Large-particle urea production device

Abstract

The utility model relates to the technical field of large-particle urea production auxiliary devices, in particular to a large-particle urea production device, which comprises a washer and a controller fixedly connected to the upper end of the washer, and is characterized in that the upper end of the washer is fixedly communicated with a feed pipe, the bottom of the washer is fixedly communicated with an inlet end of an auxiliary discharge pipe, and the bottom of the auxiliary discharge pipe is fixedly communicated with a discharge pipe. An electromagnetic valve electrically connected with the controller is installed on the auxiliary discharge pipe, the outlet end of the auxiliary discharge pipe is fixedly communicated with the inlet end of a metering pump, the outlet end of the metering pump is fixedly communicated with the inlet end of a material buffer tank, and the metering pump is electrically connected with the controller; a liquid level control device which is electrically connected with the controller and used for controlling opening and closing of the electromagnetic valve is arranged at the upper end of the washer, and the liquid level control device is further associated with a liquid level warning device used in cooperation with the controller.

Description

Technical Field

[0001] The utility model relates to the technical field of large-particle urea production auxiliary devices, in particular to a large-particle urea production device. Background Art

[0002] According to many years of experience in the production of large-particle urea, in the washing system for the production of large-particle urea, the dust from the granulator contains a certain amount of synergist components. A large amount of granulator dust enters the scrubber and is washed and absorbed by adding water. In this process, if the liquid level of the scrubber is controlled too high, it will increase the replacement time of a synergist and also increase the quality of the intermediate product, which will seriously affect the subsequent production. Therefore, in the production process of large-particle urea, it is necessary to lower the liquid level of the scrubber in time to ensure the normal production of large-particle urea. In this regard, the present application specifically proposes a large-particle urea production device that can automatically control the liquid level of the scrubber. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a large-particle urea production device, which solves the problem. The technical solution is to include a scrubber, the upper end of which is fixedly connected to a controller, characterized in that the upper end of the scrubber is fixedly connected to a feed pipe, the bottom of the scrubber is fixedly connected to the inlet end of a secondary discharge pipe, an electromagnetic valve electrically connected to the controller is installed on the secondary discharge pipe, the outlet end of the secondary discharge pipe is fixedly connected to the inlet end of a metering pump, the outlet end of the metering pump is fixedly connected to the inlet end of a material buffer tank, the metering pump is electrically connected to the controller, and a liquid level control device electrically connected to the controller and used to control the opening and closing of the electromagnetic valve is arranged on the upper end of the scrubber, and the liquid level control device is also associated with a liquid level warning device used in conjunction with the controller;

[0004] The liquid level control device includes a vertical cylinder fixedly connected to the upper end of the washer, the vertical cylinder is coaxially connected to a trigger rod in a vertical sliding manner, the lower end of the trigger rod is coaxially fixedly installed with an empty plastic ball, the trigger rod is coaxially fixedly connected to a mounting plate abutting the bottom of the vertical cylinder, the outer edge of the mounting plate is clamped with a sealing plug abutting the inner wall of the vertical cylinder, the inner wall of the vertical cylinder is coated with grease, the upper end of the trigger rod is fixedly connected to a first metal sheet, the upper end of the washer is fixedly connected to a left bracket, and the left bracket is fixedly connected to a first metal sensor corresponding to the first metal sheet and electrically connected to the controller.

[0005] Preferably, the liquid level warning device includes a warning light fixedly connected to the upper end of the washer, the warning light is electrically connected to the controller, the outer edge of the trigger rod is fixedly connected to a connecting rod, the connecting rod is fixedly connected to a second metal sheet, the upper end of the washer is fixedly connected to a right bracket, the right bracket is fixedly connected to a second metal sensor corresponding to the second metal sheet and electrically connected to the controller.

[0006] Preferably, a guide key is fixedly connected to the inner wall of the vertical cylinder, and a guide groove which vertically slides with the guide key is provided on the outer edge of the trigger rod.

[0007] Preferably, a main discharge pipe is fixedly connected to the bottom of the scrubber, and a main discharge valve is installed on the main discharge pipe.

[0008] The beneficial effects of the utility model are:

[0009] 1. When the utility model is in use, the liquid level warning device and the liquid level control are used together to monitor and control the liquid level of the scrubber, thereby ensuring the normal production of large-particle urea. The utility model has a simple structure, is easy to use, and has strong practicality.

[0010] 2. When the present application is in use, when the liquid level in the scrubber reaches the set first warning level, the hollow ball will float up with the liquid level and drive the trigger rod to move up along the axis of the vertical cylinder, and then the second metal sheet will contact the second metal sensor accordingly, thereby triggering the second metal sensor. The second metal sensor transmits this information to the controller, and the controller controls the warning light to flash as a warning, reminding the operator that the liquid level has reached a certain level and it is necessary to start preparing to lower the liquid level in the scrubber to avoid increasing the replacement of the enhancer and producing too much intermediate product.

[0011] 3. Afterwards, as the liquid level in the scrubber continues to rise and reaches the second warning level, the trigger rod floats up with the liquid level under the action of the hollow ball, so that the first metal sheet on the trigger rod contacts the first metal sensor, thereby triggering the first metal sensor. The first metal sensor receives this information and transmits it to the controller. The controller controls the solenoid valve to open and start the metering pump. After controlling the metering pump to work for a set time, the metering pump and the solenoid valve are closed, thereby discharging the solution in the scrubber into the material buffer pipe, thereby lowering the liquid level in the scrubber in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a full cutaway front view of the utility model.

[0013] Figure 2 It is an enlarged view of area A in the full-section main view of the utility model.

[0014] Figure 3 This is a partial three-dimensional cross-sectional view of the utility model from the first viewing angle.

[0015] Figure 4 It is an enlarged view of area B in the partial stereoscopic cross-sectional view from the first viewing angle of the utility model.

[0016] Figure 5 This is a stereoscopic view from a second viewing angle of the present invention.

[0017] Reference numerals

[0018] 1. Scrubber, 2. Controller, 3. Feed pipe, 4. Auxiliary discharge pipe, 5. Solenoid valve, 6. Metering pump, 7. Material buffer tank, 8. Vertical cylinder, 9. Trigger rod, 10. Hollow ball, 11. Mounting plate, 12. Sealing plug, 13. Grease, 14. First metal sheet, 15. Left bracket, 16. First metal sensor, 17. Warning light, 18. Connecting rod, 19. Second metal sheet, 20. Right bracket, 21. Second metal sensor, 22. Guide key, 23. Guide groove, 24. Main discharge pipe, 25. Main discharge valve. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-5 The specific implementation methods of the utility model are further described in detail.

[0020] Embodiment 1, the technical solution is that when the utility model is in use, the liquid level warning device and the liquid level control are used together to monitor and control the liquid level of the scrubber 1, thereby ensuring the normal production of large-particle urea. The present application has a simple structure, is easy to use, and has strong practicality.

[0021] When the present application is in use, when the liquid level in the scrubber 1 reaches the set first warning level, the hollow ball 10 will float up with the liquid level and drive the trigger rod 9 to move up along the axis of the vertical tube 8, and then the second metal sheet 19 will contact the second metal sensor 21 accordingly, thereby triggering the second metal sensor 21, and the second metal sensor 21 transmits this information to the controller 2. The controller 2 controls the warning light 17 to flash as a warning, reminding the operator that the liquid level has reached a certain level at this time, and it is necessary to start preparing to lower the liquid level in the scrubber 1 to avoid increasing the replacement of the enhancer and producing too much intermediate product. Afterwards, as the liquid level in the scrubber 1 continues to rise and reaches the second warning level, the trigger rod 9 floats up with the liquid level under the action of the hollow ball 10, so that the first metal sheet 14 on the trigger rod 9 contacts the first metal sensor 16, thereby triggering the first metal sensor 16. The first metal sensor 16 receives this information and transmits it to the controller 2. The controller 2 controls the solenoid valve 5 to open and start the metering pump 6. After controlling the metering pump 6 to work for a set time, the metering pump 6 and the solenoid valve 5 are closed, thereby discharging the solution in the scrubber 1 into the material buffer pipe, thereby timely lowering the liquid level in the scrubber 1.

[0022] Embodiment 2, based on embodiment 1, specifically, when the present application is in use, a feed pipe 3 and a main discharge pipe 24 are provided on the scrubber 1 to facilitate the circulation and processing of materials, and the main discharge valve 25 is opened to discharge the scrubber 1. During the operation of the scrubber 1, in order to control the liquid level, a secondary discharge pipe 4, a liquid level warning device and a liquid level control device are provided.

[0023] During operation of the scrubber 1 , the liquid level therein will gradually rise as the scrubbing operation proceeds, and the rising liquid level will gradually act on the hollow balls 10 . The hollow balls 10 should be made of a material that is easy to float and corrosion-resistant. The hollow ball 10 in the scrubber 1 floats up as the liquid level rises, thereby driving the trigger rod 9 to move up along the vertical tube 8. During the upward movement, the mounting plate 11 and the sealing plug 12 will also move up along the inner wall of the vertical tube 8. The sealing plug 12 ensures the sealing of the device to avoid leakage of odor and the like. Grease 13 is also arranged on the inner wall of the vertical tube 8 to facilitate the movement of the sealing plug 12. As the trigger rod 9 moves up with the floating of the hollow ball 10, the second metal sheet 19 on the connecting rod 18 also moves up and contacts with the second metal sensor 21 on the right bracket 20, thereby triggering the second metal sensor 21. The second metal sensor 21 transmits this information to the controller 2. The controller 2 controls the warning light 17 to flash as a warning, reminding the operator that the liquid level has reached the first warning level at this time, and it is necessary to start preparing to lower the liquid level in the scrubber 1 to avoid increasing the replacement of the synergist and producing too much intermediate product.

[0024] After that, as the liquid level in the scrubber 1 continues to rise and reaches the second warning level, the trigger rod 9 floats up with the liquid level under the action of the hollow ball 10, so that the first metal sheet 14 on the trigger rod 9 contacts the first metal sensor 16 on the left bracket 15, thereby triggering the first metal sensor 16. The first metal sensor 16 receives this information and transmits it to the controller 2. The controller 2 controls the solenoid valve 5 to open and start the metering pump 6. After the metering pump 6 works for a set time, the metering pump 6 and the solenoid valve 5 are closed, thereby discharging the solution in the scrubber 1 through the auxiliary discharge pipe 4 into the material buffer tank 7, and timely lowering the liquid level in the scrubber 1. A corresponding discharge device is provided at the bottom of the material buffer tank 7 to facilitate the use of the material buffer tank 7.

[0025] Embodiment 3, on the basis of embodiment 2, a guide key 22 is fixedly connected to the inner wall of the vertical tube 8, and a guide groove 23 is provided on the outer edge of the trigger rod 9 for vertical sliding cooperation with the guide key 22, which limits the trigger rod 9 to only move vertically to ensure the correspondence between the second metal sheet 19 and the second sensor.

Claims

1. A large granular urea production device, comprising a scrubber (1), wherein a controller (2) is fixedly connected to the upper end of the scrubber (1), characterized in that: The upper end of the scrubber (1) is fixedly connected to a feed pipe (3), the bottom of the scrubber (1) is fixedly connected to the inlet end of a secondary discharge pipe (4), the secondary discharge pipe (4) is mounted with a solenoid valve (5) electrically connected to the controller (2), the outlet end of the secondary discharge pipe (4) is fixedly connected to the inlet end of a metering pump (6), the outlet end of the metering pump (6) is fixedly connected to the inlet end of a material buffer tank (7), the metering pump (6) is electrically connected to the controller (2), the upper end of the scrubber (1) is arranged with a liquid level control device electrically connected to the controller (2) and used to control the opening and closing of the solenoid valve (5), the liquid level control device is also associated with a liquid level warning device used in conjunction with the controller (2); The liquid level control device comprises a vertical cylinder (8) fixedly connected to the upper end of the washer (1); the vertical cylinder (8) is coaxially connected to a trigger rod (9) in a vertical sliding manner; a hollow ball (10) is coaxially fixedly installed at the lower end of the trigger rod (9); the trigger rod (9) is coaxially connected to a mounting plate (11) abutting against the bottom of the vertical cylinder (8); a sealing plug (12) abutting against the inner wall of the vertical cylinder (8) is clamped on the outer edge of the mounting plate (11); the inner wall of the vertical cylinder (8) is coated with grease (13); the upper end of the trigger rod (9) is fixedly connected to a first metal sheet (14); the upper end of the washer (1) is fixedly connected to a left bracket (15); the left bracket (15) is fixedly connected to a first metal sensor (16) corresponding to the first metal sheet (14) and electrically connected to the controller (2).

2. A large granular urea production device according to claim 1, characterized in that: The liquid level warning device comprises a warning light (17) fixedly connected to the upper end of the washer (1), the warning light (17) being electrically connected to the controller (2), a connecting rod (18) being fixedly connected to the outer edge of the trigger rod (9), the connecting rod (18) being fixedly connected to a second metal sheet (19), the upper end of the washer (1) being fixedly connected to a right bracket (20), the right bracket (20) being fixedly connected to a second metal sensor (21) corresponding to the second metal sheet (19) and electrically connected to the controller (2).

3. A large granular urea production device according to claim 1, characterized in that: A guide key (22) is fixedly connected to the inner wall of the vertical cylinder (8), and a guide groove (23) is provided on the outer edge of the trigger rod (9) for vertical sliding engagement with the guide key (22).

4. The large granular urea production device according to claim 1, characterized in that: The bottom of the scrubber (1) is fixedly connected to a main discharge pipe (24), and a main discharge valve (25) is installed on the main discharge pipe (24).

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