A device for removing oil and ash from a port warehouse
By introducing a dispersion cylinder and a guide channel design into the ash removal device for dock cleaning oil, combined with a multi-stage filtration structure, the problem of uneven distribution of cleaning oil was solved, oil quality was improved, maintenance was simplified, and efficient ash removal and device convenience were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YILING DISTRICT FACTORY YICHANG SHENGHUA REGENERATION ENERGY CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-24
AI Technical Summary
In existing dock cleaning oil deashing devices, the cleaning oil is unevenly distributed in the centrifugal separator, resulting in a large amount of oil concentrating at the bottom and failing to form a uniform filling state, which affects the quality of the oil.
The device employs a conical structure and guide channel design for the dispersion cylinder, combined with multi-stage filtration of the separation cylinder and separation plate, and multi-layer filter screens on the discharge pipe to form a multi-stage separation system, enhancing the ash interception effect. The device is also conveniently disassembled and maintained through a lifting ring driven by a servo motor.
This method achieves uniform dispersion of cleaning oil within the deashing chamber, improves oil quality, simplifies equipment maintenance, and enhances operational continuity and efficiency.
Smart Images

Figure CN224541218U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of port oil processing technology, and more specifically, to a device for removing ash from port oil tanks. Background Technology
[0002] During the storage and transportation of oil products at the dock, the oil being cleared often contains a large amount of ash impurities, which can affect the quality of the oil and its subsequent use.
[0003] Most existing separation devices for deashing cleaning oil at docks use a centrifugal separator combined with a rotary drive device. In actual operation, after the cleaning oil is stirred and mixed, it falls directly from the top opening of the centrifugal separator. Due to the lack of guiding and dispersing measures, it will quickly accumulate at the bottom of the centrifugal separator. This accumulation method results in uneven distribution of cleaning oil in the centrifugal separator, with a large amount of oil concentrated at the bottom, making it impossible to form a uniform filling state in the centrifugal separator.
[0004] Therefore, we have made improvements to this and proposed a device for removing ash from oil tanks at docks. Utility Model Content
[0005] The purpose of this utility model is to address the fact that most existing separation devices for deashing cleaning oil at docks adopt a structure design that combines a centrifugal separator with a rotary drive device. In actual operation, after the cleaning oil is stirred and mixed, it falls directly from the top opening of the centrifugal separator. Due to the lack of guiding and dispersing measures, it will quickly accumulate at the bottom of the centrifugal separator. This accumulation method results in uneven distribution of the cleaning oil in the centrifugal separator, with a large amount of oil concentrated at the bottom, making it impossible to form a uniform filling state in the centrifugal separator.
[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:
[0007] A device for removing ash from oil tanks at docks includes a tank body with three support legs fixedly mounted on its outer side wall. A stirring motor is fixedly mounted on the top of the tank body, and a feed pipe is installed on the top of the tank body. A discharge hopper is provided at the bottom of the tank body, and a discharge pipe connected to the discharge hopper is fixedly mounted on the outer wall of the discharge hopper. The interior of the tank body is divided into a stirring chamber and a deashing chamber by a partition in the middle. The output shaft of the stirring motor is equipped with a rotating shaft that passes through the stirring chamber and has its bottom end located in the deashing chamber. A separation component is provided inside the deashing chamber.
[0008] Furthermore, two sets of stirring frames are fixedly installed on the periphery of the rotating shaft inside the stirring chamber, and four feeding pipes connected to the partition between the stirring chamber and the deashing chamber are provided, with a first solenoid valve installed on the feeding pipe.
[0009] Furthermore, a filter box is installed on the discharge pipe, and multiple layers of filter screens are arranged inside the filter box. A second solenoid valve is provided at one end of the discharge pipe near the discharge port.
[0010] Furthermore, servo motors are fixedly installed on the top of the three support legs, a lifting ring is installed around the discharge bin, and three lifting blocks are installed on the outer side of the lifting ring.
[0011] Furthermore, the inner sides of the three support legs are provided with lifting grooves that slide with the lifting blocks, and the output shaft of the servo motor is equipped with a screw that passes through the lifting groove, and the screw is threadedly engaged with the lifting block in the lifting groove.
[0012] Furthermore, the separation assembly includes a dispersion cylinder installed at the bottom end of the rotating shaft and located within the deashing chamber, a separation plate installed at the opening above the discharge hopper, and a separation cylinder installed above the separation plate. Both the separation plate and the separation cylinder are provided with multiple filter holes.
[0013] Furthermore, the separation cylinder is located between the inner wall of the deashing chamber and the outer wall of the dispersion cylinder. The upper part of the dispersion cylinder is conical, and the outer wall of the dispersion cylinder is provided with multiple guide grooves. A baffle ring is installed above the lifting ring.
[0014] Furthermore, an annular groove is provided above the separation plate to cooperate with the separation cylinder, and four mounting grooves are provided inside the annular groove. Four mounting blocks that cooperate with the mounting grooves are installed at the bottom of the separation cylinder.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. This utility model effectively solves the problem of rapid accumulation and uneven distribution of cleaning oil after it enters the deashing chamber by using the conical structure of the dispersion cylinder and the design of the guide groove. This allows the cleaning oil to be evenly dispersed in the deashing chamber, making full use of the separation space. The dual filtration of the separation cylinder and separation plate in the separation component, combined with the secondary filtration of the multi-layer filter screen in the filter box on the discharge pipe, forms a multi-stage separation system, which enhances the interception effect of ash, effectively removes ash from the cleaning oil, and improves the quality of the oil.
[0017] 2. This utility model facilitates disassembly and installation by having the mounting block at the bottom of the separation cylinder cooperate with the mounting groove in the annular groove of the separation plate; the overall structure of the device is simpler than that of a complex centrifugal separation structure, and the installation and disassembly of each component are convenient, and the replacement of vulnerable parts such as the separation cylinder and filter screen is convenient, which reduces the difficulty and time of maintenance and helps to improve the continuity of oil cleaning and ash removal operations at the dock. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of a dock cleaning and ash removal device according to the present invention;
[0019] Figure 2 This is a schematic diagram of the overall side section of a device for removing ash from oil at a dock, according to the present invention.
[0020] Figure 3 This utility model Figure 3 -Structural diagram at point A;
[0021] Figure 4 This is a schematic diagram of the connection structure of the lifting parts of the material discharge bin in this practical application;
[0022] Figure 5 This is a schematic diagram of the connection between the separation cylinder and the separation plate of this utility model.
[0023] The image shows:
[0024] 1. Tank body; 2. Support legs; 3. Agitator motor; 4. Feed pipe; 5. Discharge hopper; 6. Discharge pipe; 7. Agitator chamber; 8. Ash removal chamber; 9. Rotating shaft; 10. Separation assembly; 101. Dispersion cylinder; 102. Separation plate; 103. Separation cylinder; 104. Guide channel; 105. Baffle ring; 106. Annular groove; 107. Mounting groove; 108. Mounting block; 11. Agitator frame; 12. Feed pipe; 13. First solenoid valve; 14. Filter box; 15. Filter screen; 16. Second solenoid valve; 17. Servo motor; 18. Lifting ring; 19. Lifting block; 20. Lifting groove; 21. Screw. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0026] Please refer to Figure 1-5 A device for removing ash from oil tanks at docks includes a tank body 1. Three support legs 2 are fixedly installed on the outer wall of the tank body 1. A stirring motor 3 is fixedly installed on the top of the tank body 1. A feed pipe 4 is installed on the top of the tank body 1. A discharge bin 5 is provided at the bottom of the tank body 1. A discharge pipe 6 connected to the discharge bin 5 is fixedly installed on the outer wall of the discharge bin 5. The interior of the tank body 1 is divided into a stirring chamber 7 and a deashing chamber 8 by a partition in the middle. The output shaft of the stirring motor 3 is equipped with a rotating shaft 9 that passes through the stirring chamber 7 and has its bottom end located in the deashing chamber 8. A separation component 10 is provided inside the deashing chamber 8.
[0027] Please refer to Figure 2 and Figure 3The rotating shaft 9 is fixedly installed on the periphery of the mixing chamber 7 with two sets of mixing frames 11. Four feeding pipes 12 are provided on the partition between the mixing chamber 7 and the deashing chamber 8 and are connected to it. A first solenoid valve 13 is installed on the feeding pipe 12. A filter box 14 is installed on the discharge pipe 6. The filter box 14 is provided with multiple layers of filter screen 15. A second solenoid valve 16 is provided at the end of the discharge pipe 6 near the discharge port.
[0028] Specifically, the cleaning oil enters the mixing chamber 7 at the top of the tank 1 through the feed pipe 4. The mixing motor 3 is started, and its output shaft drives the rotating shaft 9 to rotate. Two sets of mixing racks 11 fixed around the rotating shaft 9 thoroughly mix the cleaning oil to make the composition of the cleaning oil uniform. After the mixing is completed, the first solenoid valve 13 on the discharge pipe 12 is opened, and the cleaning oil in the mixing chamber 7 flows into the deashing chamber 8 through the four discharge pipes 12. The deashed cleaning oil is discharged through the discharge pipe 6. The multi-layer filter screen 15 in the filter box 14 on the discharge pipe 6 filters the oil again. Finally, the discharge is controlled by the second solenoid valve 16.
[0029] Please refer to Figure 4 Servo motors 17 are fixedly installed on the top of the three support legs 2. A lifting ring 18 is installed on the periphery of the discharge bin 5. Three lifting blocks 19 are installed on the outer side of the lifting ring 18. A lifting groove 20 is opened on the inner side of the three support legs 2 to slide with the lifting blocks 19. A screw 21 is installed on the output shaft of the servo motor 17, which passes through the lifting groove 20 and is threadedly engaged with the lifting blocks 19 in the lifting groove 20.
[0030] Specifically, when a certain amount of cleaning oil after ash removal accumulates in the discharge bin 5, the servo motor 17 is started. The output shaft of the servo motor 17 drives the screw 21 to rotate. The screw 21 and the lifting block 19 in the lifting groove 20 are threaded together to move the discharge bin 5 down to facilitate cleaning of the separation plate 102 and the separation cylinder 103 on the separation component 10. The three servo motors 17 are controlled by the same controller to make them rotate synchronously and at the same speed, so that the discharge bin 5 can perform stable lifting operations between the three support legs 2.
[0031] Please refer to Figure 4 and Figure 5The separation assembly 10 includes a dispersing cylinder 101 installed at the bottom of the rotating shaft 9 and located inside the deashing chamber 8. A separation plate 102 is installed at the opening above the discharge hopper 5, and a separation cylinder 103 is installed above the separation plate 102. Both the separation plate 102 and the separation cylinder 103 are provided with multiple filter holes. The separation cylinder 103 is located between the inner wall of the deashing chamber 8 and the outer wall of the dispersing cylinder 101. The upper part of the dispersing cylinder 101 is conical. Multiple guide grooves 104 are opened on the outer wall of the dispersing cylinder 101. A retaining ring 105 is installed above the lifting ring 18. An annular groove 106 that cooperates with the separation cylinder 103 is opened above the separation plate 102. Four mounting grooves 107 are opened inside the annular groove 106. Four mounting blocks 108 that cooperate with the mounting grooves 107 are installed at the bottom of the separation cylinder 103.
[0032] Specifically, after the cleaning oil enters the deashing chamber 8, it comes into contact with the dispersion cylinder 101 at the bottom of the rotating shaft 9. The dispersion cylinder 101 is cone-shaped at the top, and a guide groove 104 is opened on its outer wall. When the rotating shaft 9 rotates, the cleaning oil is guided by the guide groove 104 and dispersed along the outer wall of the dispersion cylinder 101 to reduce accumulation at the bottom. The dispersed cleaning oil enters the annular space between the separation cylinder 103 and the inner wall of the deashing chamber 8. Both the separation cylinder 103 and the separation plate 102 are provided with multiple filter holes. The cleaning oil passes through the filter holes under the action of gravity, and the ash is intercepted on the separation cylinder 103 and the separation plate 102, realizing the separation of the cleaning oil and the ash. The deashed cleaning oil passes through the separation plate 102 and enters the discharge hopper 5.
[0033] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.
Claims
1. A device for removing ash from oil tanks at docks, comprising a tank (1), characterized in that: The outer side wall of the tank (1) is fixedly equipped with three support legs (2), the top of the tank (1) is fixedly equipped with a stirring motor (3), the top of the tank (1) is equipped with a feed pipe (4), the bottom of the tank (1) is provided with a discharge hopper (5), the outer wall of the discharge hopper (5) is fixedly equipped with a discharge pipe (6) connected to it, the interior of the tank (1) is divided into a stirring chamber (7) and a deashing chamber (8) by a partition in the middle, the output shaft of the stirring motor (3) is equipped with a rotating shaft (9) that passes through the stirring chamber (7) and the bottom end is located in the deashing chamber (8), and the interior of the deashing chamber (8) is provided with a separation component (10).
2. The device for removing ash from oil tanks at docks according to claim 1, characterized in that: The rotating shaft (9) is fixedly installed with two sets of stirring racks (11) on the periphery of the stirring chamber (7). Four feeding pipes (12) connected to the partition between the stirring chamber (7) and the deashing chamber (8) are provided. A first solenoid valve (13) is installed on the feeding pipe (12).
3. The device for removing ash from oil tanks at a dock according to claim 2, characterized in that: The discharge pipe (6) is equipped with a filter box (14), and the filter box (14) is provided with multiple layers of filter screens (15). A second solenoid valve (16) is provided at one end of the discharge pipe (6) near the discharge port.
4. The device for removing ash from oil tanks at docks according to claim 3, characterized in that: Servo motors (17) are fixedly installed on the top of the three support legs (2), and lifting rings (18) are installed on the periphery of the discharge bin (5). Three lifting blocks (19) are installed on the outer side of the lifting rings (18).
5. The device for removing ash from oil tanks at a dock according to claim 4, characterized in that: The inner sides of the three support legs (2) are provided with lifting grooves (20) that slide with the lifting block (19). The output shaft of the servo motor (17) is equipped with a screw (21) that passes through the lifting groove (20) and the screw (21) is threadedly engaged with the lifting block (19) in the lifting groove (20).
6. The device for removing ash from oil tanks at docks according to claim 5, characterized in that: The separation assembly (10) includes a dispersion cylinder (101) installed at the bottom of the rotating shaft (9) and located in the deashing chamber (8). A separation plate (102) is installed at the opening above the discharge bin (5). A separation cylinder (103) is installed above the separation plate (102). Both the separation plate (102) and the separation cylinder (103) are provided with multiple filter holes.
7. The device for removing ash from oil tanks at docks according to claim 6, characterized in that: The separation cylinder (103) is located between the inner wall of the deashing chamber (8) and the outer wall of the dispersion cylinder (101). The upper part of the dispersion cylinder (101) is conical. The outer wall of the dispersion cylinder (101) is provided with multiple guide grooves (104). A baffle ring (105) is installed above the lifting ring (18).
8. The device for removing ash from oil tanks at a dock according to claim 7, characterized in that: The separation plate (102) has an annular groove (106) above it that cooperates with the separation cylinder (103). The annular groove (106) has four mounting grooves (107) inside it. The bottom of the separation cylinder (103) is equipped with four mounting blocks (108) that cooperate with the mounting grooves (107).