Equipment for producing sodium nitrite composite antifreeze
The rotating disc and top rod structure are used in the sodium nitrite composite antifreeze production equipment to fully stir the raw materials at the bottom of the stirred tank, and the heat homogenization pipe and air outlet structure are used to solve the residual problems in the stirred tank, improving production efficiency and equipment cleaning Convenience.
Patent Information
- Application Number
- CN202210515496.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-05-11
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2042-05-11
AI Technical Summary
In the existing sodium nitrite composite antifreeze production equipment, the raw materials at the bottom of the stirring tank are unevenly stirred and the remaining raw materials in the stirring tank are difficult to clean.
A device including a stirring tank, a heat-hospital tube and a chassis is designed to fully stir the raw materials at the bottom of the stirring tank by rotating the disk and top rod structure, and to improve the stirring efficiency through the heat-hospital tube and pump body, and use the air outlet and flip structure to clean the stirring. Residual raw materials in the kettle.
It realizes uniform stirring of raw materials at the bottom of the stirred kettle and reduces residues, improving production efficiency and equipment cleaning convenience.
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Figure CN114931921B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of composite antifreeze production equipment, in particular to equipment for producing sodium nitrite composite antifreeze. Background Art
[0002] Sodium nitrite is an inorganic salt formed by the combination of nitrite ions and sodium ions. Sodium nitrite is easily deliquescent and soluble in water and liquid ammonia. Its aqueous solution is alkaline and slightly soluble in organic solvents such as ethanol, methanol, and ether. Sodium nitrite composite antifreeze can be made into powder or liquid to prevent frost heave damage caused by concrete construction under negative temperatures in winter and ensure the normal construction of concrete under negative temperatures. Its main components are sodium nitrite, carbonate, calcium chloride, calcium nitrite, urea, ethylene glycol, etc., which can lower the freezing point in concrete mixture.
[0003] The existing equipment for producing sodium nitrite composite antifreeze mainly has the following problems: 1. The antifreeze needs to be stirred in a stirring kettle during the production process. For powdered raw materials, due to the influence of the gravity of the raw materials themselves, the raw materials will accumulate on the bottom inner wall of the stirring kettle, and there is a certain gap between the stirring paddle in the stirring kettle and the bottom inner wall of the stirring kettle (to prevent friction between the stirring paddle and the inner wall of the stirring kettle), which makes it impossible for the stirring paddle to stir the raw materials on the bottom inner wall, resulting in uneven stirring of the raw materials at the bottom, affecting subsequent production; 2. During the discharging process of the stirring kettle, due to the powdery characteristics of the raw materials, they often adhere to the inner side of the stirring kettle, and a certain amount of raw materials will remain in the stirring kettle and cannot be discharged, requiring staff to clean it regularly, which is more troublesome; therefore, we propose an equipment for producing sodium nitrite composite antifreeze. Summary of the invention
[0004] Aiming at the problems in the prior art that raw materials at the bottom of a stirring kettle are not stirred evenly and part of the raw materials are easily left in the stirring kettle, the present invention provides a device for producing a sodium nitrite composite antifreeze.
[0005] The technical solution adopted by the present invention to solve the technical problem is: an equipment for producing sodium nitrite composite antifreeze, comprising a stirring kettle, a heat absorbing pipe and a chassis, wherein a stirring kettle is arranged on the top of the chassis, and a heat absorbing pipe is fixedly sleeved on the outer side wall of the stirring kettle;
[0006] The top center outer wall of the chassis is fixedly connected to the chassis, the bottom inner wall of the chassis is fixedly installed with a rotating motor, the top outer wall of the rotating motor is fixedly sleeved with a universal joint coupling, the top of the universal joint coupling is fixedly sleeved with a main shaft, the top outer wall of the main shaft is fixedly sleeved with a stirring paddle, and the bottom outer wall of the main shaft is fixedly sleeved with a rotating disk;
[0007] A connecting rod is fixedly installed on the top outer wall of the chassis and located outside the chassis, a sleeve block is fixedly connected to the top outer wall of the connecting rod, a fixed sleeve is fixedly sleeved on the inner side of one end of the sleeve block, and a top rod is arranged on the inner side of the fixed sleeve;
[0008] A feeding funnel is fixedly sleeved on the inner side of the top of the stirring kettle, an elastic cloth is arranged on the inner side of the stirring kettle, a discharge pipe is fixedly connected to the bottom of the elastic cloth, and a pipe plug is arranged on the inner side wall of the discharge pipe;
[0009] The outer wall of the bottom of the stirring kettle is fixedly connected with a connecting sleeve, the inner side of the bottom of the connecting sleeve is movably connected with a movable rod, the inner side of the bottom of the movable rod is movably sleeved with a vertical rod, and the bottom end of the vertical rod is fixedly connected with the outer wall of the top of the chassis;
[0010] The outer wall at the top of the stirring kettle is movably connected with a flip cover.
[0011] Specifically, a connecting block is fixedly installed on the outer wall of the top of the stirring kettle, a rotating shaft is movably sleeved on the inner wall of the connecting block, an air outlet is fixedly sleeved on the outer wall at the rear end of the rotating shaft, a sleeve is fixedly sleeved on the outer wall at the front end of the rotating shaft, a connecting tube is fixedly connected to the outer wall of the top of the chassis, a telescopic rod is movably sleeved on the inner side of the connecting tube, the top end of the telescopic rod is fixedly connected to a collecting tank, a steel rope is sleeved on the outer side of the sleeve, and the bottom end of the steel rope is fixedly connected to the outer wall of the collecting tank.
[0012] Specifically, a return torsion spring is provided at the connection between the rotating shaft and the connecting block, and a telescopic spring is provided between the collecting tank and the chassis.
[0013] Specifically, the outer wall of the top of the raised part of the rotating disk is provided with concave and convex patterns, a return spring is arranged between the fixed sleeve and the top rod, a roller is arranged on the inner side of the bottom of the top rod at a position corresponding to the rotating disk, and a rotating pin is arranged between the roller and the top rod.
[0014] Specifically, the top end and the bottom end of the movable rod are both spherical structures.
[0015] Specifically, a pump body is disposed on one side of the chassis, and one end of the heat equalizing pipe away from the air outlet is fixedly connected to the air outlet pipe of the pump body.
[0016] Beneficial effects of the present invention:
[0017] (1) The equipment for producing sodium nitrite composite antifreeze according to the present invention comprises a rotating disk and a push rod, wherein the rotating disk is fixedly sleeved on the main shaft, and the main shaft is driven to rotate by the output shaft of the rotating motor, and the rotating disk rotates together with the main shaft. When the raised portion on the rotating disk rotates to the position directly below the push rod, the push rod is lifted up and pushed toward the stirring kettle. At the same time, the top outer wall of the raised portion of the rotating disk is provided with concave-convex patterns, which can cause the push rod to produce a slight telescopic movement, causing the elastic cloth in the stirring kettle to vibrate, thereby bouncing the raw materials on the elastic cloth upward, making it easier for the stirring paddle to stir the raw materials at the bottom of the stirring kettle, so that the raw materials can be fully stirred.
[0018] (2) The equipment for producing sodium nitrite composite antifreeze according to the present invention comprises a heat equalizing tube and a pump body, one end of the heat equalizing tube is connected to the pump body, an air inlet pipe of the pump body is connected to a heat source, the pump body inhales air through the air inlet pipe, and the air is heated by the heat source and then transmitted to the heat equalizing tube, the heat equalizing tube is evenly wound around the outer wall of the stirring kettle for heat conduction, so as to increase the temperature in the stirring kettle and keep the temperature in the stirring kettle uniform at all times, so as to improve the stirring efficiency of the raw materials;
[0019] (3) The equipment for producing sodium nitrite composite antifreeze described in the present invention has an air outlet and a flip cover. After the stirring of the raw materials is completed, the pipe plug in the discharge pipe is pulled out, and the raw materials on the elastic cloth are discharged into the collection tank along the discharge pipe. The weight of the collection tank increases, and the collection tank begins to slowly descend. At this time, the steel rope on the outer wall of the collection tank drives the sleeve to rotate. The sleeve is fixedly connected to the rotating shaft, and the other end of the rotating shaft is also connected to the air outlet. When the rotating shaft rotates, it drives the air outlet to rotate, so that the air in the air outlet blows the raw materials remaining in the stirring kettle into the discharge pipe, thereby preventing excessive raw materials from remaining in the stirring kettle. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.
[0021] Figure 1 A schematic diagram of the first three-dimensional structure of a device for producing a sodium nitrite composite antifreeze provided by the present invention;
[0022] Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown;
[0023] Figure 3 A schematic diagram of the second three-dimensional structure of a device for producing a sodium nitrite composite antifreeze provided by the present invention;
[0024] Figure 4 for Figure 1 A schematic diagram of the front view structure of
[0025] Figure 5 It is a schematic diagram of the connection structure between the chassis, the main shaft and the stirring paddle;
[0026] Figure 6 for Figure 5 An enlarged schematic diagram of part B is shown;
[0027] Figure 7 It is a schematic diagram of the connection structure between the chassis, the main shaft, the elastic cloth, the discharge pipe and the stirring paddle;
[0028] Figure 8 It is a schematic diagram of the connection structure between the connecting rod, the sleeve block, the fixed sleeve, the push rod, the return spring, the roller and the rotating pin;
[0029] Fig. 9 It is a schematic diagram of the connection structure between the movable rod, the vertical rod and the connecting sleeve.
[0030] In the figure: 1. stirring kettle; 2. heat equalizing tube; 3. feeding funnel; 4. air outlet; 5. connecting block; 6. rotating shaft; 7. sleeve; 8. steel rope; 9. collecting tank; 10. telescopic spring; 11. vertical rod; 12. chassis; 13. chassis; 14. rotating motor; 15. movable rod; 16. connecting tube; 17. connecting rod; 18. sleeve block; 19. rotating disk; 20. stirring paddle; 21. main shaft; 22. push rod; 23. flip cover; 24. concave and convex pattern; 25. universal joint coupling; 26. rotating pin; 27. roller; 28. fixed sleeve; 29. reset spring; 30. telescopic rod; 31. pipe plug; 32. elastic cloth; 33. discharge pipe. DETAILED DESCRIPTION
[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.
[0032] like Figure 1-Figure 9 As shown, a device for producing sodium nitrite composite antifreeze of the present invention comprises a stirring kettle 1, a heat absorbing pipe 2 and a bottom plate 13, wherein the stirring kettle 1 is arranged on the top of the bottom plate 13, and the heat absorbing pipe 2 is fixedly sleeved on the outer side wall of the stirring kettle 1;
[0033] The top center outer wall of the chassis 13 is fixedly connected to the chassis 12, and the bottom inner wall of the chassis 12 is fixedly installed with a rotating motor 14, and the top outer wall of the rotating motor 14 is fixedly sleeved with a universal joint coupling 25, and the top of the universal joint coupling 25 is fixedly sleeved with a main shaft 21, and the top outer wall of the main shaft 21 is fixedly sleeved with a stirring paddle 20, and the bottom outer wall of the main shaft 21 is fixedly sleeved with a rotating disk 19; the top outer wall of the chassis 13 and the outer side of the chassis 12 are fixedly installed with a connecting rod 17, and the top outer wall of the connecting rod 17 is fixedly connected with a sleeve block 18, and the inner side of one end of the sleeve block 18 is fixedly sleeved with a fixed sleeve 28, and a top rod 22 is arranged inside the fixed sleeve 28; the top inner side of the mixing kettle 1 is fixedly sleeved with a feeding funnel 3, and the bottom outer wall of the mixing kettle 1 is fixedly connected with a connecting sleeve head 35, and the inner side of the bottom of the connecting sleeve head 35 is fixedly sleeved with a fixing sleeve 28. A movable rod 15 is movably connected, and a vertical rod 11 is movably sleeved on the inner side of the bottom of the movable rod 15, and the bottom end of the vertical rod 11 is fixedly connected to the top outer wall of the chassis 13; a concave-convex pattern 24 is provided on the top outer wall of the raised part of the rotating disk 19, and a return spring 29 is arranged between the fixed sleeve 28 and the top rod 22, and a roller 27 is arranged on the inner side of the bottom of the top rod 22 at a position corresponding to the rotating disk 19, and a rotating pin 26 is arranged between the roller 27 and the top rod 22, and the top end and the bottom end of the movable rod 15 are both spherical structures; a connecting block 5 is fixedly installed on the top outer wall of the stirring kettle 1, and a rotating shaft 6 is movably sleeved on the inner side wall of the connecting block 5, and an air outlet 4 is fixedly sleeved on the outer side wall at the rear end of the rotating shaft 6, and a pump body 34 is arranged on one side of the chassis 12, and the end of the heat absorbing pipe 2 away from the air outlet 4 is fixedly connected to the outlet pipe of the pump body 34;
[0034] Pour a proper amount of raw materials into the stirring kettle 1 through the feeding funnel 3, and then start the rotating motor 14. A universal joint coupling 25 is arranged between the output shaft of the rotating motor 14 and the main shaft 21. The output shaft of the rotating motor 14 transmits the rotation speed and direction to the main shaft 21 through the universal joint coupling 25. The main shaft 21 drives the stirring paddle 20 on the outer wall to rotate to stir the raw materials in the stirring kettle 1. When the main shaft 21 rotates, the rotating disk 19 on the outer wall at the bottom of the main shaft 21 rotates together with the main shaft 21. When the raised part of the rotating disk 19 rotates to the bottom of the top rod 22, the roller at the bottom of the top rod 22 The wheel 27 rolls along the rounded corner of the rotating disk 19 to the raised portion of the rotating disk 19, and the top rod 22 is pushed upward by the raised portion of the rotating disk 19 at this time, because the outer wall of the bottom of the mixing kettle 1 is installed with a connecting sleeve 35, and the bottom inner side of the connecting sleeve 35 is movably sleeved with a movable rod 15, and the bottom outer side of the movable rod 15 is sleeved with a vertical rod 11, and both ends of the movable rod 15 are spherical to facilitate the change of the angle of the movable rod 15, wherein the connecting sleeve 35, the movable rod 15 and the vertical rod 11 can be used as a supporting structure to support the mixing kettle 1, and at the same time do not affect the shaking of the mixing kettle 1, so the top end of the top rod 22 One end of the stirring kettle 1 can be lifted up, and a concave-convex pattern 24 is also provided on the top outer wall of the raised part of the rotating disk 19. When the roller 27 at the bottom of the push rod 22 moves along the concave-convex pattern 24, the concave-convex pattern 24 causes the roller 27, i.e., the push rod 22, to move up and down with a short displacement, so that the stirred kettle 1 being pushed up feels bumpy. An elastic cloth 32 is provided in the stirring kettle 1. The bumping of the stirring kettle 1 causes the powder raw materials on the elastic cloth 32 to flip up and down. Three groups of push rods 22 are provided, which are evenly distributed at the bottom of the stirring kettle 1, and a return spring 29 is provided between the push rod 22 and the fixed sleeve 28. When the rotating After the raised part of the disk 19 rotates over the bottom of the push rod 22, the reset spring 29 drives the push rod 22 to reset. This structure facilitates the stirring paddle 20 to fully stir the raw materials in the stirring tank 1. At the same time, the pump body 34 located on the bottom plate 13 works at the same time. The air inlet pipe of the pump body 34 is connected to the heat source (not shown in the figure). When the pump body 34 is operating, the air sucked from the air inlet pipe is heated by the heat source and enters the pump body 34, and then discharged into the heat equalizing pipe 2 through the air outlet pipe. The heat equalizing pipe 2 is evenly sleeved on the outer wall of the stirring tank 1. The stirring tank 1 is heated by the heat equalizing pipe 2, which is convenient for improving the stirring efficiency of the raw materials.
[0035] An elastic cloth 32 is arranged inside the mixing kettle 1, a discharge pipe 33 is fixedly connected to the bottom of the elastic cloth 32, and a pipe plug 31 is arranged on the inner wall of the discharge pipe 33; a flip cover 23 is movably connected to the outer wall of the top of the mixing kettle 1. A sleeve 7 is fixedly sleeved on the outer wall of the front end of the rotating shaft 6, a connecting tube 16 is fixedly connected to the outer wall of the top of the chassis 13, a telescopic rod 30 is movably sleeved inside the connecting tube 16, a collecting tank 9 is fixedly connected to the top end of the telescopic rod 30, a steel rope 8 is sleeved on the outer side of the sleeve 7, and the bottom end of the steel rope 8 is fixedly connected to the outer wall of the collecting tank 9, a reset torsion spring is arranged at the connection between the rotating shaft 6 and the connecting block 5, and a telescopic spring 10 is arranged between the collecting tank 9 and the chassis 13;
[0036] After the stirring is complete, the raw materials are discharged. The flap 23 on the top of the stirring kettle 1 is opened, and the pipe plug 31 on the inner side of the discharge pipe 33 at the bottom end of the elastic cloth 32 is pulled out. The discharge pipe 33 passes through the stirring kettle 1 and is aligned with the collecting tank 9. After the pipe plug 31 is pulled out, the raw materials are poured into the collecting tank 9 along the discharge pipe 33. When the raw materials in the collecting tank 9 are getting heavier, the weight of the collecting tank 9 becomes larger than the threshold of the telescopic spring 10, and the collecting tank 9 begins to sink. Since the outer wall of the collecting tank 9 is fixedly connected to the steel rope 8, and the other end of the steel rope 8 is wound around the sleeve 7, the sleeve The inner wall of the cylinder 7 is fixedly sleeved with a rotating shaft 6, and the outer wall at the rear end of the rotating shaft 6 is fixedly sleeved with an air outlet 4. After the collecting tank 9 sinks, the steel rope 8 drives the sleeve 7 to rotate as it moves downward, and the sleeve 7 drives the rotating shaft 6 to rotate. The rotating shaft 6 drives the air outlet 4 to rotate, so that the position of the air outlet 4 is downward. At this time, after the flip cover 23 is opened, the wind direction of the air outlet 4 blows air downward into the mixing kettle 1, and the residual raw materials in the mixing kettle 1 change their position after being blown by the wind and are discharged into the collecting tank 9 along the discharge pipe 33, thereby completing the discharge of the raw materials in the mixing kettle 1.
[0037] Working principle:
[0038] Raw material mixing process:
[0039] A proper amount of raw materials is poured into the stirring kettle 1 through the feeding funnel 3, and then the rotating motor 14 is started. The output shaft of the rotating motor 14 drives the main shaft 21 to rotate through the universal joint coupling 25, and the stirring paddle 20 on the main shaft 21 rotates to stir the raw materials in the stirring kettle 1. Because the rotating disk 19 is also sleeved on the main shaft 21, the rotating disk 19 rotates with the main shaft 21. When the raised part on the rotating disk 19 rotates to the right below the push rod 22, the push rod 22 is pushed upward to lift one end of the stirring kettle 1. At the same time, the raised part of the rotating disk 19 is provided with a concave-convex pattern 24 to enable the push rod 22 to move up and down with a short displacement, so that the lifted stirring kettle 1 is bumpy, and an elastic cloth 32 is also provided in the stirring kettle 1 to make the raw materials on the elastic cloth 32 roll, so that the stirring paddle 20 can fully stir the raw materials. At the same time, the pump body 34 is also in operation, and the stirring kettle 1 is heated by transporting hot air into the heat-averaging pipe 2 to improve the stirring efficiency of the raw materials.
[0040] Raw material discharge process:
[0041] After the stirring is completed, the pipe plug 31 is pulled out, so that the raw materials in the stirring kettle 1 are discharged into the collecting tank 9 through the discharge pipe 33. As the weight of the raw materials discharged into the collecting tank 9 increases and sinks, the steel rope 8 on the outer wall of the collecting tank 9 is driven to move downward, so that the sleeve 7 connected to one end of the steel rope 8 rotates, and the rotating shaft 6 on the inner wall of the sleeve 7 rotates, so that the air outlet 4 at the rear end of the rotating shaft 6 rotates downward to change the wind direction, and the flap 23 is opened, so that the air from the air outlet 4 is blown into the stirring kettle 1, and the excess residual raw materials are blown into the collecting tank 9.
[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.
Claims
1. A device for producing sodium nitrite composite antifreeze, characterized in that: The invention comprises a stirring kettle (1), a heat absorbing tube (2) and a chassis (13), wherein the stirring kettle (1) is arranged on the top of the chassis (13), and the heat absorbing tube (2) is fixedly sleeved on the outer wall of the stirring kettle (1); the top center outer wall of the chassis (13) is fixedly connected to a chassis (12), and the bottom inner wall of the chassis (12) is fixedly installed with a rotating motor (14), and the top outer wall of the rotating motor (14) is fixedly sleeved with a universal joint coupling (25), and the top of the universal joint coupling (25) is fixedly sleeved with a main shaft (21), and the top outer wall of the main shaft (21) is fixedly sleeved with a stirring paddle (20), and the bottom outer wall of the main shaft (21) is fixedly sleeved with a rotating disk (19); the top outer wall of the chassis (13) is fixedly installed with a connecting rod (17) located outside the chassis (12), and the top outer wall of the connecting rod (17) is fixedly sleeved with a stirring paddle (20), and the bottom outer wall of the main shaft (21) is fixedly sleeved with a rotating disk (19); A sleeve block (18) is connected, a fixed sleeve (28) is fixedly sleeved on the inner side of one end of the sleeve block (18), and a top rod (22) is arranged on the inner side of the fixed sleeve (28); a feeding funnel (3) is fixedly sleeved on the inner side of the top of the stirring kettle (1), an elastic cloth (32) is arranged on the inner side of the stirring kettle (1), a discharge pipe (33) is fixedly connected to the bottom of the elastic cloth (32), and a pipe plug (31) is arranged on the inner side wall of the discharge pipe (33); a connecting sleeve (35) is fixedly connected to the outer wall of the bottom of the stirring kettle (1), a movable rod (15) is movably connected to the inner side of the bottom of the connecting sleeve (35), a vertical rod (11) is movably sleeved on the inner side of the bottom of the movable rod (15), and the bottom end of the vertical rod (11) is fixedly connected to the outer wall of the top of the chassis (13); a flip cover (23) is movably connected to the outer wall of the top of the stirring kettle (1); A connecting block (5) is fixedly mounted on the top outer wall of the stirring kettle (1); a rotating shaft (6) is movably sleeved on the inner side wall of the connecting block (5); an air outlet (4) is fixedly sleeved on the outer side wall at the rear end of the rotating shaft (6); a sleeve (7) is fixedly sleeved on the outer side wall at the front end of the rotating shaft (6); a connecting tube (16) is fixedly connected to the top outer wall of the chassis (13); a telescopic rod (30) is movably sleeved on the inner side of the connecting tube (16); a collecting tank (9) is fixedly connected to the top end of the telescopic rod (30); a steel rope (8) is sleeved on the outer side of the sleeve (7); and the bottom end of the steel rope (8) is fixedly connected to the outer side wall of the collecting tank (9).
2. The device for producing a sodium nitrite composite antifreeze according to claim 1, characterized in that: A return torsion spring is provided at the connection between the rotating shaft (6) and the connecting block (5), and a telescopic spring (10) is provided between the collecting tank (9) and the chassis (13).
3. The device for producing a sodium nitrite composite antifreeze according to claim 1, characterized in that: The outer wall of the top of the raised part of the rotating disk (19) is provided with concave-convex patterns (24); a return spring (29) is arranged between the fixing sleeve (28) and the push rod (22); a roller (27) is arranged on the inner side of the bottom of the push rod (22) at a position corresponding to the rotating disk (19); and a rotating pin (26) is arranged between the roller (27) and the push rod (22).
4. The device for producing a sodium nitrite composite antifreeze according to claim 1, characterized in that: The top end and the bottom end of the movable rod (15) are both spherical structures.
5. The device for producing a sodium nitrite composite antifreeze according to claim 1, characterized in that: A pump body (34) is provided on one side of the chassis (12), and one end of the heat equalizing pipe (2) away from the air outlet (4) is fixedly connected to the air outlet pipe of the pump body (34).
Citation Information
Patent Citations
High-efficiency dead-angle-free shearing kettle
CN214051323U
Vacuum stirring device for false tooth processing
CN214764985U
