CN115043568A - Sludge dewatering equipment for industrial sewage treatment - Google Patents
Sludge dewatering equipment for industrial sewage treatment Download PDFInfo
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- CN115043568A CN115043568A CN202210983884.1A CN202210983884A CN115043568A CN 115043568 A CN115043568 A CN 115043568A CN 202210983884 A CN202210983884 A CN 202210983884A CN 115043568 A CN115043568 A CN 115043568A
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- prepressing
- scraper
- driving rod
- sludge
- pressing
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- 239000010802 sludge Substances 0.000 title claims abstract description 84
- 239000010865 sewage Substances 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 239000004744 fabric Substances 0.000 claims description 15
- 238000007790 scraping Methods 0.000 claims description 12
- 230000005484 gravity Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 238000005056 compaction Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 5
- 230000018044 dehydration Effects 0.000 claims description 2
- 238000006297 dehydration reaction Methods 0.000 claims description 2
- 230000000712 assembly Effects 0.000 abstract description 22
- 238000000429 assembly Methods 0.000 abstract description 22
- 230000009471 action Effects 0.000 description 4
- 238000011085 pressure filtration Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001914 filtration 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
- 238000002203 pretreatment Methods 0.000 description 1
- 238000003911 water pollution Methods 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
- C02F11/123—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using belt or band filters
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- 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
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- 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 invention relates to the field of sludge dewatering equipment, in particular to sludge dewatering equipment for industrial sewage treatment. The prepressing mechanism comprises a plurality of prepressing assemblies, each prepressing assembly comprises two prepressing plates which are rotatably connected, every two prepressing assemblies are close to each other, a space defined between every two prepressing assemblies is called a first prepressing cavity, and a space defined between every two adjacent prepressing assemblies is called a second prepressing cavity. 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 every two pre-pressing assemblies, 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 alternately perform filter pressing on sludge, uninterrupted continuous pretreatment on the sludge is realized, and the water content of the pretreated sludge is reduced.
Description
Technical Field
The invention relates to the field of sludge dewatering equipment, in particular to sludge dewatering equipment for industrial sewage treatment.
Background
In recent years, with the rapid development of industrial economy in China, various regions face different degrees of water pollution and sewage treatment problems, and a large amount of sludge can be precipitated after sewage is treated. The sludge treatment task in China is difficult and heavy, and the filtering and separating technology is very important for the treatment of sewage and sludge. The filter press is an important treatment device in the field, and is mainly divided into four types, namely 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 device is a very important device structure for treating sludge with water to obtain a relatively dry sludge cake.
The 202110234868.8 patent application discloses a sludge belt type filter pressing device and a working method thereof, namely, the device can clamp the flowing water-carrying sludge through repeated clamping actions of the clamping plates of the pre-pressing assembly, so that the water-carrying sludge flowing between the clamping plates can be discharged at a higher speed under the action of the clamping actions and is discharged along the lower filter cloth. This mode utilizes the pre-compaction subassembly to carry out the advanced pre-treatment of mode of pre-compaction to mud to reduce the water content of mud, nevertheless this scheme when carrying out the pre-compaction to mud, it is alone going on to draw close the grip block and open the grip block, and such mode makes the efficiency when handling slow, and when the sludge volume is big, can cause the processing untimely, influences the dehydration progress even.
Disclosure of Invention
The invention 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 plate is closed and the clamping plate is opened independently, so that the treatment efficiency is slowed down, and when the sludge amount is large, the treatment is not timely, and even the dewatering progress is influenced.
The invention relates to a sludge dewatering device for industrial sewage treatment, which adopts the following technical scheme: the sludge dewatering equipment for industrial sewage treatment comprises an upper filter press belt, a lower filter press belt and a prepressing mechanism, wherein the upper filter press belt and the lower filter press belt are rotatably arranged, a gravity settling area, a prepressing area, a filter press area and a dry sludge outlet are sequentially arranged along the rolling direction of the lower filter press belt, the prepressing mechanism is installed in the prepressing area and comprises a plurality of prepressing assemblies, each prepressing assembly comprises two prepressing plates which are rotatably connected, every two prepressing assemblies are close to each other, a space defined between every two prepressing assemblies is called a first prepressing cavity, a space defined between every two adjacent prepressing assemblies is called a second prepressing cavity, and the first prepressing cavity and the second prepressing cavity are configured to alternately perform filter pressing on sludge.
Furthermore, the prepressing plate comprises two filter cloths and a connecting plate, the two filter cloths are connected through the connecting plate, the prepressing plate is of an internal hollow structure, a water outlet hole is formed in the lower end of the prepressing plate, and the first prepressing cavity and the second prepressing cavity are sealed through a sealing plate.
Furthermore, the dewatering equipment also comprises a prepressing shell and a mud scraping mechanism, wherein the prepressing 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 vertically sliding manner, the other end of the first scraper driving rod is arranged on the first driving rod sliding groove in a sliding manner, and the other end of the second scraper driving rod is arranged on the second driving rod sliding groove in a sliding manner; the first scraper and the second scraper are respectively arranged on the two filter cloths in a sliding manner, the first scraper driving rod is rotatably connected with the first scraper, and the second scraper driving rod is rotatably connected with the second scraper; in an initial state, one end of a first scraper driving rod is located below a first driving rod sliding groove, the other end of the first scraper driving rod is located below a prepressing plate, so that the first scraper is located below the prepressing plate, one end of a second scraper driving rod is located above the second driving rod sliding groove, the other end of the second scraper driving rod is located above the prepressing plate, and then the second scraper is located below the prepressing plate.
Furthermore, each pre-pressing assembly also comprises two racks, two gears and two rotating shafts; the two racks can synchronously move up and down, the two racks are oppositely and reversely arranged, and each rack is meshed with one gear so as to ensure that the rotating 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 rotating shafts which are arranged oppositely are rotatably connected, each prepressing plate is provided with a sleeve, and each sleeve is sleeved on the corresponding rotating shaft, so that every two prepressing plates are rotatably connected.
Further, prepressing mechanism still includes prepressing motor, cam, carriage and two carriage release levers, and the prepressing motor is used for driving the cam to rotate, and the carriage release lever links to each other with the cam, makes the carriage release lever reciprocate, and the carriage release lever is connected respectively at the carriage release lever both ends, and a plurality of racks that a plurality of prepressing subassemblies correspond the setting all set up in the carriage release lever along vertical direction.
Further, dewatering equipment still includes the casing, goes up filter-pressing motor, a plurality of gyro wheels and presses the filter-pressing motor down, has seted up the mud import on the casing, and a plurality of gyro wheels are installed in last filter-pressing area and filter-pressing area down, go up filter-pressing motor and are used for driving the rotation of filter-pressing area, press the filter-pressing motor and be used for driving down the rotation of filter-pressing area down.
The invention has the beneficial effects that:
1. according to the sludge dewatering equipment for industrial sewage treatment, the plurality of prepressing assemblies are arranged, the first prepressing cavity is defined between every two prepressing assemblies, the second prepressing cavity is defined between every two adjacent prepressing assemblies, so that the first prepressing cavity and the second prepressing cavity alternately perform pressure filtration on sludge, uninterrupted continuous pretreatment on the sludge is realized, the water content of the pretreated sludge is reduced, and the water content of the finally obtained sludge cake is also reduced.
2. Through setting up mud scraping mechanism, after first precompression chamber and second precompression chamber filter-press the mud, clear up the filter cloth after the filter-press, simple structure does not need independent operation, guarantees that the efficiency of filter-press has still cleared up the filter cloth.
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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view showing the overall configuration of an embodiment of a sludge dehydrating apparatus for industrial sewage treatment according to the present invention;
FIG. 2 is a schematic view of a half sectional view showing the overall structure of an embodiment of a sludge dehydrating apparatus for industrial sewage treatment of the present invention;
FIG. 3 is a schematic view of a pre-pressing device of an embodiment of the sludge dewatering apparatus for industrial sewage treatment according to the present invention;
FIG. 4 is a schematic view showing an internal structure of a pre-pressing device of an embodiment of the sludge dewatering apparatus for industrial sewage treatment according to the present invention;
FIG. 5 is a partial schematic structural view of a pre-pressing device of an embodiment of the sludge dewatering equipment for industrial sewage treatment according to the present invention;
FIG. 6 is a schematic side view of a pre-pressing device of an embodiment of the sludge dewatering equipment for industrial sewage treatment according to the present invention;
FIG. 7 is a schematic view showing a first operation state of a pre-pressing device of an embodiment of the sludge dewatering apparatus for industrial sewage treatment according to the present invention;
fig. 8 is a schematic view showing a second operation state of the pre-pressing device of the embodiment of the sludge dewatering equipment for industrial sewage treatment of the present invention.
In the figure: 100. a sludge inlet; 110. a baffle plate; 120. a filter pressing belt is arranged; 130. pressing the filter belt downwards; 140. a water collection tank; 150. a filter pressing motor is arranged; 160. a filter motor is pressed downwards; 170. a roller; 200. pre-pressing the motor; 210. a cam; 220. a driving frame; 230. a travel bar; 231. a rack; 240. a gear; 241. a torsion spring; 242. a rotating shaft; 250. pre-pressing a plate; 251. filtering cloth; 252. a first pre-compression chamber; 253. a second pre-compression chamber; 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 (5) a dry sludge outlet.
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.
An embodiment of a sludge dewatering device for industrial sewage treatment according to the present invention is shown in fig. 1 to 8.
A sludge dewatering device for industrial sewage treatment comprises an upper filter press belt 120, a lower filter press belt 130 and a prepressing mechanism, wherein the upper filter press belt 120 and the lower filter press belt 130 are rotatably arranged, a gravity settling area 400, a prepressing area, a filter pressing area 420 and a dry sludge outlet 430 are sequentially arranged along the rolling direction of the lower filter press belt 130, the prepressing mechanism is installed in the prepressing area and comprises a plurality of prepressing assemblies, each prepressing assembly comprises two prepressing plates 250 which are rotatably connected with each other, each two prepressing assemblies are close to each other, a space defined between each prepressing assembly is called a first prepressing cavity 252, a space defined between each two adjacent prepressing assemblies is called a second prepressing cavity 253, and the first prepressing cavities 252 and the second prepressing cavities 253 are configured to alternately perform filter pressing on sludge. So as to realize the uninterrupted continuous pretreatment of the sludge, the water content of the pretreated sludge is reduced, and the water content of the finally obtained mud cake is also reduced.
In another embodiment, the pre-press plate 250 includes two filter cloths 251 and a connecting plate, the two filter cloths 251 are connected through the connecting plate, the pre-press plate 250 is configured as an internal hollow structure, a water outlet hole is formed at the lower end of the pre-press plate 250, and the first pre-press cavity 252 and the second pre-press cavity 253 are sealed by a sealing plate 260. As shown in fig. 8, in another embodiment, a scraping surface of the first scraper 280, that is, an upper end surface is provided as an inclined surface, and a lower end is provided as a planar structure, so that the two first scrapers 280 can form a sealing surface when approaching, and have a certain sealing effect on the upper end of the second pre-press cavity 253.
In another embodiment, 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 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 sliding groove 301 and the second driving rod sliding groove 302 can change the speed of the first scraper 280 and the second scraper 281 during scraping and withdrawing, so that the first scraper 280 or the second scraper 281 can complete mud scraping at the moment when the first filter pressing cavity or the second filter pressing cavity is opened.
The mud scraping mechanism includes a first scraper driving lever 270, a second scraper driving lever 271, a first scraper 280, and a second scraper 281; one end of the first scraper driving rod 270 and one end of the second scraper driving rod 271 are slidably mounted on the filter cloth 251 up and down, the other end of the first scraper driving rod 270 is slidably mounted on the first driving rod chute 301, and the other end of the second scraper driving rod 271 is slidably mounted on the second driving rod chute 302; the first scraper 280 and the second scraper 281 are respectively slidably mounted 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 an initial state, one end of the first scraper driving rod 270 is located below the first driving rod sliding slot 301, the other end of the first scraper driving rod 270 is located below 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 the second driving rod sliding slot 302, the other end of the second scraper driving rod 271 is located above the pre-pressing plate 250, and the second scraper 281 is located below. After the first prepressing cavity 252 and the second prepressing cavity 253 perform pressure filtration on sludge, the filter cloth 251 after pressure filtration is cleaned, the efficiency of pressure filtration is ensured, and the filter cloth 251 is also cleaned.
In another embodiment, each pre-pressing assembly further includes two racks 231, two gears 240, and two rotating shafts 242; the two racks 231 can move up and down synchronously, the two racks 231 are opposite and opposite, 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 the rotating shaft 242 through a torsion spring 241, the two rotating shafts 242 which are opposite to each other are rotatably connected, each prepressing plate 250 is provided with a sleeve, and each sleeve is sleeved on the corresponding rotating shaft 242, so that every two prepressing 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 on the plurality of pre-pressing components are arranged on the moving rods 230 along the vertical direction. When the pre-pressing motor 200 is started, the pre-pressing motor 200 drives the cam 210 to rotate, and further drives the driving rack 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 thereon to move up and down.
In another embodiment, the dewatering device further comprises a housing, an upper filter-pressing motor 150, a plurality of rollers 170 and a lower filter-pressing motor 160, the housing is provided with a sludge inlet 100, the rollers 170 are mounted on the upper filter-pressing belt 120 and the lower filter-pressing belt 130, the upper filter-pressing motor 150 is used for driving the upper filter-pressing belt 120 to rotate, and the lower filter-pressing motor 160 is used for driving the lower filter-pressing belt 130 to rotate.
The working process is as follows: as shown in fig. 1 and 2, a casing of the sewage treatment plant is provided with a sludge inlet 100 for allowing sludge to enter, two ends of the casing are provided with baffles 110, and an upper filter press motor 150 drives a roller 170 to rotate, thereby driving an upper filter press belt 120 to roll. The lower filter press motor 160 drives the roller 170 to rotate, and further drives the lower filter 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 filter press belt 120 and the lower filter press belt 130 define a filter press zone 420. Mud import 100 and gravity subside district 400 intercommunication, mud flows downwards after getting into from mud import 100 and subsides in gravity subside district 400, because the mud water content is different, and mud is the same at gravity subside district 400 time of subsiding for it is different to enter into the mud water content that filter-pressing district 420 carried out the filter-pressing, can lead to final mud cake water content that arrives to be difficult to reach the requirement, will not satisfy the requirement to the mud that water content is big. The sludge settled in the gravity settling zone 400 is then passed to the pre-compression zone.
As shown in fig. 3, a motor shaft of the pre-pressing motor 200 is connected to the cam 210, the cam 210 is connected to the driving rack 220, so that after the pre-pressing motor 200 is started, the driving rack 220 moves up and down through the cam 210, two ends of the driving rack 220 are respectively connected to the moving rods 230, each moving rod 230 is provided with a plurality of racks 231, the racks 231 are arranged in a vertical direction, so that the moving rods 230 drive the racks 231 to move up and down, each rack 231 is engaged with one gear 240, the rack 231 moves up and down to drive the gears 240 to rotate, the rack 231 arranged on each moving rod 230 is opposite to the rack 231 arranged on the other moving rod 230, and the two racks 231 arranged oppositely are opposite, so that the rotating directions of the two gears 240 are opposite.
As shown in fig. 4, every two gears 240 are oppositely arranged, and the two oppositely arranged gears 240 are coaxial, each gear 240 is connected with the rotating shaft 242 through a torsion spring 241, the two oppositely arranged rotating shafts 242 are rotatably connected, the pre-pressing plate 250 comprises two filter cloths 251 and a connecting plate, the two filter cloths 251 are connected through the connecting plate, each connecting plate is provided with a sleeve, and each sleeve is sleeved on one correspondingly arranged rotating shaft 242, i.e., each two pre-pressing plates 250 are rotatably connected.
Every two rotatably connected prepressing plates 250 form a prepressing assembly, every two prepressing assemblies are close to each other, a space defined between every two prepressing assemblies is called a first prepressing chamber 252, and a space defined between every two adjacent prepressing assemblies is called a second prepressing chamber 253, so that when the prepressing motor 200 is started, sludge is clamped between every two prepressing assemblies and sludge is clamped between every two adjacent prepressing assemblies alternately. Namely, the first prepressing chamber 252 and the second prepressing chamber 253 alternately perform the filter pressing on the sludge. When sludge is pretreated, the clamping process always exists. So as to realize the uninterrupted continuous pretreatment of the sludge, the water content of the pretreated sludge is reduced, and the water content of the finally obtained mud cake is also reduced.
Each prepressing plate 250 is provided with a sealing plate 260, the sealing plate 260 can seal the rolling direction of the lower pressing filter belt 130 to ensure that sludge cannot be extruded when the sludge is extruded, the prepressing plates 250 are of an internal hollow structure, the lower ends of the prepressing plates 250 are provided with water outlet holes, the surface for extruding the sludge is the filter cloth 251, therefore, sewage can be extruded into the internal cavities of the prepressing plates 250 and then flows out through the water outlet holes at the lower ends of the prepressing plates 250 and the filter cloth 251, the sewage can flow outwards from three directions, and the prepressing efficiency of the sludge is further ensured.
As shown in fig. 3, the pre-pressing mechanism is installed in a pre-pressing housing 300, and the pre-pressing housing is provided with a first driving rod chute 301 and a second driving rod chute 302. 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 slidably mounted on the pre-pressing plate 250 up and down, the other end of the first scraper driving rod 270 is slidably mounted on the first driving rod chute 301, and the other end of the second scraper driving rod 271 is slidably mounted on the second driving rod chute 302. The first scraper 280 and the second scraper 281 are slidably installed on the two filter cloths 251 respectively, and are used for scraping off residual sludge from 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 lever 270 is located below the first driving lever chute 301, the other end of the first scraper driving lever 270 is located below the pre-press plate 250, so that the first scraper 280 is located below, that is, the first scraper 280 tends to move upward, one end of the second scraper driving lever 271 is located above the second driving lever chute 302, and the other end of the second scraper driving lever 271 is located above the pre-press plate 250, so that the second scraper 281 is located below, that is, the second scraper 281 tends to move downward.
When the pre-pressure plate 250 is in an initial state, when the pre-pressure motor 200 is started to perform alternate filter pressing on sludge in the first pre-pressure chamber 252 and the second pre-pressure chamber 253, that is, when the first pre-pressure chamber 252 is pressed inward, the second scraper driving rod 271 drives the second scraper 281 to be located above under the restriction of the second driving rod sliding chute 302, at this time, the second pre-pressure chamber 253 is in an open state, and the first scraper driving rod 270 drives the first scraper 280 to be located below under the restriction of the first driving rod sliding 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 move downwards along the filter cloth 251 under the restriction of the second driving rod sliding groove 302 to scrape off the sludge adhered to the filter cloth 251, the first pre-pressing cavity 252 returns to a high position when contracting again to prepare for scraping sludge next time, similarly, when the first pre-pressing cavity 252 is opened and the second pre-pressing cavity 253 performs filter pressing, the first scraper 280 scrapes off the sludge on the first pre-pressing cavity, cleans the filter cloth 251 after filter pressing while performing alternate filter pressing, and ensures that the filter cloth 251 is cleaned also by the filter pressing efficiency.
The sludge dehydrated through pretreatment enters the filter-pressing area 420 under the action of the lower filter-pressing belt 130, the moisture in the sludge is extruded out through the filter-pressing area 420 and finally flows out from the dry sludge outlet 430, the extruded moisture enters the water collecting tank 140 to be collected, and a sludge collecting device can be placed at the tail of the device to collect the dry sludge.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (3)
1. The utility model provides a sludge dewatering equipment for industrial sewage treatment which characterized in that: the sludge filter press comprises an upper filter press belt, a lower filter press belt and a prepressing mechanism, wherein the upper filter press belt and the lower filter press belt are rotatably arranged, a gravity settling area, a prepressing area, a filter press area and a dry sludge outlet are sequentially arranged along the rolling direction of the lower filter press belt, the prepressing mechanism is installed in the prepressing area and comprises a plurality of prepressing components, each prepressing component comprises two prepressing plates which are rotatably connected, every two prepressing components are close to each other, a space defined between every two prepressing components is called a first prepressing cavity, a space defined between every two adjacent prepressing components is called a second prepressing cavity, and the first prepressing cavity and the second prepressing cavity are configured to alternately perform sludge filter pressing; the prepressing plate comprises two filter cloths and a connecting plate, the two filter cloths are connected through the connecting plate, the prepressing plate is of an internal hollow structure, a water outlet hole is formed in the lower end of the prepressing plate, and the first prepressing cavity and the second prepressing cavity are sealed through a sealing plate;
the dehydration equipment also comprises a prepressing shell and a mud scraping mechanism, wherein the prepressing 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 vertically sliding manner, the other end of the first scraper driving rod is arranged on the first driving rod sliding groove in a sliding manner, and the other end of the second scraper driving rod is arranged on the second driving rod sliding groove in a sliding manner; the first scraper and the second scraper are respectively arranged on the two filter cloths in a sliding manner, the first scraper driving rod is rotatably connected with the first scraper, and the second scraper driving rod is rotatably connected with the second scraper; in an initial state, one end of a first scraper driving rod is positioned below a first driving rod sliding groove, the other end of the first scraper driving rod is positioned below a prepressing plate, so that the first scraper is positioned below the prepressing plate, one end of a second scraper driving rod is positioned above the second driving rod sliding groove, the other end of the second scraper driving rod is positioned above the prepressing plate, and the second scraper is positioned below the prepressing plate;
each pre-pressing assembly further comprises two racks, two gears and two rotating shafts; the two racks can synchronously move up and down, are opposite and reversely arranged, and are meshed with one gear, so that the rotating 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 rotating shafts which are arranged oppositely are rotatably connected, each prepressing plate is provided with a sleeve, and each sleeve is sleeved on the corresponding rotating shaft, so that every two prepressing plates are rotatably connected.
2. The sludge dewatering apparatus for industrial sewage treatment according to claim 1, characterized in that: prepressing mechanism still includes pre-compaction motor, cam, carriage release lever and two carriage release levers, and the pre-compaction motor is used for driving the cam rotation, and the carriage release lever is connected respectively at carriage release lever both ends to the carriage release lever that links to each other with the cam, makes the carriage release lever reciprocate, and a plurality of pre-compaction subassemblies correspond a plurality of racks that set up and all set up in the carriage release lever along vertical direction.
3. The sludge dewatering apparatus for industrial sewage treatment according to claim 1, characterized in that: the dewatering equipment further comprises a shell, an upper filter pressing motor, a plurality of rollers and a lower filter pressing motor, a sludge inlet is formed in the shell, the rollers are installed in 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210983884.1A CN115043568B (en) | 2022-08-17 | 2022-08-17 | Sludge dewatering equipment for industrial sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210983884.1A CN115043568B (en) | 2022-08-17 | 2022-08-17 | Sludge dewatering equipment for industrial sewage treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115043568A true CN115043568A (en) | 2022-09-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117510021A (en) * | 2023-12-18 | 2024-02-06 | 苏州和青环保科技有限公司 | Sludge dewatering equipment |
| CN118307173A (en) * | 2024-06-07 | 2024-07-09 | 江苏省城市规划设计研究院有限公司 | Sludge recycling device for sewage treatment |
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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 |
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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 |
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| 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 |
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| CN115043568B (en) | 2023-12-05 |
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