Wastewater treatment device for circuit board production

Abstract

The utility model discloses a wastewater treatment device for circuit board production, and belongs to the technical field of circuit board production. Comprising a treatment box, a water inlet pipe is arranged at the upper end of the treatment box, a water outlet pipe is arranged at the lower end of the right side wall of the treatment box, a feeding opening is formed in the position, over the water outlet pipe, of the right side wall of the treatment box, a stirring and screening mechanism is arranged in the treatment box, and the stirring and screening mechanism comprises a motor; through the arranged stirring and screening mechanism, when wastewater enters the treatment box, a screen plate can vibrate up and down, the situation that due to standing of the screen plate, metal waste residues block filter holes, and the filter efficiency is affected is avoided, and meanwhile vibration of the screen plate can drive a dredging rod and a scraper to move up and down in a reciprocating mode; the dredging rod and the scraping plate are used for dredging and scraping the sewer pipe wall of the water inlet pipe, so that waste residues in wastewater are prevented from being attached to or blocking the water inlet pipe, the wastewater can enter the treatment box more smoothly, and the pretreatment effect of the wastewater is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit board production, and specifically relates to a wastewater treatment device for circuit board production. Background Art

[0002] The names of circuit boards include: ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, circuit boards, PCB boards, aluminum substrates, high-frequency boards, thick copper boards, impedance boards, PCBs, ultra-thin circuit boards, ultra-thin circuit boards, printed (copper etching technology) circuit boards, etc. Circuit boards make circuits miniaturized and intuitive, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layouts. Circuit boards can be called printed circuit boards or printed circuit boards. The English names are PCB, FPC circuit boards and hard-flex boards. The birth and development of FPC and PCB have given birth to a new product, the hard-flex board. Therefore, the hard-flex board is a flexible circuit board and a rigid circuit board. After lamination and other processes, they are combined according to relevant process requirements to form a circuit board with FPC characteristics and PCB characteristics. In the circuit board process, wastewater will be generated in each link. In the prior art, all production wastewater of circuit board manufacturers is usually collected in a wastewater pool for centralized treatment.

[0003] The existing circuit board wastewater needs to go through multiple processes for treatment in order to meet the standard discharge of wastewater. During the pretreatment of circuit board wastewater, because the wastewater contains a lot of solid particles such as metal residues, when the wastewater enters the treatment box through the water inlet pipe, the metal residues are easy to block the water inlet pipe mouth, and more metal residues are easy to cause the filter to be blocked, affecting the pretreatment efficiency. For this reason, we propose a wastewater treatment device for circuit board production. Utility Model Content

[0004] The purpose of the utility model is to provide a wastewater treatment device for circuit board production to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wastewater treatment device for circuit board production, comprising a treatment box, a water inlet pipe is arranged at the upper end of the treatment box, a water outlet pipe is arranged at the lower end of the right side wall of the treatment box, a feeding port is arranged on the right side wall of the treatment box directly above the outlet pipe, a stirring and screening mechanism is arranged inside the treatment box, the stirring and screening mechanism comprises a motor, a rotating shaft is transmission-connected to the power output end of the motor, a rotating rod is arranged at the upper end of the rotating shaft, a protrusion is arranged on the upper surface of the rotating rod, a push block is abutted on the upper end of the protrusion, a sieve plate is arranged on the upper end of the push block, a dredging rod is arranged in the middle of the upper surface of the sieve plate, and the circumferential surface of the upper end of the dredging rod is connected to an annular scraper through a connecting rod, and the outer ring of the annular scraper is in contact with the inner wall of the water inlet pipe.

[0006] Preferably, the circumferential surface of the rotating shaft is provided with stirring rods, and the stirring rods are provided in several groups, the lowermost stirring rod is provided with a brush at the end away from the rotating shaft, a secondary filter is provided inside the left end of the water outlet pipe, and the right end of the brush at the right end abuts against the left side wall of the secondary filter.

[0007] Preferably, a reset mechanism is provided at the lower end of the sieve plate, and the reset mechanism includes a fixed block, and four fixed blocks are provided and respectively arranged at the four corners of the sieve plate, and reset springs are provided inside the four fixed blocks, and a connecting block is provided at the upper end of the reset spring, and the lower end of the connecting block is movably installed inside the fixed block, and the upper end of the connecting block is fixedly connected to the lower surface of the sieve plate.

[0008] Preferably, side sealing doors are provided at both ends of the sieve plate, the two side sealing doors are hinged on the left and right sides of the processing box respectively, the side sealing doors are located above the feeding port, and a lower sealing door is provided on the right side of the lower surface of the processing box.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The wastewater treatment device for circuit board production can make the sieve plate vibrate up and down by means of the stirring and screening mechanism when the wastewater enters the treatment box, thereby preventing the sieve plate from being left stationary and causing metal waste residues to clog the filter holes and affect the filtering efficiency. At the same time, the vibration of the sieve plate can drive the dredging rod and the scraper to move up and down together, so that the dredging rod and the scraper can dredge and scrape the downpipe wall of the water inlet pipe, thereby preventing waste residues in the wastewater from adhering to or clogging the water inlet pipe, allowing the wastewater to enter the treatment box more smoothly, thereby improving the pretreatment effect of the wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0012] Figure 2 It is a front cutaway stereogram of the utility model;

[0013] Figure 3 For the utility model Figure 2 A magnified view of the structure at center A;

[0014] Figure 4 It is a left-side cutaway perspective view of the present invention.

[0015] In the figure: 1. processing box; 2. stirring and screening mechanism; 201. motor; 202. rotating shaft; 203. stirring rod; 204. brush; 205. rotating rod; 206. bump; 207. push block; 208. sieve plate; 209. dredging rod; 3. annular scraper; 4. water inlet pipe; 5. water outlet pipe; 6. secondary filter; 7. reset mechanism; 701. fixing block; 702. reset spring; 703. connecting block; 8. feeding port; 9. side sealing door; 10. lower sealing door. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1 - Figure 4 The utility model provides a wastewater treatment device for circuit board production, including a treatment box 1, an inlet pipe 4 is arranged at the upper end of the treatment box 1, an outlet pipe 5 is arranged at the lower end of the right side wall of the treatment box 1, and a valve is arranged inside the outlet pipe 5, and a secondary filter screen 6 is arranged inside the left end of the outlet pipe 5. The secondary filter screen 6 can block impurities in the wastewater treated with chemicals, so that the wastewater discharged through the outlet pipe 5 can be filtered again by impurities, so that the wastewater is convenient for the next step of treatment. A feeding port 8 is arranged on the right side wall of the treatment box 1 just above the outlet pipe 5. The feeding port 8 is convenient for the injection of chemicals into the interior of the treatment box 1 through the feeding port 8, so as to facilitate the treatment of wastewater. The treatment box 1 A stirring and screening mechanism 2 is arranged inside the processing box 1, and the stirring and screening mechanism 2 includes a motor 201, and the motor 201 is arranged on the bottom outer wall of the processing box 1 through the motor box. The power output end of the motor 201 is connected to the rotating shaft 202 through a coupling transmission. The circumferential surface of the rotating shaft 202 is provided with a stirring rod 203, and the stirring rod 203 is provided with a plurality of groups. The end of the lowermost stirring rod 203 away from the rotating shaft 202 is provided with a brush 204, and the right end of the right end brush 204 abuts against the left side wall of the secondary filter screen 6. The setting of the brush 204 can clean the secondary filter screen 6 when the stirring rod 203 drives the brush 204 to rotate, so as to avoid impurities clogging the secondary filter screen 6 and improve the drainage efficiency of the water outlet pipe 5;

[0018] The upper end of the rotating shaft 202 is provided with a rotating rod 205, and the upper surface of the rotating rod 205 is provided with a protrusion 206, and the upper end of the protrusion 206 abuts against a push block 207, and the upper end of the push block 207 is provided with a sieve plate 208, and the lower end of the sieve plate 208 is provided with a reset mechanism 7, and the reset mechanism 7 includes a fixed block 701, and the fixed blocks 701 are provided with four and are respectively arranged at the four corners of the sieve plate 208, and the interiors of the four fixed blocks 701 are all provided with reset springs 702, and the upper end of the reset spring 702 is provided with a connecting block 703, and the lower end of the connecting block 703 is movably mounted on the fixed block 701. Internally, the upper end of the connecting block 703 is fixedly connected to the lower surface of the sieve plate 208. When the rotating rod 205 drives the protrusion 206 to contact the push block 207, the protrusion 206 can push the push block 207 to move upward, so that the push block 207 drives the sieve plate 208 to move upward. When the protrusion 206 is not in contact with the push block 207, the sieve plate 208 moves downward under the action of the reset mechanism 7, so that the rotating rod 205 drives the protrusion 206 to continue to rotate, so that the sieve plate 208 can perform vertical reciprocating motion, and then the upper surface of the sieve plate 208 is vibrated to improve the screening efficiency of wastewater;

[0019] A dredging rod 209 is provided in the middle of the upper surface of the sieve plate 208, and the circumferential surface of the upper end of the dredging rod 209 is connected to the annular scraper 3 through a connecting rod, and the outer ring of the annular scraper 3 contacts the inner wall of the water inlet pipe 4. The sieve plate 208 can drive the dredging rod 209 and the annular scraper 3 to move vertically and reciprocatingly during the reciprocating vertical movement, so that the dredging rod 209 can dredge the water inlet pipe 4, and the annular scraper 3 scrapes the inner wall of the water inlet pipe 4 to prevent impurities in the wastewater from clogging or adhering to the inner wall of the water inlet pipe 4, thereby increasing the speed at which the wastewater enters the treatment box 1.

[0020] Side sealing doors 9 are provided at both left and right ends of the sieve plate 208. The two side sealing doors 9 are respectively hinged on the left and right sides of the treatment box 1. The side sealing doors 9 are located above the feeding port 8. The setting of the side sealing doors 9 can open the side sealing doors 9 after the wastewater treatment is completed, and the impurities on the upper surface of the sieve plate 208 can be discharged through the side sealing doors 9. A lower sealing door 10 is provided on the right side of the lower surface of the treatment box 1. When the lower sealing door 10 is opened, the solid impurities generated after the wastewater and the reagent are mixed can be discharged through the lower sealing door 10.

[0021] The working principle and use process of the utility model are as follows: when pre-treating wastewater, firstly, wastewater is injected into the treatment box 1 through the water inlet pipe 4, and the motor 201 is started at the same time, the motor 201 drives the rotating shaft 202, the stirring rod 203, the rotating rod 205 and the protrusion 206 to rotate, and the rotating rod 205 drives the protrusion 206 to rotate continuously and cooperates with the reset mechanism 7 to make the screen plate 208 and the dredging rod 209 perform vertical reciprocating motion, and the dredging rod 209 drives the annular scraper 3 to perform vertical reciprocating motion to dredge and scrape the inner wall of the water inlet pipe 4. The sieve plate 208 vibrates to make the impurities on its surface vibrate, so as to prevent the impurities from clogging the sieve holes and improve the wastewater filtering efficiency. Then, the reagent is added into the inside of the treatment box 1 through the feeding port 8, and the stirring rod 203 stirs the wastewater and the reagent to make the wastewater undergo preliminary chemical treatment. Then, the valve inside the outlet pipe 5 is opened to discharge the wastewater through the outlet pipe 5 for the next treatment. The impurities generated by the mixture of the wastewater and the reagent will be blocked by the secondary filter screen 6 to prevent the impurities from being discharged from the outlet pipe 5 with the wastewater, so as to facilitate the subsequent treatment of the wastewater.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device for circuit board production, comprising a treatment box (1), wherein an inlet pipe (4) is provided at the upper end of the treatment box (1), an outlet pipe (5) is provided at the lower end of the right side wall of the treatment box (1), and a feed port (8) is provided on the right side wall of the treatment box (1) directly above the outlet pipe (5), characterized in that: The processing box (1) is provided with a stirring and screening mechanism (2) inside, and the stirring and screening mechanism (2) comprises a motor (201), the power output end of the motor (201) is drivingly connected to a rotating shaft (202), the upper end of the rotating shaft (202) is provided with a rotating rod (205), the upper surface of the rotating rod (205) is provided with a protrusion (206), the upper end of the protrusion (206) is abutted against a push block (207), the upper end of the push block (207) is provided with a sieve plate (208), a dredging rod (209) is provided in the middle of the upper surface of the sieve plate (208), and the circumferential surface of the upper end of the dredging rod (209) is connected to an annular scraper (3) through a connecting rod, and the outer ring of the annular scraper (3) is in contact with the inner wall of the water inlet pipe (4).

2. A circuit board production wastewater treatment device according to claim 1, characterized in that: The circumferential surface of the rotating shaft (202) is provided with a stirring rod (203), and the stirring rod (203) is provided in a plurality of groups. A brush (204) is provided at the lower end of the stirring rod (203) away from the rotating shaft (202). A secondary filter screen (6) is provided inside the left end of the water outlet pipe (5), and the right end of the brush (204) at the right end abuts against the left side wall of the secondary filter screen (6).

3. A circuit board production wastewater treatment device according to claim 1, characterized in that: A reset mechanism (7) is provided at the lower end of the sieve plate (208), and the reset mechanism (7) includes a fixed block (701). Four fixed blocks (701) are provided and are respectively arranged at the four corners of the sieve plate (208). A reset spring (702) is provided inside each of the four fixed blocks (701). A connecting block (703) is provided at the upper end of the reset spring (702), and the lower end of the connecting block (703) is movably installed inside the fixed block (701). The upper end of the connecting block (703) is fixedly connected to the lower surface of the sieve plate (208).

4. A circuit board production wastewater treatment device according to claim 1, characterized in that: Side sealing doors (9) are provided at both left and right ends of the sieve plate (208), and the two side sealing doors (9) are hinged on the left and right sides of the processing box (1), respectively. The side sealing doors (9) are located above the feeding port (8), and a lower sealing door (10) is provided on the right side of the lower surface of the processing box (1).

Images