A device for continuously producing nitroanisole from nitrochlorobenzene

Abstract

The embodiment of the present application provides a device for continuously producing nitrobenzene from nitrochlorobenzene, which relates to the field of chemical production technology. A device for continuously producing nitrobenzene from nitrochlorobenzene comprises a fixed cover, the front and rear sides of the bottom of the fixed cover are fixedly connected with a fixed cylinder, and the top of the fixed cover is fixedly connected with a fixed frame, and the four sides of the fixed frame are fixedly connected with a cylinder barrel; both sides of the fixed frame are respectively provided with a shaking component and a stirring component for continuously producing nitrobenzene into nitrobenzene; the inner side of the fixed cylinder is provided with a separation component for separating nitrobenzene. Through the cooperation of the shaking component, the stirring component, the separation component and the supply component, based on the assistance of temperature control conditions, a combination of continuous shaking and stirring and dynamic separation is adopted to efficiently convert nitrobenzene into nitrobenzene, so that its production cost is reduced, the efficiency is higher, and the floor space is smaller.

Description

Technical Field

[0001] The invention belongs to the technical field of chemical production, and in particular relates to a device for continuously producing nitrobenzene methyl ether from nitrochlorobenzene. Background Art

[0002] Nitrochlorobenzene is a chemical substance with the chemical formula C6H4ClNO2. It is a toxic substance that decomposes into toxic chloride and nitrogen oxide gases when burned. Nitroanisole is a toxic substance that is flammable when exposed to open flames. It is a colorless or light yellow crystal. Nitrochlorobenzene as a raw material can be separated and produced into nitrobenzene after a series of methoxylation and nitration reactions.

[0003] In the prior art (the patent application with publication number CN206512117U and patent name of device for continuously producing nitrobenzene methyl ether from nitrochlorobenzene), a device for continuously producing nitrobenzene methyl ether from nitrochlorobenzene is provided, which has high automation, simple operation, high production efficiency, and is clean and environmentally friendly. In the process of implementing the technical solution, it is found that the prior art has at least the following problems.

[0004] During the separation and preparation of nitrobenzene from chloronitrobenzene as a raw material through a series of methoxylation and nitration reactions to obtain nitrobenzene methyl ether, most of the preparation methods are staged, which occupies a large area and involves a wide variety of production equipment. It is not possible to use a combination of continuous shaking and dynamic separation to efficiently convert chloronitrobenzene into nitrobenzene methyl ether, which results in high cost and low efficiency. Summary of the invention

[0005] The present application aims to solve at least one of the technical problems in the prior art that nitrochlorobenzene cannot be efficiently converted into nitrobenzene methyl ether by combining continuous shaking and dynamic separation under the assistance of temperature control conditions, resulting in high cost and low efficiency. To this end, the present application proposes a device for continuously producing nitrobenzene methyl ether from nitrochlorobenzene.

[0006] To achieve the above purpose, the specific technical solutions of the present invention are as follows:

[0007] A device for continuously producing nitroanisole from nitrochlorobenzene comprises a fixed cover, wherein both the front and rear sides of the bottom of the fixed cover are fixedly connected to fixed cylinders, and the top of the fixed cover is fixedly connected to a fixed frame, and the four sides of the fixed frame are fixedly connected to cylinder barrels;

[0008] Both sides of the fixed frame are respectively provided with a shaking assembly and a stirring assembly for continuously producing nitrochlorobenzene into nitroanisole, the shaking assembly includes a limiting transverse groove opened on the front and rear sides of the fixed frame, and a double-headed motor fixed at the bottom center of the fixed frame, and the stirring assembly includes a rack frame fixed on both sides of the top of the fixed frame, and a circular gear meshed on one side of the rack frame;

[0009] A separation component for separating nitroanisole is arranged on the inner side of the fixed cylinder, a main synchronous wheel is fixedly connected to the other output shaft of the double-headed motor, and auxiliary synchronous wheels are connected to the two sides of the main synchronous wheel through synchronous belt transmission.

[0010] Preferably: the shaking assembly includes limiting transverse grooves opened on the front and rear sides of the fixed frame, and a double-headed motor is fixedly connected to the center of the bottom of the fixed frame, a swing arm is fixedly connected to an output shaft of the double-headed motor, and the other side of the swing arm is slidably connected to a swing frame, the front and rear sides of the swing frame are fixedly connected to limiting slides that slidably cooperate with the limiting transverse grooves, and a pushing rod is fixedly connected at the center of both sides of the swing frame, the other end of the pushing rod is fixedly connected to a connecting seat, and the outer side of the connecting seat is fixedly connected to a reaction tank used in conjunction with the fixed frame.

[0011] Preferably: the stirring assembly includes a rack frame fixed on both sides of the top of the fixed frame, and a circular gear is meshed on the teeth of one side of the rack frame, the inner cavity of the circular gear is fixedly connected to a rotating shaft that rotates with the reaction tank, and the upper and lower sides of the rotating shaft are fixedly connected to main bevel gears, the teeth of the main bevel gear are meshed with a secondary bevel gear, and the inner cavity of the secondary bevel gear is respectively fixedly connected to a crushing frame, a stirring frame and a spoiler frame used in conjunction with the reaction tank.

[0012] Preferably: the separation component includes a main synchronous wheel fixed to the other output shaft of the double-headed motor through a coupling, and the two sides of the main synchronous wheel are connected to auxiliary synchronous wheels through a synchronous belt drive, the bottom of the auxiliary synchronous wheel is fixedly connected to a reciprocating screw that rotates with the fixed cover, and the reciprocating screw is threadedly connected to a screw sleeve, the inner side of the screw sleeve is fixedly connected to a support, and the inner side of the support is fixedly connected to a unloading end, the top of the unloading end is fixedly connected to a telescopic sleeve, and the top of the telescopic sleeve is fixedly connected to the feeding end.

[0013] Preferably: a sliding groove is provided on the cylinder barrel, and a supporting slide seat fixedly matched with the reaction tank is slidably connected to the sliding groove, a T-shaped slide rail cover is fixedly connected to the top of the reaction tank, and a T-shaped slide rail groove slidably matched with the T-shaped slide rail cover is provided on the outer side of the inner cavity of the rack frame.

[0014] Preferably: a spoiler fan used in conjunction with the reaction tank is fixedly connected to the bottom of the rotating shaft, and an embedded cover that cooperates with the rotating shaft for rotation is fixedly connected to the upper and lower sides of the inner cavity of the reaction tank through support rods, and the crushing frame, stirring frame and spoiler frame are distributed in a triangular equidistant state along the central axis of the embedded cover.

[0015] Preferably: the bottom of the reaction tank is connected to a one-way valve, and a flow sensor is embedded in the outer end of the one-way valve, the bottom end of the one-way valve is connected to a discharge telescopic tube, and the inner end of the discharge telescopic tube is connected to a discharge three-way pipe that is connected and matched with the feed end.

[0016] Preferably: the inner cavity of the feeding end is fixedly connected to a primary separation net, and the inner cavity of the unloading end is fixedly connected to a secondary separation net, the primary separation net and the secondary separation net both adopt an array-shaped circular hole design, and a limiting vertical groove that slides with the support is opened on the inner side of the fixed cylinder.

[0017] Preferably, the fixed cover is fixedly connected with a polished rod frame fixedly matched with the feeding end all around, and a sliding sleeve fixedly matched with the unloading end is slidably connected to the polished rod frame, and a buffer spring fixedly matched with the sliding sleeve is sleeved on the outer surface of the polished rod frame.

[0018] Preferably, the bottom of the discharge end is connected with a discharge telescopic pipe, and both ends of the bottom of the discharge telescopic pipe are connected with discharge pipes, and the discharge pipe is provided with an electric control valve and fixedly connected to the light rod frame through a mounting piece.

[0019] The device for continuously producing nitrobenzene from chloronitrobenzene of the present invention has the following advantages:

[0020] 1. The device for continuously producing nitrobenzene from nitrochlorobenzene, during the process of separating nitrobenzene from nitrochlorobenzene as a raw material through a series of methoxylation and nitration reactions to obtain nitrobenzene, a double-headed motor first provides a unified driving source to save power costs, and the horizontal reciprocating motion of a swing arm and a swing frame is coordinated to realize a horizontal back-and-forth shaking function for two groups of reaction tanks through connecting seats on two push rods, so that the nitrochlorobenzene, sodium methoxide solution and nitric acid added to the two groups of reaction tanks are fully shaken, and nitric acid is used as a nitration reagent in the nitration reaction, so that nitrochlorobenzene undergoes a nucleophilic substitution reaction under the action of the sodium methoxide solution, the chlorine atom is replaced by a methoxy group, and nitrobenzene is efficiently generated.

[0021] 2. The device for continuously producing nitrobenzene from nitrochlorobenzene comprises the following steps: at the same time, by the rotational coordination of two groups of racks and circular gears, and the rotational coordination of the main bevel gear and the secondary bevel gear on the two rotating shafts, the two groups of pulverizing racks, stirring racks and spoiler racks in a rotating state are used to stir the nitrochlorobenzene, the sodium methoxide solution and the nitric acid added to the two groups of reaction tanks again, so that the nitrochlorobenzene is effectively subjected to a series of methoxylation and nitration reactions under the action of the sodium methoxide solution, thereby further improving the efficiency of nitrochlorobenzene in generating nitrobenzene from nitrochlorobenzene.

[0022] 3. The device for continuously producing nitrobenzene from nitrochlorobenzene, after nitrobenzene generates nitrobenzene, is coordinated with the synchronous transmission of the main synchronous wheel and the two sets of auxiliary synchronous wheels, and coordinated with the reciprocating lifting of the two reciprocating screw rods and the screw rod sleeve, and realizes the lifting dynamic separation effect of the unloading end, the telescopic sleeve and the feeding end through the two sets of supports, so as to dynamically separate the generated nitrobenzene, and effectively obtain the finished nitrobenzene. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a structural initial state diagram of a device for continuously producing nitrobenzene from nitrochlorobenzene according to the present invention;

[0025] Figure 2 This is a structural working state diagram of a device for continuously producing nitrobenzene from nitrochlorobenzene according to the present invention;

[0026] Figure 3 This is an internal view of the initial state of the structure of a device for continuously producing nitrobenzene from nitrochlorobenzene according to the present invention;

[0027] Figure 4 This is an internal view of the working state of the device structure for continuously producing nitrobenzene from nitrochlorobenzene according to the present invention;

[0028] Figure 5 It is a side cross-sectional view of the fixing frame, shaking assembly and stirring assembly structure of the present invention;

[0029] Figure 6 It is a side cross-sectional view of the fixing frame and the shaking assembly structure of the present invention;

[0030] Figure 7 A side view of the structure of the stirring assembly of the present invention;

[0031] Figure 8 A side view of the separation assembly structure of the present invention;

[0032] Fig. 9 It is a top view of the material discharge end and the secondary separation net structure of the present invention;

[0033] Fig.10 It is a cross-sectional exploded view of the structure of the unloading end, the telescopic sleeve, the loading end, the primary separation net and the secondary separation net of the present invention;

[0034] Fig.11 It is a side cross-sectional view of the cylinder barrel, shaking assembly and supply assembly structure of the present invention;

[0035] Fig.12 A partial side view of the supply assembly structure of the present invention;

[0036] Fig.13 It is a front view of the fixed cover, fixed cylinder, fixed frame, cylinder barrel, rack frame and polished rod frame structure of the present invention.

[0037] Explanation of the markings in the figure: 1. Fixed cover; 2. Fixed cylinder; 3. Fixed frame; 4. Cylinder barrel; 5. Shaking assembly; 51. Limiting horizontal groove; 52. Double-headed motor; 53. Swing arm; 54. Swing frame; 55. Limiting slide seat; 56. Push rod; 57. Connecting seat; 58. Reactor; 6. Stirring assembly; 61. Rack rack; 62. Circular gear; 63. Rotating shaft; 64. Main bevel gear; 65. Sub bevel gear; 66. Crushing frame; 67. Stirring frame; 68. Spoiler frame; 7. Separation assembly; 71. Main synchronous wheel; 72. Sub synchronous wheel; 73. Reciprocating screw; 74. Screw sleeve; 75. Support; 76. Unloading end; 77. Telescopic sleeve; 78. Loading end ;8. Supply assembly;81. Piston rod;82. Piston head;83. Pressurized pipe;84. Pressure storage tank;85. Small hot and cold all-in-one machine;86. Supply telescopic pipe;87. Supply manifold rack;88. Annular main pipe rack;89. Annular conduction pad;810. Annular conduction groove;9. Sliding groove;10. Support slide;11. T-type slide rail cover;12. T-type slide rail groove;13. Spoiler fan;14. Embedded cover;15. One-way valve;16. Discharge telescopic pipe;17. Discharge three-way pipe;18. Primary separation net;19. Secondary separation net;20. Limiting vertical groove;21. Bare rod rack;22. Sliding sleeve;23. Buffer spring;24. Discharge telescopic pipe;25. Discharge pipe. DETAILED DESCRIPTION

[0038] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0039] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0042] The disclosure below provides many different embodiments or examples to implement different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present invention. In addition, the embodiments of the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0043] like Figure 1-Figure 13 As shown, a device for continuously producing nitrobenzene methyl nitrate from nitrochlorobenzene of the present invention comprises a fixed cover 1, a fixed barrel 2 is fixedly connected to both the front and rear sides of the bottom of the fixed cover 1, a fixed frame 3 is fixedly connected to the top of the fixed cover 1, a cylinder barrel 4 is fixedly connected to all sides of the fixed frame 3, an air intake valve is provided on the air intake port of the cylinder barrel 4, and an air exhaust valve is provided on the air exhaust port of the cylinder barrel 4, which is beneficial to the air supply and exhaust work of the cylinder barrel 4;

[0044] A shaking component 5 and a stirring component 6 for continuously producing nitrobenzene into nitrobenzene methyl ether are respectively provided on both sides of the fixed frame 3. The added nitrobenzene, sodium methoxide solution and nitric acid are fully shaken and stirred. Nitric acid is used as a nitration reagent in the nitration reaction. Nitrochlorobenzene undergoes a nucleophilic substitution reaction under the action of the sodium methoxide solution. The chlorine atom is replaced by a methoxy group to efficiently generate nitrobenzene methyl ether. A separation component 7 for separating nitrobenzene methyl ether is provided on the inner side of the fixed cylinder 2. The generated nitrobenzene methyl ether is dynamically separated by reciprocating lifting and lowering, so as to effectively obtain the finished nitrobenzene methyl ether.

[0045] like Figure 5-Figure 10As shown, the shaking assembly 5 includes a limiting transverse groove 51 opened on the front and rear sides of the fixing frame 3, and a double-headed motor 52 is fixedly connected at the center of the bottom of the fixing frame 3. The double-headed motor 52 first provides a unified driving source to save power cost. A swing arm 53 is fixedly connected to an output shaft of the double-headed motor 52, and the other side of the swing arm 53 is slidably connected to a swing frame 54. The front and rear sides of the swing frame 54 are fixedly connected with a limiting slide 55 that slidably cooperates with the limiting transverse groove 51, and the centers of both sides of the swing frame 54 are fixedly connected with a push rod 56, the other end of the push rod 56 is fixedly connected with a connecting seat 57, and the outer side of the connecting seat 57 is fixedly connected with a reaction tank 58 used in conjunction with the fixing frame 3. Under the cooperation of the horizontal reciprocating motion of the swing arm 53 and the swing frame 54, the connecting seats 57 on the two push rods 56 realize the horizontal back and forth shaking function of the two groups of reaction tanks 58, so that the nitrochlorobenzene, sodium methoxide solution and nitric acid filled in the two groups of reaction tanks 58 are fully shaken;

[0046] The stirring assembly 6 includes a rack rack 61 fixed on both sides of the top of the fixed frame 3, and a circular gear 62 is meshed on the teeth of one side of the rack rack 61, and the two groups of rack racks 61 drive the two groups of circular gears 62 to rotate at a forward and reverse frequency, and the inner cavity of the circular gear 62 is fixedly connected with a rotating shaft 63 that rotates with the reaction tank 58, and the upper and lower sides of the rotating shaft 63 are fixedly connected with a main bevel gear 64, and the teeth of the main bevel gear 64 are meshed with a secondary bevel gear 65. The main bevel gears 64 on the two rotating shafts 63 drive the two groups of secondary bevel gears 65 to rotate at a forward and reverse frequency, and the inner cavity of the secondary bevel gear 65 is respectively fixedly connected with a crushing frame 66, a stirring frame 67 and a spoiler frame 68 used in conjunction with the reaction tank 58, and the nitrochlorobenzene, sodium methoxide solution and nitric acid added to the two groups of reaction tanks 58 are stirred again by the two groups of crushing frames 66, stirring frames 67 and spoiler frames 68 in a rotating state;

[0047] The cylinder barrel 4 is provided with a sliding groove 9, and the sliding groove 9 is slidably connected with a support slide 10 fixedly matched with the reaction tank 58, which plays a role of sliding support for the reaction tank 58, and improves the stability of the horizontal back and forth displacement of the reaction tank 58. The top of the reaction tank 58 is fixedly connected with a T-shaped slide rail cover 11, and the outer side of the inner cavity of the rack frame 61 is provided with a T-shaped slide rail groove 12 slidably matched with the T-shaped slide rail cover 11, which further plays a role of sliding support for the reaction tank 58 at the bottom of the T-shaped slide rail cover 11, and also improves the stability between the rack frame 61 and the circular gear 62. The meshing is tight, and the bottom of the rotating shaft 63 is fixedly connected with a spoiler fan 13 used in conjunction with the reaction tank 58, which is beneficial to the turbulent discharge of the nitrobenzene prepared in the reaction tank 58, and the upper and lower sides of the inner cavity of the reaction tank 58 are fixedly connected with an embedded cover 14 that rotates with the rotating shaft 63 through a support rod, which has an anti-corrosion sealing effect on the main bevel gear 64 and the auxiliary bevel gear 65. The crushing frame 66, the stirring frame 67 and the spoiler frame 68 are distributed in a triangular equidistant state along the central axis of the embedded cover 14, so that the raw materials and additives added into the reaction tank 58 are fully crushed and mixed.

[0048] The separation component 7 includes a main synchronous wheel 71 fixed to the other output shaft of the double-headed motor 52 through a coupling, and the two sides of the main synchronous wheel 71 are connected to the auxiliary synchronous wheels 72 through a synchronous belt transmission. The main synchronous wheel 71 drives the two sets of auxiliary synchronous wheels 72 to rotate synchronously through the synchronous belt. The bottom of the auxiliary synchronous wheel 72 is fixedly connected to a reciprocating screw rod 73 that rotates with the fixed cover 1, and the reciprocating screw rod 73 is threadedly connected to a screw rod sleeve 74. The two reciprocating screw rods 73 drive the screw rod sleeve 74 to reciprocate. During the lifting action, the inner side of the screw sleeve 74 is fixedly connected with a support 75, and the inner side of the support 75 is fixedly connected with a feeding end 76, the top of the feeding end 76 is fixedly connected with a telescopic sleeve 77, and the top of the telescopic sleeve 77 is fixedly connected with a feeding end 78. The two groups of screw sleeves 74 realize a lifting dynamic separation effect on the feeding end 76, the telescopic sleeve 77 and the feeding end 78 through the two groups of supports 75, and the generated nitrobenzyl ether is dynamically separated to effectively obtain the finished nitrobenzyl ether.

[0049] The bottom of the reaction tank 58 is connected with a one-way valve 15, and a flow sensor is embedded in the outer end of the one-way valve 15. The bottom end of the one-way valve 15 is connected with a discharge telescopic tube 16, and the inner end of the discharge telescopic tube 16 is connected with a discharge tee tube 17 connected and matched with the feeding end 78, which is conducive to the metering discharge of the nitrobenzene prepared in the reaction tank 58. The inner cavity of the feeding end 78 is fixedly connected with a primary separation net 18, and the inner cavity of the discharge end 76 is fixedly connected with a secondary separation net 19. The nitrobenzene is treated in a double separation manner. The primary separation net 18 and the secondary separation net 19 are both designed with array-shaped circular holes, and the inner side of the fixed cylinder 2 is provided with a limiting vertical groove 20 that is slidably matched with the support 75, which plays a role of limiting the sliding of the support 75 to prevent the support 75 from shaking and tilting;

[0050] The fixed cover 1 is fixedly connected with a light rod frame 21 fixedly matched with the feeding end 78 on all four sides, and the feeding end 78 is fixed so that the feeding end 78 is in a fixed state, and a sliding sleeve 22 fixedly matched with the unloading end 76 is slidably connected to the light rod frame 21, and a buffer spring 23 fixedly matched with the sliding sleeve 22 is sleeved on the outer surface of the light rod frame 21, which plays a role of sliding support for the unloading end 76, thereby improving the lifting and lowering stability of the unloading end 76, and a discharge telescopic pipe 24 is connected to the bottom of the unloading end 76, and both ends of the bottom of the discharge telescopic pipe 24 are connected to a discharge pipe 25, and an electric control valve is provided on the discharge pipe 25 and is fixedly connected to the light rod frame 21 through a mounting part, which is beneficial to the zonal discharge of the finally obtained nitroanisole finished product.

[0051] like Figure 11-Figure 12 As shown, during the period when nitrochlorobenzene is used as a raw material to undergo a series of methoxylation and nitration reactions to prepare nitrobenzene methyl ether, it is necessary to provide temperature control conditions for the conversion of nitrochlorobenzene into nitrobenzene methyl ether, which is mostly supplied by other temperature control equipment, which is more troublesome and also increases the cost of its production equipment. The reaction tank 58 is provided with a supply assembly 8 used in conjunction with the cylinder barrel 4, and the supply assembly 8 includes a piston rod 81 fixed on both sides of the limit slide 55, the other end of the piston rod 81 is fixedly connected to a piston head 82 that is slidably matched with the cylinder barrel 4, and the exhaust port of the cylinder barrel 4 is connected to a pressurizing pipe 83, and the other end of the pressurizing pipe 83 is connected to a pressure storage tank 84 that is fixedly matched with the fixed barrel 2. Two groups of piston rods 81 and piston heads 82 follow the horizontally reciprocating limit slide 55 to perform work in the cylinder barrel 4, provide a pressurized gas source supply and are supplied to the pressure storage tank 84 by the pressurizing pipe 83 for temporary storage;

[0052] The outer end of the pressure storage tank 84 is unidirectionally connected to a small integrated cold and hot machine 85, and both ends of the pressure storage tank 84 are connected to a supply telescopic pipe 86, the other end of the supply telescopic pipe 86 is connected to a supply manifold rack 87, and the inner end of the supply manifold rack 87 is connected to an annular main pipe rack 88, the inner cavity of the annular main pipe rack 88 is sleeved with an annular conduction pad 89, and the reaction tank 58 is provided with an annular conduction groove 810 used in conjunction with the annular main pipe rack 88 and the annular conduction pad 89. The small integrated cold and hot machine 85 provides a supply of cold and hot sources, and with the support of the pressurized gas source in the pressure storage tank 84, the supply telescopic pipe 86 and the supply manifold rack 87 are supplied into the annular main pipe rack 88, and the heat source or cold source is conducted to the reaction tank 58 through the annular conduction pad 89 and the annular conduction groove 810, so as to provide temperature control auxiliary conditions for the reaction occurring in the reaction tank 58, so as to promote the reaction between the raw materials in the reaction tank 58 to be more sufficient and more efficient.

[0053] The working principle of a device for continuously producing nitrobenzene from nitrochlorobenzene is as follows: first, nitrochlorobenzene, sodium methoxide solution as a catalyst in a methoxylation reaction, and nitric acid as a nitration reagent in a nitration reaction are respectively added into two groups of reaction tanks 58, and then the double-headed motor 52 is controlled to start and drive the swing arm 53 to rotate, and the swing arm 53 drives the swing frame 54 to reciprocate horizontally, and the swing frame 54 drives two groups of limit slides 55 to reciprocate horizontally in the limit transverse groove 51, and the swing frame 54 also drives the connecting seats 57 on the two push rods 56 to reciprocate horizontally, and the two groups of sliding grooves 9 and the support slide 10 provide sliding support for the two groups of reaction tanks 58, and the connecting seats 57 on the two push rods 56 drive the two groups of reaction tanks 58 to shake horizontally and reciprocate, so that the raw materials and additives added into the two groups of reaction tanks 58 are fully shaken;

[0054] The two groups of reaction tanks 58 that reciprocate horizontally drive the T-shaped slide rail covers 11 to slide horizontally and reciprocally in the T-shaped slide rail grooves 12 in the two groups of rack racks 61, and the teeth on one side of the two groups of rack racks 61 drive the two groups of circular gears 62 to rotate with positive and negative frequencies, and the two groups of circular gears 62 that rotate with positive and negative frequencies drive the two groups of main bevel gears 64 to rotate with positive and negative frequencies through the two rotating shafts 63, and the two groups of main bevel gears 64 drive the crushing racks 66, stirring racks 67 and spoiler racks 68 that are triangularly equidistantly distributed on the two groups of auxiliary bevel gears 65 to rotate with positive and negative frequencies, and on the basis of shaking, the two groups of crushing racks 66, stirring racks 67 and spoiler racks 68 again fully stir the raw materials and additives added in the two groups of reaction tanks 58, until nitrochlorobenzene is used as a raw material to obtain nitroanisole after a series of reactions of methoxylation and nitration;

[0055] The swing frame 54 drives the two sets of limit slides 55 to reciprocate horizontally in the limit transverse groove 51, and the two sets of limit slides 55 drive the piston heads 82 on the two sets of piston rods 81 to reciprocate in the cylinder barrel 4, and the pressurized gas source generated in the two sets of cylinder barrels 4 is supplied to the two sets of pressure storage tanks 84 through the two pressurizing pipes 83 for temporary storage. Before that, the small hot and cold integrated machine 85 is controlled to start according to the reaction requirements and the generated heat source or cold source is supplied to the two sets of pressure storage tanks 84 in one direction. The heat source or cold source after being supported by the pressurized gas source is supplied to the two sets of annular main pipe racks 88 through two supply telescopic pipes 86 and supply manifold racks 87, and the two sets of annular main pipe racks 88 are heated or cooled. Then, the heat source or cold source on the two sets of annular main pipe racks 88 is conducted to the two sets of reaction tanks 58 by two sets of annular conduction pads 89 and annular conduction grooves 810, so as to provide the temperature control conditions required for the reaction of the raw materials and additives added in the two sets of reaction tanks 58.

[0056] After nitroanisole is prepared, the two groups of one-way valves 15 are controlled to open, and the nitroanisole generated in the two groups of reaction tanks 58 is disturbed by the spoiler fan 13 rotating with the two rotating shafts 63 to flow into the two unloading telescopic pipes 16, and then flows into the primary separation net 18 in the loading end 78 through the unloading tee pipe 17. At the same time, the main synchronous wheel 71 is driven by the double-headed motor 52 to rotate synchronously with the swing arm 53. The main synchronous wheel 71 drives the reciprocating screw rods 73 on the two groups of auxiliary synchronous wheels 72 to rotate synchronously through the synchronous belt. The two reciprocating screw rods 73 drive the supports 75 on the two groups of screw rod sleeves 74 to slide up and down in the limiting vertical groove 20. The four groups of light rod frames 21, the sliding sleeves 22 and the buffer The spring 23 plays a sliding support role for the unloading end 76. When the four groups of light rod frames 21 are fixedly matched with the loading end 78, the two groups of supports 75 drive the unloading end 76 to perform reciprocating lifting motion. Since the loading end 78 is in a fixed state, the reciprocating lifting motion of the unloading end 76 forces the telescopic sleeve 77 to perform telescopic motion accordingly. After the initial separation by the primary separation net 18, the secondary separation net 19 that follows the reciprocating lifting motion of the unloading end 76 performs another dynamic separation on the obtained nitrobenzene ether. After the separation to obtain the finished nitrobenzene ether, it can be discharged through the two discharge pipes 25 by the discharge telescopic pipe 24 that follows the reciprocating telescopic motion of the unloading end 76.

[0057] It should be noted that the specific model specifications of the double-headed motor 52 and the small integrated cold and hot machine 85 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be repeated in detail.

[0058] The power supply circuits of the double-headed motor 52, the small integrated cold and hot machine 85, and the valves and sensors are clear to those skilled in the art and will not be described in detail herein.

[0059] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A device for continuously producing nitroanisole from nitrochlorobenzene, comprising a fixed cover (1), characterized in that: The front and rear sides of the bottom of the fixed cover (1) are fixedly connected to a fixed cylinder (2), and the top of the fixed cover (1) is fixedly connected to a fixed frame (3), and the four sides of the fixed frame (3) are fixedly connected to a cylinder (4); A shaking assembly (5) and a stirring assembly (6) for continuously producing nitrochlorobenzene into nitroanisole are respectively arranged on both sides of the fixed frame (3). The shaking assembly (5) comprises a limit transverse groove (51) provided on both sides of the fixed frame (3), and a double-headed motor (52) fixed at the bottom center of the fixed frame (3). A swing arm (53) is fixedly connected to one output shaft of the double-headed motor (52), and a swing frame (54) is slidably connected to the other side of the swing arm (53). The front and rear sides of the swing frame (54) are fixedly connected to a limit slide seat (55) slidably matched with the limit transverse groove (51), and a push rod (56) is fixedly connected at the center of both sides of the swing frame (54), and the other end of the push rod (56) is fixedly connected to the other end of the push rod (56). A connecting seat (57) is connected, and a reaction tank (58) used in conjunction with the fixing frame (3) is fixedly connected to the outer side of the connecting seat (57), the stirring assembly (6) comprises a rack frame (61) fixed to both sides of the top of the fixing frame (3), and a circular gear (62) meshed with one side of the rack frame (61), the inner cavity of the circular gear (62) is fixedly connected to a rotating shaft (63) rotatably matched with the reaction tank (58), and the upper and lower sides of the rotating shaft (63) are fixedly connected to a main bevel gear (64), the teeth of the main bevel gear (64) are meshed with a secondary bevel gear (65), and the inner cavity of the secondary bevel gear (65) is respectively fixedly connected to a crushing frame (66), a stirring frame (67) and a spoiler frame (68) used in conjunction with the reaction tank (58); A separation assembly (7) for separating nitroanisole is arranged on the inner side of the fixed cylinder (2); a main synchronous wheel (71) is fixedly connected to the other output shaft of the double-headed motor (52); and auxiliary synchronous wheels (72) are connected to the two sides of the main synchronous wheel (71) via a synchronous belt transmission; a reciprocating screw (73) that is rotatably matched with the fixed cover (1) is fixedly connected to the bottom of the auxiliary synchronous wheel (72); and a screw sleeve (74) is threadedly connected to the reciprocating screw (73); a support (75) is fixedly connected to the inner side of the screw sleeve (74); and a feeding end (76) is fixedly connected to the inner side of the support (75); a telescopic sleeve (77) is fixedly connected to the top of the feeding end (76); and a feeding end (78) is fixedly connected to the top of the telescopic sleeve (77); The reaction tank (58) is provided with a supply assembly (8) for use with the cylinder barrel (4), and the supply assembly (8) includes a piston rod (81) fixed on both sides of the limit slide seat (55), the other end of the piston rod (81) is fixedly connected to a piston head (82) that is slidably matched with the cylinder barrel (4), and the exhaust port of the cylinder barrel (4) is connected to a pressurizing pipe (83), the other end of the pressurizing pipe (83) is connected to a pressure storage tank (84) that is fixedly matched with the fixed barrel (2), and the outer end of the pressure storage tank (84) is connected to the pressure storage tank (84). A small integrated cold and hot machine (85) is connected in one direction, and both ends of the pressure storage tank (84) are connected to a supply telescopic pipe (86), the other end of the supply telescopic pipe (86) is connected to a supply manifold frame (87), and the inner end of the supply manifold frame (87) is connected to an annular main pipe frame (88), the inner cavity of the annular main pipe frame (88) is provided with an annular conduction pad (89), and the reaction tank (58) is provided with an annular conduction groove (810) used in conjunction with the annular main pipe frame (88) and the annular conduction pad (89).

2. The device for continuously producing nitrobenzene from chloronitro according to claim 1, wherein: The cylinder barrel (4) is provided with a sliding groove (9), and a supporting slide seat (10) fixedly matched with the reaction tank (58) is slidably connected to the sliding groove (9), a T-shaped slide rail cover (11) is fixedly connected to the top of the reaction tank (58), and a T-shaped slide rail groove (12) slidably matched with the T-shaped slide rail cover (11) is provided on the outer side of the inner cavity of the rack frame (61).

3. The device for continuously producing nitrobenzene from chloronitro according to claim 2, characterized in that: A spoiler fan (13) for use with the reaction tank (58) is fixedly connected to the bottom of the rotating shaft (63), and an embedded cover (14) for rotationally cooperating with the rotating shaft (63) is fixedly connected to the upper and lower sides of the inner cavity of the reaction tank (58) via support rods, and the crushing frame (66), the stirring frame (67) and the spoiler frame (68) are distributed in a triangular equidistant state along the central axis of the embedded cover (14).

4. The device for continuously producing nitrobenzene from chloronitrobenzene according to claim 3, wherein: The bottom of the reaction tank (58) is connected to a one-way valve (15), and a flow sensor is embedded in the outer end of the one-way valve (15). The bottom end of the one-way valve (15) is connected to a discharge telescopic tube (16), and the inner end of the discharge telescopic tube (16) is connected to a discharge three-way tube (17) that is connected and matched with the feed end (78).

5. The device for continuously producing nitrobenzene from chloronitro according to claim 4, characterized in that: The inner cavity of the feeding end (78) is fixedly connected to a primary separation net (18), and the inner cavity of the discharging end (76) is fixedly connected to a secondary separation net (19). Both the primary separation net (18) and the secondary separation net (19) are designed with array-shaped circular holes, and a limiting vertical groove (20) that slidably cooperates with the support (75) is provided on the inner side of the fixed cylinder (2).

6. A device for continuously producing nitrobenzene from chloronitrobenzene according to claim 5, characterized in that: The fixed cover (1) is fixedly connected to a polished rod frame (21) fixedly matched with the feeding end (78) on all sides, and a sliding sleeve (22) fixedly matched with the unloading end (76) is slidably connected to the polished rod frame (21), and a buffer spring (23) fixedly matched with the sliding sleeve (22) is sleeved on the outer surface of the polished rod frame (21).

7. A device for continuously producing nitrobenzene from chloronitrobenzene according to claim 6, characterized in that: The bottom of the discharge end (76) is connected to a discharge telescopic pipe (24), and both ends of the bottom of the discharge telescopic pipe (24) are connected to discharge pipes (25). The discharge pipe (25) is provided with an electric control valve and is fixedly connected to the bare rod frame (21) via a mounting piece.

Images