A sludge ultra-high pressure filtration and desludging mechanism

By designing a sludge ultra-high pressure filtering and sludge removal mechanism including filter cage, filter cloth roll, water collection tank and other components, the problems of large area, high cost and complex operation in the sludge dehydration process in the prior art are solved, and efficient discharge of sludge filter slag and simplification of operation are achieved.

CN118702381BActive Publication Date: 2025-04-11SHANDONG HUAYI ENG TECH CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202410861981.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2025-04-11
Estimated Expiration
2044-06-28

AI Technical Summary

Technical Problem

The existing plate-frame filter presses occupy a large area, high cost, and complex operation in the process of dehydration of sludge, making it difficult to achieve efficient discharge of sludge filter slag.

Method used

A sludge ultra-high pressure filtering and sludge removal mechanism is designed, including a filter cage, filter cloth roll, water collection pool, slag filter pool, slag collection tank, cover plate, reversing roller and sludge scraper. Through the coordinated work of these components, the automatic discharge of sludge filter slag and continuous operation of filter cloth are realized.

Benefits of technology

The desilt mechanism can conveniently discharge the sludge filter slag in the filter cage, simplify the operation process, reduce costs, and improve the efficiency of sludge dehydration.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN118702381B_ABST
    Figure CN118702381B_ABST
Patent Text Reader

Abstract

The present invention relates to the field of sludge dewatering and filter pressing equipment, and in particular to a sludge ultra-high pressure filter desludging mechanism, comprising a filter cage and a filter cloth drum, the filter cloth drum is wound with filter cloth, a water collecting pool is provided at the bottom of the filter cage, and a filter residue pool is provided on one side of the water collecting pool; a lower section of a side wall of the filter cloth drum is formed with an openable and closable plate wall; the desludging mechanism also comprises a residue collecting tank arranged between the water collecting pool and the bottom of the filter cage, the discharge end of the residue collecting tank extends to the upper side of the filter residue pool, and the cover plate can switch between a state of shielding the residue collecting tank and a state of opening the residue collecting tank; the desludging mechanism also comprises a reversing roller arranged at the upper end of the plate wall, the reversing roller comprises a reversing roller bracket that can be moved laterally, and a roller body installed between the reversing rollers, and the filter cloth is bypassed by the outer side of the roller body, so that when the plate wall is opened, the reversing roller can drive the filter cloth to move to the outer side of the filter cage. The present invention can conveniently discharge the sludge residue after filter pressing in the filter cage, and effectively solves the existing problems.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the field of sludge dewatering filter pressing equipment, in particular to a sludge ultra-high pressure filter pressing and desludging mechanism. Background Art

[0002] For sludge carbonization treatment, drying and dehydration before the sludge enters the carbonization furnace is a key step. At present, sludge dehydration is mostly carried out by plate and frame filter presses. The existing plate and frame filter presses occupy a large area and require price adjustment agents during the filtration process, which increases the treatment cost.

[0003] The invention patent with application number 202010077042.0 discloses a deep sludge filter press dehydration shaft and dehydration method, which uses multiple stations to operate the filter press barrel in different processes and uses a vertical oil cylinder for ultra-high pressure filtration. When distributing the material, a liftable filter barrel support plate is set at the bottom of the filter press barrel for use.

[0004] Using this method requires repeatedly moving the filter press barrel and disassembling the filter cloth, which is a complicated process. Based on this, the applicant proposed an ultra-high pressure filter press device that can operate continuously at one workstation and can complete the removal work of sludge after filtration at a fixed workstation. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a sludge ultra-high pressure filtration and desludging mechanism, which can conveniently discharge the sludge residue after filtration in the filter cage, and effectively solve the existing problems.

[0006] In order to solve the above problems, the present invention provides a sludge ultra-high pressure filtration and desludging mechanism, comprising a filter cage and a filter cloth drum arranged on the upper side of the filter cage, the filter cloth drum is wound with filter cloth, the filter cage is provided with a compression chamber with an open top, the bottom of the filter cage is provided with a water collecting tank, and one side of the water collecting tank is provided with a filter residue tank; the lower section of one side wall of the filter cloth drum is formed with an openable and closable plate wall; the desludging mechanism also includes a residue collecting trough arranged between the water collecting tank and the bottom of the filter cage, the residue collecting trough can receive the filter residue dropped from the filter cage at the plate wall position, and the discharge end of the residue collecting trough extends The filter cage is provided with a cover plate, and the cover plate can switch between a state of shielding the slag collecting trough and a state of opening the slag collecting trough; the desludging mechanism also includes a reversing roller arranged at the upper end position of the plate wall, and the reversing roller includes a reversing roller bracket which can be moved laterally, and a roller body installed between the reversing rollers, and the filter cloth is bypassed by the outer side of the roller body, so that when the plate wall is opened, the reversing roller can drive the filter cloth to move to the outer side of the filter cage.

[0007] Furthermore, the reversing roller is installed on the plate wall, and the plate wall is slidably arranged on the filter cage so that the plate wall drives the reversing roller to move.

[0008] Furthermore, the mud removal mechanism also includes a scraper plate arranged on the lower side of the roller body, and at least one of the scraper plate and the reversing roller bracket is movably arranged so that the scraper plate and the roller body can be switched between the scraping position and the disengaged position; when the scraper plate and the reversing roller are in the scraping position, the scraper plate and the roller body clamp the filter cloth; when the scraper plate and the reversing roller are in the disengaged position, the scraper plate is separated from the filter cloth on the surface of the roller body.

[0009] Furthermore, the reversing roller bracket is movably installed on the plate wall, the reversing roller bracket is formed with a linkage part, and the filter cage is formed with a driving part on the upper side of the plate wall; the driving part and the linkage part are arranged so that when the plate wall moves to close the filter cage, the driving part drives the linkage part to drive the reversing roller bracket to move, so that the roller body and the scraper blade are switched to the disengaged position.

[0010] Furthermore, the reversing roller bracket is rotatably installed on the plate wall, the linkage part is configured as a linkage rod, the filter cage is provided with a connecting beam on the upper side of the plate wall, and the connecting beam forms the driving part; when the plate wall moves toward the driving part to close, the driving part of the connecting beam pushes the linkage rod to make the reversing roller bracket rotate upward, and the roller body is separated from the scraper plate; when the plate wall moves toward the outside of the filter cage to separate the linkage rod from the driving part of the connecting beam, the reversing roller bracket of the reversing roller rotates downward so that the roller body and the scraper plate clamp the filter cloth.

[0011] Furthermore, when the roller body abuts against the scraper blade, the rotation axis of the reversing roller bracket is lower than the rotation axis of the roller body.

[0012] Furthermore, the connecting beam is also formed with a guide roller, and the filter cloth passes around the reversing roller and then passes around the guide roller to extend upward; when the plate wall is closed, the reversing roller rotates upward so that the roller body and the guide roller clamp the filter cloth.

[0013] Furthermore, a feeding screw is provided in the slag collecting trough.

[0014] Furthermore, the trough wall of the slag collecting trough is inclined outward from bottom to top.

[0015] Furthermore, the cross section of the cover plate is arranged to be an inverted V-shape, and the mud removing mechanism also includes a telescopic rod for driving the cover plate to move.

[0016] The beneficial effect of the present invention is that the sludge residue after pressure filtration in the filter cage can be conveniently discharged, thus effectively solving the existing problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 It is a schematic side cross-sectional structure diagram of an embodiment of the present invention.

[0019] Figure 2 for Figure 1 A schematic diagram of the structure after the panel wall is opened in the illustrated embodiment.

[0020] Figure 3 for Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0021] Figure 4 for Figure 2 Schematic diagram of the local enlarged structure at point B in the middle.

[0022] Figure 5 for Figure 1 Side view of the filter cage in the panel position in the illustrated embodiment.

[0023] Among them: 1. filter cage; 101. plate wall; 102. connecting beam; 2. filter cloth drum; 3. filter cloth; 4. water collecting tank; 5. filter residue tank; 6. residue collecting trough; 7. feeding screw; 8. cover plate; 9. reversing roller; 901. reversing roller bracket; 902. roller body; 903. linkage part; 10. scraper; 11. driving part; 12. guide roller. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0025] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0026] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are only connected to form a whole through a connecting structure. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0028] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 may be combined in an appropriate manner in any one or more embodiments or examples.

[0029] In the present invention, if Figure 1-5As shown, a sludge ultra-high pressure filtration and desludging mechanism is provided, comprising a filter cage 1 and a filter cloth drum 2 arranged on the upper side of the filter cage 1, the filter cloth drum 2 is wound with a filter cloth 3, the filter cage 1 is provided with a compression chamber with an open top, the bottom of the filter cage 1 is provided with a water collecting pool 4, and one side of the water collecting pool 4 is provided with a filter residue pool 5; the lower section of one side wall of the filter cloth drum 2 is formed with an openable and closable plate wall 101; the desludging mechanism also includes a residue collecting trough 6 arranged between the water collecting pool 4 and the bottom of the filter cage 1, the residue collecting trough 6 can receive the filter residue dropped from the filter cage 1 at the position of the plate wall 101, and the discharge end of the residue collecting trough 6 extends to the filter residue pool 5 , so that the slag collecting trough 6 can transport the filter residue to the filter residue pool 5; the desludging mechanism also includes a cover plate 8 arranged between the slag collecting trough 6 and the filter cage 1, and the cover plate 8 can switch between a state of covering the slag collecting trough 6 and a state of opening the slag collecting trough 6; the desludging mechanism also includes a reversing roller 9 arranged at the upper end position of the plate wall 101, the reversing roller 9 includes a reversing roller bracket 901 that can move laterally and a roller body 902 installed between the reversing rollers 9, and the filter cloth 3 is bypassed by the outside of the roller body 902, so that when the plate wall 101 is opened, the reversing roller 9 can drive the filter cloth 3 to move to the outside of the filter cage 1.

[0030] When the desludging mechanism of the present invention is used, the filter cloth 3 is laid in an S shape in the filter cage 1, and the sludge to be filtered is placed between the filter cloths 3, and the filter pressing components (oil cylinder and pressure block) as in the existing patent are used for filtering. After the filtering is completed, the cover plate 8 is moved to the open state, the plate wall 101 is opened, and the roller body 902 of the reversing roller 9 is moved to the outside of the filter cage 1. At this time, the filter cloth reel 2 can be used to rewind the filter cloth 3. During the process of the filter cloth 3 moving toward the reversing roller 9, the sludge filtered on the filter cloth 3 is gradually discharged from the open position of the plate wall 101 to the slag collecting tank 6, and the sludge filtered is discharged. The sludge remaining on the surface of the filter cloth 3 further falls when passing through the reversing roller 9 under the influence of the bending deformation of the filter cloth 3 guided by the surface of the reversing roller 9. After the sludge on the surface of the filter cloth 3 is discharged from the open position of the plate wall 101, the reversing roller 9 is moved and reset to the inner side of the filter cage 1, and the plate wall 101 is closed to perform the next filter pressing.

[0031] In the illustrated embodiment, a further optimized configuration of the present invention is that the reversing roller 9 is mounted on the plate wall 101, and the plate wall 101 is slidably arranged on the filter cage 1, so that the plate wall 101 drives the reversing roller 9 to move. As shown in the figure, the movement of the reversing roller 9 can be synchronously completed during the process of opening the plate wall 101.

[0032] In the illustrated embodiment, the slidable arrangement of the panel wall 101 is further specifically described as shown in the figure. A slider is provided at the end of the panel wall 101. A guide rail can be provided through an external rack so that the end of the panel wall 101 can be slidably fitted on the guide rail. The movement of the panel wall 101 can be driven by an oil cylinder or an electric telescopic rod. For the sliding arrangement of the panel wall, other forms can also be adopted, such as using a gear rack mechanism or an electric telescopic rod to drive the panel wall to slide.

[0033] In a replaceable embodiment, the reversing roller 9 and the plate wall 101 can also be arranged as a separate structure, the reversing roller 9 is driven to move by a transversely arranged oil cylinder, and the plate wall 101 can be moved transversely or opened and closed in a direction perpendicular to the reversing roller 9.

[0034] In the illustrated embodiment, the further optimized setting of the present invention is that the demudging mechanism further includes a scraper blade 10 arranged at the lower side of the roller body 902, and at least one of the scraper blade 10 and the reversing roller bracket 901 is arranged to be movable so that the scraper blade 10 and the roller body 902 can be switched between the scraping position and the disengaged position; when the scraper blade 10 and the reversing roller 9 are in the scraping position, the scraper blade 10 and the roller body 902 clamp the filter cloth 3; when the scraper blade 10 and the reversing roller 9 are in the disengaged position, the scraper blade 10 is separated from the filter cloth 3 on the surface side of the roller body 902. As shown in the figure, by setting the scraper blade 10, when the filter cloth reel 2 rewinds the filter cloth 3, the scraper blade 10 can scrape and clean the sludge remaining on the surface side of the filter cloth 3, so as to prevent the filter cloth 3 from being wound on the filter cloth reel 2 and reduce the influence of the residual sludge on the winding of the filter cloth 3. When the filter cloth reel 2 lowers the filter cloth 3 , the scraper blade 10 can be separated from the roller body 902 of the reversing roller 9 to prevent the scraper blade 10 from affecting the lowering of the filter cloth 3 .

[0035] In the illustrated embodiment, with regard to the manner of cooperation between the scraper blade 10 and the reversing roller 9 in the present invention, to be more specific, the reversing roller bracket 901 is movably mounted on the plate wall 101, the reversing roller bracket 901 is formed with a linkage portion 903, and the filter cage 1 is formed with a driving portion 11 on the upper side of the plate wall 101; the driving portion 11 and the linkage portion 903 are arranged so that when the plate wall 101 moves to close the filter cage 1, the driving portion 11 drives the linkage portion 903 to drive the reversing roller bracket 901 to move, so that the roller body 902 and the scraper blade 10 are switched to a disengaged position.

[0036] As shown in the figure, when the plate wall 101 moves toward the inner side of the filter cage 1, the driving part 11 drives the reversing roller bracket 901 to move through the linkage part 903, so that the roller body 902 is automatically separated from the scraper blade 10.

[0037] In the illustrated embodiment, with regard to the manner of cooperation between the scraper blade 10 and the reversing roller 9 in the present invention, to be further specific, the reversing roller bracket 901 is rotatably mounted on the plate wall 101, the linkage portion 903 is configured as a linkage rod, and the filter cage 1 is provided with a connecting beam 102 on the upper side of the plate wall 101, and the connecting beam 102 is formed with the driving portion 11; when the plate wall 101 moves toward the driving portion 11 to close, the driving portion 11 of the connecting beam 102 pushes the linkage rod to make the reversing roller bracket 901 rotate upward, and the roller body 902 is separated from the scraper blade 10; when the plate wall 101 moves toward the outside of the filter cage 1 to separate the linkage rod from the driving portion 11 of the connecting beam 102, the reversing roller bracket 901 of the reversing roller 9 rotates downward so that the roller body 902 and the scraper blade 10 clamp the filter cloth 3.

[0038] As shown in the figure, when the plate wall 101 moves outward to separate the driving part 11 of the linkage rod and the connecting beam 102, under the action of the deadweight of the reversing roller 9, the reversing roller bracket 901 rotates downward so that the roller body 902 and the scraper blade 10 clamp the filter cloth 3. At this time, when the filter cloth reel 2 rewinds the filter cloth 3, the scraper blade 10 can scrape off the sludge on the surface of the filter cloth 3. Moreover, at this time, the scraper blade 10 and the reversing roller 9 move out of the outside of the bottom wall of the filter cage 1 as a whole, so that the scraped sludge can directly fall into the outside of the filter cage 1, which is easy to collect and clean the sludge after the filter press. Through such a setting, the automatic switching of the position change between the roller body 902 and the scraper blade 10 is realized synchronously by switching the opening and closing positions of the plate wall 101, without using a separate power component to drive the reversing roller 9 or the scraper blade 10, simplifying the structure of the present invention.

[0039] In the illustrated embodiment, a further optimized configuration of the present invention is that when the roller body 902 abuts against the scraper blade 10 , the rotation axis of the reversing roller bracket 901 is lower than the rotation axis of the roller body 902 .

[0040] As shown in the figure, after the half wall is opened, when the roller body 902 and the scraper blade 10 clamp the filter cloth 3, during the process of the filter cloth reel 2 rewinding the filter cloth 3, the force applied by the filter cloth 3 to the roller body 902 is overall rightward and downward, further promoting the roller body 902 to clamp the filter cloth 3 toward the scraper blade 10.

[0041] In the illustrated embodiment, a further optimized arrangement of the present invention is that the connecting beam 102 is also formed with a guide roller 12, and the filter cloth 3 bypasses the reversing roller 9 and then bypasses the guide roller 12 to extend upward; when the plate wall 101 is closed, the reversing roller 9 rotates upward so that the roller body 902 and the guide roller 12 clamp the filter cloth 3.

[0042] As shown in the figure, when the plate wall 101 is closed, the reversing roller 9 and the guide roller 12 can clamp and guide the filter cloth 3 to guide the filter cloth 3 when the filter cloth 3 is lowered, thereby preventing the filter cloth 3 from being repeatedly tensioned and relaxed at the position of the reversing roller 9, causing the filter cloth 3 to be offset at the position of the reversing roller 9.

[0043] In a preferred embodiment, a polyurethane layer may be provided on the surface of the roller body 902 of the reversing roller 9 and the guide roller 12 so that the reversing roller 9 and the guide roller 12 can stably clamp the filter cloth 3 .

[0044] In the illustrated embodiment, with respect to the structure of the present invention, to be more specific, a feeding screw 7 is provided in the slag collecting trough 6 .

[0045] In an optional embodiment, a conveyor belt may be provided in the slag collecting tank 6 to convey the sludge, or the bottom wall of the slag collecting tank 6 may be provided to be inclined downward toward the slag collecting tank 6 .

[0046] In the illustrated embodiment, for the structure of the present invention, to be more specific, the wall of the slag collecting trough 6 is inclined outward from bottom to top.

[0047] In the illustrated embodiment, for the structure of the present invention, to be more specific, as shown in the figure, the cross section of the cover plate 8 is set to an inverted V shape, and the mud removal mechanism also includes a telescopic rod for driving the cover plate 8 to move. As shown in the figure, the side wall of the water collection tank 4 is provided with a slide rail, and the end of the cover plate 8 is slidably fitted on the slide rail, and the telescopic rod can be a hydraulic telescopic rod or an electric telescopic rod to drive the cover plate 8 to move. By setting the inverted V-shaped cover plate 8, the remaining water can be guided to flow to the outside of the slag collecting tank 6 to prevent water from entering the slag collecting tank 6.

[0048] It should be noted that the improvement of the present invention lies in how to discharge the sludge that has been filtered through the filter cloth 3 after the sludge in the filter cage 1 is filtered. There are no restrictions on how to make the filter cloth 3 into an S shape in the filter cage 1, how to arrange the sludge to be filtered, and how to set the filter pressing mechanism. Technical personnel in this field can flexibly select existing implementation methods when implementing it, or cooperate with other implementation methods. For example, the filter cloth 3 can be manually folded into an S shape in the filter cage 1, the sludge to be filtered can be arranged manually by holding the slurry discharge pipe, and the existing vertical oil cylinder and pressing block can be used for filtering.

[0049] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0050] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A sludge ultra-high pressure filtration and desludging mechanism, characterized in that: It comprises a filter cage and a filter cloth drum arranged on the upper side of the filter cage, the filter cloth drum is wound with filter cloth, the filter cage is provided with a compression chamber with an open top, the bottom of the filter cage is provided with a water collection pool, and one side of the water collection pool is provided with a filter residue pool; A lower section of a side wall of the filter cloth drum is formed with an openable and closable plate wall; The desludging mechanism further comprises a slag collecting trough arranged between the water collecting pool and the bottom of the filter cage, the slag collecting trough being capable of receiving filter residue dropped from the filter cage at the plate wall position, and the discharge end of the slag collecting trough extending to the upper side of the filter residue pool so that the slag collecting trough can transport the filter residue to the filter residue pool; The desludging mechanism further includes a cover plate disposed between the slag collecting tank and the filter cage, wherein the cover plate can be switched between a state of shielding the slag collecting tank and a state of opening the slag collecting tank; The demudging mechanism further comprises a reversing roller arranged at the upper end of the plate wall, the reversing roller comprising a reversing roller bracket which can be moved laterally, and a roller body installed between the reversing rollers, the filter cloth is bypassed by the outer side of the roller body, so that when the plate wall is opened, the reversing roller can drive the filter cloth to move to the outer side of the filter cage; The reversing roller is installed on the plate wall, and the plate wall is slidably arranged on the filter cage so that the plate wall drives the reversing roller to move; The demudging mechanism further comprises a scraper blade arranged at the lower side of the roller body, and at least one of the scraper blade and the reversing roller bracket is arranged to be movable so that the scraper blade and the roller body can be switched between the scraping position and the disengagement position; When the scraper blade and the reversing roller are in the scraping position, the scraper blade and the roller body clamp the filter cloth; When the scraper blade and the reversing roller are in the disengaged position, the scraper blade is separated from the filter cloth on the surface side of the roller body.

2. The sludge ultra-high pressure filtration and desludging mechanism according to claim 1 is characterized in that: The reversing roller bracket is movably mounted on the plate wall, the reversing roller bracket is formed with a linkage portion, and the filter cage is formed with a driving portion on the upper side of the plate wall; the driving portion and the linkage portion are arranged so that when the plate wall moves to close the filter cage, the driving portion drives the linkage portion to drive the reversing roller bracket to move, so that the roller body and the scraper blade are switched to the disengaged position.

3. The sludge ultra-high pressure filtration and desludging mechanism according to claim 2 is characterized in that: The reversing roller bracket is rotatably mounted on the plate wall, the linkage portion is configured as a linkage rod, the filter cage is provided with a connecting beam on the upper side of the plate wall, and the connecting beam is formed with the driving portion; When the plate wall moves toward the driving part to close, the driving part of the connecting beam pushes the linkage rod to make the reversing roller bracket rotate upward, and the roller body is separated from the scraper blade; When the plate wall moves toward the outside of the filter cage to separate the linkage rod from the driving portion of the connecting beam, the reversing roller bracket of the reversing roller rotates downward so that the roller body and the scraper blade clamp the filter cloth.

4. The sludge ultra-high pressure filtration and desludging mechanism according to claim 3 is characterized in that: When the roller body abuts against the scraper blade, the rotation axis of the reversing roller bracket is lower than the rotation axis of the roller body.

5. The sludge ultra-high pressure filtration and desludging mechanism according to claim 4 is characterized in that: The connecting beam is also formed with a guide roller, and the filter cloth passes around the reversing roller and then passes around the guide roller to extend upward; When the plate wall is closed, the reversing roller rotates upward so that the roller body and the guide roller clamp the filter cloth.

6. The sludge ultra-high pressure filtration and desludging mechanism according to claim 1, characterized in that: A feeding screw is arranged in the slag collecting tank.

7. The sludge ultra-high pressure filtration and desludging mechanism according to claim 6, characterized in that: The trough wall of the slag collecting trough is inclined outward from bottom to top.

8. The sludge ultra-high pressure filtration and desludging mechanism according to claim 1, characterized in that: The cross section of the cover plate is arranged to be in an inverted V shape, and the mud removing mechanism further comprises a telescopic rod for driving the cover plate to move.

Citation Information

Patent Citations

  • Vertical sludge filter press

    CN110734207A

  • Deep sludge filter-pressing dehydration device and dehydration method

    CN111087158A