Fischer-Tropsch wax filter

Abstract

The invention provides a Fischer-Tropsch wax filter which comprises a rotating device, a machine body, a main shaft, a filter part and a feeding inner part, a feeding pipe is arranged at the bottom of the machine body, the main shaft is located in the machine body, a discharging pipe extending out of the machine body is arranged at the bottom of the main shaft, the filter part is arranged on the periphery of the main shaft, the feeding inner part is located in the machine body, and the feeding inner part covers a port of the feeding pipe. The rotating device is used for driving the spindle to rotate. According to the Fischer-Tropsch wax filter disclosed by the invention, a Fischer-Tropsch wax filtering process is realized, and clear filtrate is obtained; after filtering, filter residues on the filtering piece can be thrown out, and the filtering effect is kept; according to the Fischer-Tropsch wax filter disclosed by the utility model, the feeding inner part has a shunting effect on the to-be-filtered liquid in the feeding pipe, so that the to-be-filtered liquid is more uniformly distributed in the machine body, the blockage caused by accumulation of a catalyst and a solid in wax liquid is prevented, the large-scale Fischer-Tropsch wax filtering treatment is met, the filtering precision and the filtering capacity are relatively high, the maintenance frequency is reduced, and the cost of spare part loss is further reduced.

Description

Technical Field

[0001] The invention relates to the technical field of Fischer-Tropsch wax filtration, and in particular to a Fischer-Tropsch wax filter. Background Art

[0002] The Fischer-Tropsch wax filter is a highly efficient, energy-saving, and closed-operation solid-liquid separation device. The main principle of the Fischer-Tropsch wax filter is that the filtrate passes through the filter disc and finally flows out from the discharge port to obtain a clear filtrate. However, in the large-scale (e.g., million-ton) Fischer-Tropsch wax filtration process, the Fischer-Tropsch wax filter in the prior art is prone to uneven feed distribution, which in turn leads to clogging of the filter disc, poor filtration effect, and increased maintenance frequency and production costs. Summary of the invention

[0003] The main purpose of the present invention is to provide a Fischer-Tropsch wax filter to solve at least one of the technical problems of the prior art Fischer-Tropsch wax filter, such as uneven feed distribution, easy clogging of the filter disc, and poor filtering effect.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a Fischer-Tropsch wax filter, including a rotating device, a body, a main shaft, a filter element, and a feed internal component. A feed pipe is provided at the bottom of the body, the main shaft is located in the body, and a discharge pipe extending to the outside of the body is provided at the bottom of the main shaft. The filter element is arranged on the outer periphery of the main shaft, the feed internal component is located in the body, and the feed internal component covers the port arranged on the feed pipe. The rotating device is used to drive the main shaft to rotate.

[0005] Furthermore, the feed internal part includes an outer frame portion, a blade portion and a central portion, and a plurality of the blade portions are distributed in a circular array, the outer sides of the blade portions are connected to the outer frame portion, the inner sides of the blade portions are connected to the central portion, and diversion channels are formed between adjacent blade portions.

[0006] Furthermore, one side of the blade portion along the circumferential direction is arranged close to the feed pipe, and the other side is arranged away from the feed pipe, so that the diversion channel faces different directions.

[0007] Furthermore, the rotating device is a motor.

[0008] Furthermore, the filter element is a filter disc or a filter tube.

[0009] Furthermore, the machine body comprises an upper head and a machine body, the top of the machine body is provided with an opening, and the upper head is sealingly arranged at the opening.

[0010] Furthermore, it also includes a slag discharge mechanism, a slag discharge port is provided at the bottom of the machine body, and the slag discharge mechanism is movably connected to the machine body and is sealed at the slag discharge port.

[0011] Furthermore, the central axis of the outer frame is arranged at a preset angle with the horizontal plane.

[0012] Furthermore, the feed pipe, the discharge pipe and the feed internal component are located on the same horizontal plane.

[0013] Furthermore, a vent is provided on the top of the machine body.

[0014] The Fischer-Tropsch wax filter of the present invention is filled with the liquid to be filtered through the feed pipe, so that the liquid to be filtered is filtered by the filter element to obtain the filtrate, the filtrate enters the inner cavity of the main shaft, and flows out from the discharge pipe, thereby realizing the Fischer-Tropsch wax filtering process and obtaining a clear filtrate; after filtering, the main shaft can be driven to rotate by the rotating device, so that the filter residue on the filter element can be thrown out by the centrifugal force to facilitate the next filtration and maintain a good filtering effect; the port of the feed pipe is covered with a feed inner part, which plays a diversion role for the liquid to be filtered in the feed pipe, avoiding the liquid to be filtered from being concentrated on the side close to the feed pipe, and making the liquid to be filtered more evenly distributed in the machine body, preventing the catalyst and solid accumulation in the wax liquid from clogging the filter element, and being able to meet the large-scale Fischer-Tropsch wax filtering treatment, with high filtering accuracy and filtering capacity, and being able to meet the full load operation requirements of the wax liquid with heavy wax iron content greater than 200ppm, thereby reducing the maintenance frequency and the cost of spare parts loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 A schematic diagram of the structure of a Fischer-Tropsch wax filter provided in an embodiment of the present invention;

[0017] Figure 2 A first structural schematic diagram of a feed internal component provided in an embodiment of the present invention;

[0018] Figure 3 The second structural schematic diagram of the feed internals provided in the embodiment of the present invention.

[0019] The above drawings include the following reference numerals:

[0020] 1. Rotating device; 2. Machine body; 21. Feed pipe; 22. Upper head; 23. Machine body; 24. Slag discharge port; 3. Main shaft; 31. Discharge pipe; 4. Filter element; 5. Feed internal parts; 51. Outer frame; 52. Blade part; 53. Central part; 54. Diversion channel; 6. Slag discharge mechanism. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0023] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0024] The present invention provides a Fischer-Tropsch wax filter, comprising a rotating device 1, a body 2, a main shaft 3, a filter element 4, and a feed internal component 5. A feed pipe 21 is provided at the bottom of the body 2, the main shaft 3 is located in the body 2, and a discharge pipe 31 extending to the outside of the body 2 is provided at the bottom of the main shaft 3. The filter element 4 is arranged on the outer periphery of the main shaft 3, the feed internal component 5 is located in the body 2, and the feed internal component 5 covers a port arranged on the feed pipe 21. The rotating device 1 is used to drive the main shaft 3 to rotate.

[0025] Combination Figure 1As shown, the rotating device 1 can drive the main shaft 3 to rotate when needed (after filtration, the filter residue can be thrown out by the centrifugal force of rotation and fall into the bottom of the body 2 for collection and discharge), and a feed pipe 21 is provided at the bottom of the body 2 to fill the liquid to be filtered into the body 2. The feed internal component 5 covers the port of the feed pipe 21, so that the liquid to be filtered passing through the feed pipe 21 will be affected by the diversion effect of the feed internal component 5, so that the liquid to be filtered is more evenly distributed in the body 2, and a discharge pipe 31 is provided at the bottom of the main shaft 3. The discharge pipe 31 extends outward through the body 2, and the filter element 4 is arranged on the periphery of the main shaft 3 to filter the liquid to be filtered.

[0026] Combine the following Figure 1 The figure shows the process of Fischer-Tropsch wax filtration: the liquid to be filtered flows through the feed pipe 21 through the feed inner part 5 into the body 2, and the feed inner part 5 plays a certain diversion role for the liquid to be filtered, so that the liquid to be filtered is evenly distributed in the body 2, and the liquid level of the liquid to be filtered gradually rises evenly, so that it is filtered through the filter element 4. The top of the main shaft 3 is usually provided with an opening or a channel to allow the filtered filtrate to enter the inner cavity of the main shaft 3. After the filtrate passes through the inner cavity of the main shaft 3, it flows out from the discharge pipe 31 to obtain a clear filtrate. After the filtration is completed, the main shaft 3 can be driven to rotate at a high speed by the rotating device 1, and the filter residue on the filter element 4 is unloaded under the action of centrifugal force.

[0027] The Fischer-Tropsch wax filter of the present invention is filled with the liquid to be filtered through the feed pipe 21, so that the liquid to be filtered is filtered by the filter element 4 to obtain the filtrate, the filtrate enters the inner cavity of the main shaft 3, and flows out from the discharge pipe 31, realizing the Fischer-Tropsch wax filtering process and obtaining a clear filtrate; after filtering, the main shaft 3 can also be driven to rotate by the rotating device 1, so that the filter residue on the filter element 4 can be thrown out by centrifugal force to facilitate the next filtration and maintain a good filtering effect; the feed inner part 5 is covered at the port of the feed pipe 21, and the feed inner part 5 plays a diversion role for the liquid to be filtered in the feed pipe 21, avoiding the liquid to be filtered from being concentrated on the side close to the feed pipe 21, and making the liquid to be filtered more evenly distributed in the machine body 2, preventing the catalyst and solid accumulation in the wax liquid from clogging the filter element 4, and being able to meet the large-scale Fischer-Tropsch wax filtering treatment, with high filtering accuracy and filtering capacity, and being able to meet the full load operation requirements of the wax liquid with heavy wax iron content greater than 200ppm, reducing the maintenance frequency, and thus reducing the cost of spare parts loss.

[0028] Furthermore, the feed internal part 5 includes an outer frame portion 51, a blade portion 52 and a central portion 53, and a plurality of the blade portions 52 are distributed in a circular array, the outer sides of the blade portions 52 are connected to the outer frame portion 51, and the inner sides of the blade portions 52 are connected to the central portion 53, and a diversion channel 54 is formed between adjacent blade portions.

[0029] Combination Figure 1 and Figure 2 As shown, the outer frame portion 51 of the feed inner component 5 is annular, and plays a role in installing and fixing the overall structure. It can be detachably connected to the body 2 through the outer frame portion 51. Here, it can be installed by means of, for example, snap-on, screw-on, etc., and the feed inner component 5 as a whole covers the port of the feed pipe 21. The outer frame portion 51 and the central portion 53 both play a role in connecting the blade portion 52 and increasing the stability of the structure (the outer frame portion 51 and the central portion 53 are respectively connected to the blade portion 52 in an integral manner, or by welding, snap-on, etc.), the shape of the blade portion 52 can be designed as needed, and a diversion channel 54 is formed between adjacent blade portions 52 for the filtered liquid to flow through. The blade portion 52 can refer to the fan blade structure commonly seen in life, which drives the flow of air through the active rotation of the fan blades. Corresponding to the present embodiment, the blade portion 52 is relatively stationary, and the liquid to be filtered flows along the feed pipe 21, and then enters the diversion channel 54. The blade portion 52 is equivalent to playing a guiding role for the liquid to be filtered. Since the multiple blade portions 52 are distributed in a circular array, the directions of each diversion channel 54 are different, thereby being able to divert the entire liquid to be filtered.

[0030] In this way, it is connected to the body 2 through the outer frame part 51, and the outer frame part 51 and the central part 53 play a role in fixing the blade part 52. The adjacent blade parts 52 form diversion channels 54 with different directions, so that the liquid to be filtered continues to flow into the body 2 in different directions after passing through the diversion channel 54 (i.e., diversion effect), so that the liquid to be filtered is more evenly distributed in the body 2, which is conducive to the filter element 4 to play a better filtering role, reduces the risk of clogging of the filter element 4, and is more suitable for large-scale Fischer-Tropsch wax filtration treatment.

[0031] Furthermore, one side of the blade portion 52 along the circumferential direction is arranged close to the feed pipe 21, and the other side is arranged away from the feed pipe 21, so that the diversion channel faces different directions.

[0032] Combination Figures 1 to 3 As shown, the feeding inner member 5 is similar to a disc structure as a whole, and its circumferential direction is the circumferential direction of the outer frame portion 51, that is, the distribution direction of the annular array of blade portions 52. Figure 2 The concepts of clockwise and counterclockwise are described from the perspective of the feed internal 5. Figure 3 It can be seen that the clockwise side of the blade portion 52 is arranged close to the feed pipe 21, and the other side (i.e. the counterclockwise side) is arranged close to and away from the feed pipe 21. The surface of the blade portion 52 can be an inclined plane or a curved surface. Figure 3 The one-way arrows are used to show the different flow directions of the filtered liquid after passing through the three branch channels 54. The specific size and direction of the blade part 52 can be designed according to needs and are not limited here.

[0033] In this way, the liquid to be filtered first contacts the side of the blade portion 52 circumferentially close to the feed pipe 21, enters the diversion channel 54 and is guided, and finally flows out from the side of the blade portion 52 circumferentially away from the feed pipe 21, so that the liquid to be filtered in the feed pipe 21 is diverted by the feed internal component 5 to form a vortex. This vortex-like flow makes the liquid to be filtered more evenly distributed in the machine body 2.

[0034] Preferably, the rotating device 1 is a motor, so that the main shaft 3 can be driven by the motor to rotate at a high speed, thereby improving the efficiency of unloading the filter residue.

[0035] Preferably, the filter element 4 is a filter disc or a filter tube.

[0036] Combination Figure 1 As shown, in this embodiment, a multi-layer filter disc is used as a filter element, which has a good filtering effect. At the same time, the filtered residue can be removed by centrifugal force, which is more convenient. The filter tube is also an optional filter element 4, which is not specifically limited here, and the corresponding filter element 4 can be selected according to needs.

[0037] Furthermore, the machine body 2 includes an upper head 22 and a machine body 23. The top of the machine body 23 is provided with an opening, and the upper head 22 is sealed and arranged at the opening.

[0038] Combination Figure 1 As shown, the machine body 23 is generally cylindrical in shape, with an opening at the top, and the upper head 22 is sealed at the opening to seal the top of the machine body 23. In this way, the upper head 22 plays a sealing role for the machine body 23.

[0039] Preferably, a slag discharge mechanism 6 is further included. A slag discharge port 24 is provided at the bottom of the machine body 2 . The slag discharge mechanism 6 is movably connected to the machine body 2 so as to be sealed at the slag discharge port 24 .

[0040] Combination Figure 1 As shown, the slag discharge mechanism 6 is movably connected to the body 2 by means of, for example, a connecting rod, a hinge, etc. During the filtering process, the slag discharge mechanism 6 is sealed and arranged at the slag discharge port 24. When the filter residue on the filter element 4 needs to be discharged after the filtering is completed, the slag discharge mechanism 6 is opened to expose the slag discharge port 24, so that the filter residue is discharged through the slag discharge port 24.

[0041] Furthermore, the central axis of the outer frame portion 51 is arranged at a preset angle with the horizontal plane.

[0042] Combination Figure 1As shown, the central axis and the horizontal line of the outer frame portion 51 are both shown in the figure. The horizontal line is a straight line in the horizontal plane. It can be seen from the figure that there is a preset angle θ between the central axis of the outer frame portion 51 and the horizontal plane. Preferably, the preset angle θ=35°~55°.

[0043] In this way, by setting the central axis of the outer frame 51 at a preset angle with the horizontal plane, the liquid to be filtered can be distributed more evenly after entering the body 2 .

[0044] Furthermore, the feed pipe 21, the discharge pipe 31 and the feed internal component 5 are located on the same horizontal plane.

[0045] Combination Figure 1 As shown, the center of the feed pipe 21, the center of the discharge pipe 31 and the center of the feed internal component 5 are all on the same horizontal plane. The filtered liquid passes through the feed pipe 21 and flows through the feed internal component 5 into the machine body 2, and finally flows out from the discharge pipe 31 after being filtered.

[0046] In this way, the liquid to be filtered can flow and distribute in different directions after passing through the feed internals 5, which is conducive to a more uniform distribution of the liquid to be filtered.

[0047] Furthermore, a vent is provided on the top of the machine body 2.

[0048] Specifically, the machine body 2 includes an upper head 22 and a machine body 23. The upper head 22 is located at the top of the machine body 23, that is, the upper head 22 is the top of the machine body 2. A vent is provided on the upper head 22 to discharge the air in the machine body 2 to balance the air pressure.

[0049] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0050] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0051] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A Fischer-Tropsch wax filter, characterized in that: It includes a rotating device, a body, a main shaft, a filter, and a feed internal component. A feed pipe is provided at the bottom of the body, the main shaft is located in the body, a discharge pipe extending to the outside of the body is provided at the bottom of the main shaft, the filter is arranged on the outer periphery of the main shaft, the feed internal component is located in the body, the feed internal component covers the port arranged on the feed pipe, and the rotating device is used to drive the main shaft to rotate.

2. The Fischer-Tropsch wax filter according to claim 1, characterized in that: The feed internal part includes an outer frame part, a blade part and a central part. The multiple blade parts are distributed in a ring array. The outer sides of the blade parts are connected to the outer frame part, and the inner sides of the blade parts are connected to the central part. Diversion channels are formed between adjacent blade parts.

3. The Fischer-Tropsch wax filter according to claim 2, characterized in that: One side of the blade portion along the circumferential direction is arranged close to the feed pipe, and the other side is arranged away from the feed pipe, so that the diversion channel faces different directions.

4. The Fischer-Tropsch wax filter according to claim 1, characterized in that: The rotating device is a motor.

5. The Fischer-Tropsch wax filter according to claim 1, characterized in that: The filter element is a filter disc or a filter tube.

6. The Fischer-Tropsch wax filter according to claim 1, characterized in that: The machine body comprises an upper sealing head and a machine body. An opening is arranged on the top of the machine body, and the upper sealing head is sealingly arranged at the opening.

7. The Fischer-Tropsch wax filter according to claim 1, characterized in that: It also includes a slag discharge mechanism. A slag discharge port is provided at the bottom of the machine body. The slag discharge mechanism is movably connected to the machine body and is sealed at the slag discharge port.

8. The Fischer-Tropsch wax filter according to claim 2, characterized in that: The central axis of the outer frame is arranged at a preset angle with the horizontal plane.

9. The Fischer-Tropsch wax filter according to claim 1, characterized in that: The feed pipe, the discharge pipe and the feed internal component are located on the same horizontal plane.

10. The Fischer-Tropsch wax filter according to claim 1, characterized in that: A vent is provided on the top of the machine body.

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