CN115043568B - Sludge dewatering equipment for industrial sewage treatment - Google Patents
Sludge dewatering equipment for industrial sewage treatment Download PDFInfo
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- CN115043568B CN115043568B CN202210983884.1A CN202210983884A CN115043568B CN 115043568 B CN115043568 B CN 115043568B CN 202210983884 A CN202210983884 A CN 202210983884A CN 115043568 B CN115043568 B CN 115043568B
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- pressing
- scraper
- filter
- driving rod
- sludge
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- 239000010802 sludge Substances 0.000 title claims abstract description 89
- 239000010865 sewage Substances 0.000 title claims abstract description 28
- 238000005056 compaction Methods 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 230000000712 assembly Effects 0.000 claims abstract description 12
- 238000000429 assembly Methods 0.000 claims abstract description 12
- 239000004744 fabric Substances 0.000 claims description 23
- 238000007790 scraping Methods 0.000 claims description 14
- 230000005484 gravity Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 238000004062 sedimentation Methods 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 230000009471 action Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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
- C02F11/123—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using belt or band filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (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)
- Treatment Of Sludge (AREA)
- Filtration Of Liquid (AREA)
Abstract
The application relates to the field of sludge dewatering equipment, in particular to sludge dewatering equipment for industrial sewage treatment. Including last filter-pressing area, lower filter-pressing area and pre-compaction mechanism, go up filter-pressing area and lower filter-pressing area rotationally set up, pre-compaction mechanism includes a plurality of pre-compaction subassemblies, and every pre-compaction subassembly includes two rotationally connected pre-compaction boards, is close to each other between every two pre-compaction subassemblies, and the space that defines between every pre-compaction subassembly is called first pre-compaction chamber, and the space that defines between every two adjacent pre-compaction subassemblies is called second pre-compaction chamber. According to the sludge dewatering equipment for industrial sewage treatment, the plurality of pre-pressing assemblies are arranged, the first pre-pressing cavity is defined between each pre-pressing assembly, the second pre-pressing cavity is defined between every two adjacent pre-pressing assemblies, and the first pre-pressing cavity and the second pre-pressing cavity are used for alternately carrying out filter pressing on sludge, so that uninterrupted continuous pretreatment on the sludge is realized, and the water content of the pretreated sludge is reduced.
Description
Technical Field
The application relates to the field of sludge dewatering equipment, in particular to sludge dewatering equipment for industrial sewage treatment.
Background
In recent years, with the high-speed development of industrial economy in China, various areas face the problems of water quality pollution and sewage treatment with different degrees, and a large amount of sludge can be precipitated after sewage treatment. The sludge treatment task in China is hard and heavy, and the filtering and separating technology is very important for sewage and sludge treatment. As an important treatment apparatus in this field, a filter press is mainly classified into four types, i.e., a belt filter press, a plate-and-frame filter press, a membrane filter press and a high-pressure sludge filter press, and a sludge belt filter press apparatus is a very important apparatus structure for treating a sludge with water to obtain a drier cake, however, it has been found in practical use that when the water content of the treated sludge is high, or when the sludge flow rate is increased, the treatment efficiency and quality are lowered.
The patent application document 202110234868.8 discloses a sludge belt filter pressing device and a working method thereof, namely, through repeated clamping actions of clamping plates of a pre-pressing assembly, clamping actions can be carried out on water-bearing sludge flowing through the device, and then the water-bearing sludge flowing through the clamping plates can discharge water at a faster speed under the action of the clamping actions and along filter cloth below. The mode utilizes the pre-compaction subassembly to carry out the mode advance preliminary treatment of pre-compaction to mud to reduce the water content of mud, but this scheme carries out the pre-compaction to mud, draws close the grip block and opens the grip block and go on alone, and such mode makes the efficiency when handling slow down, when mud volume is big, can cause to handle untimely, influences the dehydration progress even.
Disclosure of Invention
The application provides sludge dewatering equipment for industrial sewage treatment, which aims to solve the problems that when the existing dewatering equipment is used for prepressing sludge, the clamping plates are closed and opened independently, so that the efficiency in treatment is reduced, and when the sludge amount is large, the treatment is not timely and even the dewatering progress is influenced.
The application relates to sludge dewatering equipment for industrial sewage treatment, which adopts the following technical scheme: the utility model provides an industrial sewage treatment is with mud dewatering equipment, including last filter-pressing area, lower filter-pressing area and pre-pressing mechanism, go up filter-pressing area and lower filter-pressing area rotationally set up, set gradually gravity sedimentation area along lower filter-pressing area roll direction, the pre-pressing area, filter-pressing area and dry mud export, pre-pressing mechanism installs in the pre-compaction area, pre-pressing mechanism includes a plurality of pre-compaction subassemblies, every pre-compaction subassembly includes two rotatable connected pre-compaction boards, be close to each other between every two pre-compaction subassemblies, the space that will be limited between every pre-compaction subassembly is called first pre-compaction chamber, the space that will be limited between every two adjacent pre-compaction subassemblies is called second pre-compaction chamber, first pre-compaction chamber and second pre-compaction chamber are configured to go on the filter-pressing of mud in turn.
Further, the pre-compaction board includes two filter fabrics and a connecting plate, and two filter fabrics link to each other through the connecting plate, and the pre-compaction board sets up to inside hollow structure, and the pre-compaction board lower extreme is provided with the apopore, and first pre-compaction chamber and second pre-compaction chamber are sealed through the closing plate.
Further, the dewatering equipment further comprises a pre-pressing shell and a mud scraping mechanism, wherein the pre-pressing shell is provided with a first driving rod chute and a second driving rod chute, and the first driving rod chute and the second driving rod chute are obliquely arranged; the mud scraping mechanism comprises a first scraper driving rod, a second scraper driving rod, a first scraper and a second scraper; one end of the first scraper driving rod and one end of the second scraper driving rod are arranged on the filter cloth in a vertical sliding way, the other end of the first scraper driving rod is arranged on the first driving rod chute in a sliding way, and the other end of the second scraper driving rod is arranged on the second driving rod chute in a sliding way; the first scraper and the second scraper are respectively and slidably arranged on the two filter fabrics, the first scraper drives the rod to be rotatably connected with the first scraper, and the second scraper drives the rod to be rotatably connected with the second scraper; the first scraper of initial state drives pole one end and is in the below in first drive pole spout, and first scraper drives the pole other end and is in the below in the pre-compaction board, and then makes first scraper be in the below, and second scraper drives pole one end and is in the top in the second drive pole spout, and the second scraper drives the pole other end and is in the top in the pre-compaction board, and then makes the second scraper be in the below.
Further, each pre-pressing assembly further comprises two racks, two gears and two rotating shafts; the two racks can synchronously move up and down, the two racks are opposite and are reversely arranged, and each rack is meshed with one gear so that the rotation directions of the two gears are opposite; every two gears are opposite and coaxial, every gear is connected with the rotating shaft through the torsional spring, the rotating shafts which are oppositely arranged are rotatably connected, a sleeve is arranged on each pre-pressing plate, and each sleeve is sleeved on the corresponding rotating shaft, so that every two pre-pressing plates are rotatably connected.
Further, the pre-compaction mechanism still includes pre-compaction motor, cam, actuating frame and two movable rods, and the pre-compaction motor is used for driving the cam rotation, and the actuating frame links to each other with the cam, makes the actuating frame reciprocate, and the movable rod is connected respectively at the actuating frame both ends, and a plurality of prepressing assembly corresponds a plurality of racks that set up and all set up in the movable rod along vertical direction.
Further, the dewatering equipment further comprises a shell, an upper filter pressing motor, a plurality of rollers and a lower filter pressing motor, wherein a sludge inlet is formed in the shell, the rollers are arranged on the upper filter pressing belt and the lower filter pressing belt, the upper filter pressing motor is used for driving the upper filter pressing belt to rotate, and the lower filter pressing motor is used for driving the lower filter pressing belt to rotate.
The beneficial effects of the application are as follows:
1. according to the sludge dewatering equipment for industrial sewage treatment, the plurality of pre-pressing assemblies are arranged, the first pre-pressing cavity is defined between each pre-pressing assembly, the second pre-pressing cavity is defined between every two adjacent pre-pressing assemblies, so that the first pre-pressing cavity and the second pre-pressing cavity are used for alternately carrying out filter pressing on sludge, continuous pretreatment on the sludge is realized, the water content of the pretreated sludge is reduced, and the water content of a finally obtained mud cake is also reduced.
2. Through setting up mud scraping mechanism, behind first pre-compaction chamber and second pre-compaction chamber to mud filter-pressing, clear up the filter cloth after the filter-pressing, simple structure does not need independent operation, guarantees the efficiency of filter-pressing and has still cleared up the filter cloth.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing the overall structure of an embodiment of a sludge dewatering apparatus for industrial sewage treatment according to the present application;
FIG. 2 is a schematic view showing a semi-cutaway view of the overall structure of an embodiment of a sludge dewatering apparatus for industrial sewage treatment of the present application;
FIG. 3 is a schematic view of a pre-pressing apparatus of an embodiment of a sludge dewatering apparatus for industrial sewage treatment according to the present application;
FIG. 4 is a schematic view showing an internal structure of a pre-pressing device of an embodiment of a sludge dewatering apparatus for industrial sewage treatment according to the present application;
FIG. 5 is a schematic view showing a partial structure of a pre-pressing device of an embodiment of a sludge dewatering apparatus for industrial sewage treatment according to the present application;
FIG. 6 is a schematic side view of a pre-pressing apparatus of an embodiment of a sludge dewatering device for industrial sewage treatment according to the present application;
FIG. 7 is a schematic view showing a first operation state of a pre-pressing device of an embodiment of a sludge dewatering apparatus for industrial sewage treatment according to the present application;
fig. 8 is a schematic view showing a second operation state of the pre-pressing device of the sludge dewatering apparatus for industrial sewage treatment according to the embodiment of the present application.
In the figure: 100. a sludge inlet; 110. a baffle; 120. a filter pressing belt is arranged; 130. a lower press filtration belt; 140. a water collection tank; 150. a filter pressing motor is arranged; 160. a lower filter pressing motor; 170. a roller; 200. pre-pressing a motor; 210. a cam; 220. a drive rack; 230. a moving rod; 231. a rack; 240. a gear; 241. a torsion spring; 242. a rotating shaft; 250. a pre-pressing plate; 251. a filter cloth; 252. a first pre-pressing cavity; 253. a second pre-pressing cavity; 260. a sealing plate; 270. the first scraper drives the rod; 271. the second scraper drives the rod; 280. a first scraper; 281. a second scraper; 300. pre-pressing the shell; 301. a first drive rod chute; 302. a second driving rod chute; 400. a gravity settling zone; 420. a filter pressing area; 430. and a dry sludge outlet.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
An example of a sludge dewatering apparatus for industrial sewage treatment according to the present application is shown in fig. 1 to 8.
The utility model provides a sludge dewatering equipment for industrial sewage treatment, including last filter-pressing area 120, lower filter-pressing area 130 and pre-pressing mechanism, go up filter-pressing area 120 and lower filter-pressing area 130 rotationally set up, gravity sedimentation area 400 has been set gradually along lower filter-pressing area 130 roll direction, the pre-pressing area 420 and dry sludge outlet 430, pre-pressing mechanism installs in the pre-pressing area, pre-pressing mechanism includes a plurality of pre-pressing subassemblies, every pre-pressing subassembly includes two rotatable joinder pre-pressing plates 250, be close to each other between every two pre-pressing subassemblies, the space that will be limited between every pre-pressing subassembly is called first pre-pressing chamber 252, the space that will be limited between every two adjacent pre-pressing subassemblies is called second pre-pressing chamber 253, first pre-pressing chamber 252 and second pre-pressing chamber 253 are configured to the filter-pressing of mud and go on alternately. So as to realize uninterrupted continuous pretreatment of the sludge, the water content of the pretreated sludge is reduced, and the water content of the finally obtained sludge cake is also reduced.
In another embodiment, the pre-pressing plate 250 includes two filter cloths 251 and a connection plate, the two filter cloths 251 are connected through the connection plate, the pre-pressing plate 250 is provided with an internal hollow structure, the lower end of the pre-pressing plate 250 is provided with a water outlet, and the first pre-pressing cavity 252 and the second pre-pressing cavity 253 are sealed through the sealing plate 260. In another embodiment, as shown in fig. 8, the scraping surface of the first scraper 280, that is, the upper end surface is set to be an inclined surface, and the lower end is set to be a planar structure, so that the two first scrapers 280 can form a sealing surface when approaching, and a certain sealing effect is provided for the upper end of the second pre-pressing cavity 253.
In another embodiment, the dewatering device further comprises a pre-pressing shell and a mud scraping mechanism, wherein the pre-pressing shell is provided with a first driving rod chute 301 and a second driving rod chute 302, and the first driving rod chute 301 and the second driving rod chute 302 are obliquely arranged; the slope of the first driving rod chute 301 and the second driving rod chute 302 can change the speed of the first scraper 280 and the second scraper 281 when scraping and retracting, so that the first scraper 280 or the second scraper 281 can complete the mud scraping when the first filter pressing cavity or the second filter pressing cavity is opened.
The mud scraping mechanism comprises a first scraper driving rod 270, a second scraper driving rod 271, a first scraper 280 and a second scraper 281; one end of a first scraper driving rod 270 and one end of a second scraper driving rod 271 are arranged on the filter cloth 251 in a vertically sliding way, the other end of the first scraper driving rod 270 is arranged on a first driving rod sliding chute 301 in a sliding way, and the other end of the second scraper driving rod 271 is arranged on a second driving rod sliding chute 302 in a sliding way; the first scraper 280 and the second scraper 281 are respectively and slidably arranged on the two filter cloths 251, the first scraper driving rod 270 is rotatably connected with the first scraper 280, and the second scraper driving rod 271 is rotatably connected with the second scraper 281; in the initial state, one end of the first scraper driving rod 270 is located below in the first driving rod chute 301, the other end of the first scraper driving rod 270 is located below in the pre-pressing plate 250, so that the first scraper 280 is located below, one end of the second scraper driving rod 271 is located above in the second driving rod chute 302, and the other end of the second scraper driving rod 271 is located above in the pre-pressing plate 250, so that the second scraper 281 is located below. After the first pre-pressing cavity 252 and the second pre-pressing cavity 253 filter-press the sludge, the filter cloth 251 after filter pressing is cleaned, so that the efficiency of filter pressing is ensured, and the filter cloth 251 is cleaned.
In another embodiment, each pre-compression assembly further comprises two racks 231, two gears 240, two spindles 242; the two racks 231 can move up and down synchronously, the two racks 231 are opposite and are reversely arranged, and each rack 231 is meshed with one gear 240 so that the rotation directions of the two gears 240 are opposite; every two gears 240 are opposite and coaxial, each gear 240 is connected with a rotating shaft 242 through a torsion spring 241, the two oppositely arranged rotating shafts 242 are rotatably connected, a sleeve is arranged on each pre-pressing plate 250, and each sleeve is sleeved on a corresponding rotating shaft 242, so that every two pre-pressing plates 250 are rotatably connected.
In another embodiment, the pre-pressing mechanism further includes a pre-pressing motor 200, a cam 210, a driving frame 220 and two moving rods 230, the pre-pressing motor 200 is used for driving the cam 210 to rotate, the driving frame 220 is connected with the cam 210 to enable the driving frame 220 to move up and down, two ends of the driving frame 220 are respectively connected with the moving rods 230, and a plurality of racks 231 correspondingly arranged in the pre-pressing assemblies are all arranged on the moving rods 230 along the vertical direction. The pre-pressing motor 200 is started, and the pre-pressing motor 200 drives the cam 210 to rotate, and then drives the driving frame 220 to move up and down, and further drives the two moving rods 230 to move up and down, and the two moving rods 230 move up and down to drive the rack 231 arranged on the moving rods to move up and down.
In another embodiment, the dewatering apparatus further includes a housing, an upper filter press motor 150, a plurality of rollers 170, and a lower filter press motor 160, where the housing is provided with a sludge inlet 100, the plurality of rollers 170 are mounted on the upper filter press belt 120 and the lower filter press belt 130, the upper filter press motor 150 is used to drive the upper filter press belt 120 to rotate, and the lower filter press motor 160 is used to drive the lower filter press belt 130 to rotate.
The working process comprises the following steps: as shown in fig. 1 and 2, a sludge inlet 100 for allowing sludge to enter is formed in a shell of the sewage equipment, baffles 110 are arranged at two ends of the shell, and an upper press filter motor 150 drives a roller 170 to rotate, so that an upper press filter belt 120 is driven to roll. The lower press motor 160 drives the rollers 170 to rotate, and further drives the lower press belt 130 to roll. The sludge flows downwards from the sludge inlet 100 to the lower filter-pressing belt 130, and a gravity settling zone 400, a pre-pressing zone, a filter-pressing zone 420 and a dry sludge outlet 430 are sequentially arranged along the rolling direction of the lower filter-pressing belt 130.
The overlapping portions of the upper press belt 120 and the lower press belt 130 define a press nip 420. The sludge inlet 100 is communicated with the gravity sedimentation zone 400, and the sludge flows downwards to be sedimentated in the gravity sedimentation zone 400 after entering from the sludge inlet 100, and the sludge water content is different, and the time for sedimentation of the sludge in the gravity sedimentation zone 400 is the same, so that the water content of the sludge entering into the filter-pressing zone 420 for filter-pressing is different, the water content of the final sludge cake is difficult to meet the requirement, and the requirement for sludge with large water content cannot be met. The sludge settled in the gravity settling zone 400 will thus be brought to the pre-compaction zone.
As shown in fig. 3, a motor shaft of the pre-pressing motor 200 is connected with a cam 210, the cam 210 is connected with a driving frame 220, so that after the pre-pressing motor 200 is started, the driving frame 220 is moved up and down through the cam 210, two ends of the driving frame 220 are respectively connected with moving rods 230, a plurality of racks 231 are arranged on each moving rod 230, the racks 231 are arranged in the vertical direction, the moving rods 230 drive the racks 231 to move up and down, each rack 231 is meshed with one gear 240, the racks 231 move up and down to drive the gears 240 to rotate, the racks 231 arranged on each moving rod 230 are arranged opposite to the racks 231 arranged on the other moving rod 230, and the two racks 231 arranged opposite to each other are reversed, so that the rotation directions of the two gears 240 are opposite.
As shown in fig. 4, each of the two gears 240 is disposed opposite to each other, and the two gears 240 disposed opposite to each other are concentric, each gear 240 is connected to the rotary shaft 242 by a torsion spring 241, the two oppositely disposed rotary shafts 242 are rotatably connected, the pre-compression plate 250 includes two filter cloths 251 and a connection plate, the two filter cloths 251 are connected by the connection plate, a sleeve is disposed on each connection plate, and each sleeve is sleeved on a corresponding rotary shaft 242, that is, each pre-compression plate 250 is rotatably connected.
The two rotatably connected pre-pressing plates 250 form a pre-pressing assembly, the pre-pressing assemblies are adjacent to each other, the space defined between each pre-pressing assembly is called a first pre-pressing cavity 252, and the space defined between each two adjacent pre-pressing assemblies is called a second pre-pressing cavity 253, so that when the pre-pressing motor 200 is started, the clamping of the sludge between each pre-pressing assembly and the clamping of the sludge between each two adjacent pre-pressing assemblies are alternately performed. Namely, the press filtration of the sludge by the first pre-pressing chamber 252 and the second pre-pressing chamber 253 is alternately performed. When the sludge is pretreated, the clamping process is always present. So as to realize uninterrupted continuous pretreatment of the sludge, the water content of the pretreated sludge is reduced, and the water content of the finally obtained sludge cake is also reduced.
The sealing plates 260 are arranged on each pre-pressing plate 250, the sealing plates 260 can seal the rolling direction of the lower press-filtering belt 130 so as to ensure that sludge is not extruded when the sludge is extruded, the pre-pressing plates 250 are of hollow structures, water outlet holes are formed in the lower ends of the pre-pressing plates 250, the surface for extruding the sludge is filter cloth 251, thus sewage can be extruded into the cavity inside the pre-pressing plates 250, then flows out through the water outlet holes at the lower ends of the pre-pressing plates 250 and the filter cloth 251, and the sewage can flow outwards from three directions, so that the pre-pressing efficiency of the sludge is further ensured.
As shown in fig. 3, the pre-pressing mechanism is installed in a pre-pressing housing 300, on which a first driving lever chute 301 and a second driving lever chute 302 are provided. The first driving rod chute 301 and the second driving rod chute 302 are obliquely arranged; one end of the first scraper driving rod 270 and one end of the second scraper driving rod 271 are installed on the pre-pressing plate 250 in a vertically sliding manner, the other end of the first scraper driving rod 270 is installed on the first driving rod sliding chute 301 in a sliding manner, and the other end of the second scraper driving rod 271 is installed on the second driving rod sliding chute 302 in a sliding manner. The first scraper 280 and the second scraper 281 are slidably mounted on the two filter cloths 251, and are used for scraping residual sludge by the filter cloths 251, the first scraper driving rod 270 is rotatably connected with the first scraper 280, and the second scraper driving rod 271 is rotatably connected with the second scraper 281.
As shown in fig. 7, in the initial state of the present application, one end of the first scraper driving rod 270 is located below in the first driving rod chute 301, the other end of the first scraper driving rod 270 is located below in the pre-pressing plate 250, so that the first scraper 280 is located below, that is, the first scraper 280 has a tendency to move upwards, one end of the second scraper driving rod 271 is located above in the second driving rod chute 302, and the other end of the second scraper driving rod 271 is located above in the pre-pressing plate 250, so that the second scraper 281 is located below, that is, the second scraper 281 has a tendency to move downwards.
When the pre-pressing plate 250 is in an initial state and the pre-pressing motor 200 is started to perform alternate press filtration on sludge in the first pre-pressing cavity 252 and the second pre-pressing cavity 253, namely, when the first pre-pressing cavity 252 is pressed inwards, the second scraper driving rod 271 drives the second scraper 281 to be positioned above under the limitation of the second driving rod chute 302, at this time, the second pre-pressing cavity 253 is in an open state, and the first scraper driving rod 270 drives the first scraper 280 to be positioned below under the limitation of the first driving rod chute 301.
When the pre-pressing plate 250 rotates to open the first pre-pressing cavity 252, the second pre-pressing cavity 253 contracts to enable the second scraper driving rod 271 to drive the second scraper 281 to scrape down the sticky sludge on the filter cloth 251 under the limitation of the second driving rod chute 302, the first pre-pressing cavity 252 returns to the high position to prepare for next scraping of the sticky sludge when contracting again, and likewise, when the first pre-pressing cavity 252 is opened and the second pre-pressing cavity 253 is in filter pressing, the first scraper 280 scrapes the sludge on the first pre-pressing cavity 253, and the filter cloth 251 after filter pressing is cleaned while the alternate filter pressing is performed, so that the efficiency of filter pressing is ensured, and the filter cloth 251 is cleaned.
The sludge after pretreatment and dehydration enters the filter pressing zone 420 under the action of the lower filter pressing belt 130, the water in the sludge is extruded out through the filter pressing zone 420, finally flows out from the dry sludge outlet 430, the extruded water enters the water collecting tank 140 for collection, and a sludge collecting device can be placed at the tail of the device to collect the dry sludge.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the application.
Claims (3)
1. The utility model provides a sludge dewatering equipment for industrial sewage treatment which characterized in that: the device comprises an upper filter pressing belt, a lower filter pressing belt and a pre-pressing mechanism, wherein the upper filter pressing belt and the lower filter pressing belt are rotatably arranged, a gravity sedimentation area, a pre-pressing area, a filter pressing area and a dry sludge outlet are sequentially arranged along the rolling direction of the lower filter pressing belt, the pre-pressing mechanism is arranged in the pre-pressing area, the pre-pressing mechanism comprises a plurality of pre-pressing assemblies, each pre-pressing assembly comprises two rotatably connected pre-pressing plates, every two pre-pressing assemblies are mutually close to each other, a space defined between each pre-pressing assembly is called a first pre-pressing cavity, each first pre-pressing cavity is respectively positioned between the two pre-pressing plates of each pre-pressing assembly, a space defined between every two adjacent pre-pressing assemblies is called a second pre-pressing cavity, and the first pre-pressing cavity and the second pre-pressing cavity are configured to alternately perform the filter pressing on sludge; the pre-pressing plate comprises two filter fabrics and a connecting plate, the two filter fabrics are connected through the connecting plate, the pre-pressing plate is arranged into an internal hollow structure, the lower end of the pre-pressing plate is provided with a water outlet hole, and the first pre-pressing cavity and the second pre-pressing cavity are sealed through a sealing plate;
the dewatering equipment further comprises a pre-pressing shell and a mud scraping mechanism, wherein the pre-pressing shell is provided with a first driving rod chute and a second driving rod chute, and the first driving rod chute and the second driving rod chute are obliquely arranged; the mud scraping mechanism comprises a first scraper driving rod, a second scraper driving rod, a first scraper and a second scraper; one end of the first scraper driving rod and one end of the second scraper driving rod are arranged on the filter cloth in a vertical sliding way, the other end of the first scraper driving rod is arranged on the first driving rod chute in a sliding way, and the other end of the second scraper driving rod is arranged on the second driving rod chute in a sliding way; the first scraper and the second scraper are respectively and slidably arranged on the two filter fabrics, the first scraper drives the rod to be rotatably connected with the first scraper, and the second scraper drives the rod to be rotatably connected with the second scraper; in the initial state, one end of a first scraper driving rod is arranged below in a first driving rod sliding groove, the other end of the first scraper driving rod is arranged below in a pre-pressing plate, so that the first scraper is arranged below, one end of a second scraper driving rod is arranged above in a second driving rod sliding groove, the other end of the second scraper driving rod is arranged above in the pre-pressing plate, and the second scraper is arranged below;
each pre-pressing component further comprises two racks, two gears and two rotating shafts; the two racks can synchronously move up and down, the two racks are opposite and are reversely arranged, and each rack is meshed with one gear so that the rotation directions of the two gears are opposite; every two gears are opposite and coaxial, each gear is connected with the rotating shaft through a torsion spring, the two oppositely arranged rotating shafts are rotatably connected, a sleeve is arranged on each pre-pressing plate, and each sleeve is sleeved on a corresponding rotating shaft, so that every two pre-pressing plates are rotatably connected; when first pre-compaction chamber inwards extrudees, the second scraper drives the pole and drives the second scraper under the restriction of second drive pole spout and be in the top, second pre-compaction chamber is open state this moment, first scraper drives the pole and drives first scraper under first drive pole spout restriction and be in the below, when the pre-compaction board rotates and makes first pre-compaction chamber open, second pre-compaction chamber shrink makes the second scraper drive the pole and drives the second scraper under the restriction of second drive pole spout along filter cloth downwardly moving with the mud of gluing on the filter cloth scraping down, get back to the eminence when first pre-compaction chamber shrink again and prepare next mud scraping, open at first pre-compaction chamber, when second pre-compaction chamber, first scraper will strike off the mud on it, clear up the filter cloth after the filter-pressing when carrying out the alternative filter-pressing.
2. The sludge dewatering equipment for industrial sewage treatment according to claim 1, wherein: the prepressing mechanism further comprises a prepressing motor, a cam, a driving frame and two moving rods, wherein the prepressing motor is used for driving the cam to rotate, the driving frame is connected with the cam to enable the driving frame to move up and down, the two ends of the driving frame are respectively connected with the moving rods, and a plurality of racks which are correspondingly arranged by a plurality of prepressing assemblies are arranged on the moving rods along the vertical direction.
3. The sludge dewatering equipment for industrial sewage treatment according to claim 1, wherein: the dewatering equipment further comprises a shell, an upper filter pressing motor, a plurality of rollers and a lower filter pressing motor, wherein a sludge inlet is formed in the shell, the rollers are arranged on the upper filter pressing belt and the lower filter pressing belt, the upper filter pressing motor is used for driving the upper filter pressing belt to rotate, and the lower filter pressing motor is used for driving the lower filter pressing belt to rotate.
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| CN202210983884.1A CN115043568B (en) | 2022-08-17 | 2022-08-17 | Sludge dewatering equipment for industrial sewage treatment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117510021B (en) * | 2023-12-18 | 2024-05-10 | 苏州和青环保科技有限公司 | Sludge dewatering equipment |
| CN118307173B (en) * | 2024-06-07 | 2024-10-11 | 江苏省城市规划设计研究院有限公司 | Sludge recycling device for sewage treatment |
| CN118812121B (en) * | 2024-08-01 | 2026-01-09 | 江苏复祯环保科技有限公司 | A sludge treatment device |
| CN119569297B (en) * | 2024-12-19 | 2025-12-26 | 中苏生态环境科技(苏州)有限公司 | A sludge drying device and method for environmental pollution control |
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| CN102863135A (en) * | 2012-08-22 | 2013-01-09 | 浙江欧可美科技股份有限公司 | Device and method for compressing sludge at intervals |
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| CN112777908A (en) * | 2021-03-03 | 2021-05-11 | 石家庄学院 | Sludge belt type filter pressing device and working method thereof |
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| CN102863135A (en) * | 2012-08-22 | 2013-01-09 | 浙江欧可美科技股份有限公司 | Device and method for compressing sludge at intervals |
| CN108929015A (en) * | 2017-05-26 | 2018-12-04 | 成都源云机械有限公司 | A kind of sludge dewatering treatment device |
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