the sleeve 101, the top cover flange 103 is fixedly connected with the sleeve flange 104 through an eyebolt 105, an O-shaped sealing ring is arranged between the top cover flange 103 and the sleeve flange 104, a plurality of internal-rotation threaded interfaces 107 are arranged on the top cover 102, the internal-rotation threaded interfaces 107 are connected with a pressure gauge 108, an exhaust valve 109, a gas-liquid separation valve 110, a temperature sensor 111 and a mud inlet pipe 112, the mud inlet pipe 112 is connected with a high-pressure sludge pump 113, a check valve 114 and a manual valve 115 are arranged on the mud inlet pipe 112, a partition plate 118 is arranged in the sleeve 101, the partition plate 118 divides the sleeve 101 into a filtering area at the upper part and a heating area at the lower part, a microwave generator 119 is arranged in the sleeve, and the microwave generator 119 is arranged on the base 4, a heat dissipation grid 120 is installed on the inner wall of the heating area, an annular groove 121 and a positioning groove 122 are formed in the top surface of the partition plate 118, the side portion of the sleeve 101, which is located above the partition plate 118, is provided with a water outlet, a solenoid valve, 117 and the partition plate 118 are fixed on a first reserved part 124 through first screws 123, the first reserved part 124 is welded on the inner wall of the stainless steel sleeve 101, a second reserved part 125 is arranged at the bottom of the sleeve 101, the second reserved part 125 is fixed on the base 4 through second screws 126, 4 reserved holes, matched with the second reserved part 18 and the second reserved part 125 are reserved on the base 4;
the filter assembly 2 is arranged inside the barrel assembly 1 and comprises a cylindrical filter cartridge 201 arranged in a filter area, the top of the filter cartridge 201 is open, a plurality of water permeable holes are formed in the side wall and the bottom plate of the filter cartridge 201, the diameter of the filter cartridge 201 is 380mm, a filter bag 202 is arranged inside the filter cartridge 201, the filter bag 202 is made of polypropylene 750b materials and is 400 meshes in specification, the diameter of the filter bag 202 is 1mm smaller than that of the filter cartridge 201, the upper opening diameter is 100 mm, the outer layer of the filter bag 202 is tightly attached to the inner wall of the filter cartridge 201, an annular boss 203 matched with the annular groove 121 and a limiting boss 204 matched with the limiting groove are arranged at the bottom of the filter cartridge 201, and the annular boss 203 and the limiting boss 204 can be respectively embedded into the annular groove and the limiting groove;
drive assembly 3, it is installed on top cap 102, including drive motor 301 that is located the outside central point of top cap 102 and (mixing) shaft 302 that is located the inside central point of top cap 102, install first permanent magnet 303 on drive motor 301's the output shaft, be fixed with supporting seat 304 on the inside roof of top cap 102, install second permanent magnet 306 through first bearing 305 in the supporting seat 304, fixed (mixing) shaft 302 is gone up to second permanent magnet 306, be provided with spiral scraper 307 on the (mixing) shaft 302, (mixing) shaft 302 and spiral scraper 307 stretch into filter bag 202 and set up, the inside of barrel subassembly 1 still is equipped with second bearing 308, the inner circle cover of second bearing 308 is established on (mixing) shaft 302, the outer lane of second bearing 308 is connected on the inner wall of top cap 102 through bracing piece 309.
The specific details and principles are explained as follows:
the cylindrical filter cartridge 201 made of PP material is positioned in the upper part of the stainless steel sleeve 101, the diameter of the shell is 400mm, the diameter of the filter cartridge 201 is 380mm, a cylindrical small-opening filter bag 202 is arranged in the cylindrical small-opening filter cartridge, the filter bag 202 is made of 750b polypropylene fiber material and has the specification of 400 meshes, the diameter of the filter bag 202 is 1mm smaller than that of the filter cartridge 201, the opening diameter of the upper opening is 100 mm, and the outer layer of the filter bag 202 is tightly attached to the inner wall of the filter cartridge 201; the filter cartridge 201 is naturally placed into the stainless steel sleeve 101, the circular groove and the tongue of the bottom plate and the circular groove and the tongue of the inner side of the partition plate 118 are used for fixing the position, the filter bag 202 is naturally placed into the filter cartridge 201, and the filter bag 202 and the filter cartridge 201 can be taken out and cleaned.
During the sludge drying period, the phenomenon of blocking the pores of the filter bag 202 occurs, so that the stainless steel spiral scraper 307 is added in the filter bag 202, the distance between the scraper and the filter bag 202 is kept about 10mm, the sludge adhered to the surface of the filter bag 202 and thickened can be cut off after the scraper is opened, and the rotating speed of the stainless steel spiral scraper 307 is 15 r/min.
The driving motor 301 is fixed on the top cover 102 of the stainless steel sleeve 101, in order to avoid the phenomenon of water and mud leakage caused by the fact that the stirring shaft 302 penetrates through the top cover 102 of the stainless steel sleeve 101 and the phenomenon of overlarge resistance of a sealing bearing to increase the motor load, the output shaft of the driving motor 301 is in magnetic coupling with the stirring shaft 302 of the spiral scraper 307 in the filter cylinder 201, the upper part of the top cover 102 of the stainless steel sleeve 101 is provided with a first permanent magnet 303 and a bearing which are connected with the rotating shaft of the driving motor 301, the lower part of the top cover 102 of the stainless steel sleeve 101 is correspondingly provided with a second permanent magnet 306 and a first bearing 305, the spiral scraper 307 is arranged on the stirring shaft 302, the output shaft of the driving motor 301 rotates to drive the upper and lower permanent magnets of the top cover 102 of the stainless steel sleeve 101 to rotate, so as to drive the spiral scraper 307 to rotate, wherein the upper bearing is fixed at a position close to the top cover 102 by the sleeve 101, and the lower bearing is fixed by three support rods 309; the top cover 102 of the stainless steel sleeve 101 is connected with the stainless steel sleeve 101 by flanges 103 and 104, so that the upper flange and the lower flange are fixed by six stainless steel suspension ring bolts 105 in order to take out the spiral scraper 307, the filter cartridge 201 and the filter bag 202; an O-shaped sealing ring is arranged on a connecting flange between the top of the stainless steel sleeve 101 and the top cover 102, when a flange of the upper cover of the sleeve 101 is matched with a flange of the top of the sleeve 101 and the stainless steel eyebolt 105 is screwed, the upper cover of the sleeve 101 is completely sealed with the sleeve 101 through the O-shaped sealing ring.
The filter cartridge 201 is made of PP material, the upper opening of the filter cartridge is of a cartridge structure, and the cartridge wall and the bottom plate are provided with water permeable holes densely distributed with the aperture of 3 mm; for fixing, an annular boss 203 with the thickness of 5mm is arranged at the bottom of the cylinder wall, is embedded into the annular groove 121 of the partition plate 118 of the sleeve 101 and is closely combined with the annular groove, and the structure designed in such a way enables the filter cartridge 201 to be placed more conveniently. In order to prevent the filter cartridge 201 from rotating along with the sludge driven by the rotation of the spiral scraper 307, the bottom of the filter cartridge 201 is provided with 3 limiting bosses 204.
The stainless steel sleeve 101 is made of stainless steel, is of an upper opening cylindrical structure, and is connected with a top welding stainless steel flange 104 and a top cover 102 stainless steel flange 103. A PP circular partition plate 118 is arranged in the microwave oven, the sleeve 101 is divided into an upper part and a lower part, the upper part is a filter cartridge 201 and filter bag 202 structure part, and the lower part is a microwave generation heating part. The PP spacer 118 has a thickness of 10mm, is fixed to the first pre-made member 124 of the stainless steel sleeve 101 by 8 non-penetrating first screws 123, and is sealed by a rubber gasket.
The top cover 102 is made of stainless steel, and is of a head structure, and the middle position is a motor speed reducer sleeved installation base. The arrangement is as well as 8 manometer 108 screw interfaces 107, DN25 high-pressure sludge pump 113 sludge inlet screw interface 107, DN15 automatic exhaust valve 109 screw interface 107, DN20 gas-liquid separation valve 110 screw interface 107, DN20 thermometer sensor screw interface 107.
The stainless steel sleeve 101 is fixed on a stainless steel pressing steel plate base 4 with the thickness of 2.5mm, and the pressing steel plate base 4 is of an upward convex type, so that the stainless steel sleeve 101 is convenient to detach the fixing bolt. The microwave generating device (specifically, a microwave generator 119) is arranged on the steel plate base 4 on the inner side of the stainless steel sleeve 101, the height is 150mm, the power is 1000W, the stainless steel sleeve 101 on the periphery of the microwave generating device is provided with a heat dissipation grating 120, the microwave uniform heating performance is good, the stainless steel sleeve can be simply pulled out from a bottom access hole, and the stainless steel enclosure on the outer side (namely, a sleeve structure) has a perfect electric wave leakage-proof structure. 4 open on the flat edge at the bottom of 4 sides of suppression steel sheet bases in 18 round holes, the dehydration dryer of being convenient for and the fixed connection of installation basis.
The electric cabinet 6 is arranged on the outer side of the stainless steel sleeve 101 and fixed on the reserved part of the stainless steel sleeve 101, and the installation height is 600 mm. The size of the electric cabinet 6 is 300 multiplied by 400, the size of the junction box 5 is 200 multiplied by 200, a thermometer, a pressure gauge 108, a start stop button and a power supply display button are arranged on a panel of the electric cabinet 6, and necessary electric components such as a program controller, a circuit breaker, a contactor and a wiring terminal are arranged in the electric cabinet 6. The program controller adopts an industrial control man-machine touch screen 601PLC integrated machine to automatically control mud feeding, stirring, microwave heating and the like.
Example 2
A dehydration method of a full-automatic small sludge dehydration dryer comprises the following steps:
step 1) opening a manual valve 115, controlling a touch screen 601 on an electric cabinet 6, opening an electromagnetic valve 117, pumping sludge into a filter bag 202 through a high-pressure sludge pump 113, and separating solid and liquid by the filter bag 202 under the action of pressure;
step 2) observing the pressure gauge 108, when the reading of the pressure gauge 108 reaches 0.4Mpa (adjustable), controlling the touch screen 601 on the electric cabinet 6, closing the electromagnetic valve 117, starting the driving motor 301 in the driving assembly 3 to rotate to drive the first permanent magnet 303 to start rotating, and driving the second permanent magnet 306 to rotate under the action of magnetism, so that the stirring shaft 302 rotates, and meanwhile, the spiral scraper 307 arranged on the stirring shaft 302 rotates along with the rotation, and the spiral scraper 307 is adopted to extrude the concentrated sludge accumulated on the surface of the filter bag 202 into the bottom of the filter bag 202, so that the sludge is prevented from slowly accumulating into filter residues on the filter bag 202 to influence the filtering speed, and the filtering resistance is reduced, and the rotating speed of the spiral scraper 307 is 15 rpm;
step 3) stopping introducing the sludge when the reading of the pressure gauge 108 reaches 0.6Mpa (adjustable), adjusting a touch screen 601 switch button on the electric cabinet 6, closing the high-pressure sludge pump 113, closing the manual valve 115 at the same time, and then continuously opening the driving motor 301;
step 4) after the readings of the pressure gauge 108 are stable, adjusting a touch screen 601 switch button on the electric cabinet 6, starting the microwave generator 119, heating the sludge in the filter cartridge 201 to control the temperature to be between 25 ℃ and 80 ℃, further dehydrating the sludge, starting the driving motor 301 every 30 minutes during the heating period of the microwave generator 119, continuing to operate for 5 minutes each time, further moving the sludge attached to the inner wall of the filter bag 202 to the bottom of the filter bag 202, facilitating further dehydration of the sludge, adjusting the touch screen 601 switch button on the electric cabinet 6 after 2 hours, and closing the microwave generator 119 to stop heating;
step 5) when the reading of the pressure gauge 108 is reduced to 0.1Mpa, adjusting a switch button of a touch screen 601 on the electric control box 6, starting a microwave generator 119, carrying out secondary heating on the sludge in the filter cylinder 201, controlling the temperature to be between 25 ℃ and 80 ℃ after 30 minutes (adjustable), adjusting the switch button of the touch screen 601 on the electric control box 6, closing the heating button, setting a pressure signal in the touch screen 601, adjusting a program in the touch screen 601 on the electric control box 6 to be automatically opened when the pressure is higher than 0.1Mpa, automatically opening an exhaust valve 109 and a gas-liquid separation valve 110, adjusting the internal pressure of the stainless steel sleeve 101 until the internal pressure is 0.1Mpa, automatically closing the exhaust valve 109 and the gas-liquid separation valve 110, adjusting the switch button of the touch screen 601 on the electric control box 6 when the reading of the pressure gauge 108 is 0Mpa, closing a driving motor 301 and a power supply of the microwave generator 119, and disconnecting the plug of the connection box 5, simultaneously opening the stainless steel eyebolt 105;
step 6), opening the top cover 102, cooling the interior of the stainless steel sleeve 101 to room temperature, sequentially taking out the filter bag 202 and the filter cartridge 201, pouring out the dried sludge in the filter bag 202, and finally performing centralized treatment;
and 7) washing and airing the filter cartridge 201, cleaning sludge attached to the surface of the spiral scraper 307, placing the filter cartridge 201 into the sleeve 101, enabling the annular boss 203 to be attached to the annular groove 121, rotating the filter cartridge 201 to enable the limiting boss 204 at the bottom of the filter cartridge 201 to be attached to the limiting groove, naturally placing the filter bag 202 into the filter cartridge 201, covering the top cover 102, closing the stainless steel lifting bolt 105, and waiting for the next sludge dewatering treatment.
After the treatment by the equipment, the water content of the sludge is less than 20 percent, the sludge discharge volume is 25 percent of the volume of the sludge dehydrated by the screw-stacking dehydrator and 50 percent of the volume of the sludge dehydrated by the plate-and-frame filter press, and the equipment has the advantages of small volume, low energy consumption and simple and convenient operation and maintenance.
The above description of the embodiments is only intended to facilitate the understanding of the method of the invention and its core idea. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a full-automatic small-size sludge dewatering desiccator which characterized in that includes:
the barrel component (1) is arranged on the base (4) and comprises a sleeve, a top cover is arranged at the top of the sleeve, a plurality of connectors (107) are formed in the top cover, a partition plate (118) is arranged in the sleeve, the sleeve is divided into a filtering area at the upper part and a heating area at the lower part by the partition plate (118), an annular groove (121) and a positioning groove (122) are formed in the top surface of the partition plate (118), and a water outlet is formed in the side part of the sleeve, which is positioned above the partition plate (118);
the filter assembly (2) is arranged inside the cylinder assembly (1) and comprises a filter cylinder (201) arranged in a filter area, a filter bag (202) is arranged inside the filter cylinder (201), an annular boss (203) matched with the annular groove (121) and a limiting boss (204) matched with the limiting groove are arranged at the bottom of the filter cylinder (201), and the annular boss (203) and the limiting boss (204) can be respectively embedded into the annular groove and the limiting groove;
drive assembly (3), it is installed on the top cap, including being located outside driving motor (301) of top cap and being located inside (mixing) shaft (302) of top cap, install first permanent magnet (303) on the output shaft of driving motor (301), be fixed with supporting seat (304) on the inside roof of top cap, install second permanent magnet (306) through first bearing (305) in supporting seat (304), fixed mounting has (mixing) shaft (302) on second permanent magnet (306), is provided with spiral scraper (307) on (mixing) shaft (302), setting up of filter bag (202) is stretched into in (mixing) shaft (302) and spiral scraper (307).
2. The full-automatic small sludge dewatering dryer according to claim 1, wherein a second bearing (308) is further arranged inside the barrel assembly (1), an inner ring of the second bearing (308) is sleeved on the stirring shaft (302), and an outer ring of the second bearing (308) is connected to the inner wall of the top cover through a support rod (309).
3. The full-automatic small sludge dewatering dryer according to claim 1 or 2, wherein a microwave generator (119) is arranged in the heating zone, a heat dissipation grid (120) is arranged on the inner wall of the heating zone, and the sleeve is made of stainless steel material.
4. The full-automatic small sludge dewatering dryer according to claim 1 or 2, wherein a top cover flange (103) is arranged on the periphery of the bottom of the top cover, a sleeve flange (104) is arranged on the periphery of the top of the sleeve, the top cover flange (103) and the sleeve flange (104) are fixedly connected through an eyebolt (105), and a sealing ring is arranged between the top cover flange (103) and the sleeve flange (104).
5. The fully automatic small sludge dewatering and drying machine as claimed in claim 1 or 2, wherein the top of the filter cylinder (201) is open, and a plurality of water permeable holes are opened on the side wall and the bottom plate of the filter cylinder (201).
6. The full-automatic small sludge dewatering dryer according to claim 1 or 2, characterized in that a pressure gauge (108), an exhaust valve (109), a gas-liquid separation valve (110), a temperature sensor (111) and a sludge inlet pipe (112) are further connected to the interface (107) of the top cover, the sludge inlet pipe (112) is connected to a high-pressure sludge pump (113), a check valve (114) and a manual valve (115) are arranged on the sludge inlet pipe (112), a water outlet is connected to a water outlet pipe (116), and an electromagnetic valve (117) is arranged on the water outlet pipe (116).
7. The dehydration method of the full-automatic small-sized sludge dehydration dryer according to claim 1, characterized by comprising the following steps:
step 1), opening a manual valve (115) and an electromagnetic valve (117), pumping sludge into a filter bag (202), and separating solid from liquid by the filter bag (202) under the action of pressure;
step 2) observing the pressure gauge (108), closing the electromagnetic valve (117) and starting the driving motor (301) when the reading of the pressure gauge (108) reaches a set value;
step 3) observing a pressure gauge (108), stopping introducing sludge when the reading of the pressure gauge (108) reaches a set value, closing a high-pressure sludge pump (113), closing a manual valve (115), and keeping a driving motor (301) open all the time;
step 4) observing a pressure gauge (108), starting a microwave generator (119) when the reading of the pressure gauge (108) is stable at a set value, heating sludge in a filter cylinder (201) once, starting a driving motor (301) every other period of time during the heating period of the microwave generator (119), continuously operating for a period of time each time, closing the microwave generator (119) to stop heating after the period of time is continued, starting the microwave generator (119) again when the reading of the pressure gauge (108) is reduced to the set value, heating sludge in the filter cylinder (201) for the second time, controlling the temperature in the cylinder between set value ranges after a period of time, and closing the microwave generator (119);
step 5) observing a pressure gauge (108), when the pressure in the cylinder is higher than a set value, opening an exhaust valve (109) and a gas-liquid separation valve (110), closing the exhaust valve (109) and the gas-liquid separation valve (110) after the pressure in the cylinder is reduced to the set value, and closing a driving motor (301) and a microwave generator (119) when the reading of the pressure gauge (108) is 0 Mpa;
step 6), opening the top cover, cooling the filter drum to room temperature, taking out the filter bag (202) and the filter drum (201) in sequence, pouring out the dried sludge in the filter bag (202), and finally performing centralized treatment;
and 7) washing and airing the filter cartridge (201), cleaning sludge attached to the surface of the spiral scraper (307), placing the filter cartridge (201) into the sleeve, enabling the annular boss (203) to be attached to the annular groove (121), rotating the filter cartridge (201) to enable the limiting boss (204) at the bottom of the filter cartridge (201) to be embedded into the limiting groove, naturally placing the filter bag (202) into the filter cartridge (201), covering a top cover, and waiting for the next dehydration treatment of the sludge.
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| CN202111001294.6A CN113683283A (en) | 2021-08-30 | 2021-08-30 | Full-automatic small sludge dewatering dryer and dewatering method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111001294.6A CN113683283A (en) | 2021-08-30 | 2021-08-30 | Full-automatic small sludge dewatering dryer and dewatering method thereof |
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| CN113683283A true CN113683283A (en) | 2021-11-23 |
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Application publication date: 20211123 |