CN212425955U

CN212425955U - Thermal cracking feeding equipment for rubber-plastic solid material

Info

Publication number: CN212425955U
Application number: CN202021147046.3U
Authority: CN
Inventors: 陈晓燕; 李震; 马宗臣; 肖焕清; 张倩倩
Original assignee: Ikstar Qingdao Holding Co ltd
Current assignee: Ikstar Qingdao Holding Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-01-29
Anticipated expiration: 2030-06-18

Abstract

The utility model provides a rubber and plastic solid material thermal cracking feeding device, belonging to the technical field of rubber and plastic solid material thermal cracking, comprising a spiral feeder and a material conveying device arranged above the feeding end of the spiral feeder; the feeding device comprises a cache bin, a feeding metering belt scale and a feeding bin which are sequentially arranged from top to bottom, and the feeding bin is connected with the spiral feeder; the feeding bin lateral part is equipped with first charge level indicator and first charge level indicator from top to bottom in proper order, and first charge level indicator are connected with the PLC electricity, and PLC is connected with the spiral feeder electricity. The utility model discloses be applied to in the aspect of the rubber and plastic solid material thermal cracking, solved current feed arrangement and can not realize the technical problem to the accurate control of feeding volume, have can add up the measurement, realize preventing simultaneously that outside air from getting into the characteristics that pyrolysis system and high temperature oil gas revealed to the material of advancing.

Description

Thermal cracking feeding equipment for rubber-plastic solid material

Technical Field

The utility model belongs to the technical field of the thermal cracking of rubber and plastic solid material, especially, relate to a thermal cracking feeding equipment of rubber and plastic solid material.

Background

With the rapid development of economic society in China, the increasingly serious pollution of rubber and plastic solid materials such as waste tires and waste plastics causes serious pressure and damage to the ecological environment of China, and the black pollution caused by the treatment of the rubber and plastic solid materials such as the waste tires and the waste plastics is inevitable. At present, the main thermal cracking process flow of the waste tires and the waste plastics is that the waste tires or the waste plastics are firstly crushed into blocks, then the blocks are continuously conveyed to a closed high-temperature reaction kettle for thermal cracking, and finally high-temperature oil gas and solid products (steel wires and carbon black) are respectively and continuously output. Therefore, the key of the thermal cracking of the rubber and plastic solid materials is to continuously convey the solid products out of the thermal cracking reaction kettle on the premise of avoiding the air from entering the high-temperature reaction kettle or the high-temperature oil gas from leaking into the air.

Chinese patent CN 109609162A discloses a continuous bidirectional feeding device and a feeding method for thermal cracking of rubber and plastic solid materials, this two-way feed arrangement of serialization is including the first screw feeder that communicates in proper order, first hopper, second hopper and second screw feeder, the second screw feeder is including the left screw propeller and the right screw propeller of coaxial setting, first hopper feed end is linked together and is equipped with first feeding control valve between the two with first screw feeder, first hopper discharge end and left screw propeller are kept away from right screw propeller one end and are linked together and are equipped with first ejection of compact control valve between the two, second hopper feed end is linked together and is equipped with second feeding control valve between the two with first screw feeder, second hopper discharge end and right screw propeller keep away from left screw propeller one end and are linked together and are equipped with second ejection of compact control valve between the two. The problems of low feeding efficiency, large control difficulty and complex operation of the conventional feeding device are solved.

However, the above patent can not realize the precise control of the feeding amount, which is not beneficial to improving the thermal cracking efficiency and ensuring the thermal cracking effect.

Disclosure of Invention

The utility model discloses to foretell feed arrangement can not realize the technical problem to the accurate control of feeding volume, provide one kind have can to the material that advances add up the measurement, realize preventing simultaneously that outside air from getting into the rubber and plastic solid material thermal cracking feeding equipment that pyrolysis system and high temperature oil gas revealed.

In order to achieve the above object, the utility model discloses a technical scheme be:

the utility model provides rubber and plastic solid material thermal cracking feeding equipment, which comprises a spiral feeder and a feeding device arranged above the feeding end of the spiral feeder; the feeding device comprises a cache bin, a feeding metering belt scale and a feeding bin which are sequentially arranged from top to bottom, and the feeding bin is connected with the spiral feeder; the feeding bin lateral part is equipped with first charge level indicator and first charge level indicator down from top to bottom in proper order, first charge level indicator with first charge level indicator is connected with the PLC electricity down, PLC with the screw feeder electricity is connected.

Preferably, the screw feeder comprises a transmission machine, a bearing assembly connected with the transmission machine, a rotating shaft connected with the bearing assembly, a helical blade sleeved outside the rotating shaft, and a cylinder sleeved outside the helical blade; the helical blades are arranged at different intervals; one end of the cylinder body, which is close to the bearing assembly, is communicated with the feeding bin.

Preferably, an electric sealing gate valve is arranged between the feeding bin and the barrel.

Preferably, the feeding device further comprises a lifting device for conveying the rubber and plastic solid materials to the feeding hopper in the buffer storage bin, and a feeding conveyer belt arranged between the lifting device and the buffer storage bin, wherein the feeding conveyer belt is arranged below the feeding hopper lifting port.

Preferably, the buffer storage bin is provided with a second feeding level indicator and a second discharging level indicator from top to bottom in sequence, the second feeding level indicator and the second discharging level indicator are electrically connected with the PLC, and the PLC is electrically connected with the feeding hopper.

Preferably, a material puller is arranged between the buffer storage bin and the feeding metering belt scale.

Preferably, a bidirectional helical blade is arranged in the material pulling device.

Preferably, an observation hole is formed between the buffer storage bin and the material pulling device.

Preferably, the buffer storage device further comprises a bracket for supporting the buffer storage bin.

Preferably, the screw feeder is fixedly connected with a front sealed cabin of the cracking reaction kettle through a flange, and the rotating shaft and the screw blade extend into the front sealed cabin.

Compared with the prior art, the utility model discloses an advantage and beneficial effect lie in:

the utility model provides a rubber and plastic solid material thermal cracking feeding device, which is characterized in that the feeding device can perform accumulative measurement on the fed materials, and simultaneously prevent the external air from entering a pyrolysis system and prevent the leakage of high-temperature oil gas; meanwhile, the device has the characteristics of simple structure, convenience in operation, excellent performance, low manufacturing cost, capability of continuous production, energy conservation and environmental protection, capability of realizing automatic production monitoring in the whole production process and accordance with the principle of energy conservation and emission reduction.

Drawings

FIG. 1 is a schematic structural view of the feeding apparatus for thermal cracking of rubber and plastic solid materials of the present invention;

in the above figures: 11. caching a stock bin; 111. a second level indicator; 112. a second discharge level indicator; 12. a feed metering belt scale; 13. a feeding bin; 131. a first level indicator; 132. a first down level indicator; 14. a feeding bucket is lifted; 15. a feed conveyor belt; 21. a transmission machine; 22. a bearing assembly; 23. a rotating shaft; 24. a helical blade; 25. a barrel; 3. electrically sealing the gate valve; 4. a material pulling device; 5. an observation hole; 6. a support; 7. and (4) cracking the reaction kettle.

Detailed Description

The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in fig. 1, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b): as shown in fig. 1, the present embodiment provides a feeding apparatus for thermal cracking of rubber-plastic solid materials, which includes a screw feeder, and a feeding device disposed above a feeding end of the screw feeder; the material conveying device comprises a cache bin 11, a feeding metering belt scale 12 and a feeding bin 13 which are sequentially arranged from top to bottom, and the feeding bin 13 is connected with a spiral feeder; the side part of the feeding bin 13 is sequentially provided with a first feeding level indicator 131 and a first discharging level indicator 132 from top to bottom, the first feeding level indicator 131 and the first discharging level indicator 132 are electrically connected with a PLC, and the PLC is electrically connected with the screw feeder. According to the rubber and plastic solid material thermal cracking feeding equipment, the buffer storage bin 11, the feeding metering belt scale 12 and the feeding bin 13 are arranged, so that continuous and stable feeding is realized on one hand, and on the other hand, the potential safety hazard caused by the fact that external air enters a cracking system after feeding is stopped is avoided; meanwhile, the first loading level indicator 131 and the first unloading level indicator 132 are arranged on the feeding bin 13, and the first loading level indicator 131 and the first unloading level indicator 132 are interlocked with the screw feeder through the PLC, and the PLC is used for automatic control. In addition, the feed metering belt scale 12 achieves continuous and uninterrupted cumulative metering of the feed material.

In order to improve the air tightness, the screw feeder comprises a driving machine 21, a bearing assembly 22 connected with the driving machine 21, a rotating shaft 23 connected with the bearing assembly 22, a screw blade 24 sleeved outside the rotating shaft 23, and a cylinder 25 sleeved outside the screw blade 24; the helical blades 24 are arranged at unequal intervals; the end of the cylinder 25 close to the bearing assembly 22 is communicated with the feeding bin 13. Set up helical blade 24 on the axis of rotation 23, and helical blade 24 sets up to the equidistance, is in order to reach the characteristics that utilize helical blade 24 self to reach the effect of stifled gas, prevent to cause high temperature oil gas to scurry because of the extrusion is not closely knit in the feeding process. During feeding, the transmission machine 21 drives the bearing assembly 22 to further drive the rotating shaft 23 and the helical blade 24 to rotate, so that continuous feeding is realized, and meanwhile, the air tightness of the system is ensured. In addition, the pitch of the helical blades 24 is changed from equal to unequal in the feeding direction for further compacting the rubber-plastic solid material.

Further, an electric sealing gate valve 3 is arranged between the feeding bin 13 and the barrel 25.

In order to ensure continuous automatic feeding, the feeding device further comprises a feeding hopper lift 14 for conveying the rubber and plastic solid materials into the buffer storage bin 11, and a feeding conveyer belt 15 arranged between the feeding hopper lift 14 and the buffer storage bin 11, wherein the feeding conveyer belt 15 is positioned below a discharge hole of the feeding hopper lift 14.

In order to facilitate automatic control of feeding according to actual conditions, the buffer storage bin 11 is sequentially provided with a second feeding level indicator 111 and a second discharging level indicator 112 from top to bottom, the second feeding level indicator 111 and the second discharging level indicator 112 are electrically connected with the PLC, and the PLC is electrically connected with the feeding hopper lift 14.

In order to ensure continuous and stable feeding, a material puller 4 is arranged between the buffer storage bin 11 and the feeding metering belt scale 12.

Furthermore, a bidirectional helical blade is arranged in the material pulling device 4. By arranging the bidirectional helical blades, the materials are conveyed downwards from two ends to the middle to the feeding metering belt scale 12.

In order to observe the blanking condition in the buffer storage bin 11, an observation hole 5 is arranged between the buffer storage bin 11 and the material puller 4.

In order to ensure the structural firmness, the buffer storage bin structure also comprises a bracket 6 for supporting the buffer storage bin 11.

In order to ensure the sealing performance of the pyrolysis system, the screw feeder is fixedly connected with the front sealed cabin of the cracking reaction kettle 7 through a flange, and the rotating shaft 23 and the screw blade 24 extend into the front sealed cabin.

The working process of the rubber and plastic solid material thermal cracking feeding equipment comprises the following steps:

the crushed waste tire blocks or plastic fragments and other rubber and plastic solid materials reach a feeding metering belt scale 12 through a buffer storage bin 11, are weighed and are continuously conveyed forwards into a feeding bin 13, and are further conveyed into a pyrolysis reaction kettle from the feeding bin 13 for treatment;

in the process, the feeding condition in the feeding bin 13 is detected through the feeding metering belt scale 12, the first feeding level meter 131 and the first discharging level meter 132, and the operation and the stop of the screw feeder are controlled according to the actual condition, so that the control of the feeding amount is realized.

Claims

1. The utility model provides a rubber and plastic solid material thermal cracking feeding equipment, includes screw feeder which characterized in that: the feeding device is arranged above the feeding end of the screw feeder;

the feeding device comprises a cache bin (11), a feeding metering belt scale (12) and a feeding bin (13) which are sequentially arranged from top to bottom, and the feeding bin (13) is connected with the spiral feeder;

feeding storehouse (13) lateral part is equipped with first charge level indicator (131) and first charge level indicator (132) down from top to bottom in proper order, first charge level indicator (131) and first charge level indicator (132) are connected with the PLC electricity down, PLC with the screw feeder electricity is connected.

2. The feeding apparatus for thermal cracking of rubber-plastic solid materials according to claim 1, wherein: the screw feeder comprises a transmission machine (21), a bearing assembly (22) connected with the transmission machine (21), a rotating shaft (23) connected with the bearing assembly (22), a screw blade (24) sleeved outside the rotating shaft (23), and a cylinder body (25) sleeved outside the screw blade (24); the helical blades (24) are arranged at unequal intervals; one end of the cylinder body (25) close to the bearing assembly (22) is communicated with the feeding bin (13).

3. The feeding apparatus for thermal cracking of rubber-plastic solid materials according to claim 2, wherein: an electric sealing gate valve (3) is arranged between the feeding bin (13) and the barrel body (25).

4. The feeding apparatus for thermal cracking of rubber-plastic solid materials according to claim 1, wherein: the feeding device is characterized in that the feeding device further comprises a conveyor belt (15) which is used for conveying the rubber and plastic solid materials to a feeding hopper lifter (14) in the buffer storage bin (11) and is arranged between the feeding hopper lifter (14) and the buffer storage bin (11), and the feeding conveyor belt (15) is positioned below a discharge hole of the feeding hopper lifter (14).

5. The feeding apparatus for thermal cracking of rubber-plastic solid materials according to claim 4, wherein: buffer memory feed bin (11) are equipped with charge level indicator (111) and second down charge level indicator (112) from top to bottom in proper order, charge level indicator (111) and charge level indicator (112) are connected with the PLC electricity down to the second, PLC with the feeding fill is carried (14) electricity and is connected.

6. The feeding apparatus for thermal cracking of rubber-plastic solid materials according to claim 1, wherein: a material puller (4) is arranged between the buffer storage bin (11) and the feeding metering belt scale (12).

7. The feeding apparatus for thermal cracking of rubber-plastic solid materials according to claim 6, wherein: and a bidirectional helical blade is arranged in the material pulling device (4).

8. The feeding apparatus for thermal cracking of rubber-plastic solid materials according to claim 6, wherein: an observation hole (5) is arranged between the buffer storage bin (11) and the material pulling device (4).

9. The feeding apparatus for thermal cracking of rubber-plastic solid materials according to claim 1, wherein: the buffer storage device also comprises a bracket (6) for supporting the buffer storage bin (11).

10. The feeding apparatus for thermal cracking of rubber-plastic solid materials according to claim 2, wherein: the screw feeder is fixedly connected with a front sealed cabin of the cracking reaction kettle (7) through a flange, and the rotating shaft (23) and the screw blades (24) extend into the front sealed cabin.