Rotary extrusion filter

Abstract

The utility model discloses a rotary extrusion filter which comprises a shell and a driving device, a main shaft is arranged in the middle of the shell, the main shaft is connected with the driving device, two filter pore plates are fixed on the main shaft, filter screens are arranged on the surfaces of the filter pore plates, a filter channel is formed by a gap between the two filter pore plates, and a material inlet is arranged at an inlet of the filter channel on the shell. A filter cake outlet is formed in an outlet of the filter channel on the shell, a filtrate outlet leading to the filter pore plate is formed in the bottom of the shell, and an openable and closable gate device for closing the filter cake outlet is arranged at the filter cake outlet. According to the utility model, materials can be extruded and filtered in an adjustable manner.

Description

Technical Field

[0001] The utility model relates to a rotary extrusion filter used in the chemical industry. Background Art

[0002] The extrusion filter achieves the filtration of materials by applying external force to the materials. For materials of different types and process types, the desired final filtration effect is different. The existing filtration equipment applies the same filtration force to the materials inside the equipment and cannot be adjusted, so it is difficult to adapt to different types of materials. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a rotary extrusion filter which can achieve adjustable extrusion filtration of materials.

[0004] A technical solution to achieve the above-mentioned purpose is: a rotary extrusion filter, including a shell and a driving device, a main shaft is arranged in the middle of the shell, the main shaft is connected to the driving device, two filter holes are fixed on the main shaft, filter screens are arranged on the surfaces of the filter holes, and the gaps between the two filter holes form a filter channel. A material inlet is arranged at the inlet of the filter channel on the shell, a filter cake outlet is arranged at the outlet of the filter channel on the shell, a filtrate outlet leading to the filter hole plate is arranged at the bottom of the shell, and a gate device that can be opened and closed to close the filter cake outlet is arranged at the filter cake outlet.

[0005] Furthermore, the gate device that can be opened and closed includes a gate and an adjusting mechanism. The gate is pivotally connected to the end of the filter cake outlet. The gate is connected to the adjusting mechanism. The adjusting mechanism is used to adjust the angle and adjust the width of the end section of the filtration channel.

[0006] Furthermore, the adjustment mechanism includes a spring and a threaded knob. The spring is arranged on the threaded knob and connected to the gate. The threaded knob rises or falls through the threaded structure to drive the gate to adjust its angle.

[0007] Furthermore, the width of the last section of the filtration channel gradually decreases.

[0008] Furthermore, a filtrate outlet is provided below the housing of each side filter plate.

[0009] The utility model is a rotary extrusion filter, in which the material enters the filter channel through the material inlet, the main shaft is driven to rotate by the driving device, the main shaft drives the filter holes on both sides to rotate, and the filter holes drive the material in the filter channel to rotate through friction. An adjustable gate is set at the channel outlet to adjust the size of the filter cake outlet; the height of the filter channel itself is also slowly reduced, all in order to achieve a better extrusion effect. During the entire operation process, the material will be continuously rotated and extruded, wherein the liquid will enter the shell on both sides of the filtrate channel through the filter screen on the filter holes on both sides, and then be discharged from the equipment through the filtrate outlet at the bottom, while the filter cake formed by the remaining solids is discharged from the equipment through the filter cake outlet. For different types of materials, the size of the extrusion force is adjusted by adjusting the gate angle to achieve adjustable filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a front cross-sectional view of a rotary extrusion filter of the utility model;

[0011] Figure 2 It is a side view of a rotary extrusion filter of the utility model;

[0012] Figure 3 It is a side sectional view of a rotary extrusion filter of the utility model. DETAILED DESCRIPTION

[0013] In order to better understand the technical solution of the utility model, the following is a detailed description through specific embodiments:

[0014] See also Figures 1 to 3 The utility model discloses a rotary extrusion filter, comprising a housing and a driving device. A main shaft 4 is arranged in the middle of the housing, and the main shaft 4 is connected to the driving device 5. The driving device 5 comprises a motor and a reducer. Two filter orifice plates 2 are fixed on the main shaft, and a filter screen 3 is arranged on the surface of the filter orifice plates. The gap between the two filter orifice plates 2 forms a filter channel 1. A material inlet 11 is arranged at the entrance of the filter channel on the housing, a filter cake outlet 12 is arranged at the outlet of the filter channel on the housing, and a filtrate outlet 13 leading to the filter orifice plates is arranged at the bottom of the housing. A filtrate outlet is arranged under the housing of the filter orifice plates 2 on each side. A closable gate device for closing the filter cake outlet is arranged at the filter cake outlet 13. The closable gate device and the housing are both arranged on the frame.

[0015] The gate device includes a gate 6, a spring 7 and a threaded knob 8. The gate 6 is pivotally connected to the end of the filter cake outlet 13, and the spring 7 is arranged on the threaded knob 8 and connected to the gate 6. The threaded knob 8 rises or falls through the thread structure, driving the gate 6 to adjust the angle and adjust the width of the end section of the filter channel. The width of the end section of the filter channel gradually decreases.

[0016] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A rotary squeeze filter, comprising a housing and a drive device, characterized in that: A main shaft is arranged in the middle of the shell, which is connected to the driving device. Two filter plates are fixed on the main shaft. A filter screen is arranged on the surface of the filter plate. The gap between the two filter plates forms a filter channel. A material inlet is arranged at the inlet of the filter channel on the shell, and a filter cake outlet is arranged at the outlet of the filter channel on the shell. A filtrate outlet leading to the filter plate is arranged at the bottom of the shell, and a gate device that can be opened and closed to close the filter cake outlet is arranged at the filter cake outlet. The gate device that can be opened and closed includes a gate and an adjusting mechanism. The gate is pivotally connected to the end of the filter cake outlet. The gate is connected to the adjusting mechanism. The adjusting mechanism is used to adjust the angle and adjust the width of the end section of the filter channel. The adjusting mechanism includes a spring and a threaded knob. The spring is arranged on the threaded knob and connected to the gate. The threaded knob rises or falls through the threaded structure to drive the gate to adjust its angle.

2. A rotary squeeze filter according to claim 1, characterized in that: The width of the last section of the filtration channel gradually decreases.

3. A rotary squeeze filter according to claim 1, characterized in that: A filtrate outlet is provided below the housing of each side filter plate.

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