Slag salvaging drum microfilter

Abstract

The invention discloses a slag salvaging rotary drum microfilter in the technical field of microfilters, which comprises a liquid inlet tank, a clear liquid tank and a spraying mechanism, a rotary drum filtering mechanism is arranged at the upper part of a cavity of the clear liquid tank, and the rotary drum filtering mechanism comprises a driving mechanism, a roller main body, a filter screen, a slag diversion trench and a slag salvaging hopper; the driving mechanism is used for driving the roller body to rotate, the roller body is of a cylindrical structure or a polygonal prism structure, one end of the roller body is a closed end, the other end of the roller body is an open end, the filter screen wraps the peripheral surface of the roller body, and the spraying mechanism is arranged above the roller body and used for cleaning the filter screen. The dreg guide groove is positioned above the inner cavity of the roller main body and is obliquely arranged; the rotary drum filtering mechanism is provided with the dross collecting hopper which can be used for fishing materials which are easy to precipitate, relatively high in content and larger in particle size than filter meshes, such as filtrate which is filtered by a sludge dewatering machine and contains more solid substances, and the application range is wide.

Description

Technical Field

[0001] The invention relates to the technical field of microfilters, in particular to a slag drum microfilter. Background Art

[0002] The rotary drum microfilter is a widely used equipment for sewage treatment and solid-liquid separation, especially in aquaculture. It can effectively filter impurities such as leftover bait and feces in aquaculture water. Its working principle is that impurities enter the drum, and the filter on the drum plays a filtering role, intercepting solid particles outside the filter, and clear water flows out of the drum through the filter, thereby achieving solid-liquid separation. As solid particles accumulate on the inner wall of the drum, the drum will rotate regularly, and the filter will be flushed through the backwashing system, and the solid particles will be discharged in time through the diversion groove to maintain the continuous operation of the equipment.

[0003] For example, Chinese patent application number CN201920706993.2, the specific content is: a slag drum microfilter, belonging to the field of microfilters, including a base, the top of the base is connected to a support column, and both sides of the top of the base are provided with supporting wheels, the top of the support column is connected to a frame, and one side of the frame is provided with a connecting block, the inside of the connecting block is provided with a groove, and the inside of the groove is provided with a moving block, the outside of the moving block is connected to a water pipe, and one end of the water pipe is connected to a nozzle, and one side of the connecting block is located on the outside of the frame. A cylinder is installed. The invention realizes that when the microfilter is running, the cylinder can push the moving block to move inside the groove through the provided cylinder, frame, connecting block, groove, moving block, water pipe, and nozzle, so that the water pipe and the nozzle move. At this time, the moving block is connected to the water pump through a water pipe, so that the nozzle can move to spray water, and the filter can be moved for cleaning, so as to expand the cleaning area of ​​the filter and make the cleaning effect of the screen better. This slag drum microfilter is just a traditional drum microfilter that solves the problem of spraying, and there are still the following problems

[0004] 1. Narrow treatment objects: It can only be used to treat fish feces, algae and other small particles, suspended substances with small content.

[0005] 2. The circulating water is used for spraying, and the circulating water is filtered only once. Therefore, if there are many impurities in the filtrate and it is used for spraying, the spray pipes and nozzles are easy to be blocked, which affects the spraying and backwashing effects and leads to a vicious cycle.

[0006] 3. Without using a reel, it is relatively difficult to fix and install the mesh belt, and the mesh belt cannot be tightened, which affects the flushing effect; it may even form certain holes.

[0007] This type of rotary drum microfilter has a narrow application range. The circulating water is used for spraying, and the spraying effect is affected by the circulating water quality. Moreover, the spraying is a reciprocating moving spray, and the cleaning effect on the slag is poor.

[0008] Based on this, the present invention designs a slag drum microfilter to solve the above problems. Summary of the invention

[0009] The object of the present invention is to provide a slag-removing drum microfilter to solve the problems of the drum microfilter proposed in the above background technology, such as narrow application range, circulating water is used for spraying, the spraying effect is affected by the circulating water quality, and the spraying is a reciprocating moving spray, which has a poor cleaning effect on the slag.

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a slag drum microfilter, comprising a liquid inlet tank, a clear liquid tank and a spray mechanism, a drum filter mechanism is provided on the upper part of the clear liquid tank cavity, and the drum filter mechanism comprises a driving mechanism, a drum body, a filter screen, a slag guide groove and a slag bucket; the driving mechanism is used to drive the drum body to rotate, the drum body is a cylindrical structure or a polygonal prism structure, and one end of the drum body is a closed end and the other end is an open end, the filter screen is coated on the outer circumferential surface of the drum body, the spray mechanism is arranged above the drum body, and is used to clean the filter screen, the slag guide groove is located above the inner cavity of the drum body, and is inclined, and the slag guide groove is used to guide the slag to flow from a high place to a low place; a slag bucket distributed in a circumferential array is provided on the inner cavity wall of the drum body, and is used to scoop up the slag at the bottom of the drum body, the liquid inlet tank is placed at the front end of the clear liquid tank, and the open end of the drum body is connected to the liquid inlet tank through a sealing connection mechanism.

[0011] Preferably, the drum body includes a sealing plate at the front end and an opening flange at the rear end, the sealing plate at the front end and the opening flange at the rear end are on the same center line, a plurality of pillars are arranged in a circular array between the outer edges of the sealing plate and the opening flange, and a supporting flange is also arranged between the middle parts of each group of pillars; the filter screen is wrapped around the outside of each group of pillars, and a tensioning shaft is arranged on one side; the distance from the outermost edge of the tensioning shaft to the center line is greater than or equal to the distance from the outermost edge of the pillar to the center line; the slag bucket is fixedly arranged on the supporting flange, and the two ends are respectively fixedly connected to the sealing plate at the front end and the opening flange at the rear end.

[0012] Preferably, the tensioning shaft is a square structure, comprising an upper slat, a lower slat and a pressure strip placed between them with equal width; screw holes are evenly arranged on the upper slat, and the pressure strip is fixed between the upper slat and the lower slat by means of screws, and the two ends of the filter are placed under the pressure strip; double-hole gaskets are also provided at both ends of the upper slat and the lower slat, and the upper slat and the lower slat are fixed through the double-hole gaskets.

[0013] Preferably, a ratchet is installed at one end of the upper slat and the lower slat, and a pawl hinged to the end face of the drum body is provided on the ratchet mounting side. The two ends of the double-hole gasket respectively pass through the tensioning shaft holes on the sealing plate and the opening flange to facilitate the rotation adjustment of the tensioning shaft.

[0014] Preferably, a partition is shared between the liquid inlet tank and the clear liquid tank, and the sealing connection mechanism includes a drum steel plate and a supporting steel plate. The opening flange at the rear end is mounted on the hollow part of the partition at the corresponding position, and an interference fit is formed between the opening flange and the partition; by locking the drum steel plate on the opening flange, and setting a supporting steel plate locked by bolts on the hollow part of the partition, the opening flange abuts against the supporting steel plate, and the supporting steel plate can support the drum steel plate, so that the interference fit is tighter, thereby ensuring the sealing effect. The above two sealing connection mechanisms can also be set together to better ensure the sealing effect.

[0015] Preferably, a partition is shared between the liquid inlet tank and the clear liquid tank, and the sealing connection mechanism includes a support guide wheel installed under the roller body, the support guide wheel is fixedly connected to the inner cavity wall of the clear liquid tank, and supports the roller body to achieve concentric movement by contacting the outer ring of the support opening flange or the outer ring of the sealing plate; the sealing connection mechanism also includes a silicone seal extending from the partition opening into the roller body, and the inner ring of the opening flange at the open end of the roller body is tightly matched with the silicone seal; the rubber seal is fixed by a silicone pressure plate by bolts to ensure the sealing effect.

[0016] Preferably, a slag trough is provided at the rear ends of the liquid inlet trough and the clear liquid trough, and the slag in the drum filter mechanism flows into the slag trough through the respective slag guide troughs, and a self-priming pump is provided at the bottom of the slag trough.

[0017] Preferably, one or more groups of clear liquid tanks are provided behind the clear liquid tank and connected thereto, and each group of clear liquid tanks is provided with a rotary drum filter mechanism of the same structure as the above, and liquid is transported through the same sealing connection mechanism as the above.

[0018] Preferably, it also includes a main pipeline and a liquid pump, the spray mechanism is connected to the liquid outlet of the liquid pump through the main pipeline, the main pipeline is connected to any clear liquid tank, and a valve is provided at the inlet end of the spray mechanism to control the frequency of spraying liquid, the spraying water pressure and the duration.

[0019] Preferably, the driving mechanism is a driving motor that independently drives each group of roller bodies, or is driven by a sprocket chain transmission structure or a belt transmission structure, and the transmission structure is connected between each group of roller bodies.

[0020] Preferably, the bottoms of the clear liquid tank and the liquid inlet tank are both provided with drain ports, and the side walls of the liquid inlet tank and the slag tank are both provided with overflow ports for draining excess liquid.

[0021] Preferably, liquid level meters are provided in the clear liquid tank, the liquid inlet tank and the slag tank for real-time monitoring of the liquid level.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The rotary drum filter mechanism of the present invention is provided with a slag collecting bucket, which can be used to scoop up materials that are easy to precipitate and have relatively high content and whose particles are larger than the filter mesh, such as the filtrate containing more solid matter filtered out by a sludge dewatering machine, and has a wide range of uses.

[0024] 2. The present invention uses multi-stage filtration of two or more rotary drum filter mechanisms, which not only ensures that the filtrate finally filtered out is cleaner, but also ensures that the filter screen is backwashed more cleanly when it is used to spray the filter screen, reducing the risk of clogging.

[0025] 3. The present invention also regards the slag trough as a component of the structure, and collects the slag and transports it back to the sludge dewatering equipment for reprocessing. On the one hand, it will not cause waste of flocculants, and on the other hand, it allows the entire system to achieve sustainable automatic operation.

[0026] 4. The ratchet pawl structure is used in the present invention to adjust the tension of the filter screen, which can facilitate the installation of the filter screen by the staff and can also ensure that the filter screen can be closely attached to the outer periphery of the drum body, which is beneficial to avoid leakage of residues and improve the stability of the machine.

[0027] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0029] Figure 1 It is a schematic diagram of the structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of the sealing connection mechanism of the present invention including a silicone seal;

[0031] Figure 3 This is a schematic diagram of the structure of part A of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure of part B of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of the drum steel plate included in the sealing connection mechanism of the present invention;

[0034] Figure 6 It is a structural schematic diagram of the D part of the present invention;

[0035] Figure 7 This is a schematic structural diagram of the main drum body of the present invention;

[0036] Figure 8 This is a schematic diagram of the main structure of the drum of the present invention;

[0037] Fig. 9 It is a schematic diagram of the tensioning shaft structure of the present invention. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-9 The present invention provides a technical solution of a slag drum microfilter: a slag drum microfilter, comprising a liquid inlet tank 1, a clear liquid tank 2 and a spray mechanism 3, a partition is shared between the liquid inlet tank 1 and the clear liquid tank 2, a drum filter mechanism 4 is arranged on the upper part of the cavity of the clear liquid tank 2, and the drum filter mechanism 4 comprises a driving mechanism 41, a drum body 42, a filter screen 43, a slag guide groove 44 and a slag bucket 45; the driving mechanism 41 is used to drive the drum body 42 to rotate, the drum body 42 is a cylindrical structure or a polygonal prism structure, and one end of the drum body 42 is a closed end, and the other end is At the open end, the filter screen 43 is coated on the outer peripheral surface of the drum body, the spray mechanism 3 is arranged above the drum body 42, and is used to clean the filter screen 43, the slag guide groove 44 is located above the inner cavity of the drum body 42, and is arranged obliquely, and the slag guide groove 44 is used to guide the slag to flow from a high place to a low place; the inner cavity wall of the drum body 42 is provided with a slag scoop 45 distributed in a circular array, which is used to scoop the slag at the bottom of the inner cavity of the drum body 42, the liquid inlet tank 1 is placed at the front end of the clear liquid tank 2, and the open end of the drum body 42 is connected to the liquid inlet tank 1 through a sealing connection mechanism.

[0040] Furthermore, the drum body 42 includes a front end sealing plate 421 and a rear end opening flange 422, the front end sealing plate 421 and the rear end opening flange 422 are on the same center line, a plurality of pillars 423 are arranged in a circular array between the outer edges of the sealing plate 421 and the opening flange 422, and a support flange 424 is also arranged between the middle parts of each group of pillars 423; the filter net bag 43 is covered on the outside of each group of pillars 423, and a tensioning shaft 425 is arranged on one side of the drum body 42; the distance from the outermost edge of the tensioning shaft 425 to the center line is greater than or equal to the distance from the outermost edge of the pillar 423 to the center line; the slag bucket 45 is fixedly arranged on the support flange 424, and the two ends are respectively fixedly connected to the front end sealing plate 421 and the rear end opening flange 422.

[0041] Furthermore, the tensioning shaft 425 is a square structure, comprising an upper slat 4251 and a lower slat 4252 of equal width and a pressure strip 4253 placed therebetween; screw holes are evenly arranged on the upper slat 4251, and the pressure strip is fixed between the upper slat 4251 and the lower slat 4252 by means of screws, and both ends of the filter 43 are placed under the pressure strip 4253; double-hole gaskets 4254 are also provided at both ends of the upper slat 4251 and the lower slat 4252, and the upper slat 4251 and the lower slat 4252 are fixed through the holes of the double-hole gasket 4254; the thickness of the upper slat 4251 and the lower slat 4252 after combination is consistent with their width.

[0042] Furthermore, a ratchet 4255 is installed at one end of the upper slat 4251 and the lower slat 4252, and a pawl 4256 hinged on the end face of the drum body 42 is provided on the mounting side of the ratchet 4255. The two ends of the double-hole gasket 4254 respectively pass through the tensioning shaft holes on the sealing plate 421 and the opening flange 422 to facilitate the rotation adjustment of the tensioning shaft 425. The tensioning adjustment function of the ratchet 4255 and the pawl 4256 can facilitate the installation of the filter screen 43 by the staff, and can also ensure that the filter screen 43 can be tightly attached to the outer periphery of the drum body 42, which is beneficial to avoid leakage of residue and improve the stability of the machine.

[0043] Furthermore, the sealing connection mechanism includes a drum steel plate 5 and a supporting steel plate 6, and the opening flange 422 at the rear end is mounted on the hollow part of the partition at the corresponding position, and an interference fit is formed between the opening flange 422 and the partition; by locking the drum steel plate 5 on the opening flange, and arranging the supporting steel plate 6 locked by bolts in the hollow part of the partition, the opening flange 422 abuts against the supporting steel plate 6, and the supporting steel plate 6 can support the drum steel plate 5, so that the interference fit is tighter, thereby ensuring the sealing effect.

[0044] Furthermore, the sealing connection mechanism includes a support guide wheel 7 installed under the roller body 42, and the support guide wheel 7 is fixedly connected to the inner cavity wall of the clear liquid tank 2, and supports the roller body 42 to achieve concentric movement by contacting the outer ring of the support opening flange 422 or the outer ring of the sealing plate 421; the sealing connection mechanism also includes a silicone seal 8 extending from the partition opening into the roller body 42, and the inner ring of the opening flange 422 at the open end of the roller body 42 is tightly matched with the silicone seal 8; the silicone seal 8 is fixed by the silicone pressure plate 9 by bolts to ensure the sealing effect.

[0045] Furthermore, a slag trough 10 is provided at the rear ends of the liquid inlet trough 1 and the clear liquid trough 2, and the slag in the drum filter mechanism 4 flows into the slag trough 10 through the respective slag guide troughs 44, and a self-priming pump 11 is provided at the bottom of the slag trough 10.

[0046] Furthermore, one or more groups of clear liquid tanks 2 are provided behind the clear liquid tank 2 and connected thereto, and each group of clear liquid tanks 2 is provided with a rotary drum filter mechanism 4 of the same structure as the aforementioned, and liquid is transported through the same sealing connection mechanism as the aforementioned.

[0047] Furthermore, it also includes a main pipeline 12 and a liquid pump 13. The spray mechanism 3 is connected to the liquid outlet of the liquid pump 13 through the main pipeline 12. The main pipeline 12 is connected to any clear liquid tank 2. A valve 14 is provided at the inlet end of the spray mechanism 3 for controlling the frequency of spraying liquid and the spraying water pressure and duration.

[0048] Furthermore, the driving mechanism 41 is a driving motor that independently drives each group of roller bodies 42, or is driven by a sprocket chain transmission structure or a belt transmission structure. The transmission structure is connected between each group of roller bodies 42 to drive each group of roller bodies 42 to rotate.

[0049] Furthermore, the bottoms of the clear liquid tank 2 and the liquid inlet tank 1 are both provided with drain ports 15, and the side walls of the liquid inlet tank 1 and the slag tank 10 are both provided with overflow ports 16 for draining excess liquid.

[0050] Furthermore, liquid level gauges 17 are provided in the clear liquid tank 2, the liquid inlet tank 1 and the slag tank 10 for real-time monitoring of the liquid level.

[0051] Furthermore, the spray mechanism is a reciprocating spray head, which is realized by a belt or screw-type reciprocating slider.

[0052] A specific application of this embodiment is: the present invention is a slag drum microfilter, when in use,

[0053] The liquid flows in from the inlet of the liquid inlet tank 1, passes through the hollow opening of the partition, and flows into the drum filter mechanism 4. The relatively clean filtrate is filtered into the clear liquid tank 2 below through the filter screen 43 of the drum filter mechanism 4. The slag precipitated at the bottom of the drum filter mechanism 4 is scooped up by the slag scoop 45 and transferred to the upper part. After being sprayed and flushed by the weight of the slag and the spray mechanism 3, it flows into the slag guide groove 44 and converges into the slag tank 10.

[0054] The front clear liquid tank 2 is connected to the inlet of the rear drum filter mechanism 4. The front clear liquid tank is equipped with high and low liquid level gauges. When the clear liquid reaches a high level, it indicates that the rear drum filter mechanism 4 is blocked or overloaded. The spray mechanism 3 above the rear drum filter mechanism is turned on to spray liquid until the liquid level drops to a low level. The slag trapped at the bottom of the rear drum filter mechanism 4 is scooped up by the slag bucket 45 and transferred to the upper part. After being flushed by the weight of the slag and the spray mechanism 3, it flows into the slag diversion trough 44 and converges into the slag tank 10.

[0055] After the clear liquid in the front clear liquid tank 2 flows through the inner cavity of the rear drum filter mechanism 4, the cleaner filtrate is filtered into the rear clear liquid tank 2 through the filter screen 43 of the drum filter mechanism 4 arranged in the rear clear liquid tank 2, and most of the clear liquid is discharged through the clear liquid discharge port slightly higher than the liquid pump, and a part of the clear liquid is used as the spray liquid of the spray mechanism 3, and the spraying is implemented by controlling the liquid pump of the rear clear liquid tank 2.

[0056] The slag flowing out from the slag guide groove 44 of the front drum filter mechanism 4 and the rear drum filter mechanism 4 is collected in the slag trough 10, the bottom of the slag trough 10 is connected to the slag self-priming pump 11, and the slag trough 10 is also provided with a high and low liquid level gauge. When the slag reaches the high position of the slag trough 10, the slag self-priming pump 11 is started to extract it until the slag drops to the low position.

[0057] The filtrate in the slag tank 10 enters the dehydration system for dehydration treatment.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0059] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A slag drum microfilter, characterized in that: The utility model comprises a liquid inlet tank, a clear liquid tank and a spray mechanism. A rotary drum filter mechanism is provided on the upper part of the clear liquid tank cavity. The rotary drum filter mechanism comprises a driving mechanism, a drum body, a filter screen, a slag guide groove and a slag scoop; the driving mechanism is used to drive the drum body to rotate. The drum body is a cylindrical structure or a polygonal prism structure, and one end of the drum body is a closed end and the other end is an open end. The filter screen is coated on the outer peripheral surface of the drum body. The spray mechanism is arranged above the drum body for cleaning the filter screen. The slag guide groove is located above the inner cavity of the drum body and is arranged obliquely. The slag guide groove is used to guide the slag to flow from a high place to a low place; a slag scoop distributed in a circumferential array is arranged on the inner cavity wall of the drum body for scooping the slag at the bottom of the drum body. The liquid inlet tank is placed at the front end of the clear liquid tank, and the open end of the drum body is connected to the liquid inlet tank through a sealing connection mechanism.

2. A slag drum microfilter according to claim 1, characterized in that: The drum body includes a sealing plate at the front end and an opening flange at the rear end, the sealing plate and the opening flange are on the same center line, a plurality of pillars are arranged in a circular array between the outer edges of the sealing plate and the opening flange, and a supporting flange is arranged between the middle parts of each group of the pillars; the filter screen is coated on the outside of each group of pillars, and the drum body also includes a tensioning shaft arranged on one side; the slag bucket is fixedly arranged on the supporting flange, and the two ends are respectively fixedly connected to the sealing plate at the front end and the opening flange at the rear end.

3. A slag drum microfilter according to claim 2, characterized in that: The tensioning shaft body comprises an upper slat and a lower slat of equal width and a pressure strip placed therebetween; screw holes are evenly arranged on the upper slat, and the pressure strip is fixed between the upper slat and the lower slat by means of screws, and both ends of the filter are placed under the pressure strip; double-hole gaskets are also provided at both ends of the upper slat and the lower slat, and the upper slat and the lower slat are fixed through the double-hole gaskets; a ratchet is provided at one end of the upper slat and the lower slat, and a pawl hinged on the end face of the drum body is provided on the ratchet mounting side, and both ends of the double-hole gasket respectively pass through the tensioning shaft holes on the sealing plate and the opening flange, so as to facilitate the rotation adjustment of the tensioning shaft body.

4. The slag drum microfilter according to claim 1, characterized in that: A partition is shared between the liquid inlet tank and the clear liquid tank, and the sealing connection mechanism includes a drum steel plate and a supporting steel plate. The opening flange at the rear end is mounted on the hollow part of the partition at the corresponding position, and an interference fit is formed between the opening flange and the partition. By locking the drum steel plate on the opening flange, and arranging a supporting steel plate locked by bolts on the hollow part of the partition, the opening flange abuts against the supporting steel plate, and the supporting steel plate can support the drum steel plate, so that the interference fit is tighter, thereby ensuring the sealing effect.

5. The slag drum microfilter according to claim 1, characterized in that: A partition is shared between the liquid inlet tank and the clear liquid tank, and the sealing connection mechanism includes a supporting guide wheel installed under the roller body, and the supporting guide wheel is fixedly connected to the inner cavity wall of the clear liquid tank, and supports the roller body to achieve concentric movement by contacting the outer ring of the supporting opening flange or the outer ring of the sealing plate; the sealing connection mechanism also includes a silicone seal extending from the partition opening into the roller body, and the inner ring of the opening flange at the open end of the roller body is tightly matched with the silicone seal; the silicone seal is fixed by a silicone pressure plate through bolts to ensure the sealing effect.

6. A slag drum microfilter according to claim 4 or 5, characterized in that: A slag trough is arranged at the rear ends of the liquid inlet trough and the clear liquid trough, and the slag in the rotary drum filtering mechanism flows into the slag trough through the slag guide trough, and a self-priming pump is arranged at the bottom of the slag trough.

7. The slag drum microfilter according to claim 6, characterized in that: The rear end of the clear liquid tank is provided with one or more groups of clear liquid tanks connected thereto, each group of the clear liquid tanks is provided with a rotary drum filtering mechanism with the same structure as the above, and liquid is transported through the same sealing connection mechanism as the above.

8. The slag-removing drum microfilter according to claim 7, characterized in that: The driving mechanism is a driving motor that independently drives each group of roller bodies, or is driven by a sprocket chain transmission structure or a belt transmission structure, and the transmission structure is connected between each group of roller bodies.

9. The slag-removing drum microfilter according to claim 8, characterized in that: The bottom of the clear liquid tank and the liquid inlet tank are both provided with drain ports, and the side walls of the liquid inlet tank and the slag tank are both provided with overflow ports for draining excess liquid. The clear liquid tank, the liquid inlet tank and the slag tank are all provided with liquid level gauges for real-time monitoring of the liquid level.

10. The slag drum microfilter according to claim 9, characterized in that: It also includes a main pipeline and a liquid pump. The spray mechanism is connected to the liquid outlet of the liquid pump through the main pipeline. The main pipeline is connected to any of the clear liquid tanks. The inlet end of the spray mechanism is provided with a valve for controlling the frequency of spraying liquid, the spraying water pressure and the duration.

Images