Impurity filtering device

Abstract

The utility model discloses an impurity filtering device which comprises a filter pump, one end of the filter pump is provided with a first filtering pipeline, the first filtering pipeline is in sealing connection with a second filtering pipeline through a flange plate, and the second filtering pipeline is in sealing connection with a first filter through a flange plate. An activated carbon adsorption surface layer, a nano filter screen surface layer and a filter element body are arranged in each of the first filter and the second filter, and a microporous membrane filter layer is mounted in the fine filter tank. According to the utility model, liquid in the chemical intermediate is recovered and filtered, the two filter structures with identical models and sizes are arranged, and the built-in activated carbon adsorption interface layer and the nano filter screen surface layer are matched with the filter element body, so that impurity particles in the solution can be adsorbed and removed layer by layer; the built-in microporous membrane filter layer can further adsorb and remove fine impurity particles in the solution, and has the advantage of good filter effect.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical intermediate filtering and processing, in particular to an impurity filtering device. Background Art

[0002] The Chinese authorized patent document with publication number CN208809556U relates to the technical field of filtering devices, and in particular to a device for stably filtering chemical intermediates; it includes a material input pipe, a rotating pipe, a rotating rod, a herringbone baffle and two groups of rotating plates, the bottom of the material input pipe is provided with an elbow, the bottom of the material input pipe passes through the top of the kettle cover and extends into the filter placement cavity, the left and right sides of the top of the herringbone baffle are provided with filter screen placement grooves, and the bottoms of the two groups of filter screen placement grooves are connected and provided with filter holes, the left and right tops of the kettle body are provided with replacement ports, and the two groups of rotating plates can be sealed and connected at the two groups of replacement ports; it also includes four groups of rotating wheels, four groups of rotating shafts, eight groups of support rods, eight groups of springs and eight groups of branch pipes, the four groups of rotating wheels can rotate relative to the four groups of rotating shafts respectively, the eight groups of springs are respectively located inside the eight groups of branch pipes, the tops of the eight groups of support rods respectively pass through the bottoms of the eight groups of branch pipes and extend into the eight groups of branch pipes, and the four groups of rotating wheels are respectively located on the left front side, left rear side, right front side and right rear side of the bottom of the kettle body.

[0003] The above-mentioned existing technologies are unable to deeply filter and remove impurity particles in the chemical intermediate solution, resulting in serious residual solid particles in the solution. Therefore, it is necessary to develop a new impurity filtering device. Utility Model Content

[0004] The purpose of the present invention is to provide an impurity filtering device to solve the problem that the prior art proposed in the above background technology cannot deeply filter and remove impurity particles in chemical intermediate solutions, resulting in serious residual solid particles in the solution.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an impurity filtering device, comprising a filter pump, a first filter pipe is installed at one end of the filter pump, the first filter pipe is sealed and connected to the second filter pipe through a flange, the second filter pipe is sealed and connected to the first filter through a flange, the bottom end of the first filter is sealed and connected to the second filter through a third filter pipe, the bottom end of the second filter is sealed and connected to a fine filter tank through a fourth filter pipe, the interiors of the first filter and the second filter are both provided with an activated carbon adsorption surface layer, a nano filter surface layer and a filter core, and the interior of the fine filter tank is provided with a microporous membrane filtration layer.

[0006] Preferably, a liquid extraction pipeline is installed at the other end of the filter pump, and a liquid extraction switch valve is installed on the liquid extraction pipeline.

[0007] Preferably, a filtrate switching valve is provided at the connection between the fine filter tank and the fourth filter pipe, and a drainage pipe is provided at the liquid outlet end of the fine filter tank.

[0008] Preferably, the activated carbon adsorption surface layer is arranged directly above the nano filter surface layer, and the filter core is arranged directly below the nano filter surface layer.

[0009] Preferably, the activated carbon adsorption surface layer, the nano-filter surface layer and the filter core are all detachable structures from the filter, and an RO filter membrane layer is installed inside the filter core.

[0010] Preferably, the microporous membrane filtration layer is an ultrafiltration membrane structure, and the surface pore size of the microporous membrane filtration layer is 1-2 nm.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model recovers and filters the liquid inside the chemical intermediate. By providing two filter structures of exactly the same size and model, a built-in activated carbon adsorption surface layer and a nano filter surface layer cooperate with a filter core, the impurity particles in the solution can be adsorbed and removed layer by layer. At the same time, a fine filter tank is installed, and a built-in microporous membrane filter layer can further adsorb and remove fine impurity particles in the solution, thereby having the advantage of good filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is the main view of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal installation structure of the first filter of the present invention;

[0016] Figure 4 This is a schematic diagram of the internal installation structure of the fine filter tank of the present utility model.

[0017] In the figure: 1. Liquid extraction switch valve; 2. Liquid extraction pipeline; 3. Filter pump; 4. First filter pipeline; 5. First filter; 6. Second filter pipeline; 7. Second filter; 8. Third filter pipeline; 9. Filtrate switch valve; 10. Fine filter tank; 11. Drain pipeline; 12. Fourth filter pipeline; 13. Activated carbon adsorption surface layer; 14. Nano filter surface layer; 15. Filter core; 16. Microporous membrane filter layer. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] See also Figure 1-4 The utility model provides an embodiment: an impurity filtering device, including a filter pump 3, one end of the filter pump 3 is equipped with a first filter pipe 4, the first filter pipe 4 is sealed and connected to the second filter pipe 6 through a flange, the second filter pipe 6 is sealed and connected to the first filter 5 through a flange, the bottom end of the first filter 5 is sealed and connected to the second filter 7 through a third filter pipe 8, the bottom end of the second filter 7 is sealed and connected to the fine filter tank 10 through a fourth filter pipe 12, the interior of the first filter 5 and the second filter 7 are both provided with an activated carbon adsorption surface layer 13, a nano filter surface layer 14 and a filter core 15, and the interior of the fine filter tank 10 is installed with a microporous membrane filtration layer 16.

[0020] Furthermore, a liquid extraction pipeline 2 is installed at the other end of the filter pump 3 , and a liquid extraction switch valve 1 is installed on the liquid extraction pipeline 2 . By opening the liquid extraction switch valve 1 , the flow of the solution inside the liquid extraction pipeline 2 is controlled.

[0021] Furthermore, a filtrate switching valve 9 is provided at the connection between the fine filter tank 10 and the fourth filter pipe 12 , and a drainage pipe 11 is provided at the liquid outlet end of the fine filter tank 10 .

[0022] Furthermore, the activated carbon adsorption surface layer 13 is arranged directly above the nano-filter surface layer 14 , and the filter core 15 is arranged directly below the nano-filter surface layer 14 .

[0023] Furthermore, the activated carbon adsorption surface layer 13, the nano filter surface layer 14 and the filter core 15 are all detachable structures from the filter. An RO filter membrane layer is installed inside the filter core 15. The activated carbon adsorption surface layer 13 is used for preliminary adsorption of impurity particles in the filter solution, and the nano filter surface layer 14 and the filter core 15 are used for filtering finer particles and suspended matter.

[0024] Furthermore, the microporous membrane filtration layer 16 is an ultrafiltration membrane structure. The surface pore size of the microporous membrane filtration layer 16 is 1-2nm, which can effectively filter and separate smaller solutes dissolved in water, such as minerals, organic matter and pigments in chemical intermediate solutions, while allowing water molecules and some smaller ions to pass through, and can further filter and remove impurity particles in the solution.

[0025] Working principle: When in use, open the liquid extraction switch valve 1, turn on the filter pump 3 to quickly extract the external chemical intermediate solution into the first filter 5 through the liquid extraction pipe 2, and the bottom end of the first filter 5 is sealed with the second filter 7 through the third filter pipe 8. The first filter 5 and the second filter 7 are both provided with an activated carbon adsorption surface layer 13, a nano filter surface layer 14 and a filter core 15. The solution passes through the first filter 5 and the second filter 7 for internal filtration. The activated carbon adsorption surface layer 13 is used for preliminary adsorption of impurity particles in the filtered solution, and the nano filter surface layer 14 and the filter core 15 are used for In order to filter out finer particles and suspended matter, the filtrate switch valve 9 is then opened, and the filtered solution is sent to the fine filter tank 10 through the fourth filter pipe 12. A microporous membrane filter layer 16 is installed inside the fine filter tank 10. The microporous membrane filter layer 16 is an ultrafiltration membrane structure. The microporous membrane filter layer 16 can effectively filter and separate smaller solutes dissolved in water, such as minerals, organic matter and pigments in chemical intermediate solutions, while allowing water molecules and some smaller ions to pass through, and can further filter and remove impurity particles in the solution. The purified filtered solution is then discharged through the drainage pipe 11.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. An impurity filtering device, comprising a filter pump (3), characterized in that: A first filter pipe (4) is installed at one end of the filter pump (3), the first filter pipe (4) is sealed and connected to a second filter pipe (6) through a flange, the second filter pipe (6) is sealed and connected to a first filter (5) through a flange, the bottom end of the first filter (5) is sealed and connected to a second filter (7) through a third filter pipe (8), the bottom end of the second filter (7) is sealed and connected to a fine filter tank (10) through a fourth filter pipe (12), the first filter (5) and the second filter (7) are both provided with an activated carbon adsorption surface layer (13), a nano filter surface layer (14) and a filter core (15), and the fine filter tank (10) is provided with a microporous membrane filter layer (16).

2. The impurity filtering device according to claim 1, characterized in that: A liquid extraction pipeline (2) is installed at the other end of the filter pump (3), and a liquid extraction switch valve (1) is installed on the liquid extraction pipeline (2).

3. The impurity filtering device according to claim 1, characterized in that: A filtrate switch valve (9) is provided at the connection between the fine filter tank (10) and the fourth filter pipe (12), and a liquid discharge pipe (11) is provided at the liquid outlet end of the fine filter tank (10).

4. The impurity filtering device according to claim 1, characterized in that: The activated carbon adsorption surface layer (13) is arranged directly above the nano filter surface layer (14), and the filter core (15) is arranged directly below the nano filter surface layer (14).

5. The impurity filtering device according to claim 1, characterized in that: The activated carbon adsorption surface layer (13), the nano-filter surface layer (14) and the filter core (15) are all detachable structures from the filter, and an RO filter membrane layer is installed inside the filter core (15).

6. The impurity filtering device according to claim 1, characterized in that: The microporous membrane filtration layer (16) is an ultrafiltration membrane structure, and the surface pore size of the microporous membrane filtration layer (16) is 1-2 nm.

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