Deep adsorption treatment device for chemical wastewater

Abstract

The utility model discloses a deep adsorption treatment device for chemical wastewater, which relates to the technical field of chemical wastewater treatment and comprises a treatment pond, a pretreatment unit and a deep adsorption unit. According to the chemical wastewater treatment device, the interior of the treatment tank is divided into three tank bodies by the separation frame, chemical wastewater to be treated flows downwards step by step along the step plates in the treatment tank, and the chemical wastewater can be subjected to multi-stage filtration by arranging different filtering boxes at the three tank bodies respectively, so that deep adsorption treatment on the wastewater is realized; therefore, various harmful impurities in the wastewater are effectively filtered out; a reliable pretreatment unit is also arranged, so that the flow rate of the wastewater can be reduced in advance, substances in the wastewater can be sufficiently adsorbed subsequently, and heat in the wastewater can be recycled; and a filter screen frame is arranged, so that large-particle impurities can be filtered and are prevented from entering a subsequent process to cause blockage, and the practicability of the device is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of chemical wastewater treatment technology, specifically to a deep adsorption treatment device for chemical wastewater. Background Technology

[0002] Chemical wastewater refers to process wastewater, cooling water, exhaust gas scrubbing water, and equipment and site washing water discharged during chemical production. If this wastewater is discharged without treatment, it will cause varying degrees of pollution to water bodies, thereby endangering human health and affecting industrial and agricultural production. Therefore, all chemical enterprises need to be equipped with appropriate wastewater treatment devices.

[0003] Existing chemical wastewater treatment devices often use a single adsorption material, resulting in a relatively simple treatment effect on the wastewater. They cannot effectively adsorb and treat various harmful impurities contained in chemical wastewater. Furthermore, the lack of pretreatment measures for chemical wastewater can lead to problems such as excessively fast wastewater flow rates, high temperatures, and blockage by impurities. Therefore, we propose a deep adsorption treatment device for chemical wastewater. Utility Model Content

[0004] The technical problem this invention aims to solve is to overcome existing defects and provide a deep adsorption treatment device for chemical wastewater. A partition frame divides the treatment tank into three sections. The chemical wastewater to be treated flows downwards along stepped plates within the treatment tank. By installing different filter boxes in each of the three sections, multi-stage filtration of the chemical wastewater can be achieved, realizing deep adsorption treatment and effectively filtering out various harmful impurities. A reliable pretreatment unit is also included, which reduces the flow rate of the wastewater to ensure sufficient adsorption of substances in the wastewater and recovers heat from the wastewater. Furthermore, the filter screen can filter large particles, preventing them from clogging subsequent processes, effectively improving the practicality of the device and solving the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a deep adsorption treatment device for chemical wastewater, comprising a treatment tank, a pretreatment unit, and a deep adsorption unit;

[0006] Processing tank: It has a rectangular structure and a feed hopper is fixedly connected to the upper front side;

[0007] Pre-treatment unit: installed at the feed hopper;

[0008] The deep adsorption unit comprises a partition frame, a mounting plate, a primary filter box, a secondary filter box, a tertiary filter box, fixing bolts, and a hand gripping groove. The interior of the treatment tank has a three-section stepped structure, with a partition frame integrally fixed to the edge of each layer. A row of water passage holes is opened at the upper position of the partition frame, which divides the interior of the treatment tank into three tanks. The primary, secondary, and tertiary filter boxes are installed sequentially from front to back on the upper side of the three tanks. Each box is inserted into the mounting plate, and the lower end of the box is connected to the bottom of the tank. The primary filter box is filled with modified activated carbon, the secondary filter box is filled with ion exchange resin, and the tertiary filter box is filled with MOF material. Each box is located in the middle of the current tank and has fine holes at both ends. The two ends of the mounting plate are fixed to the upper sides of the treatment tank by fixing bolts, and a hand gripping groove is opened at the end of the mounting plate.

[0009] The partition frame divides the treatment tank into three sections. The chemical wastewater to be treated flows downwards along the stepped plates within the tank. By installing different filter cartridges in each of the three sections, multi-stage filtration of the chemical wastewater can be achieved, realizing deep adsorption treatment and effectively filtering out various harmful impurities: the first-stage filter cartridge is filled with modified activated carbon to adsorb large organic molecules; the second-stage filter cartridge is filled with ion exchange resin to adsorb heavy metal ions; and the third-stage filter cartridge is filled with MOF material to adsorb recalcitrant micro-pollutants. Each cartridge is inserted into a mounting plate, which is secured with bolts. By installing the filter cartridges in the middle of each section, a treatment area and a completion area can be defined within each section, ensuring the precision of each stage of adsorption and filtration. A hand grip allows for easy handling and removal of the filter cartridges for replacement after a certain period of use.

[0010] Furthermore, the pretreatment unit includes buffer wheels and heat-conducting copper pipes. The feed hopper consists of a front flat section and a rear inclined section. Two buffer wheels are rotatably connected to the rear inclined section. Each buffer wheel consists of a central rotating shaft and an outer circumferential array of metal plates. A heat-conducting copper pipe extends from the center of the rotating shaft. By setting up buffer wheels, the water flowing into the feed hopper first impacts the buffer wheels, thereby slowing down the flow rate of the wastewater and ensuring sufficient adsorption of substances in the wastewater. Moreover, by setting up heat-conducting copper pipes, in conjunction with the metal blades on the buffer wheels, heat in the chemical wastewater can be recovered and utilized, achieving certain environmental protection and energy-saving effects.

[0011] Furthermore, the pretreatment unit also includes a hot water exchange tank and an outer protective sleeve. The hot water exchange tank is located on the lower side of the feed hopper, and two support rods are fixedly connected to the front of the treatment tank. The support rods support the lower side of the hot water exchange tank, and heat-conducting copper pipes extending from the two buffer wheels extend downward into the interior of the hot water exchange tank. An outer protective sleeve is fitted over the outside of each heat-conducting copper pipe. The heat conducted by the heat-conducting copper pipes is exchanged in the hot water exchange tank. The outer protective sleeve can prevent heat loss and prevent external personnel from accidentally touching the copper pipes and getting burned.

[0012] Furthermore, the pretreatment unit also includes a filter frame and hydraulic cylinders. A filter frame is installed at the junction of the feed hopper and the treatment tank. The filter frame consists of a vertical section and a lower inclined section. The lower inclined section hooks upwards and fits against the bottom surface of the inclined section of the feed hopper. A hydraulic cylinder is embedded in the upper part of each of the left and right sides of the treatment tank, near the filter frame. The telescopic ends of the hydraulic cylinders face upwards and are fixedly connected to the left and right sides of the filter frame. By installing a filter frame at the feed hopper, large particulate matter in the wastewater can be effectively filtered out, preventing blockage at subsequent filtration devices. The slightly hooked structure at the lower end of the filter frame effectively intercepts impurity particles. The hydraulic cylinders control the raising and lowering of the filter frame to clean the impurities intercepted by the filter frame after a certain period of time.

[0013] Furthermore, the pretreatment unit also includes a storage box and a mounting bracket. An open storage box is installed on each of the left and right sides of the treatment tank, near the filter frame. The mounting bracket supports the lower side of the storage box and is fixedly connected to the treatment tank. When the filter frame is raised, operators can use tools such as rakes to push the debris inside into the storage boxes on both sides, thereby cleaning the debris at the filter frame.

[0014] Furthermore, the deep adsorption unit also includes a discharge pipe and a rotary valve. The discharge pipe is fixedly connected to the bottom rear side of the treatment tank, and a rotary valve is installed at the connection point between the discharge pipe and the treatment tank. The discharge pipe is used to discharge the deep-treated wastewater, and the rotary valve is used to control the opening and closing of the discharge pipe.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This deep adsorption treatment device for chemical wastewater has the following advantages:

[0016] 1. The partition frame divides the treatment tank into three tanks. The chemical wastewater to be treated flows down the steps in the treatment tank. By setting different filter boxes in the three tanks, the chemical wastewater can be filtered in multiple stages to achieve deep adsorption treatment of the wastewater, thereby effectively filtering out various harmful impurities in the wastewater.

[0017] 2. It is equipped with a reliable pretreatment unit, which can reduce the flow rate of wastewater in advance to ensure sufficient adsorption of substances in the wastewater and recover and utilize the heat in the wastewater; and by setting up a filter screen, it can filter out large particles of debris and prevent them from entering the subsequent process and causing blockage.

[0018] 3. In this utility model, the partition frame divides the treatment tank into three tanks. The chemical wastewater to be treated flows down the stepped plate in the treatment tank step by step. By setting different filter boxes in the three tanks, the chemical wastewater can be filtered in multiple stages to achieve deep adsorption treatment of the wastewater, thereby effectively filtering out various harmful impurities in the wastewater. A reliable pretreatment unit is also set up to reduce the flow rate of the wastewater in advance to ensure sufficient adsorption of substances in the wastewater in the subsequent process and to recover and utilize the heat in the wastewater. Furthermore, by setting up a filter screen frame, large particulate impurities can be filtered to prevent them from entering the subsequent process and causing blockage, which effectively improves the practicality of this device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a partial structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the upper structure of this utility model.

[0022] In the diagram: 1. Treatment tank, 2. Feed hopper, 3. Pretreatment unit, 31. Buffer wheel, 32. Heat-conducting copper pipe, 33. Hot water exchange tank, 34. Outer protective sleeve, 35. Filter screen frame, 36. Hydraulic cylinder, 37. Storage box, 38. Mounting bracket, 4. Deep adsorption unit, 41. Divider frame, 42. Mounting plate, 43. Primary filter box, 44. Secondary filter box, 45. Tertiary filter box, 46. Fixing bolt, 47. Hand gripper groove, 48. Discharge pipe, 49. Rotary valve. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-3 This embodiment provides a technical solution: a deep adsorption treatment device for chemical wastewater, including a treatment tank 1, a pretreatment unit 3 and a deep adsorption unit 4;

[0025] Processing tank 1: It has a rectangular structure and a feed hopper 2 is fixedly connected to the upper front end;

[0026] Pre-treatment unit 3: installed at feed hopper 2;

[0027] Deep adsorption unit 4 includes a partition frame 41, a mounting plate 42, a primary filter box 43, a secondary filter box 44, a tertiary filter box 45, fixing bolts 46, and a hand gripping groove 47. The interior of the treatment tank 1 has a three-section stepped structure. The edge of each layer is integrally fixedly connected to the partition frame 41. A row of water passage holes is opened at the upper position of the partition frame 41. The partition frame 41 divides the interior of the treatment tank 1 into three tanks. The primary filter box 43, the secondary filter box 44, and the tertiary filter box 45 are installed in the three tanks from front to back. On the upper side, each box is inserted into the interior of a mounting plate 42, and the lower end of the box is connected to the bottom of the pool. The interior of the first-stage filter box 43 is filled with modified activated carbon, the interior of the second-stage filter box 44 is filled with ion exchange resin, and the interior of the third-stage filter box 45 is filled with MOF material. Each box is distributed in the middle of the current pool, and fine holes are opened at both the front and rear ends. The two ends of the mounting plate 42 are fixed to the upper sides of the treatment pool 1 by fixing bolts 46, and a hand gripping groove 47 is opened at the end of the mounting plate 42.

[0028] The partition frame 41 divides the interior of the treatment tank 1 into three tanks. The chemical wastewater to be treated flows downwards along the stepped plate inside the treatment tank 1. By setting different filter boxes in each of the three tanks, the chemical wastewater can be filtered in multiple stages to achieve deep adsorption treatment, thereby effectively filtering out various harmful impurities in the wastewater: the first-stage filter box 43 is filled with modified activated carbon to adsorb large molecular organic matter; the second-stage filter box 44 is filled with ion exchange resin to adsorb heavy metal ions; and the third-stage filter box 45 is filled with MOF material to adsorb recalcitrant micro-pollutants. Each box is inserted into a mounting plate 42, and fixing bolts 46 are used to fix the mounting plate 42. By installing the filter box in the middle of each tank, the treatment area and the finished area can be divided in each tank to ensure the fineness of each stage of adsorption filtration. The hand grip groove 47 allows for easy hand gripping so that the filter box can be removed and replaced after a certain period of use.

[0029] The pretreatment unit 3 includes buffer wheels 31 and heat-conducting copper pipes 32. The feed hopper 2 consists of a front flat section and a rear inclined section. Two buffer wheels 31 are rotatably connected to the rear inclined section. Each buffer wheel 31 consists of a central rotating shaft and an outer circumferential array of metal plates. A heat-conducting copper pipe 32 extends from the center of the rotating shaft. By setting up the buffer wheels 31, the water flowing into the feed hopper 2 will first impact the buffer wheels 31, thereby slowing down the flow rate of the wastewater and ensuring the full adsorption of substances in the wastewater. Furthermore, by setting up the heat-conducting copper pipes 32, in conjunction with the metal blades on the buffer wheels 31, the heat in the chemical wastewater can be recovered and utilized, achieving a certain degree of environmental protection and energy saving.

[0030] The pretreatment unit 3 also includes a hot water exchange tank 33 and an outer protective sleeve 34. The hot water exchange tank 33 is located on the lower side of the feed hopper 2. Two support rods are fixedly connected to the front side of the treatment tank 1, supporting the lower side of the hot water exchange tank 33. The heat-conducting copper pipes 32 leading out from the two buffer wheels 31 extend downward into the interior of the hot water exchange tank 33, and an outer protective sleeve 34 is fitted over the outside of each heat-conducting copper pipe 32. The heat conducted by the heat-conducting copper pipes 32 is exchanged in the hot water exchange tank 33. The outer protective sleeve 34 can prevent heat loss and prevent external personnel from accidentally touching the copper pipes and getting burned.

[0031] The pretreatment unit 3 also includes a filter frame 35 and a hydraulic cylinder 36. A filter frame 35 is installed at the junction of the feed hopper 2 and the treatment tank 1. The filter frame 35 consists of a vertical section and a lower inclined section. The lower inclined section hooks upwards and fits against the bottom surface of the inclined section of the feed hopper 2. A hydraulic cylinder 36 is embedded in the upper part of both sides of the treatment tank 1, near the filter frame 35. The telescopic ends of the hydraulic cylinders 36 face upwards and are fixedly connected to the left and right sides of the filter frame 35. By setting the filter frame 35 at the feed hopper 2, large particulate matter in the wastewater can be effectively filtered out, preventing large particulate matter from clogging subsequent filtration devices. The slightly hooked structure at the lower end of the filter frame 35 can effectively intercept impurity particles. The hydraulic cylinder 36 can control the lifting and lowering of the filter frame 35 to clean the impurities intercepted by the filter frame 35 after a certain period of time.

[0032] The pretreatment unit 3 also includes a storage box 37 and a mounting bracket 38. An open storage box 37 is installed on each of the left and right sides of the treatment pool 1, near the filter frame 35. The mounting bracket 38 supports the lower side of the storage box 37 and is fixedly connected to the treatment pool 1. When the filter frame 35 is raised, operators can use tools such as rakes to push the debris inside into the storage boxes 37, thus cleaning the debris from the filter frame 35.

[0033] The deep adsorption unit 4 also includes a discharge pipe 48 and a rotary valve 49. The discharge pipe 48 is fixedly connected to the bottom rear side of the treatment tank 1, and the rotary valve 49 is installed at the connection point between the discharge pipe 48 and the treatment tank 1. The discharge pipe 48 is used to discharge the deep-treated wastewater, and the rotary valve 49 is used to control the opening and closing of the discharge pipe 48.

[0034] The working principle of the deep adsorption treatment device for chemical wastewater provided by this utility model is as follows: This device has a reliable deep adsorption unit 4, and a partition frame 41 divides the treatment tank 1 into three tanks. The chemical wastewater to be treated flows down the stepped plate in the treatment tank 1 step by step. By setting different filter boxes in the three tanks, the chemical wastewater can be filtered in multiple stages to achieve deep adsorption treatment of the wastewater, thereby effectively filtering out various harmful impurities in the wastewater: the first-stage filter box 43 is filled with modified activated carbon for adsorbing large molecular organic matter; the second-stage filter box 44 is filled with ion exchange resin for adsorbing heavy metal ions; and the third-stage filter box 45 is filled with MOF material for adsorbing recalcitrant micro-pollutants. Each box is inserted into a mounting plate 42, and fixing bolts 46 are used to fix the mounting plate 42. By installing the filter box in the middle of each tank, the treatment area and the completed area can be divided in each tank to ensure the fineness of each stage of adsorption filtration. The hand grip groove 47 allows for easy hand gripping so that the filter box can be removed and replaced after a certain period of use. This device also includes a reliable pretreatment unit 3, which can reduce the flow rate of wastewater in advance to ensure sufficient adsorption of substances in the wastewater and recover and utilize the heat in the wastewater. Furthermore, by setting up a filter screen 35, large particles can be filtered to prevent blockage at subsequent processes, effectively improving the practicality of the device. By setting up a buffer wheel 31, the water flowing into the feed hopper 2 will first impact the buffer wheel 31, thereby slowing down the flow rate of the wastewater and ensuring sufficient adsorption of substances in the wastewater. Moreover, by setting up a heat-conducting copper pipe 32, in conjunction with the metal blades on the buffer wheel 31, the heat in the chemical wastewater can be recovered and utilized, achieving a certain degree of environmental protection and energy saving. The heat conducted by the heat-conducting copper pipe 32... Heat exchange takes place in the hot water tank 33. The outer protective sleeve 34 prevents heat loss and protects personnel from burns caused by accidental contact with the copper pipes. A filter screen 35 at the feed hopper 2 effectively filters out large particles in the wastewater, preventing blockage at subsequent filtration stages. The slightly hooked lower end of the filter screen 35 effectively traps debris. A hydraulic cylinder 36 controls the raising and lowering of the filter screen 35 to clean the trapped debris after a certain period. When the filter screen 35 is raised, operators can use tools such as rakes to push the debris from the inside to the sides into the storage box 37, thus cleaning the filter screen 35. Furthermore, a discharge pipe 48 discharges the deeply treated wastewater, and a rotary valve 49 controls the opening and closing of the discharge pipe 48.

[0035] It is worth noting that the input end of the hydraulic cylinder 36 disclosed in the above embodiments is electrically connected to the output end of an external power supply through an external control switch group, and the control switch group controls the operation of the hydraulic cylinder 36 using a method commonly used in the prior art.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A deep adsorption treatment device for chemical wastewater, characterized in that: It includes a treatment tank (1), a pretreatment unit (3), and a deep adsorption unit (4); Processing tank (1): It has a rectangular structure and a feed hopper (2) is fixedly connected to the upper front end. Pre-treatment unit (3): installed at the feed hopper (2); The deep adsorption unit (4) includes a partition frame (41), a mounting plate (42), a primary filter box (43), a secondary filter box (44), a tertiary filter box (45), fixing bolts (46), and a hand gripping groove (47). The interior of the treatment tank (1) is a three-section stepped structure. The edge of each layer is integrally fixedly connected to the partition frame (41). A row of water passage holes is opened at the upper position of the partition frame (41). The partition frame (41) divides the interior of the treatment tank (1) into three tanks. The primary filter box (43), the secondary filter box (44), and the tertiary filter box (45) are arranged from front to back. The first stage filter box (43) is installed on the upper side of the three pools. Each box is inserted into the inside of a mounting plate (42), and the lower end of the box is connected to the bottom of the pool. The first stage filter box (43) is filled with modified activated carbon, the second stage filter box (44) is filled with ion exchange resin, and the third stage filter box (45) is filled with MOF material. Each box is distributed in the middle of the current pool and has fine holes at both the front and rear ends. The two ends of the mounting plate (42) are fixed to the upper sides of the treatment pool (1) by fixing bolts (46), and a hand grip groove (47) is provided at the end of the mounting plate (42).

2. The deep adsorption treatment device for chemical wastewater according to claim 1, characterized in that: The pretreatment unit (3) includes a buffer wheel (31) and a heat-conducting copper pipe (32). The feed hopper (2) consists of a front flat section and a rear inclined section. Two buffer wheels (31) are rotatably connected at the rear inclined section. The buffer wheel (31) consists of a central rotating shaft and a metal plate arranged in a circular array on the outer side. A heat-conducting copper pipe (32) is led out from the center of the rotating shaft.

3. The deep adsorption treatment device for chemical wastewater according to claim 2, characterized in that: The pretreatment unit (3) also includes a hot water tank (33) and an outer protective sleeve (34). The hot water tank (33) is provided on the lower side of the feed hopper (2). Two support rods are fixedly connected to the front side of the treatment tank (1). The support rods support the lower side of the hot water tank (33). The heat-conducting copper pipes (32) led out from the two buffer wheels (31) are inserted into the interior of the hot water tank (33). An outer protective sleeve (34) is fitted on the outside of each heat-conducting copper pipe (32).

4. The deep adsorption treatment device for chemical wastewater according to claim 3, characterized in that: The pretreatment unit (3) also includes a filter screen frame (35) and a hydraulic cylinder (36). A filter screen frame (35) is installed at the junction of the feed hopper (2) and the treatment pool (1). The filter screen frame (35) consists of a vertical section and a lower inclined section. The lower inclined section is hooked upward and fits against the bottom surface of the inclined section of the feed hopper (2). A hydraulic cylinder (36) is embedded at the upper end of the left and right sides of the treatment pool (1) and near the filter screen frame (35). The telescopic end of the hydraulic cylinder (36) faces upward and is fixedly connected to the left and right sides of the filter screen frame (35).

5. The deep adsorption treatment device for chemical wastewater according to claim 4, characterized in that: The pretreatment unit (3) also includes a storage box (37) and a mounting bracket (38). An open storage box (37) is installed on both the left and right sides of the treatment pool (1) and near the filter frame (35). The mounting bracket (38) is supported on the lower side of the storage box (37) and is fixedly connected to the treatment pool (1).

6. The deep adsorption treatment device for chemical wastewater according to claim 1, characterized in that: The deep adsorption unit (4) also includes a discharge pipe (48) and a rotary valve (49). The discharge pipe (48) is fixedly connected to the bottom rear side of the treatment tank (1), and a rotary valve (49) is installed at the connection between the discharge pipe (48) and the treatment tank (1).

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