A Dinitrochlorobenzene Heat Treatment Production Line

Abstract

The present invention relates to the technical field of dinitrochlorobenzene production equipment, and proposes a dinitrochlorobenzene heat treatment production line, comprising: a bottom plate, two brackets fixedly installed on the upper end of the bottom plate, the inner sides of the two brackets are fixedly sleeved with a raw material barrel, and a mounting frame is arranged on the bottom plate between the two brackets, and an oil tank and a microchannel reactor are installed on the mounting frame. The driving mechanism is started, and the quantitative feeding mechanism, the oil injection mechanism and the stirring mechanism are synchronously driven by the driving mechanism. During the operation of the quantitative feeding mechanism, the raw materials in the two raw material barrels can be transported to the inside of the microchannel reactor in proportion for mixing, and the oil injection mechanism can pump the oil in the oil tank into the microchannel reactor to perform heat exchange on the mixed raw materials. The porous stirring plate on the stirring mechanism can mix and stir the raw materials in the raw material barrel to make them fully uniform, avoid excessive concentration of reactants in a local area, and thus prevent local overheating or solidification.

Description

Technical Field

[0001] The invention relates to the technical field of dinitrochlorobenzene production equipment, and in particular to a dinitrochlorobenzene heat treatment production line. Background Art

[0002] Dinitrochlorobenzene is a chemical agent, a hapten, which can covalently bind to the soluble part of epithelial protein to form a complete antigen. It is a light yellow crystalline powder, soluble in acetone. In the production process of dinitrochlorobenzene, the materials in the dinitro mixed acid tank and the mononitrochlorobenzene tank are respectively sent to the microchannel reactor by metering pumps in proportion for dinitro reaction. After passing through the microchannel reactor, the mixed materials first enter the first-stage tubular reactor and then the second-stage tubular reactor to continue the reaction and cool down to improve the material conversion rate (mononitrochlorobenzene is basically completely converted; the purpose of the second-stage tubular reactor is to cool down). Mononitrochlorobenzene reacts with nitric acid in the dinitro mixed acid to produce dinitrochlorobenzene. The microchannel reactor can use a methyl silicone oil heat exchanger to take away the heat generated by the dinitro reaction.

[0003] Among them, the mixing effect of the microchannel reactor is achieved through its narrow channels, which are usually between a few hundred microns and a few millimeters wide and are designed for mixing and chemical reactions between fluids. For example, after searching, the existing patent (Announcement No.: CN208229885U) discloses a microchannel reactor, which can allow two fluid reactants to be reacted to enter the three-way feed pipe from the first feed port and the second feed port, and the reactants merge in the three-way feed pipe, and then enter the microchannel reaction tube from the feed end of the microchannel reaction tube through the connecting tube for mixed reaction. After the reaction in the microchannel reaction tube is completed, the reactants are discharged through the discharge end of the microchannel reaction tube. The existing patent (Announcement No.: CN109925991B) discloses a microchannel reactor, which uses a linear, curved or broken line reaction tube. When the reaction tube is in the heat exchange chamber, the reaction tube can cause the heat exchange medium flowing in the heat exchange chamber to fluctuate, which is helpful for heat exchange.

[0004] However, there are still some shortcomings in the above scheme and the existing dinitrochlorobenzene heat treatment work: When two raw materials are transported to a microchannel reactor for mixed reaction, two pumping devices are usually required, which has high use and subsequent maintenance costs; The heat exchange oil cannot be pumped while the raw materials are being pumped, and the stirring of the mixed acid raw materials can ensure the uniform distribution of the reactants and avoid excessive concentration of the reactants in a certain area, thereby preventing local overheating or solidification. However, at present, the raw materials in the material barrel cannot be stirred while they are being pumped, which has low practicality. Summary of the invention

[0005] The present invention proposes a dinitrochlorobenzene heat treatment production line, which solves the problems in the related art that heat exchange oil cannot be transported while raw materials are pumped, raw materials in a material barrel cannot be stirred in a linked manner, and the practicality is low.

[0006] The technical solution of the present invention is as follows: a dinitrochlorobenzene heat treatment production line, comprising: a bottom plate, two brackets fixedly mounted on the upper end of the bottom plate, a raw material barrel fixedly sleeved on the inner side of the two brackets, a mounting frame arranged on the bottom plate between the two brackets, an oil tank and a microchannel reactor mounted on the mounting frame; Two quantitative feeding mechanisms are arranged between the two raw material barrels, and the raw materials in the two raw material barrels are respectively transported to the microchannel reactor in proportion for mixing through the two quantitative feeding mechanisms; An oil injection mechanism is provided between the two quantitative feeding mechanisms, for pumping the oil in the oil tank into the microchannel reactor to perform heat exchange on the mixed raw materials; A stirring mechanism is provided on one side of the bracket for stirring the raw materials inside one of the raw material barrels; A driving mechanism is arranged above the bottom plate, which is used to synchronously drive the quantitative feeding mechanism, the oil injection mechanism and the stirring mechanism.

[0007] Preferably, the driving mechanism includes two support plates fixed to the upper end of the base plate by bolts, and a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a fifth connecting rod are arranged between the two support plates from left to right, and the fifth connecting rod and the first connecting rod are rotatably connected to the two support plates respectively, and a motor is installed on the outer wall of one of the support plates for rotating the first connecting rod.

[0008] Preferably, the two quantitative feeding mechanisms each include two swing frames arranged parallel to each other, wherein the two swing frames on one of the quantitative feeding mechanisms are respectively fixed to the ends of the third connecting rod and the fourth connecting rod, and the two swing frames on the other quantitative feeding mechanism are respectively fixed to the ends of the first connecting rod and the second connecting rod.

[0009] Preferably, the quantitative feeding mechanism includes a temporary storage tube, a bracket is fixedly connected between the temporary storage tube and the bottom of the raw material barrel, the temporary storage tube and the raw material barrel are connected through a first connecting pipe, a second connecting pipe is fixedly connected to the upper side of the temporary storage tube, and a one-way valve is provided at one end of the second connecting pipe and the first connecting pipe close to the temporary storage tube.

[0010] Preferably, a linkage component is provided between the temporary storage tube and the swing frame, and the linkage component comprises a push-pull frame hinged between the two swing frames, and one end of the push-pull frame away from the swing frame is rotatably connected to a second connecting rod and a first connecting rod which are staggered with each other, and one end of the first connecting rod is hinged to a linkage piston, and the linkage piston is slidably sleeved inside the temporary storage tube; An arc-shaped limit frame is fixedly connected to the outer wall of the temporary storage tube, an arc-shaped block is slidingly sleeved inside the arc-shaped limit frame, the arc-shaped block is hinged to the second connecting rod, a T-shaped rod penetrating the outer wall of the arc-shaped limit frame is fixedly connected to the outer wall of the arc-shaped block, and a fastening bolt is threadedly connected to the outer wall of the T-shaped rod.

[0011] Preferably, the microchannel reactor comprises an outer frame fixedly connected to a mounting frame, a heat exchange oil pipe is serpentinely distributed on the inner side of the outer frame, a microchannel reaction tube is sleeved on the inner side of the heat exchange oil pipe, the head and tail ends of the heat exchange oil pipe are respectively fixed through the outer walls on both sides of the outer frame, an oil cavity is formed between the microchannel reaction tube and the heat exchange oil pipe, and the head and tail ends of the heat exchange oil pipe are respectively fixed with an injection pipe and a discharge pipe connected to the oil cavity.

[0012] Preferably, the ends of the second connecting tubes on the two quantitative feeding mechanisms away from the temporary storage tube overlap and are fixedly connected to the microchannel reaction tube.

[0013] Preferably, the oil filling mechanism includes two rocking plates respectively fixed to the ends of the third connecting rod and the second connecting rod, a push-pull rod is hinged between the two rocking plates, a transmission piston is hinged at one end of the push-pull rod away from the rocking plate, an oil filling cylinder is fixed to the upper side of the bottom plate through a top support plate, the transmission piston is slidably sleeved inside the oil filling cylinder, the filling pipe is fixedly connected to the oil filling cylinder, the oil filling cylinder and the oil tank are fixedly connected through a connecting pipe, and a one-way valve is provided on one end of the connecting pipe and the filling pipe close to the oil filling cylinder.

[0014] Preferably, the stirring mechanism includes two rocker arms respectively fixed to the ends of the fourth connecting rod and the fifth connecting rod, a transmission shaft is rotatably connected between the two rocker arms, an arc ring is sleeved on the outside of the transmission shaft, an L-shaped rod is fixed to the outer wall of the arc ring, a vertical rod is fixed to one end of the L-shaped rod, the vertical rod slides and extends to the inside of the raw material barrel, and porous stirring plates are evenly distributed on the outer wall of the vertical rod located on the inner side of the raw material barrel.

[0015] Preferably, a limiting sleeve is fixedly connected to the outer wall of the raw material barrel, and the L-shaped rod sliding sleeve is arranged inside the limiting sleeve.

[0016] The working principle and beneficial effects of the present invention are: In the present invention, two quantitative feeding mechanisms are arranged between the two raw material barrels. Since the driving mechanism can synchronously drive the two quantitative feeding mechanisms at the same time, the raw materials transported in the second connecting tubes on the two quantitative feeding mechanisms can be collided and mixed through their common ends before being sent into the microchannel reaction tube, thereby improving the mixing efficiency. In addition, according to the ratio of the two raw materials when mixed, the position of the arc block inside the arc limit frame is adjusted, so that the angle between the second connecting rod and the first connecting rod changes, so that the sliding amplitude of the linkage piston can be adjusted every time the swing frame rotates one circle, so that the appropriate amount of raw materials can be drawn or discharged, and then the two raw materials can be respectively sent into the microchannel reactor in proportion according to actual work needs, which has good applicability; In the present invention, an oil injection mechanism is arranged between the two quantitative feeding mechanisms. When the driving mechanism synchronously drives the two quantitative feeding mechanisms so that the raw materials in the two raw material barrels can be transported to the inside of the microchannel reactor in proportion for mixing, the oil injection mechanism can pump the oil in the oil tank into the oil cavity in the microchannel reactor to wrap the outer wall of the microchannel reaction tube in the outer frame to achieve heat exchange. In the present invention, a stirring mechanism is arranged on one side of the bracket, and when the driving mechanism drives the two quantitative feeding mechanisms synchronously, it can drive the swing rod to rotate, so that the arc ring can be pushed up and down through the transmission shaft, and the arc ring drives the vertical rod to move up and down through the L-shaped rod, and the vertical rod drives the porous stirring plate to shake inside one of the raw material barrels. The porous stirring plate that fluctuates up and down can mix and stir the raw materials inside the raw material barrel while the quantitative feeding mechanism is drawing or discharging, so that the raw materials are fully uniform, avoid excessive concentration of reactants in a local area, thereby preventing local overheating or solidification, and has good practical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the assembly structure of a dinitrochlorobenzene heat treatment production line proposed by the present invention; Figure 2 This is a schematic diagram of the structure of the driving mechanism proposed by the present invention; Figure 3 This is a schematic diagram of the structure of the stirring mechanism proposed by the present invention; Figure 4 This is a schematic diagram of the structure of the quantitative feeding mechanism proposed by the present invention; Figure 5 This is a schematic diagram of the structural composition of the linkage components proposed by the present invention; Figure 6 This is a schematic diagram of the structural composition of the oil injection mechanism proposed by the present invention; Figure 7 This is a schematic diagram of the internal assembly structure of the outer frame proposed by the present invention; In the figure: 1. driving mechanism; 11. motor; 12. support plate; 13. first connecting rod; 14. second connecting rod; 15. third connecting rod; 16. fourth connecting rod; 17. fifth connecting rod; 2. Bracket; 3. Raw material barrel; 4. microchannel reactor; 41. injection pipe; 42. microchannel reaction tube; 43. heat exchange oil pipe; 44. outer frame; 45. discharge pipe; 46. oil chamber; 5. quantitative feeding mechanism; 51. bracket; 52. first connecting pipe; 53. second connecting pipe; 54. temporary storage cylinder; 55. swing frame; 56. linkage component; 561. linkage piston; 562. first connecting rod; 563. second connecting rod; 564. push-pull frame; 565. arc-shaped limit frame; 566. T-bar; 567. fastening bolt; 568. arc-shaped block; 6. Oil filling mechanism; 61. Oil filling cylinder; 62. Transmission piston; 63. Connecting pipe; 64. Push-pull rod; 65. Swing plate; 66. Top support plate; 7. Mounting frame; 8. Fuel tank; 9. stirring mechanism; 91. L-shaped rod; 92. vertical rod; 93. porous stirring plate; 94. arc ring; 95. transmission shaft; 96. swing rod; 97. limit sleeve. DETAILED DESCRIPTION

[0019] The following will be combined with 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, not all of the embodiments. 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. Example 1

[0020] See also Figure 1 and Figure 2 A dinitrochlorobenzene heat treatment production line comprises: a bottom plate, two brackets 2 fixedly mounted on the upper end of the bottom plate, a raw material barrel 3 is fixedly sleeved on the inner side of the two brackets 2, a mounting frame 7 is arranged on the bottom plate between the two brackets 2, and an oil tank 8 and a microchannel reactor 4 are mounted on the mounting frame 7. Two quantitative feeding mechanisms 5 are arranged between the two raw material barrels 3, an oil injection mechanism 6 is arranged between the two quantitative feeding mechanisms 5, a stirring mechanism 9 is arranged on one side of the bracket 2, and is used to stir the raw materials in one of the raw material barrels 3, and a driving mechanism 1 is arranged above the bottom plate.

[0021] In this embodiment, the power is turned on, the driving mechanism 1 is started through the external control device, and the quantitative feeding mechanism 5, the oil injection mechanism 6 and the stirring mechanism 9 are synchronously driven by the driving mechanism 1. During the operation of the quantitative feeding mechanism 5, the raw materials in the two raw material barrels 3 can be transported to the microchannel reactor 4 in proportion for mixing, and the oil injection mechanism 6 can pump the oil in the oil tank 8 into the microchannel reactor 4 to perform heat exchange on the mixed raw materials. Example 2

[0022] See also Figure 1 , Figure 2 , Figure 4 as well as Figure 5 , a dinitrochlorobenzene heat treatment production line, including all the contents of Example 1, in addition, the driving mechanism 1 includes two support plates 12 fixed to the upper end of the bottom plate by bolts, and the first connecting rod 13, the second connecting rod 14, the third connecting rod 15, the fourth connecting rod 16 and the fifth connecting rod 17 are arranged between the two support plates 12 from left to right, and the fifth connecting rod 17 and the first connecting rod 13 are respectively rotatably connected to the two support plates 12, and a motor 11 is installed on the outer wall of one of the support plates 12 for rotating the first connecting rod 13.

[0023] Specifically, the two quantitative feeding mechanisms 5 each include two swing frames 55 arranged parallel to each other, wherein the two swing frames 55 on one quantitative feeding mechanism 5 are respectively fixed to the ends of the third connecting rod 15 and the fourth connecting rod 16, and the two swing frames 55 on the other quantitative feeding mechanism 5 are respectively fixed to the ends of the first connecting rod 13 and the second connecting rod 14.

[0024] Furthermore, the quantitative feeding mechanism 5 includes a temporary storage tube 54, a bracket 51 is fixedly connected between the temporary storage tube 54 and the bottom of the raw material barrel 3, the temporary storage tube 54 and the raw material barrel 3 are connected through a first connecting tube 52, a second connecting tube 53 is fixedly connected to the upper side of the temporary storage tube 54, and a one-way valve is provided at one end of the second connecting tube 53 and the first connecting tube 52 close to the temporary storage tube 54.

[0025] Furthermore, a linkage component 56 is provided between the temporary storage tube 54 and the swing frame 55, and the linkage component 56 includes a push-pull frame 564 hinged between the two swing frames 55, and the push-pull frame 564 is rotatably connected to a second link rod 563 and a first link rod 562 that are staggered from each other at one end away from the swing frame 55, and a linkage piston 561 is hinged at one end of the first link rod 562, and the linkage piston 561 is slidably sleeved inside the temporary storage tube 54. An arc-shaped limit frame 565 is fixedly connected to the outer wall of the temporary storage tube 54, and an arc block 568 is slidably sleeved inside the arc-shaped limit frame 565, and the arc block 568 is hinged to the second link rod 563, and a T-shaped rod 566 that penetrates the outer wall of the arc-shaped limit frame 565 is fixedly connected to the outer wall of the arc block 568, and a fastening bolt 567 is threadedly connected to the outer wall of the T-shaped rod 566.

[0026] In this embodiment, when working, the motor 11 is started, and the motor 11 drives the first connecting rod 13 to rotate through its output shaft. Under the joint action of the second connecting rod 14, the third connecting rod 15, the fourth connecting rod 16 and the fifth connecting rod 17, the quantitative feeding mechanism 5, the oil injection mechanism 6 and the stirring mechanism 9 can be driven at the same time. During the rotation of the swing frame 55, the second connecting rod 563 and the first connecting rod 562 can be pushed and pulled by the push-pull frame 564, so that the first connecting rod 562 drives the linkage piston 561 to slide back and forth inside the temporary storage tube 54. When the linkage piston 561 moves downward, the one-way valve at the end of the first connecting tube 52 opens and the one-way valve at the end of the second connecting tube 53 closes, so that the raw material in the raw material barrel 3 can be pumped into the temporary storage tube 54. When the linkage piston 561 moves upward, the one-way valve at the end of the first connecting tube 52 closes and the one-way valve at the end of the second connecting tube 53 opens, so that the raw material inside the temporary storage tube 54 can be transported to the inside of the microchannel reaction tube 42 through the second connecting tube 53.

[0027] In this embodiment, since the driving mechanism 1 can synchronously drive the two quantitative feeding mechanisms 5 at the same time, the raw materials transported in the two second connecting tubes 53 can be collided and mixed through their common ends and then sent to the inside of the microchannel reaction tube 42, so that the raw materials can be mixed in the microchannel reaction tube 42. According to the ratio of the two raw materials when mixed, the position of the arc block 568 inside the arc limit frame 565 is adjusted. When adjusting, loosen the fastening bolt 567, and slide the arc block 568 in the arc limit frame 565 through the T-bar 566, so that the angle between the second connecting rod 563 and the first connecting rod 562 changes. As the angle between the second connecting rod 563 and the first connecting rod 562 increases, the sliding amplitude of the linkage piston 561 increases every time the swing frame 55 rotates one circle, so that more raw materials can be drawn or discharged. Therefore, according to actual work needs, the two raw materials can be respectively sent to the microchannel reactor 4 in proportion. Example 3

[0028] See also Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 as well as Figure 7A dinitrochlorobenzene heat treatment production line includes all the contents of Example 2. In addition, a microchannel reactor 4 includes an outer frame 44 fixedly connected to a mounting frame 7, a heat exchange oil pipe 43 is serpentinely distributed on the inner side of the outer frame 44, a microchannel reaction tube 42 is sleeved on the inner side of the heat exchange oil pipe 43, and the heat exchange oil pipe 43 is fixedly penetrated through the outer walls on both sides of the outer frame 44 at both ends, an oil cavity 46 is formed between the microchannel reaction tube 42 and the heat exchange oil pipe 43, and an injection pipe 41 and a discharge pipe 45 connected to the oil cavity 46 are fixedly connected at both ends of the heat exchange oil pipe 43.

[0029] Furthermore, the ends of the second connecting tubes 53 on the two quantitative feeding mechanisms 5 that are away from the temporary storage tube 54 overlap and are fixedly connected to the microchannel reaction tube 42 .

[0030] Furthermore, the oil filling mechanism 6 includes two rocking plates 65 respectively fixed to the ends of the third connecting rod 15 and the second connecting rod 14, a push-pull rod 64 is hinged between the two rocking plates 65, a transmission piston 62 is hinged at one end of the push-pull rod 64 away from the rocking plate 65, an oil filling cylinder 61 is fixedly connected to the upper side of the bottom plate through a top support plate 66, the transmission piston 62 is slidably sleeved inside the oil filling cylinder 61, the injection pipe 41 is fixedly connected to the oil filling cylinder 61, the oil filling cylinder 61 is fixedly connected to the oil tank 8 through a connecting pipe 63, and a one-way valve is provided on the connecting pipe 63 and the injection pipe 41 at one end close to the oil filling cylinder 61.

[0031] In this embodiment, when the swing plate 65 rotates with the second connecting rod 14 and the third connecting rod 15, the push-pull rod 64 can be pushed and pulled, and the push-pull rod 64 drives the transmission piston 62 to slide back and forth inside the oil filling cylinder 61. When the transmission piston 62 moves backward, the one-way valve at the end of the injection pipe 41 is closed, and the one-way valve at the end of the connecting pipe 63 is opened, and the oil inside the oil tank 8 is pumped into the oil filling cylinder 61. When the transmission piston 62 is pushed forward, the one-way valve at the end of the injection pipe 41 is opened, and the one-way valve at the end of the connecting pipe 63 is closed, and the oil inside the oil filling cylinder 61 is continuously transported to the oil cavity 46 inside the heat exchange oil pipe 43 through the injection pipe 41, and the outer wall of the microchannel reaction tube 42 inside the outer frame 44 is wrapped to achieve heat exchange. The oil flowing inside the heat exchange oil pipe 43 is finally discharged through the discharge pipe 45. According to actual working requirements, the oil stored in the oil tank 8 is preferably a methyl silicone oil heat exchanger, through which the heat generated by the dinitrogen reaction is taken away. Example 4

[0032] See also Figure 1 , Figure 2 as well as Figure 3, a dinitrochlorobenzene heat treatment production line, including all the contents of embodiment 3, in addition, the stirring mechanism 9 includes two swing rods 96 respectively fixed to the ends of the fourth connecting rod 16 and the fifth connecting rod 17, a transmission shaft 95 is rotatably connected between the two swing rods 96, an arc ring 94 is sleeved on the outer side of the transmission shaft 95, an L-shaped rod 91 is fixed to the outer wall of the arc ring 94, a vertical rod 92 is fixed to one end of the L-shaped rod 91, the vertical rod 92 slides and extends to the inside of the raw material barrel 3, and the outer wall of the vertical rod 92 located inside the raw material barrel 3 is evenly distributed with porous stirring plates 93. The outer wall of the raw material barrel 3 is fixed to a limiting sleeve 97, and the L-shaped rod 91 is slidably sleeved inside the limiting sleeve 97.

[0033] In this embodiment, when the rocker arm 96 rotates with the fourth connecting rod 16 and the fifth connecting rod 17, the transmission shaft 95 can push the arc ring 94 up and down, and the arc ring 94 drives the vertical rod 92 to move up and down through the L-shaped rod 91. The vertical rod 92 drives the porous stirring plate 93 to shake inside one of the raw material barrels 3. The porous stirring plate 93 that rises and falls can mix and stir the raw materials inside the raw material barrel 3 while the quantitative feeding mechanism 5 is sucking or discharging, so as to make it fully uniform.

[0034] Working principle and use process: Before operation, the raw materials for the production of dinitrochlorobenzene are stored in two raw material barrels 3, for example, mononitrochlorobenzene and nitric acid in dinitro mixed acid are respectively installed, and dinitrochlorobenzene is generated by the reaction of mononitrochlorobenzene and nitric acid in dinitro mixed acid. When operating, the motor 11 is started, and the motor 11 drives the first connecting rod 13 to rotate through its output shaft. Under the joint action of the second connecting rod 14, the third connecting rod 15, the fourth connecting rod 16 and the fifth connecting rod 17, the quantitative feeding mechanism 5, the oil injection mechanism 6 and the stirring mechanism 9 can be driven at the same time.

[0035] During the rotation of the swing frame 55, the second link 563 and the first link 562 can be pushed and pulled by the push-pull frame 564, so that the first link 562 drives the linkage piston 561 to slide back and forth inside the temporary storage tube 54. When the linkage piston 561 moves down, the one-way valve at the end of the first connecting pipe 52 is opened, and the one-way valve at the end of the second connecting pipe 53 is closed, so that the raw material in the raw material barrel 3 can be pumped into the temporary storage tube 54. When the linkage piston 561 moves up, the one-way valve at the end of the first connecting pipe 52 is closed, and the one-way valve at the end of the second connecting pipe 53 is opened, so that the raw material inside the temporary storage tube 54 can be transported to the inside of the microchannel reaction tube 42 through the second connecting pipe 53. Since the driving mechanism 1 can synchronously drive the two quantitative feeding mechanisms 5 at the same time, the raw materials transported in the two second connecting pipes 53 can be collided and mixed through their common ends and then sent into the inside of the microchannel reaction tube 42, so that the raw materials can be mixed in the microchannel reaction tube 42. According to the ratio of the two raw materials when mixed, the position of the arc block 568 inside the arc limit frame 565 is adjusted. When adjusting, the fastening bolt 567 is loosened, and the arc block 568 is slid in the arc limit frame 565 through the T-bar 566, so that the angle between the second link 563 and the first link 562 changes. As the angle between the second link 563 and the first link 562 increases, the sliding amplitude of the linkage piston 561 increases every time the swing frame 55 rotates one circle, so that more raw materials can be drawn or discharged. Therefore, according to actual work needs, the two raw materials can be respectively sent to the microchannel reactor 4 in proportion.

[0036] When the rocker arm 96 rotates with the fourth connecting rod 16 and the fifth connecting rod 17, the transmission shaft 95 can push the arc ring 94 up and down, and the arc ring 94 drives the vertical rod 92 to move up and down through the L-shaped rod 91. The vertical rod 92 drives the porous stirring plate 93 to shake inside one of the raw material barrels 3. The porous stirring plate 93 that rises and falls can mix and stir the raw materials inside the raw material barrel 3 while the quantitative feeding mechanism 5 is sucking or discharging, so as to make it fully uniform.

[0037] In the process of the swing plate 65 rotating with the second connecting rod 14 and the third connecting rod 15, the push-pull rod 64 can be pushed and pulled, and the push-pull rod 64 drives the transmission piston 62 to slide back and forth inside the oil injection cylinder 61. When the transmission piston 62 moves backward, the one-way valve at the end of the injection pipe 41 is closed, and the one-way valve at the end of the connecting pipe 63 is opened, and the oil inside the oil tank 8 is pumped into the oil injection cylinder 61. When the transmission piston 62 is pushed forward, the one-way valve at the end of the injection pipe 41 is opened, and the one-way valve at the end of the connecting pipe 63 is closed, and the oil inside the oil injection cylinder 61 is continuously transported to the oil cavity 46 inside the heat exchange oil pipe 43 through the injection pipe 41, and the outer wall of the microchannel reaction tube 42 inside the outer frame 44 is wrapped to achieve heat exchange. The oil flowing inside the heat exchange oil pipe 43 is finally discharged through the discharge pipe 45. According to actual work requirements, the oil stored inside the oil tank 8 is preferably a methyl silicone oil heat exchanger, and the heat generated by the dinitro reaction is taken away by the methyl silicone oil heat exchanger.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dinitrochlorobenzene heat treatment production line, comprising: A bottom plate, two brackets (2) fixedly mounted on the upper end of the bottom plate, the inner sides of the two brackets (2) are fixedly sleeved with a raw material barrel (3), characterized in that a mounting frame (7) is arranged on the bottom plate between the two brackets (2), and an oil tank (8) and a microchannel reactor (4) are mounted on the mounting frame (7); Two quantitative feeding mechanisms (5) are arranged between the two raw material barrels (3), and the raw materials in the two raw material barrels (3) are respectively transported in proportion to the inside of the microchannel reactor (4) through the two quantitative feeding mechanisms (5) for mixing; An oil injection mechanism (6) is provided between the two quantitative feeding mechanisms (5) for pumping the oil inside the oil tank (8) into the microchannel reactor (4) to perform heat exchange on the mixed raw materials; A stirring mechanism (9) is provided on one side of the support (2) for stirring the raw materials inside one of the raw material barrels (3); A driving mechanism (1) is provided above the bottom plate and is used to synchronously drive the quantitative feeding mechanism (5), the oil injection mechanism (6) and the stirring mechanism (9).

2. A dinitrochlorobenzene heat treatment production line according to claim 1, characterized in that: The driving mechanism (1) comprises two support plates (12) fixedly connected to the upper end of the base plate by bolts, a first connecting rod (13), a second connecting rod (14), a third connecting rod (15), a fourth connecting rod (16) and a fifth connecting rod (17) are arranged in sequence from left to right between the two support plates (12), the fifth connecting rod (17) and the first connecting rod (13) are respectively rotatably connected to the two support plates (12), and a motor (11) is installed on the outer wall of one of the support plates (12) for rotating the first connecting rod (13).

3. A dinitrochlorobenzene heat treatment production line according to claim 2, characterized in that: The two quantitative feeding mechanisms (5) each comprise two swing frames (55) arranged in parallel with each other, wherein the two swing frames (55) on one of the quantitative feeding mechanisms (5) are respectively fixedly connected to the ends of the third connecting rod (15) and the fourth connecting rod (16), and the two swing frames (55) on the other quantitative feeding mechanism (5) are respectively fixedly connected to the ends of the first connecting rod (13) and the second connecting rod (14).

4. A dinitrochlorobenzene heat treatment production line according to claim 3, characterized in that: The quantitative feeding mechanism (5) comprises a temporary storage tube (54), a bracket (51) is fixedly connected between the temporary storage tube (54) and the bottom of the raw material barrel (3), the temporary storage tube (54) and the raw material barrel (3) are connected via a first connecting tube (52), a second connecting tube (53) is fixedly connected to the upper side of the temporary storage tube (54), and one-way valves are arranged at one end of the second connecting tube (53) and the first connecting tube (52) close to the temporary storage tube (54).

5. A dinitrochlorobenzene heat treatment production line according to claim 4, characterized in that: A linkage component (56) is provided between the temporary storage cylinder (54) and the swing frame (55), and the linkage component (56) comprises a push-pull frame (564) hinged between the two swing frames (55), and one end of the push-pull frame (564) away from the swing frame (55) is rotatably connected to a second connecting rod (563) and a first connecting rod (562) that are staggered with each other, and one end of the first connecting rod (562) is hinged to a linkage piston (561), and the linkage piston (561) is slidably sleeved inside the temporary storage cylinder (54); An arc-shaped limit frame (565) is fixedly connected to the outer wall of the temporary storage tube (54); an arc-shaped block (568) is slidably sleeved inside the arc-shaped limit frame (565); the arc-shaped block (568) is hinged to the second connecting rod (563); a T-shaped rod (566) penetrating the outer wall of the arc-shaped limit frame (565) is fixedly connected to the outer wall of the arc-shaped limit frame (565); a fastening bolt (567) is threadedly connected to the outer wall of the T-shaped rod (566).

6. A dinitrochlorobenzene heat treatment production line according to claim 5, characterized in that: The microchannel reactor (4) comprises an outer frame (44) fixedly connected to a mounting frame (7), a heat exchange oil pipe (43) is serpentinely distributed inside the outer frame (44), a microchannel reaction tube (42) is sleeved inside the heat exchange oil pipe (43), the heat exchange oil pipe (43) is respectively fixedly penetrated through the outer walls of both sides of the outer frame (44) at both ends, an oil cavity (46) is formed between the microchannel reaction tube (42) and the heat exchange oil pipe (43), and an injection pipe (41) and a discharge pipe (45) connected to the oil cavity (46) are respectively fixedly connected at both ends of the heat exchange oil pipe (43).

7. A dinitrochlorobenzene heat treatment production line according to claim 6, characterized in that: The ends of the second connecting tubes (53) on the two quantitative feeding mechanisms (5) away from the temporary storage tube (54) overlap and are fixedly connected to the microchannel reaction tube (42).

8. A dinitrochlorobenzene heat treatment production line according to claim 7, characterized in that: The oil injection mechanism (6) comprises two swing plates (65) respectively fixed to the ends of the third connecting rod (15) and the second connecting rod (14); a push-pull rod (64) is hingedly connected between the two swing plates (65); a transmission piston (62) is hingedly connected to one end of the push-pull rod (64) away from the swing plate (65); an oil injection cylinder (61) is fixedly connected to the upper side of the bottom plate via a top support plate (66); the transmission piston (62) is slidably sleeved inside the oil injection cylinder (61); the injection pipe (41) is fixedly connected to the oil injection cylinder (61); the oil injection cylinder (61) and the oil tank (8) are fixedly connected via a connecting pipe (63); and one end of the connecting pipe (63) and the injection pipe (41) close to the oil injection cylinder (61) are both provided with a one-way valve.

9. A dinitrochlorobenzene heat treatment production line according to claim 1, characterized in that: The stirring mechanism (9) comprises two swing rods (96) respectively fixed to the ends of the fourth connecting rod (16) and the fifth connecting rod (17); a transmission shaft (95) is rotatably connected between the two swing rods (96); an arc ring (94) is sleeved on the outer side of the transmission shaft (95); an L-shaped rod (91) is fixedly connected to the outer wall of the arc ring (94); a vertical rod (92) is fixedly connected to one end of the L-shaped rod (91); the vertical rod (92) slidably extends into the interior of the raw material barrel (3); and a plurality of porous stirring plates (93) are evenly distributed on the outer wall of the vertical rod (92) located inside the raw material barrel (3).

10. A dinitrochlorobenzene heat treatment production line according to claim 9, characterized in that: The outer wall of the raw material barrel (3) is fixedly connected to a limiting sleeve (97), and the L-shaped rod (91) is slidably sleeved inside the limiting sleeve (97).

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