Sludge drying equipment for wastewater treatment

Abstract

The embodiment of the utility model provides sludge drying equipment for wastewater treatment, and relates to the technical field of wastewater treatment equipment. The sludge drying equipment for wastewater treatment comprises a screw feeder, a drying box and a pneumatic conveyor, the right end of the screw feeder penetrates into an inner cavity of the drying box, the pneumatic conveyor is matched with the drying box, a drying assembly is arranged on the outer surface of the drying box, a mixing assembly is arranged in the inner cavity of the drying box, and the mixing assembly is matched with the drying box. Through cooperative use of the drying assembly and the mixing assembly, the effect of scattering sludge is achieved, so that the effect of uniformly drying the sludge can be achieved, and under long-time use, the effect of cleaning a filter screen plate used for intercepting the sputtering drying device and the effect of jointly cleaning the surface of a scraped plate can be achieved; therefore, the situation that the filter screen plate is blocked by sludge after being used for a long time is avoided, the working efficiency of sludge drying is improved, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment equipment, in particular to a wastewater treatment sludge drying device. Background Art

[0002] Sludge drying equipment is a technical equipment specially used to reduce the moisture content of sludge. It aims to convert the large amount of wet sludge generated in the sewage treatment process into dried sludge that is easy to store, transport and finally dispose of. Drying can significantly reduce the volume and weight of sludge, which is convenient for subsequent resource utilization or harmless treatment. Sludge drying equipment has different classifications according to working principle, heat source type, structural form and feeding method.

[0003] However, after the existing sludge filter press equipment filters the sludge, although the water content of the sludge drops to a certain level, it is still stored in a wet state. As a result, when the sludge is subsequently treated, because it contains a certain amount of water, long-term accumulation is prone to gradually cause bacteria and other microorganisms to grow inside the sludge, which in turn causes the subsequent treatment of the sludge to fail to meet the sludge treatment standards, and requires the user to recycle the sludge for drying treatment, which is time-consuming and labor-intensive, increases the user's workload, and is inconvenient to use. Therefore, we propose a wastewater treatment sludge drying equipment with easy-to-use functions, which is urgently needed to be developed. Utility Model Content

[0004] The utility model aims to provide a sludge drying device for wastewater treatment, which can avoid the problem that after the existing sludge filter press equipment performs sludge filter press, the sludge water content is reduced to a certain level, but it is still stored in a wet state, resulting in the subsequent sludge treatment. Because it contains a certain amount of water, long-term accumulation is likely to gradually cause bacteria and other microorganisms to grow inside the sludge, which in turn leads to the subsequent treatment of the sludge, making the sludge treatment fail to meet the sludge treatment standards, and requiring the user to recycle the sludge for drying treatment, which is time-consuming and labor-intensive, and increases the user's workload.

[0005] The utility model provides a wastewater treatment sludge drying device, comprising a screw feeder, a drying box and a pneumatic conveyor, wherein the right end of the screw feeder penetrates into the inner cavity of the drying box, the pneumatic conveyor cooperates with the drying box, a drying component is arranged on the outer surface of the drying box, and a mixing component is arranged in the inner cavity of the drying box.

[0006] In a specific embodiment, the drying component includes an air duct connected to a drying box, filter screens are embedded on both sides of the top of the drying box, drying devices are connected to both sides of the top of the drying box, and the filter screens and the drying device are located in the inner cavity of the air duct.

[0007] In a specific embodiment, the mixing assembly includes a protective box, the outer surface of which is connected to a drying box, a rotating rod is provided through both the front and rear sides of the inner cavity of the drying box, and one end of the rotating rod is connected to a sprocket.

[0008] In a specific embodiment, one end of the rotating rod away from the sprocket passes through the inner cavity of the protection box and is rotatably connected to the protection box, and the surfaces of several sprockets are transmission-connected with chains.

[0009] In a specific embodiment, a plurality of scrapers are connected to the surface of the chain, a sealing belt is rotatably connected to the inner cavity of the drying box, one end of the scraper away from the chain penetrates to the outside of the sealing belt, and the scraper is in contact with the inner cavity of the drying box, the outer surface of the protective box is connected to a fixed box, and the inner cavity of the fixed box is bolted to a motor.

[0010] In a specific embodiment, the output shaft of the motor passes through the inner cavity of the protective box and is connected to the rotating rod. The inner cavity of the protective box is rotatably connected to a connecting rod, and the surfaces of the connecting rod and the rotating rod are respectively connected to two meshing gears.

[0011] In a specific embodiment, the inner cavity of the protection box is rotatably connected to a long rod, the bottom end of the long rod and one end of the connecting rod are respectively connected to two meshing first bevel gears, and the inner cavity of the protection box is rotatably connected to a threaded rod.

[0012] In a specific embodiment, the surface of the threaded rod and the top of the long rod are respectively connected to two meshing second bevel gears, the surface of the threaded rod is threadedly connected to two symmetrically arranged threaded plates, the front and rear sides of the drying box are connected to a connecting box, the inner cavity of the connecting box is connected to a first scraper, the front and rear sides of the drying box are penetrated by a second scraper, and one side of the second scraper penetrates to the outside of the connecting box.

[0013] In a specific embodiment, the first scraper is in contact with the second scraper, the inner cavity of the second scraper is connected to a plurality of pipes, the front end of the pipe is connected to a first rubber hose, and the first rubber hose passes through the outside of the second scraper, and the first rubber hose is used in conjunction with the scraper.

[0014] In a specific embodiment, the outer surface of the pipeline is connected to a second rubber hose, and the second rubber hose penetrates to the outside of the drying box.

[0015] The beneficial effects of the present application are as follows: through the coordinated use of the drying component and the mixing component, the sludge can be broken up, thereby evenly drying the sludge, and after long-term use, the filter screen used to intercept the sputtering drying device can be cleaned and the scraped surface can be cleaned together, thereby avoiding the filter screen from being clogged with sludge after long-term use, improving the efficiency of sludge drying, and reducing the energy consumption of the drying fan during drying, and while cleaning the filter screen, the sludge on the scraper surface is also washed, which provides cleanliness of the scraper, facilitates use, and reduces the workload of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional schematic diagram of the overall structure of an embodiment of the utility model;

[0018] Figure 2 It is a bottom-up stereoscopic schematic diagram of the overall structure of an embodiment of the utility model;

[0019] Figure 3 It is a three-dimensional schematic diagram of the side cross-sectional structure of the air duct of an embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the side cross-sectional structure of a drying box according to an embodiment of the utility model;

[0021] Figure 5 A three-dimensional schematic diagram of the scraper structure of an embodiment of the utility model;

[0022] Figure 6 It is a three-dimensional schematic diagram of the side cross-sectional structure of the scraper of an embodiment of the utility model;

[0023] Figure 7 This is a three-dimensional schematic diagram of the second rubber hose structure of an embodiment of the utility model;

[0024] Figure 8 It is a three-dimensional schematic diagram of the structure of the second bevel gear member in an embodiment of the utility model;

[0025] Fig. 9 This is a three-dimensional schematic diagram of the filter screen structure of an embodiment of the utility model;

[0026] Fig.10 For the utility model embodiment Fig. 9 A schematic diagram of the enlarged structure in the middle.

[0027] Icons: 1. Screw feeder; 2. Drying box; 3. Pneumatic conveyor; 4. Drying assembly; 41. Air duct; 42. Drying device; 43. Filter plate; 5. Mixing assembly; 51. Protective box; 52. Rotating rod; 53. Sprocket; 54. Chain; 55. Scraper; 56. Fixed box; 57. Motor; 58. First scraper; 59. Connecting rod; 510. Gear; 511. Long rod; 512. First bevel gear; 513. Threaded rod; 514. Second bevel gear; 515. Threaded plate; 516. Second scraper; 517. Pipeline; 518. First rubber hose; 519. Second rubber hose; 520. Connecting box; 521. Sealing belt. DETAILED DESCRIPTION

[0028] After the existing sludge filter press equipment filters the sludge, although the water content of the sludge drops to a certain level, it is still stored in a wet state. As a result, when the sludge is subsequently treated, because it contains a certain amount of water, long-term accumulation is likely to gradually cause bacteria and other microorganisms to grow inside the sludge, which in turn causes the subsequent treatment of the sludge to fail to meet the sludge treatment standards and requires the user to recycle the sludge for drying treatment, which is time-consuming and labor-intensive, increases the user's workload, and is inconvenient to use. Therefore, the inventor has provided a wastewater treatment sludge drying equipment after research. Through the coordinated use of a drying component and a mixing component, the sludge can be broken up, so that the sludge can be dried evenly. After long-term use, the filter screen used to intercept the sputtering drying device can be cleaned and the scraped surface can be cleaned together, thereby avoiding the filter screen from being clogged by sludge after long-term use, improving the work efficiency of sludge drying, and reducing the energy consumption of the drying fan during drying. While cleaning the filter screen, the sludge on the scraper surface is also flushed, which provides cleanliness of the scraper, facilitates use, and reduces the workload of the user.

[0029] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0030] Please refer to Figures 1 to 10 The embodiment of the utility model provides a wastewater treatment sludge drying device, including a screw feeder 1, a drying box 2 and a pneumatic conveyor 3, the right end of the screw feeder 1 penetrates into the inner cavity of the drying box 2, the pneumatic conveyor 3 cooperates with the drying box 2, wherein the feed end of the pneumatic conveyor 3 is connected with a pipeline, and the pipeline penetrates to the bottom of the inner cavity of the drying box 2, and then the discharge end of the pneumatic conveyor 3 is connected with a discharge pipeline and is connected with the next processing equipment, so as to transport the dried sludge;

[0031] Please refer to Figures 2 to 10 The outer surface of the drying box 2 is provided with a drying assembly 4, and the drying assembly 4 includes an air duct 41 connected to the drying box 2. Filter screens 43 are embedded and installed on both sides of the top of the drying box 2. Drying devices 42 are connected to both sides of the top of the drying box 2, and the filter screens 43 and the drying device 42 are located in the inner cavity of the air duct 41, wherein the end of the air duct 41 away from the drying device 42 can be connected to a filtering device or an air purification device, so as to filter and discharge the gas discharged from the air duct 41, thereby improving the protection of the surrounding environment, and the user of the drying device 42 can connect the wires to it in advance to provide electricity;

[0032] Specifically, when the sludge enters the drying box 2, the drying device 42 can be started to dry the inside of the drying box 2, so as to increase the temperature inside the drying box 2, and then cooperate with the mixing component 5 to evenly dry the sludge;

[0033] Please refer to Figures 3 to 10 The inner cavity of the drying box 2 is provided with a mixing component 5, and the mixing component 5 includes a protective box 51. The outer surface of the protective box 51 is connected to the drying box 2. The front and rear sides of the inner cavity of the drying box 2 are penetrated by a rotating rod 52, and one end of the rotating rod 52 is connected to a sprocket 53. The end of the rotating rod 52 away from the sprocket 53 penetrates into the inner cavity of the protective box 51 and is rotatably connected to the protective box 51. The surfaces of several sprockets 53 are transmission-connected with chains 54, wherein the area where the rotating rod 52 penetrates and contacts the drying box 2 is sealed, and the surface of the chain 54 is connected with several scrapers 55. The inner cavity of the drying box 2 is rotatably connected with a sealing belt 521, and the end of the scraper 55 away from the chain 54 penetrates to the outer side of the sealing belt 521. The inner cavity of the sealing belt 521 is inlaid with a plurality of flexible sleeves, and the flexible sleeves are sealed, and the flexible sleeves are sleeved on the surface of the scraper 55, so that the sealing belt 521 can be used to prevent external sludge from clogging the chain 54, and the scraper 55 is in contact with the inner cavity of the drying box 2, wherein the surface of the scraper 55 is also in contact with the filter screen 43, the outer surface of the protective box 51 is connected to the fixed box 56, the inner cavity of the fixed box 56 is bolted to the motor 57, the output shaft of the motor 57 passes through the inner cavity of the protective box 51 and is connected to the rotating rod 52, the inner cavity of the protective box 51 is rotatably connected to the connecting rod 59, and the surfaces of the connecting rod 59 and the rotating rod 52 are respectively connected to two meshing gears 510;

[0034] Please refer to Figures 1 to 10The inner cavity of the protection box 51 is rotatably connected with a long rod 511, and the bottom end of the long rod 511 and one end of the connecting rod 59 are respectively connected with two meshing first bevel gears 512, and the inner cavity of the protection box 51 is rotatably connected with a threaded rod 513, wherein the protection box 51 is U-shaped, and the surface of the threaded rod 513 is provided with two opposite threads, and the surface of the threaded rod 513 and the top of the long rod 511 are respectively connected with two meshing second bevel gears 514, and the surface of the threaded rod 513 is threadedly connected with two symmetrically arranged threaded plates 515, wherein the threaded plate 515 is provided with an internal thread matched with the threaded rod 513, and the protection box 51 is provided with a through cavity matched with the threaded plate 515, and the front and rear sides of the drying box 2 are connected with a connecting box 520, and the inner cavity of the connecting box 520 is connected with the second A scraper 58, a second scraper 516 is provided on both the front and rear sides of the drying box 2, and one side of the second scraper 516 penetrates to the outside of the connection box 520, the first scraper 58 contacts the second scraper 516, and a box door is hinged on the top of the connection box 520, the inner cavity of the second scraper 516 is connected to a plurality of pipes 517, the front end of the pipe 517 is connected to a first rubber hose 518, and the first rubber hose 518 penetrates to the outside of the second scraper 516, the first rubber hose 518 is used in conjunction with the scraper 55, the outer surface of the pipe 517 is connected to a second rubber hose 519, and the second rubber hose 519 penetrates to the outside of the drying box 2, wherein the other end of the second rubber hose 519 is connected to a cleaning liquid device such as a water supply tank that can clean the sludge on the surface of the scraper 55;

[0035] Specifically, when the sludge enters the drying box 2, the motor 57 can be started, the motor 57 drives the rotating rod 52 to rotate, and the rotating rod 52 drives the sprocket 53 and the gear 510 to rotate together, wherein the sprocket 53 drives the chain 54 to make a circular motion, and the chain 54 drives the scraper 55 to move synchronously, and the scraper 55 uses the circular motion to mix the sludge differently, so as to achieve the situation where the drying device 42 is used to irradiate different areas of the sludge, and the water in the sludge can be quickly evaporated, and the sprocket 53 and the chain 54 are treated with anti-corrosion, and then the scraper 55 releases and scrapes off the attached sludge on the surface of the filter plate 43 and the top and bottom of the drying box 2 during the circular process, so as to achieve the purpose of cleaning, at this time, the gear 510 meshes and rotates to drive the connecting rod 59 to rotate, and the connecting rod 59 drives the long rod 511 to rotate, and the long rod 51 1 drives the second bevel gear 514 to mesh and rotate, and the second bevel gear 514 drives the threaded rod 513 to rotate. The threaded rod 513 uses the principle of thread transmission to push the two threaded plates 515 to move in opposite or opposite directions, and then the threaded plate 515 drives the second scraper 516 to move synchronously, wherein the second scraper 516 can scrape the inner cavity of the drying box 2 during the movement, so as to scrape the area that the scraper 55 cannot touch, and the first scraper 58 can be used to scrape the sludge on its surface during the movement of the second scraper 516, and the first scraper 58 is set in an L shape. When the scraper 55 needs to be cleaned, the second rubber hose 519 can be used to transmit the liquid for cleaning the sludge to spray, and spray the surface of the scraper 55, and the second scraper 516 is used to reciprocate for uniform spraying, so as to achieve a cleaning effect and facilitate use.

[0036] In summary, the working principle of a wastewater treatment sludge drying equipment in an embodiment of the utility model is as follows: when the user pours the sludge treated by the sludge filter press into the screw feeder 1, it should be noted that the sludge is the sludge that is still in a moist state after filtration, and is fed to the drying box 2 through the screw feeder 1, and the drying component 4 can be started during transportation, the drying component 4 performs uniform mixing and drying on the sludge at the same time, and when a large amount of sludge is attached to the mixed parts and the filter screen plate 43 splashed during drying, the drying component 4 can be started to scrape the attached sludge and spray the liquid for removing the sludge, thereby achieving the purpose of cleaning, thereby improving the work efficiency during drying and facilitating use.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wastewater treatment sludge drying device, comprising a screw feeder (1), a drying box (2) and a pneumatic conveyor (3), characterized in that: The right end of the screw feeder (1) passes through the inner cavity of the drying box (2), the pneumatic conveyor (3) cooperates with the drying box (2), the outer surface of the drying box (2) is provided with a drying component (4), and the inner cavity of the drying box (2) is provided with a mixing component (5).

2. A wastewater treatment sludge drying equipment according to claim 1, characterized in that: The drying assembly (4) comprises an air duct (41) connected to the drying box (2), filter screens (43) are embedded and installed on both sides of the top of the drying box (2), and drying devices (42) are connected to both sides of the top of the drying box (2), and the filter screens (43) and the drying devices (42) are located in the inner cavity of the air duct (41).

3. A wastewater treatment sludge drying equipment according to claim 1, characterized in that: The mixing assembly (5) comprises a protection box (51), the outer surface of which is connected to the drying box (2), a rotating rod (52) is provided through both the front and rear sides of the inner cavity of the drying box (2), and one end of the rotating rod (52) is connected to a sprocket (53).

4. A wastewater treatment sludge drying equipment according to claim 3, characterized in that: One end of the rotating rod (52) away from the sprocket (53) penetrates into the inner cavity of the protection box (51) and is rotationally connected to the protection box (51). The surfaces of the plurality of sprockets (53) are transmission-connected with chains (54).

5. A wastewater treatment sludge drying equipment according to claim 4, characterized in that: The surface of the chain (54) is connected to a plurality of scrapers (55); the inner cavity of the drying box (2) is rotatably connected to a sealing belt (521); one end of the scraper (55) away from the chain (54) penetrates to the outside of the sealing belt (521), and the scraper (55) is in contact with the inner cavity of the drying box (2); the outer surface of the protective box (51) is connected to a fixed box (56); the inner cavity of the fixed box (56) is bolted to a motor (57).

6. The wastewater treatment sludge drying equipment according to claim 5, characterized in that: The output shaft of the motor (57) passes through the inner cavity of the protection box (51) and is connected to the rotating rod (52). The inner cavity of the protection box (51) is rotatably connected to a connecting rod (59). The surfaces of the connecting rod (59) and the rotating rod (52) are respectively connected to two meshing gears (510).

7. The wastewater treatment sludge drying equipment according to claim 6, characterized in that: The inner cavity of the protection box (51) is rotatably connected to a long rod (511), the bottom end of the long rod (511) and one end of the connecting rod (59) are respectively connected to two meshing first bevel gears (512), and the inner cavity of the protection box (51) is rotatably connected to a threaded rod (513).

8. The wastewater treatment sludge drying equipment according to claim 7, characterized in that: The surface of the threaded rod (513) and the top end of the long rod (511) are respectively connected to two meshing second bevel gears (514); the surface of the threaded rod (513) is threadedly connected to two symmetrically arranged threaded plates (515); the front and rear sides of the drying box (2) are both connected to a connecting box (520); the inner cavity of the connecting box (520) is connected to a first scraper (58); the front and rear sides of the drying box (2) are both penetrated by a second scraper (516), and one side of the second scraper (516) penetrates to the outside of the connecting box (520).

9. The wastewater treatment sludge drying equipment according to claim 8, characterized in that: The first scraper (58) is in contact with the second scraper (516); the inner cavity of the second scraper (516) is connected to a plurality of pipes (517); the front end of the pipe (517) is connected to a first rubber hose (518); and the first rubber hose (518) passes through the outside of the second scraper (516); the first rubber hose (518) is used in conjunction with the scraper (55).

10. The wastewater treatment sludge drying equipment according to claim 9, characterized in that: The outer surface of the pipe (517) is connected to a second rubber hose (519), and the second rubber hose (519) passes through the outside of the drying box (2).

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