CN113559814B

CN113559814B - Cationic polymer monomer preparation facilities

Info

Publication number: CN113559814B
Application number: CN202111132137.9A
Authority: CN
Inventors: 李金江; 王兵杰; 荣洪杰
Original assignee: Shandong Lanwan New Material Co ltd
Current assignee: Shandong Lanwan New Material Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-02-22
Anticipated expiration: 2041-09-27
Also published as: CN113559814A

Abstract

The invention relates to a device for preparing a cationic polymer monomer, which belongs to the technical field of chemical equipment and comprises a tank body, a rotating shaft, fan blades, a spiral plate, a circulating pipeline and a spiral pipeline, wherein the tank body is a cylindrical tank, the rotating shaft is rotatably connected in the tank body, one end of the rotating shaft extends out of the tank body and is connected with a motor, the other end of the rotating shaft extends into the tank body, a plurality of groups of fan blades are fixedly connected on the rotating shaft at intervals, the spiral plate is fixedly connected in the tank body, the inlet end and the outlet end of the circulating pipeline are both connected on the tank body, the outlet end of the circulating pipeline is positioned above the spiral plate, the spiral pipeline is fixedly connected in the tank body, and hot water flows in the spiral pipeline.

Description

Cationic polymer monomer preparation facilities

Technical Field

The invention relates to the technical field of chemical equipment, in particular to a device for preparing a cationic polymer monomer.

Background

The cationic polymer is a water-soluble polymer with the largest dosage and the widest application range at present, and has high application value in the fields of petrochemical industry, papermaking, textile printing and dyeing, daily chemicals, particularly as a flocculating agent in water treatment, sludge dewatering and the like. Cationic monomers are the base stock for cationic polymers. Cationic monomers are various and mainly comprise quaternary ammonium salt, quaternary phosphonium salt, quaternary sulfonium salt cationic monomers and the like, wherein mechanical force survivability of flocculating groups formed by DAC (acryloyloxyethyl trimethyl ammonium chloride, [ CAS accession number ] 46830-22-2) cationic polymers is far better than that of DMC (methacryloyloxyethyl trimethyl ammonium chloride, [ CAS accession number ] 5039-78-1) flocculating agents, and the flocculating agents are polymer flocculating agents which are most widely applied and used at present. Because the complete sets that realizes DAC cation monomer industrial production is less in China, there are inhibitor lectotype and quantity improper, automated control level is low to current device contrast, the continuous production ability is poor, low in production efficiency, product quality unstability scheduling problem, high-quality DAC class cation polymer still has certain breach in the domestic market, consequently, the urgent need of market is to provide a cation polymer monomer preparation facilities, in order to reduce equipment cost and improve production efficiency, satisfy domestic high-quality DAC class flocculating agent product demand.

Therefore, in view of the above disadvantages, it is desirable to provide a cationic polymer monomer production apparatus.

Disclosure of Invention

Technical problem to be solved

The invention aims to solve the technical problems of more arrangement quantity, less functionality and lower efficiency of the existing preparation device.

(II) technical scheme

In order to solve the technical problem, the invention provides a device for preparing a cationic polymer monomer, which comprises a tank body, a rotating shaft, fan blades, a spiral plate, a circulating pipeline and a spiral pipeline, wherein the tank body is a cylindrical tank, the rotating shaft is rotatably connected in the tank body, one end of the rotating shaft extends out of the tank body and is connected with a motor, the other end of the rotating shaft extends into the tank body, a plurality of groups of fan blades are fixedly connected to the rotating shaft at intervals, the spiral plate is fixedly connected in the tank body, the inlet end and the outlet end of the circulating pipeline are both connected to the tank body, the outlet end of the circulating pipeline is positioned above the spiral plate, the spiral pipeline is fixedly connected in the tank body, and hot water flows in the spiral pipeline.

As a further explanation of the present invention, preferably, the top of the tank body is fixedly connected with an alkane feed port, an ester feed port, a compressed air inlet and a water pipe port at intervals, and the bottom of the tank body is fixedly connected with a product discharge port, wherein methane chloride flows through the alkane feed port, and dimethyl amine ethyl acrylate flows through the ester feed port.

As a further explanation of the present invention, preferably, two sets of blades are disposed on the rotating shaft, the number of blades of each set of blades is greater than or equal to two, the two sets of blades are distributed at intervals along the length direction of the rotating shaft, and the two sets of blades are respectively disposed at the upper and lower ends of the spiral plate.

As a further explanation of the present invention, preferably, the outer diameter of the fan blade is smaller than the inner diameter of the tank body, and the outer diameter of the fan blade is larger than the inner diameter of the spiral plate.

As a further explanation of the present invention, it is preferable that the pitch of the spiral plate is 10 to 100mm, and the number of turns of the spiral plate is 1 or two.

As a further explanation of the present invention, it is preferable that the spiral pipe is a spiral pipe, normal temperature water intermittently flows into the spiral pipe from the upper end, and the rotation direction of the blades is opposite to the flow direction of the liquid.

As a further illustration of the present invention, it is preferable that pressurized air is injected into the tank through the compressed air inlet so that the pressure in the tank is maintained at 0.95 to 0.75MPa, the temperature is maintained at 35 to 50 ℃, and the reaction time is maintained at 0.8 to 1.5 hours.

As a further explanation of the present invention, it is preferable that a circulation cooling pump and a circulation cooler are connected to the circulation line, and the pressure inside the tank starts to change after the liquid enters the circulation line.

(III) advantageous effects

The technical scheme of the invention has the following advantages:

according to the invention, by designing a novel reaction device and performing cyclic reciprocating adjustment on the pump, multistage reaction is realized, the number of used equipment is reduced, the reaction can be ensured to be completely performed, compared with the conventional method of realizing continuous deep reaction by using a plurality of groups of reaction tanks, the scheme is more energy-saving, the reaction depth is higher, and meanwhile, the automation and the production safety are also high.

Drawings

FIG. 1 is an internal structural view of the present invention;

FIG. 2 is a right side view of the present invention;

FIG. 3 is a left side view of the present invention;

fig. 4 is a bottom view of the present invention.

In the figure: 1. a tank body; 11. an alkane feed inlet; 12. a product discharge port; 13. an ester feed inlet; 14. a compressed air inlet; 15. a water pipe opening; 2. a rotating shaft; 3. a fan blade; 4. a helical plate; 5. a recycle line; 6. a helical conduit; 61. a base; 62. and (4) a bracket.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

The utility model provides a cationic polymer monomer preparation facilities, combine figure 1, figure 2, which comprises a tank body 1, the pivot 2, the flabellum 3, heliciform panel 4, circulation pipeline 5 and heliciform pipeline 6, jar body 1 is the cylinder jar, pivot 2 rotates to be connected in

jar body

1, 2 one ends of pivot stretch out jar body 1 outsides and be connected with the motor, 2 other ends of pivot stretch into jar body 1, multiunit flabellum 3 intervals link firmly on pivot 2, heliciform panel 4 links firmly in

jar body

1, 5 entrance points of circulation pipeline and exit end are all connected on

jar body

1, 5 exit ends of circulation pipeline are located heliciform panel 4 tops, heliciform pipeline 6 links firmly in jar body 1, hot water has flowed in the heliciform pipeline 6.

Referring to fig. 3 and 4, the top of the tank body 1 is fixedly connected with an alkane feed port 11, an ester feed port 13, a compressed air inlet 14 and a water pipe port 15 at intervals, the bottom of the tank body 1 is fixedly connected with a product discharge port 12, wherein methane chloride flows through the alkane feed port 11, dimethyl aminoethyl acrylate flows through the ester feed port 13, pressurized air containing nitrogen or inert gas flows through the compressed air inlet 14, and deionized water flows through the water pipe port 15. The rotating shaft 2 is a cylindrical rod, the fan blades 3 are square flaky plates, two sets of fan blades 3 are arranged on the rotating shaft 2, the number of the fan blades of each set of fan blades 3 is more than or equal to two, the two sets of fan blades 3 are distributed at intervals along the length direction of the rotating shaft 2, and the two sets of fan blades 3 are respectively positioned at the upper end and the lower end of the spiral plate 4. After the reactants are injected into the tank body 1, the rotating shaft 2 is driven by the motor to rotate, so that the fan blades 3 rotate to stir the liquid reactants. Wherein, the outer diameter of the fan blade 3 is smaller than the inner diameter of the tank body 1, and the outer diameter of the fan blade 3 is larger than the caliber of the inner ring of the spiral plate 4, so that the fan blade 3 can rotate to stir liquid and cannot interfere with the spiral plate 4 and the tank body 1.

Referring to fig. 1 and 2, the spiral plate 4 is a steel spiral sheet, the outer wall surface of the spiral plate 4 is welded on the inner wall of the tank body 1, the pitch of the spiral plate 4 is 10-100 mm, and the number of spiral turns of the spiral plate 4 is 1 or two. The circulating pipeline 5 is a conventional pipeline, a feeding hole and a discharging hole of the circulating pipeline 5 are both positioned on the tank body 1, the circulating pipeline 5 is connected with a circulating cooling pump and a circulating cooler, the circulating cooling pump is used for pumping the liquid reactant and part of gas in the tank body 1 out of the tank body 1, the circulating cooler is used for cooling and condensing the pumped liquid reactant and gas, and then the liquid reactant and the gas are guided into the tank body 1 through the action of the circulating cooling pump in a backflow mode so as to carry out deep reaction.

Combine figure 1, figure 2, spiral pipeline 6 is the spiral pipeline, and spiral pipeline 6 intermittently flows into normal atmospheric temperature water from the upper end, and 6 parts of spiral pipeline are located 4 tops of spiral helicine panel, and 6 remaining parts of spiral pipeline are located 4 below of spiral helicine panel, and 6 bottoms of spiral pipeline have linked firmly annular base 61, and base 61 links firmly in jar 1 bottom, and the welding has a plurality of columnar supports 62 on the base 61, and support 62 adopts the spring steel to make, has good elasticity. Support 62 links firmly between 6 spiral portions of heliciform pipeline, and support 62 top links firmly at 4 bottom faces of heliciform panel for fixed heliciform pipeline 6's position, with 4 integrated into one piece of heliciform pipeline 6 and heliciform panel simultaneously when the assembly, the assembly of both being convenient for can utilize the different support 62 of length to be convenient for stabilize the structure of heliciform panel 4 again, hold multiple purposes at one stroke.

With reference to fig. 1 and 4, during preparation, methane chloride, dimethylaminoethyl acrylate and deionized water are injected into the tank body 1 through the alkane feed inlet 11, the ester feed inlet 13 and the water pipe port 15, respectively, and metering pumps are arranged outside the alkane feed inlet 11, the ester feed inlet 13 and the water pipe port 15 for controlling flow. After the liquid reactant enters the tank body 1, the compressed air inlet 14 is opened to inject compressed air, so that the pressure in the tank body 1 is maintained between 0.95 and 0.75MPa, then the rotating shaft 2 is started to rotate the fan blades 3, the liquid reactant is stirred to enable the materials to start to react, because the reaction is an exothermic reaction, the circulating cooling pump on the circulating pipeline 5 is opened to pump the liquid from the bottom of the tank body 1 into the circulating cooler for cooling, and then the cooled liquid is pumped into the tank body 1 from the upper part of the spiral plate 4, so that the reactant can continuously and thoroughly react.

Referring to fig. 1 and 4, when reactants enter the tank body 1 from the circulation pipeline 5, the reactants flow to the spiral plate 4 and flow downwards on the spiral plate 4, at the moment, the rotation direction of the fan blades 3 is the opposite direction of the liquid flow, and the contact between the reactants is more sufficient by combining the gentle slope of the spiral plate 4, and the reactants are cooled by a cooler, so that the reaction between the materials is more thorough, the reaction efficiency is greatly improved, and in addition, the reactants flow to the lower part of the spiral plate 4 and further react under the stirring of the fan blades 3 below the spiral plate 4. When the liquid enters the circulating pipeline 5, the gas pressure in the compressed air inlet 14 is controlled, the gas pressure can be reduced by about 0.3MPa according to the reaction condition, so that the pressure in the tank body 1 begins to change, the reaction is further deepened, meanwhile, excessive air is injected to prevent the product from polymerizing, and the product yield is further improved.

With the combination of fig. 1 and fig. 4, the air pressure in the tank body 1 changes, and the fan blades 3 rotate, so that the spiral pipeline 6 vibrates, at the moment, normal-temperature water is introduced into the spiral pipeline 6 according to the vibration amplitude clearance, a certain cooling effect can be achieved, the temperature of liquid in the tank body 1 is maintained at 35 ℃ to 50 ℃ in cooperation with the cooling of a cooler, the liquid below the spiral plate 4 can fully react, the vibration amplitude of the spiral pipeline 6 can be alleviated, the spiral pipeline 6 is prevented from being damaged due to structural occurrence, and in addition, a certain stirring effect can be achieved due to small vibration of the spiral pipeline 6, so that the deepened reaction is further promoted.

In conclusion, the preparation device provided by the invention can be used for more completely reacting, the amount of the finally generated product is increased by 5% by using the same amount of raw material reactants, the reaction time can be maintained between 0.8h and 1.5h, and compared with the original 5h to 6h, the processing time is greatly shortened, only one tank body 1 is adopted, a plurality of reaction tanks are not required to be arranged for distributed reaction, the purchase and installation cost of equipment is reduced, the production efficiency is improved, and the economic cost is reduced.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a cationic polymer monomer preparation facilities, includes a jar body (1), pivot (2) and flabellum (3), and jar body (1) is the cylinder jar, and pivot (2) rotate to be connected in jar body (1), and pivot (2) one end is stretched out jar body (1) and is connected with the motor outward, and in the jar body (1) was stretched into to the pivot (2) other end, multiunit flabellum (3) interval linked firmly on pivot (2), its characterized in that: the water tank is characterized by further comprising a spiral plate (4), a circulating pipeline (5) and a spiral pipeline (6), wherein the spiral plate (4) is fixedly connected in the tank body (1), the inlet end and the outlet end of the circulating pipeline (5) are connected to the tank body (1), the outlet end of the circulating pipeline (5) is positioned above the spiral plate (4), the spiral pipeline (6) is fixedly connected in the tank body (1), hot water or normal-temperature water flows in the spiral pipeline (6), the spiral pipeline (6) is a spiral pipeline, and the rotating direction of the fan blades (3) is the opposite direction of liquid flow; the spiral pipeline (6) is partially positioned above the spiral plate (4), the rest part of the spiral pipeline (6) is positioned below the spiral plate (4), the bottom of the spiral pipeline (6) is fixedly connected with an annular base (61), the base (61) is fixedly connected with the bottom of the tank body (1), a plurality of columnar supports (62) are welded on the base (61), and the supports (62) are made of spring steel; the support (62) is fixedly connected between the spiral parts of the spiral pipeline (6), and the top of the support (62) is fixedly connected with the bottom end face of the spiral plate (4); the top of the tank body (1) is fixedly connected with an alkane feed port (11), an ester feed port (13), a compressed air inlet (14) and a water pipe port (15) at intervals, the bottom of the tank body (1) is fixedly connected with a product discharge port (12), wherein monochloromethane flows in the alkane feed port (11), and dimethylamine ethyl acrylate flows in the ester feed port (13); pressurized air is injected into the tank body (1) through a compressed air inlet (14) so as to maintain the pressure in the tank body (1) at 0.95 to 0.75MPa, the temperature at 35 to 50 ℃ and the reaction time at 0.8 to 1.5 hours.

2. The apparatus for preparing a cationic polymer monomer according to claim 1, wherein: two sets of fan blades (3) are arranged on the rotating shaft (2), the number of the blades of each set of fan blades (3) is more than or equal to two, the two sets of fan blades (3) are distributed at intervals along the length direction of the rotating shaft (2), and the two sets of fan blades (3) are respectively positioned at the upper end and the lower end of the spiral plate (4).

3. The apparatus for preparing a cationic polymer monomer according to claim 2, wherein: the outer diameter of the fan blade (3) is smaller than the inner diameter of the tank body (1), and the outer diameter of the fan blade (3) is larger than the caliber of the inner ring of the spiral plate (4).

4. The apparatus for preparing a cationic polymer monomer according to claim 3, wherein: the pitch of the spiral plate (4) is 10-100 mm, and the number of spiral turns of the spiral plate (4) is 1 or two.

5. The apparatus for preparing a cationic polymer monomer according to claim 4, wherein: the circulating pipeline (5) is connected with a circulating cooling pump and a circulating cooler, and the pressure in the tank body (1) begins to change after liquid enters the circulating pipeline (5).