阅读说明：本技术 废旧橡胶再生连续生产线 (Waste rubber regeneration continuous production line ) 是由 杨庆利 于 2019-11-19 设计创作，主要内容包括：本发明涉及了一种废旧橡胶再生连续生产线,包括胶粉仓、胶粉预热提升装置、软化剂加热罐、油粉混合输送装置、加热塑化部分和降温捏炼部分；胶粉仓的底部设有胶粉输送搅龙,胶粉仓中的胶粉依次经过胶粉输送搅龙和胶粉预热提升装置进入油粉混合输送装置,齿轮泵将软化剂加热罐中的软化剂泵入油粉混合输送装置,油粉混合输送装置中的混合物料依次通过加热塑化部分和降温捏炼部分实现脱硫塑化和捏炼；采用本技术方案,实现了自动化连续精准上料,避免人为干预,为提高产品质量的稳定性奠定了基础；油粉混合输送装置在实现混料功能的基础上,还实现了保温功能,简化了设备结构,减小了设备占地面积。(The invention relates to a waste rubber regeneration continuous production line, which comprises a rubber powder bin, a rubber powder preheating and lifting device, a softening agent heating tank, an oil powder mixing and conveying device, a heating and plasticizing part and a cooling and kneading part, wherein the rubber powder preheating and lifting device is arranged on the rubber powder bin; the bottom of the rubber powder bin is provided with a rubber powder conveying auger, rubber powder in the rubber powder bin sequentially enters an oil powder mixing and conveying device through the rubber powder conveying auger and a rubber powder preheating and lifting device, a gear pump pumps a softener in a softener heating tank into the oil powder mixing and conveying device, and a mixed material in the oil powder mixing and conveying device sequentially passes through a heating plasticizing part and a cooling kneading part to realize desulfurization plasticizing and kneading; by adopting the technical scheme, automatic continuous accurate feeding is realized, human intervention is avoided, and a foundation is laid for improving the stability of product quality; the oil-powder mixing and conveying device also realizes the heat preservation function on the basis of realizing the material mixing function, simplifies the equipment structure and reduces the equipment floor area.)

1. The utility model provides a waste rubber regeneration continuous production line, includes heating plastify part and cooling kneading part, the discharge gate of heating plastify part and the pan feeding mouth sealing connection of cooling kneading part, characterized by: the rubber powder preheating and lifting device comprises a rubber powder bin (1), a rubber powder preheating and lifting device (3), a softening agent heating tank (4) and an oil powder mixing and conveying device (6); a rubber powder conveying auger (2) is arranged at a discharge port of the rubber powder bin (1), and the rubber powder conveying auger (2) is used for conveying raw rubber powder in the rubber powder bin (1) to a feed port of the rubber powder preheating lifting device (3); the oil powder mixing and conveying device (6) comprises a pipeline and a stirring and conveying auger, and a rubber powder feeding hole, a softener feeding hole and a discharging hole are formed in the pipeline of the oil powder mixing and conveying device (6); the rubber powder preheating and lifting device (3) comprises a pipeline and an auger, and a discharge hole of the rubber powder preheating and lifting device (3) is hermetically connected with a rubber powder feed hole of the oil powder mixing and conveying device (6); the softening agent heating tank (4) is hermetically connected with a softening agent feeding port of the oil powder mixing and conveying device (6) through a gear pump (5) and a pipeline; heating devices are arranged on a pipeline of the rubber powder preheating lifting device (3) and a pipeline of the oil powder mixing and conveying device (6), and a discharge port of the oil powder mixing and conveying device (6) is in sealing connection with a feed port of the heating and plasticizing part.

2. The continuous production line for recycling waste rubber according to claim 1, characterized in that: the heating and plasticizing part comprises a first section heating and plasticizing device (7), a second section heating and plasticizing device (8) and a third section heating and plasticizing device (9) which are sequentially connected in a sealing manner according to the feeding and discharging order, a feeding port of the first section heating and plasticizing device (7) is connected with a discharging port of the oil-powder mixing and conveying device (6) in a sealing manner, and a discharging port of the third section heating and plasticizing device (9) is connected with a feeding port of the cooling kneading part in a sealing manner.

3. The continuous production line for recycling waste rubber according to claim 1 or 2, characterized in that: the cooling kneading part comprises a first section cooling kneading device (10) and a second section cooling kneading device (11), a feeding port of the first section cooling kneading device (10) is in sealing connection with a discharging port of the heating plasticizing part, and a discharging port of the first section cooling kneading device (10) is in sealing connection with a feeding port of the second section cooling kneading device (11).

4. The continuous production line for recycling waste rubber according to claim 3, characterized in that: the rubber powder conveying auger (2) is characterized in that a motor of the rubber powder conveying auger (2) is a variable frequency motor, the first section of heating plasticizing device (7), the second section of heating plasticizing device (8), the third section of heating plasticizing device (9), the first section of cooling kneading device (10) and the second section of cooling kneading device (11) respectively comprise a pipeline and a novel auger, the novel auger comprises a shaft A (12), a helical blade A (13) and a plurality of small connecting plates A (14), the diameter of an inscribed cylinder of the helical blade A (13) is larger than the outer diameter of the shaft A (12), the helical blade A (13) is coaxial with the shaft A (12) and is welded into a whole through the small connecting plates A (14), a channel M is formed between the inner wall of the helical blade A (13) and the outer cylindrical wall of the shaft A (12), and a channel N is formed between the helical blade A (13) and the inner wall of the; the motor of the novel auger of the first section of cooling kneading device (10) is a variable frequency motor, the pipelines of the first section of heating plasticizing device (7), the second section of heating plasticizing device (8) and the third section of heating plasticizing device (9) are all provided with heating devices, and the pipelines of the first section of cooling kneading device (10) and the second section of cooling kneading device (11) are all provided with water cooling channels.

5. The continuous production line for recycling waste rubber according to claim 4, characterized in that: the thickness of the spiral blade A (13) of the novel screw feeder is 20-80 mm.

6. The continuous production line for recycling waste rubber according to claim 4, characterized in that: the thickness of the helical blade A (13) of the novel screw feeder is 40 mm.

7. The continuous production line for recycling waste rubber according to claim 1, characterized in that: the stirring and conveying auger of the oil-powder mixing and conveying device (6) comprises a shaft C (18) and a plurality of helical blades C (19), wherein the helical blades C (19) are welded on the shaft C (18) at equal intervals, stirring rods (20) are arranged between every two adjacent helical blades C (19), and the stirring rods (20) are welded on the shaft C (18).

8. The continuous production line for recycling waste rubber according to claim 4, characterized in that: the inner wall surfaces of the pipelines of the rubber powder preheating and lifting device (3), the oil powder mixing and conveying device (6), the first section heating and plasticizing device (7), the second section heating and plasticizing device (8), the third section heating and plasticizing device (9), the first section cooling and kneading device (10) and the second section cooling and kneading device (11) are plated with chromium coatings through a hard chromium plating process.

9. The continuous production line for recycling waste rubber according to claim 4, characterized in that: the outer surfaces of the rubber powder conveying auger (2), the oil powder mixing and conveying device (6) and the outer surfaces of the spiral blades of the novel auger are plated with chromium coatings through a hard chromium plating process.

10. The continuous production line for recycling waste rubber according to claim 1, characterized in that: the bottom of the rubber powder bin (1) is provided with an automatic weighing meter GA, and the bottom of the softening agent heating tank (4) is provided with an automatic weighing meter GB.

Technical Field

The invention relates to the technical field of waste rubber regeneration, in particular to a waste rubber regeneration continuous production line.

Background

11/6/2019, a website of national improvement and reform committee publishes an industrial structure adjustment guidance catalogue (2019), which is implemented from 1/2020, and the catalogue definitely encourages the technology and application of waste rubber recycling, encourages the construction of regional waste tire recycling bases, and definitely determines that production devices of the regenerated rubber except for the normal-pressure continuous desulfurization process are all restricted, and aims to promote the high-quality development of the manufacturing industry and accelerate the improvement of the traditional industry.

The specification of the chinese patent CN109485914A discloses a waste rubber regeneration production line, which is a normal pressure continuous desulfurization production line, and includes a material bearing device (rubber powder scale and auxiliary agent scale), a mixing device (high mixing machine), a material heat preservation device (heat preservation bin), a feeding device (heat preservation material lifting machine), a heating plasticizing device and a cooling kneading device, and the waste rubber regeneration production line has the following disadvantages: mixing of raw rubber powder of waste rubber and a softening agent is usually completed in a mixer in the feeding process, heat preservation of mixed materials is usually completed in a heat preservation bin, the occupied area of equipment is large, the raw rubber powder and the softening agent need to bear loads respectively before mixing, manual intervention is needed, and real continuous feeding is not achieved; the heating and plasticizing process is generally carried slowly by a traditional screw conveyor, the rotating speed is slow and is about 5-20 r/min, and the stirring effect is basically difficult to embody, so that the materials are heated unevenly, the carbonization phenomenon is easy to generate, and the performance of the subsequent processing technology is influenced.

Disclosure of Invention

The invention aims to solve the technical problem of making up the defects of the prior art and provide a waste rubber regeneration continuous production line.

To solve the technical problems, the technical scheme of the invention is as follows: a waste rubber regeneration continuous production line comprises a heating plasticizing part and a cooling kneading part, wherein a discharge port of the heating plasticizing part is hermetically connected with a feed port of the cooling kneading part, and the waste rubber regeneration continuous production line also comprises a rubber powder bin, a rubber powder preheating and lifting device, a softener heating tank and an oil powder mixing and conveying device; a rubber powder conveying auger is arranged at the discharge port of the rubber powder bin and used for conveying raw rubber powder in the rubber powder bin to a feed port of a rubber powder preheating and lifting device; the oil powder mixing and conveying device comprises a pipeline and a stirring and conveying auger, and a rubber powder feeding hole, a softener feeding hole and a discharging hole are formed in the pipeline of the oil powder mixing and conveying device; the rubber powder preheating and lifting device comprises a pipeline and an auger, and a discharge port of the rubber powder preheating and lifting device is hermetically connected with a rubber powder feed port of the oil powder mixing and conveying device; the softening agent heating tank is hermetically connected with a softening agent feeding port of the oil powder mixing and conveying device through a gear pump and a pipeline; and heating devices are arranged on the pipeline of the rubber powder preheating and lifting device and the pipeline of the oil powder mixing and conveying device, and a discharge port of the oil powder mixing and conveying device is hermetically connected with a feed port of the heating and plasticizing part.

Furthermore, the heating and plasticizing part comprises a first section of heating and plasticizing device, a second section of heating and plasticizing device and a third section of heating and plasticizing device which are sequentially connected in a sealing manner according to the feeding and discharging order, a feeding port of the first section of heating and plasticizing device is connected with a discharging port of the oil-powder mixing and conveying device in a sealing manner, and a discharging port of the third section of heating and plasticizing device is connected with a feeding port of the cooling and kneading part in a sealing manner.

Further, the cooling kneading part comprises a first section of cooling kneading device and a second section of cooling kneading device, a feeding port of the first section of cooling kneading device is hermetically connected with a discharging port of the heating plasticizing part, and a discharging port of the first section of cooling kneading device is hermetically connected with a feeding port of the second section of cooling kneading device.

Further, the motor of the rubber powder conveying auger is a variable frequency motor, the first section of heating plasticizing device, the second section of heating plasticizing device, the third section of heating plasticizing device, the first section of cooling kneading device and the second section of cooling kneading device respectively comprise a pipeline and a novel auger, the novel auger comprises a shaft A, a helical blade A and a plurality of small connecting plates A, the diameter of an inscribed cylinder of the helical blade A is larger than the outer diameter of the shaft A, the helical blade A is coaxial with the shaft A and is welded into a whole through the small connecting plates A, a channel M is formed between the inner wall of the helical blade A and the outer cylindrical wall of the shaft A, and a channel N is formed between the helical blade A and the inner wall of the pipeline; the motor of the novel auger of the first section cooling kneading device is a variable frequency motor, the pipelines of the first section heating plasticizing device, the second section heating plasticizing device and the third section heating plasticizing device are all provided with heating devices, and the pipelines of the first section cooling kneading device and the second section cooling kneading device are all provided with water cooling channels.

Furthermore, the thickness of the helical blade A of the novel screw is 20-80 mm.

Further, the thickness of the helical blade A of the novel screw is 40 mm.

Further, oil powder mixing conveyor's stirring transport screw feeder includes axle C and a plurality of helical blade C, and a plurality of helical blade C equidistant welding is equipped with the stirring rod between the adjacent helical blade C on axle C, and the stirring rod welding is on axle C.

Furthermore, the inner wall surfaces of the pipelines of the rubber powder preheating and lifting device, the oil powder mixing and conveying device, the first section heating and plasticizing device, the second section heating and plasticizing device, the third section heating and plasticizing device, the first section cooling and kneading device and the second section cooling and kneading device are plated with chromium coatings through a hard chromium plating process.

Further, the outer surfaces of the rubber powder conveying auger, the oil powder mixing and conveying device and the novel auger are plated with chromium coatings through a hard chromium plating process.

Further, the bottom of the rubber powder bin 1 is provided with an automatic weighing meter GA, and the bottom of the softening agent heating tank 4 is provided with an automatic weighing meter GB.

The invention can achieve the following beneficial effects:

1) continuous feeding of raw rubber powder is realized through matching use of the rubber powder bin, the rubber powder conveying auger and the rubber powder preheating lifting device, continuous feeding of a softening agent is realized through matching use of the softening agent heating tank and the gear pump, manual intervention in the feeding process is avoided, accurate feeding is realized, and a foundation is laid for improving stability of product quality;

2) the pipeline of the rubber powder preheating and lifting device is provided with a heating device, so that the raw rubber powder is preheated in advance, and the mixing performance of the raw rubber powder and a softener is improved;

3) the heating device is arranged on the pipeline of the oil-powder mixing and conveying device, so that the heat preservation function is realized on the basis of realizing the material mixing function, and the discharging temperature can be kept balanced;

4) the novel auger is provided with the channel M, so that the material backflow can be realized while the plasticizing discharge flow is controlled, the rotating speed of the novel auger can be greatly increased, the increase range can be 5-10 times of the rotating speed of the auger in the prior art, the dual functions of feeding and stirring are realized, and the material carbonization phenomenon is effectively avoided;

5) after the thickness of the helical blade A13 is widened, the materials can be circularly extruded and kneaded in the channel N, the extruding and kneading effects similar to those of a kneading machine are obtained, and the plasticizing effect is further improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic view of a connection structure of an oil-powder mixing and conveying device, a heating plasticizing part and a cooling kneading part in the embodiment of the invention;

FIG. 3 is a schematic view of a part of the structure of the novel screw conveyor in the embodiment of the invention;

FIG. 4 is a schematic diagram of channel M and channel N in an embodiment of the present invention;

FIG. 5 is a partial structural schematic view of a conventional screw;

FIG. 6 is a schematic view of a part of the structure of a stirring and conveying auger of the oil-powder mixing and conveying apparatus in this embodiment;

in the figure: 1-rubber powder bin, 2-rubber powder conveying auger, 3-rubber powder preheating and lifting device, 4-softener heating tank, 5-gear pump, 6-oil powder mixing and conveying device, 7-first section heating and plasticizing device, 8-second section heating and plasticizing device, 9-third section heating and plasticizing device, 10-first section cooling and kneading device, 11-second section cooling and kneading device, 12-shaft A, 13-helical blade A, 14-small connecting plate A, 15-pipeline, 16-shaft B, 17-helical blade B, 18-shaft C, 19-helical blade C, 20-stirring rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.