Dehumidification and rust prevention system for screw stirrer
By setting up multiple sets of pipe groups and joints in the screw mixer, blow-drying and nitrogen filling and anti-rust treatment is achieved, the problem of rust in the cylinder is solved, the service life is extended and the slurry quality is improved.
Patent Information
- Application Number
- CN202422422017.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-08
AI Technical Summary
After the screw mixer is shut down for a long time, the inner wall and internal parts of the cylinder are prone to oxidation and rust, which affects the service life and the quality of the finished slurry.
By setting up multiple tube groups and joints, the nitrogen gas source and compressed air source are connected to the barrel of the screw mixer to achieve blow-drying, nitrogen filling and anti-rust treatment, and combined with the use of vacuum source vacuum and cleaning liquid, ensuring that the inside of the barrel is dry and clean.
Effectively prevent oxidation and rust of the cylinder and its internal parts, extend the service life of the screw mixer, and improve the quality of slurry preparation.
Smart Images
Figure CN223170810U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of maintenance of screw mixers, in particular to a dehumidifying and rust-proofing system for screw mixers. Background Art
[0002] As a mixing device widely used in the industrial field, a screw mixer can effectively mix various materials evenly together to ensure that the materials reach a uniform state during the mixing process. The screw mixer has high mixing efficiency and can quickly disperse and mix the materials evenly, improving production efficiency and product quality.
[0003] In the prior art, since the screw mixer is commonly used for solid-liquid mixing, during its long-term shutdown process, the inner wall of the cylinder body of the screw mixer and the screw inside the cylinder body will oxidize and rust under the action of air and residual liquid, affecting the service life of the screw mixer and also affecting the quality of the finished slurry when it is used again. Content of the Utility Model
[0004] The applicant of the present utility model aims at the above-mentioned disadvantages in the existing production technology and provides a dehumidifying and rust-proofing system for a screw mixer, which can perform rust-proof treatment on the inner wall of the cylinder body of the screw mixer and the parts inside the cylinder body, thereby preventing it from oxidizing and rusting, prolonging the service life of the screw mixer, and preventing the quality of the finished slurry from being affected when the screw mixer is used again.
[0005] The technical solution adopted by the present utility model is as follows:
[0006] A dehumidifying and rust-proofing system for a screw mixer includes a screw mixer. A main pipeline is equipped at the powder inlet of the screw mixer. The first pipe group and the second pipe group are spacedly equipped on the main pipeline. The end of the first pipe group is connected to a nitrogen gas source, and the end of the second pipe group is connected to a compressed air source. The nitrogen gas source passes nitrogen gas into the inside of the cylinder body of the screw mixer through the first pipe group, the main pipeline, and the powder inlet in sequence. The compressed air source blows air into the inside of the cylinder body of the screw mixer through the second pipe group, the main pipeline, and the powder inlet in sequence.
[0007] A third pipe group is equipped on the second pipe group. The end of the third pipe group is connected to the first interface of the first four-way joint. The second interface of the first four-way joint is connected to the middle feed port of the cylinder body of the screw mixer through the fourth pipe group. When the first interface of the first four-way joint is communicated with the second interface of the first four-way joint, the compressed air source blows air into the inside of the cylinder body of the screw mixer through the second pipe group, the third pipe group, and the fourth pipe group in sequence.
[0008] A fifth pipe group is installed on the third pipe group. The end of the fifth pipe group is connected to the first interface of the first three-way joint. The second interface of the first three-way joint is connected to the tail inlet of the barrel of the screw mixer through a sixth pipe group. When the first interface and the second interface of the first three-way joint are in communication, the compressed air source blows air into the interior of the barrel of the screw mixer successively through the second pipe group, the third pipe group, the fifth pipe group, and the sixth pipe group.
[0009] The waste outlet of the screw mixer is connected to the first interface of the second four-way joint. The second interface of the second four-way joint is connected to the output end of the vacuum source through a seventh pipe group. When the first interface and the second interface of the second four-way joint are in communication, the vacuum source evacuates the interior of the barrel of the screw mixer through the seventh pipe group.
[0010] As a further improvement of the above technical solution:
[0011] The powder inlet is arranged at the head of the barrel of the screw mixer.
[0012] The main pipeline is arranged to extend along the axial direction of the barrel of the screw mixer.
[0013] The waste outlet of the screw mixer is arranged at the bottom end of the tail of the barrel of the screw mixer.
[0014] The waste outlet of the screw mixer is connected to the first interface of the second four-way joint through a conical hopper.
[0015] The second pipe group and the third pipe group are assembled through a second three-way joint, and the third pipe group and the fifth pipe group are assembled through a third three-way joint.
[0016] A pressure sensor is installed at the third interface of the second four-way joint.
[0017] It further includes a storage tank. The first liquid outlet of the storage tank is connected to the third interface of the first four-way joint through an eighth pipe group. The fourth interface of the first four-way joint is connected to the main pipeline through a ninth pipe group. When the third interface and the fourth interface of the first four-way joint are in communication, the cleaning liquid in the storage tank flows into the interior of the barrel of the screw mixer successively through the eighth pipe group, the ninth pipe group, the main pipeline, and the powder inlet.
[0018] The second liquid outlet of the storage tank is connected to the third interface of the first three-way joint through a tenth pipe group. When the third interface and the second interface of the first three-way joint are in communication, the cleaning liquid in the storage tank flows into the interior of the barrel of the screw mixer successively through the tenth pipe group and the sixth pipe group.
[0019] A waste discharge pipe group is installed at the fourth interface of the second four-way joint. When the fourth interface of the second four-way joint is communicated with the first interface of the second four-way joint, the cleaning liquid inside the barrel of the screw mixer flows out through the waste discharge pipe group.
[0020] The beneficial effects of the present utility model are as follows:
[0021] The structure of the present utility model is compact and reasonable, and it is convenient to operate. By setting multiple groups of pipe groups and multiple joints, the nitrogen gas source and the compressed air source are connected to the barrel of the screw mixer, so that the inside of the barrel of the screw mixer can be dried and nitrogen-filled for rust prevention, thereby avoiding oxidation and rust of the barrel and its internal parts, extending the service life of the screw mixer, and improving the quality of slurry preparation.
[0022] The present utility model also has the following advantages:
[0023] (1) In the present utility model, by setting the main pipeline, the first pipe group and the second pipe group are connected to the powder inlet, so that nitrogen can be filled into the barrel through the first pipe group, and compressed air can be blown into the barrel through the second pipe group; in addition, the main pipeline can also connect the ninth pipe group to the powder inlet, so that the cleaning liquid can be conveyed into the barrel.
[0024] (2) In the present utility model, air is blown into the middle part of the barrel through the third pipe group and the fourth pipe group, air is blown into the tail part of the barrel through the fifth pipe group and the sixth pipe group, and air is blown into the head part of the barrel through the second pipe group 12 and the main pipeline 10, so that the residual liquid inside the barrel can be evenly dried, the drying process of the residual liquid inside the barrel can be accelerated, and the drying efficiency can be improved.
[0025] (3) In the present utility model, by setting a vacuum source and a seventh pipe group, the inside of the barrel can be evacuated, so as to pump out the air, increase the proportion of nitrogen inside the barrel, and improve the nitrogen rust prevention effect.
[0026] (4) In the present utility model, by setting a tenth pipe group connected to the sixth pipe group, the cleaning liquid can be introduced into the barrel from the tail part, so as to improve the fluidity of the cleaning liquid inside the barrel and improve the cleaning effect.
[0027] (5) In the present utility model, by setting a conical hopper, which has a guiding effect on the cleaning liquid, it can make the cleaning liquid inside the barrel be discharged as much as possible, and reduce the liquid residue inside the barrel. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 is a schematic structural diagram of the present utility model.
[0029] Figure 2 is a schematic diagram of the present utility model in the working state Figure 1 .
[0030] Figure 3 Schematic diagram of the present utility model in the working state Figure 2 .
[0031] Wherein: 1, screw mixer; 2, powder inlet; 3, first three-way joint; 4, second three-way joint; 5, third three-way joint; 6, storage tank; 7, conical hopper; 8, first four-way joint; 9, second four-way joint; 10, main pipeline; 11, first pipe group; 12, second pipe group; 13, third pipe group; 14, fourth pipe group; 15, fifth pipe group; 16, sixth pipe group; 17, seventh pipe group; 18, eighth pipe group; 19, ninth pipe group; 20, tenth pipe group; 21, waste discharge pipe group; 22, vacuum source; 23, pressure sensor. Specific embodiments
[0032] The following combines with the attached drawings to illustrate the specific embodiments of the present utility model.
[0033] The dehumidification and rust prevention system of the present utility model is used on the screw mixer 1. By setting multiple pipe groups and multiple joints, the nitrogen gas source and the compressed air source are connected to the cylinder body of the screw mixer 1, and the inside of the cylinder body of the screw mixer 1 can be dried and filled with nitrogen for rust prevention, thereby avoiding oxidation and rust of the cylinder body and its internal parts, prolonging the service life of the screw mixer 1, and preventing the quality of the finished slurry from being affected when the screw mixer 1 is used again.
[0034] The specific structure and function of the present utility model are as follows:
[0035] As Figures 1 - 3 shown, a dehumidification and rust prevention system for a screw mixer includes a screw mixer 1. A main pipeline 10 is equipped at the powder inlet 2 of the screw mixer 1. The first pipe group 11 and the second pipe group 12 are spacedly equipped on the main pipeline 10. The end of the first pipe group 11 is connected to the nitrogen gas source, and the end of the second pipe group 12 is connected to the compressed air source. The nitrogen gas source passes nitrogen into the inside of the cylinder body of the screw mixer 1 through the first pipe group 11, the main pipeline 10, and the powder inlet 2 in sequence. The compressed air source blows air into the inside of the cylinder body of the screw mixer 1 through the second pipe group 12, the main pipeline 10, and the powder inlet 2 in sequence; by setting the main pipeline 10, the first pipe group 11 and the second pipe group 12 are connected to the powder inlet 2, so that nitrogen can be filled into the cylinder body through the first pipe group 11, and compressed air can be blown into the cylinder body through the second pipe group 12;
[0036] The compressed air is used to dry the residual liquid inside the cylinder body, and the nitrogen is used for rust prevention;
[0037] A third pipe group 13 is installed on the second pipe group 12. The end of the third pipe group 13 is connected to the first interface of the first four-way joint 8. The second interface of the first four-way joint 8 is connected to the middle feed port of the cylinder body of the screw mixer 1 through the fourth pipe group 14. When the first interface and the second interface of the first four-way joint 8 are in communication, the compressed air source blows air into the inside of the cylinder body of the screw mixer 1 through the second pipe group 12, the third pipe group 13, and the fourth pipe group 14 in sequence. A fifth pipe group 15 is installed on the third pipe group 13. The end of the fifth pipe group 15 is connected to the first interface of the first three-way joint 3. The second interface of the first three-way joint 3 is connected to the tail feed port of the cylinder body of the screw mixer 1 through the sixth pipe group 16. When the first interface and the second interface of the first three-way joint 3 are in communication, the compressed air source blows air into the inside of the cylinder body of the screw mixer 1 through the second pipe group 12, the third pipe group 13, the fifth pipe group 15, and the sixth pipe group 16 in sequence. By providing the third pipe group 13 and the fourth pipe group 14, it is possible to blow air into the middle part inside the cylinder body. By providing the fifth pipe group 15 and the sixth pipe group 16, it is possible to blow air into the tail part inside the cylinder body. In addition, the powder inlet 2 is arranged at the head of the cylinder body of the screw mixer 1. Through the second pipe group 12 and the main pipeline 10, it is possible to blow air into the head part inside the cylinder body, which can uniformly dry the residual liquid inside the cylinder body, accelerate the drying process of the residual liquid inside the cylinder body, and improve the drying efficiency.
[0038] The waste discharge port of the screw mixer 1 is connected to the first interface of the second four-way joint 9. The second interface of the second four-way joint 9 is connected to the output end of the vacuum source 22 through the seventh pipe group 17. When the first interface and the second interface of the second four-way joint 9 are in communication, the vacuum source 22 evacuates the inside of the cylinder body of the screw mixer 1 through the seventh pipe group 17. The vacuum source 22 uses a vacuum pump. By providing the vacuum source 22 and the seventh pipe group 17, it is possible to evacuate the inside of the cylinder body, thereby pumping out air, increasing the proportion of nitrogen inside the cylinder body, and improving the nitrogen rust prevention effect.
[0039] It further includes a storage tank 6. The first liquid outlet of the storage tank 6 is connected to the third interface of the first four-way joint 8 through the eighth pipe group 18. The fourth interface of the first four-way joint 8 is connected to the main pipeline 10 through the ninth pipe group 19. When the third interface and the fourth interface of the first four-way joint 8 are in communication, the cleaning liquid in the storage tank 6 flows into the inside of the cylinder body of the screw mixer 1 through the eighth pipe group 18, the ninth pipe group 19, the main pipeline 10, and the powder inlet 2 in sequence. By providing the storage tank 6, the eighth pipe group 18, and the ninth pipe group 19, it is possible to introduce the cleaning liquid into the cylinder body, thereby cleaning the inside of the cylinder body and further improving the cleanliness of the inside of the cylinder body.
[0040] The second liquid outlet of the storage tank 6 is connected to the third interface of the first three-way joint 3 through the tenth pipe group 20. When the third interface of the first three-way joint 3 is communicated with the second interface of the first three-way joint 3, the cleaning liquid in the storage tank 6 sequentially flows into the interior of the cylinder body of the screw mixer 1 through the tenth pipe group 20 and the sixth pipe group 16. By providing the tenth pipe group 20 connected to the sixth pipe group 16, the cleaning liquid can be introduced from the tail of the cylinder body, thereby improving the fluidity of the cleaning liquid inside the cylinder body and enhancing the cleaning effect.
[0041] In addition, driving pumps can be respectively installed on the eighth pipe group 18 and the tenth pipe group 20 to improve the fluidity of the cleaning liquid.
[0042] A waste discharge pipe group 21 is installed at the fourth interface of the second four-way joint 9. When the fourth interface of the second four-way joint 9 is communicated with the first interface of the second four-way joint 9, the cleaning liquid inside the cylinder body of the screw mixer 1 flows out through the waste discharge pipe group 21. The cleaned cleaning liquid is discharged from the interior of the cylinder body through the waste discharge pipe group 21.
[0043] A pressure sensor 23 is installed at the third interface of the second four-way joint 9. The pressure sensor 23 is used to monitor the pressure inside the cylinder body in real time.
[0044] The second pipe group 12 and the third pipe group 13 are assembled through the second three-way joint 4, and the third pipe group 13 and the fifth pipe group 15 are assembled through the third three-way joint 5. By providing the three-way joint, the flexibility of the pipeline arrangement can be improved, ensuring the stable and efficient operation of the system.
[0045] In addition, in the present utility model, in order to ensure the correct flow direction of various fluids (including nitrogen, compressed air, and cleaning liquid) in the pipeline, it can be achieved by installing valves on the corresponding pipe groups, or by using four-way valves and three-way valves; specifically,
[0046] Taking the first four-way joint 8 as an example, the first interface of the first four-way joint 8 is connected to the third pipe group 13, the second interface of the first four-way joint 8 is connected to the fourth pipe group 14, the third interface of the first four-way joint 8 is connected to the eighth pipe group 18, and the fourth interface of the first four-way joint 8 is connected to the ninth pipe group 19;
[0047] When controlling the flow path of the first four-way joint 8 by installing valves on the corresponding pipe groups, a first valve is installed on the third pipe group 13, a second valve is installed on the fourth pipe group 14, a third valve is installed on the eighth pipe group 18, and a fourth valve is installed on the ninth pipe group 19;
[0048] When it is necessary to introduce the cleaning liquid into the cylinder body, that is, when the third interface of the first four-way joint 8 needs to be communicated with the fourth interface of the first four-way joint 8, then the first valve and the second valve are closed, and the third valve and the fourth valve are opened to achieve this.
[0049] When it is necessary to introduce compressed air into the cylinder body, that is, it is necessary to conduct the first interface and the second interface of the first four-way joint 8. Then, by opening the first valve and the second valve and closing the third valve and the fourth valve, it can be achieved.
[0050] When it is achieved by using a four-way valve, the first four-way joint 8 adopts a four-way reversing valve, and it can be achieved directly by controlling the conduction of its corresponding interfaces through the four-way reversing valve.
[0051] The realization methods of the conduction between different joints of the second four-way joint 9 and the first three-way joint 3 are similar to those of the first four-way joint 8, and will not be elaborated here.
[0052] The main pipeline 10 extends along the axial direction of the cylinder body of the screw mixer 1, which can be compactly arranged and reduce the floor area of the system.
[0053] The waste discharge port of the screw mixer 1 is arranged at the bottom end of the tail of the cylinder body of the screw mixer 1, which can facilitate the discharge of the cleaning liquid after cleaning.
[0054] The waste discharge port of the screw mixer 1 is connected to the first interface of the second four-way joint 9 through the conical hopper 7. The conical hopper 7 has a guiding effect on the cleaning liquid, so that as much cleaning liquid as possible inside the cylinder body is discharged, reducing the liquid residue inside the cylinder body.
[0055] The working process of the present utility model is as follows:
[0056] First, as Figure 2 shown, the nitrogen gas source is closed and the compressed air source is closed, so that the third interface and the fourth interface of the first four-way joint 8 are conducted, and the third interface and the second interface of the first three-way joint 3 are conducted, so that the cleaning liquid in the storage tank 6 flows into the cylinder body to clean the cylinder body;
[0057] After cleaning, the waste liquid inside the cylinder body is discharged through the waste discharge pipe group 21;
[0058] Subsequently, as Figure 3 shown, the compressed air source is opened, and the first interface and the second interface of the first four-way joint 8 are conducted, and the first interface and the second interface of the first three-way joint 3 are conducted;
[0059] The compressed air gas source sequentially blows through the second pipe group 12, the main pipeline 10, and the powder inlet 2 to the head inside the cylinder. At the same time, the compressed air gas source sequentially blows through the second pipe group 12, the third pipe group 13, and the fourth pipe group 14 to the middle inside the cylinder. At the same time, the compressed air gas source sequentially blows through the second pipe group 12, the third pipe group 13, the fifth pipe group 15, and the sixth pipe group 16 to the tail inside the cylinder until the residual liquid inside the cylinder is dried;
[0060] Then, the compressed air gas source is closed, and the vacuum source 22 is turned on to evacuate the inside of the cylinder through the seventh pipe group 17, so that the air inside the cylinder is discharged and a negative pressure is formed inside the cylinder;
[0061] Finally, as Figure 3 shown, the nitrogen gas source is opened, and nitrogen gas is introduced into the cylinder through the first pipe group 11, the main pipeline 10, and the powder inlet 2;
[0062] The pressure inside the cylinder is monitored in real time through the pressure sensor 23. When the real-time pressure inside the cylinder reaches the first set value P1, the exhaust pipe group 21 is used to exhaust and relieve pressure until the real-time pressure inside the cylinder reaches the second set value P2 (P1 > P2 > 0). This exhaust operation is repeated at least once to complete nitrogen filling.
[0063] In addition, after nitrogen filling is completed, the pressure inside the cylinder can be monitored in real time through the pressure sensor 23. When the pressure inside the cylinder drops, nitrogen gas is replenished into the cylinder.
[0064] The above description is an explanation of the present invention, not a limitation of the invention. The scope defined by the present invention is referred to the claims. Any form of modification can be made within the protection scope of the present invention.
Claims
1. A dehumidifying and rust-proof system for a screw mixer, comprising a screw mixer (1), characterized in that: A main pipeline (10) is installed at the powder inlet (2) of the screw mixer (1). The main pipeline (10) is equipped with a first pipe group (11) and a second pipe group (12) at intervals. The end of the first pipe group (11) is connected to a nitrogen gas source, and the end of the second pipe group (12) is connected to a compressed air source. The nitrogen gas source passes nitrogen gas into the interior of the cylinder of the screw mixer (1) through the first pipe group (11), the main pipeline (10), and the powder inlet (2) in sequence. The compressed air source blows air into the interior of the cylinder of the screw mixer (1) through the second pipe group (12), the main pipeline (10), and the powder inlet (2) in sequence; A third pipe group (13) is installed on the second pipe group (12). The end of the third pipe group (13) is connected to the first interface of the first four-way joint (8). The second interface of the first four-way joint (8) is connected to the middle feed inlet of the cylinder of the screw mixer (1) through the fourth pipe group (14). When the first interface and the second interface of the first four-way joint (8) are conducted, the compressed air source blows air into the interior of the cylinder of the screw mixer (1) through the second pipe group (12), the third pipe group (13), and the fourth pipe group (14) in sequence; A fifth pipe group (15) is installed on the third pipe group (13). The end of the fifth pipe group (15) is connected to the first interface of the first three-way joint (3). The second interface of the first three-way joint (3) is connected to the tail feed inlet of the cylinder of the screw mixer (1) through the sixth pipe group (16). When the first interface and the second interface of the first three-way joint (3) are conducted, the compressed air source blows air into the interior of the cylinder of the screw mixer (1) through the second pipe group (12), the third pipe group (13), the fifth pipe group (15), and the sixth pipe group (16) in sequence; The waste discharge port of the screw mixer (1) is connected to the first interface of the second four-way joint (9). The second interface of the second four-way joint (9) is connected to the output end of the vacuum source (22) through the seventh pipe group (17). When the first interface and the second interface of the second four-way joint (9) are conducted, the vacuum source (22) evacuates the interior of the cylinder of the screw mixer (1) through the seventh pipe group (17).
2. The dehumidifying and rust-proof system for a screw mixer according to claim 1, characterized in that: The powder inlet (2) is arranged at the head of the cylinder of the screw mixer (1).
3. The dehumidifying and rust-proof system for a screw mixer according to claim 1, characterized in that: The main pipeline (10) is arranged along the axial direction of the cylinder of the screw mixer (1).
4. The dehumidifying and rust-proof system for a screw mixer according to claim 1, characterized in that: The waste discharge port of the screw mixer (1) is arranged at the bottom of the tail of the cylinder of the screw mixer (1).
5. The dehumidifying and rust-proof system for a screw mixer according to claim 1, wherein: The waste discharge port of the screw mixer (1) is connected to the first interface of the second four-way joint (9) through a conical hopper (7).
6. The dehumidifying and rust-proof system for a screw mixer as described in claim 1, wherein: The second pipe group (12) and the third pipe group (13) are assembled through a second three-way joint (4), and the third pipe group (13) and the fifth pipe group (15) are assembled through a third three-way joint (5).
7. The dehumidifying and rust-proof system for a screw mixer according to claim 1, wherein: A pressure sensor (23) is installed at the third interface of the second four-way joint (9).
8. The dehumidifying and rust-proof system for a screw mixer as described in claim 1, wherein: It further includes a storage tank (6). The first liquid outlet of the storage tank (6) is connected to the third interface of the first four-way joint (8) through an eighth pipe group (18). The fourth interface of the first four-way joint (8) is connected to the main pipeline (10) through a ninth pipe group (19). When the third interface and the fourth interface of the first four-way joint (8) are in communication, the cleaning liquid in the storage tank (6) sequentially passes through the eighth pipe group (18), the ninth pipe group (19), the main pipeline (10), and the powder inlet (2) and flows into the interior of the cylinder body of the screw mixer (1).
9. The dehumidifying and rust-proof system for a screw mixer according to claim 8, characterized in that: The second liquid outlet of the storage tank (6) is connected to the third interface of the first three-way joint (3) through a tenth pipe group (20). When the third interface and the second interface of the first three-way joint (3) are in communication, the cleaning liquid in the storage tank (6) sequentially passes through the tenth pipe group (20) and the sixth pipe group (16) and flows into the interior of the cylinder body of the screw mixer (1).
10. The dehumidifying and rust-proof system for a screw mixer according to claim 8, characterized in that: A waste discharge pipe group (21) is installed at the fourth interface of the second four-way joint (9). When the fourth interface and the first interface of the second four-way joint (9) are in communication, the cleaning liquid inside the cylinder body of the screw mixer (1) flows out through the waste discharge pipe group (21).