Feeding machine for producing adblue

Abstract

The utility model discloses a feeding machine for producing adblue, which comprises a feeding machine, the feeding machine comprises a screw conveyer, a screening box is arranged on the screw conveyer, a control valve and a feeding pipe are arranged on the screening box, a screening plate is arranged on the screening box, a moving device and a moving rod are arranged on the screening box in a sliding manner, and a double-shaft motor is arranged on the moving rod. Rotating shafts are arranged at the two ends of the double-shaft motor, material stirring plates are arranged in the circumferential direction of the rotating shafts, urea particles are screened conveniently through the screening plates on the screening box, the moving device is arranged to drive the moving rod to move in a reciprocating mode, the rotating shafts and the material stirring plates are driven by the double-shaft motor to rotate, caked urea particles are scattered conveniently, and the screening efficiency is improved. Urea particles are prevented from being hardened to block the screw conveyor, the conveying efficiency is improved, and the frequency of shutdown maintenance is reduced.

Description

Technical Field

[0001] This utility model relates to the field of urea production technology, and more specifically, to a feeder for automotive urea production. Background Technology

[0002] As the core raw material for diesel vehicle exhaust treatment fluid, automotive urea requires precise mixing of high-purity urea granules with deionized water during its production process. The nitrogen-protected screw feeder is an innovative structure designed to solve the problems of moisture absorption, clumping, adhesion, and blockage of automotive urea granules during transportation. Its core lies in the synergistic effect of inert gas environment control, anti-stick coating technology, and dynamic monitoring system to achieve stable transportation of highly humidity-sensitive materials.

[0003] In existing technologies, urea granules are highly hygroscopic, and traditional screw conveyors are prone to bridging and blockage during the conveying process, leading to production line shutdowns. At the same time, existing screw conveyors do not make it easy to adjust the flow rate of nitrogen when it is injected. Low-speed nitrogen injection cannot effectively suppress urea's moisture absorption, while high-speed injection causes airflow disturbance, leading to material fluidization, which raises the risk of bridging. Furthermore, it is easy to carry particles that impact the screw conveyor, causing wear and tear on the screw conveyor. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a feeding machine for automotive urea production to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a feeding machine for automotive urea production, comprising a feeding machine, the feeding machine including a screw conveyor, a screening box on the screw conveyor, a control valve and a feeding pipe on the screening box, a screening plate on the screening box, a moving device and a moving rod slidably mounted on the screening box, a dual-shaft motor on the moving rod, rotating shafts at both ends of the dual-shaft motor, a material-pulling plate circumferentially mounted on the rotating shaft, an air inlet pipe on the screw conveyor, a flow rate regulating device on the air inlet pipe, the flow rate regulating device including an regulating block, the regulating block being inclined and circumferentially mounted inside the air inlet pipe, an regulating plate slidably mounted inside the air inlet pipe, and an regulating groove for cooperating with the regulating block on the regulating plate.

[0008] The present invention is further configured such that the moving device includes a moving plate, a moving half gear is symmetrically rotatably provided on the moving plate, and a moving rack that cooperates with the moving half gear is fixedly provided at one end of the moving rod. Through the cooperation of the moving half gear and the moving rack, the moving rod is driven to reciprocate.

[0009] The present invention is further configured such that a moving gear is coaxially provided on the two moving half gears, a transmission gear is meshed between the two moving gears, and a transmission motor is provided at one end of the transmission gear to facilitate driving the moving half gears to rotate synchronously.

[0010] The present invention is further provided with guide blocks fixed on both sides of the screening box to facilitate the guidance of urea in the screening box.

[0011] The present invention is further configured such that sliding grooves are provided on both sides of the air intake pipe, and sliding blocks that cooperate with the sliding grooves are provided on the adjustment plate to restrict the movement direction and position of the adjustment plate.

[0012] The present invention is further configured such that an adjusting sleeve is provided on the air intake pipe, an adjusting thread is provided inside the adjusting sleeve, and an adjusting head is provided on the sliding block to cooperate with the adjusting thread. The sliding block is moved by the cooperation of the adjusting thread and the adjusting head.

[0013] The present invention is further provided with fixing rings on both sides of the adjusting sleeve to limit the position of the adjusting sleeve.

[0014] The present invention is further configured such that a nitrogen generator and a gas storage tank are provided on one side of the air inlet pipe to facilitate the introduction of nitrogen gas.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a feeding machine for automotive urea production, which has the following beneficial effects:

[0017] 1. The screening plate on the screening box facilitates the screening of urea granules. The moving device drives the moving rod to move back and forth, and the dual-shaft motor drives the rotating shaft and the material feeding plate to rotate, which facilitates the breaking up of clumps of urea granules, prevents urea granules from caking and clogging the screw conveyor, improves the conveying efficiency, and reduces the frequency of downtime maintenance.

[0018] 2. By installing a nitrogen generator, a gas storage tank, and an air inlet pipe, it is easy to blow dry nitrogen into the screw conveyor to replace the air inside the screw conveyor. This prevents the urea from clumping due to the humid air inside the screw conveyor, which would affect the conveying effect of the screw conveyor and reduce the maintenance frequency.

[0019] 3. By adjusting the screw and the adjusting head, the adjusting sleeve drives the adjusting plate to move. The adjusting plate, through the cooperation of the adjusting block and the adjusting groove, adjusts the gas flow area, thereby adjusting the flow rate of nitrogen. By adjusting the gas flow rate, the wear of the screw conveyor is reduced and the stability of the conveying is improved. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a feeding machine for automotive urea production according to the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the screening box in this utility model;

[0022] Figure 3 This is a schematic diagram of the overall structure of the mobile device in this utility model;

[0023] Figure 4 This is a schematic diagram of the overall structure of the flow rate regulating device in this utility model;

[0024] Figure 5 This is a cross-sectional view of the flow rate regulating device in this utility model.

[0025] In the diagram: 1. Feeder; 2. Screw conveyor; 3. Screening box; 4. Control valve; 5. Feed pipe; 6. Screening plate; 7. Moving rod; 8. Dual-shaft motor; 9. Rotating shaft; 10. Feeding plate; 11. Air inlet pipe; 12. Adjusting block; 13. Adjusting plate; 14. Adjusting groove; 15. Moving plate; 16. Moving half gear; 17. Moving rack; 18. Moving gear; 19. Transmission gear; 20. Transmission motor; 21. Guide block; 22. Sliding groove; 23. Sliding block; 24. Adjusting sleeve; 25. Adjusting thread; 26. Adjusting head; 27. Fixing ring; 28. Nitrogen generator; 29. ​​Gas storage tank. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figure 1-5A feeding machine for automotive urea production includes a feeding machine 1, which includes a screw conveyor 2. A screening box 3 is mounted on the screw conveyor 2. The screening box 3 is equipped with a control valve 4 and a feed pipe 5. A screening plate 6 is mounted on the screening box 3. A moving device and a moving rod 7 are slidably mounted on the screening box 3. A dual-shaft motor 8 is mounted on the moving rod 7. Rotating shafts 9 are located at both ends of the dual-shaft motor 8. A material-pulling plate 10 is circumferentially mounted on the rotating shafts 9. An air inlet pipe 11 is mounted on the screw conveyor 2. A flow rate regulating device is mounted on the air inlet pipe 11, and the flow rate regulating device includes an regulating block 12. An adjusting block 12 is inclined and circumferentially positioned inside the air inlet pipe 11. An adjusting plate 13 is slidably mounted inside the air inlet pipe 11. An adjusting groove 14 that engages with the adjusting block 12 is provided on the adjusting plate 13. The moving device includes a moving plate 15, on which a moving half gear 16 is symmetrically rotatably mounted. A moving rack 17 that engages with the moving half gear 16 is fixedly mounted at one end of the moving rod 7. Moving gears 18 are coaxially mounted on the two moving half gears 16. A transmission gear 19 meshes between the two moving gears 18. A transmission motor 20 is mounted at one end of the transmission gear 19. Guide blocks 21 are fixedly mounted on both sides of the screening box 3. A nitrogen generator 28 and a gas storage tank 29 are mounted on one side of the air inlet pipe 11.

[0030] In this embodiment, before the feeder 1 starts feeding, the nitrogen generator 28 is turned on and nitrogen is stored in the gas storage tank 29. The gas storage tank 29 is equipped with a pressure regulating valve, flow meter, and other structures. The nitrogen is transported to the screw conveyor 2 through the inlet pipe 11 to replace the air in the hopper. The screw conveyor 2 is equipped with an oxygen content detector and a humidity detector to detect the oxygen content and humidity in the hopper. When the oxygen content is less than 0.5% and the humidity drops to 5%, the feed pipe 5 is controlled by the control valve 4 to feed the nitrogen, which is then screened by the screening plate 6. The drive motor 20 is then started, and the drive motor 20 drives... The transmission gear 19 rotates, driving the moving gear 18 to rotate synchronously in opposite directions. The moving gear 18 drives the moving half gear 16 to rotate. The moving half gear 16, in turn, moves the moving rack 17 and the moving rod 7 to move back and forth. At the same time, the dual-shaft motor 8 is started, driving the rotating shaft 9 and the material feeding plate 10 to rotate. In conjunction with the guide block 21, the urea is turned over and agitated to break up clumps. The movement of the moving rod 7 improves the agitation effect of the material feeding plate 10 and increases the screening efficiency of the screening plate 6. The screened urea is then fed through the screw conveyor 2.

[0031] Please see Figures 4-5As one embodiment of the flow rate regulating device: Sliding grooves 22 are provided on both sides of the air intake pipe 11, and a sliding block 23 that cooperates with the sliding grooves 22 is provided on the regulating plate 13. An regulating sleeve 24 is provided on the air intake pipe 11, and an regulating thread 25 is provided inside the regulating sleeve 24. An regulating head 26 that cooperates with the regulating thread 25 is provided on the sliding block 23, and fixing rings 27 are fixedly provided on both sides of the regulating sleeve 24.

[0032] More specifically, by rotating the adjusting sleeve 24 between the fixed rings 27, the sliding block 23 is moved within the sliding groove 22 through the cooperation of the adjusting thread 25 and the adjusting head 26. The sliding block 23 drives the adjusting plate 13 to move. The cooperation of the adjusting plate 13 and the adjusting groove 14 adjusts the cross-sectional area of ​​the gas flow in the air inlet pipe 11, adjusts the gas flow rate, prevents the gas from carrying particles that impact the screw conveyor 2, reduces the wear of the screw conveyor 2, and improves the conveying stability of the screw conveyor 2.

[0033] In summary, during the use or operation of the overall equipment: before the feeder 1 begins feeding, the nitrogen generator 28 is turned on and nitrogen is stored in the gas storage tank 29. The gas storage tank 29 is equipped with a pressure regulating valve, flow meter, and other structures. Nitrogen is then transported through the inlet pipe 11 to the screw conveyor 2 to replace the air in the hopper. The screw conveyor 2 is equipped with an oxygen content detector and a humidity detector to monitor the oxygen content and humidity in the hopper. When the oxygen content is less than 0.5% and the humidity drops to 5%, the feed pipe 5 is controlled by the control valve 4 to begin feeding, and the material is screened through the screening plate 6. The drive motor 20 is then started. Machine 20 drives transmission gear 19 to rotate, transmission gear 19 drives moving gear 18 to rotate synchronously in opposite directions, moving gear 18 drives moving half gear 16 to rotate, and moving half gear 16 drives moving rack 17 to move back and forth through the movement of moving rack 17 and moving rod 7 respectively. At the same time, dual-shaft motor 8 is started, dual-shaft motor 8 drives rotating shaft 9 and material feeding plate 10 to rotate, and guide block 21 to stir and break up clumps of urea. The movement of moving rod 7 improves the breaking effect of material feeding plate 10 and improves the screening efficiency of screening plate 6. The screened urea is fed through screw conveyor 2.

[0034] Rotating the adjusting sleeve 24 between the fixed rings 27, the sliding block 23 moves within the sliding groove 22 through the cooperation of the adjusting thread 25 and the adjusting head 26. The sliding block 23 drives the adjusting plate 13 to move. The cooperation of the adjusting plate 13 and the adjusting groove 14 adjusts the cross-sectional area of ​​the gas flow in the air inlet pipe 11, adjusts the gas flow rate, prevents the gas from carrying particles that impact the screw conveyor 2, reduces the wear of the screw conveyor 2, and improves the conveying stability of the screw conveyor 2.

[0035] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A feeding machine for producing vehicle urea, comprising a feeding machine (1), characterized in that: The feeding machine (1) comprises a screw conveyor (2), a screening box (3) is arranged on the screw conveyor (2), a control valve (4) and a feeding pipe (5) are arranged on the screening box (3), a screening plate (6) is arranged on the screening box (3), a moving device and a moving rod (7) are slidably arranged on the screening box (3), a double-shaft motor (8) is arranged on the moving rod (7), rotating shafts (9) are arranged at two ends of the double-shaft motor (8), a poking plate (10) is arranged in the circumferential direction of the rotating shaft (9), an air inlet pipe (11) is arranged on the screw conveyor (2), a flow rate adjusting device is arranged on the air inlet pipe (11), the flow rate adjusting device comprises an adjusting block (12), the adjusting block (12) is arranged in an inclined manner and in the circumferential direction of the air inlet pipe (11), an adjusting plate (13) is slidably arranged in the air inlet pipe (11), and an adjusting groove (14) matched with the adjusting block (12) is arranged on the adjusting plate (13).

2. The feeding machine for producing urea for vehicles according to claim 1, characterized in that: The moving device comprises a moving plate (15), moving half gears (16) are symmetrically arranged on the moving plate (15), and a moving rack (17) matched with the moving half gears (16) is fixedly arranged at one end of the moving rod (7).

3. The feed machine for producing urea for vehicles according to claim 2, characterized in that: Moving gears (18) are coaxially arranged on the two moving half gears (16), and a transmission gear (19) is arranged in meshing between the two moving gears (18); and one end of the transmission gear (19) is provided with a transmission motor (20).

4. The feeding machine for producing urea for vehicles according to claim 1, characterized in that: Guide blocks (21) are fixedly arranged on both sides of the screening box (3).

5. The feed machine for producing urea for vehicles according to claim 1, characterized in that: Sliding grooves (22) are arranged on both sides of the air inlet pipe (11), and sliding blocks (23) matched with the sliding grooves (22) are arranged on the adjusting plate (13).

6. The feed machine for producing urea for vehicles according to claim 5, characterized in that: An adjusting sleeve (24) is arranged on the air inlet pipe (11), the adjusting sleeve (24) is internally provided with an adjusting thread (25), and an adjusting head (26) matched with the adjusting thread (25) is arranged on the sliding block (23).

7. The feed machine for producing urea for vehicles according to claim 6, characterized in that: Fixed rings (27) are fixedly arranged on both sides of the adjusting sleeve (24).

8. The feed machine for producing urea for vehicles according to claim 1, characterized in that: A nitrogen making machine (28) and a gas storage tank (29) are arranged on one side of the air inlet pipe (11).

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