Methyl acetate recovery reaction kettle

Abstract

The invention relates to the technical field of chemical equipment, in particular to a methyl acetate recovery reaction kettle which comprises a reaction kettle body, a first motor and a second motor are arranged at the top of the reaction kettle body, and a first inner cavity, a second inner cavity, a third inner cavity and a fourth inner cavity which are used for flowing of waste liquid are formed in the inner side of the reaction kettle body. A stirring rod used for stirring the aspartame waste liquid is arranged on the inner side of the reaction kettle, a guide assembly used for guiding the flowing direction of the waste liquid is arranged on the inner side of the reaction kettle, and a sweeping piece used for cleaning the adhesion part of the waste liquid is arranged in the guide assembly. The stirring rod is used for stirring the waste liquid, and meanwhile, the guide assembly and the cleaning piece are used for cleaning the inner wall of the reaction kettle.

Description

Technical Field

[0001] The invention relates to the technical field of chemical equipment, in particular to a methyl acetate recovery reaction kettle. Background Art

[0002] In the chemical production process, methyl acetate, as an important organic solvent and chemical raw material, is widely used in coatings, paints, inks, adhesives, and fragrances. However, in the production process of chemical products such as aspartame, a large amount of wastewater containing methyl acetate is generated. If these wastewaters are directly discharged, they will not only pollute the environment, but also waste precious methyl acetate resources.

[0003] Among them, for aspartame production wastewater, a reactor is needed to separate methyl acetate from wastewater, but aspartame production wastewater may contain various organic matter, inorganic salts, acid and alkali substances and possible additives, etc. These components may undergo chemical reactions or physical changes under specific temperature and pressure conditions, such as precipitation, crystallization or colloid formation, and thus may adhere to the inner wall of the reactor. Especially when the wastewater contains high molecular weight compounds or viscous substances, this adhesion phenomenon may be more obvious;

[0004] In view of this, we propose a methyl acetate recovery reactor. Summary of the invention

[0005] The object of the present invention is to provide a methyl acetate recovery reactor to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides a methyl acetate recovery reactor, comprising a reactor, wherein a No. 1 motor and a No. 2 motor are arranged on the top of the reactor, and a No. 1 inner cavity, a No. 2 inner cavity, a No. 3 inner cavity and a No. 4 inner cavity for the flow of waste liquid are arranged on the inner side of the reactor, a stirring rod for stirring aspartame waste liquid is arranged on the inner side of the reactor, a guide component for guiding the flow direction of the waste liquid is arranged on the inner side of the reactor, and a cleaning member for cleaning the adhered part of the waste liquid is arranged in the guide component, wherein:

[0007] The stirring rod is used to stir the waste liquid through the driving of the first motor and the second motor, and the guide assembly and the cleaning member are used to clean the inner wall of the reactor.

[0008] As a preferred embodiment of the present invention, a feed inlet is provided at the top of the reactor, air outlets are provided at both sides of the middle end of the reactor, and a water outlet is provided at the bottom of the reactor.

[0009] As a preferred embodiment of the present invention, the No. 1 motor and the No. 2 motor are both fixedly connected to the top of the reactor, the output end of the No. 1 motor is fixedly connected to a reducer, the reducer is fixedly connected to a rotating rod at the end away from the No. 1 motor, and the lower end outer wall of the rotating rod is fixedly connected to a stirring rod.

[0010] As a preferred embodiment of the present invention, the lower end of the rotating rod is threaded, the lower end of the rotating rod is fixedly connected to a rotating ring, a telescopic connecting rod is fixedly connected to one side of the outer wall of the rotating ring, the telescopic connecting rod is fixedly connected to a fan-shaped piece on the side away from the rotating ring, and the middle top of the telescopic connecting rod is rotatably connected to a limiting column.

[0011] As a preferred embodiment of the present invention, an annular partition is fixedly connected to the inner side of the reactor, and a baffle plate No. 1 and a baffle plate No. 2 are slidably connected to the inner side of the annular partition, a fan-shaped hole is fixedly connected to one side of the baffle plate No. 2, and the fan-shaped hole is the same size as the fan-shaped part, a threaded part is fixedly connected to the bottom of the baffle plate No. 2, and the limit column is slidably connected to the inner side of the threaded part.

[0012] As a preferred embodiment of the present invention, the output end of the No. 2 motor is fixedly connected to the No. 1 threaded rod, the upper end outer wall of the No. 1 threaded rod is sleeved with a transmission belt, the transmission belt is located above the No. 1 baffle, the inner side of the annular partition is fixedly connected with an inlet pipe, the inlet pipe is connected to the feed port, and the inner side of the annular partition is provided with the No. 1 inner cavity, the No. 2 inner cavity, the No. 3 inner cavity and the No. 4 inner cavity.

[0013] As a preferred embodiment of the present invention, the inner sides of the upper and lower ends of the annular partition are slidably connected with blocking chambers, the top of the blocking chamber is fixedly connected with a bubble cap, the rotating rod passes through baffle No. 1, baffle No. 2 and the blocking chamber, the upper blocking chamber and the baffle No. 1 are between inner cavity No. 1, the upper blocking chamber on the side away from the inlet pipe is inner cavity No. 2, the upper blocking chamber and the lower blocking chamber are between inner cavity No. 3, and the No. 4 inner cavity is between the No. 2 baffle, the annular partition and the reactor.

[0014] As a preferred embodiment of the present invention, the guide assembly includes an extension rod, the extension rod is rotatably connected to the outer wall of the rotating rod, the bottom of the extension rod away from the rotating rod is fixedly connected to a heating rod, the bottom of the extension rod close to the rotating rod is fixedly connected to a No. 1 gear, and the outer side of the No. 1 gear is meshedly connected to a No. 2 gear, wherein:

[0015] The extension rod, the heating rod, the first gear and the second gear are all arranged inside the blocking chamber.

[0016] As a preferred embodiment of the present invention, a No. 2 threaded rod is fixedly connected to the outer wall of the middle end of the No. 2 gear, a sliding part is threadedly connected to the outer wall of the No. 2 threaded rod, a fixed column is provided on the outer side of the sliding part, a cleaning part is fixedly connected to one side of the sliding part, the fixed column is rotatably connected to the outer wall of the rotating rod, and the fixed column is located between the upper and lower blocking chambers.

[0017] As a preferred embodiment of the present invention, the No. 1 threaded rod is connected to threads of the blocking chamber at the upper and lower ends.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the methyl acetate recovery reactor, the staff pours the aspartame wastewater into the reactor from the feed port, flows from the inlet pipe to the upper inner cavity No. 1, flows to the inner cavity No. 3 again after passing through the inner cavity No. 2, and blocks the bubble cap at the top of the chamber below, and finally flows to the inner cavity No. 4, where the stirring rod is driven by the rotating rod for stirring. The waste gas flows through the inner cavity No. 4 to the position between the annular partition and the reactor, and finally sprays out from the gas outlet, completing the separation of methyl acetate in the aspartame waste liquid.

[0020] 2. In the methyl acetate recovery reactor, the fixed column rotates together with the rotating rod, and during the rotation of the fixed column, the No. 2 gear is driven to rotate together with the No. 1 gear and the No. 2 threaded rod. At this time, the No. 2 threaded rod drives the sliding part and the cleaning part to slide up and down. At this time, during the rotation of the fixed column, the aspartame waste liquid in the No. 3 inner cavity is continuously stirred, and the waste liquid is continuously pushed to the connection position of the No. 4 inner cavity. After the reactor completes the separation and completely discharges methyl acetate from the water outlet, the staff controls the cleaning part in the control room to spray cleaning liquid to clean each inner cavity.

[0021] 3. In the methyl acetate recovery reactor, the rotating ring at the bottom of the second baffle is driven to rotate by the rotating rod during the rotation process, and the rotating ring drives the telescopic connecting rod and the fan-shaped member to rotate together. At this time, the limit column at the top of the telescopic connecting rod slides in the threaded member, and drives the telescopic connecting rod to extend outward, and the fan-shaped member blocks the fan-shaped hole, and finally the cleaning liquid stays in the third inner cavity to facilitate cleaning; BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall three-dimensional schematic diagram of the methyl acetate recovery reactor of the present invention;

[0023] Figure 2 It is a schematic cross-sectional view of the whole methyl acetate recovery reactor of the present invention;

[0024] Figure 3 It is an overall longitudinal cross-sectional schematic diagram of the methyl acetate recovery reactor of the present invention;

[0025] Figure 4 It is a three-dimensional schematic diagram of the inner cavity of the methyl acetate recovery reactor of the present invention;

[0026] Figure 5 It is a three-dimensional schematic diagram of the cutaway view of the inner cavity of the methyl acetate recovery reactor of the present invention;

[0027] Figure 6 It is a three-dimensional schematic diagram of the internal guide assembly of the methyl acetate recovery reactor of the present invention;

[0028] Figure 7 It is a three-dimensional schematic diagram of the internal guide assembly of the methyl acetate recovery reactor of the present invention;

[0029] Figure 8 It is a three-dimensional schematic diagram of the sealing assembly of the methyl acetate recovery reactor of the present invention;

[0030] The meaning of each number in the figure is:

[0031] 1. Reactor; 11. No. 1 motor; 111. Speed ​​reducer; 112. Rotating rod; 1121. Rotating ring; 1122. Telescopic connecting rod; 1123. Fan-shaped piece; 113. Stirring rod; 12. No. 2 motor; 121. No. 1 threaded rod; 122. Driving belt; 13. Inlet; 14. Air outlet; 15. Water outlet; 16. Annular partition; 161. No. 1 baffle; 162. No. 2 baffle; 1621. Fan-shaped hole; 1622. Threaded piece; 17. Blocking chamber; 171. Bubble cap; 2. Inlet pipe; 21. No. 1 inner cavity; 22. No. 2 inner cavity; 23. No. 3 inner cavity; 24. No. 4 inner cavity;

[0032] 3. Guide assembly; 31. Extension rod; 32. Heating rod; 33. Gear No. 1; 34. Gear No. 2; 341. Threaded rod No. 2; 35. Sliding part; 351. Cleaning part; 36. Fixed column. DETAILED DESCRIPTION

[0033] The following will be combined with the accompanying drawings in 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.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] Embodiment 1

[0036] See also Figure 1-Figure 8 As shown, this embodiment provides a methyl acetate recovery reactor, including a reactor 1, a No. 1 motor 11 and a No. 2 motor 12 are arranged on the top of the reactor 1, a No. 1 inner cavity 21, a No. 2 inner cavity 22, a No. 3 inner cavity 23 and a No. 4 inner cavity 24 for the flow of waste liquid are arranged on the inner side of the reactor 1, a stirring rod 113 for stirring aspartame waste liquid is arranged on the inner side of the reactor 1, a guide component 3 for guiding the flow direction of the waste liquid is arranged on the inner side of the reactor 1, and a cleaning part 351 for cleaning the adhered part of the waste liquid is arranged in the guide component 3, wherein: the stirring rod 113 is used to complete the stirring of the waste liquid by driving the No. 1 motor 11 and the No. 2 motor 12, and the inner wall of the reactor is cleaned by the guide component 3 and the cleaning part 351.

[0037] like Figure 2-Figure 3 As shown, a feed inlet 13 is provided at the top of the reactor 1, air outlets 14 are provided on both sides of the middle end of the reactor 1, a water outlet 15 is provided at the bottom of the reactor 1, motor No. 11 and motor No. 2 12 are both fixedly connected to the top of the reactor 1, a reducer 111 is fixedly connected to the output end of motor No. 11, a rotating rod 112 is fixedly connected to the end of the reducer 111 away from motor No. 11, a stirring rod 113 is fixedly connected to the outer wall of the lower end of the rotating rod 112, the lower end of the rotating rod 112 is threaded, a rotating ring 1121 is fixedly connected to the lower end of the rotating rod 112, a telescopic connecting rod 1122 is fixedly connected to one side of the outer wall of the rotating ring 1121, a fan-shaped piece 1123 is fixedly connected to the telescopic connecting rod 1122 on the side away from the rotating ring 1121, and a limiting column is rotatably connected to the top of the middle end of the telescopic connecting rod 1122.

[0038] like Figure 4-Figure 6As shown, an annular partition 16 is fixedly connected to the inner side of the reactor 1, and a baffle plate 161 and a baffle plate 162 are slidably connected to the inner side of the annular partition 16, and a fan-shaped hole 1621 is fixedly connected to one side of the baffle plate 162, and the fan-shaped hole 1621 is the same size as the fan-shaped part 1123. A threaded part 1622 is fixedly connected to the bottom of the baffle plate 162, and a limit column is slidably connected to the inner side of the threaded part 1622. A threaded rod 121 is fixedly connected to the output end of the second motor 12, and a transmission belt 122 is sleeved on the outer wall of the upper end of the threaded rod 121, and the transmission belt 122 is located above the baffle plate 161. An inlet pipe 2 is fixedly connected to the inner side of the annular partition 16, and the inlet pipe 2 is connected to the feed port 13. The inner side of the annular partition 16 is provided with a No. 1 inner cavity 21, a No. 2 inner cavity 22, a No. 3 inner cavity 23 and a No. 4 inner cavity 24, the inner sides of the upper and lower ends of the annular partition 16 are slidably connected with blocking chambers 17, the top of the blocking chamber 17 is fixedly connected with a bubble cap 171, the rotating rod 112 passes through the No. 1 baffle 161, the No. 2 baffle 162 and the blocking chamber 17, the No. 1 inner cavity 21 is between the upper blocking chamber 17 and the No. 1 baffle 161, the No. 2 inner cavity 22 is on the side of the upper blocking chamber 17 away from the inlet pipe 2, the No. 3 inner cavity 23 is between the upper blocking chamber 17 and the lower blocking chamber 17, the No. 4 inner cavity 24 is between the No. 2 baffle 162, the annular partition 16 and the reactor 1, and the No. 1 threaded rod 121 is connected to the threads of the blocking chamber 17 at the upper and lower ends.

[0039] like Figure 7-Figure 8 The guide assembly 3 shown includes an extension rod 31, which is rotatably connected to the outer wall of the rotating rod 112. The extension rod 31 is fixedly connected to a heating rod 32 at the bottom of the end away from the rotating rod 112. The extension rod 31 is fixedly connected to a first gear 33 at the bottom of the end close to the rotating rod 112. The outer side of the first gear 33 is meshed with a second gear 34, wherein: the extension rod 31, the heating rod 32, the first gear 33 and the second gear 34 are all arranged on the inner side of the blocking chamber 17, the middle end outer wall of the second gear 34 is fixedly connected to a second threaded rod 341, the outer wall of the second threaded rod 341 is threadedly connected to a sliding member 35, a fixed column 36 is arranged on the outer side of the sliding member 35, a cleaning member 351 is fixedly connected to one side of the sliding member 35, the fixed column 36 is rotatably connected to the outer wall of the rotating rod 112, and the fixed column 36 is located between the upper and lower blocking chambers 17.

[0040] It can be seen from this that when it is necessary to separate aspartame wastewater to recover methyl acetate, Figure 2-Figure 5As shown, the staff pours the aspartame wastewater into the reactor 1 from the feed port 13, flows from the inlet pipe 2 to the upper inner cavity 21, and passes through the inner side of the bubble 171. At this time, the main function of the bubble 171 is to change the direction of gas flow, forcing the bubble 171 to blow out bubbles from the peripheral gap, thereby increasing the contact between the bubble 171 and the waste liquid, and at the same time, the waste liquid is heated and evaporated under the action of the heating rod 32, and then passes through the bubble 171 and the second inner cavity 22 and then flows to the third inner cavity 23 again, and blocks the bubble 171 at the top of the chamber 17 below, and finally flows to the fourth inner cavity 24, and uses the rotating rod 112 to drive the stirring rod 113 to stir, and the waste gas flows through the fourth inner cavity 24 to the position between the annular partition 16 and the reactor 1, and finally sprays out from the gas outlet 14, completing the separation of methyl acetate in the aspartame waste liquid;

[0041] It should be noted that when aspartame flows from the second inner cavity 22 to the third inner cavity 23, the fixed column 36 rotates together with the rotation of the rotating rod 112, and during the rotation of the fixed column 36, the second gear 34 is driven to rotate around the rack of the first gear 33, and during the rotation of the second gear 34, the second threaded rod 341 is driven to rotate. At this time, the second threaded rod 341 drives the sliding member 35 and the cleaning member 351 to slide up and down. At this time, during the rotation of the fixed column 36, the inner cavity 23 of the third inner cavity 23 is continuously cleaned. The aspartame waste liquid is stirred and continuously pushed to the connection position of the No. 3 inner cavity 23 and the No. 4 inner cavity 24. The heating effect in the first entry into the No. 1 inner cavity 21 is different from the heating effect in the No. 3 inner cavity 23. Because the temperature in the No. 3 inner cavity 23 is higher, the adhesion effect inside it is better, so it is easier to adhere to the inner wall of the annular partition 16. After the reactor 1 completes the separation and completely discharges the methyl acetate from the water outlet 15, the staff controls the cleaning part 351 in the control room to spray the cleaning liquid to clean each inner cavity;

[0042] During cleaning, the rotating rod 112 drives the rotating ring 1121 at the bottom of the second baffle 162 to rotate, and the rotating ring 1121 drives the telescopic connecting rod 1122 and the fan-shaped member 1123 to rotate together. At this time, the limiting column at the top of the telescopic connecting rod 1122 slides in the threaded member 1622, and drives the telescopic connecting rod 1122 to extend outward, and the fan-shaped member 1123 blocks the fan-shaped hole 1621, and finally the cleaning liquid stays in the third inner cavity 23 to facilitate cleaning;

[0043] In addition, the No. 1 threaded rod 121 is driven to rotate by the No. 2 motor 12, and at the same time, the No. 1 threaded rod 121 drives the blocking chambers 17 on the upper and lower sides to slide up and down, so that the size of the No. 1 inner cavity 21 and the No. 4 inner cavity 24 increases or decreases to adapt to different amounts of waste liquid injected.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A methyl acetate recovery reactor, comprising a reactor (1), characterized in that: The top of the reactor (1) is provided with a No. 1 motor (11) and a No. 2 motor (12); the inner side of the reactor (1) is provided with a No. 1 inner cavity (21), a No. 2 inner cavity (22), a No. 3 inner cavity (23) and a No. 4 inner cavity (24) for the flow of waste liquid; the inner side of the reactor (1) is provided with a stirring rod (113) for stirring the aspartame waste liquid; the inner side of the reactor (1) is provided with a guide component (3) for guiding the flow direction of the waste liquid; the guide component (3) is provided with a cleaning member (351) for cleaning the adhered part of the waste liquid, wherein: The stirring rod (113) is used to stir the waste liquid by driving the first motor (11) and the second motor (12), and the inner wall of the reaction kettle is cleaned by using the guide assembly (3) and the cleaning member (351).

2. A methyl acetate recovery reactor according to claim 1, characterized in that: The top of the reaction kettle (1) is provided with a material inlet (13), both sides of the middle end of the reaction kettle (1) are provided with air outlets (14), and the bottom of the reaction kettle (1) is provided with a water outlet (15).

3. A methyl acetate recovery reactor according to claim 2, characterized in that: The first motor (11) and the second motor (12) are both fixedly connected to the top of the reaction kettle (1); the output end of the first motor (11) is fixedly connected to a reducer (111); the reducer (111) is fixedly connected to a rotating rod (112) at an end away from the first motor (11); and the lower end outer wall of the rotating rod (112) is fixedly connected to a stirring rod (113).

4. A methyl acetate recovery reactor according to claim 3, characterized in that: The lower end of the rotating rod (112) is threaded, and the lower end of the rotating rod (112) is fixedly connected to a rotating ring (1121), and a telescopic connecting rod (1122) is fixedly connected to one side of the outer wall of the rotating ring (1121), and a fan-shaped piece (1123) is fixedly connected to the telescopic connecting rod (1122) on a side away from the rotating ring (1121), and the middle top of the telescopic connecting rod (1122) is rotatably connected to a limiting column.

5. A methyl acetate recovery reactor according to claim 4, characterized in that: An annular baffle (16) is fixedly connected to the inner side of the reaction kettle (1), a first baffle (161) and a second baffle (162) are slidably connected to the inner side of the annular baffle (16), a fan-shaped hole (1621) is fixedly connected to one side of the second baffle (162), the fan-shaped hole (1621) is the same size as the fan-shaped part (1123), a threaded part (1622) is fixedly connected to the bottom of the second baffle (162), and the limiting column is slidably connected to the inner side of the threaded part (1622).

6. A methyl acetate recovery reactor according to claim 5, characterized in that: The output end of the No. 2 motor (12) is fixedly connected to the No. 1 threaded rod (121); the outer wall of the upper end of the No. 1 threaded rod (121) is sleeved with a transmission belt (122); the transmission belt (122) is located above the No. 1 baffle (161); the inner side of the annular partition (16) is fixedly connected to an inlet pipe (2); the inlet pipe (2) is connected to the feed port (13); the inner side of the annular partition (16) is provided with a No. 1 inner cavity (21), a No. 2 inner cavity (22), a No. 3 inner cavity (23) and a No. 4 inner cavity (24).

7. A methyl acetate recovery reactor according to claim 6, characterized in that: The inner sides of the upper and lower ends of the annular partition (16) are slidably connected to blocking chambers (17), the top of the blocking chamber (17) is fixedly connected to a bubble cap (171), the rotating rod (112) passes through the first baffle (161), the second baffle (162) and the blocking chamber (17), the first inner cavity (21) is between the upper blocking chamber (17) and the first baffle (161), the second inner cavity (22) is on the side of the upper blocking chamber (17) away from the inlet pipe (2), the third inner cavity (23) is between the upper blocking chamber (17) and the lower blocking chamber (17), and the fourth inner cavity (24) is between the second baffle (162), the annular partition (16) and the reactor (1).

8. A methyl acetate recovery reactor according to claim 7, characterized in that: The guide assembly (3) includes an extension rod (31), the extension rod (31) being rotatably connected to the outer wall of the rotating rod (112), the bottom of the extension rod (31) being fixedly connected to a heating rod (32) at one end away from the rotating rod (112), the bottom of the extension rod (31) being fixedly connected to a first gear (33) at one end close to the rotating rod (112), the outer side of the first gear (33) being meshingly connected to a second gear (34), wherein: The extension rod (31), the heating rod (32), the first gear (33) and the second gear (34) are all arranged inside the blocking chamber (17).

9. A methyl acetate recovery reactor according to claim 8, characterized in that: A second threaded rod (341) is fixedly connected to the outer wall of the middle end of the second gear (34), a sliding member (35) is threadedly connected to the outer wall of the second threaded rod (341), a fixing column (36) is arranged on the outer side of the sliding member (35), a cleaning member (351) is fixedly connected to one side of the sliding member (35), the fixing column (36) is rotatably connected to the outer wall of the rotating rod (112), and the fixing column (36) is located between the upper and lower blocking chambers (17).

10. A methyl acetate recovery reactor according to claim 9, characterized in that: The first threaded rod (121) is threadedly connected to the blocking chamber (17) at the upper and lower ends.

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