Fischer-Tropsch synthesis wax residue thermal desorption device

Abstract

The invention provides a Fischer-Tropsch synthesis wax residue thermal desorption device, which comprises: a pyrolysis kiln, which comprises an inner cylinder and an outer cylinder, the outer cylinder sleeves the outer side of the inner cylinder, the inner cylinder is provided with a pyrolysis cavity, the inner wall of the pyrolysis cavity is provided with a first burner so as to introduce fuel gas into the pyrolysis cavity, and a thermal insulation cavity is formed between the outer cylinder and the inner cylinder; the filter screen is arranged in the pyrolysis cavity to divide the pyrolysis cavity into a slag chamber and an air chamber in the axial direction, the axis of the filter screen coincides with the axis of the pyrolysis kiln, the slag chamber is used for containing wax residues, and oil gas generated by pyrolysis of the wax residues can enter the air chamber from the slag chamber through the filter screen; and the exhaust pipe is arranged in the heat preservation cavity and spirally surrounds the outer side wall of the inner cylinder, one end of the exhaust pipe communicates with the air chamber, and the other end of the exhaust pipe communicates with the outside. By applying the technical scheme provided by the invention, the problem that in the prior art, heat energy waste is easily generated when the wax residue generated by Fischer-Tropsch synthesis is pyrolyzed can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of Fischer-Tropsch synthesis slag wax treatment, and in particular to a Fischer-Tropsch synthesis slag wax thermal analysis device. Background Art

[0002] Fischer-Tropsch synthesis is a process that uses synthesis gas as raw material to synthesize liquid hydrocarbons or hydrocarbons under catalysts and appropriate conditions. During the Fischer-Tropsch synthesis process, a large amount of slag wax will be produced. Generally, high-temperature treatment is used to treat the slag wax. In the actual production process, most of them use high-temperature treatment to crack and incinerate the slag wax produced by the Fischer-Tropsch synthesis unit at high temperature. The tail gas produced after treatment is discharged into the atmosphere after qualified treatment. The remaining residue is generally treated by a slag cooler and then landfilled according to requirements.

[0003] In the prior art, a pyrolysis kiln is usually used to pyrolyze the slag wax. When the pyrolysis kiln is performing high-temperature pyrolysis, the temperature inside the pyrolysis kiln needs to be guaranteed to meet the pyrolysis efficiency and pyrolysis effect of the slag wax. When the slag wax is cracked at high temperature, the operating cost of the high-temperature environment is usually high. The heat exchange between the pyrolysis kiln itself and the external environment is likely to cause a waste of heat energy, and will affect the temperature inside the pyrolysis kiln, reducing the pyrolysis effect of the slag wax. Summary of the invention

[0004] The invention provides a Fischer-Tropsch synthesis slag wax thermal analysis device to solve the problem in the prior art that heat energy is easily wasted when pyrolyzing the slag wax produced by Fischer-Tropsch synthesis.

[0005] The present invention provides a Fischer-Tropsch synthesis slag wax thermal analysis device, which comprises: a pyrolysis kiln, comprising an inner cylinder and an outer cylinder, the outer cylinder is sleeved on the outer side of the inner cylinder, the inner cylinder has a pyrolysis chamber, a first burner is arranged on the inner wall of the pyrolysis chamber to introduce fuel gas into the pyrolysis chamber, and a heat preservation chamber is formed between the outer cylinder and the inner cylinder; a filter screen is arranged in the pyrolysis chamber to divide the pyrolysis chamber into a slag chamber and an air chamber along the axial direction, the axis of the filter screen coincides with the axis of the pyrolysis kiln, the slag chamber is used to accommodate the slag wax, and the oil and gas generated by the pyrolysis of the slag wax can pass through the filter screen and enter the air chamber from the slag chamber; an exhaust pipe is arranged in the heat preservation chamber, and the exhaust pipe is spirally wrapped around the outer wall of the inner cylinder, one end of the exhaust pipe is connected with the air chamber, and the other end of the exhaust pipe is connected with the outside.

[0006] Furthermore, the Fischer-Tropsch synthesis slag wax thermal analysis device also includes a first fuel pipe, which is arranged in the insulation chamber and spirally wrapped around the outer wall of the inner tube. The first fuel pipe and the exhaust pipe are arranged at intervals along the axial direction of the pyrolysis kiln. A plurality of first burners are provided, and the plurality of first burners are all connected to the first fuel pipe.

[0007] Furthermore, the Fischer-Tropsch synthesis slag wax thermal analysis device also includes a second fuel pipe, which is arranged in the pyrolysis chamber. The axis of the second fuel pipe coincides with the axis of the pyrolysis chamber. A second burner is arranged on the outer wall of the second fuel pipe, and the second burner is connected to the second fuel pipe to introduce fuel gas into the pyrolysis chamber.

[0008] Furthermore, a guide rod is provided in the pyrolysis chamber, which extends along the axial direction of the pyrolysis chamber. The filter is passed through the guide rod and moves along the guide rod in the pyrolysis chamber. The Fischer-Tropsch synthesis slag wax thermal analysis device also includes a driving member, which is connected to the filter to drive the filter to move.

[0009] Furthermore, the filter includes: a main body, which is used to filter the residual wax, and a stop structure is provided between the main body and the inner cylinder; a connecting plate, which is fixedly arranged on the main body, the connecting plate has a connecting hole, the connecting hole is sleeved on the guide rod, and a threaded structure is provided between the connecting hole and the guide rod, the driving end of the driving member is connected to the guide rod to drive the guide rod to rotate, and the guide rod drives the filter to move through the threaded structure.

[0010] Furthermore, the second fuel pipe includes two relatively arranged delivery pipes with a gap therebetween, the guide rod is arranged between the two delivery pipes, two guide holes are arranged on the connecting plate, the two guide holes are arranged one-to-one corresponding to the two delivery pipes, and the delivery pipes are passed through the guide holes.

[0011] Furthermore, a guide groove is provided on the side wall of the inner tube, the guide groove extends along the axial direction of the inner tube, a guide block is provided on the side wall of the body, the guide block is movably arranged in the guide groove, and the guide block cooperates with the guide groove to form a rotation-stopping structure.

[0012] Furthermore, a plurality of clamping blocks and a plurality of elastic members are arranged in the guide groove, and the plurality of clamping blocks are arranged in sequence along the extension direction of the guide groove, and two adjacent clamping blocks abut against each other. The elastic member is arranged between the clamping block and the bottom of the guide groove, and the plurality of elastic members and the plurality of clamping blocks are arranged in a one-to-one correspondence. The elastic member is used to provide an elastic force to the clamping block away from the guide groove. A guide slope is arranged on the side wall of the guide block. When the filter moves in the pyrolysis chamber, the guide block can drive the clamping block to move toward the bottom of the guide groove through the guide slope.

[0013] Furthermore, the Fischer-Tropsch synthesis slag wax thermal analysis device also includes: a base; a support frame, the support frame is arranged on the base, the pyrolysis kiln is horizontally arranged on the support frame, and both ends of the pyrolysis kiln are rotatably connected to the support frame; a drive motor, the drive motor is arranged on the base, and the drive motor is connected to the pyrolysis kiln to drive the pyrolysis kiln to rotate.

[0014] Furthermore, the Fischer-Tropsch synthesis slag wax thermal analysis device also includes an end cover, which is arranged at the ends of the inner cylinder and the outer cylinder and is located on the side of the filter screen close to the slag chamber. The end cover is rotatably connected to the support frame, and a feed port and a discharge port are arranged on the end cover.

[0015] By applying the technical solution of the present invention, after the slag wax produced by Fischer-Tropsch synthesis is loaded into the slag chamber, the first burner introduces fuel gas into the pyrolysis chamber, and the slag wax can be pyrolyzed in the slag chamber to produce solid waste slag and oil gas. After being filtered by the filter, the oil gas enters the gas chamber and is discharged from the pyrolysis kiln through the exhaust pipe. In the process of oil and gas discharge, because the exhaust pipe is spirally wound around the outer wall of the inner cylinder, the high-temperature oil and gas can transfer heat to the pyrolysis chamber, reducing the heat dissipation in the pyrolysis chamber. At the same time, because the present application sets the pyrolysis kiln in the form of an inner cylinder and an outer cylinder, the heat preservation chamber formed between the inner cylinder and the outer cylinder can insulate the inner cylinder and the outer cylinder through air, reducing the efficiency of heat transfer from the inner cylinder to the outer cylinder, further reducing the heat loss of the pyrolysis kiln, making full use of the heat produced by the system, and reducing the waste removal cost. By arranging the exhaust pipe in the insulation chamber, the present application can also heat the air in the insulation chamber through the exhaust pipe, thereby increasing the temperature in the insulation chamber, further reducing the temperature gradient between the pyrolysis chamber and the external environment, reducing the heat energy waste caused by heat exchange between the pyrolysis kiln itself and the external environment, and ensuring that the temperature in the pyrolysis chamber will not be too low to affect the pyrolysis effect of the residue wax. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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:

[0017] Figure 1 A structural schematic diagram of a pyrolysis kiln provided by the present invention is shown from one perspective;

[0018] Figure 2 A structural schematic diagram of the pyrolysis kiln provided by the present invention from another perspective is shown;

[0019] Figure 3 A schematic diagram showing the structure of the exhaust pipe and the pyrolysis chamber provided by the present invention;

[0020] Figure 4 The schematic diagram of the structure of the thermal analysis device for Fischer-Tropsch slag wax provided by the present invention is shown;

[0021] Figure 5 A schematic diagram showing the structure of the guide rod provided by the present invention cooperating with the second fuel pipe;

[0022] Figure 6 A schematic structural diagram of a connecting plate provided by the present invention is shown;

[0023] Figure 7 Shows Figure 1 A partial enlarged view of point A in the middle.

[0024] The above drawings include the following reference numerals:

[0025] 100. Pyrolysis kiln;

[0026] 110, inner cylinder; 111, first burner; 112, slag chamber; 113, air chamber; 114, guide groove; 115, clamping block; 116, elastic member;

[0027] 120. Outer cylinder;

[0028] 130, end cover; 131, feed port; 132, discharge port;

[0029] 200, filter;

[0030] 210. body; 211. guide block;

[0031] 220, connecting plate; 221, connecting hole; 222, guide hole;

[0032] 300, exhaust pipe;

[0033] 400, second fuel pipe; 410, second burner; 420, delivery pipe;

[0034] 500, guide rod; 510, driving member;

[0035] 600, base; 610, support frame; 611, fixing plate; 620, driving motor. DETAILED DESCRIPTION

[0036] 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.

[0037] like Figures 1 to 4As shown, an embodiment of the present invention provides a pyrolysis device for Fischer-Tropsch synthesis slag wax, which includes a pyrolysis kiln 100, a filter 200 and an exhaust pipe 300. The pyrolysis kiln 100 includes an inner cylinder 110 and an outer cylinder 120, the outer cylinder 120 is sleeved on the outside of the inner cylinder 110, the inner cylinder 110 has a pyrolysis chamber, and a first burner 111 is arranged on the inner wall of the pyrolysis chamber to introduce fuel gas into the pyrolysis chamber, and a heat preservation chamber is formed between the outer cylinder 120 and the inner cylinder 110. The filter 200 is arranged in the pyrolysis chamber to divide the pyrolysis chamber into a slag chamber 112 and an air chamber 113 along the axial direction, the axis of the filter 200 coincides with the axis of the pyrolysis kiln 100, the slag chamber 112 is used to accommodate the slag wax, and the oil and gas generated by the pyrolysis of the slag wax can enter the air chamber 113 from the slag chamber 112 through the filter 200. The exhaust pipe 300 is disposed in the heat preservation chamber, and the exhaust pipe 300 is spirally wound around the outer wall of the inner cylinder 110 , one end of the exhaust pipe 300 is connected to the air chamber 113 , and the other end of the exhaust pipe 300 is connected to the outside.

[0038] By applying the technical solution of the present application, after the slag wax produced by Fischer-Tropsch synthesis is loaded into the slag chamber 112, the first burner 111 introduces fuel gas into the pyrolysis chamber. The slag wax can be pyrolyzed in the slag chamber 112 to produce solid waste slag and oil and gas. After being filtered by the filter 200, the oil and gas enter the gas chamber 113 and are discharged from the pyrolysis kiln 100 through the exhaust pipe 300. During the process of oil and gas discharge, because the exhaust pipe 300 is spirally wound around the outer wall of the inner cylinder 110, the high-temperature oil and gas can transfer heat to the pyrolysis chamber, reducing the heat dissipation in the pyrolysis chamber. At the same time, because the present application sets the pyrolysis kiln 100 in the form of the inner cylinder 110 and the outer cylinder 120, the insulation chamber formed between the inner cylinder 110 and the outer cylinder 120 can insulate the inner cylinder 110 and the outer cylinder 120 through air, reducing the efficiency of heat transfer from the inner cylinder 110 to the outer cylinder 120, further reducing the heat loss of the pyrolysis kiln, making the heat produced by the system fully utilized, and reducing the waste removal cost. By setting the exhaust pipe 300 in the insulation chamber, the present application can also heat the air in the insulation chamber through the exhaust pipe 300, increase the temperature in the insulation chamber, further reduce the temperature gradient between the pyrolysis chamber and the external environment, reduce the heat energy waste caused by the heat exchange between the pyrolysis kiln itself and the external environment, and ensure that the temperature in the pyrolysis chamber will not be too low to affect the pyrolysis effect of the residual wax.

[0039] Specifically, the Fischer-Tropsch synthesis slag wax thermal analysis device also includes a first fuel pipe, which is arranged in the heat preservation chamber and spirally wrapped around the outer wall of the inner tube 110. The first fuel pipe and the exhaust pipe 300 are arranged at intervals along the axial direction of the pyrolysis kiln 100. There are multiple first burners 111, which are arranged at intervals on the surface of the first fuel pipe, and the multiple first burners 111 are all connected to the first fuel pipe. There are multiple mounting holes on the side wall of the inner tube 110, and the multiple mounting holes are arranged corresponding to the multiple first burners 111, and the first burner 111 is arranged in the mounting holes. Through the above arrangement, after the first fuel pipe spirally wraps around the outer wall of the inner tube 110, the multiple first burners 111 will be arranged in a spiral shape on the side wall of the inner tube 110, which can improve the uniformity of fuel gas spraying. Furthermore, the first fuel pipe and the exhaust pipe 300 are arranged at intervals along the axial direction of the pyrolysis kiln 100, and the exhaust pipe 300 can also heat the fuel gas in the first fuel pipe, thereby improving the diffusion performance of the fuel gas and the combustion effect of the fuel gas.

[0040] Optionally, the exhaust pipe 300 may be directly connected to the air chamber 113 through the air hole.

[0041] Optionally, a connecting pipe may be provided in the air chamber 113 , one end of the connecting pipe being fixed on the filter screen 200 , and the other end of the connecting pipe being communicated with the exhaust hole.

[0042] Furthermore, the Fischer-Tropsch synthesis slag wax thermal decomposition device further includes a second fuel pipe 400, which is arranged in the pyrolysis chamber, the axis of the second fuel pipe 400 coincides with the axis of the pyrolysis chamber, and a second burner 410 is arranged on the outer wall of the second fuel pipe 400, and the second burner 410 is connected to the second fuel pipe 400 to introduce fuel gas into the pyrolysis chamber. In this way, the first burner 111 and the second burner 410 can burn the slag wax from both sides, thereby improving the pyrolysis efficiency of the slag wax.

[0043] Specifically in the present application, a guide rod 500 is also provided in the pyrolysis chamber, and the guide rod 500 extends along the axial direction of the pyrolysis chamber. The filter screen 200 is passed through the guide rod 500 and moves along the guide rod 500 in the pyrolysis chamber. The Fischer-Tropsch synthesis slag wax thermal analysis device also includes a driving member 510, and the driving member 510 is connected to the filter screen 200 to drive the filter screen 200 to move. Since the volume of the pyrolysis kiln 100 is usually large, it is difficult to clean the slag wax residue after pyrolysis, and manual assistance is usually required. Through the above-mentioned setting, the filter screen 200 can move in the pyrolysis chamber under the drive of the guide rod 500 and the driving member 510, so that after the pyrolysis is completed, the filter screen 200 can push the slag wax residue to one side of the pyrolysis kiln 100, which is convenient for cleaning the slag wax residue.

[0044] Specifically, the filter screen 200 includes a body 210 and a connecting plate 220. The body 210 is used to filter the residual wax, and there is a rotation-stopping structure between the body 210 and the inner cylinder 110. The connecting plate 220 is fixedly arranged on the body 210, and the connecting plate 220 has a connecting hole 221, which is sleeved on the guide rod 500. There is a threaded structure between the connecting hole 221 and the guide rod 500. The driving end of the driving member 510 is connected to the guide rod 500 for driving the guide rod 500 to rotate, and the guide rod 500 drives the filter screen 200 to move through the threaded structure. Through the above arrangement, when the driving member 510 drives the guide rod 500 to rotate, because there is a rotation-stopping structure between the body 210 and the inner cylinder 110, the body 210 will not rotate with the inner cylinder 110, and the filter screen 200 and the guide rod 500 are threadedly matched, and at this time, the filter screen 200 can move linearly along the guide rod 500 to realize the driving of the filter screen 200.

[0045] Specifically, the driving member 510 may be an AC asynchronous motor to increase the torque.

[0046] In other optional embodiments of the present application, a plurality of linear modules may be provided between the inner wall of the inner cylinder 110 and the filter screen 200 to drive the filter screen 200 to move.

[0047] Further, refer to Figure 5 and Figure 6 As shown, the second fuel pipe 400 includes two delivery pipes 420 arranged opposite to each other, with a gap between the two delivery pipes 420, the guide rod 500 is arranged between the two delivery pipes 420, and two guide holes 222 are arranged on the connecting plate 220, and the two guide holes 222 are arranged one-to-one with the two delivery pipes 420, and the delivery pipes 420 are penetrated in the guide holes 222. Through the above arrangement, the second fuel pipe 400 is arranged as two delivery pipes 420, which can ensure that the second fuel pipe 400 is also on the axis of the pyrolysis chamber, and the fuel gas is evenly sprayed into the pyrolysis chamber, so as to ensure the uniformity of the combustion of the second burner 410, and the two guide holes 222 arranged on the connecting plate 220 can allow the delivery pipes 420 to pass through, and will not affect the normal movement of the filter screen 200.

[0048] Specifically, the two delivery pipes 420 may be configured as round pipes or special-shaped pipes.

[0049] As shown in the figure, in the embodiment of the present application, the cross-sectional shape of the delivery pipe 420 along the vertical flow direction is an arc shape, and correspondingly, the guide hole 222 is adapted to the cross-sectional shape of the delivery pipe 420 .

[0050] In the present application, a guide groove 114 is provided on the side wall of the inner cylinder 110, and the guide groove 114 extends along the axial direction of the inner cylinder 110. A guide block 211 is provided on the side wall of the body 210, and the guide block 211 is movably provided in the guide groove 114. The guide block 211 cooperates with the guide groove 114 to form a rotation-stopping structure. Through the above arrangement, the rotation-stopping structure can cooperate with the guide rod 500 to limit the rotation of the filter screen 200 relative to the inner cylinder 110 around the axis without affecting the normal linear motion of the filter screen 200.

[0051] Specifically, a plurality of guide grooves 114 may be provided, and a plurality of guide blocks 211 may be provided correspondingly. The plurality of guide blocks 211 are provided correspondingly to the plurality of guide grooves 114 to improve the stability of the anti-rotation structure.

[0052] like Figure 7 As shown, a plurality of snap-fit ​​blocks 115 and a plurality of elastic members 116 are provided in the guide groove 114, and the plurality of snap-fit ​​blocks 115 are arranged in sequence along the extension direction of the guide groove 114, and two adjacent snap-fit ​​blocks 115 abut against each other, and the elastic member 116 is provided between the snap-fit ​​block 115 and the bottom of the guide groove 114, and the plurality of elastic members 116 are provided in a one-to-one correspondence with the plurality of snap-fit ​​blocks 115, and the elastic member 116 is used to provide an elastic force for the snap-fit ​​block 115 away from the guide groove 114, and a guide slope is provided on the side wall of the guide block 211, and when the filter screen 200 moves in the pyrolysis chamber, the guide block 211 can drive the snap-fit ​​block 115 to move toward the bottom of the guide groove 114 through the guide slope. Specifically, the clamping block 115 has a first position and a second position which are relatively arranged. When the clamping block 115 is in the first position, the clamping block 115 is located in the guide groove 114, and the clamping block 115 is flush with the notch of the guide groove 114, and the clamping block 115 will not affect the normal movement of the filter 200; when the clamping block 115 is in the second position, the clamping block 115 is located between the elastic member 116 and the guide block 211, and when the clamping block 115 is squeezed by the guide block 211 and moves toward the bottom of the guide groove 114, the clamping block 115 can be switched to the second position, and when the clamping block 115 is not squeezed by the guide block 211, the clamping block 115 can be restored to the first position under the elastic force of the elastic member 116.

[0053] Specifically, the elastic member 116 may be a spring.

[0054] When it is necessary to adjust the position of the filter 200 and push the waste residue for cleaning, it is often necessary to manually remove the waste residue temporarily. The cleaning tool may directly hit the filter 200, causing the filter 200 and the guide rod 500 to loosen, or even cause the guide rod 500 to bend. By setting the clamping block 115 and the elastic member 116, when the filter 200 moves to the position of the clamping block 115, the guide block 211 can press down the clamping block 115. At this time, the two clamping blocks 115 adjacent to the guide block 211 can clamp the position of the filter 200 to limit the swing of the filter 200 and reduce the possibility of loosening of the filter 200 and the guide rod 500.

[0055] Specifically, Figure 4 As shown, the Fischer-Tropsch synthesis slag wax thermal analysis device also includes a base 600, a support frame 610 and a drive motor 620. Among them, the support frame 610 is arranged on the base 600, the pyrolysis kiln 100 is horizontally arranged on the support frame 610, and the two ends of the pyrolysis kiln 100 are rotatably connected to the support frame 610, and the drive motor 620 is arranged on the base 600, and the drive motor 620 is connected to the pyrolysis kiln 100 to drive the pyrolysis kiln 100 to rotate. Through the above arrangement, the drive motor 620 can drive the pyrolysis kiln 100 to rotate, the slag wax can roll in the pyrolysis chamber, the pyrolysis is more sufficient, and the efficiency and effect of the pyrolysis of the Fischer-Tropsch synthesis slag wax are improved.

[0056] Furthermore, the Fischer-Tropsch synthesis slag wax thermal analysis device also includes an end cover 130, which is arranged at the end of the inner cylinder 110 and the outer cylinder 120, and is located on the side of the filter screen 200 close to the slag chamber 112, and the end cover 130 is rotatably connected to the support frame 610, and a feed port 131 and a discharge port 132 are arranged on the end cover 130. The feed port and the discharge port arranged on the end cover 130 can facilitate the feeding and discharging of the slag chamber 112. Specifically, the support frame 610 also has a fixed disk 611, which is rotatably connected to the end cover 130, and a gear is arranged on the side wall of the end cover 130, and the gear is engaged with the drive motor 620 to drive the pyrolysis kiln 100 to rotate relative to the support frame 610.

[0057] 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.

[0058] 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. Meanwhile, 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, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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 synthesis slag wax thermal analysis device, It is characterized in that The Fischer-Tropsch synthesis slag wax thermal analysis device comprises: A pyrolysis kiln (100) comprises an inner cylinder (110) and an outer cylinder (120), wherein the outer cylinder (120) is sleeved on the outer side of the inner cylinder (110), the inner cylinder (110) has a pyrolysis chamber, a first burner (111) is arranged on the inner wall of the pyrolysis chamber to introduce fuel gas into the pyrolysis chamber, and a heat preservation chamber is formed between the outer cylinder (120) and the inner cylinder (110); A filter screen (200) is arranged in the pyrolysis chamber to divide the pyrolysis chamber into a slag chamber (112) and an air chamber (113) along the axial direction. The axis of the filter screen (200) coincides with the axis of the pyrolysis kiln (100). The slag chamber (112) is used to contain slag wax. Oil and gas generated by pyrolysis of slag wax can pass through the filter screen (200) and enter the air chamber (113) from the slag chamber (112). An exhaust pipe (300) is arranged in the heat preservation chamber, and the exhaust pipe (300) is spirally wound around the outer wall of the inner cylinder (110), one end of the exhaust pipe (300) is connected to the air chamber (113), and the other end of the exhaust pipe (300) is connected to the outside.

2. The Fischer-Tropsch synthesis slag wax thermal analysis device according to claim 1, It is characterized in that The Fischer-Tropsch synthesis slag wax thermal analysis device also includes a first fuel pipe, which is arranged in the insulation chamber and spirally wrapped around the outer wall of the inner tube (110), and the first fuel pipe and the exhaust pipe (300) are arranged at intervals along the axial direction of the pyrolysis kiln (100). A plurality of first burners (111) are provided, and the plurality of first burners (111) are all connected to the first fuel pipe.

3. The Fischer-Tropsch synthesis slag wax thermal analysis device according to claim 1, It is characterized in that The Fischer-Tropsch synthesis slag wax thermal analysis device also includes a second fuel pipe (400), which is arranged in the pyrolysis chamber, and the axis of the second fuel pipe (400) coincides with the axis of the pyrolysis chamber. A second burner (410) is arranged on the outer wall of the second fuel pipe (400), and the second burner (410) is connected to the second fuel pipe (400) to introduce fuel gas into the pyrolysis chamber.

4. The Fischer-Tropsch synthesis slag wax thermal analysis device according to claim 3, It is characterized in that A guide rod (500) is also provided in the pyrolysis chamber, and the guide rod (500) extends along the axial direction of the pyrolysis chamber. The filter screen (200) is passed through the guide rod (500) and moves along the guide rod (500) in the pyrolysis chamber. The Fischer-Tropsch synthesis slag wax thermal analysis device also includes a driving member (510), and the driving member (510) is connected to the filter screen (200) to drive the filter screen (200) to move.

5. The Fischer-Tropsch synthesis slag wax thermal analysis device according to claim 4, It is characterized in that The filter screen (200) comprises: A main body (210), the main body (210) is used to filter residual wax, and a rotation-stopping structure is provided between the main body (210) and the inner cylinder (110); A connecting plate (220), wherein the connecting plate (220) is fixedly arranged on the main body (210), the connecting plate (220) has a connecting hole (221), the connecting hole (221) is sleeved on the guide rod (500), a threaded structure is provided between the connecting hole (221) and the guide rod (500), the driving end of the driving member (510) is drivingly connected to the guide rod (500) to drive the guide rod (500) to rotate, and the guide rod (500) drives the filter screen (200) to move via the threaded structure.

6. The Fischer-Tropsch slag wax thermal analysis device according to claim 5, It is characterized in that The second fuel pipe (400) comprises two delivery pipes (420) arranged opposite to each other, with a gap between the two delivery pipes (420), the guide rod (500) being arranged between the two delivery pipes (420), the connecting plate (220) being provided with two guide holes (222), the two guide holes (222) being arranged in one-to-one correspondence with the two delivery pipes (420), and the delivery pipe (420) being passed through the guide holes (222).

7. The Fischer-Tropsch synthesis slag wax thermal analysis device according to claim 5, It is characterized in that A guide groove (114) is provided on the side wall of the inner cylinder (110), and the guide groove (114) extends along the axial direction of the inner cylinder (110). A guide block (211) is provided on the side wall of the body (210), and the guide block (211) is movably arranged in the guide groove (114). The guide block (211) and the guide groove (114) cooperate to form the anti-rotation structure.

8. The Fischer-Tropsch synthesis slag wax thermal analysis device according to claim 7, It is characterized in that A plurality of clamping blocks (115) and a plurality of elastic members (116) are arranged in the guide groove (114); the plurality of clamping blocks (115) are arranged in sequence along the extension direction of the guide groove (114); two adjacent clamping blocks (115) abut against each other; the elastic member (116) is arranged between the clamping block (115) and the bottom of the guide groove (114); the plurality of elastic members (116) and the plurality of clamping blocks (115) are arranged in a one-to-one correspondence; the elastic member (116) is used to provide an elastic force for the clamping block (115) to move away from the guide groove (114); a guide slope is arranged on the side wall of the guide block (211); when the filter screen (200) moves in the pyrolysis chamber, the guide block (211) can drive the clamping block (115) to move in the direction of the bottom of the guide groove (114) through the guide slope.

9. The Fischer-Tropsch synthesis slag wax thermal analysis device according to claim 1, It is characterized in that The Fischer-Tropsch synthesis slag wax thermal analysis device also includes: Base(600); A support frame (610), wherein the support frame (610) is arranged on the base (600), the pyrolysis kiln (100) is horizontally arranged on the support frame (610), and both ends of the pyrolysis kiln (100) are rotatably connected to the support frame (610); A driving motor (620), wherein the driving motor (620) is disposed on the base (600), and the driving motor (620) is drivingly connected to the pyrolysis kiln (100) to drive the pyrolysis kiln (100) to rotate.

10. The Fischer-Tropsch synthesis slag wax thermal analysis device according to claim 9, It is characterized in that The Fischer-Tropsch synthesis slag wax thermal analysis device also includes an end cover (130), which is arranged at the ends of the inner cylinder (110) and the outer cylinder (120), and is located on the side of the filter screen (200) close to the slag chamber (112), and the end cover (130) is rotatably connected to the support frame (610), and the end cover (130) is provided with a feed port (131) and a discharge port (132).

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