Filter cake blowing structure based on filter plate of filter press

Abstract

The utility model discloses a filter cake blowing structure based on a filter plate of a filter press, which comprises a filter plate assembly, filter cloth is arranged in the filter plate assembly, the filter cloth divides an inner cavity of the filter plate assembly into a filter cake cavity and a water filtering cavity, an annular flow channel is arranged on the filter plate assembly, and the filter cake cavity is communicated with the water filtering cavity. A water filtering cavity is formed in the filter plate assembly, a plurality of flow holes are uniformly formed in the inner wall of the water filtering cavity and are communicated with the water filtering cavity, a water outlet pipe is mounted on the filter plate assembly, a blowing pipe is mounted on the water outlet pipe, and the blowing pipe is connected with a compressed air pipeline; the filter plate assembly has the beneficial effects that the filter plate assembly is simple in structure, the filter plate assembly is designed into a split structure, and the annular flow channel is designed on the filter plate assembly, so that filtered water can be quickly discharged, the pressure maintaining time of filter pressing is shortened, the water content is reduced, and meanwhile, the blowpipe is designed, and blowback is carried out through the flow channel and the flow hole, so that the filter pressing efficiency is improved. The filter cake is automatically separated from the filter cloth, so that the normal filter pressing operation is ensured.

Description

Technical field:

[0001] The utility model relates to the technical field of filter press equipment, in particular to a filter cake blowing structure based on a filter plate of a filter press. Background technology:

[0002] The filter press is the main filtering equipment in the solid-liquid separation industry. During filtration, the material enters the filter chamber through the central feed hole of the filter plate. The filter cloth installed in the filter chamber intercepts the particles in the material to form a filter cake, and the filtrate is discharged from the four corner outlet holes of the filter plate to achieve the purpose of solid-liquid separation. During the actual operation of the filter press, it is easy for the filter cake to fail to fall off automatically or completely. The main reason is that the filter cake has a high water content, resulting in high viscosity of the filter cake. When this happens, manual intervention is usually required, such as using special tools to remove the filter cake. The work efficiency is low and it is easy to filter the cloth, which needs to be improved urgently. Utility model content:

[0003] The utility model aims to provide a filter cake blowing structure based on a filter press filter plate to solve the problem in the prior art that the filter cake of the filter press has a high water content, resulting in the filter cake being unable to fall off automatically. The main reason is the technical problem that the filter cake has a high viscosity due to the high water content of the filter cake.

[0004] Contents of the utility model: A filter cake blowing structure based on a filter plate of a filter press comprises a filter plate assembly, a filter cloth is installed in the filter plate assembly, the filter cloth divides the inner cavity of the filter plate assembly into a filter cake cavity and a water filter cavity, an annular flow channel is arranged on the filter plate assembly, a plurality of flow holes are evenly distributed on the inner wall of the water filter cavity, the flow holes are connected with the water filter cavity, a water outlet pipe is installed on the filter plate assembly, a blowing pipe is installed on the water outlet pipe, and the blowing pipe is connected to a compressed air pipeline.

[0005] Furthermore, the filter plate assembly is formed by a filter plate frame and a filter plate groove that are buckled together. A filter cloth is installed in the filter plate frame. An annular flow groove is opened on the outer edge of the filter plate groove. The flow groove is buckled on the filter plate frame to form the flow channel.

[0006] Furthermore, a sealing ring is provided between the filter plate frame and the filter plate groove, and the sealing ring is used to seal the flow groove.

[0007] Preferably, all the flow holes are centrosymmetric about the center of the filter plate assembly, and the axes of the flow holes do not intersect with the center of the filter plate assembly.

[0008] Preferably, the inclination direction of the flow hole is toward the blowing direction in the flow channel.

[0009] Preferably, a plurality of support pins are arranged in the filter plate groove, and the support pins are used to support the filter cloth.

[0010] The beneficial effects of the utility model are as follows: the utility model has a simple structure, the filter plate assembly is designed as a split structure, and an annular flow channel is designed on the filter plate assembly, and flow holes with a vortex arrangement are designed, so that the filtered water can be discharged quickly, reducing the pressure holding time of the filter press and reducing the water content. At the same time, a blow pipe is designed to perform backblowing through the flow channel and the flow holes to reduce the water content, prompting the filter cake to automatically separate from the filter cloth, thereby ensuring the normal progress of the filter press operation. Description of the drawings:

[0011] Figure 1 It is the front view of the utility model;

[0012] Figure 2 It is a three-dimensional diagram of the utility model;

[0013] In the figure, there are a filter plate frame 1, a filter cloth 2, a support pin 3, a flow slot 4, a flow hole 5, a water outlet pipe 8, a blow pipe 9, a filter plate slot 10, and a water filter chamber 11. Specific implementation method:

[0014] like Figure 1 and Figure 2 As shown, a filter cake blowing structure based on a filter plate of a filter press comprises a filter plate assembly, a filter cloth 2 is installed in the filter plate assembly, the filter cloth 2 divides the inner cavity of the filter plate assembly into a filter cake cavity and a water filter cavity 11, an annular flow channel is arranged on the filter plate assembly, a plurality of flow holes 5 are evenly distributed on the inner wall of the water filter cavity 11, the flow holes 5 are connected with the water filter cavity 11, a water outlet pipe 8 is installed on the filter plate assembly, a blowing pipe 9 is installed on the water outlet pipe 8, and the blowing pipe 9 is connected with a compressed air pipeline; in order to facilitate processing and manufacturing, the filter plate assembly is formed by buckling a filter plate frame 1 and a filter plate groove 10, a filter plate 1 is installed in the filter plate frame 1 Cloth 2, an annular flow groove 4 is opened on the outer edge of the filter plate groove 10, and the flow groove 4 is buckled on the filter plate frame 1 to form the flow channel; a sealing ring is arranged between the filter plate frame 1 and the filter plate groove 10, and the sealing ring is used to seal the flow groove 4; in order to make the airflow more evenly arranged in the water filter chamber 11 and achieve the best backblowing effect, all the flow holes 5 are centrally symmetrical about the center of the filter plate assembly, and the axis of the flow hole 5 does not intersect with the center of the filter plate assembly; the inclination direction of the flow hole 5 is toward the blowing direction in the flow channel; a plurality of support pins 3 are arranged in the filter plate groove 10, and the support pins 3 are used to support the filter cloth 2.

[0015] During specific operation, when the filter press is in the extrusion operation, the filtrate enters the water filter chamber 11 through the filter cloth 2, and the water in the water filter chamber 11 is collected into the flow channel through the numerous flow holes 5, and finally discharged from the outlet pipe 8; after the filtration is completed, the compressed air pipeline can be started, and the compressed air enters the flow channel through the blowing pipe 9, and enters the water filter chamber 11 through the multiple flow holes 5 arranged in a vortex, so as to evenly blow the filter cloth and make the filter cake fall off quickly.

[0016] The above are only preferred examples of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The filter cake blowing structure based on the filter plate of the filter press is characterized by: It comprises a filter plate assembly, in which a filter cloth (2) is installed, the filter cloth (2) divides the inner cavity of the filter plate assembly into a filter cake cavity and a water filter cavity (11), an annular flow channel is arranged on the filter plate assembly, a plurality of flow holes (5) are evenly distributed on the inner wall of the water filter cavity (11), the flow holes (5) are connected to the water filter cavity (11), a water outlet pipe (8) is installed on the filter plate assembly, a blow pipe (9) is installed on the water outlet pipe (8), and the blow pipe (9) is connected to a compressed air pipeline.

2. The filter cake blowing structure based on the filter plate of the filter press according to claim 1, characterized in that: The filter plate assembly is formed by snapping together a filter plate frame (1) and a filter plate groove (10); a filter cloth (2) is installed in the filter plate frame (1); an annular flow groove (4) is provided on the outer edge of the filter plate groove (10); the flow groove (4) is snapped together on the filter plate frame (1) to form the flow channel.

3. The filter cake blowing structure based on the filter plate of the filter press according to claim 2, characterized in that: A sealing ring is provided between the filter plate frame (1) and the filter plate slot (10), and the sealing ring is used to seal the flow slot (4).

4. The filter cake blowing structure based on the filter plate of the filter press according to claim 1, characterized in that: All the flow holes (5) are centrally symmetrical about the center of the filter plate assembly, and the axes of the flow holes (5) do not intersect with the center of the filter plate assembly.

5. The filter cake blowing structure based on the filter plate of the filter press according to claim 1, characterized in that: The inclination direction of the flow hole (5) is toward the blowing direction in the flow channel.

6. The filter cake blowing structure based on the filter plate of the filter press according to claim 2, characterized in that: A plurality of support pins (3) are arranged in the filter plate groove (10), and the support pins (3) are used to support the filter cloth (2).

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