WO2015085662A1

WO2015085662A1 - Process and apparatus for scrap tire pyrolysis and material feeding

Info

Publication number: WO2015085662A1
Application number: PCT/CN2014/070317
Authority: WO
Inventors: 王新明; 牛斌; 牛晓璐
Original assignee: 王新明
Priority date: 2013-12-13
Filing date: 2014-01-08
Publication date: 2015-06-18
Also published as: CN103627422A; CN103627422B

Abstract

A process and apparatus for scrap tire pyrolysis and material feeding. The process employs a specific material-feeding apparatus to ensure that scrap tires are fed as whole tires in a sealed state into a pyrolysis chamber for pyrolysis. The apparatus comprises a fixed barrel-shaped housing (2). An inner barrel (3) is arranged within the housing (2). A rotary shaft (8) is arranged at the center of the inner barrel (3). The barrel wall of the inner barrel and the rotary shaft (8) are connected therebetween via spokes (6). At least one opening (4) is provided on the barrel wall of the inner barrel. A material chamber (10) is connected in the inner barrel inside each opening (4). Window I (5) and window II (9) corresponding to the inner barrel opening (4) are respectively provided on both left side and right side barrel walls of the housing (2). The process simplifies existing scrap tire pyrolysis process steps and implements truly whole-tire continuous pyrolysis of scrap tires.

Description

Waste tire cracking feeding process and equipment

Technical field

The invention relates to the field of chemical industry, and particularly provides a waste tire cracking feeding process and equipment, in particular to a waste tire whole tire cracking feeding process and equipment.

Background technique

It is well known that after the cracking of waste rubber, gasoline, diesel, carbon black and other products can be obtained, which not only finds a good solution for the disposal of waste tires generated by a large number of modern society, but also provides a new solution for resource reduction and energy shortage improvement. However, all the current waste rubber cracking is to first break the waste rubber into small pieces and then crack it. In the production process, additional tire crushing equipment is needed, which inevitably increases the production cost and production process. Therefore, the whole tire is cracked into rubber. The inevitable trend of cracking, in turn, from the technical problem of how to ensure that the whole tire cracking feed becomes the first crack of waste tires.

Summary of the invention

In view of the above problems, the present invention proposes an automatic feeding process and equipment for scrap tires to ensure that the used tires are automatically sent to the cracking chamber for cracking in the sealed state.

In order to shorten the cracking reaction time and ensure the cracking effect, the used tires are automatically sent to the cracking chamber for cracking after being preheated. The maximum temperature after the waste tires are preheated is 40 0 °C. Of course, the used tires can also be directly sent to the cracking warehouse without preheating, and the temperature of the used tires is the ambient temperature. The inventor can determine the preheating time according to the temperature when the waste tire enters the cracking bin. The longer the warming time, the higher the temperature when entering the cracking bin. In general, the warming time is 30s-2min.

In order to ensure the smooth completion of the above process, the present invention also provides a waste tire cracking and feeding device, which comprises a fixed drum-shaped outer casing, an inner cylinder is arranged in the outer casing, and the inner cylinder body is provided with a rotating shaft The inner cylinder wall and the rotating shaft are connected by spokes, and the inner cylinder body wall is provided with at least one opening, and the inner cylinder inside each opening is connected with a silo, and the left and right sides of the outer casing are respectively provided with a silo A window I and a window II corresponding to the opening of the inner cylinder; the outer casing is of a two-layer structure.

With this structure, it is only necessary to send the used tire to the window I away from the outer casing of the reactor, and the inner cylinder starts to rotate under the driving of the rotating shaft. When the inner cylinder rotates to make the opening correspond to the window I, the used tire After entering the silo through the opening, the silo continues to rotate with the inner cylinder. At this time, the shell of the outer casing acts as a closed opening to avoid leakage of the waste tire, and when the inner cylinder rotates to the opening of the silo connection When the window II on the other side of the casing corresponds, the used tire in the silo is discharged into the cracking chamber through the window II under the action of gravity.

The inner cylinder wall and the rotating shaft are connected by spokes, so that the inner cylinder can be rotated by the rotating shaft, and the spokes play a supporting role for the inner cylinder. In order to achieve the most stable effect, generally two of the rotating shafts are available. A spoke is arranged at each end to connect with the inner cylinder.

The inner cylinder body may be provided with an opening corresponding to one silo, or a plurality of openings and corresponding silos may be arranged according to the requirements of the specific feeding, only the size and position of the openings may correspond to the windows on the outer casing; The invention preferably provides an opening.

In the present invention, the rotating shaft is a hollow rotating shaft closed at one end, and the center of the rotating shaft is provided with a partition length equal to the rotating shaft, and the upper part of the partition is an air inlet pipe connected with an air supply pipe, and the lower part of the partition plate is an air outlet pipe and is connected There is a gas collecting pipe, and an air inlet pipe and a gas collecting pipe are connected to the silo; the inner cylinder body is provided with a sealed heat conductive filler. The sealed thermally conductive filler is selected from the group consisting of carbon black.

After adopting this structure, the water steam generator can be directly connected with the intake pipe, so that the intake pipe is filled with water vapor, and since the intake pipe is also connected with the air supply pipe, the water vapor can be sent to the silo through the air supply pipe. Inside, and filling the entire silo, it is opened when the silo is closed. When the silo is opened or discharged, the water vapor in the silo can act as a gas seal silo to prevent air from entering the silo. When the silo is closed, the water vapor can be sent to the outlet pipe in the hollow shaft through the gas collecting pipe connected to the silo, and then sent out to the entire feeding device, and even if the feeding or discharging mixes some air in the process It will also be sent out of the silo with the circulation of water vapor to ensure that the silo is filled with water vapor.

In order to achieve better results, the gas collection pipe is generally connected to the feed end of the silo, and the intake pipe is connected to the closed end of the silo, so as to ensure that the water vapor fills the entire silo to the maximum extent, and is beneficial to the mixed feed. The air in the warehouse is sent out of the silo in the shortest time, thus achieving the feeding under the sealed state.

The silo is disposed obliquely downwardly in the inner cylinder body so that the plane of the silo has a negative angle with the horizontal plane, so that when the material is fed, the gravity of the used tire can be used to fall into the silo; when it is transferred to the shell On the other side of the body, the waste of the used tires is used to send out the silo and enter the cracking chamber.

Since the quality of the silo is greatly improved after the waste tire enters the silo, in order to improve the stability of the silo, the silo is fixedly connected to the inner cylinder.

Since the outer casing has a double-layer structure, the outer casing is provided with a hot air inlet and a hot air outlet, so that the double-layer structure of the outer casing forms a hot air chamber, and the hot air chamber can provide a continuous and stable heat source to the inner cylinder. The waste tire in the inner cylinder body is preheated by the carbon black in the inner cylinder body; the outer layer of the outer casing is further provided with a heat insulation layer, so that the temperature inside the casing is constant, the heat loss is prevented, and the utilization efficiency of the hot air is improved.

The window I and the window II are provided with reinforcing plates extending through the outer casing and the heat insulating layer, so that the structural strength of the window portion on the outer casing can be ensured, and the window can be prevented from being caused by the friction between the inner cylinder and the outer cylinder. Part of the deformation. During the rotation, the carbon black in the inner cylinder passes through the seam at the ends of the inner cylinder The gap enters the cavity between the outer casing and the inner cylinder, and the cavity is filled with carbon black, which not only plays a lubricating role but also helps the carbon black to further absorb the heat of the hot air chamber and conduct it into the inner cylinder body, in order to prevent carbon black leakage. a side of the reinforcing plate adjacent to the inner cylinder is provided with a fixed sealing member, and the sealing member is always in contact with the cylinder wall of the inner cylinder to have a sealing effect, and at the same time, the sealing member is disposed on the reinforcing plate , This is because the stiffeners give the fixed seals sufficient support to provide a better seal.

When the device is in operation, when the opening on the inner cylinder rotates to the position of the window I and the window II, in order to achieve a better sealing effect, a dynamic seal is arranged at the opening of the inner cylinder, so that the fixed A hard contact occurs between the seal and the dynamic seal, and since the dynamic seal can be deformed with pressure, In this way, it can ensure that the rotation of the inner cylinder body is not hindered when contacting the fixed sealing member, and the sealing effect can be better. The dynamic sealing member can adopt a common rubber sealing strip or other sealing which can be deformed with pressure. Piece The above sealing structure can effectively prevent air from entering the device through the gap between the outer casing and the inner cylinder.

In addition, in addition to the function of closing the opening by using the casing of the device casing, the invention can also be provided with a closing mechanism controlled by an elastic mechanism at the opening of the inner cylinder body, and a stopper is arranged between the outer casing and the inner cylinder body. A projection is provided on the fixed seal near one side of the closing mechanism. Before the waste tire enters the silo, that is, the opening on the inner cylinder is in the position of the window I, the closing mechanism is in an open state; when the used tire enters the silo, the inner cylinder starts to rotate, and the protrusion on the fixed seal is The closing mechanism touches, and as the cylinder rotates, the closing mechanism gradually closes under the action of the protrusion . In order to ensure a uniform transition of the closing mechanism, the outer structure of the closed structure of the present invention is curved. When it is closed, it is completely sealed with the curved surface of the inner cylinder, and the contact surface of the convex and closing mechanism is also designed as a curved structure. During the rotation of the silo from the window I to the window II, the stop provided between the outer casing and the inner cylinder always blocks the closing mechanism to prevent it from opening during operation. As the opening in the inner cylinder rotates to the position of the window II, since there is no stop here, the closing mechanism is opened by the elastic mechanism, and the used tire is discharged from the silo to the cracking chamber. After the waste tires are discharged from the silo, the equipment continues to operate, and the projections on the fixed seals provided on the window II are again brought into contact with the closing mechanism to achieve closure. The elastic mechanism may be selected from components commonly used in the art, such as springs.

In summary, the present invention adopts the corresponding process and equipment to realize the whole tire feed cracking process of the waste tire in a sealed state, and the adopted device has a simple structure and ingenious design, and the invention simplifies the existing waste tire. The cracking process step truly realizes the continuous cracking of the whole tire of the used tire, and provides a brand-new process and equipment for the cracking of the used tire.

DRAWINGS

1 is a schematic structural view of Embodiment 6;

Figure 2 is a cross-sectional view of the A-A of Figure 1;

Figure 3 is an enlarged schematic view of A in Figure 2;

4 is a schematic structural view of Embodiment 7;

Figure 5 is a cross-sectional view of the A-A of Figure 1;

Figure 6 is an enlarged schematic view of a portion A in Figure 5;

Figure 7 is a schematic view showing the connection structure of the silo and the rotating shaft;

In the figure: 1 is the insulation layer, 2 is the outer casing, 3 is the inner cylinder body, 4 is the opening, 5 is the window I, 6 is the spoke, 7 is the hot air outlet, 8 is the rotating shaft, 9 is the window II, 10 is the silo, 11 is hot air inlet, 12 is fixed seal, 13 is reinforcing plate, 14 is dynamic seal, 15 is elastic mechanism, 16 is closed mechanism, 17 is stopper, 18 is convex, 19 is partition, 20 is Intake line, 21 is the air supply tube, 22 is the air outlet line, 23 is the air collection tube, and 24 is the head.

detailed description

Example 1

The utility model relates to a waste tire cracking and feeding device, which comprises a fixed drum-shaped outer casing, an inner cylinder body is arranged in the outer casing, a rotating shaft is arranged in the center of the inner cylinder body, and a spoke is connected between the inner cylinder body wall and the rotating shaft An opening is arranged in the inner cylinder wall, and a silo is connected to the inner cylinder inside the opening, and a window I and a window II corresponding to the opening of the inner cylinder are respectively disposed on the left and right cylinder walls of the outer casing; The outer casing has a two-layer structure.

The rotating shaft is a hollow rotating shaft closed at one end, and the center of the rotating shaft is provided with a partition plate having the same length as the rotating shaft. The upper part of the partitioning plate is an air inlet pipe and is connected with a gas supply pipe, and an air outlet pipe is connected below the partition plate and a gas collecting pipe is connected. The air supply pipe and the air collection pipe are both connected to the silo; the inner cylinder body is provided with a sealed heat conductive filler.

The gas collection pipe is connected to the feed end of the silo, and the gas supply pipe is connected to the closed end of the silo.

First, the waste tire at ambient temperature is sent to the window I away from the outer casing of the reactor, and the inner cylinder starts to rotate under the driving of the rotating shaft. When the inner cylinder rotates to make the opening correspond to the window I, the waste tire passes through the opening. After entering the silo, the silo continues to rotate with the inner cylinder, and the shell of the outer casing acts as a closed opening to avoid leakage of used tires. When the inner cylinder is rotated until the opening of the silo connection corresponds to the window II on the other side of the outer casing, the used tire in the silo is discharged through the window II into the cracking chamber.

In the above process, the water steam generator is directly connected with the intake pipe, and the intake pipe is filled with water vapor. Since the intake pipe is also connected with the air supply pipe, the water vapor can be sent into the silo through the air supply pipe, and fills the whole. In the silo, when the waste tire enters the silo or discharges the silo, the water vapor in the silo can function as a gas seal silo to prevent air from entering the silo; when the silo is closed, the water vapor can pass through the silo The gas collecting pipe connected to the silo is sent into the gas outlet pipe in the hollow rotating shaft, and is sent out to the entire feeding device;

The gas collection pipe is connected at the feed end of the silo, and the intake pipe is connected to the closed end of the silo to ensure that the water vapor fills the entire silo to the greatest extent, and the air mixed into the silo is sent out of the silo in the shortest time. In order to achieve feeding in a sealed state.

Example 2

The rotating shaft is a hollow rotating shaft closed at one end, and the center of the rotating shaft is provided with a partition plate having the same length as the rotating shaft. The upper part of the partitioning plate is an air inlet pipe and is connected with a gas supply pipe, and an air outlet pipe is connected below the partition plate and a gas collecting pipe is connected. The air supply pipe and the air collection pipe are both connected to the silo; the inner cylinder body is provided with a sealed heat conductive filler. The sealed thermally conductive filler is selected from the group consisting of carbon black.

The silo is disposed obliquely downward and disposed in the inner cylinder body, and is fixedly connected to the inner cylinder body.

First, the waste tire at ambient temperature is sent to the window I away from the outer casing of the reactor, and the inner cylinder starts to rotate under the rotation of the rotating shaft. When the inner cylinder rotates to make the opening correspond to the window I, the used tire utilizes itself. The gravity falls into the silo through the opening, and then the silo continues to rotate with the inner cylinder. At this time, the shell of the outer casing functions as a closed opening to avoid leakage of used tires. When the inner cylinder is rotated until the opening of the silo connection corresponds to the window II on the other side of the outer casing, the used tire in the silo is discharged into the cracking chamber through the window II by its own gravity.

Example 3

The utility model relates to a waste tire cracking and feeding device, which comprises a fixed drum-shaped outer casing, an inner cylinder body is arranged in the outer casing, a rotating shaft is arranged in the center of the inner cylinder body, and a spoke is connected between the inner cylinder body wall and the rotating shaft The inner cylinder barrel wall is provided with an opening, and the inner cylinder inner side of the opening is connected with a silo, and the left and right side cylinder walls of the outer casing are respectively provided with a window I and a window II corresponding to the inner cylinder opening; The outer casing has a double-layer structure; the inner cylinder body is provided with a sealed heat conductive filler. The sealed thermally conductive filler is selected from the group consisting of carbon black.

The rotating shaft is a hollow rotating shaft closed at one end, and the center of the rotating shaft is provided with a partition plate having the same length as the rotating shaft. The upper part of the partitioning plate is an air inlet pipe and is connected with a gas supply pipe, and an air outlet pipe is connected below the partition plate and a gas collecting pipe is connected. Both the air supply pipe and the air supply pipe are connected to the silo.

The outer side of the outer casing is provided with an insulating layer.

The outer casing is provided with a hot air inlet and a hot air outlet.

In the above process, the water steam generator is directly connected with the intake pipe, and the intake pipe is filled with water vapor. Since the intake pipe is also connected with the air supply pipe, the water vapor can be sent into the silo through the air supply pipe, and fills the whole. In the silo, when the waste tire enters the silo or discharges the silo, the water vapor in the silo can function as a gas seal silo to prevent air from entering the silo; When the silo is closed, the water vapor can be sent into the gas outlet pipe in the hollow rotating shaft through the gas collecting pipe connected to the silo, and then sent out to the entire feeding device;

Since the outer casing has a double-layer structure, the outer casing is provided with a hot air inlet and a hot air outlet, so that the double-layer structure of the outer casing forms a hot air chamber, and the hot air chamber can provide a continuous and stable heat source to the inner cylinder. Preheating the waste tires in the inner cylinder through the carbon black in the inner cylinder; the preheating time is 30s, and the preheating temperature is 30 0 ° C. The insulation layer provided on the outer side of the outer casing can ensure the temperature inside the casing is constant, prevent heat loss, and improve the utilization efficiency of the hot air.

Example 4

The preheating temperature of the used tire was 40 0 ° C, the preheating time was 2 min, and the rest was the same as in Example 3.

Example 5

The rotating shaft is a hollow rotating shaft closed at one end, and the center of the rotating shaft is provided with a partition plate having the same length as the rotating shaft. The upper part of the partitioning plate is an air inlet pipe and is connected with a gas supply pipe, and an air outlet pipe is connected below the partition plate and a gas collecting pipe is connected. The air supply pipe and the air supply pipe are both connected to the silo, and the inner cylinder body is provided with a sealed heat conductive filler. The sealed thermally conductive filler is selected from the group consisting of carbon black.

The outer side of the outer casing is provided with an insulating layer.

The outer casing is provided with a hot air inlet and a hot air outlet.

Both the window I and the window II are provided with a reinforcing plate extending through the outer casing and the heat insulating layer, and the reinforcing plate is provided with a fixed sealing member on a side close to the inner cylindrical body.

In the above process, the water steam generator is directly connected with the intake pipe, and the intake pipe is filled with water vapor. Since the intake pipe is also connected with the air supply pipe, the water vapor can be sent into the silo through the air supply pipe, and fills the whole. In the silo, when the waste tire enters the silo or discharges the silo, the water vapor in the silo can function as a gas seal silo to prevent air from entering the silo; when the silo is closed, The water vapor can be sent into the outlet pipe in the hollow shaft through the gas collecting pipe connected to the silo, and then sent out to the entire feeding device;

The gas collecting pipe is connected at the feeding end of the silo, and the air inlet pipe is connected to the closed end of the silo to ensure that the water vapor fills the entire silo to the greatest extent, and the air mixed into the silo is sent out in the shortest time. The bin is thus fed in a sealed state.

Since the outer casing has a double-layer structure, the outer casing is provided with a hot air inlet and a hot air outlet, so that the double-layer structure of the outer casing forms a hot air chamber, and the hot air chamber can provide a continuous and stable heat source to the inner cylinder. The waste tire in the inner cylinder is preheated by the carbon black in the inner cylinder; the preheating time is 1 min, and the preheating temperature is 200. 0 ° C. The insulation layer provided on the outer side of the outer casing can ensure the temperature inside the casing is constant, prevent heat loss, and improve the utilization efficiency of the hot air.

The window I and the window II are provided with reinforcing plates penetrating the outer casing and the heat insulating layer, which ensures the structural strength of the window portion on the outer casing and prevents deformation of the window portion due to friction between the inner cylinder and the outer cylinder. During the rotation process, the carbon black in the inner cylinder enters the cavity between the outer casing and the inner cylinder through the gap at both ends of the inner cylinder, and the cavity is filled with carbon black, which not only plays a lubricating role but also favors carbon black. Further absorbing heat from the hot air chamber and conducting it to the inner cylinder body, In order to prevent carbon black leakage, a side of the reinforcing plate near the inner cylinder is provided with a fixed sealing member, and the sealing member is always in contact with the cylinder wall of the inner cylinder body, thereby avoiding charcoal in the cavity between the outer casing and the inner cylinder body. The black leaks, while the reinforcing plate can give the fixed seal enough support to make it better sealing.

Example 6

The utility model relates to a waste tire cracking feeding device, which comprises a fixed drum-shaped outer casing 2, and an inner cylinder body 3 is arranged in the outer casing 2, wherein the inner cylinder body 3 is provided with a rotating shaft 8 at the center, and the inner cylinder body 3 has a cylinder wall and The rotating shafts 8 are connected by the spokes 6. The inner cylinder body 3 is provided with an opening 4 in the cylinder wall. The inner cylinder inside the opening 4 is connected with the silo 10, and the left and right sides of the outer casing 2 are respectively provided with one and the inner wall. The window opening I corresponds to the window I5 and the window II9; the outer casing 2 has a two-layer structure.

The rotating shaft 8 is a hollow rotating shaft closed at one end. The center of the rotating shaft 8 is provided with a partition 19 which is equal in length to the rotating shaft. Above the partitioning plate 19 is an intake pipe 20 and is connected with an air supply pipe 21, and an air outlet pipe is below the partition plate 19. The road 22 is connected to a gas collecting pipe 23, and the gas supply pipe 21 and the gas collecting pipe 23 are connected to the silo 10; the inner cylinder body 3 is provided with a sealing heat conductive filler. The sealed thermally conductive filler is selected from the group consisting of carbon black.

A gas collection pipe 23 is connected to the feed port end of the silo 10, and the gas supply pipe 21 is connected to the closed end of the silo 10.

The silo 10 is disposed obliquely downward in the inner cylinder 3 and is fixedly coupled to the inner cylinder 3.

The outer layer 2 is provided with an insulating layer 1 on the outer side.

The outer casing 2 is provided with a hot air inlet 11 and a hot air outlet 7.

The window I5 and the window II9 are provided with a reinforcing plate 13 penetrating the outer casing 2 and the heat insulating layer 1. The reinforcing plate 13 is provided with a fixed sealing member 12 on a side close to the inner cylinder 3.

The inner cylinder opening 4 is provided with a dynamic seal 14 at the end.

First, the waste tire at ambient temperature is sent to the window I5 away from the outer casing of the cracking chamber, and the inner cylinder 3 starts to rotate under the driving of the rotating shaft 8. When the inner cylinder 3 is rotated to make the opening 4 correspond to the window I5, The used tires fall into the silo 10 through the opening by their own gravity, and then the silo 10 continues to rotate with the inner cylinder 3, at which time the shell of the outer casing 2 functions as a closed opening to prevent the waste tires from leaking out. When the cylinder 3 is rotated until the opening to which the silo 10 is connected corresponds to the window II9 on the other side of the casing, the used tire in the silo 10 is discharged into the cracking chamber through the window II9 by its own gravity.

In the above process, the water steam generator is directly connected to the intake pipe 20, and the intake pipe 20 is filled with water vapor. Since the intake pipe 20 is also connected with the air supply pipe 21, the water vapor can be sent to the silo through the air supply pipe 21. 10, and fills the entire silo 10, when the waste tire enters the silo 10 or discharges the silo 10, the water vapor in the silo 10 can function as a gas seal silo to prevent air from entering the silo 10; When the silo 10 is closed, the water vapor can be sent into the gas outlet pipe 22 in the hollow rotating shaft through the gas collecting pipe 23 connected to the silo 10, and then sent out to the entire feeding device;

The air collection pipe 23 is connected to the feed end of the silo 10, and the air supply pipe 21 is connected to the closed end of the silo 10 to ensure that the water vapor fills the entire silo 10 to the greatest extent, and the air mixed into the silo 10 is minimized. The silo 10 is sent out in time to achieve feeding in a sealed state.

Since the outer casing 2 has a two-layer structure, the outer casing is provided with a hot air inlet 11 and a hot air outlet 7, so that the double-layer structure of the outer casing forms a hot air chamber through which the inner cylinder 3 can be continuously provided. A stable heat source preheats the waste tires in the inner cylinder 3 through the carbon black in the inner cylinder 3; the preheating time is 1.5 min, and the preheating temperature is 35 0 ° C. The heat insulating layer 1 disposed outside the outer casing 2 can ensure the temperature inside the casing is constant, prevent heat loss, and improve the utilization efficiency of the hot air.

The window I5 and the window II9 are provided with reinforcing plates penetrating the outer casing 2 and the heat insulating layer 1, which ensures the structural strength of the window portion on the outer casing 2, and prevents deformation of the window portion due to friction between the inner cylinder 3 and the outer casing 2. . During the rotation process, the carbon black in the inner cylinder 3 enters the cavity between the outer casing 2 and the inner cylinder 3 through the gap at both ends of the inner cylinder 3, and the cavity is filled with carbon black, which not only plays a lubricating role. It is also beneficial for the carbon black to further absorb the heat of the hot air chamber and conduct it into the inner cylinder 3, In order to prevent the leakage of the carbon black, a side of the reinforcing plate 13 close to the inner cylinder 3 is provided with a fixed sealing member 12, and the sealing member is always in contact with the cylinder wall of the inner cylinder 3, thereby avoiding the outer casing 2 and the inner cylinder 3 The leakage of the carbon black in the inter-cavity, while the reinforcing plate 13 can give the fixing seal 12 sufficient support, so as to provide a better sealing effect.

The dynamic seal 14 provided at the opening of the inner cylinder 3 is in hard contact with the fixed seal 12, and since the dynamic seal 14 can be deformed with pressure, it can ensure that the contact with the fixed seal 12 is not hindered. The inner cylinder 3 rotates at the same time to achieve a better sealing effect. The dynamic sealing member 14 can adopt a common rubber sealing strip; the dynamic sealing member 14 is used in combination with the fixed sealing member 12, and is effective. Air is prevented from entering the device through the gap between the outer casing 2 and the inner cylinder 3.

Example 7

The rotating shaft 8 is a hollow rotating shaft closed at one end. The center of the rotating shaft 8 is provided with a partition 19 which is equal in length to the rotating shaft. Above the partitioning plate 19 is an intake pipe 20 and is connected with an air supply pipe 21, and an air outlet pipe is below the partition plate 19. The road 22 is connected to a gas collecting pipe 23, and the air supply pipe 21 and the gas collecting pipe 23 are connected to the silo 10, and the inner cylinder body 3 is provided with a sealed heat conductive filler. The sealed thermally conductive filler is selected from the group consisting of carbon black.

The outer layer 2 is provided with an insulating layer 1 on the outer side.

The outer casing 2 is provided with a hot air inlet 11 and a hot air outlet 7.

The inner cylinder opening 4 is provided with a closing mechanism 16 controlled by the elastic mechanism 15, and a stopper 17 is disposed between the outer casing 2 and the inner cylinder 3. The fixed sealing member 12 on the side close to the closing mechanism 15 is provided. Bumps 18. The elastic mechanism 15 is a spring.

First, the waste tire at ambient temperature is sent to the window I5 which is away from the outer casing of the cracking chamber, and the inner cylinder 3 starts to rotate under the driving of the rotating shaft 8. When the inner cylinder 3 is rotated to make the opening correspond to the window I5, The closing mechanism 16 at the opening of the cylinder 3 is controlled to open by the elastic mechanism 15, and the used tire falls into the silo 10 through the opening by its own gravity, after which the silo 10 continues to rotate with the inner cylinder to fix the convexity on the sealing member 12. The latch 18 comes into contact with the closing mechanism 16, and as the inner cylinder 3 rotates, the closing mechanism 16 gradually closes under the action of the projection 18. During the rotation of the silo 10 from the window I5 to the window II9, the stopper 17 provided between the outer casing 2 and the inner cylinder 3 always blocks the closing mechanism 16 to prevent it from opening during operation, thereby avoiding leakage of used tires. . When the inner cylinder 3 is rotated until the opening of the silo 10 is connected to the window II9 on the other side of the casing, the closing mechanism 16 is opened by the elastic mechanism 15, and the used tire in the silo 10 passes through the window by its own gravity. II9 is discharged into the cracking chamber. After the waste tire is discharged from the silo 10, the apparatus continues to operate, and the projection 18 on the fixed seal 12 provided on the window II9 is again The closure mechanism 16 is brought into contact to achieve closure.

In the above process, the water steam generator is directly connected to the intake pipe 20, and the intake pipe 20 is filled with water vapor. Since the intake pipe 20 is also connected with the air supply pipe 21, the water vapor can be sent to the silo through the air supply pipe 21. Within 10, and filling the entire silo 10, when the waste tire enters the silo 10 or discharges the silo 10, the water vapor in the silo 10 can function as a gas seal silo. The air is prevented from entering the silo 10; when the silo 10 is closed, the water vapor can be sent into the outlet duct 22 in the hollow shaft through the air collection pipe 23 connected to the silo 10, and then sent out to the entire feeding device;

The air collecting pipe 23 is connected to the feeding end of the silo 10, and the air supply pipe 21 is connected to the closed end of the silo to ensure that the water vapor fills the entire silo 10 to the greatest extent, and the air mixed into the silo 10 is facilitated in the shortest time. The inside is sent out of the silo, thereby achieving feeding in a sealed state.

Since the outer casing 2 has a double-layer structure, the outer casing 2 is provided with a hot air inlet 11 and a hot air outlet 7, so that the double-layer structure of the outer casing 2 forms a hot air chamber through which the inner cylinder 3 can be opposed. Providing a continuous and stable heat source, preheating the waste tires in the inner cylinder 3 through the carbon black in the inner cylinder 3; the preheating time is 1.5 min, and the temperature after preheating is 35 0 ° C. The heat insulating layer 1 disposed outside the outer casing 2 can ensure the temperature inside the casing is constant, prevent heat loss, and improve the utilization efficiency of the hot air.

The window I5 and the window II9 are provided with a reinforcing plate 13 penetrating the outer casing 2 and the heat insulating layer 1, which ensures the structural strength of the window portion on the outer casing 2, and prevents the window portion from being caused by the friction between the inner cylinder 3 and the outer casing 2. Deformation. During the rotation process, the carbon black in the inner cylinder 3 enters the cavity between the outer casing 2 and the inner cylinder 3 through the gap at both ends of the inner cylinder 3, and the cavity is filled with carbon black, which not only plays a lubricating role. Further, the carbon black further absorbs the heat of the hot air chamber and is conducted into the inner cylinder 3. In order to prevent the carbon black from leaking, the side of the reinforcing plate 13 adjacent to the inner cylinder 3 is provided with a fixed sealing member 12, and the sealing member is always Contact with the wall of the inner cylinder 3 avoids the leakage of carbon black in the cavity between the outer casing 2 and the inner cylinder 3, and the reinforcing plate 13 can give the fixing seal 12 sufficient support to enable it to function. Better sealing.

Claims

1. An automatic feeding process for waste tire cracking whole tire: the characteristic is that the used tire is automatically sent into the cracking chamber by the whole tire in a sealed state.

2. The automatic feeding process for waste tire cracking whole tire according to claim 1, wherein the waste tire is automatically sent to the cracking chamber for cracking after being preheated in a sealed state.

3. The waste tire cracking feed process according to claim 2, wherein the maximum temperature of the used tire after preheating is 40 0 °C. .

4. The waste tire cracking feed process according to claim 2, wherein the preheating time is 30 s to 2 min.

5. Apparatus for carrying out the feed process of claim 1 wherein: a waste tire cracking feed apparatus comprising a fixed drum-shaped outer casing (2), the outer casing (2) being provided therein a cylinder (3), a center of the inner cylinder (3) is provided with a rotating shaft (8), and the inner cylinder wall and the rotating shaft (8) are connected by a spoke (6), and the inner cylinder wall is provided with a rotating shaft (8) At least one opening (4), a silo (10) is connected to the inner cylinder inside each opening (4), and one of the left and right cylinder walls of the outer casing (2) is provided with an opening corresponding to the inner cylinder opening (4) Window I (5) and window II (9); the outer casing (2) is a two-layer structure;

The rotating shaft (8) is a hollow rotating shaft closed at one end, the center of the rotating shaft (8) is provided with a partition (19) which is equal to the rotating shaft (8), and the upper part of the partition (19) is an intake line (20) and An air supply pipe (21) is connected, and an air outlet pipe (22) is connected below the partition plate (19) and a gas collecting pipe (23) is connected, and the air supply pipe (21) and the air collecting pipe (23) are connected to the silo (10). The inner cylinder (3) is provided with a sealed heat conductive filler.

6. Apparatus according to claim 5, characterized in that said gas collecting pipe (23) is connected to the feed port end of the silo (10), and said gas supply pipe (21) is connected to the silo (10). The closed end of the ).

7. Apparatus according to claim 5 wherein said silo (10) is disposed obliquely downwardly within the inner cylinder and is fixedly coupled to the inner cylinder.

8. Apparatus according to claim 5, characterized in that the outer side of the outer casing (2) is provided with an insulating layer (1).

9. Apparatus according to claim 5, characterized in that said outer casing (2) is provided with a hot air inlet (11) and a hot air outlet (7).

10. Apparatus according to claim 5, characterized in that said window I (5) and window II (9) are provided with reinforcing plates (13) extending through the outer casing (2) and the insulating layer (1). A side of the reinforcing plate (13) adjacent to the inner cylinder is provided with a fixed sealing member (12).

11. Apparatus according to claim 10, characterized in that said inner cylinder opening (4) is provided with a dynamic seal (14).

12. Apparatus according to claim 10, wherein said inner cylinder opening (4) is provided with a closing mechanism (16) controlled by an elastic mechanism (15), the outer casing (2) and the inner cylinder A stopper (17) is provided between (3); a protrusion (18) is provided on the fixed seal (12) on the side close to the closing mechanism (15).