A filtering function system for a waste acid water treatment and neutralization device

Abstract

A filtering function system of a waste acid water treatment and neutralization device relates to the technical field of sewage filtering equipment; four corners of the lower surface of a box body are fixed with supporting feet, one side of the upper side wall of the box body is inserted with a feed pipe, the lower side of one side wall of the box body is inserted with a discharge pipe, and the middle end of the discharge pipe is provided with a one-way valve; a No. 1 filtering mechanism is provided on the upper side of the interior of the box body, a collecting box in the No. 1 filtering mechanism is fixed on the outer side wall of one side of the box body, a No. 2 filtering mechanism is provided on the middle side of the interior of the box body, a support plate in the No. 2 filtering mechanism is fixedly connected to the inner peripheral wall of the box body, and a No. 3 filtering mechanism is provided on the lower side of the support plate; the waste acid water is filtered through several filtering mechanisms, and solid impurities in the waste liquid are gradually filtered, thereby increasing the filtering speed and improving the working efficiency of the filtering. The present invention has the advantages of reasonable arrangement and low production cost.

Description

Technical Field

[0001] The invention relates to the technical field of sewage filtering equipment, and in particular to a filtering function system of a waste acid water treatment and neutralization device. Background Art

[0002] At present, with the advancement of science and technology and the rapid development of industry, various acid chemical raw materials are applied in the production process of more industrial fields. After the production process, the waste acid is discharged into the environment with sewage. Therefore, in order to avoid the discharged waste acid water from polluting the environment, the acid raw materials are fully utilized in the production process without waste, and the discharged waste acid water is treated with high-quality fertilizer liquid to meet the standards. Therefore, the quality of the recovered materials after the waste liquid is treated directly depends on the waste acid water treatment equipment. The filtering device in the treatment and neutralization device is a process equipment in the waste acid water treatment equipment. When filtering the waste liquid, the degree of filtration of fixed substances plays a vital role in the entire waste acid water treatment filtration. When the filtration is insufficient, it may cause the overall quality of the waste acid water after treatment to be substandard and cause pollution to the environment. When the existing waste acid water treatment filtering device contains more solid impurities in the waste liquid, its filtration speed is slow, which reduces the filtration efficiency and needs to be improved urgently. Summary of the invention

[0003] The purpose of the present invention is to provide a filtering function system of a waste acid water treatment and neutralization device with a reasonable design and easy use in view of the defects and shortcomings of the prior art. The waste acid water is filtered through several filtering mechanisms, and the solid impurities in the waste liquid are gradually filtered, thereby increasing the filtering speed and improving the filtering work efficiency.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: it comprises a box body, supporting feet, a feed pipe, a discharge pipe and a one-way valve; a door body is arranged at the center of the front side wall of the box body; one side of the door body is screwed to one side of the front side wall of the box body through a hinge; the other side of the door body is connected to the other side of the front side wall of the box body through a cross lock; supporting feet are fixed to the four corners of the lower surface of the box body; a feed pipe is inserted into one side of the upper side wall of the box body; a discharge pipe is inserted into the lower side of one side wall of the box body; a one-way valve is arranged at the middle end of the discharge pipe; it also comprises a No. 1 filter mechanism, a No. 2 filter mechanism and a No. 3 filter mechanism; a No. 1 filter mechanism is arranged on the upper side of the inner part of the box body; a collection box in the No. 1 filter mechanism is fixed on the outer side wall of one side of the box body; a No. 2 filter mechanism is arranged on the middle side of the inner part of the box body; a support plate in the No. 2 filter mechanism is fixedly connected to the inner peripheral wall of the box body; a No. 3 filter mechanism is arranged on the lower side of the support plate;

[0005] The above-mentioned No. 1 filter mechanism also includes a No. 1 filter screen and a slag discharge pipe. The No. 1 filter screen is arranged on the upper side of the inner part of the box body. One side of the No. 1 filter screen is fixedly connected to the inner side wall of one side of the box body. The other side of the No. 1 filter screen is tilted downward and fixed to the inner side wall of the other side of the box body. A slag discharge pipe is inserted on the upper side of one side wall of the box body. The inner end of the slag discharge pipe is arranged above one side of the No. 1 filter screen. The outer end of the slag discharge pipe is tilted downward and inserted into the collection box.

[0006] The above-mentioned No. 2 filter mechanism also includes a guide ring, a fixing ring, a filter frame and a fixing plate. The guide ring is arranged at the lower side of the No. 1 filter screen. The outer edge of the guide ring is fixedly connected to the inner peripheral wall of the box body. The inner diameter of the guide ring is gradually reduced from top to bottom. A fixing ring is arranged at the lower side of the guide ring. The lower side wall of the fixing ring is fixedly connected to the upper end of the support rod in the filter frame. The inner diameters of the fixing ring and the filter frame are both set to be the same as the inner diameter of the lower side of the guide ring. The lower end of the support rod in the filter frame is fixedly connected to the fixing plate. The fixing plate is arranged at the upper side of the support plate. A plurality of water-permeable holes are arranged at equal angles on the outer edge of the support plate.

[0007] The above-mentioned No. 3 filter mechanism is composed of a fixed frame, a filter cloth, a slide rail and a pull plate. The fixed frame is arranged on the lower side of the support plate, and the filter cloth is embedded in the lower side of the fixed frame. The filter cloth is suspended on the lower side of the support plate. Slide rails are slidably arranged on the left and right sides of the fixed frame. The slide rails on both sides are respectively fixed on the inner walls on the left and right sides of the box body. After the front side of the fixed frame passes through the front side wall of the box body, it is fixedly connected to the rear side wall of the pull plate, and the rear side of the pull plate is contacted with the outer side wall of the front side of the box body.

[0008] Furthermore, a guide plate No. 1 is provided on one side of the discharge pipe, and the guide plate No. 1 is arranged inside the box body, and the right side of the guide plate No. 1 is arranged to be tilted downward.

[0009] Furthermore, a No. 1 sealing ring is fixed on the rear side wall of the pull plate, and the No. 1 sealing ring is sleeved on the outside of the fixed frame, and the rear side wall of the No. 1 sealing ring is in contact with the outer side wall of the front side of the box body.

[0010] Furthermore, a motor is fixed on the center of the upper side wall of the box body, and the motor is connected to an external power supply. A stirring rod is fixed on the output shaft of the motor. After the lower end of the stirring rod passes through the upper side wall of the box body, it is fixedly connected to the upper surface of the fixed plate. Several arc-shaped sliding blocks are equidistantly fixed on the lower surface of the fixed plate. The arc-shaped sliding blocks are slidably set in the sliding groove on the upper side of the support plate. A No. 2 sealing ring is fixed on the upper side of the support plate. The upper side of the No. 2 sealing ring is in contact with the lower surface of the fixed plate, and the outer ring wall of the No. 2 sealing ring is in the same vertical plane as the outer side wall of the fixed plate. Several fixing rods are suspended on the upper side of the fixed plate, and the fixing rods are in an inverted "L" shape. The upper ends of the fixing rods are equiangularly fixed on the inner ring wall of the guide ring, and the lower side wall of the guide ring is in contact with the upper surface of the fixing ring through a graphite pad. Several protrusions are equiangularly fixed on the outer wall of the lower end of the fixing rod, and the protrusions are in contact with the filter frame.

[0011] Furthermore, a guide block is provided on the upper side of the slide rail, the cross section of the guide block is triangular, and the front and rear ends of the guide block are respectively fixedly connected to the inner side walls of the front and rear sides of the box body.

[0012] Furthermore, a No. 2 filter is provided on the lower side of the interior of the collection box, and the outer edge of the No. 2 filter is fixedly connected to the inner circumferential wall of the collection box, and a No. 2 guide plate is provided on the lower side of the No. 2 filter, and the No. 2 guide plate is arranged away from one side of the box body and lower than the other side thereof, and a guide pipe is provided on the side of the No. 2 guide plate adjacent to the box body, and the other end of the guide pipe passes through one side wall of the collection box and the side wall of the box body in sequence, and is suspended inside the box body.

[0013] After adopting the above structure, the beneficial effects of the present invention are:

[0014] 1. The waste acid water is filtered through several filtering mechanisms, and the solid impurities in the waste liquid are filtered step by step, which increases the filtering speed and improves the filtering efficiency;

[0015] 2. After the waste acid water is filtered through the No. 1 filter, the impurities can be discharged into the collection box through the slag discharge pipe and collected in the collection box, thereby preventing the impurities from clogging the No. 1 filter;

[0016] 3. After being filtered through the No. 1 filter, the waste acid water flows into the filter frame through the guide ring, and then is discharged onto the support plate, and then is discharged through the water-permeable holes on the support plate, drips onto the filter cloth, and finally is filtered through the filter cloth, thereby increasing the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 for Figure 1 Top view of the .

[0019] Figure 3 for Figure 2 Middle AA section view.

[0020] Figure 4 for Figure 3 Enlarged view of part B in the middle.

[0021] Figure 5 for Figure 3 Enlarged view of part C in the middle.

[0022] Figure 6 It is a schematic diagram of the structure of the guide ring in the present invention.

[0023] Figure 7 It is a structural schematic diagram of the support plate in the present invention.

[0024] Figure 8 It is a structural schematic diagram of the fixed frame and the pull plate in the present invention.

[0025] Description of reference numerals:

[0026] Box body 1, support leg 2, feed pipe 3, discharge pipe 4, one-way valve 5, No. 1 filter mechanism 6, collection box 6-1, No. 1 filter screen 6-2, slag discharge pipe 6-3, No. 2 filter mechanism 7, support plate 7-1, guide ring 7-2, fixed ring 7-3, filter frame 7-4, fixed plate 7-5, water permeable hole 7-6, No. 3 filter mechanism 8, fixed frame 8-1, filter cloth 8-2, slide rail 8-3, pull plate 8-4, No. 1 guide plate 9, No. 1 sealing ring 10, motor 11, stirring rod 12, arc-shaped slider 13, No. 2 sealing ring 14, fixed rod 15, protrusion 16, guide block 17, No. 2 filter screen 18, No. 2 guide plate 19, guide pipe 20. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1-Figure 8As shown, this specific embodiment adopts the following technical scheme: it comprises a box body 1, a support leg 2, a feed pipe 3, a discharge pipe 4 and a one-way valve 5. A door body 1-1 is provided in the center of the front side wall of the box body 1. One side of the door body 1-1 is screwed to one side of the front side wall of the box body 1 through a hinge, and the other side of the door body 1-1 is connected to the other side of the front side wall of the box body 1 through a cross lock. The four corners of the lower surface of the box body 1 are welded and fixed with support legs 2, a feed pipe 3 is inserted and welded to the left side of the upper side wall of the box body 1, a discharge pipe 4 is inserted and welded to the lower side of the right side wall of the box body 1, a one-way valve 5 is provided at the middle end of the discharge pipe 4, and a No. 1 guide plate 9 is provided on the left side of the discharge pipe 4. The No. 1 guide plate 9 is arranged inside the box body 1, the right side of the No. 1 guide plate 9 is welded and fixed to the inner side wall of the lower side of the box body 1, and the left side of the No. 1 guide plate 9 is tilted upward and then welded and fixed to the inner side wall of the left side of the box body 1, and the front and rear sides of the No. 1 guide plate 9 are respectively connected to the box body 1 The inner walls on the front and rear sides are welded and fixed to prevent the waste acid water from being retained on the left side of the interior of the box body 1; it also includes a No. 1 filter mechanism 6, a No. 2 filter mechanism 7 and a No. 3 filter mechanism 8. A No. 1 filter mechanism 6 is provided on the upper side of the interior of the box body 1. The collection box 6-1 in the No. 1 filter mechanism 6 is fixed to the outer wall of one side of the box body 1 by bolts. The No. 1 filter mechanism 6 also includes a No. 1 filter screen 6-2 and a slag discharge pipe 6-3. The No. 1 filter screen 6-2 is arranged on the upper side of the interior of the box body 1. The left side of the No. 1 filter screen 6-2 is welded and fixed to the inner wall of the left side of the box body 1. The right side of the No. 1 filter screen 6-2 is tilted downward and welded and fixed to the box body 1. On the inner wall on the right side, a slag discharge pipe 6-3 is inserted on the upper side of the right side wall of the box body 1, and the inner end of the slag discharge pipe 6-3 is arranged above one side of the No. 1 filter screen 6-2. After the outer end of the slag discharge pipe 6-3 is tilted downward, it is inserted and welded and fixed in the collection box 6-1. A No. 2 filter screen 18 is arranged on the lower side of the interior of the collection box 6-1. The outer edge of the No. 2 filter screen 18 is welded and fixed to the inner peripheral wall of the collection box 6-1. A No. 2 guide plate 19 is arranged on the lower side of the No. 2 filter screen 18. The right side of the No. 2 guide plate 19 is connected to the collection box 6-1. The inner wall on the right side of the No. 6-1 is welded and fixed, and the left side of the No. 2 guide plate 19 is tilted downward and welded and fixed to the inner wall on the left side of the collecting box 6-1. A guide pipe 20 is provided on the left side of the No. 2 guide plate 19. The left end of the guide pipe 20 passes through the left side wall of the collecting box 6-1 and the right side wall of the box body 1 in sequence, and is suspended inside the box body 1. The waste acid water contained in the impurities inside the collecting box 6-1 can be filtered, and then flows into the guide pipe 20 through the No. 2 guide plate 19, and finally flows into the box body 1, which is convenient for later processing;

[0029] A No. 2 filter mechanism 7 is provided on the middle side of the interior of the box body 1. The support plate 7-1 in the No. 2 filter mechanism 7 is welded and fixed to the inner peripheral wall of the box body 1. The No. 2 filter mechanism 7 also includes a guide ring 7-2, a fixing ring 7-3, a filter frame 7-4 and a fixing plate 7-5. The guide ring 7-2 is arranged on the lower side of the No. 1 filter screen 6-2. The outer edge of the guide ring 7-2 is welded and fixed to the inner peripheral wall of the box body 1. The inner diameter of the guide ring 7-2 is gradually reduced from top to bottom. A fixing ring 7-3 is provided on the lower side of the guide ring 7-2. The lower side wall of the fixing ring 7-3 is welded and fixed to the upper end of the support rod in the filter frame 7-4. The inner diameters of the fixing ring 7-3 and the filter frame 7-4 are all set to the same inner diameter as the lower side of the guide ring 7-2. The lower end of the support rod in the filter frame 7-4 is fixed to the fixing plate 7-5. The fixing plate 7-5 is fixed by welding, and is arranged on the upper side of the supporting plate 7-1. A plurality of water-permeable holes 7-6 are provided at equal angles on the outer edge of the supporting plate 7-1;

[0030] A third filter mechanism 8 is provided on the lower side of the support plate 7-1. The third filter mechanism 8 is composed of a fixed frame 8-1, a filter cloth 8-2, a slide rail 8-3 and a pull plate 8-4. The fixed frame 8-1 is provided on the lower side of the support plate 7-1. A filter cloth 8-2 ​​is embedded on the lower side of the fixed frame 8-1. The outer periphery of the filter cloth 8-2 ​​is welded and fixed to the inner peripheral wall of the fixed frame 8-1. The filter cloth 8-2 ​​is suspended on the lower side of the support plate 7-1. Slide rails 8-3 are slidably provided on the left and right sides of the fixed frame 8-1. The slide rails 8-3 on both sides are respectively welded and fixed to the inner side walls on the left and right sides of the box body 1. The upper side of the slide rails 8-3 is welded and fixed with guide blocks 1 7. The cross section of the guide block 17 is triangular, and the front and rear ends of the guide block 17 are respectively welded and fixed to the inner side walls of the front and rear sides of the box body 1, which can prevent the waste acid water from being retained on the slide rail 8-3. After the front side of the fixed frame 8-1 passes through the front side wall of the box body 1, it is welded and fixed to the rear side wall of the pull plate 8-4. The rear side of the pull plate 8-4 is in contact with the outer side wall of the front side of the box body 1. A No. 1 sealing ring 10 is glued and fixed on the rear side wall of the pull plate 8-4. The No. 1 sealing ring 10 is sleeved on the outside of the fixed frame 8-1. The rear side wall of the No. 1 sealing ring 10 is in contact with the outer side wall of the front side of the box body 1, which can increase the sealing between the pull plate 8-4 and the box body 1.

[0031] A motor 11 is fixed to the center of the upper side wall of the box body 1 by bolts. The motor 11 is connected to an external power supply. The model of the motor 11 is 50KTYZ. A stirring rod 12 is welded and fixed to the output shaft of the motor 11. After the lower end of the stirring rod 12 passes through the upper side wall of the box body 1, it is welded and fixed to the upper surface of the fixed plate 7-5. Several arc-shaped sliders 13 are welded and fixed at equal intervals on the lower surface of the fixed plate 7-5. The arc-shaped slider 13 is slidably set in the slide groove on the upper side of the support plate 7-1. A No. 2 sealing ring 14 is glued and fixed to the upper side of the support plate 7-1. The upper side of the No. 2 sealing ring 14 is contacted with the lower surface of the fixed plate 7-5, and the No. 2 sealing ring The outer ring wall of 14 is arranged in the same vertical plane as the outer side wall of the fixed plate 7-5. Several fixing rods 15 are suspended on the upper side of the fixed plate 7-5. The fixing rods 15 are arranged in an inverted "L" shape. The upper ends of the fixing rods 15 are respectively welded and fixed to the inner ring wall of the guide ring 7-2 at equal angles. The lower side wall of the guide ring 7-2 is contacted with the upper surface of the fixing ring 7-3 through a graphite pad. The graphite pad is glued and fixed to the lower side wall of the guide ring 7-2. The lower side wall of the graphite pad is contacted with the upper side wall of the fixing ring 7-3. Several protrusions 16 are welded and fixed at equal angles on the outer side wall of the lower end of the fixing rod 15. The protrusions 16 are contacted with the filter frame 7-4. The filter frame 7-4 is driven to shake through the protrusions 16, thereby preventing the filter frame 7-4 from being blocked.

[0032] The working principle of this specific embodiment is as follows: when in use, the waste acid water enters the box body 1 through the feed pipe 3, is first filtered through the No. 1 filter 6-2, and the impurities in the waste acid water slide through the No. 1 filter 6-2 to the slag discharge pipe 6-3, and then fall into the collection box 6-1 through the slag discharge pipe 6-3. After the waste acid water passes through the No. 1 filter 6-2, it drips into the filter frame 7-4, and then after being filtered by the filter frame 7-4, it flows to the filter frame 7-4. At this time, the motor 11 is started, the motor 11 drives the stirring rod 12 to rotate, the stirring rod 12 electrically rotates the fixed plate 7-5, the fixed plate 7-5 drives the filter frame 7-4 to rotate, the filter frame 7-4 rubs against the protrusion 16 when rotating, so that the protrusion 16 drives the filter frame 7-4 to shake, reducing the impurities trapped in the mesh of the filter frame 7-4, so that the impurities fall onto the fixed plate 7-5, after a period of time, the door body 1-1 can be opened, the lower side of the filter screen on the filter frame 7-4 is lifted upward, and then the impurities are processed, and the waste acid water passes through After filtering frame 7-4, it flows to filter cloth 8-2 ​​through water permeable hole 7-6. After being filtered by filter cloth 8-2, waste acid water drips onto guide plate No. 1 9. After a period of time, the one-way valve 5 is opened to allow waste acid water to flow into the neutralization device. Waste acid water contained in impurities inside collecting box 6-1 is filtered through filter screen No. 2 and drips onto guide plate No. 2 19. After flowing through guide plate No. 2 19, waste acid water flows into guide pipe 20, and finally flows into box body 1, is mixed with waste acid water inside box body 1, and is transmitted to the neutralization device.

[0033] After adopting the above structure, the beneficial effects of this specific implementation are as follows:

[0034] 1. The waste acid water is filtered through several filtering mechanisms, and the solid impurities in the waste liquid are filtered step by step, which increases the filtering speed and improves the filtering efficiency;

[0035] 2. After the waste acid water is filtered through the No. 1 filter 6-2, the impurities can be discharged into the collection box 6-1 through the slag discharge pipe 6-3 and collected by the collection box 6-1, thereby preventing the impurities from clogging the No. 1 filter 6-2;

[0036] 3. The waste acid water filtered by the No. 1 filter screen 6-2 flows into the filter frame 7-4 through the guide ring 7-2, and then is discharged onto the support plate 7-1, and then discharged through the water permeable holes 7-6 on the support plate 7-1, drips onto the filter cloth 8-2, and finally is filtered through the filter cloth 8-2, thereby increasing the filtering effect;

[0037] 4. The upper surface of the fixed plate 7-5 is fixedly connected to the stirring rod 12. When the motor 11 drives the stirring rod 12 to rotate, the fixed plate 7-5 can be driven to rotate, and the fixed plate 7-5 drives the filter frame 7-4 to rotate. When the filter frame 7-4 rotates, friction is generated between the protrusion 16, so that the protrusion 16 drives the filter frame 7-4 to shake, thereby preventing the filter frame 7-4 from being blocked;

[0038] 5. A No. 2 filter screen 18 is provided inside the collection box 6-1, through which the impurities entering the collection box 6-1 can be filtered. The filtered waste acid water enters the guide pipe 20 through the No. 2 guide plate 19, and finally enters the interior of the box body 1 for centralized treatment.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A filtering function system of a waste acid water treatment and neutralization device, comprising a box body (1), a support leg (2), a feed pipe (3), a discharge pipe (4) and a one-way valve (5); a door body (1-1) is provided at the center of the front side wall of the box body (1); one side of the door body (1-1) is screwed to one side of the front side wall of the box body (1) through a hinge; the other side of the door body (1-1) is connected to the other side of the front side wall of the box body (1) through a cross lock; the four corners of the lower surface of the box body (1) are fixed with support legs (2); one side of the upper side wall of the box body (1) is inserted with a feed pipe (3); the lower side of one side wall of the box body (1) is inserted with a discharge pipe (4); the middle end of the discharge pipe (4) is provided with a one-way valve (5); the characteristics are as follows: It also comprises a No. 1 filter mechanism (6), a No. 2 filter mechanism (7) and a No. 3 filter mechanism (8); the No. 1 filter mechanism (6) is arranged on the upper side of the interior of the box body (1); the collection box (6-1) in the No. 1 filter mechanism (6) is fixed on the outer wall of one side of the box body (1); the No. 2 filter mechanism (7) is arranged on the middle side of the interior of the box body (1); the support plate (7-1) in the No. 2 filter mechanism (7) is fixedly connected to the inner peripheral wall of the box body (1); and the No. 3 filter mechanism (8) is arranged on the lower side of the support plate (7-1); The above-mentioned No. 1 filter mechanism (6) further comprises a No. 1 filter screen (6-2) and a slag discharge pipe (6-3); the No. 1 filter screen (6-2) is arranged on the upper side of the interior of the box body (1); one side of the No. 1 filter screen (6-2) is fixedly connected to the inner side wall of one side of the box body (1); the other side of the No. 1 filter screen (6-2) is tilted downward and fixed to the inner side wall of the other side of the box body (1); a slag discharge pipe (6-3) is inserted into the upper side of one side wall of the box body (1); the inner end of the slag discharge pipe (6-3) is arranged above one side of the No. 1 filter screen (6-2); the outer end of the slag discharge pipe (6-3) is tilted downward and inserted into the collection box (6-1); a No. 2 filter screen (18) is arranged on the lower side of the interior of the collection box (6-1); the outer edge of the No. 2 filter screen (18) is connected to the collection box (6-1). The second filter screen (18) is fixedly connected to the inner peripheral wall of the collecting box (6-1), a second guide plate (19) is provided on the lower side of the second filter screen (18), the second guide plate (19) is arranged away from one side of the casing (1) and lower than the other side thereof, a guide pipe (20) is provided on the side of the second guide plate (19) adjacent to the casing (1), the other end of the guide pipe (20) passes through a side wall of the collecting box (6-1) and a side wall of the casing (1) in sequence, and is suspended inside the casing (1), the waste acid water contained in the impurities falling into the collecting box (6-1) is filtered by the second filter screen (18), drips onto the second guide plate (19), then flows through the second guide plate (19) into the guide pipe (20), and finally flows into the casing (1) through the guide pipe (20), and is mixed with the waste acid water inside the casing (1); The second filter mechanism (7) further comprises a guide ring (7-2), a fixing ring (7-3), a filter frame (7-4) and a fixing plate (7-5); the guide ring (7-2) is arranged on the lower side of the first filter screen (6-2); the outer edge of the guide ring (7-2) is fixedly connected to the inner peripheral wall of the box body (1); the inner diameter of the guide ring (7-2) is gradually reduced from top to bottom; a fixing ring (7-3) is arranged on the lower side of the guide ring (7-2); the ... The lower side wall of the ring (7-3) is fixedly connected to the upper end of the support rod in the filter frame (7-4); the inner diameters of the fixed ring (7-3) and the filter frame (7-4) are both set to be the same as the inner diameter of the lower side of the guide ring (7-2); the lower end of the support rod in the filter frame (7-4) is fixedly connected to the fixed plate (7-5); the fixed plate (7-5) is arranged on the upper side of the support plate (7-1); and a plurality of water permeable holes (7-6) are arranged at equal angles on the outer edge of the support plate (7-1); A motor (11) is fixed at the center of the upper side wall of the box body (1), and the motor (11) is connected to an external power supply. A stirring rod (12) is fixed to the output shaft of the motor (11). After the lower end of the stirring rod (12) passes through the upper side wall of the box body (1), it is fixedly connected to the upper surface of the fixed plate (7-5). A plurality of arc-shaped sliders (13) are fixed at equal intervals on the lower surface of the fixed plate (7-5). The arc-shaped sliders (13) are slidably arranged in a slide groove on the upper side of the support plate (7-1). A second sealing ring (14) is fixed on the upper side of the support plate (7-1). The upper side of the second sealing ring (14) is arranged in contact with the lower surface of the fixed plate (7-5), and the outer ring wall of the second sealing ring (14) is arranged in the same vertical plane as the outer side wall of the fixed plate (7-5). A plurality of fixing rods (15) are suspended on the upper side of the plate (7-5), and the fixing rods (15) are arranged in an inverted "L" shape. The upper ends of the fixing rods (15) are respectively fixed at equal angles on the inner ring wall of the guide ring (7-2). The lower side wall of the guide ring (7-2) is arranged in contact with the upper surface of the fixing ring (7-3) through a graphite pad. A plurality of protrusions (16) are fixed at equal angles on the outer side wall of the lower end of the fixing rod (15). The protrusions (16) are arranged in contact with the filter frame (7-4). When the motor (11) drives the stirring rod (12) to rotate, the fixing plate (7-5) can be driven to rotate, and the fixing plate (7-5) drives the filter frame (7-4) to rotate. When the filter frame (7-4) rotates, friction is generated between the protrusions (16), so that the protrusions (16) drive the filter frame (7-4) to shake. The third filtering mechanism (8) is composed of a fixed frame (8-1), a filter cloth (8-2), a slide rail (8-3) and a pull plate (8-4). The fixed frame (8-1) is arranged on the lower side of the support plate (7-1). The filter cloth (8-2) is embedded in the lower side of the fixed frame (8-1). The filter cloth (8-2) is suspended on the lower side of the support plate (7-1). The left and right sides of the fixed frame (8-1) are both slidably provided with slide rails (8-3). The slide rails (8-3) on both sides are respectively The guide blocks (17) are respectively fixed on the inner side walls on the left and right sides of the box body (1). The upper side of the slide rail (8-3) is provided with a guide block (17). The cross section of the guide block (17) is triangular. The front and rear ends of the guide block (17) are respectively fixedly connected to the inner side walls on the front and rear sides of the box body (1). After the front side of the fixed frame (8-1) passes through the front side wall of the box body (1), it is fixedly connected to the rear side wall of the pull plate (8-4). The rear side of the pull plate (8-4) is in contact with the outer side wall of the front side of the box body (1).

2. The filtering function system of the waste acid water treatment and neutralization device according to claim 1, characterized in that: A guide plate (9) is provided on one side of the discharge pipe (4). The guide plate (9) is arranged inside the box body (1). The right side of the guide plate (9) is arranged to be tilted downward. The guide plate (9) guides the waste acid water.

3. The filtering function system of the waste acid water treatment and neutralization device according to claim 1, characterized in that: A No. 1 sealing ring (10) is fixed on the rear side wall of the pull plate (8-4), and the No. 1 sealing ring (10) is sleeved on the outside of the fixed frame (8-1). The rear side wall of the No. 1 sealing ring (10) is arranged in contact with the outer side wall of the front side of the box body (1), and the gap between the pull plate (8-4) and the box body (1) is sealed by the No. 1 sealing ring (10).

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