Paper pulp papermaking sewage treatment and purification device

Abstract

The invention discloses a paper pulp papermaking sewage treatment and purification device, and relates to the technical field of paper pulp sewage treatment, the paper pulp papermaking sewage treatment and purification device comprises a filtering chamber and a stirring barrel which are fixedly connected together up and down, a conveying pipe is arranged between the filtering chamber and the stirring barrel, and the paper pulp papermaking sewage treatment and purification device further comprises a filtering piece arranged in the filtering chamber, a cleaning mechanism is arranged between the filtering piece and the filtering chamber and is used for cleaning the filtering piece. According to the sewage treatment device, sewage is filtered through a filter plate, a belt is used for driving a scraping plate to move, residual flocculates on the filter plate are cleaned away through the scraping plate, meanwhile, in the moving process of the scraping plate, a cam drives the whole cleaning mechanism to rotate within a certain angle range, and a mounting plate and an inclined plate collide to generate vibration; and flocculates in the filter plate can be vibrated out, flocculates on the scraping plate can be vibrated down, and the flocculates on the whole cleaning mechanism and the whole filter piece can be thoroughly cleaned.

Description

Technical Field

[0001] The invention belongs to the technical field of pulp wastewater treatment, in particular to a pulp and papermaking wastewater treatment and purification device. Background Art

[0002] A Chinese patent with publication number CN214270477U discloses a pulp and papermaking wastewater treatment and purification device, including a filter chamber, in which a stirring assembly is arranged, and the stirring assembly includes a stirring barrel. The filter plate is inclined to filter the floccules. The floccules on the inclined filter plate will move to the flat filter plate under the action of gravity and water flow impact force. The scraper plate is driven by a conveyor belt to scrape the floccules, so that the floccules are discharged from the filter chamber, thereby preventing the floccules from clogging the filter plate and improving the filtration efficiency. However, the device has defects when in use. When the water in the mixing barrel is discharged to the end of the filter chamber, the impact force of the water flow is small, so some flocs will adhere to the inclined filter plate and cannot be effectively cleaned. When these flocs lose water during drying, their morphology and properties may change. Specifically, if the flocs are mainly composed of substances that are easy to form chemical bonds or physical cross-links (such as natural cellulose containing hydroxyl groups, etc.), during the drying process, these substances may be cross-linked into a network through hydrogen bonds or other interaction forces, causing the dried flocs to become harder, which will cause the inclined filter plate to be blocked. If this happens every time, it will seriously affect the filtration of the inclined filter plate. Summary of the invention

[0003] The present invention aims to solve the technical problems existing in the prior art; to this end, the present invention proposes a pulp and papermaking wastewater treatment and purification device.

[0004] The purpose of the present invention can be achieved through the following technical solutions: A pulp and papermaking wastewater treatment and purification device comprises a filter chamber and a stirring barrel fixedly connected together in an upper and lower manner, a conveying pipe is arranged between the filter chamber and the stirring barrel, and further comprises: A filter element is arranged inside the filter chamber, and a cleaning mechanism is arranged between the filter element and the filter chamber, and the cleaning mechanism is used to clean the filter element.

[0005] The export mechanism is arranged inside the filter chamber and is used to export flocculants generated after sewage treatment.

[0006] As a further solution of the present invention: the filter element includes a mounting plate, the mounting plate is rotatably connected to the inside of the filter chamber via a rotating shaft, and a filter plate is arranged on the mounting plate.

[0007] As a further solution of the present invention: the cleaning mechanism includes a front baffle and a rear baffle fixedly connected to the mounting plate, and an inclined plate fixedly connected in the filter chamber, a first rotating rod and a second rotating rod are rotatably connected between the front baffle and the rear baffle, a scraper is connected to the first rotating rod and the second rotating rod through a transmission member, a cam is fixedly connected to the first rotating rod, a first motor is fixedly connected to the front baffle, and the first motor is fixedly connected to the first rotating rod.

[0008] As a further solution of the present invention: the transmission member includes a first pulley fixedly connected to the first rotating rod, and a second pulley fixedly connected to the second rotating rod, the first pulley and the second pulley are connected by belt transmission, two of the first pulley and the second pulley are each provided, and connecting plates are fixedly connected to the two belts, and the connecting plates are fixedly connected to the scraper.

[0009] As a further solution of the present invention: a protective plate is rotatably connected between the first pulley and the second pulley, two protective plates are provided, and the protective plates are rotatably connected to the first rotating rod and the second rotating rod.

[0010] As a further solution of the present invention: the filter element is arranged at an angle, a partition is fixedly connected to the top of the mounting plate, one side of the partition is flush with one side of the filter plate, two partitions are arranged, and a first buffer pad is fixedly connected to the top of the mounting plate.

[0011] As a further solution of the present invention: a fixing frame is fixedly connected to the inside of the filter chamber, and a spring is fixedly connected to the fixing frame.

[0012] As a further solution of the present invention: the export mechanism includes a conveying plate fixedly connected to the inside of the filter chamber, the conveying plate is arranged at an angle, and the conveying plate is located below the mounting plate, the top of the conveying plate is fixedly connected to a vertical plate, the front side of the vertical plate is provided with a through groove, the conveying plate is connected to a push plate through a moving mechanism, and two vertical plates are provided.

[0013] As a further solution of the present invention: the moving mechanism includes a second motor fixedly connected to the conveying plate, the output end of the second motor is fixedly connected to a screw rod, the screw rod is fixedly connected to a connecting block, the connecting block is fixedly connected to the push plate, and the connecting block is slidably connected to the through slot.

[0014] As a further solution of the present invention: a bent rod is fixedly connected to the bottom of the mounting plate, a second buffer pad is fixedly connected to the bottom of the conveying plate, and a discharge port is opened on one side of the filter chamber.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) The present application uses a belt to drive a scraper to move at the end of the sewage filtration by using a filter plate, and uses the scraper to clean the flocs remaining on the filter plate. At the same time, during the movement of the scraper, the cam drives the cleaning mechanism as a whole to rotate within a certain angle, and causes the mounting plate and the inclined plate to collide and vibrate, which is conducive to vibrating the flocs in the filter plate and shaking the flocs on the scraper off, thereby achieving thorough cleaning of the flocs on the cleaning mechanism as a whole and the filter element as a whole; (2) The present application uses a fixing frame and a spring in combination. When the filter element and the cleaning mechanism fall under the action of gravity, the spring can be used to buffer the filter element and the cleaning mechanism. At the moment when the filter element and the cleaning mechanism fall, the spring can be used to apply a vibration effect to the filter element and the cleaning mechanism, which is beneficial to cleaning the flocculants on the filter element and the cleaning mechanism. (3) The present application sets a bending rod, which can drive the bending rod to vibrate the conveying plate during the process of cleaning the flocculants remaining on the filter plate, so that the flocculants remaining on the conveying plate are loosened, which is conducive to the flocculants sliding down and being discharged. At the same time, when used in conjunction with the moving mechanism, the flocculants remaining on the conveying plate can be effectively discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective view of the present invention; Figure 2 is a three-dimensional cross-sectional view of the present invention; Figure 3 A three-dimensional diagram of the cleaning mechanism and the exporting mechanism of the present invention; Figure 4 A three-dimensional diagram of the cleaning mechanism of the present invention; Figure 5 A three-dimensional diagram of the derivation mechanism of the present invention; Figure 6 It is a disassembled diagram of the cleaning mechanism of the present invention.

[0017] In the figure: 1, filter chamber; 2, mixing barrel; 3, conveying pipe; 4, filter element; 41, mounting plate; 42, rotating shaft; 43, filter plate; 5, cleaning mechanism; 51, front baffle; 52, rear baffle; 53, inclined plate; 54, first rotating rod; 55, second rotating rod; 56, transmission member; 561, first pulley; 562, second pulley; 563, belt; 564, connecting plate; 57, scraper; 58, cam; 59, first motor; 6, export mechanism; 61, conveying plate; 62, vertical plate; 63, through groove; 64, moving mechanism; 641, second motor; 642, screw rod; 643, connecting block; 65, push plate; 7, protective plate; 8, partition; 9, first buffer pad; 10, fixed frame; 11, spring; 12, bending rod; 13, second buffer pad; 14, discharge port. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than 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.

[0019] Embodiment 1

[0020] See also Figure 1-Figure 4 and Figure 6 As shown, the present application provides a pulp and papermaking wastewater treatment and purification device, comprising a filter chamber 1 and a stirring barrel 2 fixedly connected together in an upper and lower manner, a drain pipe is arranged on the filter chamber 1, and a delivery pipe 3 is arranged between the filter chamber 1 and the stirring barrel 2. By passing flocculant and sewage into the stirring barrel 2, the flocculant and sewage are stirred and mixed, and then floccules are generated and precipitated, and then the floccules and purified water are discharged into the filter chamber 1 by using the delivery pipe 3, and further comprising: A filter element 4 is arranged inside the filter chamber 1, and a cleaning mechanism 5 is arranged between the filter element 4 and the filter chamber 1, and the cleaning mechanism 5 is used to clean the filter element 4; The outlet mechanism 6 is arranged inside the filter chamber 1, and is used for outleting flocculants generated after sewage treatment.

[0021] The filter element 4 includes a mounting plate 41, which is rotatably connected to the inside of the filter chamber 1 through a rotating shaft 42, and a filter plate 43 is arranged on the mounting plate 41. The flocculants and the purified water both fall on the filter plate 43, and the filter plate 43 is used to block the flocculants, so that the purified water passes through the filter plate 43, and under the impact, the flocculants slide along the filter element 4, and then the flocculants fall on the conveying plate 61 and slide down (part of the flocculants will remain on the conveying plate 61), and finally discharged from the discharge port 14.

[0022] The cleaning mechanism 5 includes a front baffle 51 and a rear baffle 52 fixedly connected to the mounting plate 41, and an inclined plate 53 fixedly connected to the filter chamber 1, a first rotating rod 54 and a second rotating rod 55 are rotatably connected between the front baffle 51 and the rear baffle 52, a scraper 57 is connected to the first rotating rod 54 and the second rotating rod 55 through a transmission member 56, a cam 58 is fixedly connected to the first rotating rod 54, a first motor 59 is fixedly connected to the front baffle 51, the first motor 59 is electrically connected to an external power supply and is controlled by an external control program, and the first motor 59 is fixedly connected to the first rotating rod 54.

[0023] The transmission member 56 includes a first pulley 561 fixedly connected to the first rotating rod 54, and a second pulley 562 fixedly connected to the second rotating rod 55. The first pulley 561 and the second pulley 562 are connected to each other through a belt 563. There are two of the first pulley 561 and the second pulley 562. A connecting plate 564 is fixedly connected to the two belts 563, and the connecting plate 564 is fixedly connected to the scraper 57.

[0024] A protective plate 7 is rotatably connected between the first pulley 561 and the second pulley 562. Two protective plates 7 are provided. The protective plates 7 are rotatably connected to the first rotating rod 54 and the second rotating rod 55. One side of the two protective plates 7 close to the front baffle 51 and the rear baffle 52 is flush with one side of the partition 8. By providing the protective plates 7, the inner side of the belt 563 can be shielded by the protective plates 7 to prevent flocs from falling on the inner side of the belt 563 and affecting the transmission of the belt 563.

[0025] The filter element 4 is arranged at an angle, and a partition plate 8 is fixedly connected to the top of the mounting plate 41. One side of the partition plate 8 is flush with one side of the filter plate 43. Two partition plates 8 are provided. A first buffer pad 9 is fixedly connected to the top of the mounting plate 41. The first buffer pad 9 plays a buffering role. By arranging the partition plate 8, it is ensured that water can pass through the filter plate 43 normally. At the end of the mixing barrel 2 draining water into the filter chamber 1, due to the insufficient impact force of the water, flocculants will remain on the filter plate 43. At this time, the first motor 59 is turned on, and then the first motor 59 drives the first rotating rod 54 to rotate, thereby driving the first pulley 561 and the cam 58 to rotate, thereby driving the belt 563 to transmit, and then driving the scraper 57 to move through the connecting plate 564, so that the scraper 57 can be used to clean the flocculants on the filter plate 43, thereby driving the flocculants to slide down and fall onto the conveying plate 61, and when the cam 58 rotates, it will drive the mounting plate 41 to rotate a certain angle, and make the mounting plate 41 collide with the inclined plate 53, thereby generating vibration, and then utilizing the vibration effect to facilitate vibrating out the flocculants in the filter plate 43, and shaking off the flocculants on the scraper 57, so as to achieve thorough cleaning of the flocculants on the cleaning mechanism 5 as a whole and the filter element 4 as a whole.

[0026] Embodiment 2

[0027] Based on Example 1, see Figure 2 and Figure 3 shown.

[0028] A fixing frame 10 is fixedly connected inside the filter chamber 1, and a spring 11 is fixedly connected to the fixing frame 10. The spring 11 fits the mounting plate 41, and the spring 11 supports the mounting plate 41. When the filter element 4 and the cleaning mechanism 5 as a whole fall under the action of gravity, the spring 11 can be used to buffer the filter element 4 and the cleaning mechanism 5 as a whole, and at the moment when the filter element 4 and the cleaning mechanism 5 as a whole fall, the spring 11 can be used to apply a vibration effect to the filter element 4 and the cleaning mechanism 5 as a whole, which is conducive to cleaning the flocculants on the filter element 4 and the cleaning mechanism 5 as a whole.

[0029] Embodiment 3

[0030] Based on Example 1, see Figure 2 , Figure 3 and Figure 5 shown.

[0031] The export mechanism 6 includes a conveying plate 61 fixedly connected to the inside of the filter chamber 1, the conveying plate 61 is inclined, and the conveying plate 61 is located below the mounting plate 41, a vertical plate 62 is fixedly connected to the top of the conveying plate 61, a through groove 63 is penetrated through the front of the vertical plate 62, and a push plate 65 is connected to the conveying plate 61 through a moving mechanism 64, and two vertical plates 62 are provided.

[0032] The moving mechanism 64 includes a second motor 641 fixedly connected to the conveying plate 61, the second motor 641 is a three-phase asynchronous motor, the second motor 641 is electrically connected to an external power supply, and is controlled by an external control program, the output end of the second motor 641 is fixedly connected to a screw rod 642, the screw rod 642 is fixedly connected to a connecting block 643, the connecting block 643 is fixedly connected to the push plate 65, and the connecting block 643 is slidably connected to the through slot 63.

[0033] The bottom of the mounting plate 41 is fixedly connected with a bent rod 12, and the bottom of the conveying plate 61 is fixedly connected with a second buffer pad 13, which plays a buffering role. A discharge port 14 is provided on one side of the filter chamber 1. In the process of cleaning the floccules remaining on the filter plate 43, the bent rod 12 can be driven to vibrate the conveying plate 61, so that the floccules remaining on the conveying plate 61 are loosened, which is conducive to the floccules sliding off and being discharged. At the same time, in conjunction with the moving mechanism 64, the second motor 641 is used to drive the screw rod 642 to rotate, thereby driving the connecting block 643 to move, and then driving the push plate 65 to move, and the push plate 65 is used to push the floccules remaining on the conveying plate 61, so that the floccules remaining on the conveying plate 61 can be effectively discharged.

[0034] Embodiment 4

[0035] In combination with Embodiment 1, Embodiment 2 and Embodiment 3, see Figure 1-Figure 6 shown.

[0036] At the end of sewage filtration by the filter plate 43, the belt 563 is used to drive the scraper 57 to move, and the scraper 57 is used to clean the flocculants remaining on the filter plate 43. At the same time, during the movement of the scraper 57, the cam 58 drives the cleaning mechanism 5 as a whole to rotate within a certain angle, and causes the mounting plate 41 to collide with the inclined plate 53 to generate vibration, which is beneficial to vibrate the flocculants in the filter plate 43 and shake the flocculants on the scraper 57 off, so as to achieve thorough cleaning of the flocculants on the cleaning mechanism 5 as a whole and the filter element 4 as a whole.

[0037] The working principle of the present invention is as follows: by introducing flocculant and sewage into a stirring barrel 2, the flocculant and sewage are stirred and mixed, and then floccules are generated and precipitated, and then the floccules and purified water are discharged into the filter chamber 1 through a conveying pipe 3.

[0038] Afterwards, the floccules and the purified water both fall onto the filter plate 43, and the filter plate 43 is used to block the floccules, so that the purified water passes through the filter plate 43, and under the impact, the floccules slide along the filter element 4, and then the floccules fall on the conveying plate 61 and slide down (part of the floccules will remain on the conveying plate 61), and are finally discharged from the discharge port 14.

[0039] At the end of the mixing barrel 2 draining water into the filter chamber 1, due to the insufficient impact force of the water, flocculants will remain on the filter plate 43. At this time, the first motor 59 is turned on, and then the first motor 59 drives the first rotating rod 54 to rotate, thereby driving the first pulley 561 and the cam 58 to rotate, thereby driving the belt 563 to transmit, and then driving the scraper 57 to move through the connecting plate 564, so that the scraper 57 can be used to clean the flocculants on the filter plate 43, thereby driving the flocculants to slide down and fall onto the conveying plate 61, and when the cam 58 rotates, it will drive the mounting plate 41 to rotate a certain angle, and make the mounting plate 41 collide with the inclined plate 53, thereby generating vibration, and then utilizing the vibration effect to facilitate vibrating out the flocculants in the filter plate 43, and shaking off the flocculants on the scraper 57, so as to achieve thorough cleaning of the flocculants on the cleaning mechanism 5 as a whole and the filter element 4 as a whole.

[0040] Afterwards, when the filter element 4 as a whole and the cleaning mechanism 5 as a whole fall under the action of gravity, the spring 11 can be used to cushion the filter element 4 as a whole and the cleaning mechanism 5 as a whole, and at the moment the filter element 4 as a whole and the cleaning mechanism 5 as a whole fall, the spring 11 can be used to apply a vibration effect to the filter element 4 as a whole and the cleaning mechanism 5 as a whole, which is beneficial to cleaning the flocs on the filter element 4 as a whole and the cleaning mechanism 5 as a whole.

[0041] In the process of cleaning the flocculants remaining on the filter plate 43, the bent rod 12 can be driven to vibrate the conveying plate 61, so that the flocculants remaining on the conveying plate 61 are loosened, which is conducive to the flocculants sliding off and being discharged. At the same time, in conjunction with the moving mechanism 64, the second motor 641 is used to drive the screw rod 642 to rotate, thereby driving the connecting block 643 to move, and then driving the push plate 65 to move. The push plate 65 is used to push the flocculants remaining on the conveying plate 61, so that the flocculants remaining on the conveying plate 61 can be effectively discharged.

[0042] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A pulp and papermaking wastewater treatment and purification device, comprising a filter chamber (1) and a stirring barrel (2) fixedly connected together in an upper and lower manner, a conveying pipe (3) is arranged between the filter chamber (1) and the stirring barrel (2), characterized in that: Also includes: A filter element (4) is arranged inside the filter chamber (1), a cleaning mechanism (5) is arranged between the filter element (4) and the filter chamber (1), and the cleaning mechanism (5) is used to clean the filter element (4); An outlet mechanism (6) is arranged inside the filter chamber (1), and the outlet mechanism (6) is used to outlet flocculants generated after sewage treatment; The filter element (4) comprises a mounting plate (41), the mounting plate (41) being rotatably connected to the inside of the filter chamber (1) via a rotating shaft (42), and a filter plate (43) being arranged on the mounting plate (41); The cleaning mechanism (5) comprises a front baffle (51) and a rear baffle (52) fixedly connected to the mounting plate (41), and an inclined plate (53) fixedly connected to the filter chamber (1); a first rotating rod (54) and a second rotating rod (55) are rotatably connected between the front baffle (51) and the rear baffle (52); a scraper (57) is connected to the first rotating rod (54) and the second rotating rod (55) via a transmission member (56); a cam (58) is fixedly connected to the first rotating rod (54); a first motor (59) is fixedly connected to the front baffle (51); and the first motor (59) is fixedly connected to the first rotating rod (54).

2. A pulp and papermaking wastewater treatment and purification device according to claim 1, characterized in that: The transmission member (56) comprises a first pulley (561) fixedly connected to the first rotating rod (54), and a second pulley (562) fixedly connected to the second rotating rod (55); the first pulley (561) and the second pulley (562) are connected to each other via a belt (563); two first pulleys (561) and two second pulleys (562) are provided; connecting plates (564) are fixedly connected to the two belts (563); and the connecting plates (564) are fixedly connected to the scraper (57).

3. A pulp and papermaking wastewater treatment and purification device according to claim 2, characterized in that: A protective plate (7) is rotatably connected between the first belt pulley (561) and the second belt pulley (562), two protective plates (7) are provided, and the protective plates (7) are rotatably connected to the first rotating rod (54) and the second rotating rod (55).

4. A pulp and papermaking wastewater treatment and purification device according to claim 1, characterized in that: The filter element (4) is arranged at an angle, a partition plate (8) is fixedly connected to the top of the mounting plate (41), one side of the partition plate (8) is flush with one side of the filter plate (43), two partition plates (8) are provided, and a first buffer pad (9) is fixedly connected to the top of the mounting plate (41).

5. The pulp and papermaking wastewater treatment and purification device according to claim 1, characterized in that: A fixing frame (10) is fixedly connected to the interior of the filter chamber (1), and a spring (11) is fixedly connected to the fixing frame (10).

6. The pulp and papermaking wastewater treatment and purification device according to claim 1, characterized in that: The outlet mechanism (6) comprises a conveying plate (61) fixedly connected to the inside of the filter chamber (1); the conveying plate (61) is arranged in an inclined manner and is located below the mounting plate (41); a vertical plate (62) is fixedly connected to the top of the conveying plate (61); a through slot (63) is provided through the front of the vertical plate (62); a push plate (65) is connected to the conveying plate (61) via a moving mechanism (64); and two vertical plates (62) are provided.

7. A pulp and papermaking wastewater treatment and purification device according to claim 6, characterized in that: The moving mechanism (64) comprises a second motor (641) fixedly connected to the conveying plate (61); a lead screw (642) is fixedly connected to the output end of the second motor (641); a connecting block (643) is fixedly connected to the lead screw (642); the connecting block (643) is fixedly connected to the push plate (65); and the connecting block (643) is slidably connected to the through slot (63).

8. The pulp and papermaking wastewater treatment and purification device according to claim 6, characterized in that: A bent rod (12) is fixedly connected to the bottom of the mounting plate (41), a second buffer pad (13) is fixedly connected to the bottom of the conveying plate (61), and a discharge port (14) is provided on one side of the filter chamber (1).

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