Pyrolysis stir-frying treatment device for sewage and sludge

Abstract

The utility model discloses a treatment device for pyrolyzing and stir-frying sewage sludge, which relates to the technical field of rotary furnaces and comprises a hot air shell, a rotary drum is rotatably mounted in an inner cavity of the hot air shell, a first gear is fixed on the outer wall of the rotary drum, and a driving motor is arranged on the outer wall of the first gear. The driving motor is used for enabling the straight gear to be meshed with the outer wall of the first gear, and the overturning mechanism is arranged on the hot air shell and the rotary drum and used for scraping sludge attached to an inner cavity of the rotary drum; the turnover mechanism comprises a transmission unit and a scraping unit. According to the sludge pyrolysis device disclosed by the utility model, the turnover mechanism is arranged, so that in the sludge pyrolysis process, when an external driving motor drives the rotary drum to rotate, the turnover plate is driven to rotate through the rotating rotary drum and the static first gear ring, so that the sludge adhered to the inner cavity of the rotary drum is scraped and further falls off from the inner cavity of the rotary drum; the contact with hot air is better, and the pyrolysis efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary furnaces, in particular to a device for thermal decomposition and frying of sewage sludge. Background Art

[0002] Sewage, especially industrial wastewater, contains a large amount of organic matter. After flocculation and sedimentation, the organic matter forms organic sludge with a high organic matter content. The organic sludge is filtered and then forms mud. After drying, the mud needs to be processed through pyrolysis and carbonization to obtain activated carbon.

[0003] In the prior art, sludge is generally pyrolyzed by a rotary kiln, and the rotary kiln is rotated by a driving motor to make the sludge in the inner cavity of the rotary kiln fall from a higher position to a lower position, thereby turning the sludge over and making the sludge fully contact with hot air to complete the pyrolysis of the sludge. In order to further increase the contact area between the sludge and the hot air and improve the pyrolysis efficiency, the utility model proposes a device for pyrolysis and frying of sewage sludge. Utility Model Content

[0004] The purpose of the utility model is to provide a device for pyrolysis and stir-frying of sewage sludge in order to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for pyrolysis and frying of sewage sludge, comprising a hot air shell, a rotating drum is rotatably installed in the inner cavity of the hot air shell, a first gear is fixed to the outer wall of the rotating drum, a driving motor is arranged at one end of the outer portion of the hot air shell, a spur gear meshing with the first gear is fixedly connected to the output end of the driving motor, and a flipping mechanism is arranged on the hot air shell and the rotating drum, and the flipping mechanism is used to scrape the sludge attached to the inner cavity of the rotating drum;

[0006] The flipping mechanism includes a transmission unit and a scraping unit;

[0007] The transmission unit is used to provide power for the rotation of the scraping unit;

[0008] The scraping unit rotates in the opposite direction to the rotating drum through the rotational force of the transmission unit, and scrapes the sludge attached to the rotating drum.

[0009] As a further solution of the utility model: the transmission unit includes a rotating ring, a second gear, a third gear, and a first gear ring;

[0010] The rotating ring is fixed to the inner cavity of the rotating drum through a mounting bracket, and the rotating ring is used to provide support for the rotation of the second gear;

[0011] The second gear is rotatably sleeved on the outer wall of the rotating ring, and the second gear is used to drive the flip plate to rotate;

[0012] The third gear is rotatably mounted on the outer wall of the drum and extends between the hot air housing and the drum, and the third gear is used to drive the second gear to rotate;

[0013] The first gear ring is fixed in the inner cavity of the hot air housing, and the inner wall of the first gear ring is meshed with the outer wall of the third gear.

[0014] As a further solution of the utility model: the scraping unit includes a flip plate, a fourth gear, and a second gear ring;

[0015] The flip plate is rotatably mounted on the outer wall of the rotating ring through a rotating rod, and the flip plate is used to scrape the sludge in the inner cavity of the rotating drum;

[0016] The fourth gear is fixed to one end of the rotating rod of the flip plate and is located in the inner cavity of the rotating ring, and the fourth gear is used to drive the flip plate to rotate;

[0017] The second gear ring is fixed on the inner side of the second gear, the second gear ring is meshed with the outer wall of the fourth gear, and the second gear ring is used for synchronously driving the fourth gear to rotate when the second gear rotates.

[0018] As a further solution of the utility model: the inner cavity of the rotating ring is formed with a rotating groove for the second gear to rotate, and the inner cavity of the rotating ring is formed with a movable groove for the fourth gear to rotate.

[0019] As a further solution of the utility model: there are multiple flip plates, and the multiple flip plates are evenly distributed on the outer wall of the rotating ring with the circle of the rotating ring as the center. The outer wall of the flip plate is toothed, and the teeth of the outer walls of adjacent flip plates are staggered with each other.

[0020] As a further solution of the utility model: a plurality of holes for the sludge to pass through are opened on the flip plate, so as to allow the sludge to pass through when the sludge is scraped.

[0021] As a further solution of the utility model: a hot air layer for the circumferential movement of the third gear is formed inside the hot air housing.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] By setting up a flipping mechanism, during the sludge pyrolysis process, when the external driving motor drives the drum to rotate, the rotating drum and the stationary first gear ring are used to drive the flipping plate to rotate, thereby scraping the sludge attached to the inner cavity of the drum, causing the sludge to further fall from the inner cavity of the drum, better contact with the hot air, and increase the pyrolysis efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 This is a cross-sectional view of the internal structure of the rotary kiln of the utility model;

[0026] Figure 3 It is a schematic diagram of the installation structure of the rotating ring of the utility model.

[0027] In the figure: 1. hot air casing; 2. rotating drum; 3. first gear; 4. driving motor; 5. turning mechanism; 501. rotating ring; 502. second gear; 503. third gear; 504. first gear ring; 505. turning plate; 506. fourth gear; 507. second gear ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-Figure 3 In the embodiment of the utility model, a device for pyrolysis and frying of sewage sludge comprises a hot air housing 1, a rotating drum 2 is rotatably mounted in the inner cavity of the hot air housing 1, a first gear 3 is fixed to the outer wall of the rotating drum 2, a driving motor 4 is arranged at one end of the outer portion of the hot air housing 1, a spur gear meshing with the first gear 3 is fixedly connected to the output end of the driving motor 4, and a turning mechanism 5 is arranged on the hot air housing 1 and the rotating drum 2, and the turning mechanism 5 is used to scrape the sludge attached to the inner cavity of the rotating drum 2;

[0030] The turning mechanism 5 includes a transmission unit and a scraping unit;

[0031] The transmission unit is used to provide power for the rotation of the scraping unit;

[0032] The scraping unit rotates in the opposite direction to the drum through the rotational force of the transmission unit, and scrapes the sludge attached to the drum 2;

[0033] The transmission unit includes a rotating ring 501, a second gear 502, a third gear 503, and a first gear ring 504;

[0034] The rotating ring 501 is fixed to the inner cavity of the rotating drum 2 through a mounting bracket, and the rotating ring 501 is used to provide support for the rotation of the second gear 502;

[0035] The second gear 502 is rotatably sleeved on the outer wall of the rotating ring 501, and the second gear 502 is used to drive the flip plate 505 to rotate;

[0036] The third gear 503 is rotatably mounted on the outer wall of the drum 2 and extends between the hot air housing 1 and the drum 2. The third gear 503 is used to drive the second gear 502 to rotate;

[0037] The first gear ring 504 is fixed to the inner cavity of the hot air housing 1, and the inner wall of the first gear ring 504 is meshed with the outer wall of the third gear 503;

[0038] The scraping unit includes a flip plate 505, a fourth gear 506, and a second gear ring 507;

[0039] The flip plate 505 is rotatably mounted on the outer wall of the rotating ring 501 through a rotating rod, and the flip plate 505 is used to scrape the sludge in the inner cavity of the rotating drum 2;

[0040] The fourth gear 506 is fixed to one end of the rotating rod of the flip plate 505 and is located in the inner cavity of the rotating ring 501. The fourth gear 506 is used to drive the flip plate 505 to rotate;

[0041] The second gear ring 507 is fixed on the inner side of the second gear 502, and the second gear ring 507 is meshed with the outer wall of the fourth gear 506. The second gear ring 507 is used to synchronously drive the fourth gear 506 to rotate when the second gear 502 rotates;

[0042] A hot air layer is formed inside the hot air housing 1 for the third gear 503 to move circumferentially.

[0043] In this embodiment: through this structure, when the sludge needs to be pyrolyzed, the sludge is put into the drum 2 from one end, and the hot air housing 1 and the driving motor 4 are driven. The hot air housing 1 works to pyrolyze the sludge, and the driving motor 4 drives the spur gear connected to the output end to drive the first gear 3 to rotate. The rotation of the first gear 3 will synchronously drive the drum 2 to rotate. The rotating drum 2 will synchronously drive the rotating ring 501 of the inner cavity to rotate. The rotating rotating ring 501 will synchronously drive the third gear 503 installed on the outer wall to rotate. The circumferentially moving third gear 503 will contact the stationary first gear ring 504, thereby giving the third gear 503 a rotation thrust, and the drum 2 will rotate. The moving third gear 503 will synchronously drive the second gear 502 to rotate, and the second gear ring 507 fixed in the inner cavity of the second gear 502 will also rotate with the rotation of the second gear 502, thereby giving the fourth gear 506 meshing with its outer wall a rotational thrust, thereby driving the flip plate 505 installed on the rotating ring 501 to rotate. The flip plate 505 rotates and contacts the sludge in the inner cavity of the rotating drum 2, scraping the sludge attached to the inner cavity of the rotating drum 2, and the sludge will be separated from the inner cavity of the rotating drum 2 through the teeth and holes on the outer wall of the flip plate 505, and move downward from a higher position, completing the flipping of the sludge, further increasing the contact area between the sludge and the hot air, and improving the pyrolysis efficiency.

[0044] Please refer to Figure 1-Figure 3 The inner cavity of the rotating ring 501 is formed with a rotating groove for the second gear 502 to rotate, and the inner cavity of the rotating ring 501 is formed with a movable groove for the fourth gear 506 to rotate.

[0045] In this embodiment: this structure can provide space for the rotation of the fourth gear 506, and when the drum 2 rotates clockwise, the third gear 503 will rotate counterclockwise, and the second gear 502 will rotate clockwise, then the fourth gear 506 will rotate counterclockwise under the rotation thrust of the second gear ring 507, so that the rotation direction of the flip plate 505 is opposite to the rotation direction of the drum 2, so as to facilitate the scraping of the sludge in the inner cavity of the drum 2.

[0046] Please refer to Figure 1-Figure 3 There are multiple flip plates 505, which are evenly distributed on the outer wall of the rotating ring 501 with the dot of the rotating ring 501 as the center. The outer wall of the flip plate 505 is toothed, and the teeth on the outer walls of adjacent flip plates 505 are staggered with each other. The flip plate 505 is provided with multiple holes for sludge to pass through, so as to allow sludge to pass through when scraping the sludge.

[0047] In this embodiment: this structure can reduce the resistance encountered by the flip plate 505 during scraping, and the staggered outer wall teeth of the flip plate 505 can further scrape the sludge remaining in front.

[0048] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for pyrolysis and frying of sewage sludge, comprising a hot air housing (1), a rotating drum (2) rotatably mounted in the inner cavity of the hot air housing (1), a first gear (3) fixed to the outer wall of the rotating drum (2), a drive motor (4) disposed at one end of the outer portion of the hot air housing (1), a spur gear meshing with the first gear (3) fixedly connected to the output end of the drive motor (4), characterized in that: A turning mechanism (5) disposed on the hot air housing (1) and the rotating drum (2), the turning mechanism (5) being used to scrape the sludge adhering to the inner cavity of the rotating drum (2); The turning mechanism (5) comprises a transmission unit and a scraping unit; The transmission unit is used to provide power for the rotation of the scraping unit; The scraping unit rotates in the opposite direction to the rotating drum through the rotational force of the transmission unit, thereby scraping the sludge attached to the rotating drum (2).

2. The device for pyrolysis and frying of sewage sludge according to claim 1, characterized in that: The transmission unit comprises a rotating ring (501), a second gear (502), a third gear (503), and a first gear ring (504); The rotating ring (501) is fixed to the inner cavity of the rotating drum (2) via a mounting bracket, and the rotating ring (501) is used to provide support for the rotation of the second gear (502); The second gear (502) is rotatably sleeved on the outer wall of the rotating ring (501), and the second gear (502) is used to drive the flip plate (505) to rotate; The third gear (503) is rotatably mounted on the outer wall of the rotating drum (2) and extends between the hot air housing (1) and the rotating drum (2), and the third gear (503) is used to drive the second gear (502) to rotate; The first gear ring (504) is fixed to the inner cavity of the hot air housing (1), and the inner wall of the first gear ring (504) is meshed with the outer wall of the third gear (503).

3. The device for pyrolysis and frying of sewage sludge according to claim 1, characterized in that: The scraping unit comprises a flip plate (505), a fourth gear (506), and a second gear ring (507); The flip plate (505) is rotatably mounted on the outer wall of the rotating ring (501) via a rotating rod, and the flip plate (505) is used to scrape the sludge in the inner cavity of the rotating drum (2); The fourth gear (506) is fixed to one end of the rotating rod of the flip plate (505) and is located in the inner cavity of the rotating ring (501), and the fourth gear (506) is used to drive the flip plate (505) to rotate; The second gear ring (507) is fixed on the inner side of the second gear (502), the second gear ring (507) is meshed with the outer wall of the fourth gear (506), and the second gear ring (507) is used to synchronously drive the fourth gear (506) to rotate when the second gear (502) rotates.

4. The device for pyrolysis and frying of sewage sludge according to claim 2, characterized in that: The inner cavity of the rotating ring (501) is formed with a rotating groove for the second gear (502) to rotate, and the inner cavity of the rotating ring (501) is formed with a movable groove for the fourth gear (506) to rotate.

5. The device for pyrolysis and frying of sewage sludge according to claim 3, characterized in that: The number of the flip plates (505) is multiple, and the multiple flip plates (505) are evenly distributed on the outer wall of the rotating ring (501) with the dot of the rotating ring (501) as the center. The outer wall of the flip plate (505) is tooth-shaped, and the teeth on the outer walls of adjacent flip plates (505) are staggered with each other.

6. The device for pyrolysis and frying of sewage sludge according to claim 3, characterized in that: The turnover plate (505) is provided with a plurality of holes for the sludge to pass through, so as to allow the sludge to pass through when the sludge is scraped.

7. The device for pyrolysis and frying of sewage sludge according to claim 2, characterized in that: A hot air layer is formed inside the hot air housing (1) for the third gear (503) to move circumferentially.

Images