External heat-based rotary thermal desorption equipment for oil sludge treatment
By designing external heat rotary sludge treatment and thermal desorption equipment, and using irregular curved surface grooves and driving structures inside the horizontal drum, the problems of low heat transfer efficiency and easy clogging of sludge in existing equipment are solved, and more efficient sludge treatment is achieved.
Patent Information
- Application Number
- CN202422431232.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-09
AI Technical Summary
The internal reactor contact area of existing thermal desorption equipment is small, the heat transfer efficiency is low, the sludge is easily blocked, and the mixing and stirring effect is poor, resulting in insufficient processing capacity.
A heat-detached equipment for treating and desorption of external heat rotary sludge is designed, and an irregular curved groove is installed in the horizontal drum to increase the contact area between the sludge and the heat source, and the rotating and rolling of the drum is achieved through the rolling ring and the driving structure to enhance the stirring effect.
The mixing uniformity and heat transfer efficiency of the sludge are improved, the processing volume of the equipment is increased, blocked, and more efficient sludge treatment is achieved.
Smart Images
Figure CN223255092U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil sludge treatment thermal desorption equipment, in particular to an external heat-based rotary oil sludge treatment thermal desorption equipment. Background Art
[0002] Oil sludge treatment has always been a global challenge. With the improvement of environmental regulations, the economical and environmentally friendly treatment of oil sludge has become increasingly important. Existing oil sludge treatment methods are no longer practical to meet new requirements, and new oil sludge treatment equipment is urgently needed. Oil sludge is a hazardous waste and must be handled by qualified units. However, due to technical reasons, after extracting the useful components from the sludge, the remaining residue is often stored or discharged, causing further pollution. For oil companies, establishing ideal oil sludge treatment facilities to effectively reduce environmental pollution risks and various costs is essential.
[0003] At present, most oil sludge disposal in my country adopts water washing separation and then thermal desorption, in which the organic components are converted into high-value-added products such as oil and gas, while the inorganic components are completely reduced and turned into reduced soil with stable properties, fully realizing the requirements of reduction, resource utilization and harmless disposal of oily sludge.
[0004] For subsequent thermal desorption and pyrolysis treatment, my country's current equipment mainly uses high-temperature heat source flue gas to heat the oily sludge to achieve decomposition and volatilization of organic components in the oily sludge.
[0005] Defects and shortcomings of existing technology:
[0006] 1. The existing thermal desorption equipment has a small contact area between the reactor and the oil sludge, resulting in low heat transfer efficiency and low processing capacity of a single set of equipment;
[0007] 2. The sludge itself is highly viscous and most of it adheres together. The existing thermal desorption treatment of sludge is prone to clogging and the overall mixing and stirring effect of the sludge is poor. Utility Model Content
[0008] The purpose of the utility model is to overcome the defects in the prior art and provide a rotary oil sludge treatment thermal desorption equipment based on external heat.
[0009] In order to achieve the above purpose, the technical solution of the utility model is to design a thermal desorption equipment based on external heat rotary oil sludge treatment, which includes
[0010] The drum is a horizontal structure with a number of irregular curved grooves arranged inside the drum; the feed port and the discharge port are arranged at both ends of the drum respectively;
[0011] An outer shell is sleeved outside the drum and forms a jacket cavity with the drum; a smoke inlet and a smoke outlet are respectively arranged at two ends of the outer shell and communicate with the jacket cavity;
[0012] The smoke inlet and the discharge port are at the same end of the equipment, and the smoke outlet and the feed port are at the other end of the equipment.
[0013] Furthermore, it also includes a base and a supporting structure, and both ends of the rotating drum are installed on the base through the supporting structure; the supporting structure includes a roller and a bracket assembly, and the two rollers are installed on the outer walls of the two ends of the rotating drum. The bottom of each roller is symmetrically provided with a bracket assembly, and the roller is in contact with the bracket assembly, and the bracket assembly is installed on the base.
[0014] Furthermore, the bracket assembly includes a support seat, a rotating shaft and a roller shaft. The support seat is installed on the base, the roller shaft is sleeved on the rotating shaft, the rotating shaft is installed on the support seat through a bearing seat, and the rolling ring is placed between the two roller shafts and abuts against the roller shafts.
[0015] Furthermore, it also includes a driving structure, which includes a ring gear, a driving seat, a driving gear, a driving shaft and a motor. The ring gear is sleeved on the outer wall of the rotating drum, the driving gear is sleeved on the driving shaft, the driving shaft is installed on the driving seat through a bearing seat, the driving seat is installed on the base, the driving shaft is connected to the driving end of the motor, and the driving gear is meshed with the ring gear.
[0016] Furthermore, it also includes an insulation sleeve, which is a trough body with an open bottom and two ends. The two ends of the bottom of the insulation sleeve are installed on the base and form a cavity with the base to facilitate the penetration of the rotating drum and the outer shell.
[0017] Furthermore, the insulation sleeve is composed of an insulation body and a support body. The insulation body is a transverse cylindrical body with a similar appearance to the rotating drum and a notch at the bottom. Both ends of the bottom of the transverse cylindrical body are fixedly mounted on the base through the support body.
[0018] Furthermore, the irregular curved groove is composed of a plurality of long arc-shaped plates, and the plurality of arc-shaped plates are connected end to end and enclosed to form an annular structure that matches the shape and size of the inner wall of the drum.
[0019] Furthermore, the inner wall of the rotating drum is also provided with a fixed plate, and the abutment points of the arc plates are supported by the fixed plate. One end of the fixed plate is connected to the abutment points between the arc plates, and the other end is vertically fixedly installed on the inner wall of the rotating drum.
[0020] Furthermore, the cross section of the arc-shaped plate is a semicircular or semi-elliptical structure.
[0021] Furthermore, the cross section of the arc-shaped plate is a semicircular structure, and the radius of the arc-shaped plate is 1 / 10-1 / 5 times the radius of the drum.
[0022] The advantages and beneficial effects of the utility model are:
[0023] (1) The utility model discloses a thermal desorption equipment for treating oil sludge based on external heating rotary type. By adopting an external heating rotary drum with irregular curved surface, the mixing degree of oil sludge inside the drum is increased during the rotation of the drum, thereby achieving uniform heating of the oil sludge.
[0024] (2) The utility model discloses a thermal desorption equipment for oil sludge treatment based on external heat rotation, which increases the contact area between the oil sludge and the heat source flue gas by arranging an irregular semicircular surface on the rotating drum, thereby improving the processing capacity of the equipment.
[0025] (3) The utility model has an irregular curved surface arranged inside the entire rotating drum. Under the action of the irregular curved surface, the entire oil sludge is continuously rolled inside the drum, thereby increasing the degree of stirring and rolling of the oil sludge inside the rotating drum. At the same time, the entire irregular curved surface presents a semicircular curved surface structure, which increases the contact area between the oil sludge and the external heat source, thereby achieving a better heat transfer effect per unit time and per unit area. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a schematic structural diagram of a rotary oil sludge treatment thermal desorption equipment based on external heat according to the present invention;
[0027] Figure 2 yes Figure 1 A first angle structural diagram of
[0028] Figure 3 yes Figure 1 A second angle structural diagram of
[0029] Figure 4 yes Figure 1 sectional view of ;
[0030] Figure 5 yes Figure 4 A partial enlarged view of middle A;
[0031] Figure 6 is a cross-sectional view of the drum;
[0032] In the figure: rotating drum 1, feed port 2, discharge port 3, flue gas inlet 4, flue gas outlet 5, base 6, rolling ring 7, support base 8, rotating shaft 9, roller shaft 10, gear ring 11, drive base 12, drive gear 13, drive shaft 14, insulation body 15, support body 16, arc plate 17, fixed plate 18, outer shell 19. DETAILED DESCRIPTION
[0033] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.
[0034] according to Figures 1 to 6 As shown, the utility model is a thermal desorption equipment for oil sludge treatment based on external heat rotary type, which includes
[0035] The drum 1 is a horizontal structure with a plurality of irregular curved grooves arranged inside the drum; the feed port 2 and the discharge port 3 are arranged at both ends of the drum 1 respectively;
[0036] The outer shell 19 is sleeved outside the drum 1 and forms a jacket cavity with the drum 1; the smoke inlet 4 and the smoke outlet 5 are respectively arranged at both ends of the outer shell 19 and communicate with the jacket cavity;
[0037] The flue gas inlet 4 and the discharge port 3 are at the same end of the equipment, and the flue gas outlet 5 and the feed port 2 are at the other end of the equipment opposite to each other.
[0038] In the above technical solution, irregular curved grooves are arranged inside the rotating drum. Under the action of the irregular curved grooves, the entire sludge is continuously rolled inside the drum, thereby increasing the stirring and rolling degree of the sludge inside the rotating drum; at the same time, the entire irregular curved groove presents a semicircular curved surface structure, which increases the external contact area between the sludge and the external heat source, thereby achieving better heat transfer effect per unit time and unit area.
[0039] As a preferred embodiment of the above technical solution, it also includes a base 6 and a supporting structure, and both ends of the rotating drum 1 are installed on the base 6 through the supporting structure; the supporting structure includes a roller 7 and a bracket assembly, and the two rollers 7 are installed on the outer walls at both ends of the rotating drum 1. The bottom of each roller 7 is symmetrically provided with a bracket assembly, and the roller 7 is in contact with the bracket assembly, and the bracket assembly is installed on the base 6.
[0040] As a preferred embodiment of the above technical solution, the bracket assembly includes a support seat 8, a rotating shaft 9 and a roller shaft 10. The support seat 8 is installed on the base 6, the roller shaft 10 is sleeved on the rotating shaft 9, the rotating shaft 9 is installed on the support seat 8 through a bearing seat, and the rolling ring 7 is placed between the two roller shafts 10 and abuts against the roller shafts 10.
[0041] As a preferred embodiment of the above technical solution, it also includes a driving structure, which includes a ring gear 11, a driving seat 12, a driving gear 13, a driving shaft 14 and a motor. The ring gear 11 is sleeved on the outer wall of the rotating drum 1, and the driving gear 13 is sleeved on the driving shaft 14. The driving shaft 14 is installed on the driving seat 12 through a bearing seat. The driving seat 12 is installed on the base 6. The driving shaft 14 is connected to the motor driving end, and the driving gear 13 is meshed with the ring gear 11.
[0042] As a preferred embodiment of the above technical solution, it also includes an insulation sleeve, which is a trough body with an open bottom and two ends. The two ends of the bottom of the insulation sleeve are installed on the base 6 and form a cavity with the base 6 to facilitate the penetration of the rotating drum 1 and the outer shell 19.
[0043] In the above technical solution, the provision of the insulation sleeve can improve the insulation performance and prevent heat loss; in addition, the two ends of the outer shell are connected to the grooves on the rotating drum through protrusions, and the outer shell is installed in the insulation sleeve.
[0044] As a preferred embodiment of the above technical solution, the insulation sleeve is composed of an insulation body 15 and a support body 16. The insulation body 15 is a transverse cylindrical body with a similar appearance to the rotating drum 1 and a notch at the bottom. The two ends of the bottom of the transverse cylindrical body are fixedly mounted on the base 6 through the support body 16.
[0045] As a preferred embodiment of the above technical solution, the irregular curved groove is composed of a plurality of long arc-shaped plates 17 , and the plurality of arc-shaped plates 17 are connected end to end and enclosed to form an annular structure that matches the shape and size of the inner wall of the drum 1 .
[0046] As a preferred embodiment of the above technical solution, a fixed plate 18 is further provided on the inner wall of the drum, and the abutment points of the arc plates 17 are supported by the fixed plate 18. One end of the fixed plate 18 is connected to the abutment points between the arc plates 17, and the other end is vertically fixedly installed on the inner wall of the drum 1.
[0047] As a preferred embodiment of the above technical solution, the cross section of the arc-shaped plate 17 is a semicircular or semi-elliptical structure.
[0048] As a preferred embodiment of the above technical solution, the cross section of the arc-shaped plate 17 is a semicircular structure, and the radius of the arc-shaped plate 17 is 1 / 10-1 / 5 times the radius of the drum 1 .
[0049] In the above technical solution, the rotating drum is composed of an inner drum and an outer drum, a plurality of long arc-shaped plates 17 and a fixing plate are installed on the inner wall of the inner drum, and the inner drum is installed on the inner wall of the outer drum through a bracket plate.
[0050] The utility model provides thermal desorption equipment for oil sludge treatment based on external heat rotary type, including a rotating drum, a feed port, a gear ring, a flue gas outlet, a roller ring, an outer shell, a roller ring, a flue gas inlet, a discharge port, and irregular semicircular curved grooves. The feed port and the flue gas outlet are located at the front end of the rotating drum and the outer shell; the flue gas inlet and the oil sludge outlet are located at the rear end of the rotating drum and the outer shell; the rotating drum is driven by the gear ring; the rotating drum is supported by two front and rear roller rings; a jacket cavity is provided between the rotating drum and the outer shell; an irregular semicircular curved surface is arranged inside the rotating drum; by adopting an external heat rotary rotating drum and arranging the irregular curved surface, the degree of mixing and stirring of the oil sludge inside the drum is increased during the rotation of the rotating drum, and the oil sludge is uniformly heated. By arranging the irregular semicircular curved surface on the rotating drum, the contact area between the oil sludge and the heat source flue gas is increased, thereby improving the processing capacity of the equipment.
[0051] The implementation process of this utility model is as follows:
[0052] After pretreatment, the oily sludge is conveyed by a belt conveyor through the feed port into the drum. The heat source flue gas then enters the cavity between the outer shell and the drum through the flue gas inlet. There, it exchanges heat with the material inside the drum. The entire drum rotates under the action of the ring gear, supported by two front and rear rollers.
[0053] like Figure 4-6 As shown, irregular curved surfaces are arranged inside the entire drum. Under the action of the irregular curved surfaces, the entire sludge is continuously rolled inside the drum, thereby increasing the degree of stirring and rolling of the sludge inside the drum. At the same time, the entire irregular curved surface presents a semicircular curved surface structure, which increases the contact area between the sludge and the external heat source, thereby achieving better heat transfer effect per unit time and per unit area.
[0054] The entire sludge to be treated is rotated from the front to the rear of the equipment by the ring gear inside the drum, and finally enters the repaired material storage area through the discharge port. After the heat source gas exchanges heat with the outer wall of the drum inside the cavity, it enters the flue gas collection device through the flue gas outlet.
[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.
Claims
1. A thermal desorption equipment for oil sludge treatment based on external heat rotary type, characterized in that: It includes The rotating drum (1) is a horizontal structure, and a plurality of irregular curved grooves are arranged inside the drum; the feed port (2) and the discharge port (3) are respectively arranged at both ends of the rotating drum (1); An outer shell (19), the outer shell (19) is sleeved outside the drum (1) and forms a jacket cavity with the drum (1); a smoke inlet (4) and a smoke outlet (5) are respectively arranged at two ends of the outer shell (19) and communicate with the jacket cavity; The flue gas inlet (4) and the discharge port (3) are at the same end of the equipment, and the flue gas outlet (5) and the feed port (2) are at the other end of the equipment.
2. The external heat rotary sludge treatment thermal desorption equipment according to claim 1 is characterized in that: It also includes a base (6) and a support structure, and both ends of the rotating drum (1) are mounted on the base (6) through the support structure; the support structure includes a rolling ring (7) and a bracket assembly, and the two rolling rings (7) are mounted on the outer walls of the two ends of the rotating drum (1), and the bracket assembly is symmetrically arranged at the bottom of each rolling ring (7), and the rolling ring (7) abuts against the bracket assembly, and the bracket assembly is mounted on the base (6).
3. The external heat rotary sludge treatment thermal desorption equipment according to claim 2 is characterized in that: The bracket assembly includes a support seat (8), a rotating shaft (9) and a roller (10), wherein the support seat (8) is mounted on the base (6), the roller (10) is sleeved on the rotating shaft (9), the rotating shaft (9) is mounted on the support seat (8) through a bearing seat, and the rolling ring (7) is placed between the two rollers (10) and abuts against the rollers (10).
4. The external heat rotary sludge treatment thermal desorption equipment according to claim 2 is characterized in that: It also includes a driving structure, which includes a ring gear (11), a driving seat (12), a driving gear (13), a driving shaft (14) and a motor, wherein the ring gear (11) is sleeved on the outer wall of the rotating drum (1), the driving gear (13) is sleeved on the driving shaft (14), the driving shaft (14) is mounted on the driving seat (12) through a bearing seat, the driving seat (12) is mounted on the base (6), the driving shaft (14) is connected to the driving end of the motor, and the driving gear (13) is meshed with the ring gear (11).
5. The external heat rotary sludge treatment thermal desorption equipment according to claim 2 is characterized in that: It also includes a heat-insulating sleeve, which is a trough body with an open bottom and two ends. The two ends of the bottom of the heat-insulating sleeve are mounted on the base (6) and form a cavity with the base (6) to facilitate the penetration of the rotating drum (1) and the outer shell (19).
6. The external heat rotary sludge treatment thermal desorption equipment according to claim 5 is characterized in that: The heat-insulating sleeve is composed of a heat-insulating body (15) and a support body (16). The heat-insulating body (15) is a transverse cylindrical body with a similar appearance to the rotating drum (1) and a notch at the bottom. The two ends of the bottom of the transverse cylindrical body are fixedly mounted on the base (6) through the support body (16).
7. The external heat rotary sludge treatment thermal desorption equipment according to claim 1 is characterized in that: The irregular curved groove is composed of a plurality of long arc-shaped plates (17), and the plurality of arc-shaped plates (17) are connected end to end and enclosed to form an annular structure that matches the shape and size of the inner wall of the rotating drum (1).
8. The external heat rotary sludge treatment thermal desorption equipment according to claim 7 is characterized in that: The inner wall of the rotating drum is further provided with a fixed plate (18), and the abutting portion of the arc-shaped plates (17) is supported by the fixed plate (18). One end of the fixed plate (18) is connected to the abutting portion between the arc-shaped plates (17), and the other end is vertically fixedly mounted on the inner wall of the rotating drum (1).
9. The external heat rotary sludge treatment thermal desorption equipment according to claim 8 is characterized in that: The cross section of the arc-shaped plate (17) is a semicircular or semi-elliptical structure.
10. The external heat rotary sludge treatment thermal desorption equipment according to claim 9 is characterized in that: The cross section of the arc-shaped plate (17) is a semicircular structure, and the radius of the arc-shaped plate (17) is 1 / 10 to 1 / 5 times the radius of the drum (1).