Wastewater comprehensive treatment equipment for PCB (Printed Circuit Board) processing
By introducing scrapers, stirring blades, and spiral propulsion rods into the PCB wastewater treatment equipment, the problems of inconvenient sediment cleaning and uneven mixing are solved, achieving uniform distribution and efficient sedimentation of the precipitant and improving the wastewater treatment effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN ZHONGGUAN ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-04-24
AI Technical Summary
Traditional PCB wastewater treatment equipment is not convenient for cleaning sediments. During the sedimentation process, the wastewater and the precipitant are not mixed evenly, resulting in incomplete precipitation of heavy metal pollutants.
An integrated treatment device including a scraper, stirring blades, and a spiral propeller was designed. The scraper cleans up the sediment, the stirring blades agitate the wastewater, and the spiral propeller evenly adds the precipitant, ensuring that the wastewater and precipitant are fully mixed.
It improves the convenience and efficiency of sediment removal, ensures uniform distribution of the precipitant, prevents incomplete precipitation of heavy metal pollutants, and enhances wastewater treatment efficiency.
Smart Images

Figure CN224160459U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, and more specifically, to a comprehensive wastewater treatment device for PCB processing. Background Technology
[0002] With the rapid development of the electronics industry, the scale of printed circuit board (PCB) manufacturing has continued to expand, and the wastewater pollution problem generated during PCB processing has become increasingly serious. PCB production involves multiple complex processes, such as drilling, etching, electroplating, developing, and stripping. Each step generates a large amount of high-concentration wastewater containing heavy metals, organic pollutants, acidic and alkaline substances, and suspended solids. This type of wastewater has a complex composition and is highly toxic. If it is discharged directly without effective treatment, it will not only seriously pollute the aquatic environment but may also harm human health through the food chain. Currently, PCB wastewater treatment mainly adopts a combination of physical and chemical treatment processes. Among them, chemical precipitation has become the mainstream technology due to its simple operation and low cost. However, traditional wastewater treatment equipment is not convenient for workers to clean the sediment at the bottom of the tank, and uneven mixing of wastewater and precipitant during the sedimentation process can easily lead to incomplete precipitation of heavy metal pollutants. Utility Model Content
[0003] In view of the aforementioned problems, and in conjunction with the first aspect of this utility model, the present utility model provides a comprehensive wastewater treatment device for PCB processing, achieved by the following specific technical means:
[0004] A comprehensive wastewater treatment device for PCB processing includes a base plate, a treatment box, and a box cover. The treatment box is located on the top of the base plate, and a treatment chamber is located inside the treatment box. The box cover is located on the top of the treatment box, and a scraper is located inside the treatment box. A baffle is located on one side of the treatment box, and a feeding pipe and a material cylinder are located on one side of the treatment box. A first motor is located on one side of the feeding pipe, and a spiral propulsion rod is located inside the feeding pipe.
[0005] The processing tank is equipped with a water pump and a water pipe at one end. A second motor is installed on the top of the tank cover. A transmission rod is installed at the bottom of the second motor. Multiple sets of stirring blades are installed on the transmission rod.
[0006] According to a preferred embodiment, a bracket is fixedly connected to the top of the base plate, an mounting plate is fixedly connected to the bracket, the first motor is fixedly connected to the top of the mounting plate, the material cylinder is clamped on the top of the bracket, the bottom of the material cylinder is detachably connected to the feeding pipe, one side of the feeding pipe communicates with the processing chamber, and a cylinder cover is detachably connected to the top of the material cylinder by screws.
[0007] According to a preferred embodiment, a connecting hole is provided on one side of the feeding pipe, the main shaft of the first motor passes through the connecting hole, and a spiral push rod is sleeved on one side of the first motor, with spiral blades integrally formed on the spiral push rod.
[0008] According to a preferred embodiment, a connecting rod is fixedly connected between the scraper and the baffle. Limiting grooves are provided at both ends of the processing chamber. The two sets of connecting rods are respectively engaged in the two sets of limiting grooves. A sealing ring is provided on one side of the baffle, and a handle is provided on one side of the baffle.
[0009] According to a preferred embodiment, the box cover is snapped onto the top of the processing box, and a second motor is detachably connected to the top of the box cover. The transmission rod is connected to the main shaft of the second motor, and multiple sets of stirring blades are sleeved on the transmission rod.
[0010] According to a preferred embodiment, a mounting platform is provided on the top of the base plate, and the water pump is fixedly connected to the top of the mounting platform. The water pumping pipe is fixedly connected to one end of the treatment tank, and one end of the water pumping pipe is connected to the water pump through a first flange.
[0011] According to a preferred embodiment, the treatment box has a water inlet at one end, a water inlet pipe is fixedly connected to one end of the water inlet, and a second flange is detachably connected to one end of the water inlet pipe.
[0012] According to a preferred embodiment, the bottom of the processing box is fixedly connected to multiple sets of support legs.
[0013] Based on the above aspects, this utility model has the following beneficial effects:
[0014] First, when the user cleans the sediment at the bottom of the treatment tank, they open the baffle and pull it out using the handle. The baffle, along with the connecting rod, pulls the scraper out along the direction of the limiting groove. The bottom of the scraper fits into the treatment chamber, scraping away the sediment, which improves the convenience and efficiency of sediment cleaning. Second, the second motor drives the stirring blades to stir the wastewater, ensuring thorough mixing of the wastewater and the precipitant. Simultaneously, the first motor drives the spiral propeller to rotate, evenly adding the precipitant into the treatment chamber, resulting in a more uniform distribution of the precipitant and preventing incomplete sedimentation of heavy metal pollutants in the wastewater. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a comprehensive wastewater treatment device for PCB processing provided in an embodiment of this utility model;
[0016] Figure 2 This is an exploded view of a comprehensive wastewater treatment device for PCB processing provided in an embodiment of this utility model;
[0017] Figure 3 This is a schematic diagram of the treatment chamber in a comprehensive wastewater treatment device for PCB processing provided in this embodiment of the utility model;
[0018] Figure 4 This is a schematic diagram of the feeding pipe in a comprehensive wastewater treatment device for PCB processing provided in this embodiment of the utility model.
[0019] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0020] 100. Base plate; 101. Processing box; 102. Box cover; 103. Processing chamber; 104. Scraper; 105. Baffle; 106. Feeding pipe; 107. Material cylinder; 108. First motor; 109. Screw propeller; 110. Water pump pipe; 111. Water pump; 112. Second motor; 113. Transmission rod; 114. Mixing blade; 115. Support; 116. Mounting plate; 117. Cylinder cover; 118. Connecting rod; 119. Limiting groove; 120. Water inlet pipe; 121. Handle. Detailed Implementation
[0021] The present invention will now be described in detail with reference to the accompanying drawings. Figure 1 This is a schematic diagram of the structure of a comprehensive wastewater treatment device for PCB processing provided in an embodiment of this utility model. Figure 2 This is an exploded view of a comprehensive wastewater treatment device for PCB manufacturing provided in an embodiment of this utility model. Figure 3 This is a schematic diagram of the treatment chamber in a comprehensive wastewater treatment device for PCB manufacturing provided in this embodiment of the utility model. Figure 4 This is a schematic diagram of the feeding pipe in a comprehensive wastewater treatment device for PCB processing provided by an embodiment of this utility model. The following is a detailed description of this comprehensive wastewater treatment device for PCB processing.
[0022] A comprehensive wastewater treatment device for PCB processing includes a base plate 100, a treatment tank 101, and a tank cover 102. The treatment tank 101 is located on the top of the base plate 100. The treatment tank 101 contains a treatment chamber 103, which is used for the wastewater to fully react with a precipitant. The precipitate after precipitation accumulates at the bottom of the treatment chamber 103. The tank cover 102 is located on the top of the treatment tank 101 to prevent the wastewater in the treatment tank 101 from splashing into the outside environment and polluting it. A scraper 104 is located inside the treatment tank 101. A baffle 105 is located on one side of the treatment tank 101. A feeding pipe 106 and a material cylinder 107 are located on one side of the treatment tank 101. The material cylinder 107 contains a precipitant for reacting with the wastewater. A first motor 108 is located on one side of the feeding pipe 106. A spiral propulsion rod 109 is located inside the feeding pipe 106.
[0023] The processing tank 101 is equipped with a water pump 110 and a water pump 111 at one end. The top of the tank cover 102 is equipped with a second motor 112. The bottom of the second motor 112 is equipped with a transmission rod 113. Multiple sets of stirring blades 114 are installed on the transmission rod 113.
[0024] A bracket 115 is fixedly connected to the top of the base plate 100. A reinforcing rod can be installed at the bottom of the bracket 115 to make the support effect of the bracket 115 more stable. During the operation of the first motor 108, the material cylinder 107 is less likely to be displaced relative to the first motor 108 and the feeding pipe 106, which improves the stability of the equipment. A mounting plate 116 is fixedly connected to the bracket 115. The first motor 108 is fixedly connected to the top of the mounting plate 116. The material cylinder 107 is clamped at the top of the bracket 115. The bottom of the material cylinder 107 is detachably connected to the feeding pipe 106. One side of the feeding pipe 106 is connected to the processing chamber 103. The top of the material cylinder 107 is detachably connected to the cylinder cover 117 by screws.
[0025] A connection hole is provided on one side of the feeding pipe 106. The main shaft of the first motor 108 passes through the connection hole. A spiral propulsion rod 109 is sleeved on one side of the first motor 108. Spiral blades are integrally formed on the spiral propulsion rod 109. When the user wants to add precipitant to the treatment chamber 103, the first motor 108 can be started. The main shaft of the first motor 108 drives the spiral propulsion rod 109 to rotate. The precipitant in the material cylinder 107 falls from the bottom of the material cylinder 107 into the feeding pipe 106. The spiral blades on the spiral propulsion rod 109 drive the precipitant in the feeding pipe 106 to move into the treatment chamber 103. There is no need to manually add precipitant, which improves the wastewater treatment efficiency. At the same time, the precipitant is evenly distributed in the treatment chamber 103 and reacts fully with the wastewater, reducing the occurrence of incomplete precipitation of heavy metal pollutants in the wastewater.
[0026] A connecting rod 118 is fixedly connected between the scraper 104 and the baffle 105. Limiting grooves 119 are opened at both ends of the processing chamber 103. The two sets of connecting rods 118 are respectively locked in the two sets of limiting grooves 119. A sealing ring is provided on one side of the baffle 105, and a handle 121 is provided on one side of the baffle 105. When the user cleans the sediment in the processing box 101, the baffle 105 can be unfixed and pulled out by the handle 121. At this time, the baffle 105 pulls the scraper 104 out along the direction of the limiting groove 119 through the connecting rod 118. The bottom of the scraper 104 fits against the processing chamber 103. The scraper 104 scrapes away the sediment accumulated at the bottom of the processing chamber 103, which improves the convenience and efficiency of cleaning sediment.
[0027] The cover 102 is snapped onto the top of the treatment tank 101. A second motor 112 is detachably connected to the top of the cover 102. A transmission rod 113 is connected to the main shaft of the second motor 112. Multiple sets of stirring blades 114 are sleeved on the transmission rod 113. The second motor 112 drives the multiple sets of stirring blades 114 through the transmission rod 113 to stir the wastewater in the treatment chamber 103, so that the wastewater and the precipitant react fully and improve the precipitation effect of heavy metal pollutants in the wastewater.
[0028] A mounting platform is provided on the top of the base plate 100. A water pump 111 is fixedly connected to the top of the mounting platform. A water pumping pipe 110 is fixedly connected to one end of the treatment tank 101. One end of the water pumping pipe 110 is connected to the water pump 111 through a first flange. The water pump 111 is responsible for pumping out the wastewater that has been completely settled in the treatment chamber 103 for further treatment. A filter screen can be installed at the port of the water pumping pipe 110 to prevent the sediment in the treatment chamber 103 from being pumped out and affecting the wastewater treatment effect.
[0029] The treatment box 101 has a water inlet at one end, and a water inlet pipe 120 is fixedly connected to one end of the water inlet. A second flange is detachably connected to one end of the water inlet pipe 120.
[0030] The bottom of the processing box 101 is fixedly connected with multiple sets of support legs.
[0031] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A comprehensive wastewater treatment device for PCB processing, comprising a base plate (100), a treatment tank (101), and a tank cover (102), characterized in that: The processing box (101) is provided on the top of the base plate (100), the processing chamber (103) is provided inside the processing box (101), the box cover (102) is provided on the top of the processing box (101), the scraper (104) is provided inside the processing box (101), the baffle (105) is provided on one side of the processing box (101), the feeding pipe (106) and the material cylinder (107) are provided on one side of the processing box (101), the first motor (108) is provided on one side of the feeding pipe (106), and the spiral propulsion rod (109) is provided inside the feeding pipe (106); The processing tank (101) is provided with a water pump (110) and a water pump (111) at one end. The top of the tank cover (102) is provided with a second motor (112). The bottom of the second motor (112) is provided with a transmission rod (113). The transmission rod (113) is provided with multiple sets of stirring blades (114).
2. The PCB processing wastewater comprehensive treatment equipment as described in claim 1, characterized in that: A bracket (115) is fixedly connected to the top of the base plate (100), and an mounting plate (116) is fixedly connected to the bracket (115). The first motor (108) is fixedly connected to the top of the mounting plate (116). The material cylinder (107) is clamped on the top of the bracket (115). The bottom of the material cylinder (107) is detachably connected to the feeding pipe (106). One side of the feeding pipe (106) is connected to the processing chamber (103). The top of the material cylinder (107) is detachably connected to the cylinder cover (117) by screws.
3. The PCB processing wastewater comprehensive treatment equipment as described in claim 2, characterized in that: A connection hole is provided on one side of the feeding pipe (106), through which the main shaft of the first motor (108) passes. A spiral push rod (109) is sleeved on one side of the first motor (108), and a spiral blade is integrally formed on the spiral push rod (109).
4. The PCB processing wastewater comprehensive treatment equipment as described in claim 1, characterized in that: A connecting rod (118) is fixedly connected between the scraper (104) and the baffle (105). Limiting grooves (119) are opened at both ends of the processing chamber (103). The two sets of connecting rods (118) are respectively locked in the two sets of limiting grooves (119). A sealing ring is provided on one side of the baffle (105), and a handle (121) is provided on one side of the baffle (105).
5. The PCB processing wastewater comprehensive treatment equipment as described in claim 1, characterized in that: The cover (102) is snapped onto the top of the processing box (101). A second motor (112) is detachably connected to the top of the cover (102). The transmission rod (113) is connected to the main shaft of the second motor (112). Multiple sets of stirring blades (114) are sleeved on the transmission rod (113).
6. The PCB processing wastewater comprehensive treatment equipment as described in claim 1, characterized in that: The base plate (100) is provided with an installation platform on top, and the water pump (111) is fixedly connected to the top of the installation platform. The water pump (110) is fixedly connected to one end of the treatment box (101), and one end of the water pump (110) is connected to the water pump (111) through a first flange.
7. The PCB processing wastewater comprehensive treatment equipment as described in claim 1, characterized in that: The processing tank (101) has a water inlet at one end, and a water inlet pipe (120) is fixedly connected to one end of the water inlet. A second flange is detachably connected to one end of the water inlet pipe (120).
8. The PCB processing wastewater comprehensive treatment equipment as described in claim 1, characterized in that: The bottom of the processing box (101) is fixedly connected to multiple sets of support legs.