Urea sulfate reaction device

Abstract

The utility model discloses a urea sulfate reaction device which comprises a reaction tank, a stirring shaft is rotationally connected into the reaction tank, stirring blades are fixed to the outer wall of the stirring shaft, a driving motor fixed to the stirring shaft is fixed to the top end of the reaction tank, the two sides of the top end of the reaction tank communicate with a urea pipe and a sulfuric acid pipe correspondingly, and the two discharging boxes are rotationally arranged on the two sides of the top end of the inner wall of the reaction tank correspondingly. Urea and sulfuric acid are discharged in through a urea pipe and a sulfuric acid pipe correspondingly, the urea and the sulfuric acid are conveyed into the two discharging boxes correspondingly, then when a driving motor drives a stirring shaft and stirring blades to rotate, the two discharging boxes can be driven to rotate in cooperation with use of a rotating assembly, and when the two discharging boxes rotate, under the effect of rotating centrifugal force, the two discharging boxes are driven to rotate. Urea and sulfuric acid can be uniformly sprinkled in the reaction tank, and the urea and the sulfuric acid are preliminarily mixed together, so that rapid mixing and stirring of the urea and the sulfuric acid are facilitated, and the stirring efficiency of the urea and the sulfuric acid is improved.

Description

Technical Field

[0001] This utility model belongs to the field of urea sulfate production technology, and specifically relates to a urea sulfate reaction device. Background Technology

[0002] White granular crystals, extremely soluble in water but insoluble in organic solvents, with a melting point of 117.3℃. A 1% aqueous solution has a pH of 1. It has low thermal stability and is prone to decomposition when heated. Urea sulfate can be produced by combining urea and sulfuric acid. Urea sulfate composed of sulfuric acid and urea mainly has two molecular ratios: 1:1 or 1:2. Both of these are relatively stable solids, but both are hygroscopic and easily deliquesce when stored in air.

[0003] A novel urea sulfate reaction tank, as disclosed in patent document CN204724159U, includes a tank body with a water jacket on its outer surface. The water jacket has a cooling water inlet and a cooling water outlet. Inside the tank body is a rotating shaft connected to a reducer located above the water jacket. The reducer is connected to a motor. A stirring device is mounted on the rotating shaft. The stirring device includes a housing with a central wheel mounted at its center. Two positioning rings are fixed between the central wheel and the housing. Two driven gears are symmetrically installed inside the housing, each with a fixed shaft. Stirring blades are mounted at the upper and lower ends of the fixed shafts. Elastic retaining rings and bushings are located above and below each driven gear, respectively, and are mounted on the fixed shafts. The advantages of this invention are its reasonable structure, small size, quick installation, and ability to effectively achieve thorough stirring.

[0004] However, when the raw materials are fed into the tank for mixing, the positions of the feed inlet and the sulfuric acid inlet are fixed, which means that the positions of the urea and sulfuric acid feed are also fixed. As a result, the urea and sulfuric acid are in a separate state during mixing, which increases the mixing time of the urea and sulfuric acid, making it difficult to mix the raw materials quickly and reducing the mixing efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a urea sulfate reaction apparatus to solve the technical problem in the background art where urea and sulfuric acid are separated and difficult to mix.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A urea sulfate reaction apparatus includes: a reaction vessel; a stirring shaft is rotatably connected inside the reaction vessel, stirring blades are fixed to the outer wall of the stirring shaft, a drive motor fixed to the top of the reaction vessel and the stirring shaft is fixed to the top of the reaction vessel, and urea pipes and sulfuric acid pipes are respectively connected to the two sides of the top of the reaction vessel.

[0008] Two discharge boxes are respectively rotatably installed on both sides of the top of the inner wall of the reaction vessel, and the two discharge boxes are respectively located below the urea pipe and the sulfuric acid pipe;

[0009] A rotating assembly, disposed on the outer wall of the stirring shaft, is connected to two discharge boxes respectively, for driving the rotation of the two discharge boxes; and

[0010] Two support assemblies are respectively installed at the top of the two discharge boxes. Both support assemblies are connected to the reaction vessel and are used to support the rotation of the discharge boxes.

[0011] Furthermore, to facilitate the feeding and conveying of sulfuric acid and urea, each of the two discharge boxes has a feed inlet at the middle of its top, and the urea pipe and sulfuric acid pipe respectively pass through the two feed inlets. Each of the two discharge boxes has multiple discharge outlets at its bottom.

[0012] Furthermore, in order to drive the rotation of the two discharge boxes, the rotating assembly includes a drive wheel sleeved on the outer wall of the stirring shaft, and driven wheels that mesh with the drive wheel are sleeved on the outer walls of both discharge boxes.

[0013] Furthermore, in order to maintain the stability of the discharge box rotation, the support assembly includes support blocks fixedly installed on both sides of the top of the discharge box, and an annular groove for the support blocks to slide is opened at the top of the inner wall of the reaction vessel.

[0014] Furthermore: In order to depressurize the reaction vessel, a gas pipe is connected to one side of the reaction vessel, and a support plate is fixed to one side of the reaction vessel. A plug for sealing the gas pipe is slidably provided on one side of the support plate, and the plug is connected to the support plate through an elastic component.

[0015] Furthermore, to facilitate the movement of the plug, the elastic component includes a movable plate fixedly mounted on one side of the plug, a slider fixed at one end of the movable plate, a groove for the slider to slide on one side of the support plate, the groove being fixedly connected to the slider by a first spring, and a buffer component on one side of the slider.

[0016] Furthermore, in order to reduce the collision during the movement of the plug, the buffer assembly includes a sleeve fixedly disposed on one side of the slider, a buffer rod inserted through one side of the sleeve, a buffer plate fixed to one end of the buffer rod, and the other end of the buffer rod fixedly connected to the inside of the sleeve through a damper, and a second spring sleeved on the outer wall of the damper.

[0017] Furthermore, to protect the buffer plate, a rubber pad is fixed to the side of the buffer plate away from the buffer rod.

[0018] In summary, this utility model has the following beneficial effects:

[0019] ① When feeding urea and sulfuric acid, urea and sulfuric acid are discharged through urea pipe and sulfuric acid pipe respectively, so that urea and sulfuric acid are delivered to two discharge boxes respectively. Then, with the drive motor driving the stirring shaft and stirring blades to rotate, the two discharge boxes can be rotated in conjunction with the use of the rotating component. During the rotation of the two discharge boxes, under the action of centrifugal force, urea and sulfuric acid can be evenly sprinkled into the reaction tank, so that urea and sulfuric acid are initially mixed together, thereby facilitating the rapid mixing and stirring of urea and sulfuric acid and improving the stirring efficiency of urea and sulfuric acid.

[0020] ② When the pressure inside the reaction vessel increases during the stirring reaction of urea and sulfuric acid, and the pressure inside the reaction vessel exceeds the pressure that the reaction vessel can withstand, the pressure inside the reaction vessel will cause the plug to move outward, separating the plug from the gas pipe. This allows the pressure to be released from the reaction vessel through the gas pipe. When the pressure inside the reaction vessel is less than the pressure that the reaction vessel can withstand, the elastic component will cause the plug to reset, sealing the gas pipe and stopping the pressure release from the reaction vessel. This facilitates the automatic pressure release of the reaction vessel, thereby facilitating the normal stirring operation of the reaction vessel and improving the stirring efficiency of urea and sulfuric acid. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the planar structure of the reaction vessel of this utility model;

[0023] Figure 3 This is the utility model Figure 2 A magnified view of the structure at point A in the middle;

[0024] Figure 4 This is a schematic diagram of the elastic component structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the buffer component structure of this utility model;

[0026] In the diagram, 1. Reaction vessel; 2. Stirring shaft; 3. Stirring blade; 4. Drive motor; 5. Urea pipe; 6. Sulfuric acid pipe; 7. Discharge box; 8. Inlet; 9. Outlet; 10. Rotating assembly; 101. Drive wheel; 102. Driven wheel; 11. Support assembly; 111. Support block; 112. Annular groove; 12. Gas pipe; 13. Support plate; 14. Plug; 15. Elastic assembly; 151. Moving plate; 152. Slider; 153. Slide groove; 154. First spring; 16. Buffer assembly; 161. Sleeve; 162. Buffer rod; 163. Buffer plate; 164. Damper; 165. Second spring. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Please see Figures 1-5 The present invention provides the following technical solution:

[0029] A urea sulfate reaction apparatus includes: a reaction vessel 1; a stirring shaft 2 is rotatably connected inside the reaction vessel 1, stirring blades 3 are fixed on the outer wall of the stirring shaft 2, a drive motor 4 fixed to the top of the reaction vessel 1 and the stirring shaft 2 is fixed on the top two sides of the top of the reaction vessel 1 respectively, and a urea pipe 5 and a sulfuric acid pipe 6 are respectively connected to the top of the reaction vessel 1.

[0030] Two discharge boxes 7 are respectively rotatably installed on both sides of the top of the inner wall of the reaction tank 1, and the two discharge boxes 7 are located below the urea pipe 5 and the sulfuric acid pipe 6 respectively.

[0031] A rotating assembly 10 is disposed on the outer wall of the stirring shaft 2. The rotating assembly 10 is connected to two discharge boxes 7 respectively, and is used to drive the rotation of the two discharge boxes 7; and

[0032] Two support components 11 are respectively installed at the top of the two discharge boxes 7. Both support components 11 are connected to the reaction vessel 1 and are used to support the rotation of the discharge boxes 7.

[0033] In this embodiment, when feeding urea and sulfuric acid, urea and sulfuric acid are discharged through urea pipe 5 and sulfuric acid pipe 6 respectively, so that urea and sulfuric acid are respectively transported to two discharge boxes 7. Then, as the drive motor 4 drives the stirring shaft 2 and stirring blade 3 to rotate, in conjunction with the use of the rotating component 10, the two discharge boxes 7 can be driven to rotate. As the two discharge boxes 7 rotate, urea and sulfuric acid can be evenly sprinkled into the reaction tank 1, so that urea and sulfuric acid are initially mixed together, thereby facilitating the rapid mixing and stirring of urea and sulfuric acid and improving the stirring efficiency of urea and sulfuric acid.

[0034] It should be noted that, since sulfuric acid is corrosive, both the sulfuric acid pipe 6 and the discharge box 7 are made of corrosion-resistant materials, such as Hastelloy.

[0035] In a further embodiment, such as Figure 2 As shown, each of the two discharge boxes 7 has a feed inlet 8 at the middle of its top, and the urea pipe 5 and the sulfuric acid pipe 6 pass through the two feed inlets 8 respectively. Each of the two discharge boxes 7 has multiple discharge outlets 9 at its bottom.

[0036] In this embodiment, the feed inlet 8 is designed so that the urea pipe 5 and the sulfuric acid pipe 6 extend into the discharge box 7, facilitating the delivery of urea and sulfuric acid into the discharge box 7. Furthermore, the urea pipe 5 and the sulfuric acid pipe 6 do not contact the feed inlet 8, thus avoiding interference with the normal rotation of the discharge box 7. Multiple discharge ports 9 are evenly distributed at the bottom of the discharge box 7, and these ports are arranged in a straight line. During the rotation of the discharge box 7, under the action of centrifugal force, urea and sulfuric acid can be evenly distributed into the reaction tank 1 through the discharge ports 9, facilitating the mixing and stirring of urea and sulfuric acid and improving the stirring efficiency of urea and sulfuric acid.

[0037] In a further embodiment, such as Figure 3 As shown, the rotating assembly 10 includes a drive wheel 101 sleeved on the outer wall of the stirring shaft 2, and driven wheels 102 that mesh with the drive wheel 101 are sleeved on the outer walls of the two discharge boxes 7.

[0038] In this embodiment, when the drive motor 4 is in motion, it drives the stirring shaft 2 and the stirring blade 3 to rotate. The stirring shaft 2 drives the drive wheel 101 to rotate, and the drive wheel 101 drives the driven wheel 102 to rotate, thereby driving the discharge box 7 to rotate. When the discharge box 7 rotates, urea and sulfuric acid can be sprayed into the reaction tank 1 through the discharge port 9.

[0039] In a further embodiment, such as Figure 3 As shown, the support assembly 11 includes support blocks 111 fixedly installed on both sides of the top of the discharge box 7, and an annular groove 112 is provided at the top of the inner wall of the reaction vessel 1 for the support blocks 111 to slide.

[0040] In this embodiment, when the discharge box 7 rotates, it drives the support block 111 to slide in the annular groove 112. With the cooperation of the support block 111 and the annular groove 112, the discharge box 7 can be provided with auxiliary support to maintain the stability of the rotation of the discharge box 7.

[0041] In a further embodiment, such as Figure 1 As shown, a gas pipe 12 is connected to one side of the reaction vessel 1, and a support plate 13 is fixed to one side of the reaction vessel 1. A plug 14 for sealing the gas pipe 12 is slidably provided on one side of the support plate 13. The plug 14 is connected to the support plate 13 through an elastic component 15.

[0042] In this embodiment, when the pressure inside the reaction tank 1 increases during the stirring reaction of urea and sulfuric acid, and when the pressure inside the reaction tank 1 exceeds the pressure that the reaction tank 1 can withstand, the pressure inside the reaction tank 1 causes the plug 14 to move outward, separating the plug 14 from the gas pipe 12. This allows the pressure inside the reaction tank 1 to be released through the gas pipe 12. When the pressure inside the reaction tank 1 is less than the pressure that the reaction tank 1 can withstand, the elastic component 15 causes the plug 14 to reset, sealing the gas pipe 12 and stopping the pressure release of the reaction tank 1. This facilitates the automatic pressure release of the reaction tank 1, thereby facilitating the normal stirring operation of the reaction tank 1 and improving the stirring efficiency of urea and sulfuric acid.

[0043] In a further embodiment, such as Figure 4 As shown, the elastic component 15 includes a movable plate 151 fixedly disposed on one side of the plug 14. A slider 152 is fixedly disposed at one end of the movable plate 151. A groove 153 for sliding the slider 152 is provided on one side of the support plate 13. The groove 153 is fixedly connected to the slider 152 by a first spring 154. A buffer component 16 is provided on one side of the slider 152.

[0044] In this embodiment, when the pressure inside the reaction vessel 1 exceeds the pressure it can withstand, the pressure inside the reaction vessel 1 causes the plug 14 to move outward away from the trachea 12. The plug 14 then moves the moving plate 151, which in turn moves the slider 152. During its movement, the slider 152 compresses the first spring 154, thus releasing pressure from the reaction vessel 1 through the trachea 12. When the pressure inside the reaction vessel 1 is less than the pressure it can withstand, the first spring 154 acts elastically, causing the slider 152 to reset. The slider 152 then moves the moving plate 151 back to its original position, which in turn resets the plug 14, causing it to close the trachea 12 again and stop the pressure release from the reaction vessel 1. The elastic force of the first spring 154 is consistent with the pressure it can withstand, allowing the first spring 154 to change accordingly when the pressure inside the reaction vessel 1 changes.

[0045] In a further embodiment, such as Figure 5 As shown, the buffer assembly 16 includes a sleeve 161 fixedly disposed on one side of the slider 152. A buffer rod 162 is inserted and connected to one side of the sleeve 161. A buffer plate 163 is fixed to one end of the buffer rod 162. The other end of the buffer rod 162 is fixedly connected to the inside of the sleeve 161 through a damper 164. A second spring 165 is sleeved on the outer wall of the damper 164. A rubber pad is fixed to the side of the buffer plate 163 away from the buffer rod 162.

[0046] In this embodiment, when the plug 14 drives the slider 152 to move outward, if the slider 152 is about to hit the inner wall of the groove 153, the slider 152 drives the buffer plate 163 to contact the inner wall of the groove 153 first. Under the impact, the buffer plate 163 moves, and the buffer plate 163 drives the buffer rod 162 to move. During the movement of the buffer rod 162, it squeezes the damper 164 and the second spring 165. With the cooperation of the damper 164 and the second spring 165, the slider 152 can be buffered, thereby buffering the plug 14, avoiding damage to the plug 14, and facilitating the use of the plug 14.

[0047] Brief description of usage:

[0048] In use, when feeding urea and sulfuric acid, urea and sulfuric acid are discharged through urea pipe 5 and sulfuric acid pipe 6 respectively, so that urea and sulfuric acid are conveyed to two discharge boxes 7 through feed inlet 8 respectively. Then, as the drive motor 4 drives the stirring shaft 2 and stirring blade 3 to rotate, the stirring shaft 2 drives the rotation of the drive wheel 101, which in turn drives the rotation of the driven wheel 102, thereby driving the rotation of the discharge box 7. As the discharge box 7 rotates, under the action of centrifugal force, urea and sulfuric acid can be evenly sprinkled into the reaction tank 1 through the discharge port 9, which facilitates the mixing and stirring of urea and sulfuric acid and improves the stirring efficiency of urea and sulfuric acid.

[0049] When the pressure inside reaction tank 1 increases during the stirring reaction of urea and sulfuric acid, and this pressure exceeds the pressure tank 1 can withstand, the pressure inside the reaction tank 1 causes the plug 14 to move outward, separating it from the gas pipe 12. The plug 14 then moves the moving plate 151, which in turn moves the slider 152. During its movement, the slider 152 compresses the first spring 154, thus releasing pressure from the reaction tank 1 through the gas pipe 12. When the pressure inside reaction tank 1 is less than the pressure tank 1 can withstand, the first spring 154, acting elastically, causes the slider 152 to reset. The slider 152 then moves the moving plate 151 back to its original position, which in turn resets the plug 14, causing it to re-close the gas pipe 12 and stop the pressure release from the reaction tank 1. This facilitates the automatic pressure release of the reaction tank 1, allowing for normal stirring operations and improving the stirring efficiency of urea and sulfuric acid.

[0050] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A urea sulfate reaction apparatus, comprising: The reaction vessel (1) is characterized in that: a stirring shaft (2) is rotatably connected inside the reaction vessel (1), a stirring blade (3) is fixed on the outer wall of the stirring shaft (2), a drive motor (4) fixed to the stirring shaft (2) is fixed at the top of the reaction vessel (1), and a urea pipe (5) and a sulfuric acid pipe (6) are respectively connected to the two sides of the top of the reaction vessel (1). Two discharge boxes (7) are respectively rotatably installed on both sides of the top of the inner wall of the reaction vessel (1), and the two discharge boxes (7) are respectively located below the urea pipe (5) and the sulfuric acid pipe (6); A rotating assembly (10) is disposed on the outer wall of the stirring shaft (2). The rotating assembly (10) is connected to two discharge boxes (7) respectively, and is used to drive the rotation of the two discharge boxes (7); and Two support components (11) are respectively set at the top of the two discharge boxes (7). Both support components (11) are connected to the reaction vessel (1) and are used to support the rotation of the discharge boxes (7).

2. The urea sulfate reaction apparatus according to claim 1, characterized in that: The top of each of the two discharge boxes (7) is provided with a feed inlet (8), and the urea pipe (5) and sulfuric acid pipe (6) are respectively inserted into the two feed inlets (8). The bottom of each of the two discharge boxes (7) is provided with multiple discharge outlets (9).

3. The urea sulfate reaction apparatus according to claim 2, characterized in that: The rotating assembly (10) includes a drive wheel (101) sleeved on the outer wall of the stirring shaft (2), and driven wheels (102) that mesh with the drive wheel (101) are sleeved on the outer walls of the two discharge boxes (7).

4. The urea sulfate reaction apparatus according to claim 3, characterized in that: The support assembly (11) includes support blocks (111) fixedly installed on both sides of the top of the discharge box (7), and an annular groove (112) for the support blocks (111) to slide is provided at the top of the inner wall of the reaction tank (1).

5. The urea sulfate reaction apparatus according to claim 1, characterized in that: One side of the reaction vessel (1) is connected to a gas pipe (12), and a support plate (13) is fixed on one side of the reaction vessel (1). A plug (14) for sealing the gas pipe (12) is slidably provided on one side of the support plate (13). The plug (14) is connected to the support plate (13) through an elastic component (15).

6. The urea sulfate reaction apparatus according to claim 5, characterized in that: The elastic component (15) includes a movable plate (151) fixedly disposed on one side of the plug (14), a slider (152) fixed at one end of the movable plate (151), a groove (153) for sliding the slider (152) is provided on one side of the support plate (13), the groove (153) is fixedly connected to the slider (152) by a first spring (154), and a buffer component (16) is provided on one side of the slider (152).

7. The urea sulfate reaction apparatus according to claim 6, characterized in that: The buffer assembly (16) includes a sleeve (161) fixedly disposed on one side of the slider (152). A buffer rod (162) is inserted and connected to one side of the sleeve (161). A buffer plate (163) is fixed to one end of the buffer rod (162). The other end of the buffer rod (162) is fixedly connected to the inside of the sleeve (161) through a damper (164). A second spring (165) is sleeved on the outer wall of the damper (164).

8. The urea sulfate reaction apparatus according to claim 7, characterized in that: A rubber pad is fixed to the side of the buffer plate (163) away from the buffer rod (162).

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