Raw material conveying device for manufacturing chloromethyl methyl ether

Abstract

The utility model belongs to the field of chloromethyl methyl ether raw material conveying devices, and particularly relates to a raw material conveying device for chloromethyl methyl ether manufacturing. A methanol inlet and a formaldehyde inlet are fixedly connected to the side wall of the bottom end of the reaction furnace; a hydrogen chloride input pipe is fixedly connected to the side surface of the case; a gas channel corresponding to the hydrogen chloride input pipe is formed in the case; methyl alcohol is introduced into the reaction furnace from the methyl alcohol inlet, formaldehyde is introduced into the reaction furnace from the formaldehyde inlet, after the methyl alcohol and the formaldehyde are fully mixed, an internal air pump of the hydrogen chloride gas conversion box is driven immediately, and a hydrogen chloride solution is introduced into the machine box through the hydrogen chloride input pipe, so that hydrogen chloride gas passes through a mixed solution of formaldehyde and methyl alcohol from bottom to top; finally carrying out reaction; the methanol inlet and the formaldehyde inlet are oppositely arranged, so that the mixing rate of formaldehyde and methanol is increased, hydrogen chloride gas passes through a solution from bottom to top through the hydrogen chloride input pipe on the side wall of the case, and the reaction rate of raw materials is increased.

Description

Technical Field

[0001] The utility model belongs to the field of chloromethyl methyl ether raw material transmission devices, in particular to a raw material transmission device for producing chloromethyl methyl ether. Background Art

[0002] Chloromethyl methyl ether is a chloromethylation reagent used in the manufacture of anion exchange resins and can also be used as an expander and reactant in other chemical reactions. The synthesis of chloromethyl methyl ether is essentially a mass transfer process based on chemical absorption. The most common method for producing chloromethyl methyl ether is to introduce hydrogen chloride gas into a mixture of methanol and formaldehyde.

[0003] At present, in the raw material transmission device of chloromethyl methyl ether, the gas and liquid phases can only meet around the air duct. The gas-liquid contact area is small, and equilibrium can only be achieved by diffusion between molecules. Therefore, the output rate of chloromethyl methyl ether is low and the content of harmful gases in the exhaust gas is high, which ultimately leads to a long production cycle and serious air pollution.

[0004] To this end, the utility model provides a raw material transmission device for producing chloromethyl methyl ether. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the utility model to solve the technical problem is as follows: a raw material transmission device for producing chloromethyl methyl ether comprises a bottom plate; a chassis is fixedly connected to the top of the bottom plate; a reaction furnace is fixedly connected to the side wall of the bottom end of the reaction furnace; the methanol inlet and the formaldehyde inlet are arranged opposite to each other; a hydrogen chloride input pipe is fixedly connected to the side of the chassis; a gas channel is opened in the chassis corresponding to the hydrogen chloride input pipe; a hydrogen chloride gas conversion box is fixedly connected to the end of the hydrogen chloride input pipe away from the chassis; the relative arrangement of the methanol inlet and the formaldehyde inlet improves the mixing rate of formaldehyde and methanol, and the hydrogen chloride gas passes through the solution from bottom to top through the hydrogen chloride input pipe on the side wall of the chassis, thereby improving the reaction rate of the raw materials.

[0007] Preferably, a turntable is fixedly connected to the top of the chassis; a rotating shaft is rotatably connected to the top of the turntable; a stirring rod is fixedly connected to the side wall of the rotating shaft; the stirring rods are arranged at equal angles; the stirring rods are divided into two layers, upper and lower; a stirring blade is fixedly connected between the two corresponding stirring rods; this feature improves the mixing rate of formaldehyde and methanol through the stirring rods and the stirring blades, improves the reaction rate of hydrogen chloride gas and the formaldehyde-methanol mixed solution, saves reaction time, improves production efficiency, and increases the output of chloromethyl methyl ether.

[0008] Preferably, the turntable is provided with a gas channel corresponding to the internal gas channel of the chassis; the rotating shaft is provided with a gas channel corresponding to the internal gas channel of the turntable; a gas channel is provided inside the stirring rod; air holes are provided at the end of the stirring rod; the air holes are densely and equidistantly arranged; this item optimizes the reaction process, improves the conversion rate of hydrogen chloride gas, and increases the reaction rate by coordinating the gas channels of multiple components.

[0009] Preferably, a support ring is fixed to the bottom of the reactor; a support rod is fixed to the bottom of the support ring; the bottom end of the support rod is fixed to the bottom plate; multiple support rods are arranged in a circular array; this increases the stability of the transmission device, ensures the stable production of chloromethyl methyl ether, and improves production quality.

[0010] Preferably, a fixing block is fixedly connected to the top of the reactor; a connecting pipe is fixedly connected to the side wall of the fixing block; one end of the connecting pipe away from the fixing block is fixedly connected to a pure water recovery tank; a connecting pipe is fixedly connected to the top of the pure water recovery tank; the other end of the connecting pipe at the top of the pure water recovery tank is fixedly connected to the hydrogen chloride gas conversion tank; this improves the utilization rate of hydrogen chloride, reduces waste, and is conducive to improving production quality.

[0011] Preferably, a rubber pad is fixed to the bottom of the base plate; this improves the stability of the transmission device and ensures stable production.

[0012] Preferably, a sealing rubber ring is fixed to the bottom of the fixing block; this improves the sealing performance of the transmission device and reduces safety hazards.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The utility model discloses a raw material transmission device for producing chloromethyl methyl ether. The relative arrangement of the methanol inlet and the formaldehyde inlet increases the mixing rate of formaldehyde and methanol. The hydrogen chloride inlet pipe on the side wall of the chassis allows hydrogen chloride gas to pass through the solution from bottom to top, thereby increasing the raw material reaction rate.

[0015] 2. The raw material transmission device for producing chloromethyl methyl ether described in the utility model increases the mixing rate of formaldehyde and methanol through the stirring rod and stirring blades, increases the reaction rate of hydrogen chloride gas and the formaldehyde-methanol mixed solution, saves reaction time, improves production efficiency, and increases the output of chloromethyl methyl ether. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 This is a schematic structural diagram of the methanol inlet in the present utility model;

[0019] Figure 3 It is a structural diagram of the reactor in the utility model;

[0020] Figure 4 It is a structural diagram of the rotating shaft of the utility model.

[0021] In the figure: 1. Base plate; 2. Reactor; 3. Support ring; 4. Support rod; 5. Methanol inlet; 6. Fixing block; 7. Connecting pipe; 8. Pure water recovery tank; 9. Hydrogen chloride gas conversion tank; 10. Hydrogen chloride input pipe; 11. Chassis; 12. Formaldehyde inlet; 13. Rotating shaft; 14. Stirring rod; 15. Stirring blade; 16. Air hole; 17. Turntable; 18. Rubber pad; 19. Sealing rubber ring. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] Specific examples are given below.

[0024] like Figures 1 to 3 As shown, a raw material transmission device for producing chloromethyl methyl ether according to an embodiment of the present invention comprises a bottom plate 1; a chassis 11 is fixedly connected to the top of the bottom plate 1; a reaction furnace 2 is fixedly connected to the side wall of the bottom end of the reaction furnace 2; the methanol inlet 5 and the formaldehyde inlet 12 are arranged opposite to each other; a hydrogen chloride input pipe 10 is fixedly connected to the side of the chassis 11; a gas channel is opened in the chassis 11 corresponding to the hydrogen chloride input pipe 10; a hydrogen chloride gas conversion box 9 is fixedly connected to the end of the hydrogen chloride input pipe 10 away from the chassis 11; when working, methanol is transferred from the methanol inlet 5 to the formaldehyde inlet 12; Inlet 5 is introduced into reactor 2, and formaldehyde is introduced into reactor 2 through formaldehyde inlet 12. After the two are fully mixed, the internal air pump of hydrogen chloride gas conversion box 9 is immediately activated to introduce hydrogen chloride solution into chassis 11 through hydrogen chloride inlet pipe 10. Hydrogen chloride gas then enters reactor 2 from bottom to top, passes through the mixture of formaldehyde and methanol from bottom to top, and finally reacts. This step increases the mixing rate of formaldehyde and methanol by the relative arrangement of methanol inlet 5 and formaldehyde inlet 12. Through hydrogen chloride inlet pipe 10 on the side wall of chassis 11, hydrogen chloride gas passes through the solution from bottom to top, thereby increasing the reaction rate of the raw materials.

[0025] like Figure 1 、 Figure 3 and Figure 4As shown, a turntable 17 is fixedly connected to the top of the chassis 11; a rotating shaft 13 is rotatably connected to the top of the turntable 17; a stirring rod 14 is fixedly connected to the side wall of the rotating shaft 13; the stirring rod 14 is set at equal angles; the stirring rod 14 is divided into two layers, upper and lower; a stirring blade 15 is fixedly connected between the two corresponding stirring rods 14 above and below; during operation, after formaldehyde and methanol are introduced into the interior of the reactor 2, the turntable 17 can be driven to rotate the rotating shaft 13, and the formaldehyde and methanol are quickly mixed with the help of the stirring of the stirring rod 14 and the stirring blade 15. After the formaldehyde and methanol are mixed, the turntable 17 can still be driven to keep the internal stirring of the reactor 2, thereby allowing the raw materials to contact quickly; this feature improves the mixing rate of formaldehyde and methanol through the stirring rod 14 and the stirring blade 15, improves the reaction rate of hydrogen chloride gas and the formaldehyde-methanol mixed solution, saves reaction time, improves production efficiency, and increases the output of chloromethyl methyl ether.

[0026] like Figure 1 、 Figure 3 and Figure 4 As shown, the turntable 17 is provided with a gas passage corresponding to the internal gas passage of the chassis 11; the rotating shaft 13 is provided with a gas passage corresponding to the internal gas passage of the turntable 17; the stirring rod 14 is provided with a gas passage; the end of the stirring rod 14 is provided with an air hole 16; the air holes 16 are densely and equidistantly arranged; during operation, after the formaldehyde and methanol are mixed, the internal air pump of the hydrogen chloride gas conversion box 9 can be driven to introduce the hydrogen chloride gas into the rotating shaft 13 through the hydrogen chloride inlet pipe 10, the internal gas passage of the chassis 11 and the internal gas passage of the turntable 17. The hydrogen chloride gas enters the internal gas passages of the multiple stirring rods 14 from the rotating shaft 13 and emerges from the dense air holes 16. During this process, the rotation of the rotating shaft 13 can be maintained; this feature optimizes the reaction process, improves the conversion rate of the hydrogen chloride gas, and increases the reaction rate by coordinating the gas passages of multiple components.

[0027] like Figures 1 to 3 As shown, a support ring 3 is fixedly connected to the bottom of the reactor 2; a support rod 4 is fixedly connected to the bottom of the support ring 3; the bottom end of the support rod 4 is fixedly connected to the bottom plate 1; multiple support rods 4 are arranged in a circular array; during operation, under the influence of the weight of the interior of the reactor 2 and the transmission device, the support ring 3 will assist the chassis 11 in bearing force. When the device as a whole is subjected to tangential force, the multiple support rods 4 cooperate with each other to provide shear resistance; this increases the stability of the transmission device, ensures the stable production of chloromethyl methyl ether, and improves production quality.

[0028] like Figure 1 and Figure 2As shown, a fixing block 6 is fixedly connected to the top of the reactor 2; a connecting pipe 7 is fixedly connected to the side wall of the fixing block 6; a pure water recovery tank 8 is fixedly connected to one end of the connecting pipe 7 away from the fixing block 6; a connecting pipe 7 is fixedly connected to the top of the pure water recovery tank 8; the other end of the connecting pipe 7 at the top of the pure water recovery tank 8 is fixedly connected to a hydrogen chloride gas conversion tank 9; during operation, unreacted hydrogen chloride and hydrogen chloride gas generated by the reaction enter the pure water recovery tank 8 through the fixing block 6 and the connecting pipe 7, and are dissolved in the water inside the pure water recovery tank 8 to form a hydrogen chloride solution. After the hydrogen chloride solution is formed, the hydrogen chloride solution in the pure water recovery tank 8 can be introduced into the hydrogen chloride gas conversion tank 9 and converted back into hydrogen chloride gas. This improves the utilization rate of hydrogen chloride, reduces waste, and is conducive to improving production quality.

[0029] like Figure 2 As shown, a rubber pad 18 is fixed to the bottom of the base plate 1; during operation, when the transmission device shakes under the action of the stirring device and external force in the reactor 2, the rubber pad 18 plays a buffering role; this improves the stability of the transmission device and ensures stable production.

[0030] like Figure 1 As shown, a sealing rubber ring 19 is fixed to the bottom of the fixing block 6; when working, the fixing block 6 connects the reaction furnace 2 and the connecting pipe 7 to prevent the connecting pipe 7 from falling off, thereby improving the sealing performance of the transmission device and reducing safety hazards.

[0031] During operation, methanol is introduced into the reactor 2 from the methanol inlet 5, and formaldehyde is introduced into the reactor 2 from the formaldehyde inlet 12. After the two are fully mixed, the internal air pump of the hydrogen chloride gas conversion box 9 is immediately driven to introduce the hydrogen chloride solution into the chassis 11 through the hydrogen chloride inlet pipe 10, so that the hydrogen chloride gas enters the reactor 2 from bottom to top, passes through the mixed liquid of formaldehyde and methanol from bottom to top, and finally reacts. After the formaldehyde and methanol are introduced into the reactor 2, the turntable 17 can be driven to rotate the rotating shaft 13. With the help of the stirring rod 14 and the stirring blade 15, the formaldehyde and methanol are quickly mixed. After the formaldehyde and methanol are mixed, the turntable 17 can still be driven to keep the internal stirring of the reactor 2, so that the raw materials are quickly contacted. After the formaldehyde and methanol are mixed, the internal air pump of the hydrogen chloride gas conversion box 9 can be driven to pass the hydrogen chloride gas through the hydrogen chloride inlet pipe 10, the gas channel inside the chassis 11 and the gas channel inside the turntable 17. The body channel is introduced into the rotating shaft 13, and the hydrogen chloride gas enters the internal gas channel of the multiple stirring rods 14 from the rotating shaft 13 and emerges from the dense air holes 16. During this process, the rotation of the rotating shaft 13 can be maintained. Under the influence of the weight of the interior of the reactor 2 and the transmission device, the support ring 3 will assist the chassis 11 in bearing the force. When the device as a whole is subjected to tangential force, the multiple support rods 4 cooperate with each other to provide shear resistance. The unreacted hydrogen chloride and the hydrogen chloride gas generated by the reaction enter the pure water recovery tank 8 through the fixed block 6 and the connecting pipe 7, and are dissolved in the water inside the pure water recovery tank 8 to form a hydrogen chloride solution. After the hydrogen chloride solution is formed, the hydrogen chloride solution in the pure water recovery tank 8 can be introduced into the hydrogen chloride gas conversion tank 9 and converted back into hydrogen chloride gas. When the transmission device shakes under the action of the stirring device and external force in the reactor 2, the rubber pad 18 acts as a buffer. The fixed block 6 connects the reactor 2 and the connecting pipe 7 to prevent the connecting pipe 7 from falling off.

[0032] 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 to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A raw material transmission device for producing chloromethyl methyl ether, comprising a bottom plate (1); characterized in that: The top of the bottom plate (1) is fixedly connected to a machine box (11); the top of the machine box (11) is fixedly connected to a reactor (2); a methanol inlet (5) and a formaldehyde inlet (12) are fixedly connected to the side wall of the bottom end of the reactor (2); the methanol inlet (5) and the formaldehyde inlet (12) are arranged opposite to each other; a hydrogen chloride input pipe (10) is fixedly connected to the side of the machine box (11); a gas passage is opened inside the machine box (11) corresponding to the hydrogen chloride input pipe (10); and a hydrogen chloride gas conversion box (9) is fixedly connected to the end of the hydrogen chloride input pipe (10) away from the machine box (11).

2. A raw material transmission device for producing chloromethyl methyl ether according to claim 1, characterized in that: A turntable (17) is fixedly connected to the top of the chassis (11); a rotating shaft (13) is rotatably connected to the top of the turntable (17); a stirring rod (14) is fixedly connected to the side wall of the rotating shaft (13); the stirring rods (14) are arranged at equal angles; the stirring rods (14) are arranged in two layers, upper and lower; and a stirring blade (15) is fixedly connected between the two corresponding stirring rods (14) at the upper and lower levels.

3. A raw material transmission device for producing chloromethyl methyl ether according to claim 2, characterized in that: The turntable (17) is provided with a gas passage corresponding to the internal gas passage of the chassis (11); the rotating shaft (13) is provided with a gas passage corresponding to the internal gas passage of the turntable (17); a gas passage is provided inside the stirring rod (14); an air hole (16) is provided at the end of the stirring rod (14); and the air holes (16) are densely and equidistantly arranged.

4. A raw material transmission device for producing chloromethyl methyl ether according to claim 1, characterized in that: A support ring (3) is fixedly connected to the bottom of the reactor (2); a support rod (4) is fixedly connected to the bottom of the support ring (3); the bottom end of the support rod (4) is fixedly connected to the bottom plate (1); and a plurality of support rods (4) are arranged in a circular array.

5. A raw material transmission device for producing chloromethyl methyl ether according to claim 4, characterized in that: The top of the reactor (2) is fixedly connected to a fixed block (6); a connecting pipe (7) is fixedly connected to the side wall of the fixed block (6); one end of the connecting pipe (7) away from the fixed block (6) is fixedly connected to a pure water recovery tank (8); the top of the pure water recovery tank (8) is fixedly connected to the connecting pipe (7); the other end of the connecting pipe (7) at the top of the pure water recovery tank (8) is fixedly connected to the hydrogen chloride gas conversion tank (9).

6. A raw material transmission device for producing chloromethyl methyl ether according to claim 4, characterized in that: A rubber pad (18) is fixed to the bottom of the base plate (1).

7. A raw material transmission device for producing chloromethyl methyl ether according to claim 5, characterized in that: A sealing rubber ring (19) is fixed to the bottom of the fixed block (6).

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