CN106110735A - A kind of liquid impurity segregation apparatus - Google Patents

Abstract

The invention discloses a liquid impurity separation device, which comprises a liquid inlet channel, a transmission wheel and a filter cloth cleaning mechanism. An input pipe for delivering liquid to be removed to the liquid inlet channel is arranged above the liquid inlet channel. The bottom of the canal is open, and the bottom of the canal is covered with filter cloth; the filter cloth is ring-shaped; the above-mentioned transmission wheel is supported in the ring-shaped above-mentioned filter cloth, and is used to drive the filter cloth to rotate, so that the filter cloth is continuously moved along the bottom of the liquid inlet channel ; The filter cloth cleaning structure is used to clean up the impurities on the filter cloth not corresponding to the bottom of the liquid inlet channel during the rotation process of the filter cloth. In the liquid impurity separation device, the filter cloth is continuously rotated under the action of the transmission wheel, so that the part corresponding to the liquid inlet canal is filtered, and the part separated from the liquid inlet canal is cleaned under the action of the filter cloth cleaning mechanism. Filtration and cleaning can be carried out at the same time, and there is no need to stop the machine to clean the filter cloth, which is conducive to continuous liquid removal and improves efficiency.

Description

A liquid impurity separation device

technical field

The invention relates to the technical field of machinery industry, more specifically, to a liquid impurity separation device.

Background technique

In the prior art, liquids such as domestic wastewater and industrial wastewater need to undergo impurity removal treatment before they can be discharged or subsequently utilized.

However, currently commonly used liquid impurity removal devices generally include filter cloth, and after a long period of use, the filter cloth is contaminated with impurities, and the liquid impurity removal device needs to be shut down to clean the filter cloth, which affects the process of liquid impurity removal.

To sum up, how to provide a device for removing impurities in liquid so as to avoid shutting down the device to clean the filter cloth is a technical problem to be solved urgently by those skilled in the art.

Contents of the invention

In view of this, the present invention provides a liquid impurity separation device. The filter cloth is ring-shaped and can be continuously rotated during the application process to achieve simultaneous filtration and cleaning without stopping the machine to clean the filter cloth, which facilitates continuous liquid impurity removal and improves efficiency. .

To achieve the above object, the present invention provides the following technical solutions:

A liquid impurity separation device, comprising:

The liquid inlet channel, the upper part of the liquid inlet channel is provided with an input pipe for transporting the liquid to be removed to the liquid inlet channel, the bottom of the liquid inlet channel is open, and the bottom of the channel is covered with filter cloth; The filter cloth is ring-shaped;

A transmission wheel, the transmission wheel is supported in the ring-shaped filter cloth, and is used to drive the filter cloth to rotate, so that the filter cloth continuously moves along the bottom of the liquid inlet channel;

A filter cloth cleaning mechanism, the filter cloth cleaning structure is used to clean the impurities on the part of the filter cloth not corresponding to the bottom of the liquid inlet channel during the rotation process of the filter cloth.

Preferably, the above-mentioned liquid impurity separation device also includes a plurality of runners, the runners are arranged under the liquid inlet channel, and the runners are in tangential contact with the filter cloth; the runners can be Negative pressure is generated during rotation; the tangential speed range of the runner is set to 0.8m/s-8m/s; or

It also includes a plurality of static hollow shafts, the static hollow shafts are arranged under the liquid inlet channel and attached to the filter cloth; the contact surface of the static hollow shafts with the filter cloth is provided with openings, An outlet is provided on the end surface, and is used for sucking liquid through the conduction between the opening and the outlet, so as to form a negative pressure.

Preferably, in the above-mentioned liquid impurity separation device, the first end of the bottom of the liquid inlet channel is higher than the second end; the part of the filter cloth corresponding to the bottom of the channel has an inclined flat plate structure.

Preferably, in the above liquid impurity separation device, the angle between the part of the filter cloth corresponding to the bottom of the canal and the horizontal direction is α, and the angle range of α is 0°-60°.

Preferably, in the above-mentioned liquid impurity separation device, the filter cloth cleaning mechanism includes a slag scraper, an air flushing system and a water flushing system; the scraper is against the outside of the filter cloth; the air flushing system is located at the The inner side of the filter cloth is used to spray gas to the filter cloth in a direction toward the outside of the filter cloth; the water flushing system is used to spray water to the filter cloth.

Preferably, in the above-mentioned liquid impurity separation device, after the filter cloth passes through the liquid inlet channel, it is firstly washed by the air flushing system, and then washed by the water flushing system.

Preferably, in the above-mentioned liquid impurity separation device, sealing strips are respectively fixed on both sides of the liquid inlet channel, and the sealing strips are against the filter cloth, and the sealing strips are along the direction of conveying the filter residue of the filter cloth. layout.

Preferably, in the above-mentioned liquid impurity separation device, the end surface of the sealing strip for abutting against the filter cloth is an arc surface.

Preferably, in the above liquid impurity separation device, the transmission wheel includes a driving wheel and a driven wheel, and the tangential speed of the driving wheel is in the range of 0.01m/s-1.7m/s.

Preferably, the above-mentioned liquid impurity separation device further includes a filter cloth tensioning device and a filter cloth correction device, the filter cloth tensioning device is used to tighten the filter cloth from the inner side of the filter cloth; the filter cloth The deviation correcting device is used to adjust the position of the filter cloth on the transmission wheel.

Preferably, the above-mentioned liquid impurity separation device further includes a liquid collection tank and a waste collection tank; the liquid collection tank is arranged under the liquid inlet channel, and is used to hold the liquid filtered by the filter cloth; the waste collection tank The groove is used to collect the impurities removed by the filter cloth cleaning mechanism and the liquid leaked from the gap between the filter cloth and the bottom of the liquid inlet channel.

The invention provides a liquid impurity separation device, which includes a liquid inlet channel, a transmission wheel and a filter cloth cleaning mechanism. An input pipe for transporting liquid to be removed to the liquid inlet channel is provided above the liquid inlet channel. The bottom is open, and the bottom of the canal is covered with filter cloth; the filter cloth is ring-shaped; the above-mentioned transmission wheel is supported in the ring-shaped above-mentioned filter cloth, and is used to drive the filter cloth to rotate, so that the filter cloth continuously moves along the bottom of the liquid inlet channel; The filter cloth cleaning structure is used to clean the impurities on the part of the filter cloth not corresponding to the bottom of the liquid inlet channel during the rotation process of the filter cloth.

In the above-mentioned liquid impurity separation device, the filter cloth is continuously rotated under the action of the transmission wheel, so that the part corresponding to the liquid inlet channel is filtered, and the part separated from the liquid inlet channel is cleaned under the action of the filter cloth cleaning mechanism. Filtration and cleaning can be carried out at the same time, and there is no need to stop the machine to clean the filter cloth, which is conducive to continuous liquid removal and improves efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic structural diagram of a liquid impurity separation device provided by an embodiment of the present invention;

Fig. 2 is a schematic diagram of the assembly of the liquid inlet channel and the sealing strip provided by the embodiment of the present invention;

Fig. 3 is the assembly diagram of sealing strip and filter cloth provided by the embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a static hollow shaft provided by an embodiment of the present invention;

Fig. 5 is a structural schematic diagram of a filter cloth tensioning device provided by an embodiment of the present invention;

Among them, in Figure 1-Figure 5:

Main body 101; input pipe 102; liquid inlet channel 103; sealing strip 104; fixing member 34; static hollow shaft 105; opening 151; outlet 152; driving wheel 106; driven wheel 162; filter cloth 107; slag scraping plate 181; air jet Head 182; water spray head 183; filter cloth tensioning device 109; tensioning lever 191; roller 192; pressure stabilizing cylinder 193;

detailed description

The embodiment of the invention discloses a liquid impurity separation device. The filter cloth is ring-shaped and can be continuously rotated during the application process to realize simultaneous filtering and cleaning without stopping the machine to clean the filter cloth, which facilitates continuous liquid impurity removal and improves efficiency.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1-Fig. 5, the embodiment of the present invention provides a kind of liquid impurity separating device, and it comprises liquid inlet channel 103, transmission wheel and filter cloth cleaning mechanism, and the top of liquid inlet channel 103 is provided with this inlet channel 103 conveying The input pipe 102 of the liquid to be removed, the opening at the bottom of the liquid inlet channel 103, and the bottom of the channel is covered with filter cloth 107; the filter cloth 107 is annular; In the ring formed by the filter cloth 107, the corresponding "outside" means outside the ring formed by the filter cloth 107), and is used to drive the filter cloth 107 to rotate, so that the filter cloth 107 continuously moves along the bottom of the liquid inlet channel 103; The cleaning mechanism is used to clean up impurities on the filter cloth 107 not corresponding to the bottom of the liquid inlet channel 103 during the rotation of the filter cloth 107 .

In the above-mentioned liquid impurity separation device, the filter cloth 107 is continuously rotated under the action of the transmission wheel, so that the part corresponding to the liquid inlet channel 103 performs filtering work, and the part detached from the liquid inlet channel 103 is under the action of the filter cloth cleaning mechanism. Cleaning realizes filtering and cleaning at the same time, without stopping the machine to clean the filter cloth 107, which is beneficial to continuous liquid removal and improves efficiency.

In addition, in the application of the liquid impurity separation device provided by the embodiment of the present invention, the filter cloth 107 rotates, causing the liquid to be removed to generate a strong steady flow, which promotes the contact and renewal of the liquid to be removed with air, and further dissolves the impurity in the liquid. The concentration of oxygen is greatly increased, up to 3mg/L-9mg/L.

Furthermore, the liquid impurity separation device provided by this embodiment has a small footprint, low operating costs, and a wide range of applications (it can be applied to the solid-liquid separation of raw sewage in sewage plants, the separation of mud and water in biological pools in sewage plants, the separation of feces in household sewers, rivers, etc.) Separation of algae in lakes, solid-liquid separation of wastewater in food processing plants, separation of slag in mining wastewater, etc.).

Preferably, the above-mentioned liquid impurity separation device further includes a plurality of runners, the runners are arranged under the liquid inlet channel 103, and the runners are in tangential contact with the filter cloth 107; the runners can generate negative pressure during rotation. During application, the runner rotates and stirs the gas under the filter cloth 107 to form a negative pressure, which facilitates a large amount of liquid to be removed to pass through the filter cloth 107 quickly, which not only increases the amount of filtered liquid, but also improves the filtration efficiency. The rotation direction of the above-mentioned runner can be set to be the same as the rotation direction of the transmission wheel, and can also be set to be opposite to the rotation direction of the transmission wheel. In addition, the range of the tangential speed of the runner is set to 0.8m/s-8m/s.

In addition to the method of setting the runner to form negative pressure, the above-mentioned liquid impurity separation device can also be set to include a plurality of static hollow shafts 105, as shown in Figure 4, the contact surface between the static hollow shafts 105 and the filter cloth is provided with openings 151, an outlet 152 is provided on its end face, and it is used to suck the liquid through the conduction between the opening and the outlet during application, thereby forming a negative pressure, which is convenient for the liquid to be removed to pass through the filter cloth 107 in a large amount and quickly, which not only increases the amount of filtered liquid, And improve the filtration efficiency.

In the liquid impurity separation device provided in this embodiment, a negative pressure can be formed under the filter cloth, which can effectively separate impurities such as sludge, sand, oil, etc. in the liquid to be removed within 10 seconds, with high efficiency.

The first end of the bottom of the above-mentioned liquid inlet channel 103 is higher than the second end; the part of the filter cloth 107 corresponding to the bottom of the channel has an inclined flat plate structure. The above-mentioned first end and second end are two opposite parts on the water inlet ditch, and the direction from the first end to the second end is parallel to the moving direction of the part corresponding to the bottom of the ditch on the filter cloth 107 .

In the liquid impurity separation device provided in this embodiment, the part corresponding to the bottom of the canal on the filter cloth 107 is inclined, which is beneficial to the liquid to be removed evenly distributed on the whole canal bottom of the liquid inlet canal 103, thereby making full use of the filter cloth 107 and the bottom of the canal. The corresponding part of the bottom of the canal is filtered.

Specifically, the angle between the part of the filter cloth 107 corresponding to the bottom of the canal and the horizontal direction is α, and the angle range of α is 0°-60°.

In the liquid impurity separation device provided in the above embodiments, the filter cloth cleaning mechanism includes a scraper 181, an air flushing system and a water flushing system; the scraper 181 is against the outside of the filter cloth 107; the air flushing system is located on the inside of the filter cloth 107 , and is used to spray gas to the filter cloth 107 in a direction toward the outside of the filter cloth 107; the water flushing system is used to spray water to the filter cloth 107. Preferably, the water flushing system is located inside the filter cloth 107 and used to spray water toward the filter cloth 107 toward the outside of the filter cloth.

Preferably, in the above-mentioned liquid impurity separation device, the filter cloth 107 is rotated and detached from the liquid inlet channel 103, and then washed by the air flushing system, and then flushed by the water flushing system.

Specifically, the above-mentioned air flushing system includes at least two air spray heads 182, and each air spray head 182 is arranged at intervals; the above-mentioned water flushing system includes at least two water spray heads 183, and each water spray head 183 is arranged at intervals; the above-mentioned slag scraper 181 It is located between two adjacent air spray heads 182, as shown in FIG. 1 .

In the above-mentioned liquid impurity separation device, the two sides of the liquid inlet channel 103 (the two sides are the two sides along the first direction on the liquid inlet channel 103, and the first direction is perpendicular to the direction from the first end to the second end of the liquid inlet channel 103 , and the first direction is vertical along the direction of the conveying filter residue of filter cloth 107) is fixed with sealing strip 104, and sealing strip 104 is offset with filter cloth 107, and sealing strip 104 is along the conveying direction of filter cloth 107 (that is filter cloth 107 transports filter residue direction) layout. The sealing strip 104 is preferably configured to be fixed on the liquid inlet channel 103 by a fixing member 34 .

Further, the end face of the sealing strip 104 that is used to abut against the filter cloth 107 is a circular arc surface, so as to avoid a large amount of leakage of the liquid to be removed from the gap between the liquid inlet channel 103 and the filter cloth 107, and prevent the sealing strip 104 from contacting the filter cloth 107. The friction of the cloth 107 is too large to prevent the filter cloth 107 from being damaged and to make the filter cloth 107 rotate smoothly. The above-mentioned sealing strip 104 is made of wear-resistant and smooth material, such as ceramic sealing strip 104 , stainless steel sealing strip 104 or rubber sealing strip 104 .

Specifically, in the above-mentioned liquid impurity separation device, the transmission wheel includes a driving wheel 106 and a driven wheel 162, wherein, there is one driving wheel 106 and a plurality of driven wheels 162; the tangential speed range of the driving wheel 106 is 0.01m/s- 1.7m/s. The driving wheel 106 is arranged at the first end of the liquid inlet channel 103 .

Preferably, the above-mentioned liquid impurity separation device also includes a filter cloth tensioning device 109 and a filter cloth correction device 110, the filter cloth tensioning device 109 is used to tighten the filter cloth 107 from the inner side of the filter cloth 107; the filter cloth correction device 110 is used to Adjust the position of the filter cloth 107 on the transmission wheel to ensure that the filter cloth 107 can cover the bottom of the liquid inlet channel 103 accurately and reliably.

The above-mentioned filter cloth tensioning device 109 includes a tensioning lever 191, the middle part of the tensioning lever 191 is provided with a hinged installation point, and the first end of the tensioning lever 191 is provided with a roller 192 that can rotate around its own axis, and the roller 192 is connected to the filter cloth. The cloth 107 offsets; the other end of the tensioning lever 191 is connected with the piston rod of the pressure stabilizing cylinder 193; when the piston rod of the stabilizing cylinder 193 is doing telescopic movement, the tensioning lever 191 is driven to rotate around its hinged mounting point, thereby adjusting the roller 192 against the tension The extent of the filter cloth 107 makes the filter cloth 107 tense or loose. The above-mentioned filter cloth deviation correcting device 110 adopts an existing deviation correcting device.

The above-mentioned liquid impurity separation device also includes a liquid collection tank 111 and a waste collection tank 112; the liquid collection tank 111 is arranged below the liquid inlet channel 103, and is used to hold the liquid filtered by the filter cloth 107; the waste collection tank 112 is used to collect the filter cloth for cleaning The impurities removed by the mechanism, and the liquid leaked from the gap between the filter cloth 107 and the bottom of the liquid inlet channel 103. Since each system in the filter cloth cleaning machine is arranged at intervals, in order to facilitate collection, the waste collection tank 112 in the above scheme includes two, one of which is used to collect the waste residue cleaned by the scraper plate 181 and the first air spray head 183, and the other is arranged on the The bottom of the liquid collection tank 111 is used to collect the remaining air nozzles 182 , the waste residue cleaned by the water flushing system, and the liquid leaked from the gap between the filter cloth 107 and the bottom of the liquid inlet channel 109 . Of course, the bottom of the above-mentioned waste collection tank 112 is provided with a discharge port. Furthermore, in order to facilitate the discharge of waste residue, a Roots blower is connected to the discharge port of the waste collection tank 112 . In addition, a liquid discharge port is provided at the bottom of the liquid collection tank 111 .

Above-mentioned filter cloth 107 can be arranged as single layer, preferably is arranged as multi-layer, wherein is positioned at outside, and is used for one deck filter screen that is used for directly contacting with sealing strip 104 as surface layer, and the rest is inner layer, and the aperture of surface layer is preferably set to not smaller than the pore size of the inner layer. In addition, when the filter cloth is arranged in multiple layers, each layer needs to be fixedly connected, preferably sewn with polytetrafluoroethylene thread.

Further, the above-mentioned liquid impurity separation device also includes a main body 101, the above-mentioned liquid inlet channel 103, a transmission wheel, a filter cloth cleaning mechanism, a runner or a static hollow shaft 105, a filter cloth tensioning device 109, a filter cloth correction device 110, a set The liquid tank 111 and the waste collection tank 112 are respectively assembled on the main body 101 . Support feet are fixed on the main body 101 .

The following is a specific experiment introduction:

1. In the impurity separation device, the inclination angle α of the part corresponding to the bottom of the liquid inlet channel 103 on the filter cloth 107 is set to 20°; the tangential speed of the driving wheel 106 is set to 1m/s; the sealing strip 104 is made of stainless steel sealing strip 104; the runner is used, and the tangential velocity of the runner is set to 4m/s; the filter cloth 107 is set to a double layer, the surface aperture is 100um, and the inner aperture is selected respectively from 10um, 20um, 30um, 40um, 50um, and 80um to test, It can be seen that the filtration of suspended solids in the liquid to be removed is as follows

2. In the impurity separation device, the inclination angle α of the part of the filter cloth 107 corresponding to the bottom of the liquid inlet channel 103 is set to 30°; the tangential speed of the driving wheel 106 is set to 1.7m/s; the sealing strip 104 is sealed with ceramics Article 104: apply static hollow shaft; the filter cloth 107 is set to three layers, the surface layer aperture is 150um, the innermost inner layer is set to be the same as the surface layer aperture, and the middle inner layer aperture is respectively selected as 10um, 20um, 30um, 40um , 50um, 80um to test, it can be seen that the filtration of activated sludge in the liquid to be removed is as follows

3. In the impurity separation device, the inclination angle α of the part of the filter cloth 107 corresponding to the bottom of the liquid inlet channel 103 is set to 45°; the tangential speed of the driving wheel 106 is set to 0.5m/s; the sealing strip 104 is sealed with stainless steel Bar 104; use the runner, the rotation direction of the runner is set to be opposite to the rotation direction of the driving wheel 106, and the tangential speed is 0.01m/s; the filter cloth 107 is set to a single layer, and the aperture of the filter cloth 107 is selected 100um, 50um and 18um test, it can be seen that the filtration of suspended particles in the liquid to be removed is as follows

4. In the impurity separation device, the inclination angle α of the part corresponding to the bottom of the liquid inlet channel 103 on the filter cloth 107 is set to 60°; the tangential speed of the driving wheel 106 is set to 1.5m/s; the sealing strip 104 is sealed with stainless steel Bar 104; use the runner, and the rotation direction of the runner is set to be the same as the rotation direction of the driving wheel 106, and the tangential speed is 8m/s; the filter cloth 107 is set to a single layer, and the aperture of the filter cloth 107 is selected 100um, 800um and Tested at 1500um, we can see that the concentration of green algae in the liquid before and after filtration changes as shown in the table below

5. In the impurity separation device, the inclination angle α of the part of the filter cloth 107 corresponding to the bottom of the liquid inlet channel 103 is set to 30°; the tangential speed of the driving wheel 106 is set to 1.3m/s; the sealing strip 104 is sealed with rubber Article 104; adopt to stand still on the hollow shaft; the filter cloth 107 is set as a single layer, and the aperture of the filter cloth 107 is respectively selected as 100um, 500um, and 1000um for testing. It can be seen that the concentration of feces before and after liquid filtration changes as shown in the following table

It can be seen from the above 5 tests that this embodiment has good impurity removal effects on various impurities in the liquid.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (11)

1. a liquid impurity segregation apparatus, it is characterised in that including:

Feed liquor canal, being arranged over of described feed liquor canal treats the input pipe of remove impurity liquid, described feed liquor canal to the conveying of described feed liquor canal Canal bottom opening, and be covered with filter cloth at the bottom of described canal；Described filter cloth is annular；

Transmitting wheel, the described wheel that transmits supports in the described filter cloth of annular, and is used for driving described filter cloth to rotate, so that described filter cloth Constantly move along at the bottom of the canal of described feed liquor canal；

Filter cloth cleaning mechanism, described filter cloth cleaning structure in described filter cloth rotation process, clear up on it not with described enter The impurity of part corresponding at the bottom of liquid gool.

Liquid impurity segregation apparatus the most according to claim 1, it is characterised in that also include multiple runner, described runner It is arranged on below described feed liquor canal, and described runner is tangent with described filter cloth contacts；Described runner can be in rotation process Produce negative pressure；The tangential velocity scope of described runner is set to 0.8m/s-8m/s；Or

Also include that multiple standing quill shaft, described standing quill shaft are arranged on below described feed liquor canal, and are affixed with described filter cloth； On described standing quill shaft, the contact surface with filter cloth is provided with opening, and its end face arranges outlet, for by described opening and described The conducting of outlet realizes pumping liquid, thus forms negative pressure.

Liquid impurity segregation apparatus the most according to claim 1, it is characterised in that the first end at the bottom of canal in described feed liquor canal Higher than the second end；The plate-like structure that part corresponding with at the bottom of described canal on described filter cloth is inclined.

Liquid impurity segregation apparatus the most according to claim 3, it is characterised in that corresponding with at the bottom of described canal on described filter cloth The angular range that angle is α, α in part same level direction be 0 °-60 °.

Liquid impurity segregation apparatus the most according to claim 1, it is characterised in that described filter cloth cleaning mechanism includes scraping slag Plate, gas flushing system and water rinse-system；Described scum board offsets with the outside of described filter cloth；Described gas flushing system is positioned at institute State the inner side of filter cloth, and for spraying gas to described filter cloth along the direction outside described filter cloth；Described water rinse-system is used In to described filter cloth jet water course.

Liquid impurity segregation apparatus the most according to claim 5, it is characterised in that after described filter cloth turns over described feed liquor canal First it is rinsed by described gas flushing system, then is rinsed by described water rinse-system.

Liquid impurity segregation apparatus the most according to claim 1, it is characterised in that the both sides of described feed liquor canal are fixed respectively There are sealing strip, described sealing strip to offset with described filter cloth, and described sealing strip is along the direction cloth transmitting filtering residue of described filter cloth Put.

Liquid impurity segregation apparatus the most according to claim 7, it is characterised in that be used for and described filter on described sealing strip The end face that cloth offsets is arc surface.

Liquid impurity segregation apparatus the most according to claim 1, it is characterised in that described transmission wheel include drivewheel and from Driving wheel, and the tangential velocity scope of described drivewheel is 0.01m/s-1.7m/s.

Liquid impurity segregation apparatus the most according to claim 1, it is characterised in that also include filter cloth tensioner and filter Cloth deviation correcting device, described filter cloth tensioner is for by filter cloth described in the inner side stretching of described filter cloth；Described filter cloth correction device For adjusting described filter cloth in the described position transmitted on wheel.

11. liquid impurity segregation apparatuss according to claim 1, it is characterised in that also include collecting tank and the useless groove of collection；Institute State collecting tank and be arranged on below described feed liquor canal, for containing the liquid through described filter-cloth filtering；Described collection gives up groove for collecting The impurity that described filter cloth cleaning mechanism is removed, and the liquid revealed by gap between at the bottom of the canal of described filter cloth and described feed liquor canal Body.