CN216106576U

CN216106576U - Belt dewatering hydraulic filter

Info

Publication number: CN216106576U
Application number: CN202122121225.0U
Authority: CN
Inventors: 陈洪法; 褚礼臣; 李彦伟; 于文江
Original assignee: Jereh Environmental Protection Technology Co Ltd
Current assignee: Jereh Environmental Protection Technology Co Ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-03-22
Anticipated expiration: 2031-09-03

Abstract

The utility model discloses a belt dewatering filter, relates to the technical field of filter pressing and dewatering, and aims to solve the problem of low working efficiency of the conventional belt filter press. The belt type dehydration filter press comprises a frame, and a compression roller assembly, a plurality of upper driven rollers, a plurality of lower driven rollers, an upper filter belt, a lower filter belt, an adjusting roller and a plurality of carrier rollers which are arranged on the frame. A plurality of upper driven rollers are arranged above the compression roller assembly. A plurality of lower driven rollers are arranged below the compression roller assembly. The upper filter belt is sequentially wound on the compression roller assembly and the upper driven rollers. The lower filter belt is sequentially wound on the press roll assembly and the lower driven rolls and arranged below the upper filter belt, and the lower filter belt moves along the feeding direction of the press roll assembly. The adjusting roller can be lifted and arranged on one side of the feed end of the compression roller assembly, and the upper filter belt is wound on the adjusting roller. The bearing roller is located the regulating roller below, and lower filter belt bears on the bearing roller.

Description

Belt dewatering hydraulic filter

Technical Field

The utility model relates to the technical field of filter pressing and dewatering, in particular to a belt type dewatering filter.

Background

In the field of sewage treatment, the water content of sludge to be treated generally exceeds 98%, resulting in a large volume thereof, which makes transport, treatment or utilization of the sludge inconvenient. Therefore, it is necessary to perform dehydration treatment on the sludge to be treated.

In the prior art, mechanical sludge dewatering machines such as centrifugal sludge dewatering machines, stacked screw sludge dewatering machines, general belt filter presses, and the like are generally used. Particularly, in the case of a general belt filter press, the amount of sludge that can be accommodated at the inlet of the filter belt is a fixed value. Therefore, the working efficiency of the belt filter press is limited.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a belt dewatering filter which can improve the working efficiency of a filter press.

In order to achieve the above purpose, the embodiment of the utility model adopts the following technical scheme:

the embodiment of the utility model provides a belt dewatering filter which comprises a rack, a compression roller assembly, a plurality of upper driven rollers, a plurality of lower driven rollers, an upper filter belt, a lower filter belt, an adjusting roller and a plurality of carrier rollers. The compression roller assembly is arranged on the frame. A plurality of last driven rollers set up in the frame, and set up in compression roller assembly top. A plurality of lower driven rollers set up in the frame, and set up in compression roller assembly below. The upper filter belt is sequentially wound on the compression roller assembly and the upper driven rollers and can rotate along a first direction. The lower filter belt is sequentially wound on the press roll assembly and the lower driven rolls and arranged below the upper filter belt, and moves along the feeding direction of the press roll assembly and rotates along the opposite direction of the first direction. The adjusting roller is arranged on the rack in a lifting mode and is arranged on one side of the feeding end of the compression roller assembly, and the upper filter belt is wound on the adjusting roller. The multiple carrier rollers are arranged on the frame and distributed along the horizontal direction, the multiple carrier rollers are arranged below the adjusting roller, the lower filter belt is borne on the carrier rollers, and the part borne on the carrier rollers by the lower filter belt is used for inputting materials to be dehydrated.

The belt type dehydration filter press provided by the embodiment of the utility model inputs sludge to be treated through the part of the lower filter belt carried on the carrier roller. Because the upper filter belt is arranged above the lower filter belt, when the sludge enters the compression roller device, the sludge is arranged between the upper filter belt and the lower filter belt, so that the sludge can be extruded, and dehydration is realized. In addition, when before getting into compression roller assembly, because a plurality of bearing rollers distribute along the horizontal direction, the filter belt distributes along the horizontal direction promptly down, and go up the filter belt winding on the regulating roller of liftable, therefore, through the lift of regulating roller, can adjust and form the contained angle between filter belt and the lower filter belt, can be before getting into compression roller assembly in order to adjust, the sludge amount that can hold between filter belt and the lower filter belt, thereby can carry out the preliminary treatment filter-pressing to the mud of discharge gate output, then carry out dehydration through compression roller assembly, can improve the work efficiency of pressure filter, and be favorable to improving the dehydration effect of pressure filter.

In some embodiments of the utility model, the press roll assembly comprises a first stage press roll, a second stage press roll, a third stage press roll and a fourth stage press roll which are sequentially distributed along the direction far away from the regulating roll; the upper filter belt and the lower filter belt are sequentially wound on the first-stage compression roller, the second-stage compression roller, the third-stage compression roller and the fourth-stage compression roller; wherein, the extrusion force of first level compression roller, second level compression roller, third level compression roller and fourth level compression roller increases in proper order.

In some embodiments of the utility model, the first stage press roll comprises a first stage embossing roll arranged on the frame; the secondary embossing roller is arranged on the frame, is arranged on one side of the primary embossing roller, which is far away from the adjusting roller, and has a diameter smaller than that of the primary embossing roller; wherein, the upper filter belt and the lower filter belt are sequentially wound on the side surfaces of the first-stage pattern roller and the second-stage pattern roller which are far away from each other.

In some embodiments of the utility model, the second-stage pressing roller comprises a first buffer roller arranged on the frame and arranged on one side of the second-stage embossing roller far away from the first-stage embossing roller, and the diameter of the first buffer roller is smaller than that of the second-stage embossing roller; the second buffer roller is arranged on the rack and is arranged on one side of the first buffer roller, which is far away from the secondary embossing roller, and the diameter of the second buffer roller is smaller than that of the first buffer roller; wherein, the upper filter belt and the lower filter belt are sequentially wound on the side surfaces of the first buffer roller and the second buffer roller which are far away from each other.

In some embodiments of the utility model, the third-stage press roll comprises a plurality of upper press rolls which are distributed along the horizontal direction and arranged on one side of the second buffer roll far away from the first buffer roll; the lower squeezing rollers are distributed along the horizontal direction and are arranged on one side, away from the first buffering roller, of the second buffering roller, the lower squeezing rollers are arranged below the upper squeezing rollers, and the upper squeezing rollers and the lower squeezing rollers are sequentially distributed in a staggered manner along the horizontal direction; and the compression roller is arranged on the frame in a lifting manner and is arranged below the lower squeezing roller; the diameters of the upper press roll, the lower press roll and the counter roll are the same and are smaller than the diameter of the second buffer roll; the upper filter belt and the lower filter belt are sequentially wound on the side faces, far away from each other, of the upper squeezing rollers and the lower squeezing rollers, and the counter pressure roller abuts against the face, far away from the upper filter belt, of the lower filter belt.

In some embodiments of the utility model, the fourth press roll comprises a plurality of upper press rolls which are distributed along the horizontal direction and are arranged on one side of the counter press roll far away from the second buffer roll; the plurality of lower compression rollers are arranged on the machine frame in a lifting mode and distributed along the horizontal direction, the plurality of lower compression rollers are arranged on one side, away from the second buffer roller, of the counter compression roller, and the plurality of lower compression rollers are arranged on the lower sides of the plurality of upper compression rollers and are distributed in a staggered mode in sequence; the diameters of the upper pressing roller and the lower pressing roller are the same as the diameter of the counter pressing roller; the upper filter belt and the lower filter belt are squeezed between the upper pressing roller and the lower pressing roller.

In some embodiments of the utility model, the belt type dehydration filter press further comprises a material distribution device, the material distribution device comprises a shell which is fixed on the frame, a material outlet is arranged on the shell, an adjusting roller is arranged between the material outlet and the press roller assembly, and a plurality of carrier rollers are arranged below the shell and the adjusting roller; the rotating shaft is rotatably connected inside the shell and is parallel to the axis of the adjusting roller, a left helical blade and a right helical blade are arranged on the rotating shaft, and the left helical blade and the right helical blade are symmetrically arranged on the rotating shaft; and the driving piece is used for driving the rotating shaft to rotate.

In some embodiments of the present invention, two rotating shafts are arranged and parallel to each other, a transmission gear is fixedly connected to an end of each rotating shaft, the two transmission gears are engaged with each other, and the driving member is configured to drive one rotating shaft to rotate.

In some embodiments of the utility model, the belt-type dewatering filter press further comprises an upper discharging roller arranged on the frame and arranged on one side of the press roller assembly away from the adjusting roller, and the upper filter belt is wound on the upper discharging roller; the upper scraper is fixed on the frame and is abutted against the surface of the upper filter belt, which is far away from the upper discharging roller; the lower discharging roller is arranged on the rack and below the upper discharging roller, and the lower filter belt is wound on the lower discharging roller; and the lower scraper is fixed on the frame and is abutted against the surface of the lower filter belt far away from the lower discharging roller.

In some embodiments of the utility model, the belt dewatering filter press further comprises a first gear fixed to one end of the upper discharge roller and rotating coaxially with the upper discharge roller; the second gear is fixed at one end of the lower discharging roller and rotates coaxially with the lower discharging roller, and the second gear is meshed with the first gear; and the driving device is fixed on the rack and is in transmission connection with the first gear or the second gear.

In some embodiments of the utility model, the belt type dewatering filter press further comprises an upper cleaning device which is fixed at the upper part of the frame and is used for cleaning an upper filter belt above the press roll component; and the lower cleaning device is fixed at the lower part of the frame and used for cleaning the lower filter belt below the press roll assembly.

In some embodiments of the utility model, the belt-type dewatering filter press further comprises an upper wiper fixed on the frame and arranged at one side of the outlet of the upper cleaning device, and the upper wiper abuts against the upper filter belt; the lower water scraping plate is fixed on the rack and arranged on one side of an outlet of the lower cleaning device, and the lower water scraping plate is abutted to the lower filter belt.

In some embodiments of the utility model, the belt-type dewatering filter press further comprises an upper water collecting tank fixed on the frame and arranged below the upper cleaning device and the upper water scraping plate; and the lower water collecting tank is fixed on the rack and is arranged below the lower cleaning device and the upper water scraping plate.

In some embodiments of the utility model, the belt dewatering filter press further comprises an upper tension roll, and the upper filter belt is sequentially wound on the adjusting roll, the press roll assembly, the plurality of upper driven rolls and the upper tension roll; one end of the upper supporting rod is rotatably connected to the rack, and the upper tensioning roller is arranged at the other end of the upper supporting rod; the upper elastic piece is used for pushing the upper supporting rod to rotate; the lower filter belt is sequentially wound on the plurality of carrier rollers, the compression roller assembly, the plurality of lower driven rollers and the lower tensioning roller; one end of the lower supporting rod is rotatably connected to the rack, and the lower tensioning roller is arranged at the other end of the lower supporting rod; and the lower elastic piece is used for pushing the lower support rod to rotate.

In some embodiments of the utility model, the belt type dehydration filter press further comprises a liquid collecting device and a water guide plate, wherein a liquid collecting port is formed in the top surface of the liquid collecting device, and the liquid collecting port is arranged below the compression roller assembly; the water guide plate is arranged below the compression roller assembly and is distributed with the liquid collecting device along the horizontal direction, a water guide groove is formed in the water guide plate, and the water guide groove is communicated with the inside of the liquid collecting device

Drawings

FIG. 1 is a block diagram of a press roll assembly of a belt dewatering filter press as provided herein;

fig. 2 is a structural diagram of a first stage press roll, a second stage press roll, a third stage press roll and a fourth stage press roll of the belt type dewatering filter press provided by the present application;

FIG. 3 is an enlarged view of the structure of the distribution device provided in the present application;

FIG. 4 is an internal structural view of a material distribution device provided in the present application;

fig. 5 is a schematic view of the overall structure of the belt dewatering filter press provided in the present application.

Reference numerals: 100-a frame; 200-a material distribution device; 210-a housing; 211-feed inlet; 212-a discharge port; 220-a rotating shaft; 221-left helical blade; 222-right helical blade; 230-a driver; 240-striker plate; 300-a press roll assembly; 310-first stage press roll; 311-first-stage embossing roll; 312-secondary embossing roll; 320-second stage press roll; 321-a first buffer roller; 322-a second buffer roller; 330-third stage press roll; 331-upper press roll; 332-lower press roll; 333-pair of press rolls; 340-fourth press roll; 341-upper press roll; 342-a lower press roll; 400-upper driven roller; 410-a lower driven roller; 420-a regulating roller; 430-carrier roller; 500-upper filter belt; 510-lower filter belt; 600-loading and unloading rollers; 610-upper scraper; 620-lower discharge roller; 630-lower scraper; 700-a drive means; 710-a first gear; 720-a second gear; 730-a drive chain; 800-cleaning the device; 810-lower cleaning device; 820-upper wiper blade; 830-lower wiper blade; 840-upper water collecting tank; 850-lower water collecting tank; 860-a liquid collecting device; 870-a water deflector; 900-upper tension roller; 910-upper support bar; 920-an upper elastic member; 930-lower tension roll; 940-lower support bar; 950-a lower elastic member; 960-an upper deviation correcting device; 970-upper proximity switch; 980-lower deviation correcting device; 990-lower proximity switch.

Detailed Description

A belt type dewatering filter according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present application provides a belt type dewatering filter, as shown in fig. 1, including a frame 100, a cloth device 200, a press roll assembly 300, a plurality of upper driven rolls 400, a plurality of lower driven rolls 410, an upper filter belt 500, a lower filter belt 510, a regulating roll 420, and a plurality of carrier rollers 430. The material distribution device 200 is disposed on the frame 100, and the material distribution device 200 is provided with a material outlet 212 and a material inlet 211. Sludge to be treated can be poured in through the inlet 211 and be discharged and treated through the outlet 212.

As shown in fig. 1, the pressing roller assembly 300 is disposed on the frame 100 and disposed at one side of the material distribution device 200 along a horizontal direction, and the pressing roller assembly 300 is disposed opposite to the material outlet 212. A plurality of upper driven rollers 400 are disposed on the frame 100 and above the platen roller assembly 300. A plurality of lower driven rollers 410 are disposed on the frame 100 and below the platen roller assembly 300.

As shown in fig. 1, the upper filter belt 500 is sequentially wound around the roll unit 300 and the plurality of upper driven rollers 400, and is rotatable in a first direction. The lower filter belt 510 is sequentially wound around the roller assembly 300 and the lower driven rollers 410, and is disposed under the upper filter belt 500, the lower filter belt 510 passes through the distribution device 200 and extends from the discharge hole 212, and the lower filter belt 510 is driven in a direction extending out of the discharge hole 212 and rotates in a direction opposite to the first direction. For example, the upper filter belt 500 and the lower filter belt 510 each form a closed endless drive structure, and the upper filter belt 500 rotates in a counterclockwise direction and the lower filter belt 510 rotates in a clockwise direction. In this way, the lower filter belt 510 extends from the discharge port 212 and drives the sludge to be treated together, and the upper filter belt 500 and the lower filter belt 510 drive the press roll assembly 300, so that the sludge can be squeezed by the upper filter belt 500 and the lower filter belt, and the sludge can be dewatered.

As shown in fig. 1, the adjusting roller 420 is disposed on the frame 100 in a lifting manner and disposed between the pressing roller assembly 300 and the discharging hole 212 of the material distributing device 200, and the upper filter belt 500 is wound around the adjusting roller 420. The plurality of support rollers 430 are disposed on the frame 100 and distributed in a horizontal direction, the plurality of support rollers 430 are disposed below the distributing device 200 and the adjusting roller 420, and the lower filter belt 510 is carried on the support rollers 430.

The belt type dewatering filter press provided by the embodiment of the utility model feeds the sludge to be treated through the material distribution device 200 and feeds the sludge out of the discharge hole 212 through the lower filter belt 510. Since the upper filter belt 500 is positioned above the lower filter belt 510, the sludge is positioned between the upper filter belt 500 and the lower filter belt 510 when entering the roll apparatus, so that the sludge can be squeezed and dewatered. In addition, when being in the position between compression roller assembly 300 and distributing device 200, because a plurality of bearing rollers 430 distribute along the horizontal direction, frame 100 lower filter belt 510 distributes along the horizontal direction, and upper filter belt 500 twines on liftable adjusting roller 420, therefore, through the lift of adjusting roller 420, can adjust and form the contained angle between upper filter belt 500 and the lower filter belt 510, can adjust the position department between distributing device 200 and compression roller assembly 300, go up the sludge volume that can hold between filter belt 500 and the lower filter belt 510, thereby can carry out the preliminary treatment filter-pressing to the mud of discharge gate 212 output, then carry out dehydration through compression roller assembly 300, can improve the work efficiency of filter press, and be favorable to improving the dehydration effect of filter press.

In addition, the adjusting roller 420 can be arranged on the frame 100 in a lifting manner, and can be realized by a lifting mechanism, for example, a screw nut, a worm gear, and the like, and the lifting structure can be used in the solution of the present application. The lifting mechanism may be manually adjusted or may be automatically adjusted by a driving means such as a motor or a motor. This is not a particular limitation of the present application.

In addition, the angle between the upper filter belt 500 and the lower filter belt 510 between the material distribution device 200 and the press roll assembly 300 is between 3 ° and 10 °. Experiments show that when the angle is between 3 and 10 degrees, the upper filter belt 500 and the lower filter belt 510 have better effect of pretreating and filter-pressing the sludge.

On the basis, in order to further improve the dewatering effect of the sludge, as shown in fig. 1, the press roll assembly 300 provided by the present application includes a first stage press roll 310, a second stage press roll 320, a third stage press roll 330 and a fourth stage press roll 340 which are sequentially distributed along the direction far away from the adjusting roll 420; the upper filter belt 500 and the lower filter belt 510 are sequentially wound on the first stage pressing roller 310, the second stage pressing roller 320, the third stage pressing roller 330 and the fourth stage pressing roller 340; wherein the pressing forces of the first stage pressing roller 310, the second stage pressing roller 320, the third stage pressing roller 330, and the fourth stage pressing roller 340 are sequentially increased. Through increasing the extrusion force in proper order to progressively dewater mud, be favorable to avoiding the too big mud phenomenon that leads to running of pressure. The sludge running phenomenon means that when the pressure is too high, sludge is squeezed out, and the dewatering effect is affected.

In some embodiments, as shown in fig. 2, the first stage pressing roller 310 provided herein includes a first stage embossing roller 311 and a second stage embossing roller 312, both of which are disposed on the frame 100, the second stage embossing roller 312 is disposed on a side of the first stage embossing roller 311 away from the adjusting roller 420, and a diameter of the second stage embossing roller 312 is smaller than a diameter of the first stage embossing roller 311; wherein, the upper filter belt 500 and the lower filter belt 510 are sequentially wound on the side surfaces of the first-stage pattern roller 311 and the second-stage pattern roller 312 which are far away from each other, i.e. the upper filter belt 500 and the lower filter belt 510 are wound on the first-stage pattern roller 311 and the second-stage pattern roller 312 in an "S" shape. Since the diameter of the first-stage fancy roller 311 is greater than that of the second-stage fancy roller 312, according to the belt transmission principle, the tension when the upper filter belt 500 and the lower filter belt 510 are wound on the first-stage fancy roller 311 is smaller than the tension when the upper filter belt 500 and the lower filter belt 510 are wound on the second-stage fancy roller 312, so that the extrusion force on the sludge when the upper filter belt 500 and the lower filter belt 510 are wound on the first-stage fancy roller 311 is smaller than the extrusion force when the upper filter belt 500 and the lower filter belt 510 are wound on the second-stage fancy roller 312, and the extrusion force on the sludge is gradually increased to gradually dehydrate the sludge.

In addition, the first-stage embossing roll 311 and the second-stage embossing roll 312 may be vertically staggered or at the same height in the vertical direction, which is not specifically limited in the present application.

In some embodiments, as shown in fig. 2, the second secondary pressing roller 320 includes a first buffer roller 321 and a second buffer roller 322, both of which are disposed on the frame 100. The first buffer roller 321 is arranged on one side of the secondary embossing roller 312 far away from the primary embossing roller 311, and the diameter of the first buffer roller 321 is smaller than that of the secondary embossing roller 312; the second buffer roller 322 is arranged on one side of the first buffer roller 321 far away from the secondary fancy roller 312, and the diameter of the second buffer roller 322 is smaller than that of the first buffer roller 321; wherein the upper filter belt 500 and the lower filter belt 510 are sequentially wound on the sides of the first buffer roller 321 and the second buffer roller 322 which are far away from each other, i.e., the upper filter belt 500 and the lower filter belt 510 are wound on the first buffer roller 321 and the second buffer roller 322 in an "S" shape. Since the diameters of the first buffer roller 321 and the second buffer roller 322 are sequentially reduced, the tension of the upper filter belt 500 and the lower filter belt 510 is gradually increased, so that the pressing force of the upper filter belt 500 and the lower filter belt 510 on the sludge can be continuously increased to gradually perform the dehydration treatment on the sludge.

In some embodiments, as shown in fig. 2, the third stage press roll 330 includes a plurality of upper press rolls 331, a plurality of lower press rolls 342, and a counter press roll 333. The plurality of upper press rolls 331 are distributed in a horizontal direction and are disposed on a side of the second buffer roll 322 distant from the first buffer roll 321. The plurality of lower press rolls 332 are distributed in the horizontal direction and are disposed on the side of the second buffer roll 322 far away from the first buffer roll 321, the plurality of lower press rolls 332 are disposed below the upper press roll 331, and the plurality of upper press rolls 331 and the plurality of lower press rolls 332 are sequentially distributed in a staggered manner in the horizontal direction. The counter roll 333 is arranged on the frame 100 in a lifting manner and below the lower press roll 332.

Wherein, the diameters of the upper press roll 331, the lower press roll 332 and the counter roll 333 are the same and smaller than the diameter of the second buffer roll 322; the upper and

lower filter belts

500 and 510 are sequentially wound around the sides of the upper and lower press rolls 331 and 332, which are spaced apart from each other, and the counter-pressure roller 333 abuts on the surface of the lower filter belt 510, which is spaced apart from the upper filter belt 500, i.e., the upper and

lower filter belts

500 and 510 are wound around the upper and lower press rolls 331 and 332 in an "S" shape. Since the diameters of the upper and lower press rolls 331 and 332 are smaller than the diameter of the second buffer roll 322, the tension of the upper and

lower filter belts

500 and 510 wound around the upper and lower press rolls 331 and 332 can be increased to further increase the pressing force applied to the sludge.

In addition, since partial dehydration of the sludge is already achieved after the sludge is subjected to the above-mentioned pressing, a larger pressing force is required to achieve further improvement of the dehydration rate of the sludge. This application is through liftable to compression roller 333 to adjust the distance between compression roller 333 and the lower squeeze roller 332, thereby exert bigger extrusion force to lower filter belt 510 and last filter belt 500, thereby be favorable to the progress to carry out dehydration to mud.

In addition, the counter pressure roller 333 may have four upper press rollers 331 and four lower press rollers 332, which are arranged in a staggered manner. And one or more press rolls 333 may be provided, for example, when two press rolls 333 are provided, they are provided just below the two lower press rolls 332 located at both sides, respectively, to press the upper and

lower filter belts

500 and 510.

To ensure the pressing force is increased stepwise, the gap between the pressing roller 333 adjacent to the second buffer roller 322 and the upper lower pressing roller 332 is larger than the gap between the pressing roller 333 remote from the second buffer roller 322 and the upper lower pressing roller 332, thereby ensuring the pressing force to the upper filter belt 500 and the lower filter belt 510 to be increased stepwise.

The above-mentioned liftable counter-pressure roller 333 may adopt the above-mentioned lifting mechanism, or may adopt a support frame and an air bag to realize lifting, for example, the counter-pressure roller 333 is disposed at the top end of the support frame, the air bag is disposed at the bottom end of the support frame, and the lifting of the support frame is realized by inflating and deflating the air bag, that is, the gap between the counter-pressure roller 333 and the upper lower squeezing roller 332 is adjusted.

In some embodiments, as shown in FIG. 2, the fourth laminating roller 340 includes a plurality of upper laminating rollers 341 and a plurality of lower laminating rollers 342. The plurality of upper press rollers 341 are distributed in the horizontal direction and are disposed on a side of the counter press roller 333 away from the second buffer roller 322. The plurality of lower press rollers 342 are arranged on the frame 100 in a lifting manner and are distributed along the horizontal direction, the plurality of lower press rollers 342 are arranged on one side of the counter press roller 333 away from the second buffer roller 322, and the plurality of lower press rollers 342 are arranged on the lower sides of the plurality of upper press rollers 341 and are sequentially distributed in a staggered manner; wherein, the diameters of the upper pressure roller 341 and the lower pressure roller 342 are the same as the diameter of the counter pressure roller 333; the upper and

lower filter belts

500 and 510 are pressed between the upper and

lower press rollers

341 and 342. In this way, the lower press roll 342 which can be lifted up and down adjusts the gap with the upper press roll 341, thereby performing high-pressure pressing on the upper filter belt 500 and the lower filter belt 510 and further performing dehydration treatment on the sludge.

Based on this, the compression roller assembly 300 performs low-pressure, medium-pressure, high-pressure and ultrahigh-pressure compression on the sludge through different pressures, so as to gradually increase the compression strength and reduce the water content of the treated sludge to below 60%. Not only can ensure and reduce the water content of the sludge, but also can improve the working efficiency.

On the basis, as shown in fig. 3 and 4, the material distribution device 200 includes a housing 210, at least one rotating shaft 220, and a driving member 230. The housing 210 is fixed on the frame 100, the inlet 211 is opened on the top surface of the housing 210, and the outlet 212 is opened on the side wall of the housing 210 facing the adjusting roller 420. At least one rotating shaft 220 is rotatably connected to the inside of the housing 210, the rotating shaft 220 is parallel to the axis of the adjusting roller 420, a left helical blade 221 and a right helical blade 222 are provided on the rotating shaft 220, and the left helical blade 221 and the right helical blade 222 are symmetrically provided on the rotating shaft 220. And a driving member 230 for driving the rotation shaft 220 to rotate. The sludge to be treated is poured in through the feeding hole 211 on the top surface of the housing 210, and since the rotating shaft 220 is provided with the left helical blade 221 and the right helical blade 222, when the sludge is poured in, the rotating shaft 220 rotates to enable the sludge to flow to the two ends of the rotating shaft 220 along the left helical blade 221 and the right helical blade 222, so that the sludge can be uniformly distributed on the lower filter belt 510 below.

In some embodiments, as shown in fig. 3 and 4, the two rotating shafts 220 are arranged in parallel, a transmission gear is fixedly connected to an end of each rotating shaft 220, the two transmission gears are engaged with each other, and the driving member 230 is used for driving one rotating shaft 220 to rotate. The uniform distribution on the lower filter belt 510 is further improved by the simultaneous rotation of the two rotation shafts 220.

In some embodiments, as shown in fig. 3 and 4, a liftable baffle 240 is further disposed at the discharge port 212 of the housing, and the sludge discharged from the discharge port 212 can be flattened through the baffle 240, so as to facilitate the compaction and subsequent filter pressing of the upper filter belt 500 and the lower filter belt 510. And liftable striker plate 240 can be according to the size regulator height of the sludge volume of adding, adjust the size of discharge gate 212 promptly, for example, when the sludge volume is less, if striker plate 240's height is higher, then can not touch the mud on the lower filter belt 510, then at this moment, can not pave mud, can influence follow-up filter-pressing to mud. Therefore, the height of the discharge plate is adjusted, so that the working efficiency of filter pressing of the sludge is improved.

When the upper filter belt 500 and the lower filter belt 510 are driven to the side of the press roll assembly 300 far away from the material distribution device 200, the upper filter belt 500 rotates upwards in the counterclockwise direction, the lower filter belt 510 rotates downwards in the clockwise direction, i.e. the upper filter belt 500 and the lower filter belt 510 are separated from each other, and sludge cakes formed by the sludge after the extrusion treatment can be attached to the upper filter belt 500 and the lower filter belt 510. In order to clean the mud cake on the upper and

lower filter belts

500 and 510, as shown in fig. 5, the belt type dewatering filter press provided by the present application further includes an upper discharge roller 600, an upper scraper 610, a lower discharge roller 620, and a lower scraper 630.

As shown in fig. 5, the upper discharging roller 600 is disposed on the frame 100 and on a side of the pressing roller assembly 300 away from the adjusting roller 420, and the upper filter belt 500 is wound on the upper discharging roller 600. The upper scraper 610 is fixed to the frame 100, and the upper scraper 610 abuts on the surface of the upper filter belt 500 away from the upper discharge roller 600. The lower discharging roller 620 is disposed on the frame 100 and below the upper discharging roller 600, and the lower filter belt 510 is wound on the lower discharging roller 620. The lower scraper 630 is fixed on the frame 100, and the lower scraper 630 abuts against the surface of the lower filter belt 510 away from the lower discharge roller 620. Mud cakes attached to the corresponding upper filter belt 500 and the corresponding lower filter belt 510 can be scraped off by the upper scraper 610 and the lower scraper 630 respectively, so that the phenomenon that the excessive mud cakes attached to the upper filter belt 500 and the lower filter belt 510 are mixed into sludge to be treated after circulation for one week to influence the dewatering effect is avoided.

On the basis, as shown in fig. 5, the belt type dewatering filter press provided by the present application further includes a first gear 710, a second gear 720 and a driving device 700, wherein the first gear 710 is fixed at one end of the upper discharging roller 600 and rotates coaxially with the upper discharging roller 600. The second gear 720 is fixed to one end of the lower discharging roller 620 and rotates coaxially with the lower discharging roller 620, and the second gear 720 is engaged with the first gear 710. The driving device 700 is fixed on the frame 100 and is in transmission connection with the first gear 710 or the second gear 720. The driving device 700 drives the first gear 710 or the second gear 720 to be in transmission connection, for example, the driving device 700 is in transmission connection with the first gear 710, the driving device 700 can drive the first gear 710 to rotate, and since the first gear 710 and the second gear 720 are meshed, the first gear 710 can drive the second gear 720 to rotate, and the first gear 710 and the second gear 720 respectively rotate in opposite directions. In this way, the first gear 710 can rotate the upper discharging roller 600, and the second gear 720 can rotate the lower discharging roller 620, so that the upper filter belt 500 and the lower filter belt 510 can rotate in opposite directions.

Furthermore, the transmission connection between the driving device 700 and the first gear 710 is not exclusive, for example, the output shaft of the driving device 700 may be directly and fixedly connected with the first gear 710, so as to drive the first gear 710 to rotate. A driving wheel may be fixedly connected to the output shaft of the driving device 700, and the driving wheel is in driving connection with the first gear 710 through a driving chain 730. This is not a particular limitation of the present application.

In addition, the driving device 700 may be a driving motor commonly used in the market, and the power and the model thereof may be determined according to the actual working conditions.

In order to ensure that no residual cake is mixed into the sludge to be treated during the circulation of the upper filter belt 500 and the lower filter belt 510, as shown in fig. 5, the belt type dewatering filter press provided by the present application further includes an upper cleaning device 800 and a lower cleaning device 810. The upper cleaning device 800 is fixed to the upper portion of the frame 100 and is used for cleaning the upper filter belt 500 above the press roll assembly 300. The lower cleaning device 810 is fixed to a lower portion of the frame 100 for cleaning the lower filter belt 510 under the press roller assembly 300. After the mud cakes on the upper filter belt 500 and the lower filter belt 510 are scraped off, the mud cakes are respectively cleaned by the upper cleaning device 800 and the lower cleaning device 810, so that the upper filter belt 500 and the lower filter belt 510 can be further ensured to be clean when rotating to the adjusting roller 420 and the carrier roller 430, and the mud cakes can be further filter-pressed.

Based on this, as shown in fig. 5, the belt type dewatering filter press provided by the present application further includes an upper wiper 820 and a lower wiper 830, the upper wiper 820 is fixed on the frame 100 and is disposed at the outlet side of the upper cleaning device 800, and the upper wiper 820 abuts against the upper filter belt 500; the lower wiper blade 830 is fixed to the frame 100 and disposed at an outlet side of the lower cleaning device 810, and the lower wiper blade 830 abuts against the lower filter belt 510. After being cleaned by the cleaning device, the water on the upper filter belt 500 and the water on the lower filter belt 510 are respectively scraped by the upper water scraping plate 820 and the lower water scraping plate 830, so that the water on the upper filter belt 500 and the water on the lower filter belt 510 are prevented from being mixed into the sludge to be treated, and the sludge dewatering efficiency is improved.

In some embodiments, as shown in fig. 5, the belt-type dewatering filter press provided herein further includes an upper water collecting tank 840 and a lower water collecting tank 850, wherein the upper water collecting tank 840 is fixed to the frame 100 and disposed below the upper washing device 800 and the upper wiper plate 820; the lower water collecting tank 850 is fixed to the frame 100 and is disposed below the lower cleaning device 810 and the upper wiper blade 820. The cleaned sewage is collected through the upper water collecting tank 840 and the lower water collecting tank 850, so as to be uniformly treated. And can avoid water to drench on other parts to be favorable to the whole clean and tidy clean of equipment.

In order to further facilitate the recovery of sewage generated in the sludge filter-pressing process, as shown in fig. 5, the belt type dehydration filter press provided by the present application further comprises a liquid collecting device 860 and a water guide plate 870, wherein a liquid collecting port is formed on the top surface of the liquid collecting device 860, and the liquid collecting port is arranged below the press roll assembly 300; the water guide plate 870 is arranged below the press roller assembly 300 and is distributed with the liquid collecting device 860 along the horizontal direction, a water guide groove is formed in the water guide plate 870, and the water guide groove is communicated with the inside of the liquid collecting device 860. The water generated in the filter pressing process can be guided into the liquid collecting device 860 through the water chute so as to be convenient for recovery treatment. And can avoid sewage to drench on equipment, be favorable to the whole clean and tidy of equipment.

In some embodiments, in order to facilitate the drainage or recycling of the water inside the upper water collecting tank 840, the lower water collecting tank 850 and the liquid collecting device 860, the three may be communicated with each other through a pipeline, so that all the generated water flows to the lowest point, thereby facilitating the overall recycling. For example, in the present embodiment, the lower water collecting tank 850 is located at the lowest position, so that the three can be communicated with each other, and the sewage can be discharged through the lower water collecting tank 850.

On this basis, as shown in fig. 5, the belt type dewatering filter press further includes an upper tension roll 900, an upper support rod 910, an upper elastic member 920, a lower tension roll 930, a lower support rod 940, and a lower elastic member 950. The upper filter belt 500 is sequentially wound around the dancer 420, the pressure roller assembly 300, a plurality of upper driven rollers 400, and an upper tension roller 900. One end of the upper support bar 910 is rotatably connected to the frame 100, and the upper tension roller 900 is disposed at the other end of the upper support bar 910. The upper elastic member 920 serves to push the upper support rod 910 to rotate. The lower filter belt 510 is sequentially wound around the plurality of idlers 430, the pressure roller assembly 300, the plurality of lower driven rollers 410, and the lower tension roller 930. One end of the lower support rod 940 is rotatably connected to the frame 100, and the lower tension roller 930 is disposed at the other end of the lower support rod 940. The lower elastic member 950 is used to push the lower support rod 940 to rotate. The upper and lower support rods 910 and 940 can be respectively pushed to rotate by the upper and lower elastic members 920 and 950, so that the positions of the upper and lower tension rollers 900 and 930 can be adjusted, and the tension of the upper and

lower filter belts

500 and 510 can be adjusted. For example, when the tension of the upper and

lower filter belts

500 and 510 is small, the pressing force of the upper and lower filter belts against the sludge is reduced, which affects the dewatering effect of the sludge. Therefore, the positions of the upper and lower tension rollers 900 and 930 may be adjusted at this time, so that the tension of the upper and

lower filter belts

500 and 510 is increased, thereby contributing to the improvement of the dewatering effect of the sludge.

It should be noted that the rotation axes of the upper support rod 910 and the lower support rod 940 are parallel to each other and are parallel to the upper tension roller 900 and the lower tension roller 930. And it is required to increase the tension of the upper and

lower filter belts

500 and 510, the upper and lower support bars 910 and 940 may be rotated away from the adjacent upper and lower driven

rollers

400 and 410, i.e., the formation of rotation of the upper and

lower filter belts

500 and 510 is increased, thereby enabling to increase the tension of the upper and

lower filter belts

500 and 510.

In addition, the upper elastic member 920 and the lower elastic member 950 may employ an elastic member having a restoring force, for example, an air bag. The rotation of the upper support rod 910 and the lower support rod 940 can be pushed by inflating and deflating the air bag. And the balloon may be inflated and deflated manually or automatically by, for example, a pneumatic pump. Therefore, the present application is not particularly limited thereto.

In some embodiments, as shown in figure 5, the belt dewatering filter press provided herein further comprises an upper deviation correction device 960, an upper proximity switch 970, a lower deviation correction device 980, and a lower proximity switch 990. The portion of the upper belt 500 above the roll assembly 300 passes through the upper deviation correcting device 960, and upper proximity switches 970 are respectively provided at both sides of the upper belt 500. The portion of the lower filter belt 510 below the roll assembly 300 passes through the lower deviation correcting device 980, and lower proximity switches 990 are provided at both sides of the lower filter belt 510, respectively. When the upper filter belt 500 touches the corresponding upper proximity switch 970 or the lower filter belt 510 touches the corresponding lower proximity switch 990, the upper correction device 960 corrects the upper filter belt 500, or the lower correction device 980 corrects the lower filter belt 510, so that the upper filter belt 500 and the lower filter belt 510 can be adjusted in real time, and the deviation of the motion track during transmission can be avoided.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A belt dewatering filter, comprising:

a frame;

the compression roller assembly is arranged on the rack;

the upper driven rollers are arranged on the rack and are arranged above the compression roller assembly;

the lower driven rollers are arranged on the rack and below the compression roller assembly;

the upper filter belt is sequentially wound on the compression roller assembly and the upper driven rollers and rotates along a first direction;

the lower filter belt is sequentially wound on the compression roller assembly and the lower driven rollers and arranged below the upper filter belt, and moves along the feeding direction of the compression roller assembly and rotates along the direction opposite to the first direction;

the adjusting roller is arranged on the rack in a lifting mode and is arranged on one side of the feeding end of the compression roller assembly, and the upper filter belt is wound on the adjusting roller; and

the supporting rollers are arranged on the rack and distributed along the horizontal direction, the supporting rollers are arranged below the adjusting roller, the lower filter belt is borne on the supporting rollers, and the part borne on the supporting rollers by the lower filter belt is used for inputting materials to be dehydrated.

2. The belt dewatering filter press according to claim 1, wherein the press roll assembly comprises a first press roll, a second press roll, a third press roll and a fourth press roll sequentially distributed in a direction away from the adjusting roll;

the upper filter belt and the lower filter belt are sequentially wound on the first-stage pressing roller, the second-stage pressing roller, the third-stage pressing roller and the fourth-stage pressing roller;

wherein the extrusion forces of the first stage press roll, the second stage press roll, the third stage press roll and the fourth stage press roll increase in sequence.

3. The belt dewatering filter press of claim 2, wherein the first stage press roll comprises:

the first-stage embossing roller is arranged on the rack; and

the secondary embossing roller is arranged on the rack, is arranged on one side of the primary embossing roller, which is far away from the adjusting roller, and has a diameter smaller than that of the primary embossing roller;

the upper filter belt and the lower filter belt are sequentially wound on the side faces, far away from each other, of the first-stage cotton roller and the second-stage cotton roller.

4. The belt dewatering filter press of claim 3, wherein the second stage press roll comprises:

the first buffer roller is arranged on the rack and is arranged on one side, away from the first-stage embossing roller, of the second-stage embossing roller, and the diameter of the first buffer roller is smaller than that of the second-stage embossing roller; and

the second buffer roller is arranged on the rack and is arranged on one side, away from the secondary embossing roller, of the first buffer roller, and the diameter of the second buffer roller is smaller than that of the first buffer roller;

the upper filter belt and the lower filter belt are sequentially wound on the side faces, far away from each other, of the first buffer roller and the second buffer roller.

5. The belt dewatering filter press of claim 4, wherein the third stage press roll comprises:

the upper press rolls are distributed along the horizontal direction and are arranged on one side, away from the first buffer roll, of the second buffer roll;

the lower squeezing rollers are distributed along the horizontal direction and are arranged on one side, away from the first buffering roller, of the second buffering roller, the lower squeezing rollers are arranged below the upper squeezing rollers, and the upper squeezing rollers and the lower squeezing rollers are sequentially distributed in a staggered manner along the horizontal direction; and

the counter-pressure roller is arranged on the frame in a lifting manner and is arranged below the lower squeezing roller;

wherein the diameters of the upper press roll, the lower press roll and the counter-press roll are the same and smaller than the diameter of the second buffer roll; the upper filter belt and the lower filter belt are sequentially wound on the side faces, far away from each other, of the upper press rolls and the lower press rolls, and the counter-pressure roll is abutted to the face, far away from the upper filter belt, of the lower filter belt.

6. The belt dewatering filter press of claim 5, wherein the fourth press roll comprises:

the upper compression rollers are distributed along the horizontal direction and are arranged on one side, far away from the second buffer roller, of the counter compression roller; and

the lower compression rollers are arranged on the rack in a lifting mode and distributed along the horizontal direction, the lower compression rollers are arranged on one side, away from the second buffer roller, of the counter compression roller, and the lower compression rollers are arranged on the lower sides of the upper compression rollers and are distributed in a staggered mode in sequence;

the diameters of the upper pressing roller and the lower pressing roller are the same as the diameter of the counter pressing roller; the upper filter belt and the lower filter belt are squeezed between the upper pressing roller and the lower pressing roller.

7. The belt dewatering filter press according to any one of claims 1 to 6, further comprising a distribution device, the distribution device comprising:

the shell is fixed on the rack, a discharge hole is formed in the shell, the adjusting roller is arranged between the discharge hole and the compression roller assembly, and the plurality of carrier rollers are arranged below the shell and the adjusting roller;

the rotating shaft is rotatably connected inside the shell and is parallel to the axis of the adjusting roller, a left helical blade and a right helical blade are arranged on the rotating shaft, and the left helical blade and the right helical blade are symmetrically arranged on the rotating shaft; and

and the driving piece is used for driving the rotating shaft to rotate.

8. The belt dewatering filter press according to any one of claims 1 to 6, further comprising:

the upper discharging roller is arranged on the rack and is arranged on one side, away from the adjusting roller, of the compression roller assembly, and the upper filter belt is wound on the upper discharging roller;

the upper scraper is fixed on the rack and is abutted against the surface of the upper filter belt, which is far away from the upper discharging roller;

the lower discharging roller is arranged on the rack and below the upper discharging roller, and the lower filter belt is wound on the lower discharging roller; and

and the lower scraper is fixed on the rack and is abutted against the surface of the lower filter belt, which is far away from the lower discharging roller.

9. The belt dewatering filter press according to any one of claims 1 to 6, further comprising:

the upper cleaning device is fixed at the upper part of the frame and used for cleaning the upper filter belt above the press roll assembly;

the upper water scraping plate is fixed on the rack and arranged on one side of the outlet of the upper cleaning device, and the upper water scraping plate is abutted against the upper filter belt;

the lower cleaning device is fixed at the lower part of the frame and used for cleaning the lower filter belt below the compression roller assembly; and

and the lower water scraping plate is fixed on the rack and arranged on one side of the outlet of the lower cleaning device, and the lower water scraping plate is abutted to the lower filter belt.

10. The belt dewatering filter press according to any one of claims 1 to 6, further comprising:

the upper filter belt is wound on the adjusting roller, the compression roller assembly, the plurality of upper driven rollers and the upper tensioning roller in sequence;

one end of the upper supporting rod is rotatably connected to the rack, and the upper tensioning roller is arranged at the other end of the upper supporting rod;

the upper elastic piece is used for pushing the upper supporting rod to rotate;

the lower filter belt is wound on the plurality of carrier rollers, the compression roller assembly, the plurality of lower driven rollers and the lower tensioning roller in sequence;

one end of the lower supporting rod is rotatably connected to the rack, and the lower tensioning roller is arranged at the other end of the lower supporting rod; and

and the lower elastic piece is used for pushing the lower support rod to rotate.