CN220559219U - Lime nitrogen hydrolysis cooling reaction kettle - Google Patents

Abstract

The utility model relates to a lime nitrogen hydrolysis cooling reaction kettle, wherein a sealing partition plate is fixedly arranged at the upper part of the inner side of a reaction tank body, a transmission cylinder is movably arranged at the axle center of the sealing partition plate in a penetrating manner, a transmission pipe is movably sleeved at the middle part of the transmission cylinder, an air inlet pipe is movably sleeved at the middle part of the transmission pipe, supporting frames are symmetrically arranged at two sides of the periphery of the transmission cylinder, one end of each supporting frame is vertically provided with a transmission frame, the transmission frame is fixedly connected with a plurality of first paddles, the transmission pipe is fixedly connected with a plurality of second paddles uniformly distributed at equal intervals, a plurality of air outlet holes are formed in the periphery of the lower part of the air inlet pipe in a penetrating manner, a plurality of air outlet holes are formed in the periphery of the transmission pipe in a penetrating manner at positions between the adjacent second paddles, and reactants at the bottom of the reaction tank body are fully stirred through stirring vertical rods and stirring, so that the stirring uniformity of the reactants is enhanced, and the reactant is further prevented from accumulating in the discharge pipe through stirring needles, and blocking is avoided.

Description

Lime nitrogen hydrolysis cooling reaction kettle

Technical Field

The utility model relates to the technical field of lime nitrogen hydrolysis, in particular to a lime nitrogen hydrolysis cooling reaction kettle.

Background

Lime nitrogen, which is a mixture of calcium cyanamide, calcium oxide and other insoluble impurities, can be used for producing dicyandiamide, and during production, the mixture of calcium cyanamide, calcium oxide and other insoluble impurities constituting the lime nitrogen needs to be stirred.

The utility model discloses a lime nitrogen hydrolysis reaction kettle with multiple stirring, including the agitator tank, agitator tank internal fixation installs built-in locating plate, rotate on the built-in locating plate and install two first (mixing) shafts, rotate on the built-in locating plate and install the second (mixing) shaft, the top fixed mounting of agitator tank has the motor, fixed mounting has the filling tube on an outer wall of agitator tank, fixed mounting has the filling tube on the wallboard of one side of the agitator tank is kept away from the filling tube, the beneficial effect of above-mentioned patent is, drive the second (mixing) shaft through the motor and rotate, because two first (mixing) shafts all are connected with the second (mixing) shaft meshing, so can let two first (mixing) shafts follow the synchronous rotation of second (mixing) shaft, when the second (mixing) shaft clockwise rotation, two first (mixing) shafts are anticlockwise rotation, can carry out multiple stirring to the mixture of lime nitrogen and water this moment, and let the mixed liquor form reverse vortex, can accelerate the speed that lime nitrogen dissolves in water, a large amount of time has been saved, stirring efficiency has been improved greatly.

The device has the following defects that the device is inconvenient to charge when in use, the stirring range can not cover all parts in the tank, reactant is easy to deposit at the bottom and the discharge port in the tank, the device is lack of a cleaning device, more cleaning work is needed in the tank after the reaction is finished, and the time interval between the front reaction and the back reaction is long.

Disclosure of Invention

The utility model aims to solve the problems and the defects, and provides a lime nitrogen hydrolysis cooling reaction kettle, which improves the overall working efficiency.

The technical problems solved by the utility model are as follows:

(1) The device is inconvenient to charge when in use, the stirring range can not cover all positions in the tank, and reactants are easy to deposit at the bottom and the discharge port in the tank;

(2) The device lacks a cleaning device, the cleaning work in the tank is more after the reaction process is finished, and the time interval between the front reaction and the back reaction is longer.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a lime nitrogen hydrolysises cooling reation kettle, the reactor comprises a reaction tank body, the fixed a plurality of reinforced section of thick bamboo that wears to be equipped with in top of the retort body, a plurality of reinforced section of thick bamboo is equiangular evenly distributed, the inboard upper portion fixed mounting of the retort body has sealed baffle, sealed baffle and with sealed baffle sealing connection are run through to the lower extreme of reinforced section of thick bamboo, the axle center department activity of sealed baffle wears to be equipped with the transmission section of thick bamboo, sealed baffle and sealed rotation connection of transmission section of thick bamboo, the middle part movable sleeve of transmission section of thick bamboo is equipped with the intake pipe, the support frame is installed to the periphery both sides symmetry of transmission section of thick bamboo, the vertical drive frame that installs of one end of support frame, one side fixedly connected with that the drive frame is close to the transmission section of thick bamboo is a plurality of first paddle that is equidistant evenly distributed, the lower fixedly connected with a plurality of that is equidistant evenly distributed in middle part periphery both sides of transmission section of thick bamboo just is located, first paddle and second paddle are crisscross distribution, the lower part periphery of intake pipe is run through and is offered a plurality of gas outlet hole that is annular array evenly distributed, the periphery of transmission section of thick bamboo just be located between the second paddle that is adjacent is all running through and is offered a plurality of exhaust hole.

Preferably, a stirring motor is arranged on one side of the top of the reaction tank body, a driving shaft of the stirring motor vertically downwards penetrates through the top of the reaction tank body in a movable mode, a driving rod is fixedly connected to the lower end of the driving shaft of the stirring motor, a driving gear is fixedly connected to the lower end of the driving rod, and a driven gear is arranged on one side of the driving gear.

Preferably, the lower part fixedly connected with first fluted disc of driven gear, the below of first fluted disc is equipped with the third fluted disc, and be equipped with a plurality of second fluted disc between first fluted disc and the third fluted disc, a plurality of second fluted disc is equiangular degree evenly distributed, mesh the transmission respectively between first fluted disc and the second fluted disc and between third fluted disc and the second fluted disc, the third fluted disc is rotated with sealed baffle through first thrust bearing and is connected, the transfer line runs through and sealed fixed connection driven gear and first fluted disc, the transfer cylinder runs through and sealed fixed connection third fluted disc, the transfer cylinder is sealed to rotate with the transfer line to be connected.

Preferably, the periphery of the reaction tank body is covered with a temperature control layer and an insulating layer from inside to outside in sequence, a plurality of temperature control pipes which are uniformly distributed at equal intervals are buried in the temperature control layer, a discharge pipe is connected at the bottom of the reaction tank body in a penetrating manner, and an electromagnetic valve for stopping discharging is arranged at the lower end of the discharge pipe.

Preferably, the lower extreme fixedly connected with of drive frame mixes the pole at bottom, and the drive frame mixes pole and support frame coplaner with the bottom, and the lower part periphery activity of transfer line has cup jointed spacing sleeve, mixes pole and spacing sleeve fixed connection at bottom, and the upper portion fixedly connected with of mixing the pole at bottom is a plurality of equidistance evenly distributed's stirring montant, and the lower extreme of transfer line stretches into in the discharge tube, and the lower extreme periphery fixedly connected with of transfer line is a plurality of array evenly distributed's stirring needle.

Preferably, the periphery of the transmission frame and the bottom stirring rod are both provided with scraping wall embedded strips, the lower end of the transmission barrel is fixedly connected with a supporting ring, the supporting ring is movably sleeved on the periphery of the transmission pipe, a supporting sleeve is fixedly sleeved on the periphery of the transmission pipe, the supporting sleeve is rotationally connected with the supporting ring through a second thrust bearing, and the upper end of the transmission pipe is rotationally connected with the air inlet pipe in a sealing way through a sealing bearing.

The beneficial effects of the utility model are as follows:

(1) During operation, remove each first paddle and second paddle earlier for each first paddle and second paddle are coplanar, avoid simultaneously that any one reinforced section of thick bamboo is located directly over first paddle or the second paddle, avoid first paddle or second paddle to interfere the material of throwing, throw the material into the retort body through reinforced section of thick bamboo afterwards, according to the difference of technology content through different reinforced section of thick bamboo with each powder and aqueous humor adding the retort body, add the back of accomplishing and close reinforced section of thick bamboo, agitator motor rotates transfer line and driving gear in proper order, drive driven gear and first fluted disc in proper order, the transmission through the second fluted disc, first fluted disc and the synchronous reverse rotation of third fluted disc, first fluted disc drives the transmission section of thick bamboo anticlockwise rotation, make sealed baffle carry out steady support through first thrust bearing, avoid rotating the resistance, reduce the rotation resistance, carry out the reverse rotation at the uniform velocity through transmission section of thick bamboo and transmission pipe, make the transmission section of thick bamboo drive support frame in proper order, the transmission frame and first paddle rotate, and make the transmission pipe drive second paddle rotate with the opposite direction with first paddle, thereby make the powder and aqueous humor evenly mix together, make the air intake pipe, the reaction kettle is fully convenient, and the reaction kettle is further cooled down, the reaction kettle is convenient and air intake vent.

(2) Through with the heat-conducting medium input temperature control pipe of different temperatures to control the internal temperature of retort, through the heat preservation heat-proof, avoid inside heat to influence each other with external environment, open and close through electromagnetic valve control discharge tube, the convenience is in time unloaded, under agitator motor's drive, the drive frame drives in proper order and mixes pole and stirring montant and be anticlockwise rotation, the conveyer pipe drives the stirring needle and is clockwise rotation, stir fully to the reactant that is located the retort bottom through stirring montant and stirring, thereby strengthen the stirring degree of reactant, and prevent reactant siltation in the discharge tube through the stirring needle further, avoid blockking up, make the inside wall and the bottom lateral wall of the retort scrape down when unloading through scraping the wall filler rod, avoid the wall built-up to adhere to, avoid the during continuous operation back and forth reaction mutual interference, support the conveying pipe through supporting sleeve supporting ring and second thrust bearing, avoid taking off.

Drawings

The present utility model is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.

FIG. 1 is a front view of the overall internal structure of the present utility model;

FIG. 2 is a top view showing the overall structure of the reaction tank body of the present utility model;

FIG. 3 is a front view showing the overall internal structure of the present utility model and the internal structure of the drive tube;

FIG. 4 is an enlarged schematic view of area A of FIG. 3;

in the figure: 1. a reaction tank body; 2. a charging barrel; 3. a stirring motor; 4. a drive gear; 5. a driven gear; 6. a first toothed disc; 7. a second toothed disc; 8. a third toothed disc; 9. a sealing separator; 10. a transmission cylinder; 11. a transmission tube; 12. a support frame; 13. a transmission frame; 14. a first blade; 15. a second blade; 16. an exhaust hole; 17. a bottom stirring rod; 18. stirring the vertical rod; 19. a limit sleeve; 20. scraping wall molding; 21. a discharge tube; 22. a stirring pin; 23. an electromagnetic valve; 24. a temperature control layer; 25. a temperature control tube; 26. a heat preservation layer; 27. an air inlet pipe; 28. sealing the bearing; 29. a first thrust bearing; 30. a support sleeve; 31. a second thrust bearing; 32. a support ring; 33. an air outlet hole; 34. a transmission rod.

Detailed Description

In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.

Please refer to fig. 1-4: the utility model provides a lime nitrogen hydrolysises cooling reation kettle, including the retort body 1, the fixed wear of top of the retort body 1 is equipped with a plurality of reinforced section of thick bamboo 2, a plurality of reinforced section of thick bamboo 2 is equiangular evenly distributed, the inboard upper portion fixed mounting of the retort body 1 has sealed baffle 9, sealed baffle 9 and sealed connection with sealed baffle 9 are run through to the lower extreme of reinforced section of thick bamboo 2, sealed baffle 9 and sealed rotary connection of section of thick bamboo 10 are worn to the axle center department activity of sealed baffle 9, the middle part movable sleeve of sealed baffle 10 is equipped with driving tube 11, the middle part movable sleeve of driving tube 11 is equipped with intake pipe 27, the support frame 12 is installed to the periphery bilateral symmetry of driving tube 10, driving frame 13 is vertically installed to one end of support frame 12, one side fixedly connected with a plurality of being equidistant evenly distributed's first paddle 14 of driving frame 13, the middle part periphery both sides of driving tube 11 just is located the below fixedly connected with a plurality of being equidistant evenly distributed's second paddle 15, first paddle 14 and second paddle 15 are crisscross distributed, the lower periphery of intake pipe 27 has run through and has seted up a plurality of being annular evenly distributed's air outlet hole 33, a plurality of is located between the equal position of exhaust hole 16 of running through between the equal periphery of driving tube 11.

In this embodiment, six charging barrels 2 are adopted, during operation, each first blade 14 and each second blade 15 are moved first, so that each first blade 14 and each second blade 15 are coplanar, meanwhile, any charging barrel 2 is prevented from being located right above each first blade 14 or each second blade 15, the first blade 14 or each second blade 15 is prevented from interfering with charging, then charging is carried out into the reaction tank 1 through the charging barrel 2, each powder and each water liquid are added into the reaction tank 1 through different charging barrels 2 according to different process contents, after the charging is completed, the charging barrel 2 is closed, uniform reverse rotation is carried out through the transmission barrel 10 and the transmission tube 11, the transmission barrel 10 sequentially drives the support frame 12, the transmission frame 13 and the first blade 14 to rotate, and the transmission tube 11 drives the second blade 15 to rotate in the opposite direction to the first blade 14, so that the powder and the water liquid are uniformly mixed together, the reaction is conveniently carried out to the reaction tank through the air inlet pipe 27, the transmission tube 11 and the air outlet hole 16, and the reaction is further promoted rapidly and fully.

The stirring motor 3 is installed on one side of the top of the reaction tank body 1, the driving shaft of the stirring motor 3 vertically downwards and movably penetrates through the top of the reaction tank body 1, the driving rod 34 is fixedly connected to the lower end of the driving shaft of the stirring motor 3, the driving gear 4 is fixedly connected to the lower end of the driving rod 34, one side of the driving gear 4 is provided with the driven gear 5, the driving gear 4 and the driven gear 5 are in meshed transmission, the first fluted disc 6 is fixedly connected to the lower portion of the driven gear 5, the third fluted disc 8 is arranged below the first fluted disc 6, a plurality of second fluted discs 7 are arranged between the first fluted disc 6 and the third fluted disc 8, the plurality of second fluted discs 7 are uniformly distributed at equal angles, the transmission is respectively meshed between the first fluted disc 6 and the second fluted disc 7 and between the third fluted disc 8 and the second fluted disc 7, the third fluted disc 8 is in rotary connection with the sealing partition 9 through the first thrust bearing 29, the transmission tube 11 penetrates through the driven gear 5 and the first fluted disc 6 in a sealing and fixedly connected mode, the transmission tube 10 penetrates through the third fluted disc 8 in a sealing and is in rotary connection with the transmission tube 11.

In this embodiment, the stirring motor 3 rotates the driving rod 34 and the driving gear 4 in sequence, drives the driven gear 5 and the first fluted disc 6 in sequence, and drives the first fluted disc 6 and the third fluted disc 8 to rotate reversely in synchronization through the transmission of the second fluted disc 7, in this embodiment, the first fluted disc 6 drives the driving tube 11 to rotate clockwise, the third fluted disc 8 drives the driving tube 10 to rotate anticlockwise, the sealing partition plate 9 is stably supported through the first thrust bearing 29, rotation resistance is avoided, and rotation resistance is reduced.

The periphery of the reaction tank body 1 is sequentially covered with a temperature control layer 24 and an insulating layer 26 from inside to outside, a plurality of temperature control pipes 25 which are uniformly distributed at equal intervals are buried in the temperature control layer 24, a discharge pipe 21 is connected to the bottom of the reaction tank body 1 in a penetrating manner, and an electromagnetic valve 23 for stopping discharging is arranged at the lower end of the discharge pipe 21.

In this embodiment, the temperature control pipe 25 is a hollow metal pipe, and the heat conducting mediums with different temperatures are input into the temperature control pipe 25, so that the temperature in the reaction tank 1 is controlled, the heat is insulated through the heat preservation layer 26, the internal heat is prevented from affecting the external environment, and the opening and closing of the discharge pipe 21 are controlled through the electromagnetic valve 23, so that the timely discharging is facilitated.

The lower extreme fixedly connected with of drive frame 13 is mixed pole 17 at the bottom, and drive frame 13 is mixed pole 17 and support frame 12 coplaner at the bottom, and the lower part periphery activity of drive pipe 11 has cup jointed stop sleeve 19, mixes pole 17 at the bottom and stop sleeve 19 fixed connection, and the upper portion fixedly connected with of bottom mix pole 17 is a plurality of evenly distributed's of equidistance stirring montant 18, and the lower extreme of drive pipe 11 stretches into in the discharge tube 21, and the lower extreme periphery fixedly connected with of drive pipe 11 is a plurality of evenly distributed's of stirring needle 22.

In this embodiment, under the driving of the stirring motor 3, the transmission frame 13 sequentially drives the bottom stirring rod 17 and the stirring vertical rod 18 to rotate anticlockwise, the transmission pipe 11 drives the stirring needle 22 to rotate clockwise, and reactants at the bottom of the reaction tank body 1 are sufficiently stirred through the stirring vertical rod 18 and the stirring needle 22, so that the stirring uniformity of the reactants is enhanced, and the reactants are further prevented from accumulating in the discharge pipe 21 through the stirring needle 22, so that blocking is avoided.

The transmission frame 13 and the periphery of the bottom stirring rod 17 are both provided with scraping wall embedded strips 20, and the scraping wall embedded strips 20 are used for scraping the inner side wall and the bottom side wall of the reaction tank body 1 during discharging, so that wall attachment is avoided, cleanliness is improved, and mutual interference of front and rear reactions during continuous operation is avoided.

The lower extreme fixedly connected with support ring 32 of transmission section of thick bamboo 10, support ring 32 activity cup joints in transmission pipe 11 periphery, and the fixed cover in periphery of transmission pipe 11 is equipped with support sleeve 30, and support sleeve 30 passes through second thrust bearing 31 and support ring 32 rotation to be connected, and during operation is further supported transmission pipe 11 through support sleeve 30 support ring 32 and second thrust bearing 31, avoids taking off.

The upper end of the drive tube 11 is connected with the air inlet tube 27 in a sealing and rotating way through a sealing bearing 28.

When the utility model is used, each first blade 14 and each second blade 15 are moved firstly, so that each first blade 14 and each second blade 15 are coplanar, any charging barrel 2 is prevented from being positioned right above the first blade 14 or the second blade 15, the first blade 14 or the second blade 15 is prevented from interfering charging, then charging is carried out in the reaction tank 1 through the charging barrel 2, each powder and water liquid are added into the reaction tank 1 through different charging barrels 2 according to different process contents, the charging barrel 2 is closed after the addition is finished, the stirring motor 3 sequentially rotates the transmission rod 34 and the driving gear 4, the driven gear 5 and the first fluted disc 6 are sequentially driven, the first fluted disc 6 and the third fluted disc 8 synchronously rotate reversely through the transmission of the second fluted disc 7, in this embodiment, the first fluted disc 6 drives the driving tube 11 to rotate clockwise, the third fluted disc 8 drives the driving tube 10 to rotate anticlockwise, the sealing baffle 9 is stably supported through the first thrust bearing 29, the rotation is prevented from being blocked, the rotation resistance is reduced, the driving tube 10 and the driving tube 11 rotate at uniform speed in opposite directions, the driving tube 10 sequentially drives the supporting frame 12, the driving frame 13 and the first blade 14 to rotate, the driving tube 11 drives the second blade 15 to rotate in the opposite direction to the first blade 14, so that powder and water are uniformly mixed together to react fully, and the air is conveniently supplied to the reaction kettle from the outside through the air inlet tube 27, the driving tube 11 and the air outlet hole 16, so that the reaction is further promoted, and the reaction is rapid and full;

the temperature in the reaction tank body 1 is controlled by inputting heat conducting media with different temperatures into the temperature control tube 25, the heat insulation layer 26 is used for heat insulation, the internal heat and the external environment are prevented from being influenced mutually, the electromagnetic valve 23 is used for controlling the opening and closing of the discharge tube 21, timely discharging is facilitated, the transmission frame 13 sequentially drives the bottom stirring rod 17 and the stirring vertical rod 18 to rotate anticlockwise under the driving of the stirring motor 3, the transmission tube 11 drives the stirring needle 22 to rotate clockwise, reactants at the bottom of the reaction tank body 1 are sufficiently stirred through the stirring vertical rod 18 and the stirring needle 22, stirring uniformity of the reactants is enhanced, the reactants are further prevented from being deposited in the discharge tube 21 through the stirring needle 22, blocking is avoided, the inner side wall and the bottom side wall of the reaction tank body 1 are prevented from being scraped during discharging through the scraping wall filler rod 20, wall hanging is avoided, the cleanliness is improved, the front-back reaction is prevented from being interfered mutually during continuous operation, and the supporting sleeve 30 is used for supporting the ring 32 and the second thrust bearing 31 is further used for supporting the transmission tube 11, and loosening is avoided.

The present utility model is not limited to the above embodiments, but is not limited to the above embodiments, and any modifications, equivalents and variations made to the above embodiments according to the technical matter of the present utility model can be made by those skilled in the art without departing from the scope of the technical matter of the present utility model.

Claims (6)

1. The utility model provides a lime nitrogen hydrolysis cooling reation kettle, its characterized in that, including the retort body (1), the fixed wear of top of retort body (1) is equipped with a plurality of feed cylinder (2), a plurality of feed cylinder (2) are equiangular evenly distributed, the inboard upper portion fixed mounting of retort body (1) has sealed baffle (9), and the lower extreme of feed cylinder (2) runs through sealed baffle (9) and with sealed baffle (9) sealing connection, sealed baffle (9) axle center department activity wears to be equipped with transmission section of thick bamboo (10), and sealed baffle (9) are connected with transmission section of thick bamboo (10) sealing rotation, and the middle part movable sleeve of transmission section of thick bamboo (10) is equipped with transmission pipe (11), and the middle part movable sleeve of transmission pipe (11) is equipped with intake pipe (27), the periphery bilateral symmetry of transmission section of thick bamboo (10) installs support frame (12), and the one end vertical transmission frame (13) of support frame (13) are close to one side fixed connection of transmission section of thick bamboo (11) has a plurality of first paddle (14) that are equidistant evenly distributed, the periphery of transmission section of thick bamboo (11) and the second paddle (15) that are evenly distributed down in the equal distance to be located in the second paddle (15), the lower part periphery of intake pipe (27) runs through and has offered a plurality of ventholes (33) that are annular array evenly distributed, the periphery of transfer line (11) just is located the position between adjacent second paddle (15) and has all run through and have offered a plurality of exhaust hole (16).

2. The lime nitrogen hydrolysis cooling reaction kettle according to claim 1, wherein a stirring motor (3) is installed on one side of the top of the reaction tank body (1), a driving shaft of the stirring motor (3) vertically and movably penetrates through the top of the reaction tank body (1), a driving rod (34) is fixedly connected to the lower end of the driving shaft of the stirring motor (3), a driving gear (4) is fixedly connected to the lower end of the driving rod (34), and a driven gear (5) is arranged on one side of the driving gear (4).

3. The lime nitrogen hydrolysis cooling reaction kettle according to claim 2, wherein the lower part of the driven gear (5) is fixedly connected with a first fluted disc (6), a third fluted disc (8) is arranged below the first fluted disc (6), a plurality of second fluted discs (7) are arranged between the first fluted disc (6) and the third fluted disc (8), the plurality of second fluted discs (7) are uniformly distributed at equal angles, transmission is meshed between the first fluted disc (6) and the second fluted disc (7) and between the third fluted disc (8) and the second fluted disc (7) respectively, the third fluted disc (8) is in rotary connection with a sealing partition plate (9) through a first thrust bearing (29), a transmission tube (11) penetrates and is in sealing fixed connection with the driven gear (5) and the first fluted disc (6), a transmission tube (10) penetrates and is in sealing fixed connection with the third fluted disc (8), and the transmission tube (10) is in sealing rotary connection with the transmission tube (11).

4. The lime nitrogen hydrolysis cooling reaction kettle according to claim 1, wherein the periphery of the reaction tank body (1) is sequentially covered with a temperature control layer (24) and an insulating layer (26) from inside to outside, a plurality of temperature control pipes (25) which are uniformly distributed at equal intervals are buried in the temperature control layer (24), a discharge pipe (21) is connected at the bottom of the reaction tank body (1) in a penetrating manner, and an electromagnetic valve (23) for stopping discharge is arranged at the lower end of the discharge pipe (21).

5. The lime nitrogen hydrolysis cooling reaction kettle according to claim 1, wherein the lower end of the transmission frame (13) is fixedly connected with a bottom stirring rod (17), the transmission frame (13) is coplanar with the bottom stirring rod (17) and the supporting frame (12), a limit sleeve (19) is movably sleeved on the periphery of the lower part of the transmission pipe (11), the bottom stirring rod (17) is fixedly connected with the limit sleeve (19), a plurality of stirring vertical rods (18) which are uniformly distributed at equal intervals are fixedly connected on the upper part of the bottom stirring rod (17), the lower end of the transmission pipe (11) extends into the discharge pipe (21), and a plurality of stirring needles (22) which are uniformly distributed in an array are fixedly connected on the periphery of the lower end of the transmission pipe (11).

6. The lime nitrogen hydrolysis cooling reaction kettle according to claim 1, wherein the outer circumferences of the transmission frame (13) and the bottom stirring rod (17) are respectively provided with a scraping wall filler rod (20), the lower end of the transmission barrel (10) is fixedly connected with a support ring (32), the support ring (32) is movably sleeved on the outer circumference of the transmission pipe (11), the outer circumference of the transmission pipe (11) is fixedly sleeved with a support sleeve (30), the support sleeve (30) is rotationally connected with the support ring (32) through a second thrust bearing (31), and the upper end of the transmission pipe (11) is rotationally connected with the air inlet pipe (27) in a sealing manner through a sealing bearing (28).