Energy-saving industrial wastewater treatment equipment

Abstract

This invention relates to the field of industrial wastewater treatment technology and discloses an energy-saving industrial wastewater treatment device. The device includes a support frame with a filter box fixedly connected to it. The top of the filter box has an inlet hole. Inside the filter box is a tilting filter section, which includes a rectangular base, multiple filter bags, a flexible scraper ring, and a lifting assembly. The rectangular base is fixedly installed on the inner wall of the filter box. The flexible scraper ring is driven to move vertically up and down within the filter box. The lifting assembly includes a drive component and a rectangular support frame. The rectangular support frame is connected to the bottom of the filter bags. The drive component is located inside the filter box, and its output end is connected to the rectangular support frame. The drive component drives the rectangular support frame to move vertically up and down within the filter box. This invention achieves continuous self-cleaning of the filter bags by alternating wastewater filtration and tilting cleaning of two sets of filter bags in the tilting filter section, reducing filter bag clogging while ensuring continuous filtration capacity for industrial wastewater.

Description

Technical Field

[0001] This invention relates to the field of industrial wastewater treatment technology, and more specifically, to an energy-saving industrial wastewater treatment device. Background Technology

[0002] Industrial wastewater refers to various types of wastewater generated during industrial production processes. It typically contains suspended particles, solid impurities, salts, and other pollutants. For some high-salt, high-concentration industrial wastewater generated by industries such as chemical, electroplating, and printing and dyeing, it is usually necessary to filter out particulate impurities in the wastewater before it can be treated for resource recovery. In existing industrial wastewater treatment processes, the wastewater usually passes through filter bags first to intercept particulate impurities in the wastewater.

[0003] However, during long-term continuous treatment, particulate impurities in the wastewater gradually accumulate and adhere to the inner surface of the filter bag, causing the effective filtration area of ​​the filter bag to gradually decrease. Consequently, the flow rate of wastewater through the filter bag decreases, requiring regular cleaning of the filter bag. Traditional equipment typically requires shutdown and disassembly of the filter bag for cleaning, which affects the continuous filtration of wastewater. This is especially true when treating high-concentration industrial wastewater, where the amount of particulate impurities per unit volume of wastewater is high, causing the filter bag to accumulate a high level of dirt in a short period of time. This necessitates frequent shutdowns for cleaning, increasing the workload of equipment maintenance and potentially causing intermittent interruptions in the wastewater filtration process. Summary of the Invention

[0004] This invention provides an energy-saving industrial wastewater treatment device that solves the technical problems in related technologies where particulate impurities tend to accumulate and adhere to the inner surface of the filter bag during the industrial wastewater filtration process. Traditional cleaning methods are insufficient to remove them, leading to a decrease in the filter bag's filtration capacity and the need for frequent shutdowns for cleaning, making continuous filtration difficult. Furthermore, although some devices use the method of lifting the filter bag upwards to clean the impurities by their own gravity, the top of the filter bag after being flipped up is relatively flat, and particulate impurities are still easily retained. At the same time, the impurities that have accumulated at the bottom of the filter bag for a long time are tightly attached and cannot be completely removed by simply flipping the bag. The residual impurities will continue to affect the effective filtration area of ​​the filter bag and the wastewater filtration flow rate.

[0005] This invention provides an energy-saving industrial wastewater treatment device, including a support frame, on which a filter box is fixedly connected. The top of the filter box has an inlet hole, and the filter box contains a tilting filter section. The tilting filter section includes a rectangular base, multiple filter bags, a flexible scraper ring, and a lifting assembly. The rectangular base is fixedly installed on the inner wall of the filter box, and each rectangular base has a rectangular hole. The upper end of the filter bag is installed in the rectangular hole. The flexible scraper ring is installed inside the filter box and located above the rectangular base. The flexible scraper ring is driven to move vertically up and down within the filter box. The lifting assembly includes a drive component and a rectangular support frame. The rectangular support frame is connected to the bottom of the filter bag. The drive component is arranged inside the filter box, and its output end is connected to the rectangular support frame. The drive component is used to drive the rectangular support frame to move vertically up and down within the filter box.

[0006] In a preferred embodiment, the drive component includes an electric sliding plate and a top cylinder. The electric sliding plate is fixedly installed on the inner wall of the filter box, and the top cylinder is installed on the inner wall of the filter box. The output end of the electric sliding plate is connected to the lower end of the top cylinder, and the upper end of the top cylinder is fixedly connected to a rectangular support frame.

[0007] In a preferred embodiment, a secondary lifting component is installed inside the filter box. The secondary lifting component includes a top plate. Vertical grooves are provided on opposite sides of the rectangular support frame. The top plate is slidably connected between the two vertical grooves. A top rod is slidably connected to the lower end face of the top plate. An oblong groove is provided on the outer wall of the top cylinder along its own axis. A deflector is slidably connected to the outer wall of the top rod in the oblong groove. A sliding groove is provided on the upper end face of the electric sliding plate. A sliding seat is slidably connected in the sliding groove. A top spring is slidably connected between the sliding seat and the sliding groove. Several wedge-shaped plates that cooperate with the deflector are equidistantly connected to the upper end face of the sliding seat. A trapezoidal plate that cooperates with the sliding seat is installed in the inner cavity of the filter box.

[0008] In a preferred embodiment, an electric telescopic rod assembly is fixedly connected to the upper cavity wall of the filter box, and a sliding frame is fixedly connected to the lower end of the electric telescopic rod assembly. The flexible scraper ring is fixedly installed on the inner wall of the sliding frame.

[0009] In a preferred embodiment, the inner wall of the sliding frame is provided with a plurality of guide grooves, and the upper end face of the flexible scraper ring gradually slopes towards the side closer to the sliding frame from top to bottom.

[0010] In a preferred embodiment, the flip-type filter section further includes a collection component, which includes an annular groove on the upper surface of a rectangular base, and a discharge pipe installed on the side of the filter box. One end of the discharge pipe passes through the filter box and extends into the annular groove, and the other end of the discharge pipe is in communication with the interior of the annular groove.

[0011] In a preferred embodiment, the front end of the discharge pipe is connected to an outlet pipe.

[0012] In a preferred embodiment, the upper end face of the filter box is connected to two inlet pipe groups. The inlet pipe group located at the front is connected to the inlet holes at odd-numbered positions from left to right, and the inlet pipe group located at the rear is connected to the inlet holes at even-numbered positions from left to right.

[0013] In a preferred embodiment, the rear end face of the filter box is connected to a plurality of water inlet pipes at equal intervals.

[0014] In a preferred embodiment, a spring telescopic rod is fixedly connected to the lower end face of the sliding frame via a connecting block, and a scraper is fixedly connected to the end of the spring telescopic rod away from the connecting block.

[0015] The beneficial effects of this invention are as follows: This invention divides multiple filter bags into two groups and uses the two groups of filter bags to filter and rotate for cleaning, so that while one group of filter bags is being cleaned, the other group of filter bags can still filter industrial wastewater, thereby reducing the interruption of the overall wastewater treatment process caused by the filter bag cleaning process and improving the continuous treatment capacity of wastewater.

[0016] This invention uses a lifting component to flip the filter bag from a concave filtration state to an upward flipped state, and a secondary lifting component to further lift the top of the filter bag into an inverted V shape with a high center and low left and right sides. This allows particulate impurities attached to the filter bag to detach from the filter bag under the combined action of flipping, gravity sliding, and scraping by a flexible scraper ring, thereby reducing filter bag blockage caused by continuous attachment of particulate impurities and ensuring the continuous filtration capacity of the filter bag. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a cross-sectional view of the filter box of the present invention from a front view perspective.

[0019] Figure 3 This is a cross-sectional view of the filter box of the present invention from the rear view perspective.

[0020] Figure 4 This is a schematic diagram of the three-dimensional installation structure of the flip-type filter section of the present invention.

[0021] Figure 5 This is a schematic diagram of the lifting component structure of the present invention.

[0022] Figure 6 This is the invention Figure 5 An enlarged schematic diagram of part A of the structure.

[0023] Figure 7 This is a front-view cross-sectional structural diagram of the flip-type filter section of the present invention.

[0024] Figure 8 This is the invention Figure 7 An enlarged schematic diagram of part B of the structure.

[0025] Figure 9 This is the invention Figure 7 An enlarged schematic diagram of part C in the diagram.

[0026] Figure 10 This is a schematic diagram of the flexible scraper ring structure of the present invention.

[0027] Figure 11 This is a schematic cross-sectional view of the connection between the filter bag and the rectangular support frame of the present invention.

[0028] In the diagram: 1. Support frame; 2. Filter box; 3. Inlet pipe assembly; 4. Flip-type filter section; 41. Rectangular seat; 42. Filter bag; 431. Electric telescopic rod assembly; 43. Scraper bar; 432. Flexible scraper ring; 44. Lifting assembly; 441. Guide groove; 442. Electric sliding plate; 443. Top cylinder; 444. Rectangular support frame; 445. Top plate; 446. Top rod; 447. Pulley; 448. Slide seat; 449. Wedge plate; 4410. Trapezoidal plate; 45. Collection assembly; 451. Annular groove; 46. Discharge pipe. Detailed Implementation

[0029] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0030] like Figure 1 , Figure 2 , Figure 4 , Figure 7 , Figure 10 and Figure 11 As shown, this invention aims to solve the technical problem that particulate impurities tend to accumulate and adhere to the inner surface of filter bags during existing industrial wastewater filtration processes, leading to a decrease in the filter bag's filtration capacity and the need for frequent shutdowns for cleaning, making continuous filtration difficult.

[0031] This invention provides an energy-saving industrial wastewater treatment device, including a support frame 1. A filter box 2 is fixedly connected to the support frame 1. The top of the filter box 2 has an inlet hole. The filter box 2 has a flip-type filter section 4 inside. The flip-type filter section 4 includes a rectangular base 41, multiple filter bags 42, a flexible scraper ring 432, and a lifting assembly 44. The rectangular base 41 is fixedly installed on the inner wall of the filter box 2. Each rectangular base 41 has a rectangular hole. The upper end of the filter bag 42 is installed in the rectangular hole. The flexible scraper ring 432 is installed inside the filter box 2 and located on the rectangular base 41. Above, the flexible scraper ring 432 is driven to move vertically up and down inside the filter box 2. The lifting assembly 44 includes a driving component and a rectangular support frame 444. The rectangular support frame 444 is connected to the bottom of the filter bag 42. The driving component is arranged inside the filter box 2, and the output end of the driving component is connected to the rectangular support frame 444. The driving component is used to drive the rectangular support frame 444 to move vertically up and down inside the filter box 2. The upper end face of the filter box 2 is connected to two inlet pipe groups 3. The inlet pipe group 3 located at the front is connected to the inlet holes of the odd number from left to right, and the inlet pipe group 3 located at the rear is connected to the inlet holes of the even number from left to right.

[0032] It should be further explained that the filter box 2 is rectangular in shape, and both the front and rear walls of the filter box 2 are bolted and detachable, allowing the front and rear walls of the filter box 2 to be removed for installation of the flip-type filter section 4. The rectangular base 41 is installed on the inner wall of the filter box 2 via a bolted connection. The inner wall of the rectangular support frame 444 is detachably connected (e.g., by bolting, snap-fitting, etc.) to a rectangular frame. The port of the filter bag 42 is detachably connected (e.g., by binding the filter bag to the rectangular frame with straps, or by clamping the filter bag to the rectangular frame) to the rectangular frame. The lower part of the filter bag 42 initially has a V-shaped longitudinal section (e.g., ...). Figure 11 (As shown).

[0033] Please see Figure 4 , Figure 5 and Figure 7 The driving components include an electric slide plate 442 and a top cylinder 443. The electric slide plate 442 is fixedly installed on the inner wall of the filter box 2, and the top cylinder 443 is installed on the inner wall of the filter box 2. The output end of the electric slide plate 442 is connected to the lower end of the top cylinder 443, and the upper end of the top cylinder 443 is fixedly connected to a rectangular support frame 444.

[0034] It should be further explained that two guide grooves 441 are opened on the left and right inner walls of the filter box 2, and the two guide grooves 441 are symmetrically distributed front and back. The electric sliding plate 442 is composed of an electric telescopic cylinder and a plate body. The lower end of the electric telescopic cylinder is fixedly connected to the lower groove wall of the guide groove 441, and the plate body is fixedly connected to the telescopic end of the electric telescopic cylinder. The lower end of the top cylinder 443 is fixedly connected to the plate body, and the length direction of the top cylinder is perpendicular to the length direction of the plate body. The plate body is slidably connected between the two horizontally opposite guide grooves 441. The rectangular support frame 444 is fixedly connected to the upper end of the top cylinder 443 through a connecting plate. The amount of wastewater discharged after filtration into the filter box 2 is greater than the amount of wastewater entering, so as to avoid industrial wastewater entering the electric telescopic cylinder and affecting its normal operation.

[0035] Please see Figure 2 , Figure 3 , Figure 7 and Figure 8 The flip-type filter section 4 also includes a collection component 45, which includes an annular groove 451 on the upper surface of a rectangular base 41. A discharge pipe 46 is installed on the side of the filter box 2. One end of the discharge pipe passes through the filter box and extends into the annular groove 451, and the other end of the discharge pipe is connected to the inside of the annular groove 451. Several water inlet pipes are equidistantly connected to the rear end face of the filter box 2.

[0036] It should be further explained that the annular groove 451 has a V-shaped cross-section and surrounds the outer periphery of the rectangular hole. A cover plate is fixedly connected to the upper part of the inner cavity of the annular groove 451. Several connecting valves are equidistantly connected on the cover plate. Several filter bags 42 are distributed equidistantly in the transverse direction. Two adjacent filter bags 42 are arranged in a staggered manner. Several partitions are fixedly connected equidistantly in the upper part of the inner cavity of the filter box 2. A liquid passage chamber is set between two adjacent partitions. The number of filter bags 42 is the same as the number of liquid passage chambers. The filter bags 42 are located in the corresponding liquid passage chambers. The number of water inlet pipes is the same as the number of liquid passage chambers, and the water inlet pipes are connected to the corresponding liquid passage chambers. The water inlet pipe port is located above the annular groove 451.

[0037] See Figure 4 and Figure 10 An electric telescopic rod assembly 431 is fixedly connected to the upper cavity wall of the filter box 2. A sliding frame is fixedly connected to the lower end of the electric telescopic rod assembly 431. The flexible scraper ring 432 is fixedly installed on the inner wall of the sliding frame. Several guide grooves are opened on the inner wall of the sliding frame. The upper surface of the flexible scraper ring 432 gradually tilts towards the side closer to the sliding frame from top to bottom.

[0038] It should be further explained that the electric telescopic rod assembly 431 consists of two electric telescopic rods that are symmetrically fixed to the upper wall of the liquid passage chamber. Several electric telescopic rod assemblies 431 are equidistantly arranged, and the number of electric telescopic rod assemblies 431 is the same as the number of liquid passage chambers. The electric telescopic rod assemblies 431 are located in the corresponding liquid passage chambers. The flexible scraper ring 432 is installed on the sliding frame by snap-fit.

[0039] During operation, the industrial wastewater to be treated is first pumped alternately into two inlet pipe groups 3. When the wastewater is pumped into the inlet pipe group 3 located at the front, the pumping of wastewater into the inlet pipe group 3 located at the rear is paused. After being guided by the inlet pipe group 3 at the front, the wastewater flows from top to bottom into its corresponding liquid passage chambers and passes through the corresponding filter bags 42. The filter bags 42 intercept and filter particulate impurities in the wastewater. When it is necessary to switch the liquid passage chamber for liquid supply, the pumping of wastewater into the inlet pipe group 3 at the front is paused, and the pumping is switched to the inlet pipe group 3 located at the rear, so that the wastewater enters the corresponding liquid passage chamber through the other inlet pipe group 3, thereby realizing the alternating liquid supply of the two liquid passage chambers.

[0040] When the flip-type filter unit 4 is working, the filter bags 42 are divided into two groups according to odd and even positions from left to right, and the two groups of filter bags 42 work in a staggered and alternating filtering and cleaning mode. In the initial state, one group of filter bags 42 is in a concave state, filtering the industrial wastewater entering the corresponding liquid passage chamber. At this time, the corresponding top cylinder 443 is located below the rectangular seat 41, while the other group of filter bags 42 is in a flipped state. At this time, the corresponding top cylinder 443 is inserted into the rectangular seat 41. After the group of filter bags 42 in the concave state continues to work for a period of time, the filtered particulate impurities gradually accumulate on its inner surface and inside. At this time, the supply of wastewater to the liquid passage chamber where the group of filter bags 42 is located is stopped, and the lifting assembly 44 is controlled to operate. The top cylinder 443 is connected to filter bags 42 at different positions. The rear top cylinder 443 is connected to the filter bags 42 at odd-numbered positions from left to right, while the front top cylinder 443 is connected to the filter bags 42 at even-numbered positions from left to right. During initial operation, the electric sliding plate 442 is controlled to operate, so that one group of filter bags 42 is in a concave state, while the other group of filter bags 42 is in an upturned state. At the same time, the inlet pipe group 3 corresponding to the filter bags 42 in the concave state is opened, and the inlet pipe group 3 corresponding to the filter bags 42 in the upturned state is closed. This allows industrial wastewater to first enter the liquid passage chamber above the corresponding group of filter bags 42 and flow downward through the filter bags 42, where the filter bags 42 intercept and filter particulate impurities in the wastewater.

[0041] After the first set of filter bags 42 has been filtering continuously for a set working time, the corresponding inlet pipe group 3 is closed to stop the flow of wastewater into the liquid passage chamber above the filter bag 42. Then, the corresponding electric sliding plate 442 is driven to move the top cylinder 443 upward. The top cylinder 443 then moves the rectangular support frame 444 upward. The rectangular support frame 444 then pushes the bottom of the filter bag 42 at the corresponding position upward, causing the originally concave filter bag 42 to gradually flip upward. During the flipping process, the inner wall of the filter bag 42, which was originally facing the liquid passage chamber, gradually flips to the outside. This causes the particulate impurities attached to and accumulated on the inner wall of the filter bag 42 to lose their original support state and slide down along the outer surface of the flipped filter bag 42 under its own gravity, eventually entering the collection component 45 below, thereby achieving the removal of particulate impurities from the surface of the filter bag 42.

[0042] While the first set of filter bags 42 is being flipped and cleaned, another electric sliding plate 442 is driven to move down along the top cylinder 443. The top cylinder 443 then moves the rectangular support frame 444 down, and the rectangular support frame 444 moves down, which in turn moves the other set of filter bags 42 in the opposite direction, so that the other set of filter bags 42, which was originally in the flipped-up state, becomes the concave state. After this set of filter bags 42 is adjusted to the concave state, the inlet pipe group 3 corresponding to the filter bag 42 is opened, while the inlet pipe group 3 corresponding to the first set of filter bags 42 is kept closed. This switches the inflow position of industrial wastewater from the liquid passage chamber corresponding to the first set of filter bags 42 to the liquid passage chamber corresponding to the second set of filter bags 42. Thus, during the process of flipping and cleaning the first set of filter bags 42, the second set of filter bags 42 can take over the filtration work in time, avoiding the interruption of the entire wastewater treatment process due to the cleaning of a single set of filter bags 42.

[0043] When the second set of filter bags 42 reaches the set filtration time, the corresponding inlet pipe group 3 is closed again, and the front and rear electric sliding plates 442 are reversed to move, so that the second set of filter bags 42 gradually flips up from the concave state, while the first set of filter bags 42 changes from the flipped state to the concave state. During the flipping process, the particulate impurities intercepted on the surface of the second set of filter bags 42 fall off under the action of gravity and enter the collection component 45. After the first set of filter bags 42 returns to the concave state, the corresponding inlet pipe group 3 is reopened, so that the industrial wastewater is switched back to the liquid passage chamber of the first set for filtration.

[0044] When the filter bag 42 is in a concave state, the connecting valve located at the corresponding annular groove 451 closes, thereby preventing industrial wastewater from directly entering the annular groove 451 during normal filtration.

[0045] When the filter bag 42 completes a period of filtration and switches to the upward-flipped state for cleaning, the control valve opens. At this time, the particulate impurities that fall off the filter bag 42 during the flipping process, as well as the particulate impurities scraped off by the flexible scraper ring 432, slide down the surface of the filter bag 42 and fall into the annular groove 451 below under their own gravity. This concentrates the particulate impurities that fall off the filter bag 42 during the cleaning process, preventing the particulate impurities from falling back into the filtration area or re-entering the filter bag 42.

[0046] After the particulate impurities on the filter bag 42 are basically removed, external clean water is pumped into the inlet pipe. The clean water then enters the annular trough 451, where the particulate impurities accumulated in the annular trough 451 mix with the incoming clean water to form a slurry. The slurry is then transported to the discharge pipe 46 and then to the outside through the outlet pipe, thereby timely discharging the particulate impurities that fell into the annular trough 451 during the cleaning of the filter bag 42, and preventing the particulate impurities from continuously accumulating inside the annular trough 451 and affecting the subsequent impurity collection.

[0047] Through the alternating movements of the front and rear rows of electric sliding plates 442, the top cylinder 443, and the rectangular support frame 444, the adjacent filter bags 42 alternate between the filtration state and the overturning cleaning state. While one set of filter bags 42 is filtering, the other set of filter bags 42 can be overturned to remove impurities, thereby realizing the periodic self-cleaning of the filter bags 42 and reducing the impact of continuous accumulation of particulate impurities on the filtration area and filtration efficiency of the filter bags 42, so that the wastewater filtration process can be carried out continuously.

[0048] While the filter bag 42 is flipped upwards and subjected to gravity cleaning, it is pushed until it is fully flipped up and taut. Then, the electric telescopic rod assembly 431 is controlled to reciprocate, causing the sliding frame to move up and down along the surface of the flipped filter bag 42. The sliding frame further drives the flexible scraper ring 432 to move synchronously, ensuring the flexible scraper ring 432 continuously adheres to and scrapes the surface of the flipped filter bag 42. This mechanically scrapes away particulate impurities adhering to the surface of the filter bag 42, gradually detaching them from the filter bag 42. During the reciprocating motion of the flexible scraper ring 432, particles scraped off below the flexible scraper ring 432... Particulate impurities can directly detach from the flexible scraper ring 432 and fall downwards into the collection component 45. Particulate impurities located above the flexible scraper ring 432 are carried to the upper surface of the flexible scraper ring 432 during the scraping process. Since the upper surface of the flexible scraper ring 432 is set as an outward inclined surface, the particulate impurities falling onto its upper surface roll outwards along the inclined surface under their own gravity and enter the guide channel. Then, they are guided downwards into the collection component 45 through the guide channel, thereby discharging particulate impurities from different positions scraped off by the flexible scraper ring 432 downwards respectively, reducing the retention of particulate impurities at the flexible scraper ring 432.

[0049] In the above embodiments, during the process of cleaning particulate impurities by lifting and turning the filter bag 42 upwards, since the top area of ​​the filter bag 42 is usually still relatively flat after being lifted, some particulate impurities can easily accumulate in the top area after being turned over, making it difficult to continue to be discharged downwards. To solve this problem, in another embodiment of the present invention, please refer to... Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 The filter box 2 is equipped with a secondary lifting component, which includes a top plate 445 and a rectangular support frame 444 with vertical grooves on opposite sides. The top plate 445 is slidably connected between the two vertical grooves. The top plate 445 consists of a vertical section plate and an inverted V-shaped plate fixedly connected to the upper part of the vertical section plate. A top rod 446 is fixedly connected to the lower end face of the top plate 445 and slidably connected to the top cylinder 443. The outer wall of the top cylinder 443 has an oblong groove along its own axis. The outer wall of the top rod 446 is fixedly connected to a slidably connected oblong groove. The guide groove has a 447 in the slot, and a slide groove is opened on the upper end face of the electric slide plate 442. A slide seat 448 is slidably connected in the slide groove. A top spring is fixedly connected between the slide seat 448 and the slide groove. Several wedge plates 449 that cooperate with the 447 are fixedly connected at equal intervals on the upper end face of the slide seat 448. A trapezoidal plate 4410 that cooperates with the slide seat 448 is fixedly connected on the side wall of the guide groove 441 near the electric slide plate 442. The trapezoidal plate 4410 is a right trapezoid with its inclined surface facing downward.

[0050] It should be noted that the outer wall of the inverted V-shaped plate in the top plate 445 is fixedly connected with an elastic rubber layer, which can protect the contact point between the filter bag 42 and the top plate 445, reduce the rigid friction of the top plate 445 on the filter bag 42, the waist-shaped groove is vertical, and the push post 447 and the push rod 446 are perpendicular to each other.

[0051] In other embodiments of the present invention, the secondary lifting component may also be an electric push rod or cylinder fixedly installed in the top cylinder 443. When the secondary lifting component is an electric push rod (not shown), the output end of the electric push rod is connected to the top rod, and the electric push rod is used to drive the top rod to move vertically up and down in the top cylinder 443.

[0052] During operation, when the electric slide plate 442 moves upward to the final stroke, it triggers the secondary lifting component. The secondary lifting component further lifts the top of the flipped-up filter bag 42, causing the filter bag 42 to fully flip up, forming a shape that is high in the middle and low on the left and right sides. This allows the particulate impurities that were originally concentrated at the bottom of the filter bag 42 to slide down along the inclined surface formed at the top of the filter bag 42 to the left and right sides, and further enter the collection component 45, reducing the residue of particulate impurities on the filter bag 42. Specifically, when the electric slide plate 442 moves upward to the final stroke, the electric slide plate 442 drives the slide base 448 to move to the position where it abuts against the inclined surface of the lower part of the trapezoidal plate 4410. As 48 continues to move upward, the sliding seat 448 on the inclined surface of the trapezoidal plate 4410 moves laterally, which in turn drives the wedge plate 449 to move synchronously. After the lateral movement, the wedge plate 449 abuts against the pusher 447 and squeezes the pusher 447 during the continued lateral movement, causing the pusher 447 to move upward along the waist-shaped groove. The pusher 447 then drives the push rod 446 to move upward, and the push rod 446 pushes the top plate 445 to move upward along the vertical groove. The top plate 445 then pushes the top of the filter bag 42 to rise. The top of the top plate 445 is inverted V-shaped, so that the top of the filter bag 42 after being pushed up is high in the middle and low on the left and right sides, which makes it easier for the impurities that were originally accumulated at the bottom of the filter bag 42 to fall and be discharged.

[0053] In the above embodiments, during long-term filtration, particulate impurities mainly accumulate in the bottom area of ​​the filter bag in a concave state. The particulate impurities in this area are closely attached to the inner surface of the filter bag, and it is difficult to completely remove them by simply turning the filter bag over. As the subsequent filtration work continues, the residual impurities will continue to affect the effective filtration area of ​​the filter bag and the filtration flow rate of the wastewater. Please refer to 10, where a spring telescopic rod is fixedly connected to the lower end face of the sliding frame through a connecting block, and a scraper 43 is fixedly connected to the end of the spring telescopic rod away from the connecting block.

[0054] It should be noted that the spring telescopic rod consists of multiple sleeves that slide together and a limiting spring that is fixedly connected between the inner cavities of two adjacent sleeves.

[0055] During operation, the scraper 43 is always in contact with the surface of the filter bag 42 under the pushing action of the spring telescopic rod. When it moves to the position where the upper part of the filter bag 42 is lifted, the scraper 43 moves laterally under the pushing action of the spring telescopic rod, scraping along the surface of the upper part of the filter bag 42 in the shape of an inverted V, scraping off all the particulate impurities attached to the filter bag 42, reducing the impact of continuous accumulation of impurities on the filtration flux of the filter bag 42.

[0056] The embodiments of this example have been described above. However, this example is not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of this example, and all of them are within the protection scope of this example.

Claims

1. An energy-saving industrial wastewater treatment device, comprising a support frame (1), wherein a filter box (2) is fixedly connected to the support frame (1), and an inlet hole is provided on the top of the filter box (2), characterized in that, The filter box (2) is equipped with a flip-type filter section (4). The flip-type filter section (4) includes a rectangular seat (41), multiple filter bags (42), a flexible scraper ring (432), and a lifting assembly (44). The rectangular seat (41) is fixedly installed on the inner wall of the filter box (2). Each rectangular seat (41) has a rectangular hole. The upper end of the filter bag (42) is installed in the rectangular hole. The flexible scraper ring (432) is installed inside the filter box (2) and located above the rectangular seat (41). The flexible scraper ring (432) is driven to move vertically up and down inside the filter box (2). The lifting assembly (44) includes a driving component and a rectangular support frame (444). The rectangular support frame (444) is connected to the bottom of the filter bag (42). The driving component is arranged inside the filter box (2), and the output end of the driving component is connected to the rectangular support frame (444). The driving component is used to drive the rectangular support frame (444) to move vertically up and down inside the filter box (2).

2. The energy-saving industrial wastewater treatment equipment according to claim 1, characterized in that, The driving component includes an electric sliding plate (442) and a top cylinder (443). The electric sliding plate (442) is fixedly installed on the inner wall of the filter box, and the top cylinder (443) is installed on the inner wall of the filter box (2). The output end of the electric sliding plate (442) is connected to the lower end of the top cylinder (443), and the upper end of the top cylinder (443) is fixedly connected to a rectangular support frame (444).

3. The energy-saving industrial wastewater treatment equipment according to claim 2, characterized in that, The filter box (2) is equipped with a secondary lifting component, which includes a top plate (445). Vertical grooves are provided on opposite sides of the rectangular support frame (444), and the top plate (445) is slidably connected between the two vertical grooves. A top rod (446) is fixedly connected to the lower end face of the top plate (445) and slidably connected in the top cylinder (443). An oblong groove is provided on the outer wall of the top cylinder (443) along its axial direction. A [missing information - likely a component or part] is fixedly connected to the outer wall of the top rod (446). A slidable pin (447) is connected in the waist-shaped groove. The upper end face of the electric slide plate (442) is provided with a slide groove. A slide seat (448) is slidably connected in the slide groove. A top spring is fixedly connected between the slide seat (448) and the slide groove. Several wedge plates (449) that cooperate with the pin (447) are fixedly connected at equal intervals on the upper end face of the slide seat (448). A trapezoidal plate (4410) that cooperates with the slide seat (448) is installed in the inner cavity of the filter box (2).

4. The energy-saving industrial wastewater treatment equipment according to claim 1, characterized in that, An electric telescopic rod assembly (431) is fixedly connected to the upper cavity wall of the filter box (2), and a sliding frame is fixedly connected to the lower end of the electric telescopic rod assembly (431). The flexible scraper ring (432) is fixedly installed on the inner wall of the sliding frame.

5. The energy-saving industrial wastewater treatment equipment according to claim 4, characterized in that, The inner wall of the sliding frame is provided with several guide grooves, and the upper surface of the flexible scraper ring (432) gradually tilts towards the side closer to the sliding frame from top to bottom.

6. The energy-saving industrial wastewater treatment equipment according to claim 1, characterized in that, The flip-type filter section (4) also includes a collection component (45), which includes an annular groove (451) on the upper surface of a rectangular base (41). A discharge pipe (46) is installed on the side of the filter box (2). One end of the discharge pipe passes through the filter box and extends into the annular groove (451), and one end of the discharge pipe is in communication with the inside of the annular groove (451).

7. The energy-saving industrial wastewater treatment equipment according to claim 6, characterized in that, The front end of the discharge pipe (46) is connected to an outlet pipe.

8. The energy-saving industrial wastewater treatment equipment according to claim 1, characterized in that, The filter box (2) has two inlet pipe groups (3) connected to its upper end face. The inlet pipe group (3) located at the front is connected to the inlet holes at odd positions from left to right, and the inlet pipe group (3) located at the rear is connected to the inlet holes at even positions from left to right.

9. An energy-saving industrial wastewater treatment device according to claim 6, characterized in that, The filter box (2) has several water inlet pipes that are equidistantly connected to its rear end face.

10. An energy-saving industrial wastewater treatment device according to claim 4, characterized in that, A spring telescopic rod is fixedly connected to the lower end face of the sliding frame via a connecting block, and a scraper (43) is fixedly connected to the end of the spring telescopic rod away from the connecting block.

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