Barreled MDI heating and pumping-out device

Abstract

The utility model relates to the technical field of heating equipment, in particular to a barreled MDI heating pump-out device which comprises a rack, a placing seat and a heating pump-out mechanism, the heating pump-out mechanism comprises a mounting frame, a heating belt, a lifting driving part, a cover plate, an output pipe, an input pipe, a clamping driving part and a clamping plate, the clamping driving part is fixedly connected with the rack, and the clamping plate is fixedly connected with the placing seat. The output end of the clamping driving part is in transmission connection with the clamping plates, the lifting driving part is fixedly connected with the rack, the output end of the lifting driving part is in transmission connection with the mounting frame, the heating belt is arranged between the two clamping plates, the end of the heating belt is fixedly connected with the heating block on the side where the heating belt is located, and the cover plate is fixedly connected with the mounting frame. The output pipe and the input pipe are both arranged on the cover plate, the clamping plate is attached to the barrel wall to fix the heating belt, all-directional contact heating is achieved, local overheating or non-melting areas are avoided, and through arrangement of the cover plate, the input pipe and the output pipe, pneumatic pump-out is achieved, and the output efficiency of liquid MDI is improved.

Description

A barrel-type MDI heating pump device Technical Field

[0001] This utility model relates to the field of heating equipment technology, and in particular to a heating pump device for bottled MDI. Background Technology

[0002] MDI (diphenylmethane diisocyanate) readily solidifies at room temperature, requiring heating to a liquid state before pumping in industrial applications. Traditional methods often employ internal heating devices (such as heating rods) to heat the MDI container, but these methods suffer from uneven heating, low melting efficiency, and the tendency for solid MDI to remain at the bottom of the container after melting, necessitating manual cleaning. Furthermore, the pumping process often relies on pumps to extract liquid MDI, leading to incomplete pumping, particularly ineffective for high-viscosity or large-capacity MDI containers. It is also difficult to distinguish between solid and liquid MDI, and incomplete melting of solid MDI can clog the pump. Summary of the Invention

[0003] The technical problem to be solved by this utility model is: in order to overcome the problems of uneven heating, low melting efficiency and incomplete pumping of liquid MDI that often rely on pumps to extract liquid MDI in the existing technology, especially the poor effect on high viscosity or large capacity MDI, a heating and pumping device for MDI in drums is provided.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a barrel-type MDI heating pumping device, including a frame, a placement seat, and a heating pumping mechanism. The placement seat is used for placing the barrel and is arranged on the frame. The heating pumping mechanism is arranged on the frame and includes a mounting frame, a heating belt, a lifting drive component, a cover plate, an output pipe, an input pipe, a clamping drive component, and a clamping plate. The clamping drive component is fixedly connected to the frame, and the output end of the clamping drive component is drivenly connected to the clamping plate. The clamping drive component is used to provide power for the clamping plate to move closer to or away from the barrel. The lifting drive component is fixedly connected to the frame, and the output end of the lifting drive component is drivenly connected to the mounting frame. The lifting drive provides power for the lifting and moving of the mounting frame. The heating belt is arranged between two clamping plates. The end of the heating belt is fixedly connected to the heating block on its side. The heating belt is used to heat the solid MDI in the barrel. The cover plate is used to cover the top of the barrel. The cover plate is fixedly connected to the mounting frame. The cover plate is located above the clamping plates. The output pipe and the input pipe are both arranged on the cover plate. The output pipe is used to supply liquid MDI output, and the input pipe is used to supply nitrogen input. The clamping plate is attached to the barrel wall to fix the heating belt, realizing all-round contact heating and avoiding local overheating or unmelted areas. Through the arrangement of the cover plate, input pipe and output pipe, pneumatic pumping is realized to increase the output efficiency of liquid MDI.

[0005] When the cover is placed on the barrel, the input end of the output tube extends to the bottom of the barrel, and the output end of the input tube extends to the top of the barrel.

[0006] To address the issue of uneven heating or barrel wobbling caused by the small contact area between the clamping plate and the barrel wall, a further improvement is made, incorporating an arc-shaped clamping plate with a curvature matching that of the barrel's outer wall.

[0007] To address the issue of the cover plate easily shifting during lifting, affecting sealing, the system further includes a mounting bracket and a frame that are slidably connected. The frame has a slide rail extending vertically, and the mounting bracket has a groove that matches the slide rail. The slide rail is slidably arranged within the groove.

[0008] To address the issue of rigid output pipes failing to conform to the curved surface of the barrel, resulting in pump residue, the system further includes an output pipe comprising a rigid section and a flexible section. The rigid section is fixedly connected to the cover plate, and the beginning of the flexible section is fixedly connected to the end of the rigid section. The flexible section is used to contact the inner bottom surface of the barrel.

[0009] To address the issues of high impact force during barrel placement affecting device lifespan and lack of MDI flow change within the barrel during heating, a further improvement is made, including an elastic connection between the placement base and the frame, with elastic elements arranged between the placement base and the frame.

[0010] Further, it includes a limit post protruding on the frame, a limit groove matching the limit post on the bottom surface of the placement seat, the limit post being arranged in the limit groove, and an elastic element being sleeved on the limit post.

[0011] The beneficial effects of this utility model are: The utility model provides a barrel-type MDI heating pump device, in which the clamping plate is attached to the barrel wall to fix the heating belt, so as to realize all-round contact heating and avoid local overheating or unmelted areas. Through the arrangement of the cover plate, input pipe and output pipe, pneumatic pumping is realized, increasing the output efficiency of liquid MDI. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 is a structural schematic diagram of this utility model;

[0014] Figure 2 is a top view of the clamping plate of this utility model.

[0015] Figure 3 is a structural schematic diagram of this utility model;

[0016] Figure 4 is a structural schematic diagram of this utility model.

[0017] In the diagram: 1. Frame, 11. Slide rail, 12. Elastic element, 13. Limiting post, 2. Placement seat, 21. Limiting groove, 3. Heating pump mechanism, 31. Mounting bracket, 32. Heating belt, 33. Lifting drive component, 34. Cover plate, 35. Output pipe, 351. Rigid section, 352. Flexible section, 36. Input pipe, 37. Clamping drive component, 38. Clamping plate. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0019] Figure 1 is a schematic diagram of the structure of this utility model. A barrel-type MDI heating pump device includes a frame 1, a placement seat 2, and a heating pump mechanism 3. The placement seat 2 is used for placing the barrel and is arranged on the frame 1. The heating pump mechanism 3 is arranged on the frame 1 and includes a mounting frame 31, a heating belt 32, a lifting drive component 33, a cover plate 34, an output pipe 35, an input pipe 36, a clamping drive component 37, and a clamping plate 38. The clamping drive component 37 is fixedly connected to the frame 1, and the output end of the clamping drive component 37 is drively connected to the clamping plate 38. The clamping drive component 37 is used to provide power for the clamping plate 38 to move closer to or away from the barrel. The lifting drive component 33 can be a power element such as a cylinder, a hydraulic cylinder, or a screw mechanism. The lifting drive component 33 is fixedly connected to the frame 1. The output end of the lifting drive 33 is connected to the mounting frame 31. The lifting drive 33 provides power for the lifting and moving of the mounting frame 31. The heating belt 32 is arranged between the two clamping plates 38. The end of the heating belt 32 is fixedly connected to the heating block on its side. The heating belt 32 is used to heat the solid MDI in the barrel. The cover plate 34 is used to cover the top of the barrel. The cover plate 34 is fixedly connected to the mounting frame 31. The cover plate 34 is located above the clamping plate 38. The output pipe 35 and the input pipe 36 are both arranged on the cover plate 34. The output pipe 35 is used to supply liquid MDI output, and the input pipe 36 is used to supply nitrogen input. The clamping plate 38 is attached to the barrel wall to fix the heating belt, realizing all-round contact heating and avoiding local overheating or unmelted areas. Through the arrangement of the cover plate 34, the input pipe 36 and the output pipe 35, pneumatic pumping is realized to increase the output efficiency of liquid MDI.

[0020] When the cover plate 34 is placed over the barrel, the input end of the output pipe 35 extends to the bottom of the barrel, and the output end of the input pipe 36 extends to the upper part of the barrel.

[0021] As shown in Figure 2, the clamping plate 38 has an arc-shaped structure. The curvature of the clamping plate 38 matches that of the outer wall of the barrel. The arc-shaped clamping plate 38 increases the contact area, improves the heating uniformity and the stability of the barrel.

[0022] As shown in Figure 1, the mounting bracket 31 and the frame 1 are slidably connected. The frame 1 has a slide rail 11 extending vertically, and the mounting bracket 31 has a slide groove that matches the slide rail 11. The slide rail 11 is slidably arranged in the slide groove. The slide rail 11 and the slide groove cooperate to ensure that the mounting bracket 31 moves vertically and accurately positions the cover plate 34.

[0023] As shown in Figure 1, the output tube 35 includes a rigid section 351 and a flexible section 352. The rigid section 351 is fixedly connected to the cover plate 34. The first end of the flexible section 352 is fixedly connected to the tail end of the rigid section 351. The flexible section 352 is used to contact the inner bottom surface of the barrel. The flexible section 352 adapts to the shape of the barrel bottom to reduce the amount of liquid MDI residue.

[0024] As shown in Figures 3 and 4, the placement seat 2 and the frame 1 are elastically connected. An elastic element 12 is arranged between the placement seat 2 and the frame 1. On the one hand, the elastic element 12 can buffer the impact and protect the structural stability of the frame 1. On the other hand, during the heating process, under the force and release of the lifting drive 33, the barrel containing MDI can move up and down, thereby applying force to the MDI in the barrel, causing the MDI in the barrel to flow, so that the solid MDI can contact or approach the inner wall of the barrel. With the cooperation of the elastic element 12, the barrel and the cover plate 12 can be fitted together to avoid affecting the sealing and causing gas leakage.

[0025] A limiting post 13 protrudes from the frame 1, and a limiting groove 21 matching the limiting post 13 is opened on the bottom surface of the placement seat 2. The limiting post 13 is arranged in the limiting groove 21, and the elastic element 12 is sleeved on the limiting post 13. The limiting post 13 can increase the guiding function on the one hand, and provide the limiting function on the other hand, to avoid excessive compression of the elastic element 12, which would cause the elastic element 12 to fail.

[0026] Working process: The barrel containing solid MDI is placed on the elastic placement seat 2, and the limiting post 13 cooperates with the limiting groove 21 to prevent displacement; the clamping drive 37 drives the arc-shaped clamping plate 38 to clamp the barrel from both sides, ensuring that the heating band 32 is in close contact with the barrel wall; the lifting drive 33 drives the mounting frame 31 to descend along the slide rail 11, so that the cover plate 34 covers the barrel opening, the flexible section 352 of the output pipe 35 contacts the bottom of the barrel, and the input pipe 36 extends to the upper part of the barrel; the heating band 32 is energized to heat and melt the solid MDI, nitrogen gas is pressurized through the input pipe 36, and liquid MDI is pumped out through the output pipe 35 to ensure complete suction; during the pumping and pressurization process, the lifting drive 33 applies pressure to the barrel and releases it, causing the barrel to move up and down repeatedly, making the MDI in the barrel shake, changing the distribution of solid MDI and liquid MDI, increasing heating efficiency and heating uniformity; after the pumping is completed, the lifting drive 33 raises the cover plate 34, the clamping plate 38 is released, and the empty barrel is removed.

[0027] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A heating pump device for bottled MDI, characterized in that, The device includes a frame (1), a placement seat (2), and a heating pump mechanism (3). The placement seat (2) is used for placing the bucket and is arranged on the frame (1). The heating pump mechanism (3) is arranged on the frame (1) and includes a mounting frame (31), a heating belt (32), a lifting drive (33), a cover plate (34), an output pipe (35), an input pipe (36), a clamping drive (37), and a clamping plate (38). The clamping drive (37) is fixedly connected to the frame (1), and the output end of the clamping drive (37) is drivenly connected to the clamping plate (38). The clamping drive (37) is used to provide power for the clamping plate (38) to move closer to or away from the bucket. The lifting drive (33) is fixedly connected to the frame (1), and the output end of the lifting drive (33) is drivenly connected to the mounting frame (31). The lifting drive (33) is used to provide power for the lifting and moving of the mounting frame (31). The heating belt (32) is arranged between two clamping plates (38). The end of the heating belt (32) is fixedly connected to the heating block on its side. The heating belt (32) is used to heat the solid MDI in the barrel. The cover plate (34) is used to cover the top of the barrel. The cover plate (34) is fixedly connected to the mounting frame (31). The cover plate (34) is located above the clamping plate (38). The output pipe (35) and the input pipe (36) are both arranged on the cover plate (34). The output pipe (35) is used to supply liquid MDI output. The input pipe (36) is used to supply nitrogen input. When the cover plate (34) is covering the barrel, the input end of the output pipe (35) extends to the bottom of the barrel. The output end of the input pipe (36) extends to the upper part of the barrel.

2. The barrel-packaged MDI heating pump device as described in claim 1, characterized in that: The clamping plate (38) has an arc-shaped structure, and the curvature of the clamping plate (38) matches that of the outer wall of the barrel.

3. The barrel-type MDI heating pump device as described in claim 1, characterized in that: The mounting bracket (31) and the frame (1) are slidably connected. The frame (1) has a slide rail (11) extending vertically. The mounting bracket (31) has a slide groove that matches the slide rail (11). The slide rail (11) is slidably arranged in the slide groove.

4. The barrel-type MDI heating pump device as described in claim 1, characterized in that: The output pipe (35) includes a rigid section (351) and a flexible section (352). The rigid section (351) and the cover plate (34) are fixedly connected. The first end of the flexible section (352) and the tail end of the rigid section (351) are fixedly connected. The flexible section (352) is used to contact the inner bottom surface of the barrel.

5. The barrel-type MDI heating pump device as described in claim 1, characterized in that: The placement seat (2) and the frame (1) are elastically connected, and an elastic element (12) is arranged between the placement seat (2) and the frame (1).

6. The barrel-packaged MDI heating pump device as described in claim 5, characterized in that: The frame (1) has a protruding limiting post (13), and the bottom surface of the placement seat (2) has a limiting groove (21) that matches the limiting post (13). The limiting post (13) is arranged in the limiting groove (21), and the elastic element (12) is sleeved on the limiting post (13).

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