Advanced treatment device for sewage in coal chemical industry

Abstract

The utility model relates to a coal chemical industry sewage advanced treatment device which comprises a bearing shell, the bearing shell is used for bearing coal chemical industry sewage, a stirring assembly is arranged on the bearing shell and comprises a protective cover and a stirring arm, the protective cover is provided with an inner cavity, the stirring arm stirs the coal chemical industry sewage in the bearing shell, and the stirring arm comprises a positioning arm and an adsorption arm. The adsorption arm is used for adsorbing organic matters and heavy metal ions in coal chemical sewage, the stirring arm is in a straight arm state when located in the inner cavity, a heating area and a cleaning area are arranged in the protective cover, the adsorption arm sequentially passes through the heating area and the cleaning area, and after the adsorption arm is dried by the heating area, the adsorption arm is cleaned in the cleaning area; compared with the prior art, the coal chemical sewage treatment device can stir coal chemical sewage through the stirring arm, so that the adsorption arm on the stirring arm adsorbs suspended solids and heavy metal ions in the coal chemical sewage, and the adsorption arm can be cleaned, so that the adsorption arm does not need to be frequently replaced.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment equipment, specifically relating to a deep treatment device for coal chemical wastewater. Background Technology

[0002] Coal chemical wastewater has a complex composition and contains a large number of pollutants. If it is not purified, it will cause serious harm to the environment and human health. For example, coal chemical wastewater contains a large amount of organic matter, ammonia nitrogen, sulfides, cyanides, heavy metals and other pollutants. If it is discharged directly, these pollutants will enter rivers, lakes and other water bodies, leading to water quality deterioration. At the same time, the harmful substances in untreated coal chemical wastewater may enter the human body through the food chain, causing damage to the nervous system, respiratory system, digestive system and other systems, and causing various diseases.

[0003] Existing technologies include activated carbon adsorption, advanced oxidation technology, and membrane separation technology for treating coal chemical wastewater. Among these, activated carbon adsorption technology is the most commonly used. Activated carbon has a huge specific surface area and abundant microporous structure, and it adsorbs organic matter, heavy metal ions, and other substances in wastewater onto its surface through adsorption, resulting in a good adsorption effect.

[0004] However, the adsorption capacity of activated carbon is limited and it needs to be replaced regularly; otherwise, the adsorption effect may be affected for high-concentration wastewater. Utility Model Content

[0005] The purpose of this invention is to provide a deep treatment device for coal chemical wastewater, which can reduce the frequency of replacement of the activated carbon adsorption section.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is a deep treatment device for coal chemical wastewater, including a supporting shell for holding coal chemical wastewater. A stirring assembly is provided on the supporting shell, and the stirring assembly includes a protective cover and a stirring arm. The protective cover has an inner cavity. The stirring arm stirs the coal chemical wastewater in the supporting shell. The stirring arm includes a positioning arm and an adsorption arm. The adsorption arm is used to adsorb organic matter and heavy metal ions in the coal chemical wastewater. The adsorption arm is hinged to the positioning arm. When the stirring arm is in the inner cavity, it is in a straight arm state. A heating zone and a cleaning zone are provided inside the protective cover. The adsorption arm passes through the heating zone and the cleaning zone in sequence. After the heating zone dries the adsorption arm, the adsorption arm is cleaned in the cleaning zone.

[0007] Furthermore, the adsorption arm includes a rod, on which an adsorption roller is sleeved, and the adsorption roller can rotate when it moves within the inner cavity of the protective cover.

[0008] Furthermore, the adsorption roller body includes an inner sleeve and an outer roller. The outer roller is made of activated carbon and is sleeved on the inner sleeve. The inner sleeve is sleeved on the arm. A transmission disc is fixed to the inner end of the inner sleeve. The transmission disc engages with a guide strip, which is located inside the protective cover.

[0009] Furthermore, the inner end of the adsorption arm is connected to the positioning arm, and the adsorption arm can be flipped downwards with a maximum flip angle of 45°.

[0010] Furthermore, a guide ring is provided inside the cavity of the protective cover. The guide ring can guide the adsorption arm to rotate so that the adsorption arm and the positioning arm are on the same straight line.

[0011] Furthermore, the guide ring includes an inner ring body and an outer ring body, both of which are semi-circular ring bodies. The end of the outer ring body is connected to the end of the inner ring body, and the outer ring body is located outside the protective cover.

[0012] Furthermore, a 45° angle is formed between the plane containing the outer ring and the plane containing the inner ring.

[0013] Furthermore, the cleaning area consists of cleaning brushes arranged along the circumference of the protective cover.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by stirring the coal chemical wastewater with the stirring arm, the adsorption arm on the stirring arm can adsorb the suspended solids and heavy metal ions in the coal chemical wastewater, and the adsorption arm can be cleaned, so that the adsorption arm does not need to be replaced frequently.

[0015] At the same time, the wastewater from coal chemical industry is heated to release ammonia nitrogen and other substances contained within it in the form of gas. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the stirring arm structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the guide ring structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the adsorption arm structure of this utility model;

[0020] Figure 5 This is a schematic diagram showing the connection between the lower cover plate, the second heating component, and the cleaning brush of this utility model;

[0021] Among them, 1-bearing shell, 2-central shaft column, 3-integrated disk, 401-positioning arm, 402-adsorption arm, 4021-arm rod, 4022-baffle, 4023-locking disk, 4024-inner sleeve, 4025-outer roller, 4026-transmission disk, 5-protective cover, 6-inner cavity, 7-guide ring, 701-inner ring body, 702-outer ring body, 801-first heating component, 802-second heating component, 9-cleaning brush, 10-guide strip, 11-cover, 12-support platform, 13-drive motor. 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 of the present utility model. It should be understood that the preferred embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. In the embodiments, the components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.

[0023] See Figures 1 to 5 As shown, a deep treatment device for coal chemical wastewater includes a support shell 1 with an upper opening. A stirring component is provided at the upper opening of the support shell 1. The support shell 1 can hold coal chemical wastewater, and the stirring component stirs and treats the coal chemical wastewater in the support shell 1. During the stirring process, organic matter, heavy metal ions, etc. in the coal chemical wastewater are filtered out.

[0024] The mixing assembly includes an inclined central shaft 2, an integrated disk 3 fixed on the central shaft 2, and several mixing arms mounted on the integrated disk 3. The mixing arms are arranged in an array around the central shaft 2, and each mixing arm extends radially along the integrated disk 3. However, because the central shaft 2 is inclined, the mixing arms cannot enter the coal chemical wastewater at the same time. But when the central shaft 2 rotates, the mixing arms will enter the coal chemical wastewater in sequence and treat the coal chemical wastewater through the mixing arms.

[0025] The stirring arm mainly consists of two parts: a positioning arm 401 and an adsorption arm 402. The length of the positioning arm 401 is shorter than the length of the adsorption arm 402, and the adsorption arm 402 is hinged to the positioning arm 401. The adsorption arm 402 can then be rotated vertically. Specifically, one end of the positioning arm 401 is fixed to the integrated disk 3, and the other end of the positioning arm 401 has a notch extending from bottom to top, but the notch does not penetrate the positioning arm 401; that is, the notch has a pressure surface. The inner end of the adsorption arm 402 is flat and positioned... Within the notch, the adsorption arm 402 is connected to the positioning arm 401 via a hinge shaft. The inner end of the adsorption arm 402 is provided with a locking protrusion 403. When the adsorption arm 402 and the positioning arm 401 are on the same straight line, the adsorption arm 402 rests against the top pressing surface of the notch. After the adsorption arm 402 is rotated downwards by 45°, the locking protrusion 403 will contact the positioning arm 401. That is, the maximum rotation angle of the adsorption arm 402 is 45°. When the adsorption arm 402 is in coal chemical wastewater, the angle between the adsorption arm 402 and the positioning arm 401 is 45°.

[0026] The stirring assembly also includes a protective cover 5 mounted on the support shell 1. The protective cover 5 has a semi-circular inner cavity 6. When the central shaft rotates, part of the stirring arm moves outward from the inner cavity 6, and another part of the stirring arm moves inward from the outer side of the protective cover 5 into the inner cavity 6. When the stirring arm is in the inner cavity 6 of the protective cover 5, it is in a straight arm state. At this time, the adsorption arm 402 can be treated to remove the organic matter on the adsorption arm 402. The removed organic matter will be collected by the protective cover 5. When the stirring arm leaves the inner cavity 6 of the protective cover 5, under the action of gravity, the adsorption arm 402 flips downward. At this time, the stirring arm will become bent. That is, as the stirring arm separates from the inner cavity 6 of the protective cover 5, the angle formed between the adsorption arm 402 and the positioning arm 401 gradually becomes 45°. The treated adsorption arm 402 can then re-enter the coal chemical wastewater.

[0027] The protective cover 5 consists of an upper cover plate and a lower cover plate, both of which are semi-circular and spaced apart. A curved surrounding plate connects the upper and lower cover plates, and is fixed to the arc edges of the upper and lower cover plates. The area enclosed by these three components is the inner cavity 6 of the protective cover 5. A guide ring 7 is provided in the inner cavity 6 and is fixed to the lower cover plate. The guide ring 7 guides the rotation of the adsorption arm 402, aligning it with the positioning arm 401 in a straight line. The guide ring 7 includes an inner ring body 701 and an outer ring body 702, both of which are semi-circular. The inner ring body 701 is fixed to the lower cover plate, and the end of the outer ring body 702 is aligned with the end of the inner ring body 701. The ring 702 is located on the outside of the protective cover 5. At this time, the plane of the outer ring 702 and the plane of the inner ring 701 form a 45° angle. The joint between the outer ring 702 and the inner ring 701 is an arc transition, that is, the guide ring 7 has a local downward bending. When the stirring arm enters the inner cavity 6 of the protective cover 5, the inner ring 701 supports the adsorption arm 402 near the inner end, so that the adsorption arm 402 and the positioning arm 401 are on the same straight line. When the stirring arm moves out of the inner cavity 6 of the protective cover 5, the outer ring 702 supports the adsorption arm 402 near the inner end. At this time, under the influence of gravity, the adsorption arm 402 can gradually flip downward.

[0028] The aforementioned adsorption arm 402 includes a cylindrical arm 4021 with a flat inner end and a baffle 4022 near the inner end. The outer end of the arm 4021 has external threads. An adsorption roller is sleeved on the arm 4021. The adsorption roller is cylindrical and its inner end rests against the baffle 4022. A locking disc 4023 is screwed onto the outer end of the arm 4021. The locking disc 4023 and the baffle 4022 clamp the adsorption roller. The roller can be replaced after the locking disc 4023 is unscrewed.

[0029] The adsorption roller consists of an inner sleeve 4024 and an outer roller 4025. The inner sleeve 4024 is fitted onto the arm 4021, and a transmission disc 4026 is fixed to the inner end of the inner sleeve 4024. The diameter of the transmission disc 4026 is larger than the diameter of the baffle 4022. The outer roller 4025 is fitted onto the inner sleeve 4024, and the two are fixedly connected. The outer roller 4025 is made of activated carbon and its surface is covered with a grid 4027. The grid 4027 is fixedly connected to the inner sleeve 4024. The outer roller 4025 adsorbs heavy metal ions and organic matter in coal chemical wastewater.

[0030] A cleaning component is installed inside the protective cover 5, which can contact the adsorption arm 402. A first heating component 801 and a second heating component 802 are respectively installed below the support shell and inside the protective cover 5. The second heating component 802 provides a heating area inside the protective cover 5. The first heating component 801 can heat the coal chemical wastewater inside the support shell. At the same time, when the adsorption roller enters the protective cover 5, the second heating component 802 can heat the adsorption roller on the adsorption arm 402. During the heating process, the organic matter adsorbed on the activated carbon absorbs heat and undergoes a pyrolysis reaction, transforming into small molecule gases and coke, etc. Then the adsorption arm 402 comes into contact with the cleaning component, and the cleaning component removes the coke on the adsorption arm 402.

[0031] The cleaning assembly includes sweeping brushes 9 fixed to the upper and lower covers. The sweeping brushes 9 are elongated and extend radially along the cover 5. They are arranged circumferentially along the cover 5, ultimately forming a fan-shaped cleaning area within the cover 5. After the adsorption roller enters the inner cavity 6 of the cover 5, it first passes through the heating area and then through the cleaning area. An arc-shaped guide strip 10 is provided within the inner cavity 6 of the cover 5. The guide strip 10 extends circumferentially along the cover 5 and has protruding teeth that are evenly spaced along its length. The drive disc 4026 of the adsorption roller is provided with mating teeth, which are set on the circumferential surface of the drive disc 4026. When the adsorption arm 402 enters the inner cavity 6 of the protective cover 5, the drive disc 4026 meshes with the guide bar 10. As the adsorption arm 402 continues to move, the adsorption roller begins to rotate, so as to increase the drying effect of the adsorption roller. When it enters the cleaning area, it can also increase the thoroughness of cleaning. After the adsorption roller is cleaned, it can be re-entered into the coal chemical wastewater to continue to adsorb organic matter and heavy metal ions in the coal chemical wastewater.

[0032] In addition, the first heating component 801 in this application can also heat the carrier shell 1, thereby causing carbonates, bicarbonates and ammonia nitrogen in coal chemical wastewater to be released in the form of gas. However, it should be noted that the released gas cannot be directly discharged into the atmosphere, but needs to be treated to meet the emission standards before it can be discharged. Therefore, a cover 11 should be installed at the upper opening of the carrier shell 1. When the cover 11 covers the upper opening of the carrier shell 1, it will also cover the stirring arm located outside the protective cover 5.

[0033] In this embodiment, a support leg structure is installed at the bottom of the support shell 1, so that the support shell 1 can have a certain vertical distance from the bottom surface. The first heating component 801 can be located on the bottom surface of the support shell 1. Both the first heating component 801 and the second heating component 802 are electric heating tubes.

[0034] A support platform 12 is also provided on the outer wall of the support shell 1. A drive motor 13 is installed on the support platform 12. The output shaft of the drive motor 13 is connected to the central shaft column 2. The drive motor 13 controls the rotation of the central shaft column 2, thereby driving several stirring arms to move.

[0035] A drainage pipe can also be installed on the bearing shell 1. When the coal chemical wastewater is stored in the bearing shell 1 for a period of time and is not stirred during this period, some solid particles in the wastewater will settle, and the water above the sediment layer can be discharged.

[0036] Alternatively, two mixing components can be set up symmetrically, and the coal chemical wastewater can be treated by two sets of mixing arms.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to an electrical connection; they can refer to a hydraulic connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be primarily defined by the scope of the claims.

Claims

1. A coal chemical wastewater advanced treatment device, comprising a bearing shell (1) for bearing coal chemical wastewater, characterized in that: The bearing shell (1) is provided with a stirring assembly, which includes a protective cover (5) and a stirring arm. The protective cover (5) has an inner cavity, and the stirring arm stirs the coal chemical wastewater in the bearing shell (1). The stirring arm includes a positioning arm (401) and an adsorption arm (402). The adsorption arm (402) is used to adsorb organic matter and heavy metal ions in coal chemical wastewater. The adsorption arm (402) is hinged to the positioning arm (401). When the stirring arm is in the inner cavity, it is in a straight arm state. The protective cover (5) is provided with a heating area and a cleaning area. The adsorption arm (402) passes through the heating area and the cleaning area in sequence. After the heating area dries the adsorption arm (402), the adsorption arm (402) is cleaned in the cleaning area.

2. The deep treatment device for coal chemical wastewater according to claim 1, characterized in that: The adsorption arm (402) includes an arm (4021), on which an adsorption roller is sleeved. The adsorption roller can rotate when it moves within the inner cavity of the protective cover (5).

3. The coal chemical wastewater advanced treatment device according to claim 2, characterized in that: The adsorption roller body includes an inner sleeve (4024) and an outer roller (4025). The outer roller (4025) is made of activated carbon and is sleeved on the inner sleeve (4024). The inner sleeve (4024) is sleeved on the arm (4021). A transmission disc (4026) is fixed at the inner end of the inner sleeve (4024). The transmission disc (4026) engages with a guide strip (10). The guide strip (10) is located inside the protective cover (5).

4. The coal chemical wastewater advanced treatment device according to claim 1, characterized in that: The inner end of the adsorption arm (402) is connected to the positioning arm (401), and the adsorption arm (402) can be flipped downwards with a maximum flip angle of 45°.

5. The coal chemical wastewater advanced treatment device according to claim 1, characterized in that: The inner cavity of the protective cover (5) is provided with a guide ring (7), which can guide the adsorption arm (402) to rotate so that the adsorption arm (402) and the positioning arm (401) are on the same straight line.

6. The coal chemical wastewater advanced treatment device according to claim 5, characterized in that: The guide ring (7) includes an inner ring body (701) and an outer ring body (702), both of which are semi-circular ring bodies. The end of the outer ring body (702) is connected to the end of the inner ring body (701), and the outer ring body (702) is located outside the protective cover (5).

7. The coal chemical wastewater advanced treatment device according to claim 6, characterized in that: The plane containing the outer ring (702) forms a 45° angle with the plane containing the inner ring (701). 8.The coal chemical wastewater advanced treatment device according to claim 1, characterized in that: The cleaning area is composed of cleaning brushes (9) arranged along the circumference of the cover (5).

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