Air leakage prevention structure for cracking

Abstract

The utility model relates to the technical field of tire recovery, in particular to an air leakage prevention structure for cracking, which comprises a main body, a discharge port is integrally formed at the bottom of the right end of the main body, a blanking pipeline is integrally formed at the top of the main body, and a storage box is integrally formed at the upper end of the blanking pipeline. According to the device, the movement of the sealing piston and the movement of the propelling piston are linked by driving components such as a hydraulic cylinder, so that the sealing piston and the propelling piston can be driven by using one driving piece; and moreover, the rubber particles can be pressed through the material pressing piston, the inclined feeding opening can be closed, and smoke generated by cracking of the cracking equipment is prevented from flowing back through the discharging opening and leaking through the inclined feeding opening.

Description

Technical Field

[0001] The utility model relates to the technical field of tire recycling, in particular to an anti-leakage structure for cracking. Background Art

[0002] In the existing technology, the pyrolysis of waste tires generally involves first using a crushing process to process the waste tires into rubber particles, which are then placed in a pyrolysis furnace for pyrolysis. If the airtightness is poor, air will enter the pyrolysis furnace and cause combustion. In addition to the loss of product oil and carbon black production, high heat and a large amount of gas will also be generated, which will damage the equipment and create operational safety issues. At the same time, the leakage of exhaust gas from the furnace will also cause environmental problems such as exhaust gas pollution. The pyrolysis of waste tires will produce flammable oil, gas and carbon black, which will pose a danger to the production process. Therefore, it is necessary to ensure the sealing of the feeding device. The existing application is CN201920441558.1, which is a leak-proof tire pyrolysis feeding device, including a main body, the upper end of which is a feed port... The tire rubber particles are squeezed by a material propulsion mechanism, so that the rubber particles form a sufficiently tight rubber extrusion layer inside the device, so that the discharge port is well sealed from the outside world. The sealing mechanism uses its sealing piston to keep the feed port well sealed from the outside world, so that the entire device has good sealing properties. However, this device not only requires two driving parts to drive the sealing piston and the material pushing piston respectively, but also the sealing piston is in an open state when feeding, so air can easily enter and exhaust gas can leak. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of the prior art that not only two driving parts are needed to drive the sealing piston and the material pushing piston respectively, but also the sealing piston is in an open state when feeding, air can easily enter and exhaust gas can leak. A gas leakage prevention structure for cracking is proposed.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A gas leakage prevention structure for cracking is designed, including a main body, a discharge port is integrally formed at the bottom right end of the main body, a blanking pipe is integrally formed at the top of the main body, and a storage box is integrally formed at the upper end of the blanking pipe, and an oblique feed port is integrally formed on the right end face of the storage box, a sealing piston is slidably provided inside the blanking pipe through a limiting structure, a thrust piston is slidably provided inside the left end of the main body, and a pressing piston is slidably provided inside the storage box through a driving device, a driving member is fixedly installed on the left end face of the main body, and a telescopic rod of the driving member passes through the main body and is fixedly connected to the thrust piston, a socket is provided at the bottom of the pressing piston, and a limiting tube with an inner chamfer on the top is inserted into the socket, the lower end of the limiting tube is fixedly connected to the sealing piston, a spring is provided inside the limiting tube, and the upper and lower ends of the spring are respectively fixedly connected to the pressing piston and the sealing piston.

[0006] Preferably, the outer walls of the sealing piston, the pressing piston and the advancing piston are respectively provided with sealing rings.

[0007] Preferably, the limiting structure includes a pair of clamping strips arranged on the left and right sides, the clamping strips are fixed on the left and right inner walls of the blanking pipe, and the top of the clamping strips is provided with a chamfer to facilitate the falling of the material, and the bottom of the clamping strips abuts the sealing piston.

[0008] Preferably, the bottom of the clamping strip is provided with a chamfer that matches the blanking slope.

[0009] Preferably, the driving device includes a lifting hydraulic cylinder, a first driving plunger, a top plate, and a column. The left end face of the storage box is fixedly provided with a lifting hydraulic cylinder, and the lower end of the lifting hydraulic cylinder is connected to the hydraulic structure controlled by the thrust piston. The first driving plunger is inserted into the interior of the lifting hydraulic cylinder, and the upper end of the first driving plunger is fixedly provided with a top plate, the right end of the top plate is fixedly connected to the column, and the lower end of the column passes through the top of the storage box and is fixedly connected to the pressing piston.

[0010] Preferably, the hydraulic structure includes a second driving plunger, a pipeline, and a driving hydraulic cylinder. A driving hydraulic cylinder is fixed to the top of the left end of the main body, and a second driving plunger is inserted into the interior of the driving hydraulic cylinder. The left end of the second driving plunger is connected to the thrust piston through a connecting structure, and the end of the driving hydraulic cylinder away from the second driving plunger is connected to the lifting hydraulic cylinder through a pipeline.

[0011] Preferably, the connection structure includes a slider and a limiting groove. A limiting groove located above the thrust piston is opened on the top of the left end of the main body, and a slider is slidably provided inside the limiting groove. The right end face of the slider is fixedly connected to the second driving piston.

[0012] The utility model provides a gas leakage prevention structure for cracking, which has the beneficial effect that: the device drives the hydraulic cylinder and other components to link the movement of the sealing piston and the propulsion piston, not only achieving the goal of using only one driving component to drive the sealing piston and the propulsion piston, but also effectively avoiding the mutual interference between the lifting and lowering of the sealing piston and the movement of the propulsion piston. In addition, the pressing piston can not only press the rubber particles, but also seal the oblique feed port, thereby preventing the flue gas generated by the cracking of the cracking equipment from flowing back through the discharge port and leaking through the oblique feed port. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of a gas leakage prevention structure for cracking proposed by the utility model;

[0014] Figure 2 This is an enlarged view of area A of a gas leakage prevention structure for cracking proposed by the present invention;

[0015] Figure 3 This is an enlarged view of area B of a gas leakage prevention structure for cracking proposed by the present invention;

[0016] Figure 4 This is a schematic diagram of the cross-section structure of a gas leakage prevention structure for cracking proposed by the utility model;

[0017] Figure 5 This is a schematic diagram of the limiting groove structure of a cracking anti-leakage structure proposed by the utility model.

[0018] In the figure: 1. Driving part; 2. Main body; 3. Blanking pipe; 4. Storage box; 5. Oblique feed port; 6. Top plate; 7. First driving plunger; 8. Lifting hydraulic cylinder; 9. Column; 10. Discharge port; 11. Pipeline; 12. Driving hydraulic cylinder; 14. Slider; 15. Limiting groove; 16. Pushing piston; 17. Second driving plunger; 18. Sealing piston; 19. Card bar; 20. Blanking slope; 21. Spring; 22. Socket; 23. Pressing piston; 24. Limiting tube. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figure 1-5, a gas leakage prevention structure for cracking, comprising a main body 2, a discharge port 10 is integrally formed at the bottom right end of the main body 2, a blanking pipe 3 is integrally formed at the top of the main body 2, and a storage box 4 is integrally formed at the upper end of the blanking pipe 3, and an oblique feed port 5 is integrally formed at the right end face of the storage box 4, a sealing piston 18 is slidably provided inside the blanking pipe 3 through a limiting structure, a propulsion piston 16 is slidably provided inside the left end of the main body 2, and a pressing piston 23 is slidably provided inside the storage box 4 through a driving device, a driving member 1 is fixedly installed on the left end face of the main body 2, and the telescopic rod of the driving member 1 passes through the main body 2 and is fixedly connected to the propulsion piston 16, a socket 22 is provided at the bottom of the pressing piston 23, and a limiting tube 24 with an inner chamfer at the top is inserted into the socket 22, the lower end of the limiting tube 24 is fixedly connected to the sealing piston 18, a spring 21 is provided inside the limiting tube 24, and the upper and lower ends of the spring 21 are fixedly connected to the pressing piston 23 and the sealing piston 18 respectively.

[0021] Reference Figure 1-5 In order to improve the sealing performance, sealing rings are respectively provided on the outer walls of the sealing piston 18, the pressing piston 23 and the pushing piston 16.

[0022] Reference Figure 4 In order to clamp the sealing piston 18 so that it remains in the blanking pipe 3 and does not continue to rise with the pressing piston 23 when the pressing piston 23 drives the sealing piston 18 to rise through the spring 21, the limiting structure includes a pair of left and right clamping strips 19. The clamping strips 19 are fixed on the inner walls of the left and right sides of the blanking pipe 3, and the top of the clamping strip 19 is provided with a chamfer to facilitate the falling of the material, and the bottom of the clamping strip 19 abuts against the sealing piston 18.

[0023] Reference Figure 4 In order to prevent the material from entering between the card strip 19 and the blanking slope 20 and to improve the sealing performance, the bottom of the card strip 19 is provided with a chamfer that matches the blanking slope 20.

[0024] Reference Figure 1-5 In order to drive the lifting, the driving device includes a lifting hydraulic cylinder 8, a first driving plunger 7, a top plate 6, and a column 9. The left end face of the storage box 4 is fixedly provided with a lifting hydraulic cylinder 8, and the lower end of the lifting hydraulic cylinder 8 is connected to the hydraulic structure controlled by the thrust piston 16. The first driving plunger 7 is inserted into the interior of the lifting hydraulic cylinder 8, and the upper end of the first driving plunger 7 is fixedly provided with a top plate 6. The right end of the top plate 6 is fixedly connected to the column 9, and the lower end of the column 9 passes through the top of the storage box 4 and is fixedly connected to the pressing piston 23.

[0025] Reference Figure 1-4In order to inject and extract hydraulic oil into the lifting hydraulic cylinder 8 to make the second driving plunger 17 rise and fall, the hydraulic structure includes the second driving plunger 17, a pipeline 11, and a driving hydraulic cylinder 12. The driving hydraulic cylinder 12 is fixed on the top of the left end of the main body 2, and the second driving plunger 17 is inserted into the inside of the driving hydraulic cylinder 12. The left end of the second driving plunger 17 is connected to the propulsion piston 16 through a connecting structure, and the end of the driving hydraulic cylinder 12 away from the second driving plunger 17 is connected to the lifting hydraulic cylinder 8 through a pipeline 11.

[0026] Reference Figure 1-5 In order to make the left and right movement of the propulsion piston 16 drive the movement of the second driving plunger 17 so as to squeeze the hydraulic oil into and out of the lifting hydraulic cylinder 8, the connecting structure includes a slider 14 and a limiting groove 15. A limiting groove 15 located above the propulsion piston 16 is opened at the top of the left end of the main body 2, and a slider 14 is slidably provided inside the limiting groove 15. The right end face of the slider 14 is fixedly connected to the second driving plunger 17.

[0027] Working principle: in the initial position, the pressing piston 23 is at the top, the sealing piston 18 is in the blanking pipe 3, and the pushing piston 16 is at the rightmost end of the stroke; rubber particles are injected into the storage box 4 through the oblique feed port 5, and the pushing piston 16 is driven to move left by the driving member 1 and the second driving plunger 17 is driven to move left by the slider 14 and the connecting plate 13 to suck the hydraulic oil out of the lifting hydraulic cylinder 8, so that the top plate 6 drives the pressing piston 23 to descend and close the oblique feed port 5 by the first driving plunger 7 column 9, and at the same time, the spring 21 is restored and continues to descend. In the process, the sealing piston 18 is driven to descend and open the blanking pipe 3, so that the rubber particles are pressed into the main body 2 by the pressing piston 23 and the smoke generated by the cracking equipment is prevented from flowing back through the discharge port 10 and The rubber particles leak through the oblique feed port 5, and at the same time, they enter the cracking equipment through the discharge port 10 for cracking; the driving member 1 drives the propulsion piston 16 to move right, and drives the second driving plunger 17 to move right through the slider 14, squeezing the hydraulic oil into the lifting hydraulic cylinder 8 so that the first driving plunger 7 drives the pressing piston 23 to rise and reset. During the rising process of the pressing piston 23, the spring 21 first drives the sealing piston 18 to rise. The sealing piston 18 rises and closes the blanking pipe 3, while the propulsion piston 16 continues to move right to squeeze the plastic particles, increasing the air pressure in the device. At this time, the rubber particles in the device will be squeezed into a tight rubber layer due to the elasticity of the rubber itself, thereby ensuring the air tightness of the device and pushing out the rubber particles near the discharge port to complete the discharge.

[0028] The device drives the hydraulic cylinder 12 and other components to link the movement of the sealing piston 18 and the propulsion piston 16. Not only can the sealing piston 18 and the propulsion piston 16 be driven by a single driving member 1, but the lifting and lowering of the sealing piston 18 and the movement of the propulsion piston 16 can also be effectively avoided. In addition, the pressing piston 23 can not only press the rubber particles, but also seal the oblique feed port 5, thereby preventing the flue gas generated by the cracking equipment from flowing back through the discharge port 10 and leaking through the oblique feed port 5.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gas leakage prevention structure for cracking, comprising a main body (2), characterized in that: The right end bottom of the main body (2) is integrally formed with a discharge port (10), the top of the main body (2) is integrally formed with a blanking pipe (3), and the upper end of the blanking pipe (3) is integrally formed with a storage box (4), the right end face of the storage box (4) is integrally formed with an oblique feed port (5), the interior of the blanking pipe (3) is provided with a sealing piston (18) that slides through a limiting structure, the interior of the left end of the main body (2) is provided with a push piston (16) that slides, and the interior of the storage box (4) is provided with a pressing piston (23) that slides through a driving device. A driving member (1) is fixedly mounted on the left end face of the main body (2), and a telescopic rod of the driving member (1) passes through the main body (2) and is fixedly connected to the pushing piston (16). A socket (22) is provided at the bottom of the pressing piston (23), and a limiting tube (24) with an inner chamfered top is inserted into the inside of the socket (22). The lower end of the limiting tube (24) is fixedly connected to the sealing piston (18). A spring (21) is provided inside the limiting tube (24), and the upper and lower ends of the spring (21) are fixedly connected to the pressing piston (23) and the sealing piston (18) respectively.

2. A gas leakage preventing structure for cracking according to claim 1, characterized in that: The outer walls of the sealing piston (18), the pressing piston (23) and the pushing piston (16) are respectively provided with sealing rings.

3. A gas leakage prevention structure for cracking according to claim 1, characterized in that: The limiting structure includes a pair of clamping strips (19) arranged on the left and right sides. The clamping strips (19) are fixed on the inner walls of the left and right sides of the material dropping pipe (3). The top of the clamping strips (19) is provided with a chamfer to facilitate the falling of the material. The bottom of the clamping strips (19) abuts against the sealing piston (18).

4. A gas leakage prevention structure for cracking according to claim 3, characterized in that: The bottom of the clamping strip (19) is provided with a chamfer that matches the blanking slope (20).

5. The gas leakage preventing structure for cracking according to claim 1, characterized in that: The driving device comprises a lifting hydraulic cylinder (8), a first driving plunger (7), a top plate (6), and a column (9); the left end surface of the material storage box (4) is fixedly provided with a lifting hydraulic cylinder (8), and the lower end of the lifting hydraulic cylinder (8) is connected to a hydraulic structure controlled by a thrust piston (16); the interior of the lifting hydraulic cylinder (8) is plugged with a first driving plunger (7), and the upper end of the first driving plunger (7) is fixedly provided with a top plate (6); the right end of the top plate (6) is fixedly connected to the column (9), and the lower end of the column (9) passes through the top of the material storage box (4) and is fixedly connected to the pressing piston (23).

6. A gas leakage preventing structure for cracking according to claim 5, characterized in that: The hydraulic structure comprises a second driving plunger (17), a pipeline (11), and a driving hydraulic cylinder (12). The driving hydraulic cylinder (12) is fixedly provided on the top of the left end of the main body (2), and the second driving plunger (17) is inserted into the interior of the driving hydraulic cylinder (12). The left end of the second driving plunger (17) is connected to the propulsion piston (16) through a connecting structure. The end of the driving hydraulic cylinder (12) away from the second driving plunger (17) is connected to the lifting hydraulic cylinder (8) through the pipeline (11).

7. The gas leakage preventing structure for cracking according to claim 6, characterized in that: The connection structure comprises a slider (14) and a limiting groove (15). The limiting groove (15) located above the propulsion piston (16) is provided at the top of the left end of the main body (2). The slider (14) is slidably provided inside the limiting groove (15). The right end surface of the slider (14) is fixedly connected to the second driving plunger (17).

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