Raw material pretreatment device for chemical catalytic reforming

Abstract

The invention discloses a raw material pretreatment device for chemical catalytic reforming, and belongs to the technical field of chemical catalytic reforming, the raw material pretreatment device comprises a stirring box, a batching box is fixedly mounted at the top of the stirring box, two isolation plates are mounted on the inner wall of the batching box, and a plurality of material supplementing pipes are mounted on one side of the batching box; a water inlet pipe is mounted on one side of the stirring box, a water outlet pipe is mounted on one side of the stirring box, and four symmetrically-arranged supporting legs are fixedly mounted at the bottom of the stirring box. Raw materials in the stirring box are extracted through the pump body and act in the positioning pipe, so that the raw materials in the stirring box circularly flow from top to bottom, and finally the positioning pipe and the stirring blades are driven to rotate through impact of the drainage holes in the drainage pipe, so that the raw materials in the stirring box can be stirred, and rapid reaction pretreatment is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of chemical catalytic reforming, and in particular relates to a raw material pretreatment device for chemical catalytic reforming. Background Art

[0002] Chemical catalytic reforming refers to the process of chemically reacting light naphtha (mainly straight-chain alkanes and cycloalkanes) and other raw materials under the action of a catalyst to convert them into high-octane gasoline components rich in aromatics or provide raw materials for the production of aromatics (such as benzene, toluene, xylene, etc.). Catalytic reforming can significantly improve the quality of gasoline and is also an important way to obtain aromatics. The raw materials for catalytic reforming need to be processed by a pretreatment device to remove impurities such as sulfides, nitrides, heavy metals, and water, and adjust the composition and properties of the raw materials to meet the requirements of the catalytic reforming reaction;

[0003] When the existing chemical raw materials are pretreated, sulfides, nitrides, heavy metals, etc. are generally treated in separate steps and equipment, which is relatively cumbersome. In addition, when the reaction is stirred, it is usually stirred directly by a stirring rod. In this process, the liquid in the raw material is generally mixed locally under the action of the stirring rod, or the same layer of liquid reacts with the reactant, which is inefficient.

[0004] In order to solve the above problems, the present application proposes a raw material pretreatment device for chemical catalytic reforming. Summary of the invention

[0005] In view of the problems in the related art, the present invention proposes a raw material pretreatment device for chemical catalytic reforming to overcome the above-mentioned technical problems existing in the existing related art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A raw material pretreatment device for chemical catalytic reforming, comprising a mixing box, a batching box is fixedly installed on the top of the mixing box, two isolation plates are installed on the inner wall of the batching box, a plurality of feeding pipes are installed on one side of the batching box, a water inlet pipe is installed on one side of the mixing box, a water outlet pipe is installed on one side of the mixing box, and four symmetrically arranged supporting legs are fixedly installed on the bottom of the mixing box;

[0008] A pump body is installed on the other side of the mixing box, a suction pipe is installed at the bottom of the pump body, one end of the suction pipe is connected to the mixing box, a conduit is installed on one side of the pump body, one end of the conduit extends into the mixing box, and a conversion box is installed;

[0009] The umbrella-shaped filter cover is fixedly mounted on the inner wall of the mixing box and cooperates with the water inlet pipe.

[0010] The stirring mechanism comprises a positioning tube, the positioning tube is rotatably mounted on the conversion box, the positioning tube is rotatably connected to the inner wall of the stirring box, and the positioning tube is drivingly connected to the guide tube;

[0011] The discharge mechanism comprises a discharge pipe, the discharge pipe is movably mounted on the batching box, a transmission rod is rotatably connected to the inner wall of one side of the mixing box, the transmission rod is transmission-connected to the discharge pipe, and the transmission rod is transmission-connected to the positioning pipe;

[0012] The cleaning component comprises three scrapers which are arranged on the stirring mechanism and fit with the inner wall of the stirring box.

[0013] Preferably, the stirring mechanism further comprises a plurality of drain pipes, the plurality of drain pipes are fixedly mounted on the positioning pipe, a plurality of drain holes are opened on the side of the drain pipe, and a stirring blade is installed at the bottom of the drain pipe.

[0014] The water source on the positioning pipe enters into multiple drainage pipes and is discharged through multiple drainage holes. At the same time, when the water source is discharged through the drainage holes, the impact force with the water source in the mixing box reacts to the drainage pipe, thereby pushing the drainage pipe and the positioning pipe to rotate.

[0015] Preferably, a connecting hole is provided on the positioning tube, the connecting hole is located in the conversion box, and the connecting hole cooperates with the conduit.

[0016] The water source in the conduit is introduced into the conversion box and injected into the positioning tube through the connecting hole. Meanwhile, the positioning tube is connected to the conversion box by rotation, and a rotational communication is formed between the positioning tube and the conduit.

[0017] Preferably, the discharge mechanism also includes a fixed tube, the fixed tube is fixedly mounted on the inner wall of the batching box, the discharge tube is movably mounted on the inner wall of the fixed tube, three guide holes are opened on the fixed tube, and the three guide holes are staggered at an interval of 120 degrees, and three feed holes are opened on the discharge tube, and the guide holes cooperate with the corresponding feed holes.

[0018] The reactants in the batching box are discharged through the guide holes on the fixed tube. When the feed hole on the discharge tube coincides with the guide hole, the reactants in the guide hole are introduced into the discharge tube through the feed hole, and then discharged through the opening below the discharge tube. At the same time, the guide holes are staggered at intervals of 120 degrees, so that the discharge tube can be rotated to different directions for discharge, and thus the reaction treatment can be carried out according to different procedures.

[0019] Preferably, three material guide plates are installed on the inner wall of the ingredient box, the material guide plates are located below the corresponding guide holes, the top end of the discharge pipe is rotatably connected to a top plate, the top plate is threadedly connected to a screw, and the screw is rotatably connected to the ingredient box.

[0020] The setting of the guide plate can facilitate the concentration of the reactants in the batching box and the introduction of them into the guide hole. At the same time, the screw is connected to the top plate through a thread, and the discharge pipe is movably connected to the fixed pipe, so that the top plate can be limited, thereby driving the top plate to rise and fall, and then the height of the discharge pipe can be adjusted, which is convenient for adjusting the overlap between the feed hole and the guide hole, thereby adjusting the amount of reactant added.

[0021] Preferably, the cleaning assembly further comprises a connecting pipe, the connecting pipe is slidably mounted on a corresponding drain pipe, the connecting pipe and the drain pipe are communicated with each other, and the scraper is fixedly connected to three connecting pipes in the same vertical direction.

[0022] The connecting pipe is connected to the drain pipe by sliding, so that the water pressure in the drain pipe acts on the connecting pipe and pushes the connecting pipe, so that the connecting pipe pushes the scraper and the scraper contacts the inner wall of the mixing box.

[0023] Preferably, a fixing rod is fixedly installed on the positioning tube, a scraper rod is fixedly installed on the bottom end of the fixing rod, the scraper rod is in contact with the umbrella-shaped filter cover, a collecting box is installed on one side of the stirring box, the collecting box is connected with the stirring box, and the collecting box cooperates with the umbrella-shaped filter cover.

[0024] The setting of the umbrella-shaped filter cover can facilitate the preliminary filtration of the incoming raw materials. At the same time, the rotating positioning tube drives the scraper rod to rotate through the fixed rod. The scraper rod cleans and scrapes the particulate impurities filtered out from the umbrella-shaped filter cover and collects them through the collection box.

[0025] Preferably, a transmission rod is rotatably connected to an inner wall of one side of the mixing box, a first bevel gear is fixedly mounted on the positioning tube, a second bevel gear is fixedly mounted on the transmission rod, and the first bevel gear and the second bevel gear are meshed with each other.

[0026] The rotating positioning tube can drive the transmission rod to rotate through the mutual meshing of the first bevel gear and the second bevel gear.

[0027] Preferably, a worm is fixedly mounted on the transmission rod, a worm wheel is slidably connected to the bottom end of the discharge pipe, and the worm and the worm wheel are meshed with each other.

[0028] The rotating transmission rod can drive the worm wheel to rotate through the mutual meshing of the worm and the worm wheel, and the rotating worm wheel can drive the discharge pipe to rotate through the vertical sliding connection with the discharge pipe.

[0029] Preferably, a fixing box and a positioning box are rotatably connected to the transmission rod, the fixing box is rotatably connected to the positioning tube, the positioning box is movably connected to the discharge tube, and the worm gear is rotatably mounted on the inner wall of the positioning box.

[0030] The fixing box is connected to the driving rod and the positioning tube through rotation, so that the meshing state of the first bevel gear and the second bevel gear can be stabilized. Meanwhile, the positioning box is connected to the driving rod and the discharge tube, so that the meshing state of the worm and the worm wheel can be stabilized.

[0031] In summary, the technical effects and advantages of the present invention are as follows:

[0032] The raw materials in the mixing box are extracted through the pump body and act on the positioning tube, so that the raw materials in the mixing box circulate from top to bottom, and finally impacted by the drainage holes on the drainage pipe, thereby driving the positioning tube and the mixing blades to rotate, thereby stirring the raw materials in the mixing box, which is convenient for rapid reaction pretreatment.

[0033] Through the sliding connection between the connecting pipe and the drain pipe and the mutual communication between the connecting pipe and the drain pipe, the water pressure in the drain pipe acts on the connecting pipe, thereby driving the scraper and the inner wall of the mixing box to contact each other, and then the rotating positioning pipe cleans the inner wall of the mixing box through the scraper.

[0034] Through the mutual cooperation between the guide hole and the feed hole, and the guide holes being staggered at intervals of 120 degrees, the rotating discharge pipe can discharge different reactants intermittently, thereby enabling processing operations of different procedures. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 It is a rear view structural schematic diagram of the present invention;

[0037] Figure 3 It is a schematic diagram of the front cross-sectional structure of the present invention;

[0038] Figure 4 It is a schematic diagram of the positioning tube and umbrella-shaped filter cover structure of the present invention.

[0039] Figure 5 This is a schematic diagram of the stirring mechanism structure of the present invention;

[0040] Figure 6 This is a schematic diagram of the transmission connection structure between the positioning tube and the discharge tube of the present invention;

[0041] Figure 7 It is a schematic cross-sectional structure diagram of the transmission connection between the positioning tube and the discharge tube of the present invention;

[0042] Figure 8 It is a schematic diagram of the internal structure of the matching box of the present invention.

[0043] In the figure:

[0044] 1. Mixing box; 2. Batching box; 3. Water inlet pipe; 4. Water outlet pipe; 5. Mixing mechanism; 51. Positioning pipe; 52. Drain pipe; 53. Mixing blade; 54. Drain hole; 55. Pump body; 56. Conduit; 57. Suction pipe; 58. Connecting hole; 59. Conversion box; 6. Discharging mechanism; 61. Fixed pipe; 62. Discharging pipe; 63. Guide hole; 64. Feeding hole; 65. Top plate; 66. Screw; 67. Guide plate; 7. Cleaning component; 71. Scraper; 72. Connecting pipe; 8. Feeding pipe; 9. Isolation plate; 10. Transmission rod; 11. Fixed box; 12. First bevel gear; 13. Second bevel gear; 14. Worm; 15. Worm wheel; 16. Positioning box; 17. Umbrella filter cover; 18. Fixed rod; 19. Scraper rod; 20. Support leg; 21. Collecting box. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings 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.

[0046] Reference Figure 1-8 A raw material pretreatment device for chemical catalytic reforming comprises a mixing box 1, a batching box 2 is fixedly mounted on the top of the mixing box 1, two isolation plates 9 are mounted on the inner wall of the batching box 2, a plurality of feeding pipes 8 are mounted on one side of the batching box 2, a water inlet pipe 3 is mounted on one side of the mixing box 1, a water outlet pipe 4 is mounted on one side of the mixing box 1, and four symmetrically arranged supporting legs 20 are fixedly mounted on the bottom of the mixing box 1;

[0047] The pump body 55 is installed on the other side of the mixing box 1. A suction pipe 57 is installed at the bottom of the pump body 55. One end of the suction pipe 57 is connected to the mixing box 1. A conduit 56 is installed on one side of the pump body 55. One end of the conduit 56 extends into the mixing box 1 and is installed with a conversion box 59.

[0048] The umbrella-shaped filter cover 17 is fixedly mounted on the inner wall of the mixing box 1 and cooperates with the water inlet pipe 3 .

[0049] The stirring mechanism 5 includes a positioning tube 51, which is rotatably mounted on the conversion box 59, and the positioning tube 51 is rotatably connected to the inner wall of the stirring box 1, and the positioning tube 51 is transmission-connected to the guide tube 56;

[0050] The discharge mechanism 6 includes a discharge pipe 62, which is movably mounted on the batching box 2. A transmission rod 10 is rotatably connected to the inner wall of one side of the mixing box 1. The transmission rod 10 is transmission-connected to the discharge pipe 62, and the transmission rod 10 is transmission-connected to the positioning tube 51.

[0051] The cleaning assembly 7 includes three scrapers 71 , which are arranged on the stirring mechanism 5 and fit the inner wall of the stirring box 1 .

[0052] Reference Figure 3 and Figure 5 The stirring mechanism 5 also includes a plurality of drain pipes 52, which are fixedly mounted on the positioning pipe 51. A plurality of drain holes 54 are provided on the side of the drain pipe 52. A stirring blade 53 is installed at the bottom of the drain pipe 52. The water source on the positioning pipe 51 enters the plurality of drain pipes 52 and is discharged through the plurality of drain holes 54. When the water source is discharged through the drain holes 54, the impact force with the water source in the stirring box 1 reacts to the drain pipe 52, thereby pushing the drain pipe 52 and the positioning pipe 51 to rotate.

[0053] Reference Figure 4 A connecting hole 58 is provided on the positioning tube 51, and the connecting hole 58 is located in the conversion box 59, and the connecting hole 58 cooperates with the conduit 56. The water source in the conduit 56 is introduced into the conversion box 59 and injected into the positioning tube 51 through the connecting hole 58. At the same time, the positioning tube 51 is connected to the conversion box 59 through rotation, and a rotational connection is formed between the positioning tube 51 and the conduit 56.

[0054] Reference Figure 7 The discharge mechanism 6 also includes a fixed tube 61, which is fixedly mounted on the inner wall of the batching box 2, and a discharge tube 62 is movably mounted on the inner wall of the fixed tube 61. Three guide holes 63 are provided on the fixed tube 61, and the three guide holes 63 are staggered at an interval of 120 degrees. Three feed holes 64 are provided on the discharge tube 62, and the guide holes 63 cooperate with the corresponding feed holes 64. The reactant in the batching box 2 is discharged through the guide holes 63 on the fixed tube 61. When the feed hole 64 on the discharge tube 62 overlaps with the guide hole 63, the reactant in the guide hole 63 is introduced into the discharge tube 62 through the feed hole 64, and then discharged through the opening below the discharge tube 62. At the same time, the guide holes 63 are staggered at an interval of 120 degrees, so that the discharge tube 62 can be rotated to different directions for discharge, and then the reaction treatment can be carried out according to different procedures.

[0055] Reference Figure 8 Three guide plates 67 are installed on the inner wall of the batching box 2, and the guide plates 67 are located below the corresponding guide holes 63. The top of the discharge pipe 62 is rotatably connected to a top plate 65, and a screw 66 is threadedly connected to the top plate 65. The screw 66 is rotatably connected to the batching box 2. The setting of the guide plates 67 can facilitate the concentration of the reactants in the batching box 2 and facilitate the introduction into the guide holes 63. At the same time, the screw 66 is threadedly connected to the top plate 65, and the discharge pipe 62 is movably connected to the fixed pipe 61, so that the top plate 65 can be limited, so that the top plate 65 can be driven to rise and fall, and then the height of the discharge pipe 62 can be adjusted, which is convenient for adjusting the overlap between the feed hole 64 and the guide hole 63, thereby adjusting the amount of reactants added.

[0056] Reference Figure 5 The cleaning component 7 also includes a connecting pipe 72, which is slidably installed on the corresponding drain pipe 52. The connecting pipe 72 is communicated with the drain pipe 52, and the scraper 71 is fixedly connected to three connecting pipes 72 in the same vertical direction. The connecting pipe 72 is slidably connected to the drain pipe 52, so that the water pressure in the drain pipe 52 acts on the connecting pipe 72 and pushes the connecting pipe 72, so that the connecting pipe 72 pushes the scraper 71, so that the scraper 71 contacts the inner wall of the mixing box 1.

[0057] Reference Figure 8 A fixing rod 18 is fixedly installed on the positioning tube 51, and a scraper rod 19 is fixedly installed on the bottom end of the fixing rod 18. The scraper rod 19 is in contact with the umbrella-shaped filter cover 17. A collecting box 21 is installed on one side of the mixing box 1. The collecting box 21 is connected to the mixing box 1, and the collecting box 21 cooperates with the umbrella-shaped filter cover 17. The setting of the umbrella-shaped filter cover 17 can facilitate the preliminary filtering of the incoming raw materials. At the same time, the rotating positioning tube 51 drives the scraper rod 19 to rotate through the fixing rod 18. The scraper rod 19 cleans and scrapes the particulate impurities filtered out of the umbrella-shaped filter cover 17, and collects them through the collecting box 21.

[0058] Reference Figure 7 A transmission rod 10 is rotatably connected to the inner wall of one side of the mixing box 1, a first bevel gear 12 is fixedly mounted on the positioning tube 51, and a second bevel gear 13 is fixedly mounted on the transmission rod 10. The first bevel gear 12 and the second bevel gear 13 are meshed with each other. The rotating positioning tube 51 can drive the transmission rod 10 to rotate through the mutual meshing of the first bevel gear 12 and the second bevel gear 13.

[0059] Reference Figure 7 The transmission rod 10 is fixedly mounted on the worm 14, and the bottom end of the discharge pipe 62 is slidably connected with a worm wheel 15, the worm 14 and the worm wheel 15 are meshed with each other, and the rotating transmission rod 10 can drive the worm wheel 15 to rotate through the mutual meshing of the worm 14 and the worm wheel 15, and the rotating worm wheel 15 is connected to the discharge pipe 62 through a vertical sliding connection, thereby driving the discharge pipe 62 to rotate.

[0060] Reference Figure 6 The transmission rod 10 is rotatably connected with a fixed box 11 and a positioning box 16, the fixed box 11 is rotatably connected with the positioning tube 51, the positioning box 16 is movably connected with the discharge tube 62, and the worm gear 15 is rotatably installed on the inner wall of the positioning box 16. The fixed box 11 is rotatably connected with the transmission rod 10 and the positioning tube 51, so as to stabilize the meshing state of the first bevel gear 12 and the second bevel gear 13. At the same time, the positioning box 16 is connected with the transmission rod 10 and the discharge tube 62, so as to stabilize the meshing state of the worm 14 and the worm wheel 15.

[0061] Working principle: During operation, the raw material enters the mixing box 1 through the water inlet pipe 3 and is initially filtered through the umbrella-shaped filter cover 17. At the same time, a valve is provided on the water outlet pipe 4, which is used to discharge or close the water when in use. Then, the pump body 55 switch is started, and the pump body 55 extracts the raw material in the mixing box 1, so that the raw material can circulate from bottom to top. The water source in the conduit 56 is introduced into the conversion box 59 and injected into the positioning tube 51 through the connecting hole 58. At the same time, the positioning tube 51 is connected to the conversion box 59 through rotation, and the positioning tube 51 and the conduit 56 are connected through rotation. The water source on the positioning tube 51 enters into multiple drainage pipes 52 and is connected through the conduit 56. The water is discharged through a plurality of drainage holes 54. When the water source is discharged through the drainage holes 54, the water source in the mixing box 1 reacts to the drainage pipe 52 through the impact force, thereby pushing the drainage pipe 52 and the positioning pipe 51 to rotate. The rotating drainage pipe 52 is stirred and mixed by the stirring blade 53, so that the raw materials and the reactants react and mix quickly, thereby increasing the reaction efficiency and the reaction effect, so that the raw materials can be fully processed. At the same time, the rotating positioning pipe 51 drives the scraper rod 19 to rotate through the fixing rod 18. The scraper rod 19 cleans and scrapes the particulate impurities filtered out of the umbrella-shaped filter cover 17, and collects them through the collecting box 21. The rotating positioning pipe 51 The positioning tube 51 is meshed with the first bevel gear 12 and the second bevel gear 13, thereby driving the transmission rod 10 to rotate. The rotating transmission rod 10 is meshed with the worm 14 and the worm wheel 15, thereby driving the worm wheel 15 to rotate. The rotating worm wheel 15 is connected to the discharge tube 62 through a vertical sliding connection, thereby driving the discharge tube 62 to rotate. The reactant in the batching box 2 is discharged through the guide hole 63 on the fixed tube 61. When the feed hole 64 on the discharge tube 62 coincides with the guide hole 63, the reactant in the guide hole 63 is introduced into the discharge tube 62 through the feed hole 64, thereby passing through the opening below the discharge tube 62. The discharge pipe 62 is arranged at a staggered interval of 120 degrees, so that the discharge pipe 62 can be rotated to different directions for discharge, and then the reaction treatment can be carried out according to different procedures. The setting of the guide plate 67 can facilitate the concentration of the reactants in the batching box 2 and facilitate the introduction into the guide hole 63. At the same time, the screw 66 is connected to the top plate 65 through a thread, and the discharge pipe 62 is movably connected to the fixed pipe 61, so that the top plate 65 can be limited, so that the top plate 65 can be driven to rise and fall, and then the height of the discharge pipe 62 can be adjusted, which is convenient for adjusting the overlap between the feed hole 64 and the guide hole 63, thereby adjusting the amount of reactant added.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A raw material pretreatment device for chemical catalytic reforming, comprising a stirring box (1), characterized in that: A batching box (2) is fixedly mounted on the top of the mixing box (1), two isolation plates (9) are mounted on the inner wall of the batching box (2), a plurality of feed pipes (8) are mounted on one side of the batching box (2), a water inlet pipe (3) is mounted on one side of the mixing box (1), a water outlet pipe (4) is mounted on one side of the mixing box (1), and four symmetrically arranged support legs (20) are fixedly mounted on the bottom of the mixing box (1); A pump body (55) is installed on the other side of the mixing box (1); a suction pipe (57) is installed at the bottom of the pump body (55); one end of the suction pipe (57) is connected to the mixing box (1); a conduit (56) is installed on one side of the pump body (55); one end of the conduit (56) extends into the mixing box (1) and is installed with a conversion box (59); The umbrella-shaped filter cover (17) is fixedly mounted on the inner wall of the mixing box (1) and cooperates with the water inlet pipe (3). The stirring mechanism (5) comprises a positioning tube (51), wherein the positioning tube (51) is rotatably mounted on the conversion box (59), the positioning tube (51) is rotatably connected to the inner wall of the stirring box (1), and the positioning tube (51) is drivingly connected to the guide tube (56); The discharge mechanism (6) comprises a discharge pipe (62), wherein the discharge pipe (62) is movably mounted on the batching box (2), and a transmission rod (10) is rotatably connected to an inner wall of one side of the mixing box (1), wherein the transmission rod (10) is transmission-connected to the discharge pipe (62), and the transmission rod (10) is transmission-connected to the positioning tube (51); The cleaning assembly (7) comprises three scrapers (71) which are arranged on the stirring mechanism (5) and are in contact with the inner wall of the stirring box (1).

2. A raw material pretreatment device for chemical catalytic reforming according to claim 1, characterized in that: The stirring mechanism (5) further comprises a plurality of drainage pipes (52), wherein the plurality of drainage pipes (52) are fixedly mounted on the positioning pipe (51), a plurality of drainage holes (54) are provided on the side surface of the drainage pipe (52), and a stirring blade (53) is mounted at the bottom of the drainage pipe (52).

3. A raw material pretreatment device for chemical catalytic reforming according to claim 2, characterized in that: The positioning tube (51) is provided with a connection hole (58), the connection hole (58) is located in the conversion box (59), and the connection hole (58) and the guide tube (56) cooperate with each other.

4. A raw material pretreatment device for chemical catalytic reforming according to claim 1, characterized in that: The discharge mechanism (6) further comprises a fixed tube (61), wherein the fixed tube (61) is fixedly mounted on the inner wall of the batching box (2), and the discharge tube (62) is movably mounted on the inner wall of the fixed tube (61). The fixed tube (61) is provided with three guide holes (63), and the three guide holes (63) are arranged in a staggered manner at an interval of 120 degrees. The discharge tube (62) is provided with three feed holes (64), and the guide holes (63) cooperate with the corresponding feed holes (64).

5. A raw material pretreatment device for chemical catalytic reforming according to claim 4, characterized in that: Three material guide plates (67) are installed on the inner wall of the batching box (2), and the material guide plates (67) are located below the corresponding guide holes (63). The top end of the discharge pipe (62) is rotatably connected to a top plate (65), and a screw rod (66) is threadedly connected to the top plate (65), and the screw rod (66) is rotatably connected to the batching box (2).

6. A raw material pretreatment device for chemical catalytic reforming according to claim 3, characterized in that: The cleaning assembly (7) further comprises a connecting pipe (72), wherein the connecting pipe (72) is slidably mounted on a corresponding drain pipe (52), the connecting pipe (72) and the drain pipe (52) are in communication with each other, and the scraper (71) is fixedly connected to three connecting pipes (72) in the same vertical direction.

7. A raw material pretreatment device for chemical catalytic reforming according to claim 1, characterized in that: A fixing rod (18) is fixedly mounted on the positioning tube (51), a scraping rod (19) is fixedly mounted on the bottom end of the fixing rod (18), the scraping rod (19) and the umbrella-shaped filter cover (17) are in contact with each other, a collecting box (21) is mounted on one side of the stirring box (1), the collecting box (21) and the stirring box (1) are in communication with each other, and the collecting box (21) and the umbrella-shaped filter cover (17) cooperate with each other.

8. A raw material pretreatment device for chemical catalytic reforming according to claim 1, characterized in that: A first bevel gear (12) is fixedly mounted on the positioning tube (51), and a second bevel gear (13) is fixedly mounted on the transmission rod (10); the first bevel gear (12) and the second bevel gear (13) are meshed with each other.

9. A raw material pretreatment device for chemical catalytic reforming according to claim 8, characterized in that: The transmission rod (10) is fixedly mounted on a worm (14), the bottom end of the discharge pipe (62) is slidably connected with a worm wheel (15), and the worm (14) and the worm wheel (15) are meshed with each other.

10. A raw material pretreatment device for chemical catalytic reforming according to claim 9, characterized in that: The transmission rod (10) is rotatably connected with a fixing box (11) and a positioning box (16), the fixing box (11) is rotatably connected with a positioning tube (51), the positioning box (16) is movably connected with a discharge tube (62), and the worm gear (15) is rotatably mounted on the inner wall of the positioning box (16).

Images