Sludge treatment device for oil refinery

Abstract

A sludge treatment device for an oil refinery comprises a support, a material mixing barrel is arranged on the support, a stirring assembly is rotationally arranged in the material mixing barrel, the bottom of the stirring assembly penetrates through the bottom face of the material mixing barrel, a motor is arranged on the support, the output end of the motor is connected with the bottom end of the stirring assembly through a second transmission part, and a supporting part is arranged in the material mixing barrel. The stirring assembly is rotationally connected with the supporting part. An outlet is formed in the bottom end of the mixing barrel, a sealing plate is rotationally arranged at the outlet of the mixing barrel, and the free end of the sealing plate is connected with the mixing barrel through a lock catch. The stirring pipe and the stirring rod are rotationally arranged on the hollow shaft and are connected with the fixed shaft in the hollow pipe through the first transmission part, so that the stirring blades of the stirring pipe and the stirring rod can be driven to rotate when the stirring pipe and the stirring rod rotate along with the hollow shaft; therefore, the stirring effect of the stirring pipe and the stirring rod on the oily sludge and the water in the mixing barrel can be improved, the oily sludge and the water are stirred more uniformly, and the practicability of the sludge treatment device for the oil refinery is improved.

Description

Technical Field

[0001] The utility model belongs to the field of oil sludge treatment, in particular to a sludge treatment device for an oil refinery. Background Art

[0002] When oil refineries are refining oil, during transportation, use, storage and other processes, due to various accidents, improper operation, equipment damage and other reasons, oil or finished oil will run, bubble, drip, leak, and form a solid or semi-solid mixture with mud and sand. These oily sludges contain a large amount of harmful substances, so the oily sludge needs to be treated before it can be discharged. At present, the treatment of oily sludge requires adding it to a mixing tank and mixing it with water, and then heating the stirred mixture of oily sludge and water for pyrolysis to complete the separation of oil, sludge and water. However, when the existing oily sludge treatment device mixes the oily sludge with water, the two are mixed and stirred unevenly, resulting in the inability to fully decompose the oil inside the oily sludge during the later pyrolysis process, thereby affecting the recovery rate of the oily sludge after pyrolysis. Utility Model Content

[0003] The utility model aims to provide a sludge treatment device for an oil refinery to solve the technical problems raised in the above background.

[0004] In order to achieve the above-mentioned purpose, the specific technical scheme of a sludge treatment device for an oil refinery of the utility model is as follows:

[0005] A sludge treatment device for an oil refinery comprises a support, a mixing barrel is arranged on the support, the upper end of the mixing barrel is open, a stirring assembly is rotatably arranged in the mixing barrel, and the bottom of the stirring assembly penetrates the bottom surface of the mixing barrel, a motor is arranged on the support, the output end of the motor is connected to the bottom end of the stirring assembly through a second transmission part, a support part is arranged in the mixing barrel, and the stirring assembly is rotatably connected to the support part. An outlet is opened at the bottom end of the mixing barrel, and a sealing plate is rotatably arranged at the outlet position of the mixing barrel, and the free end of the sealing plate is connected to the mixing barrel through a lock.

[0006] The utility model of a sludge treatment device for an oil refinery has the following advantages:

[0007] 1. The utility model rotatably arranges a stirring tube and a stirring rod on a hollow shaft, and connects the stirring tube and the fixed shaft in the hollow tube through a first transmission part, so that the stirring tube and the stirring rod can drive their own stirring blades to rotate when they rotate along with the hollow shaft, thereby increasing the stirring effect of the stirring tube and the stirring rod on the oily sludge and water in the mixing barrel, making the oily sludge and water stirred more evenly, and improving the practicability of the sludge treatment device for oil refineries.

[0008] 2. The utility model provides a scraper on the support arm, and after the mixture of oily sludge and water is discharged, the motor drives the hollow shaft, and the hollow shaft drives the support arm and the scraper to rotate, so as to scrape out and clean the residue on the inner wall of the mixing barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the structure of a sludge treatment device for an oil refinery according to the utility model;

[0010] Figure 2 This is a schematic diagram of the bottom of the mixing barrel of the utility model;

[0011] Figure 3 This is a schematic diagram of the interior of the mixing barrel of the utility model;

[0012] Figure 4 This is a schematic diagram of the stirring assembly of the utility model;

[0013] Figure 5 This is a schematic diagram of the stirring tube and the first transmission part of the utility model;

[0014] Figure 6 This is a schematic diagram of the support arm and scraper of the utility model;

[0015] Figure 7 It is a schematic diagram of the hollow shaft, support lugs, cap and snap ring of the utility model.

[0016] Description of the markings in the figure:

[0017] 1. Bracket; 101. Bottom plate; 102. Support plate; 103. Top plate; 2. Mixing barrel; 3. Stirring assembly; 31. Hollow shaft; 32. Stirring tube; 33. Stirring rod; 4. Support part; 41. Loading ring; 42. Extension arm; 5. Flap; 6. Fixed shaft; 61. Connecting arm; 7. First transmission part; 71. First bevel gear; 72. Second bevel gear; 8. Stirring blade; 9. Water outlet; 10. Connecting head; 1001. Connecting tube; 11. Second transmission part; 1101. Gear ring; 1102. Gear; 12. Motor; 13. Water pump; 14. Guide groove; 15. Closing plate; 16. Support arm; 17. Scraper; 18. Support ear; 19. Cap; 20. Snap ring. DETAILED DESCRIPTION

[0018] In order to better understand the purpose, structure and function of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] like Figures 1 to 7As shown, a sludge treatment device for an oil refinery of the utility model comprises a bracket 1 for supporting the sludge treatment device, the bracket 1 comprises a bottom plate 101, a support plate 102 and a top plate 103, and a plurality of support plates 102 are distributed on the bottom plate 101, and a top plate 103 is provided at the top of the support plate 102. A mixing barrel 2 is provided on the top plate 103 of the bracket 1, and the upper end of the mixing barrel 2 is provided with an opening, and oily sludge can be added to the mixing barrel 2 through the opening by using a lifting device. At the same time, a stirring assembly 3 is rotatably provided in the mixing barrel 2, and the bottom of the stirring assembly 3 penetrates the bottom surface of the mixing barrel 2. A motor 12 is provided on the bottom plate 101 of the bracket 1, and the motor 12 is connected to an external power supply. The output end of the motor 12 is connected to the bottom end of the stirring assembly 3 through a second transmission part 11, so that the power of the motor 12 is transmitted to the stirring assembly 3 through the second transmission part 11 to stir the materials in the mixing barrel 2. In order to increase the stability of the stirring assembly 3 in the mixing barrel 2, a support portion 4 is provided in the mixing barrel 2, and the stirring assembly 3 is rotatably connected to the support portion 4. An outlet is also provided at the bottom of the mixing barrel 2, and a sealing plate 15 is rotatably provided at the outlet position of the mixing barrel 2, and the free end of the sealing plate 15 is connected to the mixing barrel 2 by a lock. The connection method of the lock is convenient and fast, which can improve the working efficiency of the sludge treatment device for the refinery. After the materials and clean water in the mixing barrel 2 are evenly stirred, the sealing plate 15 can be opened to discharge the mixture in the mixing barrel 2 to the next container for pyrolysis treatment.

[0020] Specifically, Figure 4 As shown, the stirring assembly 3 includes a hollow shaft 31 rotatably arranged in the mixing barrel 2, the lower end of the hollow shaft 31 is rotatably arranged with the bottom of the mixing barrel 2 and penetrates the bottom of the mixing barrel 2 and extends outward, a stirring tube group is provided inside the mixing barrel 2 below the hollow shaft 31, and a stirring rod group is evenly distributed on the hollow shaft 31 in sequence, and the stirring rod group is located above the stirring tube group.

[0021] like Figure 3 and Figure 4 As shown, the support portion 4 includes extension arms 42 distributed on the inner wall of the mixing barrel 2, each extension arm 42 is radially arranged along the mixing barrel 2, and the free end of each extension arm 42 is extended toward the center position of the mixing barrel 2, and a load-bearing ring 41 is connected to the free end of each extension arm 42, and a cap 19 is rotatably provided on the load-bearing ring 41, and the hollow shaft 31 is set on the cap 19 by screws.

[0022] like Figure 1 and Figure 2As shown, the second transmission part 11 for connecting the motor 12 and the hollow shaft 31 includes a gear ring 1101 arranged at the bottom end of the hollow shaft 31, and a gear 1102 arranged on the output end of the motor 12, and the gear 1102 is meshed with the gear ring 1101. When the motor 12 is started, the motor 12 drives the gear 1102 on its output end, and the gear 1102 drives the gear ring 1101 meshed with it to rotate, and the rotation of the gear ring 1101 drives the hollow shaft 31 connected thereto to rotate, and the rotation of the hollow shaft 31 rotates the stirring tube group and the stirring rod group arranged thereon, and the oily sludge and water in the mixing barrel 2 are stirred and mixed during the rotation.

[0023] Preferably, a connecting arm 61 is distributed on the support portion 4, a clamping ring 20 is provided at the free end of the connecting arm 61, a fixed shaft 6 is detachably provided in the clamping ring 20, and the fixed shaft 6 is rotatably arranged with the hollow shaft 31. Among them, a plurality of extension arms 42 can be arranged in the mixing barrel 2, and three are preferably arranged in this embodiment, and the number of the connecting arms 61 can be arranged corresponding to the extension arms 42, and a plug hole is opened on the clamping ring 20, the fixed shaft 6 is inserted in the clamping ring 20, and the clamping ring 20 and the fixed shaft 6 are detachably connected by a latch connection.

[0024] The stirring tube group and the stirring rod group are both rotatably arranged with the hollow shaft 31, and are connected to the fixed shaft 6 through the first transmission part 7. Specifically, the stirring tube group includes a stirring tube 32 symmetrically rotatably arranged on the hollow shaft 31, and the stirring rod assembly includes a stirring rod 33 symmetrically rotatably arranged on the hollow shaft 31, and stirring blades 8 are distributed circumferentially on each stirring tube 32 and stirring rod 33. The first transmission part 7 includes a first bevel gear 71 distributed on the fixed shaft 6, and a second bevel gear 72 arranged at the inner end of each stirring tube 32 and each stirring rod 33, and the corresponding second bevel gear 72 is meshed with the first bevel gear 71.

[0025] The rotation of the hollow shaft 31 drives the stirring tubes 32 and stirring rods 33 arranged thereon to revolve, while the first bevel gear 71 on the fixed shaft 6 is fixed and does not rotate. When the second bevel gear 72 correspondingly connected to the stirring tubes 32 and the stirring rods 33 rotates with the hollow shaft 31, the second bevel gear 72 starts to rotate, thereby driving the stirring tubes 32 and stirring rods 33 arranged thereon to rotate, thereby achieving the purpose of the stirring tubes 32 and stirring rods 33 rotating while revolving. When the stirring tubes 32 and the stirring rods 33 rotate, the stirring blades 8 arranged thereon correspondingly will be driven to rotate, so that the oily sludge and water are stirred more evenly.

[0026] As another preferred embodiment, the stirring tube 32 is provided with a plurality of water outlet holes 9 in the circumferential direction, and a connector 10 is provided at the inner end of the stirring tube 32, and a connecting pipe 1001 is rotatably provided on the connecting head 10, and a water pump 13 is provided on the bottom plate 101, and the connecting pipe 1001 extends downward from the hollow shaft 31 and is connected to the water outlet pipe of the water pump 13, and the water inlet pipe of the water pump 13 can be placed in an external water source through a hose. Specifically, while adding the oily sludge into the mixing barrel 2, the water pump 13 is started, and the water pump 13 draws in external water and transports it to each stirring tube 32 through the connecting pipe 1001 and the connector 10, and the water entering the stirring tube 32 is then sprayed out through the water outlet hole 9, so that the oily sludge gradually added to the mixing barrel 2 can contact with the water faster and more evenly, and the stirring efficiency is better.

[0027] It should be noted that the hollow shaft 31 is composed of two halves, and the edges of the two halves extend outward with lugs 18, and the corresponding lugs 18 are connected by bolts. The side wall of the cap 19 is connected to the side wall of the hollow shaft 31 by screws. When inspecting the fixed shaft 6 in the hollow shaft 31, the pin of the clamping ring 20 can be removed first, and then the screws on the cap 19 can be removed, and the hollow shaft 31 and the fixed shaft 6 can be removed from the bearing ring 41, and then the bolts connected to the hollow shaft 31 can be removed, and the components in the hollow shaft 31 can be inspected.

[0028] As a further improvement, flaps 5 are symmetrically distributed on the hollow shaft 31, and each flap 5 is tilted on the hollow shaft 31. While the hollow shaft 31 drives the stirring tube 32 and the stirring rod 33 to stir the oily sludge, the flap 5 will also rotate with the hollow shaft 31, and flip the mixture of the oily sludge and water upward layer by layer during the rotation, and the flipped mixture will then flip downward through the inner edge of the mixing barrel 2, so that the mixture in the mixing barrel 2 forms a circulation state, which is convenient for the stirring tube 32 and the stirring rod 33 to evenly mix and stir the oily sludge and water.

[0029] like Figure 4 and Figure 6 As shown, a support arm 16 is also provided on the hollow shaft 31, and a scraper 17 is provided at the free end of the support arm 16. After the mixture of oily sludge and water is discharged, the motor 12 drives the hollow shaft 31, and the hollow shaft 31 drives the support arm 16 and the scraper 17 to rotate, so as to scrape out and clean the residue on the inner wall of the mixing barrel 2, thereby saving cleaning time.

[0030] In order to facilitate receiving the mixture when it is discharged, a guide groove 14 is provided on the bottom plate 101 through a support, and the guide groove 14 is inclined relative to the bottom plate 101 , and the guide groove 14 is located below the mixing barrel 2 .

[0031] Method of use: start the water pump 13 and the motor 12, and the motor 12 drives the stirring assembly 3 to work through the second transmission part 11. At the same time, the water pump 13 will also transport the external clean water to the mixing barrel 2 through each stirring tube 32, and then add the oily sludge into the mixing barrel 2 through the opening of the mixing barrel 2, and stir the oily sludge and clean water in the mixing barrel 2 through each stirring tube 32 and each stirring rod 33 in the stirring assembly 3, so that the oily sludge and clean water in the mixing barrel 2 can be mixed evenly, and then open the cover to discharge the mixture in the mixing barrel 2 through the guide groove 14 to the container of the next process for pyrolysis.

[0032] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A sludge treatment device for an oil refinery, characterized in that: The invention comprises a support (1), a mixing barrel (2) is arranged on the support (1), the upper end of the mixing barrel (2) is open, a stirring assembly (3) is rotatably arranged in the mixing barrel (2), and the bottom of the stirring assembly (3) penetrates the bottom surface of the mixing barrel (2), a motor (12) is arranged on the support (1), the output end of the motor (12) is connected to the bottom end of the stirring assembly (3) through a second transmission part (11), a support part (4) is arranged in the mixing barrel (2), and the stirring assembly (3) is rotatably connected to the support part (4); An outlet is provided at the bottom end of the mixing barrel (2), and a sealing plate (15) is rotatably provided at the outlet position of the mixing barrel (2), and a free end of the sealing plate (15) is connected to the mixing barrel (2) via a lock; The stirring assembly (3) comprises a hollow shaft (31) rotatably arranged in the mixing barrel (2), the upper end of the hollow shaft (31) is rotatably arranged with the support part (4), a connecting arm (61) is distributed on the support part (4), a clamping ring (20) is provided at the free end of the connecting arm (61), a fixed shaft (6) is detachably arranged in the clamping ring (20), the fixed shaft (6) and the hollow shaft (31) are rotatably arranged, a stirring tube group is rotatably arranged below the hollow shaft (31), and a stirring rod group is rotatably distributed on the hollow shaft (31) in sequence; The stirring tube group and the stirring rod group are both connected to the fixed shaft (6) via a first transmission part (7).

2. The sludge treatment device for an oil refinery according to claim 1, characterized in that: The support portion (4) comprises extension arms (42) distributed on the inner wall of the mixing barrel (2), and the free end of each extension arm (42) is connected to a bearing ring (41), a cap (19) is rotatably provided on the bearing ring (41), and the hollow shaft (31) is fixed to the cap (19) by means of screws.

3. The sludge treatment device for an oil refinery according to claim 2, characterized in that: The second transmission part (11) comprises a ring gear (1101) arranged at the bottom end of the hollow shaft (31), and a gear (1102) arranged on the output end of the motor (12), wherein the gear (1102) meshes with the ring gear (1101).

4. A sludge treatment device for an oil refinery according to any one of claims 1 to 3, characterized in that: The stirring tube group comprises a stirring tube (32) symmetrically rotatably arranged on a hollow shaft (31), and the stirring rod assembly comprises a stirring rod (33) symmetrically rotatably arranged on the hollow shaft (31), and stirring blades (8) are distributed in the circumferential direction of each stirring tube (32) and stirring rod (33); The first transmission part (7) comprises a first bevel gear (71) distributed on the fixed shaft (6), and a second bevel gear (72) provided at the inner end of each stirring tube (32) and each stirring rod (33), wherein the corresponding second bevel gear (72) meshes with the first bevel gear (71).

5. The sludge treatment device for an oil refinery according to claim 4, characterized in that: The hollow shaft (31) is provided with flaps (5) symmetrically distributed in sequence, and each flap (5) is arranged obliquely on the hollow shaft (31).

6. The sludge treatment device for an oil refinery according to claim 1, characterized in that ； The support (1) comprises a bottom plate (101), a support plate (102) and a top plate (103), wherein a plurality of support plates (102) are distributed on the bottom plate (101), a top plate (103) is provided at the top of the support plate (102), a mixing barrel (2) is provided on the top plate (103), and a motor (12) is provided on the bottom plate (101).

7. The sludge treatment device for an oil refinery according to claim 4, It is characterized by: The inner end of the stirring tube (32) is provided with a connecting head (10), and a connecting tube (1001) is rotatably provided on the connecting head (10), and a plurality of water outlet holes (9) are opened in the circumferential direction of the stirring tube (32); A water pump (13) is provided on the bottom plate (101), and a water outlet pipe of the water pump (13) is connected to the connecting pipe (1001).

8. A sludge treatment device for an oil refinery according to claim 7, It is characterized by: The bottom plate (101) is provided with a guide groove (14) through a support, and the guide groove (14) is arranged obliquely relative to the bottom plate (101), and the guide groove (14) is located below the mixing barrel (2).

9. The sludge treatment device for an oil refinery according to claim 4, characterized in that: A support arm (16) is provided on the hollow shaft (31), and a scraper (17) is provided at the free end of the support arm (16).

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