An activated carbon tower for treating salt-containing wastewater

Abstract

This utility model discloses an activated carbon tower for treating saline wastewater, belonging to the field of wastewater treatment technology. It aims to solve the technical problems of complex, time-consuming, and safety-hazardous filter media replacement operations in existing activated carbon towers. The activated carbon tower includes a load-bearing support, an activated carbon tower shell fixed thereon, and a filtration mechanism disposed inside the shell. The activated carbon tower shell has an inlet and an outlet, and a hinged door mechanism is rotatably connected to its side wall. A slide rail is fixed on the support, and the sliding assembly includes a filter container and pulleys rolled on the slide rail. This utility model fundamentally solves the problems of requiring personnel to enter for filter media replacement, cumbersome operation, and low efficiency by designing the core filtration unit as a modular structure that can be pulled out laterally. Furthermore, the double-limiting structure inside and outside ensures operational stability, resulting in extremely convenient maintenance, safety, reliability, and significantly improved work efficiency.

Description

Technical Field

[0001] This utility model relates to the fields of wastewater treatment and chemical technology, and in particular to an activated carbon tower for treating saline wastewater. Background Technology

[0002] Activated carbon adsorption is a commonly used advanced wastewater treatment technology, particularly effective in removing organic pollutants, color, and odor from water. Activated carbon towers, as the core equipment supporting activated carbon filter media, are widely used in saline wastewater treatment systems in industries such as chemical, pharmaceutical, and dyeing.

[0003] During operation, activated carbon gradually becomes saturated due to the continuous adsorption of pollutants, losing its treatment capacity. To ensure the quality of the effluent, the degraded activated carbon must be replaced or regenerated regularly. Traditional activated carbon towers are typically vertical tank structures, with the activated carbon filter media completely filled inside the tower. Manholes are provided on the top or side walls for access and operation.

[0004] However, this traditional structure reveals significant drawbacks when replacing filter media. Operators must enter the tower through a narrow manhole to perform emptying and refilling operations in a confined and humid environment. This is not only labor-intensive and inefficient, but also poses serious safety hazards due to the potential presence of harmful gases inside the tower. The entire replacement process often leads to prolonged production line downtime, impacting overall processing efficiency.

[0005] Ultimately, the aforementioned problems, such as operational difficulties, low efficiency, and safety risks, stem from the structural defects of existing activated carbon towers, where the filtration unit and tower shell are fixed as a single unit. Their design focus is generally on achieving the filtration function, while seriously neglecting the convenience and user-friendliness of subsequent maintenance operations.

[0006] Therefore, this invention proposes an activated carbon tower for treating saline wastewater to address the shortcomings of existing technologies. Utility Model Content

[0007] In view of the problems that existing activated carbon towers used for treating saline wastewater have, such as complex, time-consuming and labor-intensive internal filter material replacement and maintenance processes and safety hazards, this utility model aims to provide an activated carbon tower with an improved structure that can effectively solve the above problems for treating saline wastewater.

[0008] This utility model provides an activated carbon tower for treating saline wastewater, including a load-bearing support, an activated carbon tower shell fixedly connected to the top of the load-bearing support, and a filtration mechanism disposed inside the activated carbon tower shell; the upper part of the activated carbon tower shell has a water inlet and the lower part has a water outlet, and a hinged door mechanism is rotatably connected to its side wall.

[0009] The filtration mechanism includes a fixed bracket that is fixedly connected to the inner wall of the activated carbon tower shell, and a sliding component that slides with the fixed bracket;

[0010] The fixed bracket is fixedly connected to a slide rail by bolts;

[0011] Furthermore, the sliding assembly includes a filter container and a pulley fixed to the bottom of the filter container. The pulley is rolled on a slide rail. Through this sliding fit structure, the filter container can be pulled out or pushed into the activated carbon tower shell from the opening corresponding to the flap door mechanism.

[0012] Preferably, the sliding assembly further includes a drag handle fixedly connected to the outer wall of the filter container; a second blocking rod is fixedly connected to the end of the slide rail away from the trapdoor mechanism, which is used to limit the pulley when the sliding assembly is pushed in.

[0013] Preferably, the trapdoor mechanism includes a movable door, a door handle, and a bolt. The movable door has a cylindrical hole, and the bolt passes through the cylindrical hole and is inserted into the outer shell of the activated carbon tower to lock the movable door. A blocking rod is fixedly connected to the inner wall of the movable door. When the movable door is closed, the blocking rod is inserted into the gap of the slide rail to restrict the movement of the pulley.

[0014] Preferably, the sliding assembly further includes a clamping plate, on which pulleys are rotatably mounted, and the clamping plate is fixedly connected to the bottom of the filter container.

[0015] Preferably, the interior of the filter container is provided with an activated carbon filter, a filter layer made of quartz balls, and an isolation filter from top to bottom; the isolation filter is fixedly connected to the bottom of the filter container by two bolts.

[0016] Preferably, a funnel is fixedly connected inside the activated carbon tower shell and above the filtration mechanism, with the outlet of the funnel facing the opening of the filtration container.

[0017] Preferably, the activated carbon tower further includes a steam purging mechanism, which includes a heater, a fan, a filter screen, and a steam pipe; the air inlet of the heater is connected to a fan, the front end of the fan is provided with a filter screen, and the outlet of the heater is connected to the interior of the activated carbon tower shell through a steam pipe.

[0018] Preferably, the activated carbon tower further includes a nitrogen purging mechanism, which includes a nitrogen tank, a circular support fixed to the outer wall of the activated carbon tower shell, and a hose; the nitrogen tank is installed on the circular support, and the nitrogen tank is connected to the interior of the activated carbon tower shell through the hose.

[0019] This utility model has the following beneficial effects:

[0020] 1. This utility model, by setting a filter mechanism that can slide on a slide rail and cooperating with a flap door mechanism opened on the side wall, allows the core filter container to be pulled out from the side of the tower body in a drawer manner. This solves the problem that the replacement and maintenance of the filter material inside the activated carbon tower requires entering the tower, which is complicated, time-consuming and labor-intensive, and poses safety hazards. It achieves the technical effect of greatly simplifying the maintenance process, improving work efficiency and enhancing operational safety.

[0021] 2. This utility model solves the problem of unstable positioning and easy displacement of pull-out filter components in the working state, which affects the filtration effect, by setting an internal limiting blocking rod at the end of the slide rail and using the blocking rod on the closed movable door for external limiting. It achieves the technical effect of double locking of the filter container, ensuring its accurate and stable working position, and improving the reliability of equipment operation.

[0022] 3. This utility model solves the problem that activated carbon filter media can only be replaced offline after adsorption saturation, resulting in high operating costs and long downtime, by integrating a steam flushing mechanism and a nitrogen purging mechanism on the tower body. It achieves the technical effect of online partial regeneration of activated carbon without disassembling the filter components, extending the service life of the filter media, reducing the replacement frequency and operating costs. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of an activated carbon tower for treating saline wastewater according to the present invention.

[0024] Figure 2 This is a schematic diagram of the movable door of an activated carbon tower for treating saline wastewater according to the present invention.

[0025] Figure 3 This is a schematic diagram of the structure of the funnel of an activated carbon tower for treating saline wastewater proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of a filter container for an activated carbon tower used to treat saline wastewater, as proposed in this utility model.

[0027] Figure 5 This is a schematic diagram of the structure of the isolation filter screen of an activated carbon tower for treating saline wastewater according to the present invention.

[0028] Legend:

[0029] 1. Activated carbon tower shell; 2. Hatch mechanism; 3. Inlet; 4. Outlet; 5. Funnel; 6. Filtration mechanism; 7. Nitrogen purging mechanism; 8. Steam flushing mechanism; 9. Load-bearing support;

[0030] 21. Movable door; 22. Cylindrical hole; 23. Door handle; 24. Stop bar 1; 25. Bolt;

[0031] 61. Fixed bracket; 62. Slide rail; 63. Bolt 1; 64. Sliding assembly; 65. Stop bar 2;

[0032] 641. Filter container; 642. Drag handle; 643. Clamping plate; 644. Pulley; 645. Activated carbon filter screen; 646. Quartz ball; 647. Isolation filter screen; 648. Two bolts;

[0033] 71. Nitrogen cylinder; 72. Circular support; 73. Hoses;

[0034] 81. Heating unit; 82. Filter screen; 83. Fan; 84. Steam pipe. Detailed Implementation

[0035] Example:

[0036] Reference Figures 1 to 5 This utility model provides an activated carbon tower for treating saline wastewater, which aims to solve the problems of complex and inefficient replacement and maintenance of internal filter materials in existing activated carbon towers.

[0037] like Figure 1 As shown, the activated carbon tower for treating saline wastewater includes a load-bearing support 9 and an activated carbon tower shell 1 fixedly connected to the top of the load-bearing support 9. The activated carbon tower shell 1 has an inlet 3 at the top and an outlet 4 at the bottom. A hinged door mechanism 2 is rotatably connected to the side wall of the activated carbon tower shell 1. A filtration mechanism 6 is installed inside the activated carbon tower shell 1. The core of the filtration mechanism 6 is a pull-out structure, specifically configured as follows:

[0038] The filtration mechanism 6 includes a fixed bracket 61 and a sliding assembly 64. The fixed bracket 61 is fixedly connected to the inner wall of the activated carbon tower shell 1. Two parallel slide rails 62 are fixedly connected to the fixed bracket 61 by bolts 63. The sliding assembly 64 is slidably engaged with the slide rails 62. The sliding assembly 64 includes a filter container 641 for containing filter material. A pulley 644 is fixedly connected to the bottom of the filter container 641. The pulley 644 is rolled on the slide rails 62. This structure allows the filter container 641 to be smoothly pulled out or pushed into the interior of the activated carbon tower shell 1 from the corresponding opening of the trapdoor mechanism 2 along the length of the slide rails 62.

[0039] Reference Figure 1 , Figure 2 and Figure 4The operation and limiting structure of the sliding component 64 includes a drag handle 642 fixedly connected to the outer wall of the filter container 641 for applying push and pull force. The sliding component 64 also includes a clamping plate 643, a pulley 644 rotatably mounted on the clamping plate 643, and the clamping plate 643 fixedly connected to the bottom of the filter container 641 to provide rolling support for sliding. A second blocking rod 65 is fixedly connected to the end of the slide rail 62 away from the trapdoor mechanism 2. When the sliding component 64 is completely pushed into the activated carbon tower shell 1, the pulley 644 abuts against the second blocking rod 65, thereby achieving internal positioning of the sliding component 64.

[0040] The trapdoor mechanism 2 includes a movable door 21, a door handle 23, and a bolt 25. The movable door 21 has a cylindrical hole 22. After the movable door 21 is closed, the bolt 25 passes through the cylindrical hole 22 and engages with the activated carbon tower shell 1 to lock the movable door 21. A blocking rod 24 is fixedly connected to the inner wall of the movable door 21. When the movable door 21 is in the closed and locked state, the blocking rod 24 will be inserted into the gap of the slide rail 62 and externally limit the sliding component 64 by blocking the path of the pulley 644. This double limiting structure ensures that the sliding component 64 is stable in position during equipment operation and will not move unexpectedly.

[0041] As a specific implementation of the filtering function, refer to Figure 4 The interior of the filter container 641 is provided with an activated carbon filter 645, a filter layer composed of quartz balls 646 and an isolation filter 647 arranged from top to bottom. The isolation filter 647 is fixedly connected to the bottom of the filter container 641 by bolts 648.

[0042] In order to achieve the diversion and buffering of incoming wastewater, refer to Figure 3 Inside the activated carbon tower shell 1 and above the filtration mechanism 6, a funnel 5 is fixedly connected, with the outlet of the funnel 5 facing the opening of the filtration container 641.

[0043] To enable online cleaning of the activated carbon filter 645, the activated carbon tower also includes a steam rinsing mechanism 8, as described above. Figure 1 The steam purging mechanism 8 includes a heater 81, a fan 83, a filter screen 82, and a steam pipe 84. The air inlet of the heater 81 is connected to the fan 83, and the front end of the fan 83 is provided with a filter screen 82. The outlet of the heater 81 is connected to the interior of the activated carbon tower shell 1 through the steam pipe 84.

[0044] As another online cleaning method, the activated carbon tower also includes a nitrogen purging mechanism 7, which includes a nitrogen tank 71, a circular bracket 72 fixed to the outer wall of the activated carbon tower shell 1, and a hose 73. The nitrogen tank 71 is installed on the circular bracket 72, and the nitrogen tank 71 is connected to the interior of the activated carbon tower shell 1 through the hose 73.

[0045] The working principle is as follows:

[0046] During wastewater treatment, saline wastewater enters the interior of the activated carbon tower shell 1, supported by the load-bearing bracket 9, through the inlet 3. The wastewater first collects at the funnel 5 and flows evenly into the sliding component 64 of the filter mechanism 6 below through its guide. Inside the filter container 641, the wastewater passes through the activated carbon filter screen 645 and the filter layer composed of quartz balls 646 from top to bottom, completing the adsorption and filtration of impurities. Subsequently, the wastewater continues to pass through the isolation filter screen 647, which is fixed to the bottom of the container by bolt 648. Finally, the treated water flows out from the outlet 4.

[0047] When the filter material needs to be inspected or replaced, first pull the plug 25 out of the cylindrical hole 22 of the movable door 21, open the movable door 21 using the door handle 23, and then the operator holds the drag handle 642 and applies force outward, so that the pulley 644 at the bottom of the filter container 641 slides outward along the slide rail 62 on the fixed bracket 61, thereby moving the entire sliding assembly 64 out of the activated carbon tower shell 1. After replacing the activated carbon filter screen 645 and quartz ball 646, push the sliding assembly 64 in the opposite direction until the pulley 644 is stopped by the second blocking rod 65 at the inner end of the slide rail 62. Close the movable door 21 and insert the plug 25 to lock it. At this time, the first blocking rod 24 on the inner wall of the movable door 21 forms an external limit on the pulley 644. Through this double limit method, the problem of difficult maintenance of traditional activated carbon towers is solved.

[0048] When the activated carbon filter 645 does not need to be replaced but only needs to be cleaned online, the steam flushing mechanism 8 can be started. The fan 83 draws air through the filter 82 into the heater 81, heats it to generate steam, and then sprays it into the tower through the steam pipe 84 to flush the activated carbon filter 645. Alternatively, the nitrogen purging mechanism 7 can be started to inject nitrogen from the nitrogen tank 71 into the tower through the hose 73 to purge the activated carbon filter 645.

Claims

1. An activated carbon tower for treating saline wastewater, comprising: Load-bearing bracket (9); The activated carbon tower shell (1) is fixedly connected to the top of the load-bearing support (9). The upper part of the activated carbon tower shell (1) is provided with a water inlet (3) and the lower part is provided with a water outlet (4). A flap door mechanism (2) is rotatably connected to its side wall. A filtration mechanism (6) is disposed inside the outer shell (1) of the activated carbon tower; Its features are, The filtration mechanism (6) includes a fixed bracket (61) fixedly connected to the inner wall of the activated carbon tower shell (1). A slide rail (62) is fixedly connected to the fixed bracket (61) by a bolt (63). The filtration mechanism (6) also includes a sliding component (64) that slides with the slide rail (62). The sliding assembly (64) includes a filter container (641) and a pulley (644) fixed to the bottom of the filter container (641). The pulley (644) can roll along the length of the slide rail (62) so that the filter container (641) can be pulled out or pushed into the activated carbon tower shell (1) from the opening corresponding to the flap door mechanism (2).

2. The activated carbon tower for treating saline wastewater according to claim 1, characterized in that, The sliding assembly (64) also includes a drag handle (642) fixedly connected to the outer wall of the filter container (641); a second blocking rod (65) is fixedly connected to one end of the slide rail (62) away from the trapdoor mechanism (2), and the second blocking rod (65) is used to limit the pulley (644) when the sliding assembly (64) is pushed in.

3. The activated carbon tower for treating saline wastewater according to claim 1, characterized in that, The trapdoor mechanism (2) includes a movable door (21), a door handle (23), and a bolt (25). The movable door (21) has a cylindrical hole (22). The bolt (25) passes through the cylindrical hole (22) and is inserted into the activated carbon tower shell (1) to lock the movable door (21). A blocking rod (24) is fixedly connected to the inner wall of the movable door (21). When the movable door (21) is closed, the blocking rod (24) is inserted into the gap of the slide rail (62) to restrict the movement of the pulley (644).

4. The activated carbon tower for treating saline wastewater according to claim 1, characterized in that, The sliding assembly (64) further includes a clamping plate (643), the pulley (644) is rotatably mounted on the clamping plate (643), and the clamping plate (643) is fixedly connected to the bottom of the filter container (641).

5. The activated carbon tower for treating saline wastewater according to claim 1, characterized in that, The filter container (641) is provided with an activated carbon filter (645), a filter layer composed of quartz balls (646) and an isolation filter (647) arranged from top to bottom inside the filter container (641); the isolation filter (647) is fixedly connected to the bottom of the filter container (641) by bolt two (648).

6. The activated carbon tower for treating saline wastewater according to claim 1, characterized in that, A funnel (5) is fixedly connected inside the activated carbon tower shell (1) and above the filter mechanism (6), with the outlet of the funnel (5) facing the opening of the filter container (641).

7. The activated carbon tower for treating saline wastewater according to claim 1, characterized in that, It also includes a steam rinsing mechanism (8), which includes a heater (81), a fan (83), a filter screen (82) and a steam pipe (84); the air inlet of the heater (81) is connected to the fan (83), the front end of the fan (83) is provided with the filter screen (82), and the outlet of the heater (81) is connected to the interior of the activated carbon tower shell (1) through the steam pipe (84).

8. The activated carbon tower for treating saline wastewater according to claim 1, characterized in that, It also includes a nitrogen purging mechanism (7), which includes a nitrogen tank (71), a circular bracket (72) fixed to the outer wall of the activated carbon tower shell (1), and a hose (73); the nitrogen tank (71) is installed on the circular bracket (72), and the nitrogen tank (71) is connected to the interior of the activated carbon tower shell (1) through the hose (73).

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