An apparatus and method for treating industrial wastewater

Abstract

The present invention relates to the field of wastewater treatment technology, and specifically to an industrial wastewater treatment device and method, including a treatment tank, wherein a partition is provided in the treatment tank, and the interior of the treatment tank is divided into a sedimentation area and a flushing area by the partition, and a water spray rack is installed at the top of the flushing area, and a collecting component is movably installed on the top of the treatment tank, and the collecting component is controlled by a driving mechanism installed on the treatment tank to reciprocate. The present invention automatically collects suspended matter by means of a collecting component that is movable above the wastewater liquid level in the treatment tank, and when the collecting component reaches the flushing area, the collecting hood and the net bag can be automatically turned over and flushed, and when the collecting component returns, the collecting hood will not fall and will not push the suspended matter to the corners, and the collecting hood will only fall for the next collection process when it is fully reset, which is ingenious and convenient, with a high degree of automation, and does not require manual operation.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, and in particular to a device and method for treating industrial wastewater. Background Art

[0002] Industrial wastewater includes production wastewater, production sewage and cooling water, and refers to wastewater and waste liquid generated in the industrial production process, which contains industrial production materials, intermediate products, by-products and pollutants generated in the production process that are lost with water. Industrial wastewater is of various types and has complex components.

[0003] Paper mills also generate a large amount of wastewater during the production process. For example, a large amount of wastewater will be generated in pulping, conditioning, papermaking and other processes. These wastewaters will be subjected to physical and biochemical combined methods, coagulation and sedimentation to remove suspended matter in the wastewater, chemical methods for decolorization, and then flotation is used to recover white water fibrous solids. A large amount of foam will be generated in these wastewaters, and it is difficult to burst automatically, so there will be more foam accumulation on the surface of the wastewater. When the flotation method is used to recover white water fibrous solids, suspended matter in the water, such as short fibers, will adhere to these bubbles, and it is more cumbersome to use a net bag to salvage the suspended matter. At present, the Chinese invention patent with the announcement number CN109095633B proposes an industrial wastewater treatment device, which mainly cooperates with a soft thorn collection mechanism, a discharge pipe, a negative pressure pump, etc. to allow the short fiber bubbles with some adhesion to automatically collect, puncture, and bond short fibers over a large area, without the need for multiple salvages, thereby reducing labor intensity. However, although it effectively overcomes the impact of foam, it still relies on manual salvage, which is not conducive to improving the level of automation and improving production efficiency, and it will have adverse effects on the health of workers when working near the sewage pool. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides an industrial wastewater treatment device and method, which can effectively solve the problem that the prior art relies on manual salvage of suspended matter, which is time-consuming and labor-intensive.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] An industrial wastewater treatment device comprises a treatment tank, wherein a partition is provided in the treatment tank, wherein the interior of the treatment tank is divided into a settling area and a flushing area by the partition, wherein a water spraying frame is installed at the top of the flushing area, and a collecting assembly is movably installed at the top of the treatment tank, wherein the collecting assembly is controlled by a driving mechanism installed on the treatment tank to reciprocate;

[0007] Among them, the collecting component includes a movable frame, a collecting cover is hinged at the bottom end of one side of the movable frame, a pricking part is provided at the opening of the collecting cover, and a net bag is connected to the rear end of the collecting cover. When the collecting component is located in the sedimentation area, the bottom end of the collecting cover is located below the liquid surface of the wastewater to collect suspended matter, and the partition causes the collecting cover to deflect upward when the collecting component passes by. After the collecting component enters the flushing area, the water spray rack is turned on to flush the net bag.

[0008] The wastewater is passed into the sedimentation area so that its liquid level is always above the bottom of the falling collection hood. The collection assembly is moved from left to right by the driving mechanism. Taking the position shown in the figure as an example, the collection hood will collect all the suspended matter on the wastewater surface and puncture the foam on the liquid surface. The suspended matter and wastewater entering the collection hood enter the net bag, and the net bag collects the useful recyclables. When the collection assembly gradually moves to the flushing area, the collection hood will be blocked by the partition and rotate upward until the collection assembly is just below the water spray rack and the collection hood is completely rotated. At this time, the water spray rack is also opened, and the water flows down to flush the net bag, so that the collected recyclables fall into the flushing area, and the recyclables can be collected by filtering later. After a period of time, the driving mechanism controls the collection assembly to return to the leftmost end and wait for the next collection process. This method cleverly achieves the automatic collection and flushing of suspended matter without manual operation. It only requires setting the working mode of the drive mechanism, which can effectively avoid contamination of the operator. The collection cover can also automatically flip over when it reaches the flushing area, making it more convenient to flush the collected matter. It is simple and efficient.

[0009] In the above-mentioned industrial wastewater treatment device, the driving mechanism includes a double-outlet motor and two belts, the two belts are respectively located on both sides of the treatment tank, each belt is installed by two pulleys, and the two pulleys located at the same end are synchronously driven by the double-outlet motor, and both ends of the movable frame are provided with a strap, and both sides of the treatment tank are provided with a slide groove for the strap to move, and the two straps are respectively connected to the two belts.

[0010] In the above-mentioned industrial wastewater treatment device, an equipment seat is provided on the inner wall of the flushing area, and a trigger button is provided on the side of the equipment seat facing the collecting component. When the collecting component squeezes the trigger button, the water spray rack opens.

[0011] In the above-mentioned industrial wastewater treatment device, the top of the partition is connected with a horizontal lattice, and the lattice is located in the flushing area. When the collection cover moves rightward through the partition, the collection cover gradually rotates upward, and when the collection cover passes over the partition, the collection cover will fall again, so the lattice is set to support the collection cover, and the top of the lattice is flush with the top of the partition, so that the collection cover and the net bag are stably in an inverted state, so that the collected objects in the net bag can be washed down more smoothly by the water flow.

[0012] In the above-mentioned industrial wastewater treatment device, the tip of the puncture needle portion is located behind the opening of the collection cover.

[0013] In the above-mentioned industrial wastewater treatment device, a slope is provided on the side of the partition facing away from the mesh. The setting of the slope can buffer the amplitude of the collection cover rotating when being pressed upward by the partition, so as to prevent the collection cover from rotating directly to an inverted state, causing the collected matter in the net bag to flow out. When the collection cover reaches above the mesh, the collection cover can rotate to an inverted state, and the collected matter will only fall into the flushing area.

[0014] In the above-mentioned industrial wastewater treatment device, a locking mechanism is provided between the collecting hood and the movable frame, and when the collecting assembly reaches above the lattice, the angle of the collecting hood is fixed; an unlocking piece is provided at the left end of the treatment tank, and the collecting hood is screwed down again when the collecting assembly approaches the unlocking piece. When the collecting hood is completely rotated to an inverted state, that is, a state after being rotated clockwise, the angle of the collecting hood is also locked, and the collecting hood will not fall down after it leaves the lattice, until the collecting hood returns to the leftmost end, the unlocking piece can contact the angle lock of the collecting hood, and the collecting hood will fall back to wait for the next collection process. This design can prevent the bottom end of the collecting hood from pushing all the suspended matter to the corners when the collecting assembly returns, thereby affecting the next collection process, and improves stability during operation.

[0015] In the above-mentioned industrial wastewater treatment device, the locking mechanism includes an arc rod installed on the top of the collecting cover, an arc groove for the arc rod to move is provided on the inner wall of the movable frame, a lifting block is inserted at the top of the movable frame, and a clamping rod is connected to the bottom end of the lifting block. The arc rod is provided with a clamping mouth that cooperates with the clamping rod, and the bottom end of the clamping rod is provided with an oblique angle toward the clamping mouth, and the lifting block is provided with a wedge-shaped mouth that matches the unlocking piece. When the lifting block is close to the unlocking piece, the lifting block is lifted.

[0016] When the collecting cover rotates clockwise to an inverted state, the bayonet just reaches under the clamping rod, which clamps the arc rod so that it cannot rotate, thereby fixing the angle of the collecting cover; and when the collecting assembly reaches the leftmost end, the unlocking piece is inserted into the wedge-shaped opening on the lifting block, lifting the lifting block upward, and the clamping rod is removed from the bayonet, allowing the collecting cover to rotate freely, thus enabling the next collection work to proceed normally. This is ingenious and convenient, does not require manual control, and helps to improve work efficiency.

[0017] In the above industrial wastewater treatment device, the depth of the net bag is 0.5-0.8 times the height of the tail end of the collection cover. The net bag will not droop too much, and when the collection cover is inverted during rotation, the net bag can be easily washed back by the water flow and enter the inner side of the collection cover, so that the collected materials can be washed down more fully.

[0018] The present invention also provides a method for treating industrial wastewater, which is applied to the above-mentioned treatment device: the liquid level of the wastewater is maintained above the bottom end of the collecting cover in a falling state, and the collecting component is moved back and forth. When the collecting component moves from left to right, the piercing needle part first punctures the foam and then collects the suspended matter into a net bag. When the collecting component reaches the flushing area, the collecting cover is flipped upward, and the water spray is turned on to flush the collected matter in the net bag down.

[0019] Compared with the prior art, the present invention automatically collects suspended matter by means of a collection assembly movable above the wastewater surface arranged in the treatment tank, and can automatically flip and rinse the collection cover and the net bag when the collection assembly reaches the flushing area; when the collection assembly returns, the collection cover will not fall and will not push the suspended matter to the corners; the collection cover will only fall for the next collection process when it is fully reset, which is ingenious and convenient, with a high degree of automation and no manual operation required. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the left structure in the process of collecting suspended matter of the present invention;

[0022] Figure 2 It is a schematic diagram of the right side structure of the washing net bag of the present invention;

[0023] Figure 3 A top view of the present invention;

[0024] Figure 4 for Figure 3 The cross-sectional view of AA in FIG.

[0025] Figure 5 It is a schematic diagram of the structure of the collection component of the present invention;

[0026] Figure 6 It is a front cross-sectional view of the collecting component of the present invention.

[0027] The numbers in the figure represent: 1. treatment tank; 2. partition; 201. net; 3. sedimentation area; 4. flushing area; 5. collection assembly; 501. movable frame; 502. collection cover; 503. net bag; 504. needle part; 505. board; 506. lifting block; 507. arc rod; 508. arc groove; 509. wedge-shaped mouth; 5010. clamping rod; 5011. clamping mouth; 6. water spray rack; 7. equipment base; 701. pulley; 702. belt; 8. unlocking piece. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0029] The present invention will be further described below in conjunction with the embodiments.

[0030] Example: Refer to Figure 1-Figure 6 , an industrial wastewater treatment device, comprising a treatment tank 1, a partition 2 is arranged in the treatment tank 1, the interior of the treatment tank 1 is divided into a sedimentation area 3 and a flushing area 4 by the partition 2, the sedimentation area 3 is used for sedimentation treatment of wastewater, the liquid level of wastewater should always be lower than the partition 2, a water spraying frame 6 is installed at the top of the flushing area 4, a collecting component 5 is movably installed on the top of the treatment tank 1, and the collecting component 5 is controlled by a driving mechanism installed on the treatment tank 1 to reciprocate;

[0031] The collecting assembly 5 includes a movable frame 501, and a collecting cover 502 is hinged at the bottom end of one side of the movable frame 501. The collecting cover 502 can rotate. Figure 6 The center of rotation of the collecting cover 502 is the inner bottom edge of the movable frame 501, and the maximum downward rotation amplitude of the collecting cover 502 is Figure 6 In the state shown, a needle portion 504 is provided at the opening of the collecting hood 502, and a net bag 503 is connected to the rear end of the collecting hood 502. When the collecting assembly 5 is located in the sedimentation area 3, the bottom end of the collecting hood 502 is located below the liquid surface of the wastewater to collect suspended matter. When the collecting assembly 5 passes by, the partition 2 causes the collecting hood 502 to deflect upward. After the collecting assembly 5 enters the flushing area 4, the water spray rack 6 is turned on to flush the net bag 503.

[0032] The wastewater is introduced into the settling area 3 so that the liquid level is always above the bottom of the falling collection cover 502. The collection assembly 5 is moved from left to right (by Figure 4As shown in the figure, the collecting hood 502 will collect all the suspended matter on the surface of the wastewater, and will also puncture the foam on the surface of the liquid. The suspended matter and wastewater entering the collecting hood 502 will enter the net bag 503, and the net bag 503 will collect the useful recyclables. When the collecting component 5 gradually moves to the flushing area 4, the collecting hood 502 will be blocked by the partition 2 and rotate upward until the collecting component 5 is just below the water spray rack 6. The collecting hood 502 is completely rotated. At this time, the water spray rack 6 is also just opened, and the water flows down to wash the net bag 503, so that the collected recyclables fall into the flushing area 4. The recyclables can be collected by filtering in the later stage. After a period of time, the driving mechanism controls the collecting component 5 to return to the leftmost end and wait for the next collection process. This method cleverly realizes the automatic collection and flushing of suspended matter, without manual operation, and only needs to set the working mode of the driving mechanism, which can effectively avoid pollution to the operator, and the collecting hood 502 can also automatically flip when it reaches the flushing area 4, which is more convenient to flush the collected matter, simple and efficient.

[0033] Reference Figure 2 The driving mechanism includes a double-outlet motor and two belts 702. The two belts 702 are respectively located on both sides of the processing tank 1. Each belt 702 is installed by two pulleys 701. The two pulleys 701 located at the same end are synchronously driven by the double-outlet motor. Both ends of the movable frame 501 are provided with a take-up plate 505. Both sides of the processing tank 1 are provided with a slide groove for the take-up plate 505 to move. The two take-up plates 505 are respectively connected to the two belts 702. The movable frame 501 is movably installed through the take-up plate 505. After the working mode of the double-outlet motor is set, the take-up plate 505 can be driven to move through the belt 702, that is, the position of the movable frame 501 can be controlled. When the collecting component 5 reaches the end point, the double-outlet motor rotates in the opposite direction to move the collecting component 5 back.

[0034] Reference Figure 2-3 , an equipment seat 7 is provided on the inner wall of the flushing area 4, and a trigger button is provided on the side of the equipment seat 7 facing the collecting assembly 5. When the collecting assembly 5 squeezes the trigger button, the water spraying frame 6 is turned on. By arranging a trigger button that cooperates with the movable frame 501 on the equipment seat 7, when the collecting assembly 5 reaches the rightmost end, the trigger button is squeezed just to make the water spraying frame 6 start to spray water, eliminating manual control or program control, which is efficient and convenient.

[0035] Reference Figure 1, the top of the partition 2 is connected with a horizontal sling net 201, and the sling net 201 is located in the flushing area 4. When the collection cover 502 moves rightward and passes the partition 2, the collection cover 502 gradually rotates upward, and when the collection cover 502 passes over the partition 2, the collection cover 502 will fall again, so the sling net 201 is provided to support the collection cover 502, and the top of the sling net 201 is flush with the top of the partition 2, so that the collection cover 502 and the net bag 503 are stably in an inverted state, so that the collected objects in the net bag 503 can be washed down by the water flow more smoothly.

[0036] Reference Figure 5 In order to avoid scratches between the needle portion 504 and the mesh 201 , and also to prevent the needle portion 504 from damaging the mesh 201 when the collecting assembly 5 moves to the left, the tip of the needle portion 504 is located behind the opening of the collecting cover 502 .

[0037] Reference Figure 1 and Figure 4 , a slope is provided on the side of the partition 2 facing away from the net 201. The setting of the slope can buffer the amplitude of the rotation of the collection cover 502 when it is pressed upward by the partition 2, so as to prevent the collection cover 502 from directly rotating to an inverted state, causing the collected matter in the net bag 503 to flow out. When the collection cover 502 reaches the top of the net 201, the collection cover 502 can rotate to an inverted state, and the collected matter will only fall into the washing area 4.

[0038] Reference Figure 4 and Figure 6 A locking mechanism is provided between the collecting cover 502 and the movable frame 501. When the collecting assembly 5 reaches above the grid 201, the angle of the collecting cover 502 is fixed; an unlocking piece 8 is provided at the left end of the processing tank 1, and when the collecting assembly 5 approaches the unlocking piece 8, the collecting cover 502 is screwed down again.

[0039] When the collecting cover 502 is completely rotated to an inverted state (i.e., a state after being rotated 90 degrees clockwise), the angle of the collecting cover 502 is also locked, and after it leaves the sling net 201, the collecting cover 502 will not fall down, until the collecting cover 502 returns to the leftmost end, the unlocking member 8 can contact the angle lock of the collecting cover 502, and the collecting cover 502 will fall back to wait for the next collection process. This design can prevent the bottom end of the collecting cover 502 from pushing all the suspended matter to the corner position when the collecting assembly 5 returns, thereby affecting the next collection process, and improves the stability during operation.

[0040] Reference Figure 6The locking mechanism includes an arc rod 507 installed on the top of the collecting cover 502, an arc groove 508 for the arc rod 507 to move is provided on the inner wall of the movable frame 501, a lifting block 506 is inserted at the top of the movable frame 501, and the bottom end of the lifting block 506 is connected to a clamping rod 5010, and the arc rod 507 is provided with a clamping slot 5011 that cooperates with the clamping rod 5010, and the bottom end of the clamping rod 5010 is provided with an oblique angle facing the clamping slot 5011. When the arc rod 507 rotates clockwise, it will not be hindered by the clamping rod 5010. The arc rod 507 can squeeze the oblique angle to move the clamping rod 5010 upward, and the lifting block 506 is provided with a wedge-shaped opening 509 adapted to the unlocking piece 8. When the lifting block 506 is close to the unlocking piece 8, the lifting block 506 is lifted.

[0041] When the collecting cover 502 rotates clockwise to an inverted state, the latch 5011 just reaches under the latch rod 5010, and the latch rod 5010 clamps the arc rod 507 so that it cannot rotate, thereby fixing the angle of the collecting cover 502. When the collecting assembly 5 reaches the leftmost end, the unlocking piece 8 is just inserted into the wedge-shaped opening 509 on the lifting block 506, lifting the lifting block 506 upward, and the latch rod 5010 is removed from the latch 5011, and the collecting cover 502 rotates freely, that is, it can carry out the next collection work normally. This is clever and convenient, does not require manual control, and helps to improve work efficiency.

[0042] It should be noted that the depth of the net bag 503 is 0.5-0.8 times the height of the tail end of the collection cover 502. The net bag 503 will not droop too much, and when the collection cover 502 is inverted during rotation, the net bag 503 can be easily washed back by the water flow and enter the inner side of the collection cover 502, so that the collected materials can be washed down more fully.

[0043] The present invention also provides a method for treating industrial wastewater, which is applied to the above treatment device. The method is: the liquid level of the wastewater is maintained above the bottom end of the collecting cover 502 in a falling state, and the collecting component 5 is moved back and forth. When the collecting component 5 moves from left to right, the puncture needle part 504 first punctures the foam and then collects the suspended matter into the net bag 503. When the collecting component 5 reaches the flushing area 4, the collecting cover 502 is flipped upward, and the water spray is turned on to flush the collected matter in the net bag 503.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An industrial wastewater treatment device, comprising a treatment tank (1), characterized in that: A partition (2) is provided in the processing tank (1), and the interior of the processing tank (1) is divided into a settling area (3) and a washing area (4) by the partition (2). A water spray frame (6) is installed at the top of the washing area (4). A collecting assembly (5) is movably installed at the top of the processing tank (1), and the collecting assembly (5) is controlled by a driving mechanism installed on the processing tank (1) to move back and forth; The collecting assembly (5) comprises a movable frame (501), a collecting cover (502) is hingedly connected to the bottom end of one side of the movable frame (501), a pricking needle portion (504) is provided at the opening of the collecting cover (502), a net bag (503) is connected to the rear end of the collecting cover (502), when the collecting assembly (5) is located in the settling area (3), the bottom end of the collecting cover (502) is located below the liquid surface of the wastewater to collect suspended matter, the partition (2) causes the collecting cover (502) to deflect upward when the collecting assembly (5) passes by, and after the collecting assembly (5) enters the flushing area (4), the water spray frame (6) is turned on to flush the net bag (503). The top end of the partition (2) is connected to a horizontal mesh (201), and the mesh (201) is located in the flushing area (4). A locking mechanism is provided between the collecting cover (502) and the movable frame (501); when the collecting assembly (5) reaches above the cladding net (201), the angle of the collecting cover (502) is fixed; an unlocking member (8) is provided at the left end of the processing tank (1); when the collecting assembly (5) approaches the unlocking member (8), the collecting cover (502) is screwed down again. The locking mechanism comprises an arc-shaped rod (507) mounted on the top of the collecting cover (502); an arc-shaped groove (508) for the arc-shaped rod (507) to move is provided on the inner wall of the movable frame (501); a lifting block (506) is inserted at the top of the movable frame (501); a clamping rod (5010) is connected to the bottom end of the lifting block (506); a clamping mouth (5011) cooperating with the clamping rod (5010) is provided on the arc-shaped rod (507); an oblique angle facing the clamping mouth (5011) is provided on the bottom end of the clamping rod (5010); a wedge-shaped mouth (509) adapted to the unlocking member (8) is provided on the lifting block (506); and when the lifting block (506) is close to the unlocking member (8), the lifting block (506) is lifted.

2. The industrial wastewater treatment device according to claim 1, characterized in that: The driving mechanism comprises a double-output motor and two belts (702), the two belts (702) are respectively located on both sides of the processing tank (1), each belt (702) is mounted by two pulleys (701), and the two pulleys (701) located at the same end are synchronously driven by the double-output motor, both ends of the movable frame (501) are provided with a strap (505), both sides of the processing tank (1) are provided with a slide groove for the strap (505) to move, and the two straps (505) are respectively connected to the two belts (702).

3. The industrial wastewater treatment device according to claim 2, characterized in that: An equipment seat (7) is provided on the inner wall of the flushing area (4), and a trigger button is provided on the side of the equipment seat (7) facing the collecting component (5), and the water spray frame (6) is opened when the collecting component (5) presses the trigger button.

4. The industrial wastewater treatment device according to claim 1, characterized in that: The tip of the puncture needle portion (504) is located behind the opening of the collection cover (502).

5. The industrial wastewater treatment device according to claim 1, characterized in that: The partition plate (2) is provided with a slope on the side facing away from the mesh (201).

6. The industrial wastewater treatment device according to claim 1, characterized in that: The depth of the net bag (503) is 0.5-0.8 times the height of the tail end of the collection cover (502).

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