Filtering and separating device for pretreatment of coal chemical wastewater

Abstract

The invention discloses a coal chemical industry wastewater pretreatment filtering and separating device which comprises a shell, a filter cartridge and a feeding pipe, the filter cartridge is arranged in a through hole, the feeding pipe is arranged in an opening of the filter cartridge, and a temporary plugging assembly is arranged in the opening of the end, located in the filter cartridge, of the feeding pipe. A plurality of discharge ports are formed in the positions, close to the temporary plugging assembly, of the filter cartridge in an annular structure, filter plates for blocking the discharge ports are installed in the discharge ports through hinge pieces, and a driving assembly for driving the filter cartridge to axially move and rotate is installed on the feeding pipe. According to the present invention, the structure is simple, the entering wastewater can be rapidly thrown out through the rotating filtration cylinder so as to increase the wastewater filtration efficiency, the solid impurities can be intercepted, and the discharge pipe can be temporarily blocked through the temporary blocking assembly, such that the wastewater on the solid impurities can be completely spin-dried through the rotating filtration cylinder so as to achieve the good filtration effect. And the wastewater content of fixed impurities is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of coal chemical wastewater pretreatment, and in particular to a coal chemical wastewater pretreatment filtering and separation device. Background Art

[0002] Coal chemical wastewater is industrial wastewater containing a variety of pollutants generated during the coal processing and conversion process. In the treatment of coal chemical wastewater, these solid substances are usually removed through pretreatment steps. Pretreatment may include grid deslagging, sedimentation, filtration and other processes to remove large particles of solid impurities in the wastewater. These pretreatment steps help reduce the burden on subsequent treatment equipment and improve wastewater treatment efficiency.

[0003] However, the current pre-treatment filtration equipment has a simple structure. During the filtration process, the intercepted solid impurities will contain a large amount of wastewater. When the solid impurities are collected or treated, this part of the wastewater will also be collected together, resulting in the need to first treat part of the wastewater when the solid impurities are subsequently treated, thereby affecting the overall treatment efficiency. In addition, the current pre-treatment filtration equipment can generally only allow the wastewater to flow through the mesh holes on the filter net on its own, and its filtration efficiency is reduced. Once the solid impurities accumulate, the flow rate of the wastewater will also be reduced, further affecting the treatment efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a coal chemical wastewater pretreatment filtration and separation device, which can quickly throw out the incoming wastewater by rotation, increase the efficiency of wastewater filtration, and reduce the amount of solid impurities in the wastewater, so as to solve the problems raised in the above background technology.

[0005] The present invention is realized through the following technical scheme: a coal chemical wastewater pretreatment filtration and separation device, comprising a shell, a filter cartridge and a feed pipe, wherein a through hole penetrating the shell is provided at the center of the shell, the filter cartridge is arranged inside the through hole, the feed pipe is arranged in the opening of the filter cartridge, and a temporary plugging component is provided in the opening of the feed pipe located at one end of the filter cartridge, an annular channel is formed between the temporary plugging component and the feed pipe, the filter cartridge is provided with a plurality of discharge ports in an annular structure near the temporary plugging component, filter plates for blocking the discharge ports are installed in the discharge ports through hinges, the filter plates are arranged at one end away from the hinges in contact with the inner ring surface of the through hole, the inner ring surface of the filter cartridge is provided with baffles between adjacent filter plates, and a driving component for driving the filter cartridge to axially move and rotate is installed on the feed pipe.

[0006] As a preferred technical solution, the temporary blocking assembly includes a center shell, an air intake pipe, an exhaust pipe, a solenoid valve and a sealing sleeve. An annular groove is provided on the outer ring surface of the center shell, and the sealing sleeve is installed in the annular groove. A plurality of air intake holes connected with the annular groove are provided inside the center shell. An axial hole is provided at one end of the filter cartridge away from the feed pipe, and the air intake pipe is arranged in the axial hole. One end of the air intake pipe is installed on the center shell and is connected with the air intake hole, and the other end extends to the outside. The exhaust pipe is vertically installed on the exposed end of the air intake pipe, the solenoid valve is installed on the exhaust pipe, and a fixing frame is installed between the air intake pipe and the shell.

[0007] As a preferred technical solution, the driving assembly includes a casing, a motor, a gear, a plurality of cylinders and a convex tooth. The casing is sleeved on the open end surface of the filter cartridge, the motor is mounted on the outer ring surface of the casing, a plurality of convex teeth are mounted on the outer ring surface of the filter cartridge in an annular structure, the gear is mounted on the rotating shaft of the motor, the gear is meshed with the convex tooth, the plurality of cylinders are mounted on the feed pipe, and the piston rods of the cylinders are fixedly connected to the casing through connecting flanges.

[0008] As a preferred technical solution, an annular groove is provided on the inner ring surface of the sleeve, and a positioning ring is installed on the outer ring surface of the filter cartridge opposite to the annular groove, and the positioning ring is movably arranged in the annular groove.

[0009] As a preferred technical solution, a connecting frame is installed between the feed pipe and the shell, a plurality of bases are installed on the outer ring surface of the shell, and a discharge pipe is installed on the outer ring surface of the shell between the bases.

[0010] As a preferred technical solution, the cross-sections of the discharge port and the filter plate are both arranged in a fan-shaped structure, and the opening on the inner side of the discharge port is smaller than the opening on the outer side.

[0011] As a preferred technical solution, the end face of the filter cartridge away from the opening is not provided with filter holes, and the through hole on one side of the shell is sealed through the end face of the filter cartridge.

[0012] As a preferred technical solution, the sealing sleeve is made of elastic rubber material.

[0013] The beneficial effects of the present invention are as follows: the present invention has a simple structure, wastewater with solid impurities can enter the filter cartridge along the feed pipe, and the entering wastewater can be quickly thrown out by the rotating filter cartridge, thereby increasing the efficiency of wastewater filtration, while the solid impurities can be intercepted, and the discharge pipe can be temporarily blocked by a temporary blocking component, so that the wastewater on the solid impurities can be fully thrown out by the rotating filter cartridge, and the amount of wastewater containing fixed impurities can be reduced, and one end of the filter cartridge can be pushed out along the through hole by a driving mechanism, and the filter plate can be automatically opened to complete the dumping of the solid impurities. After returning to its original position, the pretreatment operation can be performed again, so that the entire wastewater treatment process is located inside the shell, thereby reducing pollution to the external environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a front view of the present invention;

[0017] Figure 3 It is a rear view of the present invention;

[0018] Figure 4 It is a schematic diagram of the structure of the present invention after removing the shell;

[0019] Figure 5 This is a schematic diagram of the structure of the present invention after removing the feed pipe and the filter cartridge;

[0020] Figure 6 It is a cross-sectional view of the present invention.

[0021] Among them, 1. shell; 2. filter cartridge; 3. sleeve shell; 4. feed pipe; 5. cylinder; 6. convex teeth; 7. gear; 8. motor; 9. intake pipe; 10. solenoid valve; 11. exhaust pipe; 12. fixing frame; 13. temporary plugging assembly; 14. discharge pipe; 15. filter plate; 16. center shell; 17. sealing sleeve; 18. baffle; 19. annular groove; 20. positioning ring; 21. intake hole. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0024] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a coal chemical wastewater pretreatment filtering and separation device of the present invention comprises a shell 1, a filter cartridge 2 and a feed pipe 4, wherein a through hole penetrating the shell 1 is provided at the center of the shell 1, the filter cartridge 2 is arranged inside the through hole, the feed pipe 4 is arranged in the opening of the filter cartridge 2, a temporary plugging component 13 is provided in the opening of the feed pipe 4 located at one end inside the filter cartridge 2, an annular channel is formed between the temporary plugging component 13 and the feed pipe 4, the filter cartridge 2 is provided with a plurality of discharge ports in an annular structure near the temporary plugging component 13, filter plates 15 for blocking the discharge ports are installed in the discharge ports through hinges, one end of the filter plate 15 away from the hinge is arranged in contact with the inner ring surface of the through hole, the inner ring surface of the filter cartridge 2 is located between adjacent filter plates 15, and baffles 18 are installed, and a driving component for driving the filter cartridge 2 to move axially and rotate is installed on the feed pipe 4;

[0026] Among them, the hinged part is a torsion spring hinge. After the filter plate is completely moved out, the filter plate can be automatically opened outwards through the torsion spring hinge to facilitate the discharge of internal solid impurities.

[0027] In this embodiment, the temporary plugging assembly 13 includes a center shell 16, an air intake pipe 9, an exhaust pipe 11, a solenoid valve 10 and a sealing sleeve 17. An annular groove 19 is provided on the outer ring surface of the center shell 16, and the sealing sleeve 17 is installed in the annular groove 19. A plurality of air intake holes 21 connected with the annular groove 19 are provided inside the center shell 16. An axial hole is provided at one end of the filter cartridge 2 away from the feed pipe 4, and the air intake pipe 9 is arranged in the axial hole. One end of the air intake pipe 9 is installed on the center shell 16 and is connected with the air intake hole 21, and the other end extends to the outside. The exhaust pipe 11 is vertically installed on the exposed end of the air intake pipe 9, the solenoid valve 10 is installed on the exhaust pipe 11, and a fixing frame 12 is installed between the air intake pipe 9 and the housing 1;

[0028] Among them, one end of the air inlet pipe is connected to the air pump through the air pipe, and air can be injected into the temporary blocking component through the air pump.

[0029] In this embodiment, the driving assembly includes a casing 3, a motor 8, a gear 7, a plurality of cylinders 5 and a convex tooth 6. The casing 3 is sleeved on the open end surface of the filter cartridge 2, the motor 8 is mounted on the outer ring surface of the casing 3, a plurality of convex teeth 6 are mounted on the outer ring surface of the filter cartridge 2 in an annular structure, the gear 7 is mounted on the rotating shaft of the motor 8, the gear 7 is meshed and connected with the convex tooth 6, a plurality of cylinders 5 are mounted on the feed pipe 4, and the piston rods of the cylinders 5 are fixedly connected to the casing 3 through connecting flanges.

[0030] In this embodiment, an annular groove 19 is provided on the inner ring surface of the sleeve 3, and a positioning ring 20 is installed on the outer ring surface of the filter cartridge 2 opposite to the annular groove 19. The positioning ring 20 is movably arranged in the annular groove 19, so that the filter cartridge can only rotate along the annular groove, the sleeve cannot be opened, and after the piston rod of the cylinder is extended, the moving sleeve can push the axial movement of the filter cartridge.

[0031] In this embodiment, a connecting frame is installed between the feed pipe 4 and the shell 1, a plurality of bases are installed on the outer ring surface of the shell 1, and a discharge pipe 14 is installed on the outer ring surface of the shell 1 between the bases.

[0032] In this embodiment, the cross-sections of the discharge port and the filter plate 15 are both fan-shaped, and the inner opening of the discharge port is smaller than the outer opening, so that the filter plate cannot rotate inward to ensure the flatness between the outer ring surface of the filter screen and the filter cylinder.

[0033] In this embodiment, the end face of the filter cartridge 2 away from the opening is not provided with filter holes, and the through hole on one side of the shell 1 is sealed through the end face of the filter cartridge 2 to prevent the internal waste water from being discharged along the end face of the filter cartridge.

[0034] In this embodiment, the sealing sleeve 17 is made of elastic rubber material so that the sealing sleeve can expand and return to its original position, thereby sealing the discharge pipe.

[0035] When in use, wastewater with solids can be directly injected into the feed pipe, and enter the end of the filter cartridge located inside the shell through the feed pipe and the annular channel, and the motor is started. The start of the motor drives the gear, and the rotation of the gear drives the convex teeth, which can drive the rotation of the filter cartridge. The rotation of the filter cartridge drives the wastewater and solid impurities entering the interior. The entering wastewater can be quickly thrown out through the rotating filter cartridge, thereby increasing the efficiency of wastewater filtration, and the solid impurities can be intercepted;

[0036] As the impurities inside the filter cartridge increase, the air pump can be started, and the high-pressure gas generated by the air pump can be injected into the annular groove along the air inlet pipe and the air inlet hole, so that the sealing sleeve expands until the outer ring surface of the sealing sleeve contacts the inner ring surface of the discharge pipe, thereby sealing the discharge pipe and blocking the wastewater from continuing to enter, so that the wastewater on the solid impurities can be fully dried by the rotating filter cartridge, reducing the wastewater content of fixed impurities;

[0037] After the above is completed, the cylinder can be started to extend the piston rod of the cylinder. The extension of the piston rod can push the casing and the filter cartridge, so that the filter cartridge can extend outward along the through hole. After the filter plate is completely moved out, the filter plate can be automatically opened through the hinge, so that the filter port is in an open state, and the solid impurities inside can be automatically discharged along the discharge port, and the solid impurities can be fully thrown out by rotating. After the piston rod of the cylinder retracts, the filter plate can be squeezed through the inner wall surface of the through hole, so that the filter plate is brought closer around the hinge until it enters the discharge port, so that the filter cartridge can be smoothly moved back to the inside of the casing;

[0038] After the solenoid valve is opened, the gas inside the sealing sleeve can be discharged along the intake pipe and the exhaust pipe. After the high-pressure gas is lost, the sealing sleeve can return to its original position and become flat, so that the temporary blocking component and the feed pipe are opened again, allowing the wastewater to enter the filter cartridge again.

[0039] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope defined in the claims.

Claims

1. A coal chemical wastewater pretreatment filtration and separation device, characterized in that: The invention comprises a shell (1), a filter cartridge (2) and a feed pipe (4), wherein a through hole penetrating the shell (1) is provided at the center of the shell (1), the filter cartridge (2) is arranged inside the through hole, the feed pipe (4) is arranged in the opening of the filter cartridge (2), a temporary plugging component (13) is provided in the opening of one end of the feed pipe (4) located inside the filter cartridge (2), an annular channel is formed between the temporary plugging component (13) and the feed pipe (4), the filter cartridge (2) is provided with a plurality of discharge ports in an annular structure near the temporary plugging component (13), the discharge ports are all provided with filter plates (15) for blocking the discharge ports through hinges, the filter plates (15) are arranged at one end away from the hinges in contact with the inner ring surface of the through hole, the inner ring surface of the filter cartridge (2) is provided with baffles (18) between adjacent filter plates (15), and a driving component for driving the filter cartridge (2) to move axially and rotate is installed on the feed pipe (4).

2. The coal chemical wastewater pretreatment filtration and separation device according to claim 1, characterized in that: The temporary plugging assembly (13) comprises a central shell (16), an air intake pipe (9), an exhaust pipe (11), a solenoid valve (10) and a sealing sleeve (17). An annular groove (19) is provided on the outer ring surface of the central shell (16), and the sealing sleeve (17) is installed in the annular groove (19). A plurality of air intake holes (21) connected to the annular groove (19) are provided inside the central shell (16). An axial hole is provided at one end of the filter cartridge (2) away from the feed pipe (4), and the air intake pipe (9) is arranged in the axial hole. One end of the air intake pipe (9) is installed on the central shell (16) and is connected to the air intake hole (21), and the other end extends to the outside. The exhaust pipe (11) is vertically installed on the exposed end of the air intake pipe (9), and the solenoid valve (10) is installed on the exhaust pipe (11). A fixing frame (12) is installed between the air intake pipe (9) and the shell (1).

3. The coal chemical wastewater pretreatment filtration and separation device according to claim 1, characterized in that: The driving assembly comprises a casing (3), a motor (8), a gear (7), a plurality of cylinders (5) and a convex tooth (6); the casing (3) is sleeved on the open end surface of the filter cartridge (2); the motor (8) is mounted on the outer ring surface of the casing (3); the plurality of convex teeth (6) are mounted on the outer ring surface of the filter cartridge (2) in an annular structure; the gear (7) is mounted on the rotating shaft of the motor (8); the gear (7) is meshedly connected with the convex tooth (6); the plurality of cylinders (5) are mounted on the feed pipe (4); and the piston rods of the cylinders (5) are fixedly connected to the casing (3) via a connecting flange.

4. The coal chemical wastewater pretreatment filtration and separation device according to claim 3 is characterized in that: An annular groove (19) is provided on the inner ring surface of the casing (3), and a positioning ring (20) is installed on the outer ring surface of the filter cartridge (2) opposite to the annular groove (19). The positioning ring (20) is movably arranged in the annular groove (19).

5. The coal chemical wastewater pretreatment filtration and separation device according to claim 1, characterized in that: A connecting frame is installed between the feed pipe (4) and the shell (1), a plurality of bases are installed on the outer ring surface of the shell (1), and a discharge pipe (14) is installed between the bases on the outer ring surface of the shell (1).

6. The coal chemical wastewater pretreatment filtration and separation device according to claim 1, characterized in that: The cross sections of the discharge port and the filter plate (15) are both arranged in a fan-shaped structure, and the opening inside the discharge port is smaller than the opening outside.

7. The coal chemical wastewater pretreatment filtration and separation device according to claim 1, characterized in that: The end surface of the filter cartridge (2) away from the opening is not provided with a filter hole, and the through hole on one side of the shell (1) is sealed through the end surface of the filter cartridge (2).

8. The coal chemical wastewater pretreatment filtration and separation device according to claim 2, characterized in that: The sealing sleeve (17) is made of elastic rubber material.

Images