Micro negative pressure sintering pallet
By introducing a negative pressure pump and a dust prevention device into the sintering trolley, a micro-negative pressure environment is created, which solves the problems of high cost and uneven spraying of existing equipment and achieves a more efficient sintering effect.
Patent Information
- Application Number
- CN202520231206.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-13
AI Technical Summary
The existing sintering trolley equipment is costly and complex to maintain. The solenoid valves are prone to failure, resulting in uneven blowing effect and affecting production efficiency.
The design adopts a micro-negative pressure sintering trolley, which creates a micro-negative pressure environment through a negative pressure pump. Combined with dustproof devices and arc-shaped side plate design, it ensures uniform material distribution and stable negative pressure operation.
It improves sintering efficiency and temperature uniformity, reduces maintenance difficulty, and enhances production efficiency and sintering quality.
Smart Images

Figure CN223939961U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of arc straightening machines, and in particular to a micro-negative pressure sintering trolley. Background Technology
[0002] A sintering trolley is a piece of equipment designed specifically for industrial applications. It plays a core role in the sintering process. This equipment is usually made of special high-temperature resistant materials, which enables it to effectively cope with harsh working conditions in high-temperature environments. The original design purpose and main function of the sintering trolley is to carry a variety of materials and promote the solidification of materials or improve their physical properties through chemical reactions in high-temperature environments, so as to meet the diverse needs of industrial production processes.
[0003] There is currently a Chinese patent document CN202420378237.2 describing a ring-shaped sintering trolley with an adjustable gas blowing device, comprising a sintering trolley body; the sintering trolley body includes a trolley frame; side rails are provided on both sides of the trolley frame; a multi-segment gas blowing positioner is provided on the outer wall of the side rails; the multi-segment gas blowing positioner includes: a rectangular box, with two or more gas outlet areas provided along the height direction on the inner side wall of the rectangular box; each gas outlet area is provided with several gas outlet holes; and a corresponding gas outlet area is provided in the rectangular box. It includes a pressure-resistant air chamber connected to the air outlet; an air inlet is provided on the upper side of the rectangular box body corresponding to each pressure-resistant air chamber; the air inlets are spaced apart from the inside to the outside; a spray window is provided on the outer wall of the panel corresponding to each air outlet area; it also includes two or more multi-hole connectors slidably disposed on the upper part of the rectangular box body, each multi-hole connector having an air guide pipe corresponding to the air inlet, and a controlled solenoid valve being provided on the air guide pipe; and a control device that controls the solenoid valve to open a predetermined solenoid valve according to a predetermined program to spray different height areas within the sintering trolley body.
[0004] However, the above-mentioned patent has certain defects in use. The device is expensive to manufacture, has high maintenance costs and is complicated to repair. It is difficult to cope with the harsh environment in actual work. Moreover, when the sintering machine is ignited, the high temperature will cause the solenoid valve to malfunction, which will affect the blowing effect, resulting in uneven sintering and reduced production efficiency.
[0005] To address these issues, a micro-negative pressure sintering trolley is proposed. Utility Model Content
[0006] In order to overcome the shortcomings of the existing technology, this utility model provides a micro-negative pressure sintering trolley.
[0007] This utility model is achieved using the following technical solution:
[0008] A micro-negative pressure sintering trolley, including
[0009] The vehicle body has two support beams inside, and multiple flow grids are provided through the two support beams. Multiple grates are installed between the two support beams and the top of the vehicle body. A bracket is provided at the bottom of the vehicle body, and a motor is connected to the bracket. A negative pressure pump is provided on one side of the output end of the motor, and the negative pressure pump is located at the bottom of the vehicle body. The negative pressure pump has an exhaust port on the side away from the motor, and an air intake port is provided at the top of the negative pressure pump through the bottom of the vehicle body.
[0010] As a preferred embodiment of this utility model, a dustproof device is provided between the two support beams, and the air intake is located inside the dustproof device. Dustproof grids are movably installed on all four sides of the dustproof device, and an inclined top is provided on the top of the dustproof device.
[0011] As a preferred embodiment of this utility model, the top of the vehicle body is provided with two side plates, and the two side plates are located on both sides of the top of the vehicle body. A plurality of first through holes are provided through the connection between the top of the vehicle body and the two side plates. Each of the plurality of first through holes is threaded with a first bolt, and the end of the first bolt is provided with a first nut.
[0012] As a preferred embodiment of this utility model, each of the two side plates is provided with an extension plate at its top, and the connection between the extension plate and the side plate is provided with a plurality of second through holes, each of the plurality of second through holes being threaded with a second bolt, and the end of the second bolt being provided with a plurality of second nuts.
[0013] As a preferred embodiment of this utility model, the vehicle body is provided with multiple wheels on both sides, and the vehicle body is provided with multiple reinforcing ribs on both sides.
[0014] As a preferred embodiment of this utility model, the inner sides of the two side plates are arc-shaped.
[0015] Compared with existing technologies, the advantages of this utility model are:
[0016] 1. By installing a negative pressure pump at the bottom of the vehicle body, when the material is full, the air inlet at the top of the negative pressure pump can effectively draw in the cold air between the materials above the grate bars, forming a micro negative pressure environment. Under micro negative pressure, the temperature and ignition uniformity can be improved, thereby significantly improving the sintering efficiency.
[0017] 2. The inclined top of the dustproof device is inclined on both sides to prevent materials from falling into the negative pressure pump through the grate bars and avoid blockage. At the same time, dustproof grids are installed on all four sides of the dustproof device to effectively block dust from entering and ensure continuous and stable operation of the negative pressure.
[0018] 3. The inner sides of the two side panels on the top of the vehicle body are designed with an arc shape, which helps to distribute the material evenly during loading, reduce dead corners, and improve sintering quality. At the same time, extension plates are fixedly installed on the top of the two side panels by matching the second bolt and the second nut, which facilitates disassembly and maintenance and allows for loading more material during actual use. Attached Figure Description
[0019] Figure 1 This is an overall structural diagram of the present invention;
[0020] Figure 2 This is an exploded view of the present invention;
[0021] Figure 3 This is a structural diagram of the dustproof device of this utility model;
[0022] Figure 4 This is a diagram of the internal structure of the vehicle body of this utility model;
[0023] Figure 5 This is a sectional view of the vehicle body of this utility model;
[0024] In the diagram: 1. Vehicle body; 2. Support beam; 3. Grate bar; 4. Flow grid; 5. Dustproof device; 6. Dustproof grid; 7. Inclined top; 8. Bracket; 9. Motor; 10. Negative pressure pump; 11. Air intake port; 12. Exhaust port; 13. Wheel; 14. Side plate; 15. First through hole; 16. First bolt; 17. Extension plate; 18. Second through hole; 19. Second bolt; 20. First nut; 21. Second nut; 22. Reinforcing rib. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0026] Example:
[0027] Please see Figures 1-5 A micro-negative pressure sintering trolley, comprising:
[0028] The vehicle body 1 has two support beams 2 inside, and multiple flow grids 4 are provided through the two support beams 2. Multiple grates 3 are installed between the two support beams 2 and the top of the vehicle body 1. The bottom of the vehicle body 1 has a bracket 8, and the bracket 8 is connected to a motor 9. A negative pressure pump 10 is provided on one side of the output end of the motor 9, and the negative pressure pump 10 is located at the bottom of the vehicle body 1. The negative pressure pump 10 has an exhaust port on the side away from the motor 9. The top of the negative pressure pump 10 is provided with an air intake 11 through the bottom of the vehicle body 1.
[0029] In this embodiment, the vehicle body 1 has two support beams 2 inside, and multiple flow grids 4 are provided through the two support beams 2. The flow grids 4 are evenly distributed to ensure smooth airflow. Multiple grate bars 3 are installed between the top of the two support beams 2 and the top of the vehicle body 1. The grate bars 3 are used to support the sintering material and allow gas to pass through. The bottom of the vehicle body 1 has a bracket 8. The bracket 8 is connected to a motor 9. The drive end of the motor 9 is connected to a negative pressure pump 10. The negative pressure pump 10 is located at the bottom of the vehicle body 1. The bracket 8 is used to support the motor 9 and the negative pressure pump 10. The negative pressure pump 10 has an outlet at the end away from the motor 9. The top of the negative pressure pump 10 has an air intake 11 through the bottom of the vehicle body 1. The air intake 11 is connected to the inside of the vehicle body 1.
[0030] Specifically, a dustproof device 5 is provided between the two supporting beams 2, and the air intake 11 is located inside the dustproof device 5. Dustproof grids 6 are movably installed on all four sides of the dustproof device 5, and an inclined top 7 is provided on the top of the dustproof device 5.
[0031] In this embodiment, a dustproof device 5 is provided between the two support beams 2. The dustproof device 5 is provided with dustproof grids 6 on all four sides. The dustproof grids 6 are movably installed for easy disassembly and cleaning. At the same time, the dustproof grids 6 prevent dust from entering the air intake 11. An inclined top 7 is provided on the top of the dustproof device 5 to effectively guide the dust and prevent it from accumulating.
[0032] Specifically, the top of the vehicle body 1 is provided with two side plates 14, and the two side plates 14 are located on both sides of the top of the vehicle body 1. Multiple first through holes 15 are provided at the connection between the top of the vehicle body 1 and the two side plates 14. Each of the multiple first through holes 15 is threaded with a first bolt 16, and the end of the first bolt 16 is provided with a first nut 20.
[0033] In this embodiment, the top of the vehicle body 1 is provided with two side plates 14, which are located on both sides of the top of the vehicle body 1. The bottom of the side plates 14 and the contact position with the top of the vehicle body 1 are provided with multiple first through holes 15. The first through holes 15 are threaded holes, and the multiple first through holes 15 are internally threaded with first bolts 16. The end of the first bolts 16 is connected with a nut for fastening, which facilitates maintenance and replacement.
[0034] Specifically, each of the two side plates 14 is provided with an extension plate 17 at its top, and a plurality of second through holes 18 are provided at the connection between the extension plate 17 and the side plate 14. A second bolt 19 is threaded into each of the plurality of second through holes 18, and a plurality of second nuts 21 are provided at the end of the second bolt 19.
[0035] In this embodiment, each of the two side plates 14 is provided with an extension plate 17 at its top. The bottom of the extension plate 17 is provided with a plurality of second through holes 18 at the contact point between the bottom of the extension plate 17 and the top of the side plate 14. The second through holes 18 are threaded holes. The plurality of second through holes 18 are internally threaded with second bolts 19, and the ends of the second bolts 19 are connected with second nuts 21 to ensure that the extension plate 17 is stable and prevents loosening. By installing the extension plate 17 on the top of the side plate 14, more material can be loaded, thus improving processing efficiency.
[0036] Specifically, the vehicle body 1 has multiple wheels 13 on both sides, and multiple reinforcing ribs 22 on both sides.
[0037] In this embodiment, the vehicle body 1 is provided with multiple wheels 13 on both sides. The wheels 13 are used to support the vehicle body 1 and the side plate 14 to run on the track. The main body of the vehicle body 1 is provided with multiple reinforcing ribs 22 on both sides. The multiple reinforcing ribs 22 are triangular in shape to enhance the structural stability of the vehicle body 1.
[0038] Specifically, the inner sides of the two side plates 14 are arc-shaped.
[0039] In this embodiment, the inner side of the side plate 14 is arc-shaped, which helps to distribute the material evenly and reduce dead corners during material filling.
[0040] The principle of this utility model is as follows: When the material to be sintered is loaded, the material will be loaded above the grate bar 3. With the cooperation of two side plates 14, the material can be evenly spread on the top of the grate bar. If more material needs to be loaded, the extension plate 17 is fixed by the second bolt 19 to increase the height of the side plate 14 and ensure that the material loading capacity is increased. After the material is loaded, the motor 9 drives the negative pressure pump 10 to perform suction. The air intake 11 at the top of the negative pressure pump 10 can effectively suck up the cold air between the materials above the grate bar 3 to form a micro negative pressure environment.
[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.
Claims
1. A micro-negative pressure sintering trolley, characterized in that, include: The vehicle body (1) has two support beams (2) inside, and the two support beams (2) are connected by multiple flow grids (4). Multiple grates (3) are installed between the two support beams (2) and the top of the vehicle body (1). The bottom of the vehicle body (1) is provided with a bracket (8). The bracket (8) is connected to a motor (9). A negative pressure pump (10) is provided on one side of the output end of the motor (9). The negative pressure pump (10) is located at the bottom of the vehicle body (1). The negative pressure pump (10) has an outlet on the side away from the motor (9). The top of the negative pressure pump (10) is connected to an air intake (11) at the bottom of the vehicle body (1).
2. The micro-negative pressure sintering trolley according to claim 1, characterized in that: A dustproof device (5) is provided between the two support beams (2), and the air intake (11) is located inside the dustproof device (5). Dustproof grids (6) are movably installed on all four sides of the dustproof device (5), and an inclined top (7) is provided on the top of the dustproof device (5).
3. The micro-negative pressure sintering trolley according to claim 2, characterized in that: The vehicle body (1) has two side plates (14) on the top, and the two side plates (14) are located on both sides of the top of the vehicle body (1). Multiple first through holes (15) are provided at the connection between the top of the vehicle body (1) and the two side plates (14). Each of the multiple first through holes (15) is threaded with a first bolt (16), and the end of the first bolt (16) is provided with a first nut (20).
4. The micro-negative pressure sintering trolley according to claim 3, characterized in that: The top of each of the two side plates (14) is provided with an extension plate (17), and the connection between the extension plate (17) and the side plate (14) is provided with a plurality of second through holes (18). Each of the plurality of second through holes (18) is threaded with a second bolt (19), and the end of the second bolt (19) is provided with a plurality of second nuts (21).
5. A micro-negative pressure sintering trolley according to claim 4, characterized in that: The vehicle body (1) has multiple wheels (13) on both sides, and multiple reinforcing ribs (22) on both sides.
6. The micro-negative pressure sintering trolley according to claim 5, characterized in that: The inner sides of the two side plates (14) are arc-shaped.
Citation Information
Patent Citations
Annular sintering pallet with adjustable gas injection device
CN221825904U