Mixing equipment for urea catalyst

Abstract

The utility model relates to the field of urea catalyst mixing, and discloses urea catalyst mixing equipment which comprises a mixing box, a top cover is arranged at the top of an inner cavity of the mixing box, a threaded column is fixedly installed at the bottom of the top cover, a feeding hopper is arranged at the top of the top cover, and a motor is arranged at the bottom of the mixing box. The output end of the motor drives the lead screw to rotate, the lead screw drives the connecting sleeve and the mixing blade to synchronously rotate up and down in a reciprocating mode in the mixing box when rotating, urea catalyst raw materials in the mixing box are stirred, meanwhile, the mixing blade can drive the scraping rod to rotate in the mixing box when rotating, and the scraping rod makes contact with the inner wall of the mixing box; and when the mixing box rotates, materials adhered to the inner wall of the mixing box can be scraped off, so that urea catalyst raw materials in the mixing box can be stirred in an up-and-down reciprocating omnibearing manner to improve the mixing effect, and unnecessary influence on normal mixing work caused by excessive raw materials adhered to the inner wall of the mixing box can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of urea catalyst mixing, in particular to mixing equipment for urea catalyst. Background Art

[0002] Urea solution is a diesel engine exhaust treatment fluid and is a consumable that must be used in SCR technology. Since the use of automotive urea solution can reduce the exhaust pollutants of diesel vehicles, reducing nitrogen oxides by 25%-28% per vehicle, and achieving the purpose of protecting the environment, the automotive urea solution required by the SCR system has become a consumable equivalent to diesel, and has a good prospect demand. In the production of automotive urea solution, the purified urea and the treated soft water need to be fully mixed and dissolved, so a stirring mechanism is often required to mix and process the raw materials and catalysts.

[0003] However, most of the current urea catalyst mixing equipment usually only stirs the urea catalyst at a single fixed position to mix it when in use, and cannot stir and mix the urea catalyst in an all-round manner by moving up and down, so that the urea catalyst cannot be fully contacted and mixed, and the mixing will not be thorough when the urea catalyst is stirred and mixed. At the same time, it is also impossible to remove and replace the mixing blades that have been corroded or damaged due to long-term use, which will bring unnecessary impact on the normal mixing work. For this reason, we propose a mixing equipment for urea catalyst. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a mixing device for a urea catalyst, which solves the above-mentioned problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mixing device for urea catalyst, comprising a mixing box, a top cover is provided on the top of the inner cavity of the mixing box, a threaded column is fixedly installed on the bottom of the top cover, a feed hopper is provided on the top of the top cover, a motor is provided on the bottom of the mixing box, a screw rod is sleeved on the output end of the motor through a coupling, a connecting sleeve is sleeved on the middle part of the screw rod, slots are provided on the top of the connecting sleeve, plug-in blocks are plugged into the inner cavity of the slots, a plurality of mixing blades are fixedly installed on one side of the plug-in blocks, a square block is fixedly installed on the top of the screw rod, a support plate is fixedly installed on the left side of the mixing box, a water tank is provided on the top of the support plate, a water outlet pipe is sleeved on the left side of the mixing box, a valve body is provided on the top of the water outlet pipe, support legs are fixedly installed on the bottom of the mixing box, a recovery box is provided on the left side of the two support legs, and positioning blocks are provided on both sides of the inner wall of the recovery box.

[0008] Preferably, the top cover is threadably connected to the mixing box at the top of the inner cavity of the mixing box via a threaded column, and a handle is fixedly mounted on the top of the top cover.

[0009] Preferably, the mixing blades are movably connected to the connecting sleeve in the slot via a plug-in block, the mixing blades are grouped into four and four groups are provided in total, and a scraper rod is fixedly mounted on one side of each group of mixing blades.

[0010] Preferably, a discharge pipe is sleeved on the right side of the mixing box, and a valve is provided on the top of the discharge pipe.

[0011] Preferably, the inner cavity of the recovery box is provided with a filter screen, and positioning grooves adapted to the positioning blocks are provided on both sides of the top of the filter screen.

[0012] Preferably, a water inlet groove is provided on the top of the water tank, a water suction pipe is connected to the top of the water tank, a first water pump is installed in the middle of the water suction pipe, a delivery pipe is connected to the bottom of the first water pump, a plurality of nozzles are arranged at equal distances at the bottom of the delivery pipe, and a total of five nozzles are arranged.

[0013] Preferably, a recovery pipe is sleeved between the left side of the recovery box and the left side of the water tank, and a second water pump is sleeved in the middle of the recovery pipe.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a mixing device for urea catalyst, which has the following beneficial effects:

[0016] 1. The urea catalyst mixing equipment drives the screw rod to rotate through the output end of the motor. When the screw rod rotates, it drives the connecting sleeve and the mixing blades to rotate up and down synchronously in the mixing box to stir the urea catalyst raw materials in the mixing box. At the same time, when the mixing blades rotate, the scraper rod can also be driven to rotate in the mixing box. Since the scraper rod is in contact with the inner wall of the mixing box, the material adhering to the inner wall of the mixing box can be scraped off when the scraper rod rotates, so that the urea catalyst raw materials in the mixing box can be stirred up and down in an all-round manner to improve the mixing effect, and the excessive material adhering to the inner wall of the mixing box can be prevented from causing unnecessary influence on the normal mixing work; and the handle is held to drive the top cover to rotate counterclockwise through the threaded column to be removed from the mixing box, and the mixing box is opened, and then each group of plug-in blocks is pulled upward to be taken out from the slot and separated from the connecting sleeve, so that it is convenient for operators to replace the mixing blades and scraper rods that have been corroded for too long.

[0017] 2. The mixing equipment for urea catalyst can filter and separate the impurities contained in the cleaning water in the mixing box when the cleaning water is discharged into the recovery box for collection through the filter, so that the impurities remain on the filter and the water enters the recovery box for collection. After collection, the water recovered in the recovery box can be pumped into the water tank through the recovery pipe connected to the second water pump, so that it is convenient for operators to filter and recycle the cleaning water, thereby preventing the waste of water resources and the increase of the use cost; and the filter is pulled upward to pass through the positioning groove and removed from the two positioning blocks to release the fixation in the recovery box, and taken out from the recovery box, so that it is convenient for operators to clean the impurities filtered on the filter, thereby preventing the unfavorable situation of clogging and failure to filter due to long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the top cover structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the connecting sleeve of the utility model;

[0021] Figure 4 This is a schematic diagram of the water tank structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the recycling box of the utility model.

[0023] In the figure: 1. mixing box; 2. top cover; 3. threaded column; 4. handle; 5. feed hopper; 6. motor; 7. screw rod; 8. connecting sleeve; 9. slot; 10. plug-in block; 11. mixing blade; 12. scraper rod; 13. square block; 14. discharge pipe; 15. valve; 16. support plate; 17. water tank; 18. water inlet trough; 19. water pump; 20. first water pump; 21. delivery pipe; 22. nozzle; 23. water outlet pipe; 24. valve body; 25. recovery box; 26. positioning block; 27. filter screen; 28. positioning slot; 29. ​​recovery pipe; 30. second water pump; 31. support leg DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 A mixing device for urea catalyst comprises a mixing box 1, a top cover 2 is arranged on the top of the inner cavity of the mixing box 1, a threaded column 3 is fixedly installed on the bottom of the top cover 2, a feed hopper 5 is arranged on the top of the top cover 2, a motor 6 is arranged on the bottom of the mixing box 1, a screw rod 7 is sleeved on the output end of the motor 6 through a coupling, a connecting sleeve 8 is sleeved on the middle of the screw rod 7, slots 9 are opened around the top of the connecting sleeve 8, plug-in blocks 10 are plugged into the inner cavity of the slots 9, a plurality of mixing blades 11 are fixedly installed on one side of the plug-in blocks 10, a square block 13 is fixedly installed on the top of the screw rod 7, a support plate 16 is fixedly installed on the left side of the mixing box 1, a water tank 17 is arranged on the top of the support plate 16, a water outlet pipe 23 is sleeved on the left side of the mixing box 1, a valve body 24 is arranged on the top of the water outlet pipe 23, support legs 31 are fixedly installed around the bottom of the mixing box 1, a recovery box 25 is arranged on the left side of the two support legs 31, and positioning blocks 26 are arranged on both sides of the inner wall of the recovery box 25.

[0026] Furthermore, the top cover 2 is threadably connected to the mixing box 1 at the top of the inner cavity of the mixing box 1 through a threaded column 3 , and a handle 4 is fixedly mounted on the top of the top cover 2 .

[0027] Furthermore, the mixing blades 11 are movably connected to the connecting sleeve 8 in the slot 9 through the plug-in block 10. The mixing blades 11 are grouped into four groups and a total of four groups are provided. A scraper rod 12 is fixedly installed on one side of each group of mixing blades 11. Advantages: the output end of the motor 6 drives the screw rod 7 to rotate, and the screw rod 7 drives the connecting sleeve 8 and the mixing blades 11 to rotate synchronously up and down in the mixing box 1 when rotating, so as to stir the urea catalyst raw materials in the mixing box 1. At the same time, when the mixing blades 11 rotate, the scraper rod 12 can also be driven to rotate in the mixing box 1. Since the scraper rod 12 contacts the inner wall of the mixing box 1, the material adhering to the inner wall of the mixing box 1 can be removed when the scraper rod 12 rotates. Scrape it off, so that the urea catalyst raw material in the mixing box 1 can be stirred up and down in an all-round manner to improve the mixing effect, and it can also prevent excessive raw materials from adhering to the inner wall of the mixing box 1 and causing unnecessary influence on the normal mixing work; the square block 13 can ensure the stability of the connecting sleeve 8 to prevent it from rotating out from 7; and hold the handle 4 to drive the top cover 2 to rotate counterclockwise through the threaded column 3 and remove it from the mixing box 1, open the mixing box 1, and then pull each group of plug-in blocks 10 upwards to take them out from the slot 9 and separate them from the connecting sleeve 8, so that the operator can easily replace the mixing blades 11 and scraper rods 12 that have been corroded for too long.

[0028] Furthermore, a discharge pipe 14 is sleeved on the right side of the mixing box 1, and a valve 15 is arranged on the top of the discharge pipe 14. Advantages: the discharge pipe 14 can be closed and opened by rotating the valve 15 clockwise or counterclockwise. When the discharge pipe 14 is closed, it can prevent the urea catalyst raw materials from leaking out when they are not mixed completely in the mixing box 1. When it is opened, it is convenient for the operator to discharge the mixed urea catalyst from the mixing box 1 for use.

[0029] Furthermore, a water inlet trough 18 is provided at the top of the water tank 17, a water suction pipe 19 is sleeved on the top of the water tank 17, a first water pump 20 is sleeved in the middle of the water suction pipe 19, a delivery pipe 21 is sleeved on the bottom of the first water pump 20, a plurality of nozzles 22 are equidistantly arranged at the bottom of the delivery pipe 21, and a total of five nozzles 22 are provided. Advantages: clean water is filled into the water tank 17 through the water inlet trough 18, and then the water in the water tank 17 is pumped into the delivery pipe 21 through the water suction pipe 19 connected to the first water pump 20, and after entering the delivery pipe 21, the water is sprayed into the mixing box 1 through the five nozzles 22, so that the operator can clean the mixing box 1, the mixing blades 11 and the scraper rod 12 conveniently after the use of the mixing box 1 is completed, without the need for manual cleaning by the operator, which brings convenience.

[0030] Furthermore, a recovery pipe 29 is sleeved between the left side of the recovery box 25 and the left side of the water tank 17 , and a second water pump 30 is sleeved in the middle of the recovery pipe 29 .

[0031] Furthermore, the inner cavity of the recovery box 25 is provided with a filter screen 27, and positioning grooves 28 adapted to the positioning blocks 26 are provided on both sides of the top of the filter screen 27. Advantages: the filter screen 27 can filter and separate the impurities contained in the cleaning water in the mixing box 1 when it is discharged into the recovery box 25 for collection, so that the impurities remain on the filter screen 27 and the water enters the recovery box 25 for collection. After collection, the water recovered in the recovery box 25 can be pumped into the water tank 17 through the recovery pipe 29 connected to the second water pump 30, so that it is convenient for operators to filter and recycle the cleaning water, thereby preventing the waste of water resources and the increase of the use cost; and the filter screen 27 is pulled upward to pass through the positioning groove 28 to be removed from the two positioning blocks 26 to release the fixation in the recovery box 25, and taken out from the recovery box 25, so that it is convenient for operators to clean the impurities filtered on the filter screen 27, thereby preventing the unfavorable situation of clogging and inability to filter due to long-term use.

[0032] Working principle: When in use, first put the urea catalyst raw material into the mixing box 1 through the feed hopper 5. After the input, the screw rod 7 can be driven to rotate through the output end of the motor 6. When the screw rod 7 rotates, it drives the connecting sleeve 8 and the mixing blade 11 to rotate up and down synchronously in the mixing box 1 to stir the urea catalyst raw material in the mixing box 1. At the same time, when the mixing blade 11 rotates, it can drive the scraper rod 12 to rotate in the mixing box 1. Since the scraper rod 12 contacts the inner wall of the mixing box 1, the material adhering to the inner wall of the mixing box 1 can be scraped off when it rotates, so that the urea catalyst raw material in the mixing box 1 can be stirred up and down in an all-round manner to improve the mixing effect, and the raw material adhering to the inner wall of the mixing box 1 can be prevented from being stuck. Too much material will cause unnecessary influence on the normal mixing work. After the mixing is completed, the operator can turn the valve 15 counterclockwise to open the discharge pipe 14. After opening, it is convenient for the operator to discharge the mixed urea catalyst from the mixing box 1 for use. After the mixed urea catalyst is discharged from the mixing box 1, the operator can fill the water tank 17 with clean water through the water inlet trough 18, and then pump the water in the water tank 17 into the delivery pipe 21 through the pumping pipe 19 connected to the first water pump 20. After entering the delivery pipe 21, the water is sprayed into the mixing box 1 through the five nozzles 22, so that the operator can clean the mixing box 1 and the mixing blades 11 and the scraper 12 after the use of the mixing box 1 is completed. The washing work does not require manual washing by the operator, which brings a convenient effect. At this time, the valve body 24 is turned counterclockwise to open the water outlet pipe 23, and the washing water is discharged into the recovery box 25. When the water enters, the impurities contained in the washing water in the mixing box 1 can be filtered and separated through the filter screen 27 when the washing water is discharged into the recovery box 25 for collection, so that the impurities remain on the filter screen 27 and the water enters the recovery box 25 for collection. After collection, the water recovered in the recovery box 25 can be pumped into the water tank 17 through the recovery pipe 29 connected to the second water pump 30, so that the operator can filter and recycle the washing water, thereby preventing the extravagance and waste of water resources and the increase of the use cost. When the mixing blade 11 and the scraper rod 12 are corroded When the mixing box 1 is corroded or damaged, the handle 4 can be held to drive the top cover 2 to rotate counterclockwise through the threaded column 3 to be removed from the mixing box 1, and the mixing box 1 can be opened. Then, each group of plug-in blocks 10 can be pulled upward to be taken out from the slot 9 and separated from the connecting sleeve 8, so that the operator can replace the mixing blades 11 and the scraper rod 12 that have been corroded for a long time. At the same time, when it is necessary to clean the impurities filtered on the filter screen 27, the filter screen 27 can be pulled upward to pass through the positioning groove 28 and removed from the two positioning blocks 26 to release the fixation in the recovery box 25, and then taken out from the recovery box 25, so that the operator can clean the impurities filtered on the filter screen 27 conveniently, so as to prevent the unfavorable situation of clogging and inability to filter due to long-term use.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mixing device for urea catalyst, comprising a mixing box (1), characterized in that: The top of the inner cavity of the mixing box (1) is provided with a top cover (2), the bottom of the top cover (2) is fixedly installed with a threaded column (3), the top of the top cover (2) is provided with a feed hopper (5), the bottom of the mixing box (1) is provided with a motor (6), the output end of the motor (6) is sleeved with a screw rod (7) through a coupling, the middle of the screw rod (7) is sleeved with a connecting sleeve (8), the top of the connecting sleeve (8) is provided with slots (9) around, the inner cavity of the slots (9) is plugged with a plug-in block (10), and one side of the plug-in block (10) is fixedly installed with a plurality of mixing blades. The mixing box (1) is provided with a square block (13) fixedly mounted on the top of the screw rod (7), a support plate (16) fixedly mounted on the left side of the mixing box (1), a water tank (17) is arranged on the top of the support plate (16), a water outlet pipe (23) is sleeved on the left side of the mixing box (1), a valve body (24) is arranged on the top of the water outlet pipe (23), supporting legs (31) are fixedly mounted on all four sides of the bottom of the mixing box (1), a recovery box (25) is arranged on the left side of the two supporting legs (31), and positioning blocks (26) are arranged on both sides of the inner wall of the recovery box (25).

2. A urea catalyst mixing device according to claim 1, characterized in that: The top cover (2) is threadably connected to the mixing box (1) at the top of the inner cavity of the mixing box (1) via a threaded column (3), and a handle (4) is fixedly mounted on the top of the top cover (2).

3. A urea catalyst mixing device according to claim 1, characterized in that: The mixing blades (11) are movably connected to the connecting sleeve (8) in the slot (9) via the plug-in block (10); four mixing blades (11) form a group and four groups are provided in total; a scraper rod (12) is fixedly mounted on one side of each group of mixing blades (11).

4. A urea catalyst mixing device according to claim 1, characterized in that: A discharge pipe (14) is sleeved on the right side of the mixing box (1), and a valve (15) is arranged on the top of the discharge pipe (14).

5. A urea catalyst mixing device according to claim 1, characterized in that: The inner cavity of the recovery box (25) is provided with a filter screen (27), and both sides of the top of the filter screen (27) are provided with positioning grooves (28) adapted to the positioning block (26).

6. A urea catalyst mixing device according to claim 1, characterized in that: The top of the water tank (17) is provided with a water inlet groove (18), the top of the water tank (17) is sleeved with a water suction pipe (19), the middle of the water suction pipe (19) is sleeved with a first water pump (20), the bottom of the first water pump (20) is sleeved with a delivery pipe (21), and the bottom of the delivery pipe (21) is provided with a plurality of nozzles (22) at equal distances, and the number of the nozzles (22) is five in total.

7. A urea catalyst mixing device according to claim 1, characterized in that: A recovery pipe (29) is sleeved between the left side of the recovery box (25) and the left side of the water tank (17), and a second water pump (30) is sleeved in the middle of the recovery pipe (29).

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