Filter cloth online cleaning device

Abstract

The present application relates to an online filter cloth cleaning device. The online filter cloth cleaning device comprises a protective shell, a spray assembly and a blowing assembly. A first penetration hole is provided on one side of the protective shell, and a second penetration hole is provided on the other side of the protective shell. The filter cloth to be cleaned is movably penetrated through the first penetration hole and the second penetration hole. The spray assembly and the blowing assembly are arranged in the protective shell, and the spray assembly is arranged toward the surface of the filter cloth, and is used to spray water on the moving filter cloth. The blowing assembly is used to blow air to the filter cloth after spraying water. The online filter cloth cleaning device can be directly installed in an existing filter press, so that the filter cloth in the working process is constantly moved in the protective shell, and the online cleaning device does not hinder the normal filtration work of the filter press. The spray assembly sprays water to the filter cloth to wash away the residual materials on the filter cloth, so as to ensure that the filter cloth continues to play a filtering role. By setting the blowing assembly, the filter cloth after the water spray cleaning is blown to blow off the water on the filter cloth, so as to prevent the spray water from being brought out to the outside of the protective shell by the filter cloth.

Description

Technical Field

[0001] The present application relates to the technical field of filter presses, and in particular to an online filter cloth cleaning device. Background Art

[0002] If sludge is not properly disposed of, it will produce odor, breed mosquitoes and flies, and even cause sludge filling, which will have a bad impact on the surrounding environment. Therefore, in order to achieve the reduction, stabilization, harmlessness and resource utilization of sludge, and provide possibilities and profit space for sludge drying, carbonization, incineration and other processes, high-efficiency and low-cost sludge dehydration is the key link in sludge treatment and disposal technology.

[0003] In the related art, a filter press is used to filter and dehydrate the sludge. After the filter cloth of the filter press has been used for a period of time, the residual materials in the pores will clog the pores and reduce the filtration efficiency. If it is not cleaned in time, it will affect the filtration effect.

[0004] However, the current filter cloth cleaning device requires the filter cloth to be manually taken out of the filter press system for cleaning after shutdown, and then installed back into the filter press system for use after cleaning. This is very time-consuming and labor-intensive, requires high manual assistance, and cannot be cleaned in time, which greatly affects the filter press effect. Utility Model Content

[0005] Based on this, it is necessary to provide a filter cloth online cleaning device to address the problems that filter cloth cleaning is time-consuming, labor-intensive and cannot be cleaned in time.

[0006] A filter cloth online cleaning device, comprising:

[0007] A protective shell, wherein a first penetration hole is provided on one side surface of the protective shell, and a second penetration hole is provided on the other side surface of the protective shell, and the filter cloth to be cleaned is movably penetrated through the first penetration hole and the second penetration hole;

[0008] A spray assembly is disposed in the protective shell, the spray assembly is disposed toward the surface of the filter cloth, and is used to spray water to the moving filter cloth;

[0009] The blowing assembly is arranged in the protective shell, and the blowing assembly is used to blow air to the filter cloth after the water is sprayed, so as to remove the water on the filter cloth.

[0010] In one of the embodiments, a water spraying direction of the spray assembly forms an acute angle with the surface of the filter cloth, and the water spraying direction is inclined downward.

[0011] In one embodiment, the spray assembly includes:

[0012] A water supply pipe, wherein the water supply pipe is arranged parallel to the filter cloth, and an extending direction of the water supply pipe is perpendicular to a moving direction of the filter cloth;

[0013] A plurality of nozzles are arranged on the water supply pipe at intervals along the extending direction of the water supply pipe, and the nozzles are configured to spray water toward the filter cloth.

[0014] In one embodiment, the blowing components are provided in two groups, one group of the blowing components is provided at the first penetration hole, and the filter cloth passes through the first penetration hole after being blown by the blowing components; the other group of the blowing components is provided at the second penetration hole, and the filter cloth passes through the second penetration hole after being blown by the blowing components.

[0015] In one embodiment, the blowing assembly includes a wind knife air pipe, which is arranged parallel to the filter cloth, and the extension direction of the wind knife air pipe is perpendicular to the moving direction of the filter cloth. The wind knife air pipe is provided with a plurality of air outlet holes along its extension direction, and the air outlet holes face the filter cloth, and the compressed air in the wind knife air pipe is ejected from the air outlet holes.

[0016] In one of the embodiments, at least two spray assemblies are provided, and at least two spray assemblies are arranged at intervals along the moving direction of the filter cloth.

[0017] In one embodiment, the filter cloth online cleaning device further comprises:

[0018] A plurality of inner rollers are arranged at intervals in the protective shell and arranged in a curve, and the filter cloth is supported on the inner rollers and moves along the inner rollers.

[0019] In one of the embodiments, a spray assembly is disposed between two adjacent inner rollers, and adjacent spray assemblies face different surfaces of the filter cloth.

[0020] In one embodiment, the filter cloth online cleaning device further comprises:

[0021] A first outer roller is disposed outside the protective shell, and the first outer roller and the inner roller close to the first penetration hole support the filter cloth to pass through the first penetration hole;

[0022] The second outer roller is arranged outside the protective shell, and the second outer roller and the inner roller close to the second penetration hole support the filter cloth to pass through the second penetration hole.

[0023] In one of the embodiments, a drain port is provided on the bottom plate of the protective shell, a drain pipe is connected to the drain port, and the spray waste water in the protective shell is discharged from the drain pipe.

[0024] The above-mentioned filter cloth online cleaning device can be directly installed in the existing filter press, so that the filter cloth in the working process passes through the first penetration hole and the second penetration hole and can continuously move in the protective shell, and the online cleaning device does not hinder the normal filtration work of the filter press. In the protective shell, the spray component sprays water on the surface of the filter cloth to wash away the residual materials on the filter cloth, ensuring that the filter cloth continues to play a good filtering role. In addition, by setting up a blowing component, the filter cloth after water spray cleaning is blown to blow off the water droplets on the filter cloth, preventing the spray water from being carried out to the outside of the protective shell by the filter cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of an online filter cloth cleaning device provided in one embodiment of the present application.

[0026] Figure 2 A schematic diagram of the internal structure of an online filter cloth cleaning device provided in one embodiment of the present application at one viewing angle.

[0027] Figure 3 A schematic diagram of the internal structure of the filter cloth online cleaning device provided in one embodiment of the present application from another perspective.

[0028] Description of reference numerals:

[0029] 100. Filter cloth;

[0030] 11. Protective shell; 111. First penetration hole; 112. Second penetration hole; 113. Drainage outlet;

[0031] 12. Spray assembly; 121. Water supply pipe; 122. Nozzle;

[0032] 13. Air knife air pipe; 14. Inner roller; 15. First outer roller; 16. Second outer roller. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0034] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0035] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0037] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0039] The filter press is a device for filtering and dehydrating sludge. The filter press includes two layers of synchronously moving filter cloths. The sludge is placed between the two layers of filter cloths. By squeezing the filter cloths, the water in the sludge is squeezed out of the filter cloths to obtain solids with lower water content. The filter cloths need to be cleaned regularly to prevent the residual materials in the pores of the filter cloths from reducing the filtration efficiency.

[0040] In order to achieve online cleaning of the filter cloth, Figure 1-Figure 3 As shown, this embodiment provides an online filter cloth cleaning device, including a protective shell 11, a spray assembly 12 and a blowing assembly. A first penetration hole 111 is provided on one side of the protective shell 11, and a second penetration hole 112 is provided on the other side of the protective shell 11. The filter cloth 100 to be cleaned is movably penetrated through the first penetration hole 111 and the second penetration hole 112. The spray assembly 12 and the blowing assembly are arranged in the protective shell 11, and the spray assembly 12 is arranged toward the surface of the filter cloth 100, and is used to spray water on the moving filter cloth 100. The blowing assembly is used to blow air to the filter cloth 100 after spraying water, so as to remove water on the filter cloth 100.

[0041] The filter cloth online cleaning device can be directly installed in the existing filter press, so that the filter cloth 100 in the working process passes through the first penetration hole 111 and the second penetration hole 112 and can continuously move in the protective shell 11, and the online cleaning device does not hinder the normal filtration work of the filter press. In the protective shell 11, the spray component 12 sprays water on the surface of the filter cloth 100 to wash away the residual materials on the filter cloth 100, ensuring that the filter cloth 100 continues to play a good filtering role. In addition, by setting up a blowing component, the filter cloth 100 after water spray cleaning is blown to blow off the water droplets on the filter cloth 100, preventing the spray water from being carried out to the outside of the protective shell 11 by the filter cloth 100.

[0042] In this embodiment, Figure 2As shown, the first penetration hole 111 is provided on the left side wall of the protective shell 11 and is located at the upper end of the left side wall; the second penetration hole 112 is provided on the right side wall of the protective shell 11 and is located at the upper end of the right side wall. The filter cloth 100 is V-shaped in the protective shell 11. The filter cloth 100 enters the protective shell 11 through the first penetration hole 111, extends downward and then turns back upward, and finally leaves the protective shell 11 through the second penetration hole 112; or, the filter cloth 100 moves in the opposite direction, enters the protective shell 11 through the second penetration hole 112, extends downward and then turns back upward, and finally leaves the protective shell 11 through the first penetration hole 111. The first penetration hole 111 and the second penetration hole 112 are located at a higher position, and most of the water on the filter cloth 100 drips onto the bottom plate of the protective shell 11 under the action of gravity, so that the blowing component can more easily blow away the water droplets on the filter cloth 100.

[0043] Of course, in some other embodiments, the filter cloth 100 may also be arranged in an S-shaped curve in the protective shell 11, and one or more groups of spray assemblies 12 may be provided after each bend of the filter cloth 100, so as to improve the cleaning efficiency of the filter cloth 100 by flushing the filter cloth 100 multiple times.

[0044] In order to support the filter cloth 100, as Figure 2 and Figure 3 As shown, the filter cloth online cleaning device also includes a plurality of inner rollers 14, which are arranged at intervals in the protective shell 11, and the plurality of inner rollers 14 are arranged in a curve, and the filter cloth 100 is supported on the inner rollers 14 and moves along the inner rollers 14. The filter cloth 100 is supported and guided by the inner rollers 14, so that the filter cloth 100 moves along the designed trajectory. In this embodiment, three inner rollers 14 are provided, and the three inner rollers 14 are arranged in an inverted triangle, so that the filter cloth 100 forms a V-shaped moving route in the protective shell 11.

[0045] Furthermore, if Figure 2 and Figure 3 As shown, the filter cloth online cleaning device also includes a first outer roller 15 and a second outer roller 16, which are arranged outside the protective shell 11, and the first outer roller 15 and the inner roller 14 near the first penetration hole 111 support the filter cloth 100 to pass through the first penetration hole 111, and the second outer roller 16 and the inner roller 14 near the second penetration hole 112 support the filter cloth 100 to pass through the second penetration hole 112, so that the filter cloth 100 can smoothly pass through the first penetration hole 111 and the second penetration hole 112. Specifically, the inner roller 14, the first outer roller 15 and the second outer roller 16 are all rotatably arranged on the protective shell 11, and the protective shell 11 provides support for the inner roller 14, the first outer roller 15 and the second outer roller 16.

[0046] In order to discharge the spray waste water in the protective shell 11 in time, Figure 2As shown, a drain port 113 is provided on the bottom plate of the protective shell 11, and a drain pipe is connected to the drain port 113, and the spray waste water in the protective shell 11 is discharged from the drain pipe.

[0047] Optionally, at least two spray assemblies 12 are provided, and at least two spray assemblies 12 are arranged at intervals along the moving direction of the filter cloth 100. By providing at least two spray assemblies 12, the filter cloth 100 is rinsed at least twice, thereby ensuring that the residual material on the filter cloth 100 is rinsed clean.

[0048] In some embodiments, a spray assembly 12 is disposed between two adjacent inner rollers 14 , and the adjacent spray assemblies 12 face different surfaces of the filter cloth 100 , and the flushing cleanliness and flushing efficiency are further improved by alternately flushing the two surfaces of the filter cloth 100 .

[0049] Alternatively, if Figure 3 As shown, the angle β between the water spraying direction of the spray assembly 12 and the surface of the filter cloth 100 is acute, and the water spraying direction is inclined downward to wash the filter cloth 100 downward, so that the spray waste water drips directly downward to prevent the spray waste water from flowing back onto the filter cloth 100.

[0050] Optionally, the spray assembly 12 includes a water supply pipe 121 and a plurality of nozzles 122. The water supply pipe 121 is disposed on the protective shell 11. The water supply pipe 121 is disposed parallel to the filter cloth 100, and the extension direction of the water supply pipe 121 is perpendicular to the moving direction of the filter cloth 100. In this embodiment, the water supply pipe 121 is extended forward and backward. The plurality of nozzles 122 are disposed on the water supply pipe 121 at intervals along the extension direction of the water supply pipe 121, and the nozzles 122 are configured to spray water onto the filter cloth 100. The water spraying range of the plurality of nozzles 122 covers the width of the filter cloth 100, thereby ensuring that the nozzles 122 spray the entire filter cloth 100.

[0051] In some embodiments, two groups of blowing components are provided, one group of blowing components is provided at the first penetration hole 111, and the filter cloth 100 passes through the first penetration hole 111 after being blown by the blowing components; the other group of blowing components is provided at the second penetration hole 112, and the filter cloth 100 passes through the second penetration hole 112 after being blown by the blowing components. Since the filter cloth 100 has two working states of winding and unwinding, the filter cloth 100 has two moving directions, moving from the first penetration hole 111 to the second penetration hole 112 or from the second penetration hole 112 to the first penetration hole 111. By providing two groups of blowing components, it can be ensured that the filter cloth 100 passing through the first penetration hole 111 and the second penetration hole 112 will not bring out the spray water.

[0052] Optionally, the blowing assembly includes an air knife air pipe 13, the air knife air pipe 13 is arranged parallel to the filter cloth 100, and the extension direction of the air knife air pipe 13 is perpendicular to the moving direction of the filter cloth 100. In this embodiment, the air knife air pipe 13 is extended forward and backward. The air knife air pipe 13 is provided with a plurality of air outlets along its extension direction, and the air outlets face the filter cloth 100. The compressed air in the air knife air pipe 13 is ejected from the air outlets, so that the water droplets on the filter cloth 100 are blown off by the compressed air ejected from the air outlets. Specifically, the air knife air pipe 13 is connected to an air compressor, and the air compressor continuously provides compressed air to the air knife air pipe 13.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A filter cloth online cleaning device, characterized in that: include: A protective shell (11), wherein a first penetration hole (111) is provided on one side surface of the protective shell (11), and a second penetration hole (112) is provided on the other side surface of the protective shell (11), and the filter cloth (100) to be cleaned is movably penetrated through the first penetration hole (111) and the second penetration hole (112); A spray assembly (12) is disposed in the protective shell (11), the spray assembly (12) being disposed toward the surface of the filter cloth (100) and being used to spray water toward the filter cloth (100) in motion; A blowing assembly is arranged in the protective shell (11), and is used to blow air toward the filter cloth (100) after being sprayed with water, so as to remove water from the filter cloth (100).

2. The filter cloth online cleaning device according to claim 1, characterized in that: The water spraying direction of the spraying assembly (12) forms an acute angle with the surface of the filter cloth (100), and the water spraying direction is inclined downward.

3. The filter cloth online cleaning device according to claim 1, characterized in that: The spray assembly (12) comprises: a water supply pipe (121), the water supply pipe (121) being arranged parallel to the filter cloth (100), and the extension direction of the water supply pipe (121) being perpendicular to the movement direction of the filter cloth (100); A plurality of nozzles (122) are arranged on the water supply pipe (121) at intervals along the extension direction of the water supply pipe (121), and the nozzles (122) are configured to spray water toward the filter cloth (100).

4. The filter cloth online cleaning device according to claim 1, characterized in that: Two groups of the blowing components are provided, one group of the blowing components is provided at the first penetration hole (111), and the filter cloth (100) passes through the first penetration hole (111) after being blown by the blowing components; and the other group of the blowing components is provided at the second penetration hole (112), and the filter cloth (100) passes through the second penetration hole (112) after being blown by the blowing components.

5. The filter cloth online cleaning device according to claim 1, characterized in that: The blowing assembly comprises an air knife air pipe (13), the air knife air pipe (13) is arranged parallel to the filter cloth (100), and the extension direction of the air knife air pipe (13) is perpendicular to the moving direction of the filter cloth (100), and a plurality of air outlet holes are arranged on the air knife air pipe (13) along its extension direction, the air outlet holes face the filter cloth (100), and the compressed air in the air knife air pipe (13) is ejected from the air outlet holes.

6. The filter cloth online cleaning device according to any one of claims 1 to 5, characterized in that: At least two of the spray assemblies (12) are provided, and the at least two spray assemblies (12) are arranged at intervals along the moving direction of the filter cloth (100).

7. The filter cloth online cleaning device according to claim 6, characterized in that: The filter cloth online cleaning device also includes: A plurality of inner rollers (14), wherein the plurality of inner rollers (14) are arranged at intervals in the protective shell (11), and the plurality of inner rollers (14) are arranged in a curve, and the filter cloth (100) is supported on the inner rollers (14) and moves along the inner rollers (14).

8. The filter cloth online cleaning device according to claim 7, characterized in that: A spray assembly (12) is arranged between two adjacent inner rollers (14), and the adjacent spray assemblies (12) face different surfaces of the filter cloth (100).

9. The filter cloth online cleaning device according to claim 7, characterized in that: The filter cloth online cleaning device also includes: a first outer roller (15) disposed outside the protective shell (11), the first outer roller (15) and the inner roller (14) close to the first penetration hole (111) supporting the filter cloth (100) to pass through the first penetration hole (111); The second outer roller (16) is arranged outside the protective shell (11), and the second outer roller (16) and the inner roller (14) close to the second penetration hole (112) support the filter cloth (100) to pass through the second penetration hole (112).

10. The filter cloth online cleaning device according to any one of claims 1 to 5, characterized in that: A drainage port (113) is provided on the bottom plate of the protective shell (11), and a drainage pipe is connected to the drainage port (113), and the spray waste water in the protective shell (11) is discharged through the drainage pipe.

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