Pneumatic conveying device using polyurethane waste for cement kiln

By setting up rubber rods and auxiliary pipes in the pneumatic conveying device of the cement kiln, and using a motor to drive the conveying pipe to vibrate, combined with the blowing function of the second blower, the problem of polyurethane waste accumulation and blockage is solved, and the feeding efficiency and service life of the conveying pipe are improved.

CN222757495UActive Publication Date: 2025-04-15LIN YI GUO JIAN ENVIRONMENTAL SCI & TECH CO LTD
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Patent Information

Application Number
CN202421569550.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-04
Publication Date
2025-04-15
Estimated Expiration
2034-07-04

AI Technical Summary

Technical Problem

When existing cement kilns use polyurethane waste for pneumatic transport, they are prone to accumulate at the initial position of the conveying pipe, resulting in blockage and affecting the feeding efficiency.

Method used

A pneumatic conveying device is designed. By setting a rubber rod and an auxiliary pipe in the conveying pipe, and using a motor to drive the turntable and the fixing rod to rotate, the guide rod slides in the fixing frame, and hits the conveying pipe to generate vibration and remove the accumulated polyurethane waste. At the same time, the second blower is used to blow waste through the air inlet duct to avoid friction and blockage.

Benefits of technology

It effectively avoids the blockage of polyurethane waste in the conveying pipe, improves the feeding efficiency, extends the service life of the conveying pipe, and prevents waste from entering the unused air inlet duct through the dustproof net.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222757495U_ABST
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Abstract

The utility model discloses a pneumatic conveying device using polyurethane waste for a cement kiln, which relates to the technical field of pneumatic conveying and comprises a fixing plate, supporting rods are fixedly arranged on the bottom surface of the fixing plate, connecting plates are fixedly arranged between the supporting rods, a sleeve is fixedly arranged between the connecting plates in a penetrating manner, and the fixing plate is fixedly connected with the fixing plate. A conveying pipe is fixedly arranged in the sleeve, a positioning plate is fixedly arranged between the supporting rods, a fixing frame is fixedly arranged at the bottom end of the positioning plate, a guide rod penetrates through the fixing frame in a sliding mode, and by starting the motor, the rotating disc rotates and drives the fixing rod to rotate in the guide rail, and meanwhile the guide rod slides in the fixing frame in a reciprocating mode; and a connecting rod is driven to move, so that a rubber rod is inserted into an auxiliary pipe, and a conveying pipe is knocked, so that the conveying pipe vibrates, polyurethane waste accumulated in the conveying pipe can be blown when a first air blower is started, and the situation that feeding cannot be conducted due to blockage of the polyurethane waste, and the feeding efficiency is affected is avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic conveying, in particular to a pneumatic conveying device for utilizing polyurethane waste in a cement kiln. Background Art

[0002] Pneumatic conveying, also known as air flow conveying, uses the energy of air flow to convey granular materials along the air flow direction in a closed pipe. It is a specific application of fluidization technology. The pneumatic conveying device has a simple structure and is easy to operate. It can be used for horizontal, vertical or inclined conveying. During the conveying process, physical operations such as heating, cooling, drying and air flow classification of materials or certain chemical operations can also be performed simultaneously.

[0003] However, when the existing cement kiln uses polyurethane waste for transportation, the material is first discharged into the conveying pipe through the discharge pipe under the material box. When the material is discharged and transported, it is easy to accumulate at the initial position of the conveying pipe, causing blockage at the initial position of the conveying pipe. When the blower is turned on, the blocked polyurethane waste cannot be blown away, thereby affecting the feeding efficiency. In view of the above problems, the inventor proposes a pneumatic conveying device for using polyurethane waste in a cement kiln to solve the above problems. Utility Model Content

[0004] In order to solve the problem that the polyurethane waste is easily accumulated at the initial position of the conveying pipe during unloading and conveying, resulting in blockage at the initial position of the conveying pipe, so that the blocked polyurethane waste cannot be blown away when the blower is turned on; the purpose of the utility model is to provide a pneumatic conveying device for utilizing polyurethane waste in a cement kiln.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme: a pneumatic conveying device for polyurethane waste in a cement kiln, comprising a fixed plate, a support rod is fixedly arranged on the bottom surface of the fixed plate, a connecting plate is fixedly arranged between the support rods, a sleeve is fixedly passed through between the connecting plates, a conveying pipe is fixedly arranged in the sleeve, a positioning plate is fixedly arranged between the support rods, a fixed frame is fixedly arranged on the bottom end of the positioning plate, a guide rod slides through the fixed frame, a connecting rod is fixedly arranged on the bottom surface of the guide rod, a rubber rod is fixedly arranged on one side of the connecting rod, and the rubber rod is slidably inserted in the sleeve, a motor is installed on the top surface of the positioning plate, a turntable is fixedly arranged on the output end of the motor, a fixed rod is fixedly arranged on the bottom end of the turntable, guide rails are fixedly arranged between the guide rods, The fixed rod is slidably arranged in the guide rail, an auxiliary pipe is fixedly arranged on the outer surface of the sleeve, and the rubber rod is slidably inserted in the auxiliary pipe. First, the polyurethane waste can be poured into the material box through the feed port, and then the solenoid valve is opened, so that the feed pipe conveys the polyurethane waste to the conveying pipe, and then the first blower is turned on, so that the connecting pipe blows air into the conveying pipe, and then the conveying can be carried out. By turning on the motor, the turntable rotates and drives the fixed rod to rotate in the guide rail. At the same time, the guide rod reciprocates in the fixed frame and drives the connecting rod to move, so that the rubber rod is inserted in the auxiliary pipe and knocks the conveying pipe to make the conveying pipe vibrate, so that the polyurethane waste accumulated in the conveying pipe can be blown when the first blower is turned on, so as to avoid the blockage of the polyurethane waste and the inability to feed, which affects the feeding efficiency;

[0006] By turning on the second blower, the blowing pipe blows air into the casing, and then the polyurethane waste in the conveying pipe is blown through the set air inlet pipe, so as to avoid the polyurethane waste rubbing against the conveying pipe during transportation, thereby reducing the service life of the conveying pipe and playing an auxiliary transportation role, thereby avoiding the polyurethane waste from clogging the set dustproof net, thereby preventing the polyurethane waste from entering the air inlet pipe when not in use.

[0007] Preferably, a mounting plate is fixedly connected between the support rods, a second blower is installed on the top surface of the mounting plate, one end of the second blower is fixedly connected to a blowing pipe, the blowing pipe is fixedly arranged in the sleeve, a support plate is fixedly arranged on the outer surface of the delivery pipe, the other end of the support plate is fixedly arranged in the sleeve, an air inlet pipe is fixedly arranged in the delivery pipe, and a dust net is installed in the air inlet pipe.

[0008] Preferably, a material box is fixedly provided inside the fixed plate, a feed port is fixedly provided on the top surface of the material box, a discharge pipe is fixedly provided at the bottom end of the material box, an electromagnetic valve is installed on the outer surface of the discharge pipe, one end of the discharge pipe is inserted in the sleeve, and the discharge pipe and the conveying pipe are connected to each other.

[0009] Preferably, a transverse plate is fixedly provided on one side of the support rod, a first blower is installed on the top surface of the transverse plate, a connecting pipe is fixedly provided on one side of the first blower, the other end of the connecting pipe is inserted into the sleeve, and the connecting pipe and the conveying pipe are interconnected.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. In the utility model, the motor is turned on to rotate the turntable, and the fixed rod is driven to rotate in the guide rail. At the same time, the guide rod reciprocates in the fixed frame and drives the connecting rod to move, so that the rubber rod is inserted into the auxiliary pipe and knocks the conveying pipe to vibrate the conveying pipe, so that the polyurethane waste accumulated in the conveying pipe can be blown away when the first blower is turned on, thereby avoiding the blockage of the polyurethane waste and the inability to feed the material, which affects the feeding efficiency;

[0012] 2. In the utility model, by turning on the second blower, the air is blown into the sleeve by the blowing pipe, and then the polyurethane waste in the conveying pipe is blown through the set air inlet pipe, so as to avoid the polyurethane waste rubbing against the conveying pipe during transportation, thereby reducing the service life of the conveying pipe and playing an auxiliary transportation role, thereby avoiding the polyurethane waste from clogging the set dustproof net, thereby preventing the polyurethane waste from entering the air inlet pipe when not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the positioning plate of the utility model;

[0016] Figure 3 This is a schematic diagram of the partial cross-sectional structure of the casing of the utility model;

[0017] Figure 4 This is a partial cross-sectional structural diagram of the air inlet pipe of the utility model;

[0018] Figure 5 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0019] In the figure: 1. fixing plate; 11. supporting rod; 12. material box; 13. feeding port; 14. feeding pipe; 15. solenoid valve; 16. mounting plate; 17. connecting plate; 18. horizontal plate; 19. first blower; 191. connecting pipe; 2. positioning plate; 21. motor; 22. turntable; 23. fixing rod; 24. guide rail; 25. fixing frame; 26. guide rod; 27. connecting rod; 28. rubber rod; 3. sleeve; 31. auxiliary pipe; 32. conveying pipe; 33. supporting plate; 34. air inlet pipe; 35. second blower; 36. blowing pipe; 37. dust net. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example: Figure 1-5 As shown, the utility model provides a pneumatic conveying device for utilizing polyurethane waste in a cement kiln, comprising a fixed plate 1, a support rod 11 is fixedly arranged on the bottom surface of the fixed plate 1, a connecting plate 17 is fixedly arranged between the support rods 11, a sleeve 3 is fixedly penetrated between the connecting plates 17, a conveying pipe 32 is fixedly arranged in the sleeve 3, a positioning plate 2 is fixedly arranged between the support rods 11, a fixed frame 25 is fixedly arranged on the bottom end of the positioning plate 2, a guide rod 26 is slidably penetrated in the fixed frame 25, a connecting rod 27 is fixedly arranged on the bottom surface of the guide rod 26, a rubber rod 28 is fixedly arranged on one side of the connecting rod 27, and the rubber rod 28 is slidably inserted in the sleeve 3, a motor 21 is installed on the top surface of the positioning plate 2, a turntable 22 is fixedly arranged on the output end of the motor 21, and a rotating disk 22 is fixedly arranged on the output end of the motor 21. A fixing rod 23 is fixedly provided at the bottom end of the disk 22, and a guide rail 24 is fixedly provided between the guide rods 26. The fixing rod 23 is slidably provided in the guide rail 24. An auxiliary tube 31 is fixedly provided on the outer surface of the sleeve 3, and the rubber rod 28 is slidably inserted in the auxiliary tube 31. By turning on the motor 21, the turntable 22 rotates, and drives the fixing rod 23 to rotate in the guide rail 24. At the same time, the guide rod 26 reciprocates in the fixed frame 25, and drives the connecting rod 27 to move, so that the rubber rod 28 is inserted in the auxiliary tube 31 and knocks the conveying tube 32 to make the conveying tube 32 vibrate, so that the polyurethane waste accumulated in the conveying tube 32 can be blown away when the first blower 19 is turned on, so as to avoid the blockage of the polyurethane waste and the inability to deliver the material, thereby affecting the delivery efficiency.

[0022] A mounting plate 16 is fixedly connected between the support rods 11, a second blower 35 is installed on the top surface of the mounting plate 16, one end of the second blower 35 is fixedly connected to a blowing pipe 36, the blowing pipe 36 is fixedly arranged in the sleeve 3, a support plate 33 is fixedly arranged on the outer surface of the delivery pipe 32, the other end of the support plate 33 is fixedly arranged in the sleeve 3, an air inlet pipe 34 is fixedly arranged in the delivery pipe 32, and a dustproof net 37 is installed in the air inlet pipe 34.

[0023] By adopting the above technical solution, the second blower 35 is turned on, so that the blowing pipe 36 blows air into the sleeve 3, and then the polyurethane waste in the conveying pipe 32 is blown through the set air inlet pipe 34, so as to avoid the polyurethane waste rubbing against the conveying pipe 32 during transportation, thereby reducing the service life of the conveying pipe 32 and playing an auxiliary transportation role, thereby avoiding the polyurethane waste from clogging the set dustproof net 37, thereby preventing the polyurethane waste from entering the air inlet pipe 34 when not in use.

[0024] A material box 12 is fixedly provided in the fixed plate 1, a feed port 13 is fixedly provided on the top surface of the material box 12, a feed pipe 14 is fixedly provided at the bottom end of the material box 12, a solenoid valve 15 is installed on the outer surface of the feed pipe 14, one end of the feed pipe 14 is inserted in the sleeve 3, and the feed pipe 14 and the conveying pipe 32 are connected to each other.

[0025] By adopting the above technical solution, the polyurethane waste can be poured into the material box 12 through the feed port 13, and then the solenoid valve 15 is opened, so that the discharge pipe 14 conveys the polyurethane waste to the conveying pipe 32 for further transportation.

[0026] A horizontal plate 18 is fixedly provided on one side of the support rod 11, a first blower 19 is installed on the top surface of the horizontal plate 18, a connecting pipe 191 is fixedly provided on one side of the first blower 19, the other end of the connecting pipe 191 is inserted into the sleeve 3, and the connecting pipe 191 and the conveying pipe 32 are interconnected.

[0027] By adopting the above technical solution, the first blower 19 is turned on so that the connecting pipe 191 blows air into the conveying pipe 32, thereby being able to convey the polyurethane waste.

[0028] Working principle: first, the polyurethane waste is poured into the material box 12 through the feed port 13, and then the solenoid valve 15 is opened, so that the discharge pipe 14 conveys the polyurethane waste to the conveying pipe 32, and then the first blower 19 is turned on, so that the connecting pipe 191 blows air into the conveying pipe 32, and then the conveying can be carried out. By turning on the motor 21, the turntable 22 rotates, and drives the fixed rod 23 to rotate in the guide rail 24, and at the same time, the guide rod 26 reciprocates in the fixed frame 25, and drives the connecting rod 27 to move, so that the rubber rod 28 is inserted into the auxiliary pipe 31, and knocks the conveying pipe 32, so that the conveying pipe 32 vibrates, so that the polyurethane waste accumulated in the conveying pipe 32 can be blown when the first blower 19 is turned on, avoiding the blockage of the polyurethane waste and the inability to deliver the material, which affects the feeding efficiency;

[0029] By turning on the second blower 35, the blowing pipe 36 blows air into the sleeve 3, and then the polyurethane waste in the conveying pipe 32 is blown through the set air inlet pipe 34, so as to avoid the polyurethane waste rubbing against the conveying pipe 32 during transportation, thereby reducing the service life of the conveying pipe 32 and playing an auxiliary transportation role, thereby avoiding the polyurethane waste from clogging the set dustproof net 37, thereby preventing the polyurethane waste from entering the air inlet pipe 34 when not in use.

[0030] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A pneumatic conveying device for a cement kiln using polyurethane waste, comprising a fixed plate (1), characterized in that: A support rod (11) is fixedly provided on the bottom surface of the fixing plate (1), a connecting plate (17) is fixedly provided between the support rods (11), a sleeve (3) is fixedly provided through the connecting plates (17), a conveying pipe (32) is fixedly provided in the sleeve (3), a positioning plate (2) is fixedly provided between the support rods (11), a fixing frame (25) is fixedly provided at the bottom end of the positioning plate (2), a guide rod (26) is slidably passed through the fixing frame (25), a connecting rod (27) is fixedly provided on the bottom surface of the guide rod (26), a rubber rod (28) is fixedly provided on one side of the connecting rod (27), and the rubber rod (28) is slidably inserted in the sleeve (3).

2. A pneumatic conveying device for utilizing polyurethane waste in a cement kiln as claimed in claim 1, characterized in that: A motor (21) is installed on the top surface of the positioning plate (2), a rotating disk (22) is fixedly provided at the output end of the motor (21), a fixing rod (23) is fixedly provided at the bottom end of the rotating disk (22), a guide rail (24) is fixedly provided between the guide rods (26), and the fixing rod (23) is slidably provided in the guide rail (24).

3. A pneumatic conveying device for utilizing polyurethane waste in a cement kiln as claimed in claim 1, characterized in that: An auxiliary tube (31) is fixedly provided on the outer surface of the sleeve (3), and the rubber rod (28) is slidably inserted in the auxiliary tube (31).

4. A pneumatic conveying device for utilizing polyurethane waste in a cement kiln as claimed in claim 1, characterized in that: A mounting plate (16) is fixedly connected between the support rods (11), a second blower (35) is installed on the top surface of the mounting plate (16), one end of the second blower (35) is fixedly connected to a blowing pipe (36), and the blowing pipe (36) is fixedly arranged in the sleeve (3).

5. A pneumatic conveying device for utilizing polyurethane waste in a cement kiln as claimed in claim 1, characterized in that: A support plate (33) is fixedly provided on the outer surface of the delivery pipe (32), and the other end of the support plate (33) is fixedly provided in the sleeve (3).

6. A pneumatic conveying device for utilizing polyurethane waste in a cement kiln as claimed in claim 1, characterized in that: An air inlet pipe (34) is fixedly arranged in the delivery pipe (32), and a dustproof net (37) is installed in the air inlet pipe (34).

7. A pneumatic conveying device for utilizing polyurethane waste in a cement kiln as claimed in claim 1, characterized in that: A material box (12) is fixedly provided inside the fixed plate (1), a feed port (13) is fixedly provided on the top surface of the material box (12), a feed pipe (14) is fixedly provided at the bottom end of the material box (12), an electromagnetic valve (15) is installed on the outer surface of the feed pipe (14), one end of the feed pipe (14) is inserted into the sleeve (3), and the feed pipe (14) and the conveying pipe (32) are interconnected.

8. A pneumatic conveying device for utilizing polyurethane waste in a cement kiln as claimed in claim 1, characterized in that: A transverse plate (18) is fixedly provided on one side of the support rod (11), a first blower (19) is installed on the top surface of the transverse plate (18), a connecting pipe (191) is fixedly provided on one side of the first blower (19), the other end of the connecting pipe (191) is inserted into the sleeve (3), and the connecting pipe (191) and the conveying pipe (32) are interconnected.