Stable and reliable methylamine production equipment

Abstract

The utility model relates to the field of methylamine production, and discloses stable and reliable methylamine production equipment which comprises a tank body and a driving motor, the top end of the tank body is fixedly connected with the driving motor, an output shaft of the driving motor is fixedly connected with a rotating shaft, a plurality of groups of stirring rods are arranged on two sides of the rotating shaft, a cross groove is formed in the bottom end of the rotating shaft, and the stirring rods are arranged in the cross groove. And the bottom end of the tank body is fixedly connected with an air cylinder. According to the stable and reliable methylamine production equipment, the driving motor is arranged, when the driving motor drives a rotating shaft to rotate and multiple groups of stirring rods stir the interior, the mixing speed is increased, and an air cylinder can be started at set intervals and drives a telescopic rod to be pushed out upwards, so that a mounting frame is driven to move upwards, and a cross-shaped plug is embedded into a cross-shaped groove in the bottom end of the rotating shaft; due to the fact that the telescopic rod can rotate, the whole mounting frame and the scrapers on the two sides of the mounting frame can scrape the wall along with the mounting frame, timed wall scraping can be achieved without an external driving source, and the problem that carbonate crystals are attached to the wall due to insufficient reaction is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to methylamine production technical field, concretely is a kind of stable reliable methylamine production equipment. BACKGROUND

[0002] Methylamine is an important organic chemical raw material, widely used in the production of pesticides, pharmaceuticals, dyes, solvents and other chemicals. Methylamine is prepared by methyl alcohol preparation method, that is, using methanol and ammonia as raw materials, reacting in the presence of catalyst to generate methylamine, dimethylamine and trimethylamine and other products. The commonly used catalyst is activated alumina, and high-efficiency mixing and uniform distribution of catalyst are required for catalytic reaction to ensure that methanol and ammonia are fully reacted and high yield of methylamine is obtained, while avoiding the generation of by-products.

[0003] However, the existing methylamine production equipment is prone to incomplete reaction of part of the product under the high temperature and high pressure conditions of methanol and ammonia reaction, and the generated crystals accumulate on the inner wall of the tank. The crystals generated by incomplete reaction are easy to adhere to the inner wall of the equipment, form carbonate crystals on the inner wall of the reaction tank, corrode the inner wall of the tank, reduce the service life of the equipment and increase the maintenance cost.

[0004] Therefore, there is an urgent need in the current market for a stable and reliable methylamine production equipment to solve the above technical defects. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a kind of stable reliable methylamine production equipment to solve the problem that the crystals generated by incomplete reaction are easy to adhere as described in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of stable reliable methylamine production equipment, including tank body and drive motor, the tank body top is fixedly connected with drive motor, the output shaft of drive motor is fixedly connected with the shaft, the shaft both sides are arranged with multiple groups of stirring rod, the shaft bottom is provided with cross slot, the tank body bottom is fixedly connected with pneumatic cylinder, the piston rod of pneumatic cylinder is upwardly rotatably connected with telescopic link, the telescopic link top is penetrated through tank body bottom and is processed with cross plug, the cross plug is embeddable with the shaft, the telescopic link is fixedly connected with mounting bracket outside, the mounting bracket end is fixedly connected with fixed rod, the fixed rod outer wall is fixedly connected with spring seat, the mounting bracket is assembled with scraper through spring seat.

[0007] Preferably, the scraper is made of metal material plate, and the scraper abuts against the inner wall of the tank.

[0008] Preferably, the fixed rod is provided with two groups, and the two groups of fixed rods are symmetrically distributed about the axis of the telescopic link.

[0009] Preferably, the tank body bottom end is provided with a discharge port on both sides, and a drain pipe is installed on one side of the tank body bottom end, and the output end of the drain pipe is connected to a treatment box, and a waste pipe is installed on the left side of the treatment box.

[0010] Preferably, a water tank is arranged on the right side of the tank body, a water pump is installed on the outer wall of the water tank, a water supply pipe is connected to the output end of the water pump, the water supply pipe is connected to a sprayer upwardly, and the sprayer is installed on the inner wall of the tank body right above.

[0011] Preferably, a catalyst inlet is arranged on the left side of the top end of the tank body, and a sealing cover is installed on the catalyst inlet.

[0012] Preferably, a group of raw material tables are fixed on the left and right sides of the tank body, respectively, and a methanol storage tank and an ammonia storage tank are placed on the raw material tables, respectively, a gas pump is installed on one side of each of the methanol storage tank and the ammonia storage tank, and the methanol storage tank and the ammonia storage tank are connected to a raw material pipe through the gas pump, respectively, and the output end of the raw material pipe extends into the tank body.

[0013] Preferably, a methanol gas detector and an ammonia gas detector are installed on the raw material pipe, respectively, and the methanol gas detector and the ammonia gas detector are connected to a production line alarm system.

[0014] Compared with the prior art, the beneficial effects of the stable and reliable methylamine production equipment are that the stable and reliable methylamine production equipment not only realizes timed wall scraping, reduces the problem of carbonate crystallization wall adhesion due to insufficient reaction, realizes adsorption of waste ammonia elements, reduces emission pollution, and facilitates detection of whether the pipeline leaks or not, and improves production safety.

[0015] By arranging the driving motor, the rotating shaft, the stirring rods, the air cylinder, the telescopic rod, the mounting frame, the cross plug and the scraper, the rotating shaft for mixing raw materials and catalysts is arranged in the tank body, the driving motor drives the rotating shaft to rotate, the multiple stirring rods stir the inside, thereby improving the mixing speed, the air cylinder is started every certain period of time, the air cylinder drives the telescopic rod to push upwardly, thereby driving the mounting frame to move upwardly, the cross plug is embedded into the cross groove at the bottom end of the rotating shaft, the telescopic rod can rotate, therefore the mounting frame and the scrapers on both sides thereof can follow the wall scraping, no external driving source is needed, the timed wall scraping is realized, the problem of carbonate crystallization wall adhesion due to insufficient reaction is reduced, and the wall scraping is realized.

[0016] By arranging the water tank, the water pump, the sprayer, the drain pipe, the waste pipe and the treatment box, the tank body is flushed by the water tank when the tank body is stopped, the water pump pumps out the cleaning water in the water tank and delivers the cleaning water to the sprayer through the water supply pipe to flush the inner wall of the tank body, and the waste water is discharged from the drain pipe, since the waste water is mixed with mixed waste gas, therefore the treatment box filled with sulfate is arranged in front of the waste pipe to adsorb waste ammonia elements and reduce emission pollution.

[0017] The methanol and ammonia gas, which are raw materials of methylamine, are stored in the methanol storage tank and the ammonia gas storage tank respectively, are extracted by the air pump, and are introduced into the tank body through the raw material pipe, so that the mixture pollution is avoided, the feeding amount is accurately controlled, the methanol gas detector and the ammonia gas detector are installed at the air pump, the pipeline leakage is detected, the safety alarm system is triggered in time once the leakage occurs, and the safety of the whole production is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view sectional structure schematic view of the utility model;

[0019] Figure 2 It is a pivot bottom view structure schematic view of the utility model;

[0020] Figure 3 It is a pivot bottom view structure schematic view of the utility model; Figure 1 It is a pivot bottom view structure schematic view of the utility model;

[0021] Figure 4 It is a scraper side view structure schematic view of the utility model.

[0022] In the figure: 1, tank body; 2, sprayer; 3, water supply pipe; 4, raw material pipe; 5, air pump; 6, methanol storage tank; 7, methanol gas detector; 8, raw material table; 9, water tank; 10, water pump; 11, discharge port; 12, cross plug; 13, telescopic rod; 14, air cylinder; 15, drain pipe; 16, treatment box; 17, waste discharge pipe; 18, mounting frame; 19, fixed rod; 20, ammonia gas storage tank; 21, ammonia gas detector; 22, catalyst inlet; 23, stirring rod; 24, pivot; 25, driving motor; 26, scraper; 27, spring seat. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-4The utility model provides a kind of stable reliable methylamine production equipment, including jar body 1 and drive motor 25, jar body 1 top end is fixedly connected with drive motor 25, the output shaft of drive motor 25 is fixedly connected with rotating shaft 24, rotating shaft 24 both sides are arranged with multiple groups of stirring rod 23, rotating shaft 24 bottom end is equipped with cross slot, jar body 1 bottom end is fixedly connected with cylinder 14, the piston rod of cylinder 14 is rotatably connected with telescopic link 13, telescopic link 13 top end penetrates jar body 1 bottom end and is processed with cross plug 12, cross plug 12 and rotating shaft 24 can be embedded matching, telescopic link 13 outside is fixedly connected with mounting bracket 18, mounting bracket 18 end is fixedly connected with fixed rod 19, fixed rod 19 outer wall is fixedly connected with spring seat 27, mounting bracket 18 is equipped with scraper 26 by spring seat 27, scraper 26 uses metal material plate, scraper 26 and jar body 1 inner wall abut, fixed rod 19 is provided with two groups, two groups of fixed rod 19 are about the axial symmetry distribution of telescopic link 13;

[0025] Specifically, as Figure 1 、 Figure 2 、 Figure 3 And Figure 4 Indicated, in jar body 1 is provided with mixed raw materials and the rotating shaft 24 of catalytic medium, when drive motor 25 drives rotating shaft 24 to rotate, multiple groups of stirring rod 23 agitates inside, to improve mixing speed, every interval time, can start cylinder 14, cylinder 14 drives telescopic link 13 to push out upwards, to drive mounting bracket 18 to move up, so that cross plug 12 is embedded in the cross slot of rotating shaft 24 bottom end, since telescopic link 13 can rotate, therefore whole mounting bracket 18 and its both sides scraper 26 can follow scraping wall, since the existence of spring seat 27, scraper 26 will not be tightly resisted jar wall when scraping wall, avoid scraping wall damage, need not external drive source, can realize timing scraping wall, remove the carbonate crystallization produced due to reaction insufficiency.

[0026] Jar body 1 bottom end both sides are provided with discharge gate 11, and the bottom end of jar body 1 is provided with drain pipe 15, and the output end of drain pipe 15 is connected to treatment tank 16, and the left side of treatment tank 16 is provided with waste pipe 17, and the right side of jar body 1 is provided with water tank 9, and the outer wall of water tank 9 is provided with water pump 10, and the output end of water pump 10 is connected with water supply pipe 3, and water supply pipe 3 is connected to sprayer 2 upwards, and sprayer 2 is installed on the inner wall right upper side of jar body 1, and the top end left side of jar body 1 is provided with catalyst inlet 22, and catalyst inlet 22 is provided with sealing cover;

[0027] Specifically, as Figure 1 Indicated, whole jar body 1 is washed by water tank 9 when stopping, and water pump 10 extracts cleaning water in water tank 9, and is delivered to sprayer 2 through water supply pipe 3 to flush jar body 1 inner wall, and waste water is discharged from drain pipe 15, since waste water is mixed with mixed waste gas, therefore before waste pipe 17 is provided with the treatment tank 16 of sulphate, and adsorbs waste ammonia element.

[0028] A set of raw material tables 8 are fixed on the left and right sides of the tank body 1, respectively, and a methanol storage tank 6 and an ammonia storage tank 20 are placed at the raw material tables 8, respectively. The methanol storage tank 6 and the ammonia storage tank 20 are respectively provided with a gas pump 5 on one side, and the methanol storage tank 6 and the ammonia storage tank 20 are respectively connected to a raw material pipe 4 through the gas pump 5. The output end of the raw material pipe 4 extends into the tank body 1, and a methanol gas detector 7 and an ammonia gas detector 21 are respectively installed at the raw material pipe 4. The methanol gas detector 7 and the ammonia gas detector 21 are connected to a production line alarm system.

[0029] Specifically, as shown in Figure 1 The production raw materials of methylamine, methanol and ammonia, are respectively stored in the methanol storage tank 6 and the ammonia storage tank 20, are extracted by the gas pump 5, and are introduced into the tank body 1 through the raw material pipe 4, avoiding mixing pollution and precisely controlling the amount of feed. The methanol gas detector 7 and the ammonia gas detector 21 are installed at the gas pump 5, facilitating detection of whether the pipeline is leaking.

[0030] Working principle: The production raw materials of methylamine, methanol and ammonia, are respectively stored in the methanol storage tank 6 and the ammonia storage tank 20, are extracted by the gas pump 5, and are introduced into the tank body 1 through the raw material pipe 4, avoiding mixing pollution and precisely controlling the amount of feed. The methanol gas detector 7 and the ammonia gas detector 21 are installed at the gas pump 5, facilitating detection of whether the pipeline is leaking. A mixing raw material and a catalytic medium rotating shaft 24 are arranged in the tank body 1. When the driving motor 25 drives the rotating shaft 24 to rotate, a plurality of stirring rods 23 stir the inside, thereby improving the mixing speed. Every certain period of time, the air cylinder 14 can be started, the air cylinder 14 drives the telescopic rod 13 to push out upward, thereby driving the mounting bracket 18 to move upward, so that the cross plug 12 is embedded in the cross groove at the bottom end of the rotating shaft 24. Since the telescopic rod 13 can rotate, the entire mounting bracket 18 and the scraping plates 26 on both sides thereof can follow the wall scraping to remove carbonate crystals generated due to insufficient reaction. The entire tank body 1 is flushed by the water tank 9 when it is stopped, the water pump 10 extracts the cleaning water in the water tank 9, and delivers the cleaning water to the sprayer 2 through the water delivery pipe 3 to flush the inner wall of the tank body 1. The waste water is discharged from the drain pipe 15. Since the waste water is mixed with mixed waste gas, a sulfate treatment tank 16 is arranged in front of the waste discharge pipe 17 to adsorb waste ammonia elements.

[0031] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A stable and reliable methylamine production device, comprising a tank body (1) and a driving motor (25), characterized in that: The top end of the tank body (1) is fixedly connected with a driving motor (25), the output shaft of the driving motor (25) is fixedly connected with a rotating shaft (24), a plurality of groups of stirring rods (23) are arranged on the two sides of the rotating shaft (24), a cross groove is formed in the bottom end of the rotating shaft (24), the bottom end of the tank body (1) is fixedly connected with a pneumatic cylinder (14), the piston rod of the pneumatic cylinder (14) is upwardly rotatably connected with an extension rod (13), the top end of the extension rod (13) penetrates through the bottom end of the tank body (1) and is provided with a cross plug (12), the cross plug (12) is matchable with the rotating shaft (24), the extension rod (13) is fixedly connected with a mounting frame (18) outside, the mounting frame (18) is fixedly connected with a fixed rod (19) at the end, the fixed rod (19) is fixedly connected with a spring seat (27) on the outer wall, and the mounting frame (18) is assembled with a scraper (26) through the spring seat (27).

2. A stable and reliable methylamine production plant according to claim 1, characterized in that: The scraper (26) is made of metal material plate, and the scraper (26) abuts against the inner wall of the tank body (1).

3. A stable and reliable methylamine production plant as claimed in claim 1, wherein: The fixed rod (19) is provided with two groups, and the two groups of fixed rods (19) are symmetrically distributed about the axis of the extension rod (13).

4. A stable and reliable methylamine production plant as claimed in claim 1, wherein: The bottom end of the tank body (1) is provided with a discharge port (11) on each side, a drain pipe (15) is installed on one side of the bottom end of the tank body (1), the output end of the drain pipe (15) is connected to a treatment box (16), and a waste discharge pipe (17) is installed on the left side of the treatment box (16).

5. A stable and reliable methylamine production plant as claimed in claim 1, wherein: A water tank (9) is arranged on the right side of the tank body (1), a water pump (10) is installed on the outer wall of the water tank (9), the output end of the water pump (10) is connected with a water supply pipe (3), the water supply pipe (3) is connected upward to a sprayer (2), and the sprayer (2) is installed on the inner wall right upper side of the tank body (1).

6. A stable and reliable methylamine production plant as claimed in claim 1, wherein: A catalyst inlet (22) is arranged on the left side of the top end of the tank body (1), and a sealing cover is installed on the catalyst inlet (22).

7. A stable and reliable methylamine production plant as claimed in claim 1, wherein: A group of raw material tables (8) are fixed on the left and right sides of the tank body (1), respectively, a methanol storage tank (6) and an ammonia storage tank (20) are placed at the raw material tables (8), respectively, a gas pump (5) is installed on one side of the methanol storage tank (6) and the ammonia storage tank (20), respectively, the methanol storage tank (6) and the ammonia storage tank (20) are connected to a raw material pipe (4) through the gas pump (5), respectively, and the output end of the raw material pipe (4) extends into the tank body (1).

8. A stable and reliable methylamine production plant according to claim 7, characterized in that: A methanol gas detector (7) and an ammonia gas detector (21) are installed at the raw material pipe (4), respectively, and the methanol gas detector (7) and the ammonia gas detector (21) are connected to a production line alarm system.

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