Dust recovery mechanism of chemical fertilizer granulator

Abstract

The utility model discloses a dust recovery mechanism of a chemical fertilizer granulator, which relates to the technical field of chemical fertilizer granulation, and comprises a recovery box body provided with an air inlet end and an air outlet end, the recovery mechanism further comprises a rotating sleeve rotationally arranged on the outer side of the recovery box body, and the outer surface of the rotating sleeve is provided with a plurality of vent grooves corresponding to the air outlet end; the dust filtering assembly is detachably arranged in the vent groove and used for filtering dust, and the gas outlet end and the vent groove form a gas conveying channel for conveying waste gas into the dust filtering assembly. The rotating sleeve is arranged outside the recycling box body, the vent groove is formed outside the rotating sleeve, the dust filtering assembly is arranged in the vent groove, and the rotating sleeve can be driven by the driving assembly to rotate around the recycling box body, so that the air outlet end of the recycling box body is aligned with the vent groove, switching is completed, the time for replacing the dust filtering assembly can be effectively shortened, and the dust filtering efficiency is improved. And when the dust in the dust filtering assembly is taken out, the recovery mechanism can still be normally used.

Description

Technical Field

[0001] The utility model relates to the technical field of fertilizer granulation, in particular to a dust recovery mechanism of a fertilizer granulator. Background Art

[0002] The fertilizer high tower granulation device will emit a large amount of waste gas during the processing and use, and the waste gas has a high temperature and contains a certain amount of fertilizer particles. The existing fertilizer high tower granulation technology has a heat exchange device to recover heat, but most of them do not recover the fertilizer dust in the fertilizer high tower granulation waste gas, resulting in a high loss of dust fertilizer particles in the waste gas of the device.

[0003] The Chinese utility model patent with authorization announcement number CN220288352U discloses a device for recovering heat and fertilizer dust from waste gas from fertilizer high-tower granulation, comprising a recovery box body provided with a smoke inlet connecting pipe, wherein the upper inner wall of the recovery box body is connected to a heat exchange tank, a movable ring is slidably provided between the recovery box body and the heat exchange tank, a cleaning ring is connected to the lower side of the movable ring, the inner wall of the cleaning ring is in contact with the outer wall of the heat exchange tank, the cleaning ring is driven by a driving structure composed of a motor, a threaded shaft, a moving block, a connecting frame and a sliding rod, and a sealing plate is installed on the outer wall of one side of the recovery box body and at the outside of the cleaning port. The working principle of the device is as follows: the moving ring is driven up and down by the motor, the threaded shaft, the moving block, the connecting frame and the sliding rod, and the fertilizer dust between the inner wall of the recovery box body and the outer wall of the heat exchange tank is cleaned downward by the cleaning ring, collected to the bottom of the recovery box body, and the dust is collected through the cleaning port.

[0004] However, the applicant has found that when the device collects the dust inside the recovery box, it is necessary to first close the smoke inlet connecting pipe, suspend the recovery device, open the sealing plate, and use a cleaning tool to clean the fertilizer dust out of the cleaning port, that is, the device needs to be stopped when removing the dust. Therefore, it is necessary to set up multiple recovery devices to ensure that when one of them is suspended, the others continue to work, which undoubtedly increases the production cost of fertilizers. Therefore, it is necessary to design a structure that can shorten the pause time to remove dust. Utility Model Content

[0005] The utility model aims to provide a dust recovery mechanism for a fertilizer granulator to solve the technical problem that the dust recovery mechanism of the fertilizer granulator on the market currently needs to be shut down for a long time when removing dust, as mentioned in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a dust recovery mechanism of a fertilizer granulator, comprising a recovery box provided with an air inlet end and an air outlet end, and the recovery mechanism also includes:

[0007] Rotating a rotating sleeve disposed outside the recovery box, wherein the outer surface of the rotating sleeve is provided with a plurality of ventilation grooves corresponding to the air outlet end;

[0008] A dust filter assembly is detachably arranged in the ventilation groove for filtering dust, and the air outlet and the ventilation groove form an air delivery channel for delivering exhaust gas into the dust filter assembly, the air delivery channel is connected when the air outlet is aligned with the ventilation groove, and the air delivery channel is closed when the air outlet is completely offset from the ventilation groove;

[0009] The driving assembly is used to drive the rotating sleeve to rotate around the central axis of the recovery box, thereby controlling the connection or closure of the air transmission channel to switch any one of the dust filter assemblies.

[0010] As a preferred technical solution of the utility model, the recovery mechanism also includes:

[0011] A hot water exchange tank disposed in the recovery tank;

[0012] The water inlet and the water outlet are connected with the heat exchange water tank and penetrate through the side wall of the recovery box body.

[0013] As a preferred technical solution of the present utility model, an extension pipe is provided outside the rotating sleeve and in the extension direction of the ventilation groove, and the dust filter assembly is arranged in the extension pipe.

[0014] As a preferred technical solution of the utility model, the dust filter assembly includes:

[0015] An ash collecting box with an opening at one end, the ash collecting box is arranged in the extension tube;

[0016] A dust filter is arranged at the other end of the dust collecting box.

[0017] As a preferred technical solution of the utility model, the recovery mechanism also includes a mounting structure for limiting the position of the ash collection box, and the mounting structure includes:

[0018] a fixing block disposed at the end of the extension tube;

[0019] A connecting shaft connected to the fixing block;

[0020] A hanging plate rotatably connected to the connecting shaft.

[0021] As a preferred technical solution of the present utility model, a handle is provided at one end of the ash collecting box away from the air outlet end.

[0022] As a preferred technical solution of the utility model, the driving assembly includes:

[0023] A motor disposed at the top of the recovery box;

[0024] A first bevel gear connected to the output shaft of the motor;

[0025] A second bevel gear is arranged on the top end of the rotating sleeve, and the second bevel gear is meshed with the first bevel gear.

[0026] Compared with the prior art, the beneficial effects of the utility model are:

[0027] The utility model arranges a rotating sleeve on the outside of the recovery box, and opens a ventilation groove on the outside of the rotating sleeve, in which a dust filter assembly is arranged, and can drive the rotating sleeve to rotate around the recovery box through a driving assembly, so that the air outlet end of the recovery box is aligned with the ventilation groove, and the switching is completed, which can effectively shorten the time for replacing the dust filter assembly. When the dust inside the dust filter assembly is taken out, the recovery mechanism can still be used normally, thereby improving the production efficiency of fertilizers. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of a partially cutaway three-dimensional structure of the utility model;

[0029] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0030] Figure 3 It is a schematic diagram of the half-section structure of the recovery box, the hot water exchange tank and the rotating sleeve of the utility model;

[0031] Figure 4 It is a schematic diagram of the three-dimensional structure of the rotating sleeve and the extension tube of the utility model.

[0032] In the figure: 1. Recovery box; 2. Air inlet; 3. Air outlet; 4. Heat exchange water tank; 5. Water inlet; 6. Water outlet; 7. Rotating sleeve; 701, ventilation groove; 8. Extension pipe; 9. Ash box; 10. Dust filter; 11. Handle; 12. Fixing block; 13. Connecting shaft; 14. Hanging plate; 15. Motor; 16. Bevel gear No. 1; 17. Bevel gear No. 2. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0034] See also Figure 1-Figure 4 The utility model provides a technical solution: a dust recovery mechanism of a fertilizer granulator, comprising a recovery box 1 provided with an air inlet 2 and an air outlet 3. In this embodiment, two air outlets 3 are provided and symmetrically distributed. The recovery mechanism also includes: a water exchange tank 4 arranged in the recovery box 1; a water inlet 5 and a water outlet 6 connected to the water exchange tank 4 and penetrating the side wall of the recovery box 1;

[0035] The above technical solution can be used to achieve heat energy recovery. The air inlet end 2 of the recovery box 1 is connected to the exhaust gas outlet of the fertilizer high tower granulator. The valve of the exhaust gas outlet is opened, and the high-temperature exhaust gas enters the recovery box 1 through the air inlet end 2. The temperature of the exhaust gas is absorbed by the water exchange tank 4. The water inlet end 5 and the water outlet end 6 are used to realize the circulation of cold and hot water inside the water exchange tank 4. Cold water enters from the water inlet end 5, and the heated hot water is discharged through the water outlet end 6, thereby realizing the recovery and utilization of heat energy.

[0036] like Figure 1 and Figure 3 As shown, a dust recovery mechanism of a fertilizer granulator also includes: a rotating sleeve 7 rotatably arranged outside the recovery box 1, and the inner wall of the rotating sleeve 7 is in contact with the outer wall of the recovery box 1, and the outer surface of the rotating sleeve 7 is provided with a plurality of ventilation grooves 701 matching the air outlet end 3, and the air outlet end 3 and the ventilation grooves 701 form an air delivery channel for delivering the exhaust gas into the dust filter component, and the air delivery channel is connected when the air outlet end 3 is aligned with the ventilation grooves 701, and the air delivery channel is closed when the air outlet end 3 and the ventilation grooves 701 are completely offset; in this embodiment, an extension pipe 8 is provided on the outside of the rotating sleeve 7 and in the extension direction of the ventilation grooves 701, and the dust filter component is arranged in the extension pipe 8;

[0037] The above-mentioned technical solution can be used to quickly switch the dust filter assembly. The exhaust gas enters the ventilation groove 701 of the rotating sleeve 7 through the air outlet 3. The dust filter assembly filters the dust in the exhaust gas. The dust cannot pass through the dust filter and is adsorbed on the dust filter surface. Over time, more and more dust accumulates in the dust filter. When it is found that the wind force of the ventilation groove 701 is reduced, it indicates that the dust filter assembly is blocked. At this time, it is necessary to switch to a new dust filter assembly. The rotating sleeve 7 is rotated around the recovery box 1. When it rotates to the next new dust filter 10, it stops rotating to complete the switching. Subsequently, when taking out the dust inside the dust filter assembly, the recovery mechanism still does not affect normal use.

[0038] like Figure 1 and Figure 2 As shown, a dust recovery mechanism of a fertilizer granulator further includes: a dust filter assembly detachably disposed in the ventilation groove 701 for filtering dust; in this embodiment, the dust filter assembly includes: an ash box 9 with an opening at one end, the ash box 9 is disposed in the extension pipe 8; a dust filter 10 disposed at the other end of the ash box 9;

[0039] The above technical solution can be used to recover dust. The exhaust gas enters the ventilation groove 701 of the rotating sleeve 7 through the air outlet 3. The dust filter 10 of the ash box 9 filters the dust in the exhaust gas. The dust cannot pass through the dust filter 10 and is adsorbed on the surface of the dust filter 10. Over time, more and more dust accumulates at the bottom of the ash box 9.

[0040] like Figure 1As shown, a dust recovery mechanism of a fertilizer granulator also includes: a driving component, which is used to drive the rotating sleeve 7 to rotate around the central axis of the recovery box 1, so as to control the connection or closure of the air transmission channel to switch any dust filter component; in this embodiment, the driving component includes: a motor 15 arranged at the top of the recovery box 1; a first bevel gear 16 connected to the output shaft of the motor 15; a second bevel gear 17 arranged at the top of the rotating sleeve 7, and the second bevel gear 17 is meshed with the first bevel gear 16;

[0041] The above technical solution can realize automatic switching of new dust filter 10 and dust box 9, improve efficiency, start motor 15 to drive No. 1 bevel gear 16 to rotate, No. 1 bevel gear 16 drives No. 2 bevel gear 17 to engage, thereby driving rotating sleeve 7 to rotate around recovery box 1, when rotating to the next new dust filter 10, motor 15 stops rotating and self-locks.

[0042] Further, such as Figure 2 As shown, the recovery mechanism also includes a mounting structure for limiting the position of the ash box 9, and the mounting structure includes: a fixing block 12 provided at the end of the extension tube 8; a connecting shaft 13 connected to the fixing block 12; a hanging plate 14 rotatably connected to the connecting shaft 13; a handle 11 is provided at one end of the ash box 9 away from the air outlet end 3;

[0043] The above technical solution can be used to conveniently remove the dust. The hanging plate 14 is rotated to release the limit of the ash box 9 by the hanging plate 14, so that the ash box 9 can be pulled out of the extension tube 8 and the dust in the ash box 9 can be poured out, which is very convenient.

[0044] Working principle: When in use, first connect the air inlet 2 of the recovery box 1 to the exhaust gas outlet of the fertilizer tower granulator, open the valve of the exhaust gas outlet, and the high-temperature exhaust gas enters the recovery box 1 through the air inlet 2. The temperature of the exhaust gas is absorbed by the heat exchange tank 4. The water inlet 5 and the water outlet 6 are used to realize the circulation of hot and cold water inside the heat exchange tank 4. Cold water enters from the water inlet 5, and the heated hot water is discharged through the water outlet 6 to realize the recovery and use of heat energy. The exhaust gas enters the ventilation groove 701 of the rotating sleeve 7 through the air outlet 3. The dust filter 10 of the dust box 9 filters the dust in the exhaust gas. The dust cannot pass through the dust filter 10 and is adsorbed on the dust filter 10. The dust accumulates more and more on the surface over time and accumulates at the bottom of the ash box 9. When it is found that the wind force of the dust filter 10 is reduced, it indicates that the dust filter 10 is blocked. At this time, it is necessary to switch to a new dust filter 10 and recycle the dust in the ash box 9. The starting motor 15 drives the No. 1 bevel gear 16 to rotate, and the No. 1 bevel gear 16 drives the No. 2 bevel gear 17 to engage, thereby driving the rotating sleeve 7 to rotate around the recovery box 1. When it rotates to the next new dust filter 10, the motor 15 stops rotating and self-locks. At this time, the hanging plate 14 is rotated to release the limit of the hanging plate 14 on the ash box 9, so that the ash box 9 can be pulled out of the extension tube 8 and the dust in the ash box 9 can be poured out, which is very convenient.

[0045] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0046] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A dust recovery mechanism for a fertilizer granulator, comprising a recovery box (1) provided with an air inlet (2) and an air outlet (3), characterized in that: The recycling mechanism also includes: Rotating a rotating sleeve (7) disposed outside the recovery box (1), wherein the outer surface of the rotating sleeve (7) is provided with a plurality of ventilation grooves (701) corresponding to the air outlet end (3); A dust filter assembly for filtering dust is detachably arranged in the ventilation groove (701), and the air outlet end (3) and the ventilation groove (701) form an air delivery channel for delivering waste gas to the dust filter assembly; when the air outlet end (3) is aligned with the ventilation groove (701), the air delivery channel is connected; when the air outlet end (3) and the ventilation groove (701) are completely misaligned, the air delivery channel is closed; A driving assembly is used to drive the rotating sleeve (7) to rotate around the central axis of the recovery box (1), thereby controlling the connection or closure of the gas transmission channel to switch any one of the dust filter assemblies.

2. The dust recovery mechanism of the fertilizer granulator according to claim 1, characterized in that: The recycling mechanism also includes: A heat exchange water tank (4) disposed in the recovery tank (1); A water inlet (5) and a water outlet (6) are connected to the water exchange tank (4) and penetrate the side wall of the recovery tank (1).

3. The dust recovery mechanism of the fertilizer granulator according to claim 1 is characterized in that: An extension pipe (8) is provided outside the rotating sleeve (7) and in the extension direction of the ventilation groove (701), and the dust filter assembly is arranged in the extension pipe (8).

4. The dust recovery mechanism of the fertilizer granulator according to claim 3 is characterized in that: The dust filter assembly comprises: An ash collecting box (9) with an opening at one end, wherein the ash collecting box (9) is arranged in the extension tube (8); A dust filter (10) is provided at the other end of the dust collecting box (9).

5. The dust recovery mechanism of the fertilizer granulator according to claim 4, characterized in that: The recovery mechanism also includes a mounting structure for limiting the position of the ash collecting box (9), the mounting structure including: A fixing block (12) provided at the end of the extension tube (8); A connecting shaft (13) connected to the fixing block (12); A hanging plate (14) rotatably connected to the connecting shaft (13).

6. The dust recovery mechanism of the fertilizer granulator according to claim 4 or 5, characterized in that: A handle (11) is provided at one end of the ash collecting box (9) away from the air outlet end (3).

7. The dust recovery mechanism of the fertilizer granulator according to claim 1, characterized in that: The drive assembly comprises: A motor (15) disposed at the top of the recovery box (1); A first bevel gear (16) connected to the output shaft of the motor (15); A second bevel gear (17) is arranged at the top end of the rotating sleeve (7), and the second bevel gear (17) is meshed with the first bevel gear (16).

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