Novel explosion-proof disc filter

Abstract

The utility model discloses a novel explosion-proof disc filter which comprises a base, a water ring vacuum pump, a vacuum tank, a bearing pack, a solid-liquid separation tank, a filter disc, a suction hollow shaft and a rotary motor, a sealed shell is arranged on the solid-liquid separation tank, a solid-liquid feeding pipe penetrates through the sealed shell and is communicated with the solid-liquid separation tank, and a water ring vacuum pump is arranged on the water ring vacuum pump. An air outlet of the water-ring vacuum pump is communicated with an inner cavity of the sealing shell through a pipeline; a U-shaped open packing auger is arranged outside the solid-liquid separation tank, and separated solids attached to the filtering disc are scraped down by a scraper groove, flow into the U-shaped open packing auger and are conveyed to the outside of the sealing shell. According to the solid-liquid separation tank, the solid-liquid separation tank is integrally covered by adopting the sealing shell, and feeding and exhaust are both introduced into the sealing shell, so that an organic solvent is in a sealed space, the solvent is prevented from overflowing into the air to cause explosion, and the safety is good.

Description

Technical Field

[0001] This utility model relates to a solid-liquid separation technology, and in particular to a novel explosion-proof disc filter. Background Technology

[0002] Ceramic membrane (or filter cloth membrane) disc filters are devices used for solid-liquid separation and are widely used in mining, metallurgy, chemical, and environmental protection fields. They separate solid-liquid mixtures through a membrane using vacuum suction, achieving highly efficient separation. They are suitable for handling the separation of fine particles and liquid materials.

[0003] Most existing ceramic membrane (or filter cloth membrane) disc filters are open-type structures, and the exhaust port of the water ring vacuum pump is open to the atmosphere, lacking sealing and explosion-proof functions; this greatly limits the application range of disc filters. In the grain and oil processing and chemical industries, many organic solvents are used as extraction liquids. Organic solvents cannot be mixed with air and need to be isolated to meet explosion-proof requirements. In industrial production processes where organic solvents are used as extraction liquids, solid-liquid separation must be achieved using closed explosion-proof technology. The ceramic membrane (filter cloth) filter disc needs to be sealed and isolated from the atmosphere, so that the organic solvent is contained in a sealed space, preventing the solvent from spilling into the air and causing an explosion. However, such equipment does not currently exist. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of existing disc filter technology and provide a new type of disc filter with explosion-proof function, which is reasonably designed, has a closed filtration system, and has a water ring vacuum pump exhaust port leading to the sealed shell.

[0005] The technical solution of this utility model is:

[0006] A novel explosion-proof disc filter includes a base, a water ring vacuum pump, a vacuum tank, a bearing assembly, a solid-liquid separation tank, a filter disc, a vacuum suction hollow shaft, and a rotary motor. The solid-liquid separation tank is fitted with a sealed outer shell to isolate the filter from external air. A solid-liquid feed pipe penetrates the sealed outer shell and enters the solid-liquid separation tank, conveying the material to be separated into the tank. The inlet of the water ring vacuum pump is connected to the top of the vacuum tank, and its outlet is connected to the inner cavity of the sealed outer shell via a pipe. A closed discharge auger is installed outside the solid-liquid separation tank. The solids adhering to the filter disc are scraped off by scraper grooves and flow into the closed discharge auger, where they are conveyed to the outside of the sealed outer shell.

[0007] Furthermore, the bottom of the inner cavity of the solid-liquid separation tank is provided with a stirring mechanism to prevent solid materials from settling to the bottom and affecting the adhesion speed of solid materials to the filter plate; the stirring mechanism includes a swing shaft and a swing rod, one end of the swing shaft extends out of the end of the solid-liquid separation tank and is connected to the swing motor, and one end of the swing rod is connected to the swing shaft.

[0008] Furthermore, a stirring mechanism is provided at the bottom of the inner cavity of the solid-liquid separation tank. The stirring mechanism includes a rotating shaft and a rotating rod. One end of the rotating shaft extends out of the end of the solid-liquid separation tank and is rotatably connected to it. One end of the rotating rod is connected to the rotating shaft.

[0009] Furthermore: the upper opening of the discharge enclosed auger receives material scraped off from the scraper groove; the scraped material is transported to the outside of the sealed cavity through the auger; thus ensuring that the organic solvent gas inside the sealed cavity will not be output to the outside of the cavity; isolating external air from entering the interior of the wall; the discharge port of the discharge enclosed auger is a circular pipe with a diameter equivalent to that of the auger, and the circular pipe has a certain length; the other end of the discharge enclosed auger is equipped with an explosion-proof motor and a reducer.

[0010] The beneficial effects of this utility model are:

[0011] 1. This utility model uses a sealed outer shell to completely seal the solid-liquid separation tank, and the solid-liquid mixture enters the solid-liquid separation tank inside the sealed outer shell through a closed pipe. The gas from the outlet of the water ring vacuum pump is also connected to the sealed outer shell through a pipe, so that the organic solvent is in a sealed space, preventing the solvent from overflowing into the air and causing an explosion, thus ensuring good safety.

[0012] 2. This utility model uses a scraper groove to scrape off the solids on the ceramic membrane (or filter cloth membrane) disc and guide them into a U-shaped open auger outside the solid-liquid separation tank. The separated solids are discharged from the sealed shell by the U-shaped open auger. The auger shell outside the sealed cavity uses a round tube of a certain length.

[0013] 3. The lower end of the solid-liquid separation tank of this utility model is equipped with a stirring mechanism, which can stir the solid-liquid mixture and increase the solid-liquid separation effect.

[0014] 4. This utility model has a reasonable design, a closed filter, and the exhaust port of the water ring vacuum pump is directed into the sealed shell, making it easy to promote and implement, and with good economic benefits. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a novel explosion-proof disc filter.

[0016] Figure 2 for Figure 1 The diagram shows a side view of a novel explosion-proof disc filter. Detailed Implementation

[0017] Example 1: See Figure 1 -- Figure 2 In the diagram, 1-water ring vacuum pump, 2-vacuum tank, 3-bearing housing, 4-solid-liquid separation tank, 5-sealed outer shell, 6-filter disc, 7-sucking hollow shaft, 8-scraper groove, 9-solid-liquid feed pipe, 10-rotary motor, 11-oscillating motor, 12-base, 13-oscillating shaft, 14-oscillating rod, 15-discharge enclosed auger.

[0018] A novel explosion-proof disc filter has a base 12 that is rotatably connected to a hollow suction shaft 7 via a bearing seat. One end of the hollow suction shaft 7 is connected to a rotary motor via a coupling. Filter discs 6 are spaced apart on the hollow suction shaft 7. The lower part of the filter discs 6 is located inside a solid-liquid separation tank 4. The other end of the hollow suction shaft 7 is connected to the air inlet of a vacuum tank 2 via a rotary joint and a connecting pipe. The air outlet of the vacuum tank 2 is connected to the air inlet of a water ring vacuum pump 1 via a connecting pipe. The air outlet of the water ring vacuum pump 1 is connected to the inner cavity of a sealed outer shell 5 via a connecting pipe. A sealed outer shell 5 is installed on the solid-liquid separation tank 4. A solid-liquid feed pipe 9 passes through the sealed outer shell 5 and connects to the solid-liquid separation tank 4. A discharge sealing auger 15 is installed outside the solid-liquid separation tank 4. The separated solids attached to the filter discs 6 are scraped off by a scraper groove 8 and flow into the discharge sealing auger 15, where they are transported to the outside of the sealed outer shell 5.

[0019] The upper opening (U-shaped) of the discharge enclosed auger 15 receives the material scraped off from the scraper groove 8; the scraped material is transported to the outside of the sealed cavity through the auger; thus ensuring that the organic solvent gas inside the sealed cavity will not be output to the outside of the cavity; isolating external air from entering the interior of the wall; the discharge port of the discharge enclosed auger 15 is a circular pipe with a diameter equivalent to that of the auger, and the circular pipe has a certain length; the other end of the discharge enclosed auger 15 is equipped with an explosion-proof motor and a reducer.

[0020] Preferred embodiment: A stirring mechanism is provided at the bottom of the inner cavity of the solid-liquid separation tank 4. The stirring mechanism includes a swing shaft 13 and a swing rod 14. One end of the swing shaft 13 extends out of the end of the solid-liquid separation tank 4 and is connected to the swing motor 11. One end of the swing rod 14 is connected to the swing shaft 13. This stirring method is a swing-type stirring, in which the swing shaft 13 swings left and right, rather than rotating completely.

[0021] In this embodiment, the lower end of the scraper groove 8 passes through the wall of the solid-liquid separation tank 4. Of course, the scraper groove 8 can also pass through the upper end of the solid-liquid separation tank 4. The specific position is determined according to the actual situation and will not be listed one by one.

[0022] Working principle:

[0023] 1. Filtration Process: The solid-liquid mixture enters the solid-liquid separation tank 4 through the solid-liquid feed pipe 9. The water ring vacuum pump 1 is started. Due to the vacuum suction, the liquid passes through the micropores of the filter disc 6, while the solid particles are trapped and adhere to the outer surface of the filter disc 6. As the disc rotates, the scraper groove 8 scrapes off the adhered solid material, which falls into the receiving trough. The liquid enters the vacuum tank through the ceramic micropores for temporary storage. When a certain amount has accumulated, it is discharged by the extraction pump.

[0024] 2. Cleaning process: After filtration, the filter disc 6 is backwashed or ultrasonically cleaned to remove the solid particles that clog the micropores and restore the filtration capacity.

[0025] 3. In order to ensure that the solid-liquid mixture can fully contact the filter disc 6, the liquid needs to be stirred to prevent the solids from settling to the bottom.

[0026] Main structure:

[0027] Filter disc 6: The core component, featuring high porosity and corrosion resistance.

[0028] Drive unit: drives the filter disc 6 to rotate.

[0029] Vacuum system: Provides negative pressure to enhance filtration.

[0030] advantage:

[0031] High-efficiency filtration: Microporous ceramic discs can effectively separate fine particles.

[0032] Corrosion resistance: Ceramic materials are resistant to acids, alkalis and high temperatures.

[0033] Automation: High degree of automation, reducing manual operation.

[0034] Energy-saving and environmentally friendly: low energy consumption and reduced wastewater discharge.

[0035] Application areas:

[0036] Mining: Used for tailings dewatering and concentrate filtration.

[0037] Metallurgy: Used for filtering metal ore slurries.

[0038] Chemical industry: Used for solid-liquid separation of chemical products.

[0039] Environmental protection: Used for sewage treatment and sludge dewatering.

[0040] Example 2: This example is basically the same as Example 1, and the similarities will not be repeated. The difference is that the stirring mechanism includes a rotating shaft and a rotating rod. One end of the rotating shaft extends out of the end of the solid-liquid separation tank and is rotatably connected. One end of the rotating rod is connected to the rotating shaft. This stirring method is a rotary stirring.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications made based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

[0042] This utility model patent mentions disc filters multiple times. Disc filters generally use ceramic membranes and filter cloth membranes for their filter membranes. Therefore, disc filters made using either ceramic membranes or filter cloth membranes are protected by this patent.

Claims

1. A novel explosion-proof disc filter, comprising a base, a water ring vacuum pump, a vacuum tank, a bearing assembly, a solid-liquid separation tank, a filter disc, a vacuum suction hollow shaft, and a rotary motor, characterized in that: The solid-liquid separation tank is provided with a sealed shell for isolating the inside of the disc filter from the outside air; the solid-liquid feeding pipe penetrates the wall of the sealed shell and enters the solid-liquid separation tank to deliver the material to be separated into the tank; the air inlet of the water ring vacuum pump is connected with the top of the vacuum tank, and the air outlet is connected with the inner cavity of the sealed shell through a pipe; the solid-liquid separation tank is provided with a discharge closed auger outside, and the separated solid adhered to the filter disc is scraped off by the scraper groove and flows into the discharge closed auger and is delivered outside the sealed shell.

2. A new type of explosion-proof disc filter according to claim 1, characterized in that: The inner cavity of the solid-liquid separation tank is provided with a stirring mechanism at the bottom for preventing the solid material from depositing to the bottom and affecting the adhesion speed of the solid material to the filter plate; the stirring mechanism comprises a swing shaft and a swing rod, one end of the swing shaft extends out of the end of the solid-liquid separation tank and is connected with a swing motor, and one end of the swing rod is connected with the swing shaft.

3. A new type of explosion-proof disc filter according to claim 1, characterized in that: The inner cavity of the solid-liquid separation tank is provided with a stirring mechanism at the bottom, and the stirring mechanism comprises a rotating shaft and a rotating rod, one end of the rotating shaft extends out of the end of the solid-liquid separation tank and is connected with a rotating motor, and one end of the rotating rod is connected with the rotating shaft.

4. A new type of explosion-proof disc filter according to claim 1, characterized in that: The upper opening of the discharge closed auger receives the scraped material from the scraper groove; the scraped material is delivered to the outside of the sealed cavity through the auger; so as to ensure that the organic solvent gas in the sealed cavity does not output to the outside of the cavity; the outside air is isolated from the inside of the wall; the discharge port of the discharge closed auger is a circular pipe with a diameter corresponding to that of the auger, and the circular pipe has a certain length; the other end of the discharge closed auger is provided with an explosion-proof motor and a speed reducer.

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