A pre-pump filtration device for fractionation of nanoparticle liquid phase systems

Abstract

The utility model relates to a pump front filter device for nanometer particle liquid phase system grading, including base cavity, upper cover cavity and filter screen group, the base cavity is by lower flange, lower cover cavity, discharge gate, cleaning port is composed, the discharge gate is installed on the lower cover cavity, and the center of lower cover cavity is towards and presents 45 degree angle with plane, the filter screen group is by compression ring and filter screen and is composed, the upper cover cavity is by upper flange, upper cover cavity, feed inlet, blowdown, scraper and is composed, the feed inlet is installed on the upper cover cavity, and the center of upper cover cavity is towards and presents 45 degree angle with plane, and the scraper is installed in the inside of upper cover cavity and is attached, the utility model discloses filter screen presents 45 degree inclination, and slurry oblique washes filter screen screen surface, avoids the accumulation of impurity and agglomerate. After shutdown, through the opening solenoid valve from the reverse flushing filter screen of cleaning port, the scraper scrapes the inside impurity and agglomerate, and the blowdown is discharged. The filter screen that is provided with simultaneously passes on the compression ring through the edge binding, can simply, fastly carry out the dismounting and replacement.

Description

Technical Field

[0001] This utility model relates to filtration devices, specifically to a pre-pump filtration device for classifying nanoparticle liquid phase systems. Background Technology

[0002] Liquid phase classification is a commonly used material classification process with wide applications in mining, chemical, petroleum, and wastewater treatment. The liquid phase classification process requires slurry pumps and hydrocyclones, which are precision equipment. During raw material production, large metal particles are generated, and material agglomeration is common during operation. If impurities and agglomerates enter the slurry pumps and hydrocyclones, they can cause blockages and wear, increasing the risk of damage, reducing classification efficiency, shortening service life, and increasing maintenance costs. Therefore, during normal startup and operation of liquid phase classification systems, it is necessary to prevent impurities and agglomerates from entering the slurry pumps and hydrocyclones; a pre-filter should be installed before the slurry pump.

[0003] Existing pre-filters are typically installed horizontally. After prolonged operation, impurities and clumps tend to accumulate on the filter screen, causing unstable slurry pump pressure. Furthermore, long-term use can easily lead to filter screen corrosion and damage, rendering it ineffective and requiring timely replacement. Additionally, existing pre-filters are inconvenient to clean and cumbersome to disassemble. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a method for liquid phase separation. The advanced pre-pump filtration system effectively prevents the accumulation of impurities and clumps.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A pre-pump filtration device for classifying nanoparticle liquid systems, the pre-filtration device comprising... The system comprises a base cavity, an upper cover cavity, and a filter assembly. The base cavity consists of a lower flange, a lower cover cavity, a discharge port, and a cleaning port. The lower flange is internally continuous, forming a downward-facing circular groove. The lower cover cavity is installed below the lower flange. The discharge port is installed on the lower cover cavity, facing the center of the cavity and forming a 45° angle with the plane. The cleaning port is installed on the lower cover cavity, facing the center of the cavity and forming a 30° angle with the plane. A water pipe is installed at the cleaning port. The filter assembly is installed within the circular groove and consists of a pressure ring and a filter screen. The upper cover cavity consists of an upper flange, an upper cover cavity, a feed port, a drain port, a scraper, and a reciprocating motor. The upper flange is internally continuous. The upper cover cavity is installed above the upper flange. The feed port is installed on the upper cover cavity, facing the center of the cavity and forming a 45° angle with the plane. The drain port is installed on the upper cover cavity. The base cavity and the upper cover cavity are connected by upper and lower flanges.

[0006] Preferably, both the base cavity and the upper cover cavity are semi-circular structures.

[0007] Preferably, the lower flange is a cylinder with a diameter of 400mm × 20mm; the through hole inside the lower flange is 300mm; the depth of the circular groove inside the lower flange is 5mm, and the outer diameter of the circular groove is 330mm.

[0008] Preferably, the inner diameter of the lower cover cavity is 300mm; the lower cover cavity is welded below the lower flange.

[0009] Preferably, the inner diameter of the discharge port is 40 mm; the discharge port is welded to the lower cover cavity.

[0010] Preferably, the upper flange is a cylinder with a diameter of 400mm and a diameter of 20mm; the through hole inside the upper flange is 300mm.

[0011] Preferably, the inner diameter of the upper cover cavity is 300mm; the upper cover cavity is welded above the upper flange.

[0012] Preferably, the inner diameter of the feed inlet is 40 mm; the feed inlet is welded to the upper cover cavity.

[0013] Preferably, the inner diameter of the drain outlet is 40mm, and it is welded to the upper cover cavity.

[0014] Preferably, the scraper is a semi-circular arc with a thickness of 3mm and a width of 10mm, and is installed inside the upper cover cavity and fits completely.

[0015] Preferably, the pressure ring is a circular ring with an outer diameter of 328 mm, an inner diameter of 300 mm, and a height of 3 mm.

[0016] Preferably, the filter screen is 200 mesh.

[0017] Preferably, the scraper, pressure ring, and filter screen are made of stainless steel.

[0018] Preferably, the water pipe is controlled by a solenoid valve.

[0019] Compared with the prior art, the beneficial effects of this utility model are: The pre-filter of this invention has its inlet and outlet angled at 45° towards the center of the upper and lower flange planes. Installed below the mixing tank, the filter screen is tilted at 45° and includes a drain outlet. During operation of the entire liquid phase classification system, the slurry obliquely washes the filter screen, effectively preventing the accumulation of impurities and clumps. After the liquid phase classification system stops, the filter screen is flushed in reverse through the cleaning port by opening the solenoid valve. The scraper removes internal impurities and clumps, which are then discharged through the drain outlet. Furthermore, the filter screen is edged onto the pressure ring, allowing for simple and quick disassembly and replacement when cleaning and maintenance of the pre-filter is required after prolonged operation of the liquid phase classification system. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the connection of the pre-filter device of this utility model.

[0021] Figure 2 This is a connection diagram illustrating an application example of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Mixing tank; 2. Pre-filter; 21. Base cavity; 211. Lower flange; 212. Circular groove; 213. Lower cover cavity; 214. Discharge port; 215. Cleaning port; 216. Solenoid valve; 22. Filter screen assembly; 221. Pressure ring; 222. Filter screen; 23. Upper cover cavity; 231. Upper flange; 232. Upper cover cavity; 233. Feed inlet; 234. Drain outlet; 235. Scraper; 236. Reciprocating motor; 3. Slurry pump; 4. Cyclone classifier. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0024] See Figure 1The pre-filter 2 of this invention is installed below the mixing tank 1 and connected to the vertical slurry pump 3 via a union and stainless steel pipe. During normal operation of the liquid phase classification, the pre-filter 2 prevents impurities and agglomerates from entering the slurry pump 3 and the cyclone classifier 4. The illustrations only show a portion of the liquid phase classification for illustrative purposes.

[0025] Specifically, see Figure 2 The pre-filter device 2 includes: The semi-circular base cavity 21 consists of a lower flange 211, a lower cover cavity 213, a discharge port 214, a cleaning port 215, and a solenoid valve 216. The lower flange 211 is internally open, allowing the graded slurry to flow through. A circular groove 212 is formed downward inside the lower flange 211. The lower cover cavity 213 is installed below the lower flange 211. The discharge port 214 is installed on the lower cover cavity 213, facing the center of the lower cover cavity 213 and forming a 45° angle with the plane. The cleaning port 215 is installed on the lower cover cavity 213, facing the center of the lower cover cavity 213 and forming a 30° angle with the plane. A water pipe and the solenoid valve 216 are installed on the cleaning port 215.

[0026] The filter assembly 22 is installed on the circular groove 212 of the base cavity 21. The filter assembly 22 includes a stainless steel pressure ring 221 and a stainless steel filter 222. The stainless steel pressure ring 221 and the stainless steel filter 222 are combined together. When the stainless steel filter 222 needs to be replaced, the stainless steel pressure ring 221 and the stainless steel filter 222 can be separated.

[0027] The semi-circular upper cover cavity 23 consists of an upper flange 231, an upper cover cavity 232, a feed inlet 233, a drain outlet 234, a scraper 235, and a reciprocating motor 236. The upper flange 231 is internally connected, allowing the graded slurry to flow through the middle. The upper cover cavity 232 is installed above the upper flange 231. The feed inlet 233 is installed on the upper cover cavity 232, facing the center of the upper cover cavity 232 and forming a 45° angle with the plane. The drain outlet 234 is welded to the upper cover cavity 232. The scraper 235 is installed inside the upper cover cavity 232 and fits snugly. The reciprocating motor 236 is installed outside the upper cover cavity 232 and connected to the scraper 235 via a rotating shaft.

[0028] The pre-filter has its inlet 233 and outlet 214 angled at 45° towards the center of the upper and lower flange planes. The pre-filter is installed below the mixing tank, causing the filter screen to be tilted at 45°, and includes a drain outlet. During the operation of the entire liquid phase classification equipment, the slurry obliquely washes the filter screen surface, preventing the accumulation of impurities and clumps. The drain outlet 234 is closed during normal operation of the liquid phase classification equipment. When the equipment is stopped, the filter screen can be flushed in reverse through the cleaning port by opening the solenoid valve; the scraper removes internal impurities and clumps, which are then discharged through the drain outlet. After prolonged operation of the liquid phase classification equipment, the base cavity 21 and the upper cover cavity 23 can be separated to facilitate the removal and replacement of the stainless steel filter screen.

[0029] The above description of the embodiments is provided to enable those skilled in the art to understand and apply the present invention. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the protection scope of the present invention.

Claims

1. A pre-pump filtration device for classifying nanoparticle liquid systems, characterized in that: The filtration device includes a base cavity, an upper cover cavity, and a filter screen assembly. The base cavity comprises a lower flange, a lower cover cavity, a discharge port, and a cleaning port. The lower flange is internally continuous, forming a downward-facing circular groove. The lower cover cavity is installed below the lower flange. The discharge port is installed on the lower cover cavity, facing the center of the cavity and at a 45° angle to the plane. The cleaning port is installed on the lower cover cavity, facing the center of the cavity and at a 30° angle to the plane. A water pipe is installed at the cleaning port. The filter screen assembly is installed within the circular groove. It consists of a pressure ring and a filter screen; the upper cover cavity consists of an upper flange, an upper cover cavity, a feed inlet, a drain outlet, a scraper, and a reciprocating motor. The upper flange is internally connected, the upper cover cavity is installed above the upper flange, the feed inlet is installed on the upper cover cavity, facing the center of the upper cover cavity and forming a 45° angle with the plane, the drain outlet is installed on the upper cover cavity, the scraper is installed inside the upper cover cavity, and the reciprocating motor is installed outside the upper cover cavity and connected to the scraper through a rotating shaft; the base cavity and the upper cover cavity are connected by upper and lower flanges.

2. The pre-pump filtration device for classifying nanoparticle liquid systems as described in claim 1, characterized in that: Both the base cavity and the top cover cavity are semi-circular structures.

3. The pre-pump filtration device for classifying nanoparticle liquid systems as described in claim 2, characterized in that: The lower flange is a cylinder with a diameter of 400mm and a diameter of 20mm; the through hole inside the lower flange is 300mm; the depth of the circular groove inside the lower flange is 5mm, and the outer diameter of the circular groove is 330mm.

4. The pre-pump filtration device for classifying nanoparticle liquid systems as described in claim 3, characterized in that: The inner diameter of the lower cover cavity is 300mm; the lower cover cavity is welded below the lower flange.

5. The pre-pump filtration device for classifying nanoparticle liquid systems as described in claim 4, characterized in that: The upper flange is a cylinder with a diameter of 400mm and a diameter of 20mm; the through hole inside the upper flange is 300mm.

6. The pre-pump filtration device for classifying nanoparticle liquid systems as described in claim 5, characterized in that: The inner diameter of the upper cover cavity is 300mm; the upper cover cavity is welded above the upper flange.

7. The pre-pump filtration device for classifying nanoparticle liquid systems as described in claim 6, characterized in that: The scraper is a semi-circular arc with a thickness of 3mm and a width of 10mm; the scraper can completely fit the upper cover cavity.

8. The pre-pump filtration device for classifying nanoparticle liquid systems as described in claim 7, characterized in that: The pressure ring is a circular ring with an outer diameter of 328 mm, an inner diameter of 300 mm, and a height of 3 mm.

9. A pre-pump filtration device for classifying nanoparticle liquid systems as described in claim 1, characterized in that: The reciprocating motor is set to reciprocate 180°.

10. The pre-pump filtration device for classifying nanoparticle liquid systems as described in claim 1, characterized in that: The filter screen is 200 mesh.

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