Sealed feeding equipment for thermal desorption of oil sludge

Abstract

The utility model relates to the technical field of feeding equipment, in particular to sealed feeding equipment for thermal desorption of oil sludge. According to the technical scheme, the device comprises a rotary drum, and the two ends of the rotary drum are rotationally connected with supports through rotary shafts; the transfer feeding assembly comprises a feeding tank, a lower blocking plug, a connecting rod and an upper blocking plug, the upper blocking plug is arranged in the center of the top of the feeding tank, the lower blocking plug is arranged in the center of the bottom of the feeding tank, and the lower blocking plug is fixedly connected with the upper blocking plug through the connecting rod; the outer wall of the feeding tank is in sliding connection with the feeding pipe, and the bottom of the lower blocking plug is fixedly connected with the feeding pipe. The upper feeding port and the lower discharging port are not opened at the same time, namely the lower discharging port is closed when the upper feeding port is opened, and the lower discharging port is opened when the upper feeding port is closed, so that the oil sludge box is prevented from being directly communicated with the rotary drum, and heat in the rotary drum is prevented from being directly dissipated into the oil sludge box to influence the evaporation effect of the rotary drum.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding equipment, in particular to a sealing feeding equipment for oil sludge thermal desorption. Background Art

[0002] Thermal desorption is a physical action, which is to vaporize the water and oil components in oily sludge or oil-based mud at a set temperature, separate them from the solid phase and then treat them, and discharge the dry residue of the solid component after dehydration and deoiling. In the process of thermal desorption of oil-based mud, the water and oil components evaporate at different temperatures, and the speed of evaporation is related to factors such as high temperature around the material, large surface area of ​​the material in contact with heat, and fast gas flow on the surface. The evaporation rate is fastest when the material reaches the boiling temperature of the corresponding medium, and boiling is the process of violent vaporization of a substance inside and on the surface of the liquid at a certain temperature.

[0003] In the prior art, the thermal desorption device is first preheated. After the preheating is completed, the material is moved to the thermal desorption device through a feeding pipe, and finally the water and oil in the oil sludge are separated by the thermal desorption device.

[0004] However, when the feeding device is used for thermal desorption of oil sludge, the thermal desorption device is connected to the feeding part, and heat will flow through the connecting pipe and dissipate from the thermal desorption device to the feeding part, resulting in insufficient heat in the thermal desorption device, affecting the evaporation of oil and water in the oil sludge. Utility Model Content

[0005] The utility model aims to solve the problem in the background technology that heat dissipates through connecting pipes and affects the evaporation of oil and water in the sludge, and proposes a sealed feeding device for thermal desorption of sludge.

[0006] The technical solution of the utility model is: a sealed feeding device for oil sludge thermal desorption, comprising:

[0007] A rotating drum, both ends of which are rotatably connected to supports via a rotating shaft, and the tops of the two supports are respectively fixedly connected to a discharge pipe and a feed pipe;

[0008] The transfer feed assembly includes a feed tank, a lower blocking plug, a connecting rod and an upper blocking plug. The upper blocking plug is arranged at the top center of the feed tank, and the lower blocking plug is arranged at the bottom center of the feed tank. The lower blocking plug is fixedly connected to the upper blocking plug through the connecting rod;

[0009] The outer wall of the feed tank is slidably connected to the feed pipe, the bottom of the lower blocking plug is fixedly connected to the feed pipe, and the top of the feed pipe is fixedly connected to an oil sludge box.

[0010] Optionally, an upper feed port is fixedly installed on the top of the feed tank, and a lower discharge port is fixedly installed on the bottom of the feed tank. The upper feed port and the lower discharge port both adopt a funnel-shaped structure, the upper blocking plug is located at the center of the upper feed port, and the lower blocking plug is located at the center of the lower discharge port.

[0011] Optionally, the bottom wall of the upper blocking plug is in contact with the upper feed port, the lower blocking plug has a truncated cone structure, and there is a distance between the lower discharge port and the lower blocking plug.

[0012] Optionally, oil sludge is arranged inside the oil sludge box, and the oil sludge enters the feed tank through the upper feed port and then enters the support from the lower discharge port.

[0013] Optionally, the inner wall of the rotating drum is rotatably connected to a thermal desorption device, and a speed regulating component is provided at the end of the thermal desorption device.

[0014] Optionally, the speed regulating assembly includes a pressure block, a square frame, a lifting plate and a linkage rod, the pressure block adopts an elliptical structure, the curved surface of the pressure block contacts the square frame, the lifting plate is fixedly installed on the top of the square frame, and the linkage rod is fixedly installed on the side of the lifting plate.

[0015] Optionally, the end of the linkage rod is fixedly connected to the feed tank, and the outer wall of the feed pipe is provided with a clearance groove for the linkage rod to slide, the length of the clearance groove is shorter than the length of the feed tank, and the feed tank always completely blocks the clearance groove.

[0016] Optionally, the end of the thermal desorption device is fixedly connected to the pressure block via a rotating shaft, a guide plate is fixedly mounted on the end of the support, and the side of the lifting plate is slidably connected to the guide plate.

[0017] Compared with the prior art, the utility model has the following beneficial technical effects:

[0018] The utility model prevents the oil mud box from being directly connected with the rotating drum, and prevents the heat in the rotating drum from being directly dissipated into the oil mud box, thereby affecting the evaporation effect of the rotating drum.

[0019] Furthermore, the amount of sludge transported per unit time in the feed tank is automatically adjusted according to the rotation speed of the thermal desorption device to avoid sludge accumulation or idling in the thermal desorption device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the overall structure of an embodiment of the utility model is given;

[0021] Figure 2 A schematic cross-sectional view of a feed tank structure according to an embodiment of the utility model is given;

[0022] Figure 3 A schematic diagram of the structure of a pressing block according to an embodiment of the utility model is given;

[0023] Figure 4 A schematic diagram of the separation state of the thermal desorption device structure of an embodiment of the utility model is given.

[0024] Figure numerals: 1. rotating drum; 2. support; 3. discharge pipe; 4. feed pipe; 5. sludge box; 6. transfer feed assembly; 61. feed tank; 62. upper feed port; 63. lower discharge port; 64. lower blocking plug; 65. connecting rod; 66. upper blocking plug; 7. speed regulating assembly; 71. pressure block; 72. guide plate; 73. frame; 74. lifting plate; 75. linkage rod; 8. thermal desorption device. DETAILED DESCRIPTION

[0025] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0026] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0027] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Embodiment 1

[0031] This embodiment provides a sealed feeding device for oil sludge thermal desorption, such as Figure 1 As shown, it includes a rotating drum 1, both ends of which are rotatably connected to supports 2 through a rotating shaft, the tops of the two supports 2 are respectively fixedly connected with a discharge pipe 3 and a feed pipe 4, and the top of the feed pipe 4 is fixedly connected with an oil sludge box 5; oil sludge is arranged inside the oil sludge box 5, the feed is fed at the feed pipe 4, and the discharge is carried out at the discharge pipe 3, and oil sludge exists inside the rotating drum 1, and oil and water in the oil sludge are evaporated and separated by the rotating drum 1, and the supports 2 serve as a bracket to support the rotating drum 1 to rotate.

[0032] like Figure 2 As shown, it also includes a transfer feed component 6, which includes a feed tank 61, a lower blocking plug 64, a connecting rod 65 and an upper blocking plug 66. The upper blocking plug 66 is arranged at the top center of the feed tank 61, and the lower blocking plug 64 is arranged at the bottom center of the feed tank 61. The lower blocking plug 64 is fixedly connected to the upper blocking plug 66 through the connecting rod 65. An upper feed port 62 is fixedly installed on the top of the feed tank 61, and a lower discharge port 63 is fixedly installed on the bottom of the feed tank 61. The upper blocking plug 66 is located at the center of the upper feed port 62, and the lower blocking plug 64 is located at the center of the lower discharge port 63.

[0033] like Figure 4 As shown, the inner wall of the rotating drum 1 is rotatably connected with a thermal desorption device 8, and a speed regulating component 7 is provided at the end of the thermal desorption device 8. The speed regulating component 7 is arranged on the left side of the transfer feeding component 6, and the speed regulating component 7 is used to control the transfer feeding component 6 to move up and down.

[0034] like Figure 2 As shown, the outer wall of the feed tank 61 is slidably connected to the feed pipe 4, and the bottom of the lower blocking plug 64 is fixedly connected to the feed pipe 4. The feed pipe 4 fixes the position of the lower blocking plug 64, and the feed tank 61 slides up and down relative to the lower blocking plug 64, thereby changing the state of the lower discharge port 63 and the upper feed port 62.

[0035] When the upper blocking plug 66 is separated from the upper feed port 62, the sludge in the sludge box 5 can enter the feed tank 61 through the upper blocking plug 66. When the lower blocking plug 64 is separated from the lower discharge port 63, the sludge can enter the support 2 from the feed tank 61. The feed tank 61 serves as a transfer station to prevent the sludge box 5 from being directly connected to the drum 1, which would cause heat dissipation and affect the evaporation effect of the drum 1.

[0036] When the feed tank 61 moves up and down relative to the upper blocking plug 66, the upper blocking plug 66 can pull the sludge blocked at the upper feed port 62 down into the feed tank 61, and the lower blocking plug 64 can push the sludge at the lower discharge port 63 down into the support 2 to avoid blockage.

[0037] The upper feed port 62 and the lower discharge port 63 are both funnel-shaped structures, which are used for guidance. At the same time, the curved surface of the funnel reduces friction and prevents sludge from adhering to the upper feed port 62 and the lower discharge port 63 to cause blockage. The sludge enters the feed tank 61 through the upper feed port 62, then enters the support 2 from the lower discharge port 63, and finally enters the drum 1 for evaporation.

[0038] The bottom wall of the upper blocking plug 66 contacts the upper feed port 62 , the lower blocking plug 64 has a truncated cone structure, and there is a distance between the lower discharge port 63 and the lower blocking plug 64 .

[0039] In this embodiment, the feed tank 61 is moved up and down without opening the upper feed port 62 and the lower discharge port 63 at the same time, that is, when the upper feed port 62 is opened, the lower discharge port 63 is closed, and when the upper feed port 62 is closed, the lower discharge port 63 is opened, so as to avoid direct connection between the sludge box 5 and the rotating drum 1, and prevent the heat in the rotating drum 1 from directly dissipating into the sludge box 5, thereby affecting the evaporation effect of the rotating drum 1.

[0040] Embodiment 2

[0041] Based on the first embodiment, this embodiment proposes a sealed feeding device for oil sludge thermal desorption, such as Figure 2 and 3 As shown, it includes a pressure block 71, a square frame 73, a lifting plate 74 and a linkage rod 75. The pressure block 71 adopts an elliptical structure. The curved surface of the pressure block 71 contacts the square frame 73. The lifting plate 74 is fixedly installed on the top of the square frame 73. The side of the lifting plate 74 is fixedly installed with a linkage rod 75. The end of the linkage rod 75 is fixedly connected to the feed tank 61.

[0042] The pressing block 71 rotates to make the frame 73 move up and down, thereby changing the height of the lifting plate 74 and the linkage rod 75, that is, changing the height of the feed tank 61, so as to perform the steps of Example 1. The speed of the feed tank 61 moving up and down is affected by the rotation speed of the pressing block 71, that is, affected by the thermal desorption device 8. Since the capacity of the feed tank 61 is limited, the amount of sludge it transports each time is fixed, and the speed of the up and down movement determines the amount of sludge it transports per unit time.

[0043] When the rotation speed of the thermal desorption device 8 is fast, the rotation speed of the pressing block 71 is fast, that is, the amount of oil sludge transported per unit time by the feed tank 61 is large. When the rotation speed of the thermal desorption device 8 is slow, the opposite is true. The rotation speed of the thermal desorption device 8 also represents the speed at which it rotates to transport the oil sludge. According to the rotation speed of the thermal desorption device 8, the speed at which the feed tank 61 feeds the support 2 is adjusted to avoid the accumulation of oil sludge or idling in the thermal desorption device 8.

[0044] like Figure 3 As shown, the outer wall of the feed pipe 4 is provided with a clearance groove for sliding the linkage rod 75. The length of the clearance groove is shorter than the length of the feed tank 61, and the feed tank 61 always completely blocks the clearance groove, and the sludge falls from the clearance groove, causing pollution.

[0045] The end of the thermal desorption device 8 is fixedly connected to the pressing block 71 through a rotating shaft, and a guide plate 72 is fixedly installed at the end of the support 2. The side of the lifting plate 74 is slidably connected to the guide plate 72. The guide plate 72 guides the lifting plate 74 to prevent the lifting plate 74 from deflecting.

[0046] In this embodiment, the rotation of the thermal desorption device 8 drives the pressure block 71 to rotate, so that the feed tank 61 moves up and down. The rotation speed of the thermal desorption device 8 determines the amount of sludge transported by the feed tank 61 per unit time, that is, the amount of sludge added per unit time is automatically adjusted according to the rotation speed of the thermal desorption device 8 to avoid sludge accumulation or idling in the thermal desorption device 8.

[0047] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A sealed feeding device for thermal desorption of oil sludge, characterized in that: include: A rotating drum (1), wherein both ends of the rotating drum (1) are rotatably connected to supports (2) via a rotating shaft, and the tops of the two supports (2) are respectively fixedly connected to a discharge pipe (3) and a feed pipe (4); The transfer feed assembly (6) comprises a feed tank (61), a lower blocking plug (64), a connecting rod (65) and an upper blocking plug (66), wherein the upper blocking plug (66) is arranged at the top center of the feed tank (61), and the lower blocking plug (64) is arranged at the bottom center of the feed tank (61), and the lower blocking plug (64) is fixedly connected to the upper blocking plug (66) via the connecting rod (65); The outer wall of the feed tank (61) is slidably connected to the feed pipe (4), the bottom of the lower blocking plug (64) is fixedly connected to the feed pipe (4), and the top of the feed pipe (4) is fixedly connected to the oil mud box (5).

2. The sealed feeding equipment for oil sludge thermal desorption according to claim 1, characterized in that: An upper feed port (62) is fixedly mounted on the top of the feed tank (61), and a lower discharge port (63) is fixedly mounted on the bottom of the feed tank (61). Both the upper feed port (62) and the lower discharge port (63) are funnel-shaped structures. The upper blocking plug (66) is located at the center of the upper feed port (62), and the lower blocking plug (64) is located at the center of the lower discharge port (63).

3. The sealed feeding equipment for oil sludge thermal desorption according to claim 2, characterized in that: The bottom wall of the upper blocking plug (66) contacts the upper material inlet (62), the lower blocking plug (64) adopts a truncated cone structure, and there is a distance between the lower material outlet (63) and the lower blocking plug (64).

4. The sealed feeding equipment for oil sludge thermal desorption according to claim 3, characterized in that: The oil sludge box (5) is provided with oil sludge inside. The oil sludge enters the feed tank (61) through the upper feed port (62) and then enters the support (2) through the lower discharge port (63).

5. The sealed feeding equipment for oil sludge thermal desorption according to claim 1, characterized in that: The inner wall of the rotating drum (1) is rotatably connected to a thermal desorption device (8), and a speed regulating component (7) is provided at the end of the thermal desorption device (8).

6. The sealed feeding equipment for oil sludge thermal desorption according to claim 5, characterized in that: The speed regulating assembly (7) comprises a pressing block (71), a square frame (73), a lifting plate (74) and a linkage rod (75); the pressing block (71) adopts an elliptical structure; the curved surface of the pressing block (71) contacts the square frame (73); the lifting plate (74) is fixedly mounted on the top of the square frame (73); and the linkage rod (75) is fixedly mounted on the side of the lifting plate (74).

7. The sealed feeding equipment for oil sludge thermal desorption according to claim 6, characterized in that: The end of the linkage rod (75) is fixedly connected to the feed tank (61), and the outer wall of the feed pipe (4) is provided with a clearance groove for the linkage rod (75) to slide, the length of the clearance groove is shorter than the length of the feed tank (61), and the feed tank (61) always completely blocks the clearance groove.

8. The sealed feeding equipment for oil sludge thermal desorption according to claim 7, characterized in that: The end of the thermal desorption device (8) is fixedly connected to the pressing block (71) via a rotating shaft, the end of the support (2) is fixedly mounted with a guide plate (72), and the side of the lifting plate (74) is slidably connected to the guide plate (72).

Images