A filter cake drying apparatus

Abstract

The present application relates to the chip cleaner filter residue drying technical field, especially disclose a cutting fluid filter drying device, aims at solving the problem of cutting fluid filter residue incomplete filtration, cutting fluid waste and other problems in the prior art. The device mainly includes a conveyor belt component and a drying condensing component, the conveyor belt component is composed of a roller shaft assembly and a conveyor belt, and the two are connected to form an annular channel. The drying condensing component includes a frame, a fan, a suction cavity, a air pipe assembly, a separation cylinder and a air guide assembly, the fan is installed above the frame, one end of the air pipe assembly is connected with the fan, and the other end is sequentially connected with the suction cavity and the separation cylinder. The conveyor belt component is arranged around the bottom surface of the frame, and the suction cavity is arranged in the middle of the annular channel and fixed on the bottom of the frame. The present application is highly integrated, compact in structure, small in floor area, flexible in installation; can effectively dry the filter residue, improve the filter residue recovery rate, recover the cutting fluid water vapor at the same time, and reduce environmental pollution.

Description

Technical Field

[0001] This invention relates to the field of drying filter residue from chip conveyors, and more particularly to a cutting fluid filtration and drying apparatus. Background Technology

[0002] In machining processes, cutting fluid is an essential medium. During use, cutting fluid is typically lost due to chip adhesion and evaporation. Recycling cutting fluid is a consideration for all manufacturers. Currently, negative pressure filtration is a common filtration method in the CNC machine tool industry. However, the filter residue usually contains a certain amount of cutting fluid, which affects residue recovery and also wastes the cutting fluid. Summary of the Invention

[0003] To address the problems of incomplete filtration and cutting fluid waste in existing technologies, a filter residue drying device is provided. This invention achieves its objective by comprising a conveyor belt component and a drying and condensing component. The conveyor belt component consists of a roller assembly and a conveyor belt, which, when connected to the roller assembly, forms an annular channel. The drying and condensing component comprises a frame, a fan, a suction chamber, a duct assembly, a separation cylinder, and an air guide assembly. The fan is fixedly mounted above the frame. One end of the duct assembly is connected to the fan, and the other end is connected to the suction chamber and then to the separation cylinder. The conveyor belt component is arranged around the bottom surface of the frame, and the suction chamber is located in the middle of the annular channel and fixed to the bottom surface of the frame.

[0004] In one embodiment, the conveyor belt is provided with a plurality of uniformly arranged through holes.

[0005] In one embodiment, the suction cavity is a cuboid structure with an open top and closed sides on the other five sides.

[0006] In one embodiment, the suction cavity has a mesh plate installed on its top surface.

[0007] In one embodiment, the air guiding assembly includes an air guide hood and an air deflector, the air guide hood and the air deflector being disposed below the top surface of the frame, the air guide hood and the air deflector being disposed opposite to each other and having a gap.

[0008] In one embodiment, a one-way sealing plate is provided below the separation cylinder, and a cover plate is provided in the middle of the separation cylinder.

[0009] In one embodiment, the separator cylinder is provided with a plurality of baffles inside, the baffles being fixedly disposed above the separator cylinder and having a gap between them and the bottom of the separator cylinder.

[0010] In one embodiment, the roller assembly is driven by a drive device, and the roller assembly can drive the conveyor belt to rotate in both directions.

[0011] In one embodiment, a vibrating element is provided on the suction cavity.

[0012] In one embodiment, the fan is equipped with a frequency converter.

[0013] The device of this invention is highly integrated, compact in structure, occupies little space, and can be installed in flexible locations. It can dry the filter residue, improve the recovery rate of the filter residue, and also recover the cutting fluid moisture, reducing environmental pollution. The structure is reliably sealed and can automatically drain the fluid. It requires no consumables, has low operating costs, and requires no manual intervention. Attached Figure Description

[0014] Appendix Figure 1 Schematic diagram of the filter residue drying device; Appendix Figure 2 Left view of the filter residue drying device; Appendix Figure 3 Cross-sectional view of filter residue drying device Appendix Figure 4 : Sectional view of the separation cylinder; 100-Drying and condensing components, 110-Fan, 120-Duct assembly, 121-Outlet duct, 122-Suction duct, 123-Transfer pipe, 124-Suction port, 130-Separation cylinder, 131-Cover plate, 132-Baffle plate, 133-Drain port, 134-One-way sealing plate, 140-Suction chamber, 141-Mesh plate, 150-Air guide hood, 160-Wind shield, 170-Frame, 200-Conveyor belt components, 211-Driven roller shaft, 212-Drive roller shaft, 213-Conveyor belt. Detailed Implementation

[0015] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0017] The filter residue drying device includes a conveyor belt component 200 and a drying and condensing component 100. The conveyor belt component 200 consists of a roller assembly and a conveyor belt 213. The conveyor belt 213 and the roller assembly form an annular channel. The drying and condensing component 100 consists of a frame 170, a fan 110, a suction chamber 140, a duct assembly 120, a separation cylinder 130, and an air guide assembly. The fan 110 is fixedly installed above the frame 170. One end of the duct assembly 120 is fixedly connected to the fan 110, and the other end is connected to the suction chamber 140 and then to the separation cylinder 130. The conveyor belt component 200 is arranged around the bottom surface of the frame 170. The suction chamber 140 is located in the middle of the annular channel and fixed to the bottom surface of the frame 170. The conveyor belt 213 has several evenly arranged through holes. The suction chamber 140 is a cuboid structure with an open top and closed sides. The suction chamber 140 has a mesh plate 141 mounted on its top surface. The air guiding assembly includes an air guide hood 150 and an air baffle 160, which are located below the top surface of the frame 170 and are positioned opposite each other with a gap. A one-way sealing plate 134 is provided below the separation cylinder 130, and a cover plate 131 is provided in the middle of the separation cylinder 130. Several baffles 132 are provided inside the separation cylinder 130, which are fixedly positioned above the separation cylinder 130 and have a gap with the bottom of the separation cylinder 130. The roller assembly is driven by a drive device and can drive the conveyor belt to rotate in both directions. The roller assembly includes a drive roller 212, a conveyor belt 213, and a driven roller 211. The drive roller, the conveyor belt, and the driven roller form an annular channel, and the suction chamber is placed inside this chamber. The duct assembly includes an air outlet duct, an air outlet duct silencer, an air intake duct, and an air intake duct silencer.

[0018] The frame 170 is equipped with a suction chamber 140, a suction port 124, a screen plate 141, a drive roller shaft 212, and a driven roller shaft 211 located on the left and right sides of the suction chamber 140. One side of the conveyor belt 213 is laid flat on the surface of the screen plate 141, and a number of mesh holes are evenly distributed on the conveyor belt 213. The mesh holes are not completely aligned with the holes on the screen plate, but are arranged in an alternating manner, forming a partially overlapping ventilation gap between the mesh holes and the screen plate holes, and the diameter of the mesh holes is smaller than the diameter of the screen plate holes. When the fan blows air from top to bottom, the airflow passes vertically through the overlapping area, while the filter residue is intercepted on the surface by the mesh holes of the conveyor belt, and cannot completely enter and block the mesh holes of the lower screen plate. This ensures the maximum effective ventilation area while preventing the mesh holes from being blocked by the filter residue.

[0019] The air outlet of the fan 110 is equipped with an air outlet silencer. The other end of the air outlet silencer is connected to an air outlet pipe 121. The other end of the air outlet pipe 121 is connected to an air guide shroud 150. An air baffle 160 is arranged on the opposite side of the air guide shroud 150. A narrow gap is formed between the air guide shroud 150 and the air baffle 160, through which air is blown out. The air guide shroud directs the airflow to the top of the mesh plate 141. At the same time, the gap formed between the air baffle and the air guide shroud can enhance the air volume and wind speed, thereby increasing the blowing intensity.

[0020] The air intake of the fan 110 is equipped with an air intake silencer. An air intake pipe 122 is connected to the other side of the silencer, and the other end of the air intake pipe is connected to the separator 130. The separator 130 is a thin-walled cylindrical structure with multiple baffles 132 arranged internally, and a drain slit is provided at the bottom of each baffle 132. A drain port is provided at the lowest point of the separator 130. A maintenance window is provided on one side of the separator, and a cover plate 131 is installed on the window. An adapter pipe 123 is connected to the other end of the separator, and the other end of the adapter pipe 123 is connected to the suction port 124.

[0021] In one embodiment, the suction chamber 140 is provided with a vibrating element, which is used to generate irregular vibration waves, thereby expanding the pores of the filter cake, facilitating airflow penetration, improving the drying efficiency and effect of the filter cake, and also preventing the filter cake from sticking to the screen plate.

[0022] In one embodiment, the fan 110 is equipped with a frequency converter, which is either a frequency converter or a frequency controller. The frequency converter is electrically connected to the drive motor of the fan. By changing the power supply frequency and input power of the drive motor, the fan speed is adjusted, thereby achieving continuous adjustment of the blowing intensity, airflow speed, and blowing frequency. The frequency converter can be set independently or integrated into the PLC control system of the device to realize automatic control and parameter adjustment of the blowing process. The fan uses variable frequency blowing. By periodically or non-periodically adjusting the blowing frequency, the moisture boundary layer on the surface of the material is broken, improving the heat and mass transfer efficiency. At the same time, it avoids the material from being compacted and caking under constant wind force, maintaining the material layer in a loose and porous state, enhancing airflow penetration, and thus improving the drying rate and drying uniformity. Specifically, the fan can periodically increase or decrease the blowing frequency to form a pulsating airflow; the fan can alternately switch between high and low wind speeds according to a preset program to form an alternating strong and weak airflow; the fan can non-periodicly and randomly adjust the blowing frequency to form an irregular variable intensity airflow; the fan can adaptively adjust the blowing frequency in real time according to the humidity of the filter residue or the drying stage.

[0023] In one embodiment, a wind baffle is provided below the top surface of the frame 170. The wind baffle has a conical airflow guiding structure with a larger upper end and a smaller lower end. The upper end of the wind baffle is fixed to the frame and surrounds the air outlet of the fan, while the lower end opening faces the filter cake. Several air guide plates are provided inside the wind baffle, which are arranged inclined inward from top to bottom. A contraction-type airflow guiding gap is formed between the wind baffle and the air guide plates. After the airflow is pressurized and accelerated through the airflow guiding gap, it is blown in a directional direction towards the filter cake, maximizing the air volume and air velocity acting on the filter cake.

[0024] The function of the drying and filtration device will be further explained in detail below, taking into account its working process.

[0025] The conveyor belt 213 pulls the filter residue onto the screen plate 141. The blower 110 creates negative pressure in the suction chamber, allowing gas to pass through the filter residue, the screen plate, and the pipe into the separation cylinder. The water-containing gas condenses into liquid in the separation cylinder 130 and is temporarily stored inside. Uncondensed water vapor is blown onto the filter residue through the blower, the outlet pipe, the outlet pipe silencer, the air guide hood, and the wind baffle hood, thus circulating and condensing to dry the filter residue and preventing the overflow of liquid-containing water vapor. When the liquid volume in the separation cylinder 130 reaches a certain height, the liquid will automatically push open the one-way sealing plate and be discharged. After the liquid is drained, the one-way sealing plate 134 blocks the drain port by gravity, enhancing the drying effect during the blower's operation.

[0026] It should be noted that the filter residue in this solution can also be a filter cake, that is, the filter residue includes, but is not limited to, loose, granular, or cake-shaped solid materials.

[0027] The purpose of this invention is to provide a device that can simultaneously condense and recover water vapor while drying filter residue. Its advantages lie in converting water vapor from the drying process into a reusable resource, reducing cutting fluid waste and environmental pollution. Through technological integration, it enhances the greenness of the process and has strong application value. This device features high technological integration, a compact structure, a small footprint, and a sophisticated design. The water vapor condensation employs a multi-baffle structure to increase the flow path of water vapor and achieve maximum condensation effect. The condensate collection section uses an automatic unidirectional structure, ensuring automatic drainage of condensate and providing maximum negative pressure drying effect during equipment operation.

[0028] In the description of this invention, it should be noted that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0030] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A filter residue drying device, characterized in that, The filter residue drying device includes a conveyor belt component and a drying and condensing component. The conveyor belt component consists of a roller assembly and a conveyor belt. The conveyor belt and the roller assembly are connected to form an annular channel. The drying and condensing component consists of a frame, a fan, a suction chamber, a duct assembly, a separation cylinder, and an air guide assembly. The fan is fixedly installed above the frame. One end of the duct assembly is connected to the fan, and the other end is connected to the suction chamber and then to the separation cylinder. The conveyor belt component is arranged around the bottom surface of the frame. The suction chamber is located in the middle of the annular channel and is fixed to the bottom surface of the frame.

2. The filter residue drying apparatus according to claim 1, characterized in that, The conveyor belt is provided with several evenly arranged through holes.

3. The filter residue drying apparatus according to claim 1, characterized in that, The suction chamber is a cuboid structure with an open top and closed sides on the other five sides.

4. The filter residue drying apparatus according to claim 3, characterized in that, A mesh plate is installed on the top surface of the suction chamber.

5. The filter residue drying apparatus according to claim 1, characterized in that, The air guiding assembly includes an air guide hood and an air deflector, which are disposed below the top surface of the frame and are arranged opposite to each other with a gap between them.

6. The filter residue drying apparatus according to claim 1, characterized in that, A one-way sealing plate is provided below the separation cylinder, and a cover plate is provided in the middle of the separation cylinder.

7. The filter residue drying apparatus according to claim 1, characterized in that, The separator is provided with several baffles inside, which are fixedly installed above the separator and have a gap between them and the bottom of the separator.

8. The filter residue drying apparatus according to claim 1, characterized in that, The roller assembly is driven by a drive device, and the roller assembly can drive the conveyor belt to rotate in both directions.

9. The filter residue drying apparatus according to claim 1, characterized in that, The suction chamber is equipped with a vibrating element.

10. The filter residue drying apparatus according to claim 1, characterized in that, The fan is equipped with a frequency converter.

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