Coking wastewater multi-stage filtering device

Abstract

The utility model relates to the technical field of coking wastewater treatment, discloses a multistage coking wastewater filtering device, and solves the problems of poor filtering effect and poor filtering efficiency of a filtering device. Through the motor, the stirring shaft, the liquid pump, the liquid storage tank and the spray head, the motor is started to drive the stirring shaft to rotate at a high speed, and in the rotating process of the stirring shaft, on one hand, particulate matters in wastewater are fully dispersed under the stirring action; on the other hand, the liquid pump sprays the flocculating agent in the liquid storage tank into the wastewater through the connecting pipe and the spray head, the flocculating agent is fully mixed with the wastewater, so that tiny impurities in the wastewater are gathered to form larger flocculate, the particle size of the flocculate is increased, subsequent filtration is facilitated, and the filtered water enters the purification tank below, so that the purification effect is improved. Therefore, the wastewater treatment effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of coking wastewater treatment technology, specifically a multi-stage filtration device for coking wastewater. Background Technology

[0002] Coking wastewater is a type of industrial wastewater with complex composition and containing a large amount of recalcitrant organic pollutants, generated during the processes of coal-to-coke production, coal gas purification, and coking product recovery.

[0003] Chinese Patent Publication No. CN212024970U discloses a multi-stage filtration and purification device for coking wastewater, including a filter cake cylinder and a purification cylinder disposed on one side of the filter cake cylinder. A wastewater inlet pipe is provided on the cylinder body near its bottom of the filter cake cylinder. A top cover is fixedly installed on the top surface of the filter cake cylinder by multiple fastening bolts. A vertically arranged protrusion is provided at the center of the bottom surface of the top cover, and a precision filter screen is provided at the bottom end of the protrusion. A sealing cover is fixedly installed on the top surface of the purification cylinder by multiple fastening bolts. A vertically arranged connecting rod is provided at the center of the bottom surface of the sealing cover, and a filter screen is provided at the bottom end of the connecting rod. An activated carbon adsorption mesh is integrally formed on the bottom surface of the filter screen. A water pump is also provided between the filter cake cylinder and the purification cylinder.

[0004] The aforementioned patent describes a multi-stage filtration and purification device for coking wastewater. This device addresses the shortcomings of existing multi-stage filtration and purification devices, such as the difficulty in discharging filtered residues, which negatively impacts the treatment of coking wastewater. Furthermore, these devices often have poor filtration efficiency and low wastewater treatment capacity, and require a significant amount of space. Utility Model Content

[0005] The purpose of this invention is to provide a multi-stage filtration device for coking wastewater. By using this device, the problem of poor filtration effect and efficiency of existing filtration devices can be solved.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-stage filtration device for coking wastewater, comprising a base plate and a purification tank disposed on the upper surface of the base plate, a filter tank disposed on the upper surface of the purification tank, an inlet pipe disposed on the upper surface of the filter tank, and a filter assembly for fully filtering wastewater disposed inside the filter tank.

[0007] The filtration assembly includes a tank cover mounted on the upper surface of the filtration tank, and a motor fixedly mounted on the upper surface of the tank cover. A stirring shaft is fixedly mounted on the output end of the motor. A connecting cylinder is located at the bottom of the tank cover, and a filter screen is located at the bottom end of the connecting cylinder. A nozzle is located at the bottom of the tank cover, and a connecting pipe is located at one end of the nozzle. One end of the connecting pipe extends through the outside of the tank cover, and a liquid pump is located at one end of the connecting pipe. A storage tank is located at one end of the liquid pump, and a flocculant is located inside the storage tank. The bottom of the storage tank is connected to the upper surface of the base plate.

[0008] Furthermore, an installation cylinder is provided at the bottom end of the stirring shaft, and a brush is provided on the outer surface of the installation cylinder, with the bottom of the brush in contact with the upper surface of the filter screen.

[0009] Furthermore, the can lid and the connecting cylinder are connected by bolt threads, and the can lid and the filter can are also connected by bolt threads, with the connecting cylinder located inside the filter can.

[0010] Furthermore, the bottom of the filter tank is connected to the upper surface of the purification tank by bolts and threads, and a sealing ring is provided between the two.

[0011] Furthermore, the inner wall of the purification tank is provided with a limiting ring, the upper surface of the limiting ring is provided with a filter frame, and the inside of the filter frame is provided with activated carbon.

[0012] Furthermore, a water outlet cylinder is provided at the bottom of the purification tank, and a valve is provided on the outer surface of the water outlet cylinder.

[0013] Furthermore, a column is provided on the upper surface of the base plate, and a control panel is provided on the upper surface of the column. A water quality detection sensor is provided inside the purification tank, and the water quality detection sensor and valves are all connected to the control panel via signals.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention proposes a multi-stage filtration device for coking wastewater. Existing filtration devices often suffer from poor filtration effects and efficiency. This invention utilizes a motor, stirring shaft, liquid pump, storage tank, and nozzles. The motor drives the stirring shaft to rotate at high speed. During this rotation, the stirring action effectively disperses particulate matter in the wastewater. Simultaneously, the liquid pump sprays flocculant from the storage tank into the wastewater through connecting pipes and nozzles. The flocculant mixes thoroughly with the wastewater, causing tiny impurities to aggregate and form larger flocs, increasing their particle size and facilitating subsequent filtration. The filtered water then enters the purification tank below, thus improving the wastewater treatment efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1;

[0017] Figure 2 This is a schematic diagram showing the separation of the purification tank and the filter tank of this utility model;

[0018] Figure 3 This is a schematic diagram showing the disassembled filter assembly of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the purification tank of this utility model;

[0020] Figure 5 This is a schematic diagram of the overall structure of the present invention. Figure 2 .

[0021] In the diagram: 1. Base plate; 2. Purification tank; 21. Sealing ring; 3. Filter tank; 31. Inlet pipe; 4. Filter assembly; 41. Tank cover; 42. Motor; 43. Stirring shaft; 44. Connecting cylinder; 45. Filter screen; 46. Nozzle; 47. Connecting pipe; 48. Liquid pump; 49. Storage tank; 5. Mounting cylinder; 51. Brush; 6. Limiting ring; 61. Filter frame; 7. Outlet cylinder; 71. Valve; 8. Column; 81. Control panel; 82. Water quality sensor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0024] Combination Figure 1 A multi-stage filtration device for coking wastewater includes a base plate 1 and a purification tank 2 disposed on the upper surface of the base plate 1. A filter tank 3 is disposed on the upper surface of the purification tank 2, and an inlet pipe 31 is disposed on the upper surface of the filter tank 3. A filter assembly 4 for fully filtering wastewater is disposed inside the filter tank 3.

[0025] The present invention will be further described below with reference to the embodiments.

[0026] Please see Figures 1-5The filter assembly 4 includes a can lid 41 disposed on the upper surface of the filter tank 3, and a motor 42 fixedly mounted on the upper surface of the can lid 41. A stirring shaft 43 is fixedly mounted on the output end of the motor 42. A connecting cylinder 44 is disposed at the bottom of the can lid 41, and a filter screen plate 45 is disposed at the bottom end of the connecting cylinder 44. A nozzle 46 is disposed at the bottom of the can lid 41, and a connecting pipe 47 is disposed at one end of the nozzle 46. One end of the connecting pipe 47 extends through the outside of the can lid 41, and a liquid pump 48 is disposed at one end of the connecting pipe 47. A liquid storage tank 49 is disposed at one end of the liquid pump 48, and a liquid storage tank 49 is disposed inside the liquid storage tank 49. The bottom of the storage tank 49 is connected to the upper surface of the base plate 1. The motor 42 is started to drive the stirring shaft 43 to rotate. During the rotation of the stirring shaft 43, on the one hand, the stirring action promotes the full dispersion of particulate matter in the wastewater; on the other hand, the liquid pump 48 sprays the flocculant in the storage tank 49 into the wastewater through the connecting pipe 47 and the nozzle 46. The flocculant and the wastewater are fully mixed, causing the small impurities in the wastewater to aggregate and form larger flocs, increasing their particle size and facilitating subsequent filtration. The filtered water then enters the purification tank 2 below, thereby improving the wastewater treatment effect.

[0027] An installation cylinder 5 is provided at the bottom end of the stirring shaft 43. A brush 51 is provided on the outer surface of the installation cylinder 5. The bottom of the brush 51 contacts the upper surface of the filter screen plate 45 to prevent the filter screen plate 45 from being blocked by impurities, extend the service life of the filter screen plate 45 and ensure filtration efficiency, and reduce the number of times the machine needs to be stopped for cleaning due to blockage.

[0028] The can lid 41 is connected to the connecting cylinder 44 by bolt threads, and the can lid 41 is also connected to the filter can 3 by bolt threads. The connecting cylinder 44 is located inside the filter can 3. This indicates that the can lid 41 and the connecting cylinder 44, and the can lid 41 and the filter can 3, are easy to disassemble and operate when the equipment needs maintenance or cleaning of the parts.

[0029] The bottom of the filter tank 3 is connected to the upper surface of the purification tank 2 by bolts and threads, and a sealing ring 21 is provided between the two, which makes it easy to disassemble and assemble the purification tank 2 and the filter tank 3. At the same time, the sealing ring 21 can ensure that the connection between the two is tight and prevent wastewater from leaking from the connection.

[0030] The inner wall of the purification tank 2 is provided with a limiting ring 6, and a filter frame 61 is provided on the upper surface of the limiting ring 6. Activated carbon is provided inside the filter frame 61. Water that has undergone preliminary filtration enters the purification tank 2 and passes through the filter frame 61 containing activated carbon inside the purification tank 2 to further remove organic pollutants, pigments and other impurities from the wastewater. The limiting ring 6 can play a role in positioning and supporting the filter frame 61.

[0031] The bottom of the purification tank 2 is equipped with a water outlet cylinder 7, and the outer surface of the water outlet cylinder 7 is equipped with a valve 71, which controls the discharge of water from the water outlet cylinder 7.

[0032] A column 8 is provided on the upper surface of the base plate 1, and a control panel 81 is provided on the upper surface of the column 8. A water quality detection sensor 82 is provided inside the purification tank 2. The water quality detection sensor 82 and the valve 71 are both connected to the control panel 81. The water quality detection sensor 82 detects the water quality after treatment and transmits the data to the control panel 81, which facilitates the operation of the operator.

[0033] Specifically, coking wastewater enters the filter tank 3 through the inlet pipe 31. At this time, the starter motor 42 drives the stirring shaft 43 to rotate. During the rotation of the stirring shaft 43, on the one hand, the stirring action promotes the full dispersion of particulate matter in the wastewater; on the other hand, the liquid pump 48 sprays the flocculant in the storage tank 49 into the wastewater through the connecting pipe 47 and the nozzle 46. The flocculant mixes fully with the wastewater, causing the tiny impurities in the wastewater to aggregate and form larger flocs, increasing their particle size and facilitating subsequent filtration. The filtered water then enters the purification tank 2 below, thereby improving the wastewater treatment effect. Because the bottom of the stirring shaft 43 is equipped with an installation cylinder 5 and a brush 51, the rotation of the brush 51 can prevent the filter screen 45 from being blocked by impurities, extend the service life of the filter screen 45, ensure filtration efficiency, and reduce the number of shutdowns for cleaning due to blockage. Furthermore, because the tank cover 41 is connected to the connecting cylinder 44, the tank cover 41... Both the filter tank 3 and the purification tank 2 are connected by bolts and threads. This connection method facilitates disassembly and operation when the equipment needs maintenance or cleaning. In addition, since the bottom of the filter tank 3 is connected to the upper surface of the purification tank 2 by bolts and threads, and a sealing ring 21 is provided between them, it is easy to disassemble and assemble the purification tank 2 and the filter tank 3. At the same time, the sealing ring 21 can ensure a tight connection between the two to prevent wastewater from leaking from the connection. Then, the water that has undergone preliminary filtration enters the purification tank 2. Inside the purification tank 2, it passes through a filter frame 61 containing activated carbon to further remove organic pollutants, pigments and other impurities from the wastewater. The limiting ring 6 can position and support the filter frame 61. Finally, the water quality is detected by the water quality detection sensor 82 and the data is transmitted to the control panel 81, so that the operator can operate the valve 71 to control the discharge of the water outlet 7.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage filtration device for coking wastewater, comprising a base plate (1) and a purification tank (2) disposed on the upper surface of the base plate (1), wherein a filter tank (3) is disposed on the upper surface of the purification tank (2), characterized in that: The upper surface of the filter tank (3) is provided with a water inlet pipe (31), and the inside of the filter tank (3) is provided with a filter assembly (4) for fully filtering wastewater; The filter assembly (4) includes a can cover (41) disposed on the upper surface of the filter tank (3) and a motor (42) fixedly mounted on the upper surface of the can cover (41). A stirring shaft (43) is fixedly mounted on the output end of the motor (42). A connecting cylinder (44) is disposed at the bottom of the can cover (41). A filter screen plate (45) is disposed at the bottom end of the connecting cylinder (44). A nozzle (46) is disposed at the bottom of the can cover (41). A connecting pipe (47) is disposed at one end of the nozzle (46). One end of the connecting pipe (47) passes through the outside of the can cover (41). A liquid pump (48) is disposed at one end of the connecting pipe (47). A liquid storage tank (49) is disposed at one end of the liquid pump (48). A flocculant is disposed inside the liquid storage tank (49). The bottom of the liquid storage tank (49) is connected to the upper surface of the base plate (1).

2. The multi-stage filtration device for coking wastewater according to claim 1, characterized in that: The bottom end of the stirring shaft (43) is provided with an installation cylinder (5), and the outer surface of the installation cylinder (5) is provided with a brush (51). The bottom of the brush (51) is in contact with the upper surface of the filter screen plate (45).

3. The multi-stage filtration device for coking wastewater according to claim 1, characterized in that: The can lid (41) and the connecting cylinder (44) are connected by bolt threads, and the can lid (41) and the filter can (3) are also connected by bolt threads. The connecting cylinder (44) is located inside the filter can (3).

4. The multi-stage filtration device for coking wastewater according to claim 1, characterized in that: The bottom of the filter tank (3) is connected to the upper surface of the purification tank (2) by bolt threads, and a sealing ring (21) is provided between the two.

5. The multi-stage filtration device for coking wastewater according to claim 1, characterized in that: The inner wall of the purification tank (2) is provided with a limiting ring (6), and a filter frame (61) is provided on the upper surface of the limiting ring (6). Activated carbon is provided inside the filter frame (61).

6. The multi-stage filtration device for coking wastewater according to claim 1, characterized in that: The bottom of the purification tank (2) is provided with a water outlet cylinder (7), and a valve (71) is provided on the outer surface of the water outlet cylinder (7).

7. A multi-stage filtration device for coking wastewater according to claim 6, characterized in that: The upper surface of the base plate (1) is provided with a column (8), the upper surface of the column (8) is provided with a control panel (81), the inside of the purification tank (2) is provided with a water quality detection sensor (82), and the water quality detection sensor (82) and the valve (71) are both connected to the control panel (81) for signal transmission.

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