CN214991073U - Ultrahigh pressure belt type sludge dewatering machine - Google Patents

Abstract

The utility model relates to a super high pressure belt sludge dewaterer belongs to sludge drying technical field. The sludge dewatering machine comprises a frame, a plate frame assembly, a filter pressing assembly and a conveying assembly, wherein the frame is of a frame structure, the two sides of the plate frame assembly are respectively connected with the frame through hydraulic cylinders, the filter pressing assembly is arranged in the plate frame assembly, the filter plate assembly comprises two filter rollers, a filter belt and a support frame, the two filter rollers are respectively fixed at the upper end and the lower end of a plate frame framework, the support frame supports the inner side of the filter belt, and two pieces of filter cloth of the conveying assembly pass through the filter pressing assembly to be in contact with the filter belt. The utility model discloses an ultrahigh pressure belt sludge dewaterer increases plate frame subassembly and filter-pressing subassembly, carries out the filter-pressing of super superhigh pressure to the mud in the filter belt, and furthest increases the mud and compresses the compression ratio, improves the dehydration rate of mud.

Description

Ultrahigh pressure belt type sludge dewatering machine

Technical Field

The utility model relates to a sludge drying technical field, concretely relates to super high pressure belt sludge dewaterer.

Background

The conventional process for drying sludge comprises the following steps: and the residual sludge is dried by a belt filter press or a plate-and-frame filter press, collected by a conveying belt and then sent to a sludge piling field.

The above treatment process has a problem of high water content in solid-liquid separation, and the reasons are as follows:

1. after the sludge is dried by a common belt filter press, the water content is about 80 percent, the extrusion filtering pressure of the sludge is low, and the dehydration effect cannot be improved.

2. Adding sludge into a common plate-and-frame filter press and a diaphragm plate-and-frame filter press through a high-pressure pump, wherein the water content of the sludge after filter pressing is usually more than 65%; the water content of the sludge can be reduced to about 60% under the condition of adding lime, the sludge disposal cost is increased, and the sludge cannot be used as fertilizer resources after adding the lime.

3. The plate-and-frame filter press is generally added with sludge by a 2MPa high-pressure pump, and has long working time and high energy consumption. The membrane plate-and-frame filter press has small secondary compression ratio, is the fatal defect of sludge filter pressing dehydration, is produced in batches, has low working efficiency and occupies larger three-dimensional space.

Disclosure of Invention

For solving the problem among the prior art, the utility model discloses a super high pressure belt sludge dewaterer has designed, carries out the filter-pressing of superhigh pressure to mud, satisfies the sludge treatment technology of continuous feeding simultaneously, and work efficiency is high, guarantees the high dehydration rate of mud.

The technical scheme adopted by the invention is as follows: the belt type sludge dewatering machine comprises a frame, plate frame components, a filter pressing component and a conveying component, wherein the frame is of a frame structure, the plate frame components are vertical plate frame structures formed by 3 plate frame frameworks, the 3 plate frame frameworks are sequentially arranged in the frame, the outer side surfaces of the plate frame frameworks on the two sides are respectively connected with the two sides of the frame through hydraulic cylinders, and the two sides of the plate frame framework in the middle are respectively connected with the plate frame frameworks on the two sides through telescopic components;

the filter pressing assembly is arranged in the plate frame assembly and comprises 3 filter plate groups, the 3 filter plate groups are correspondingly arranged in 3 plate frame frameworks, a water receiving tank is arranged below each filter plate group, each filter plate group comprises two filter rollers, a filter belt and a support frame, the two filter rollers are respectively fixed at the upper end and the lower end of the plate frame framework through bearings, the filter belt bypasses the two filter rollers, the support frames are positioned at the inner sides of the filter belts and respectively outwards abut against two side belt bodies of the filter belt, and the support frames are connected with the plate frame frameworks through connecting rods;

the conveying assembly comprises an upper conveying assembly, a lower conveying assembly and a driving roller set, the upper conveying assembly comprises a filter cloth and an upper tensioning roller set, the upper tensioning roller set is located on the upper side of the frame, the lower conveying assembly comprises a lower filter cloth and a lower tensioning roller set, the lower tensioning roller set is located on the lower side of the frame, the driving roller set is located on the lower side of the filter pressing assembly and comprises a driving roller and a driven roller, the driving roller and the driven roller are connected through a synchronous chain, a mud inlet roller is arranged on the front side of the frame, a mud outlet roller is arranged on the rear side of the frame, the upper filter cloth and the lower filter cloth coincide at the mud inlet roller, the driving roller is jointly and downwards bypassed, the filter plate group on the front side and the middle filter plate group upwards penetrate through the middle filter plate group and downwards, the driven roller is bypassed and then upwards, and the mud outlet roller is separated. Mud gets into between filter cloth and the lower filter cloth from advancing mud roller department, get into the filter pressing subassembly along with the filter cloth under the drive of drive roller set, the plate frame subassembly is in the same place the tight pressure of three group's filter plates of filter pressing subassembly under the effect of the pneumatic cylinder of both sides superhigh pressure, pass through for the filter cloth is convenient for, the filter plate group is equipped with the filter roller and drives the filter belt and rotate, the filter cloth can be smooth under the drive of filter belt under the extrusion of superhigh pressure through the filter pressing subassembly, and fully extrude the moisture in the mud, the compression ratio is high.

Furthermore, the dehydrator is provided with a backflushing assembly, the backflushing assembly comprises an upper backflushing device located on the upper side of the rack and a lower backflushing device located on the lower side of the rack, the upper filter cloth penetrates through the upper backflushing device, and the lower filter cloth penetrates through the lower backflushing device. The backflushing component can wash the filter cloth after the sludge is removed, and the filter cloth can still keep good water permeability in continuous work.

Furthermore, the filter belt is uniformly provided with meshes and a vertical water passing groove. The sludge extrusion liquid can be discharged through the meshes of the filter belt and the water passing groove and flows downwards into the water receiving groove.

Furthermore, two filter rolls are synchronous roll shafts of the servo motor, synchronous gears are arranged at two ends of each filter roll respectively, holes which are uniformly arranged are formed in two side edges of each filter belt respectively, the holes in the two side edges of each filter belt are matched with the teeth of the synchronous gears respectively, and the holes in the two side edges of each filter belt are sleeved on the teeth of the synchronous gears. The filter belt is connected with the synchronous gear of the filter roller through the belt holes on the two sides, so that the filter belt can always keep rotating synchronously with the filter roller, and enough power is provided to assist the filter cloth to pass through the filter pressing assembly.

Furthermore, the support frame of the filter plate group comprises two support plates, the two support plates are connected through a jack, two ends of the jack are respectively connected to the centers of the two support plates, the jack is connected with two sides of the plate frame framework through a connecting rod, and a row of pressure roller bearing support filter belt is respectively embedded on the outer side plate surfaces of the two support plates. The jack pushes the supporting plate out towards two sides, so that the supporting plate is in full contact with the filter belt, full extrusion force on the passing filter cloth is guaranteed, and the pressure roller bearing is embedded in the supporting plate, so that the friction force between the supporting plate and the filter belt in the movement process is reduced.

Furthermore, a mud inlet hopper is arranged on the upper side of the mud inlet roller on the front side of the frame, a mud outlet hopper is connected to the lower side of the mud outlet roller on the rear side of the frame, mud scrapers are respectively arranged at the separated positions of the upper filter cloth and the lower filter cloth of the mud outlet hopper, and the two mud scrapers respectively abut against the cloth surfaces of the upper filter cloth and the lower filter cloth. The mud scraper scrapes the dewatered sludge adhered to the filter cloth by extrusion and falls into a mud discharging hopper.

Further, the frame includes left riser support and right riser support, connects through two crossbeams between the coexistence board support, and two crossbeams are connected respectively in the both sides middle part of coexistence board support, left side riser support passes through the pneumatic cylinder and connects first sheet frame skeleton, right side riser support passes through the pneumatic cylinder and connects third sheet frame skeleton.

Furthermore, guide rails are arranged on the two cross beams in the direction of extension respectively, rollers are arranged outside two sides of the 3 plate frame frameworks respectively, and the rollers on the two sides are located in the guide rails of the cross beams on the two sides respectively and can roll along the guide rails.

Furthermore, the same side end of the 3-group water tank is inclined downwards and is connected with a water collecting tank together.

Compared with the prior art, the utility model discloses a super high pressure belt sludge dewaterer's of patent design progress part lies in: the utility model discloses a sludge dewatering machine, which adopts a belt type continuous feeding and discharging mode, is provided with a plate frame component and a filter pressing component, provides ultrahigh extrusion force for the filter pressing component by arranging an ultrahigh hydraulic cylinder, improves the compression ratio of sludge and improves the dewatering rate; the filter plate group of the filter pressing component is provided with a filter roller and a filter belt which synchronously rotates, the filter belt is directly contacted with the filter cloth wrapping the sludge, and the filter belt rotates to ensure that the filter cloth can still stably pass through the filter pressing component under the extrusion force of ultrahigh pressure; the filter plate group is provided with a support frame with a Kicky top at the inner side of the filter belt to support the belt body, and the outer surface of the support plate is embedded with a pressure roller bearing to reduce the friction force between the filter belt and the support plate so that the filter belt can rotate smoothly; the belt type sludge dewatering machine designed by the invention has the advantages of simple structure, reasonable design, small overall occupied area, space saving and operation management cost reduction.

Drawings

FIG. 1 is a schematic view of the plane structure of the super high pressure belt type sludge dewatering machine

FIG. 2 is a schematic view of the front view structure of the body of the ultra-high pressure belt type sludge dewatering machine

FIG. 3 is a schematic view of the press assembly and delivery assembly

FIG. 4 is a schematic view of a filter plate assembly

FIG. 5 is a schematic view of a filter roll

FIG. 6 is a schematic side view of a filter roll

FIG. 7 is a cross-sectional view of a belt

In the figure, 1 machine frame, 2 plate frame assemblies, 3 filter pressing assemblies, 4 conveying assemblies, 5 recoil assemblies, 6 control assemblies, 11 left vertical plate supports, 12 right vertical plate supports, 13 cross beams, 14 guide rails, 15 ultrahigh pressure oil cylinders, 16 mud feeding hoppers, 17 mud discharging hoppers, 18 mud scraping plates, 21 first plate frame frameworks, 22 second plate frame frameworks, 23 third plate frame frameworks, 24 rollers, 31 filter rollers, 32 filter belts, 33 support plates, 34 jacks, 35 water receiving tanks, 311 synchronizing gears, 321 belt holes, 322 mesh holes, 331 pressure roller bearings, 41 driving roller sets, 42 upper conveying assemblies, 43 lower conveying assemblies, 44 mud feeding rollers, 45 mud discharging rollers, 411 driving rollers, 412 driven rollers, 413 synchronizing chains, 421 upper filter cloth, 422 tensioning roller sets, 431 lower filter cloth, 432 lower tensioning roller sets, 51 upper recognizers, 52 lower recognizers

Detailed Description

The invention is further described with reference to the following figures and specific embodiments. The technical solutions in the embodiments of the present invention are clearly and completely described, and the described embodiments are only some embodiments, but not all embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention.

As shown in figures 1, 2 and 3, the utility model discloses an embodiment of a super high pressure belt sludge dewatering machine, which comprises a frame 1, a plate frame component 2, a filter pressing component 3, a conveying component 4 and a backflushing component 5.

The frame 1 is of a frame structure and comprises a left vertical plate support 11 and a right vertical plate support 12, the two vertical plate supports are connected through two cross beams 13, and the two cross beams 13 are respectively connected to the middle parts of the two sides of the two vertical plate supports. The plate frame component 2 is a vertical plate frame structure formed by 3 plate frame frameworks, and is respectively a first plate frame framework 21, a second plate frame framework 22 and a third plate frame framework 23, the 3 plate frame frameworks are sequentially arranged from left to right and are arranged in the rack 1, the outer side surfaces of the first plate frame framework 21 and the third plate frame framework 23 on two sides are respectively connected with the left vertical plate support 11 and the right vertical plate support 12 on two sides of the rack 1 through the ultrahigh pressure oil cylinder 15, and the ultrahigh pressure oil cylinder 15 can provide pressure above 10 MPa. The left side and the right side of the second plate frame framework 22 are respectively connected with the first plate frame framework 21 and the third plate frame framework 23 through jacks, and the shortest contraction length of the jacks can not prevent the filter pressing components 3 from contacting with each other. Guide rails 14 are respectively arranged on two cross beams 13 of the frame 1 in the direction of extension, idler wheels 24 are respectively arranged in the middle parts of two sides of 3 plate frame frameworks, and the idler wheels 24 on the two sides are respectively positioned in the guide rails 14 of the cross beams 13 on the two sides and can roll along the guide rails 14.

The filter pressing component 3 is arranged in the plate frame component 2 and comprises 3 filter plate groups, wherein the first filter plate group, the second filter plate group and the third filter plate group are respectively arranged, the 3 filter plate groups are correspondingly arranged in 3 plate frame frameworks, and a water receiving groove 35 is arranged below each filter plate group. The same side ends of the 3 groups of water tanks 35 are declined together and connected on the water collecting tank.

As shown in fig. 4, the filter plate group includes two filter rollers 31, a filter belt 32 and a support frame, the two filter rollers 31 are fixed at the upper and lower ends of the frame through bearings, and are synchronous servo motor roll shafts, and the filter belt 32 bypasses the two filter rollers 31. The support frame is positioned at the inner side of the filter belt 32 and respectively supports the belt bodies at the two sides of the filter belt 32 outwards. The support frame comprises two support plates 33, the two support plates 33 are connected through a jack 34, two ends of the jack 34 are respectively connected to the centers of the two support plates 33, the jack 34 is connected with two sides of the plate frame framework through a connecting rod, a row of pressure roller bearings 331 are respectively embedded on the outer side plate surfaces of the two support plates 33, and the filter belt 32 is supported through the pressure roller bearings 331.

As shown in fig. 5, 6 and 7, the filter belt 32 is provided with meshes 322 uniformly and is provided with a vertical water passing trough. The filter belt 32 is provided with holes 321 on two sides thereof. Two ends of the filter roller 31 are respectively provided with a synchronous gear 311, the belt holes 321 on two side edges of the filter belt 32 are respectively matched with the synchronous gears 311 on two ends of the filter roller 31, and the belt holes 321 of the filter belt 32 are sleeved on the gear teeth of the synchronous gears 311. The filter belt 32 is connected with the synchronous gears 311 at the two ends of the filter roller 31 through the belt holes 321 at the two sides, so that the filter belt can always keep rotating synchronously with the filter roller 31.

The conveying assembly 4 comprises an upper conveying assembly 42, a lower conveying assembly 43 and a driving roller group 41 and is used for conveying sludge to be dewatered. The upper conveying assembly 42 comprises an upper filter cloth 421 and an upper tensioning roller set 422, the upper filter cloth 421 passes around the upper tensioning roller set 422, and the upper tensioning roller set 422 comprises two roller shafts and is positioned at the upper side of the frame 1. The lower conveying assembly 43 includes a lower filter cloth 431 and a lower tension roller set 432, and the lower filter cloth 431 passes around the lower tension roller set 432 and the lower tension roller set 432 also includes two roller shafts, which are located at the lower side of the frame 1. The driving roller group 41 is positioned at the lower side of the filter pressing assembly 3 and comprises a driving roller 411 and a driven roller 412, the driving roller 411 is connected with a driving motor, and the driving roller 411 and the driven roller 412 are connected through a synchronous chain 413. The front side of the frame 1 is provided with a mud inlet roller 44 at the lower side of the mud inlet hopper 16, and the rear side is provided with a mud outlet roller 45 at the upper side of the mud outlet hopper. The upper filter cloth 421 and the lower filter cloth 431 are overlapped at the mud inlet roller 44, and both of them pass through the driving roller 411 downwards, pass through the space between the first filter plate group and the second filter plate group upwards, pass through the space between the second filter plate group and the third filter plate group downwards, pass through the driven roller 412 and then upwards, and are separated at the mud outlet roller 45. The sludge outlet hopper 17 is provided with sludge scraping plates 18 at the separation part of the upper filter cloth 421 and the lower filter cloth 431, the two sludge scraping plates 18 respectively abut against the cloth surfaces of the upper filter cloth 421 and the lower filter cloth 431, sludge which is pressed and pasted on the filter cloth after dehydration is scraped off and falls into the sludge outlet hopper 17.

The backflushing assembly 5 includes an upper backflushing device 51 at an upper side of the frame 1 and a lower backflushing device 52 at a lower side of the frame 1, an upper filter cloth 421 passes through the upper backflushing device 51, and a lower filter cloth 431 passes through the lower backflushing device 431. The backflushing device can wash the filter cloth after sludge scraping and removing, and the filter cloth can still keep good water permeability in continuous work.

And simultaneously, the utility model discloses a super high pressure belt sludge dewaterer disposes control assembly 6, controls each motor in the hydroextractor, recoil ware etc..

Sludge is dehydrated by a super high pressure belt sludge dehydrator after being pre-concentrated and subjected to high pressure wall breaking treatment, so that the continuous super high pressure dehydration and drying of the sludge are realized under the condition of normal temperature, and the method comprises the following specific steps:

1. after the control assembly is started, sludge is subjected to pre-concentration and high-pressure wall breaking treatment through a sludge pump, then is conveyed to a sludge inlet hopper of a super high-pressure belt type sludge dewatering machine frame, and is spread between upper filter cloth and lower filter cloth;

2. the sludge enters the filter pressing assembly through the conveying assembly, the ultrahigh pressure oil cylinder repeatedly applies pressure of more than 10MPa to the sludge for pressing, filtrate is simultaneously leaked out of meshes of the filter belt and then guided by the water receiving tank, and the water content of the sludge is rapidly reduced;

3. the filter plate of the filter pressing component supports and extrudes sludge in the middle of the filter cloth, and the water content of the sludge after multiple dehydration is 50-60%;

4. the control assembly realizes the transmission of the filter cloth conveyer belt through the driving assembly and the filter roll, automatically transports sludge to the sludge discharge hopper, and simultaneously sprays water at high pressure by the upper and lower back flushing devices of the back flushing assembly to flush the upper and lower filter cloth, thereby being beneficial to continuously ensuring the sludge dewatering efficiency.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, which is defined by the appended claims and the description of the invention.

Claims (9)

1. The ultrahigh pressure belt sludge dehydrator is characterized by comprising a rack, plate frame assemblies, a filter pressing assembly and a conveying assembly, wherein the rack is of a frame structure, the plate frame assemblies are vertical plate frame structures formed by 3 plate frame frameworks, the 3 plate frame frameworks are sequentially arranged in the rack, the outer side surfaces of the plate frame frameworks on two sides are respectively connected with two sides of the rack through hydraulic cylinders, and two sides of the middle plate frame framework are respectively connected with the plate frame frameworks on two sides through telescopic assemblies;

the filter pressing assembly is arranged in the plate frame assembly and comprises 3 filter plate groups, the 3 filter plate groups are correspondingly arranged in 3 plate frame frameworks, a water receiving tank is arranged below each filter plate group, each filter plate group comprises two filter rollers, a filter belt and a support frame, the two filter rollers are respectively fixed at the upper end and the lower end of the plate frame framework through bearings, the filter belt bypasses the two filter rollers, the support frames are positioned at the inner sides of the filter belts and respectively outwards abut against two side belt bodies of the filter belt, and the support frames are connected with the plate frame frameworks through connecting rods;

the conveying assembly comprises an upper conveying assembly, a lower conveying assembly and a driving roller set, the upper conveying assembly comprises a filter cloth and an upper tensioning roller set, the upper tensioning roller set is located on the upper side of the frame, the lower conveying assembly comprises a lower filter cloth and a lower tensioning roller set, the lower tensioning roller set is located on the lower side of the frame, the driving roller set is located on the lower side of the filter pressing assembly and comprises a driving roller and a driven roller, the driving roller and the driven roller are connected through a synchronous chain, a mud inlet roller is arranged on the front side of the frame, a mud outlet roller is arranged on the rear side of the frame, the upper filter cloth and the lower filter cloth coincide at the mud inlet roller, the driving roller is jointly and downwards bypassed, the filter plate group on the front side and the middle filter plate group upwards penetrate through the middle filter plate group and downwards, the driven roller is bypassed and then upwards, and the mud outlet roller is separated.

2. The ultra-high pressure belt sludge dewatering machine of claim 1, wherein the dewatering machine is provided with a backflushing assembly, the backflushing assembly comprises an upper backflushing device located on the upper side of the frame and a lower backflushing device located on the lower side of the frame, the upper filter cloth passes through the upper backflushing device, and the lower filter cloth passes through the lower backflushing device.

3. The ultra-high pressure belt sludge dewatering machine of claim 2, wherein the filter belt is evenly provided with meshes and vertical water passing grooves.

4. The ultra-high pressure belt sludge dewatering machine of claim 3, wherein the two filter rolls are synchronous roll shafts of servo motors, the two ends of the filter rolls are respectively provided with a synchronous gear, the two sides of the filter belt are respectively provided with uniformly arranged belt holes, the belt holes on the two sides of the filter belt are respectively matched with the gear teeth of the synchronous gear, and the belt holes on the two sides of the filter belt are sleeved on the gear teeth of the synchronous gear.

5. The ultra-high pressure belt sludge dewatering machine of claim 4, wherein the support frame of the filter plate group comprises two support plates, the two support plates are connected through a jack, two ends of the jack are respectively connected to the centers of the two support plates, the jack is connected with two sides of the plate frame framework through a connecting rod, and a row of pressure roller bearings for supporting the filter belt are respectively embedded on the outer side plate surfaces of the two support plates.

6. The ultra-high pressure belt sludge dewatering machine of claim 5, wherein the front side of the frame is provided with a sludge inlet hopper on the upper side of the sludge inlet roller, the rear side of the frame is connected with a sludge outlet hopper on the lower side of the sludge outlet roller, the sludge outlet hopper is respectively provided with sludge scraping plates at the separation part of the upper filter cloth and the lower filter cloth, and the two sludge scraping plates respectively abut against the cloth surfaces of the upper filter cloth and the lower filter cloth.

7. The ultra-high pressure belt sludge dewatering machine of claim 6, wherein the frame comprises a left vertical plate support and a right vertical plate support, the two vertical plate supports are connected through two cross beams, the two cross beams are respectively connected to the middle parts of two sides of the two vertical plate supports, the left vertical plate support is connected with the first plate frame through a hydraulic cylinder, and the right vertical plate support is connected with the third plate frame through a hydraulic cylinder.

8. The ultra-high pressure belt sludge dewatering machine of claim 7, wherein the two beams are respectively provided with a guide rail along the extension direction, the two sides of the 3 plate frame frameworks are respectively provided with a roller, and the rollers at the two sides are respectively positioned in the guide rails of the beams at the two sides and can roll along the guide rails.

9. The ultra-high pressure belt sludge dewatering machine of claim 8, wherein the same side ends of the 3 sets of water tanks are inclined downwards synchronously and are connected with the water collecting tank together.

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