CN109291309B

CN109291309B - Harmless treatment system for industrial rubber waste

Info

Publication number: CN109291309B
Application number: CN201810937132.5A
Authority: CN
Inventors: 丁云
Original assignee: Zunyi Huaqing Plastic Product Co ltd
Current assignee: ZUNYI HUAQING PLASTIC PRODUCT Co.,Ltd.
Priority date: 2018-08-16
Filing date: 2018-08-16
Publication date: 2020-08-21
Anticipated expiration: 2038-08-16
Also published as: CN109291309A

Abstract

The invention relates to the technical field of rubber treatment systems, and particularly discloses a harmless treatment system for industrial rubber waste. The device comprises a crushing barrel and a motor, wherein a feed inlet and a discharge outlet are formed in the crushing barrel, a rotating shaft penetrates through the crushing barrel, and a dust removal pipeline penetrates through the rotating shaft; four parallel spiral grooves are sequentially arranged on the outer surface of the rotating shaft, and four matched spiral blades are respectively arranged in the four spiral grooves; two adjacent helical blades are arranged in a relatively inclined manner, and a crushing knife is connected between the two helical blades; the inner wall of the crushing barrel is provided with crushing teeth; the two adjacent spiral blades are provided with air holes, an air suction hole is communicated between the air hole and the dust removal pipeline, and one end of the dust removal pipeline is communicated with a negative pressure fan. The invention aims to provide a harmless treatment system for industrial rubber waste, which aims to solve the problems that dust flies into a workshop in the crushing process, the working environment is polluted and the physical health of workers is influenced.

Description

Harmless treatment system for industrial rubber waste

Technical Field

The invention relates to the technical field of rubber treatment systems, and particularly discloses a harmless treatment system for industrial rubber waste.

Background

At present, the yield of rubber in the world exceeds 3100 million tons, the application field of the rubber is extremely wide, but the rubber inevitably ages under the action of heat, oxidation, microorganisms, mechanical force and the like in the using process and loses the use value, so that the rubber becomes waste rubber. Since a large amount of waste rubber is irreversibly polluted if it is discarded at will, it is necessary to recycle the waste rubber, and it cannot be discarded directly into the environment.

At present, a considerable part of the waste rubber is incinerated or buried, however, the incineration or buried still causes pollution to the production environment, wherein the influence of the incineration on the storage environment is most significant. During the incineration of waste rubber, a large amount of smoke and toxic gases are released, which are harmful to the environment and human survival.

In order to solve the above problems, the prior art generally adopts a cryogenic grinding technology, i.e., liquid nitrogen is used as a refrigerant to grind the waste rubber at once when the temperature is reduced to the glass transition temperature of the waste rubber. For example, the chinese utility model with the granted publication number CN204222013U discloses a low-temperature continuous recycling device for waste rubber, wherein the crushing mechanism used in the device is a twin-screw extruder. The utility model discloses a broken principle for under the low temperature condition, let the discarded rubber of preliminary treatment selectively fracture the cross-linked bond under the shearing action of screw rod, avoided to the utmost because the thermal degradation of the discarded rubber main chain that high temperature leads to, the production process can not produce any toxic gas pollution.

However, dust remains on the waste rubber before crushing, and in the crushing process, the dust can fly into workshops to pollute working environments and affect the physical health of workers.

Disclosure of Invention

The invention aims to provide a harmless treatment system for industrial rubber waste, which aims to solve the problems that dust flies into a workshop in the crushing process, the working environment is polluted and the physical health of workers is influenced.

In order to solve the above problems, the basic solution of the present invention is as follows:

the harmless treatment system for the industrial rubber waste comprises a crushing mechanism, wherein the crushing mechanism comprises a crushing barrel and a motor, a feeding hole and a discharging hole are formed in the crushing barrel, a rotating shaft penetrates through the crushing barrel along the axis of the crushing barrel, a dust removal pipeline penetrates through the rotating shaft along the axis of the rotating shaft, and the rotating shaft is connected with the motor;

the outer surface of the rotating shaft is sequentially provided with four first spiral grooves, four second spiral grooves, four third spiral grooves and four spiral grooves which are parallel to each other, the four spiral grooves are internally provided with first spiral blades, second spiral blades, third spiral blades and four spiral blades which are matched with each other, the first spiral blades and the second spiral blades are arranged in a relatively inclined mode, first crushing cutters are fixedly connected between the first spiral blades and the second spiral blades, the third spiral blades and the fourth spiral blades are arranged in a relatively inclined mode, second crushing cutters are fixedly connected between the third spiral blades and the fourth spiral blades, closed first cavities are formed between the first spiral blades, the second spiral blades and the outer surface of the rotating shaft, and closed second cavities are formed between the third spiral blades, the fourth spiral blades and the outer surface of the rotating shaft;

the first helical blade, the second helical blade and the first crushing cutter form a first crushing tooth, the third helical blade, the fourth helical blade and the second crushing cutter form a second crushing tooth, and the inner wall of the crushing barrel is provided with a third crushing tooth meshed with the first crushing tooth and the second crushing tooth;

a plurality of air holes communicated with the outside atmosphere are formed in the third spiral blade and the fourth spiral blade, a plurality of air suction holes communicated with the second cavity are formed in the dust removal pipeline, and one end, far away from the motor, of the dust removal pipeline is communicated with a negative pressure fan.

Principle of the basic scheme:

the motor drives the pivot and rotates, and at the pivoted in-process, the broken tooth of first broken tooth that comprises first helical blade, second helical blade and first broken sword and the broken tooth of second that comprises third helical blade, fourth helical blade and the broken sword of second mesh with the broken tooth of third simultaneously, mesh the breakage to abandonment rubber, and first broken sword and the broken sword of second cut the breakage to abandonment rubber.

In the process of crushing waste rubber, the negative pressure fan sucks air, dust flying up in a crushing environment is sucked through the air holes and sequentially passes through the second cavity and the air suction holes, and finally is sucked into the negative pressure fan, so that the dust removal effect of the crushing environment is realized.

The advantages of the basic scheme are:

1. in the scheme, four parallel spiral grooves are processed on the rotating shaft, then four spiral blades are screwed in the four spiral grooves, and the interiors of every two adjacent spiral blades form a hollow structure. In the prior art, helical blades are usually welded on a rotating shaft directly, but a hollow structure is formed inside every two adjacent helical blades, and the method of one-step forming is difficult to achieve. Compared with the prior art, the internal hollow structure can be manufactured only by adopting the inclined mode of every two adjacent helical blades, so that the production of a factory is facilitated, and the production efficiency of the factory is improved.

2. In the scheme, the air holes are processed on the spiral blades, and the dust in a broken environment is removed by utilizing the air holes, so that the dust is prevented from flying to a working environment, and the possibility that workers suffer from pneumoconiosis is reduced.

The first preferred scheme is as follows: as the preferred scheme of basic scheme, all be equipped with the fog hole on first helical blade and the second helical blade, the motor was kept away from in the pivot one end rotates sealing connection and has annular nest block, is equipped with the retaining chamber in the annular nest block, and the pivot between retaining chamber and the fog hole is last to be communicated with the water service pipe.

During the crushing process, water is sprayed to the rubber, dust in the crushing environment can be attached to the water mist, and finally the water can flow away with the dust. In this preferred scheme, further strengthened dust removal effect, water smoke also can cool down the abandonment rubber in the crushing process simultaneously, avoids abandonment rubber frictional heating to produce harmful gas.

The preferred scheme II is as follows: as a preferred scheme of the first preferred scheme, a cleaning mechanism is arranged above the feeding hole of the crushing cylinder, the cleaning mechanism comprises a cleaning cylinder and a first conveyor belt, the first conveyor belt penetrates through the cleaning cylinder in parallel with the axis of the cleaning cylinder, and a plurality of water inlet holes are formed in the top end of the cleaning cylinder.

The waste rubber before being crushed is cleaned, and the waste rubber passes through a water curtain formed by a water inlet hole in the cleaning cylinder. In the preferred scheme, most of dust attached to the waste rubber is washed off by water, so that the dust removal effect is further enhanced.

The preferable scheme is three: and as the second preferred scheme, a drying mechanism is arranged below the discharge port of the crushing cylinder, the drying mechanism comprises a drying cylinder and a second conveyor belt, the second conveyor belt penetrates through the drying cylinder in parallel with the axis of the drying cylinder, and a plurality of electric heating wires are arranged on the inner wall of the drying cylinder.

The crushed waste rubber is still in a wet state, and the wet waste rubber needs to be dried to perform the next process flow. In this preferred scheme, the workman of being convenient for carries out operation on next step, prevents simultaneously that moist abandonment rubber from placing for a long time, breeds the bacterium on abandonment rubber, pollutes operational environment.

The preferable scheme is four: as a preferable mode of the third preferable mode, a distance between the first spiral groove and the second spiral groove is five centimeters, a distance between the second spiral groove and the third spiral groove is one centimeter, and a distance between the third spiral groove and the fourth spiral groove is five centimeters.

The distance between the second spiral groove and the third spiral groove is smaller than the distance between other spiral grooves, so that the distance between the first crushing tooth and the second crushing tooth is smaller. In this preferred scheme for meshing between first broken tooth and the third broken tooth of second both is inseparabler, has improved the broken effect of meshing, and compact structure makes full use of the space of pivot.

The preferable scheme is five: as a preferred scheme of the fourth preferred scheme, a wedge-shaped diversion trench is arranged on the inner bottom wall of the cleaning barrel, the lowest part of the wedge-shaped diversion trench is communicated with a diversion pipe, and the diversion pipe is communicated with a water tank.

The water after the cleaning of the cleaning cylinder is collected, and the water is prevented from scattering on the ground, so that workers can slip and be injured. In this preferred scheme, improved operational environment's security, the water that collects simultaneously can recycle through filtering once more, practices thrift the cost.

Drawings

FIG. 1 is a schematic view showing the construction of an embodiment of a system for harmless disposal of industrial rubber waste according to the present invention;

FIG. 2 is a cross-sectional view of a rotating shaft in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a heating wire according to an embodiment of the present invention.

Detailed Description

The following is further detailed by the specific embodiments:

reference numerals in the drawings of the specification include:

the device comprises a cleaning barrel 1, a first conveyor belt 11, a water inlet hole 12, a first water inlet pipe 13, a first water pump 14, a wedge-shaped diversion trench 15, a diversion pipe 16, a water tank 17, a crushing barrel 2, a feed inlet 21, a discharge outlet 22, a rotating shaft 23, a dedusting pipeline 24, a second servo motor 25, a first spiral groove 26, a second spiral groove 27, a third spiral groove 28, a fourth spiral groove 29, a first spiral blade 30, a second spiral blade 31, a third spiral blade 32, a fourth spiral blade 33, a first crushing cutter 34, a second crushing cutter 35, a third crushing tooth 36, an air hole 37, an air suction hole 38, a negative pressure fan 39, a mist hole 40, an annular sleeve block 41, a water storage cavity 42, a second water inlet pipe 43, a second water pump 44, a water pipeline 45, a first cavity 46, a second cavity 47, a drying barrel 5, a second conveyor belt 51, an electric heating wire 52 and a rack 6.

Example (b):

the harmless treatment system of industrial rubber waste, as shown in fig. 1, comprises a cleaning mechanism, a crushing mechanism and a drying mechanism from top to bottom in sequence, wherein the cleaning mechanism, the crushing mechanism and the drying mechanism are all installed on a rack 6. The cleaning mechanism comprises a cleaning barrel 1 and a first conveying belt 11 which are horizontally arranged, a first driving belt wheel and a first driven belt wheel are tensioned on the first conveying belt 11, the first driving belt wheel is connected with a first servo motor, the rotating direction of the first conveying belt 11 is anticlockwise, and the waste rubber is conveyed to the left by the first conveying belt 11. The first conveyor belt 11 penetrates through the cleaning barrel 1 in parallel with the central axis of the cleaning barrel 1, thirty water inlet holes 12 are formed in the top end of the cleaning barrel 1, the ten water inlet holes 12 are arranged in a row and are distributed in three rows, the three rows are formed in total, the water inlet holes 12 are communicated with a first water inlet pipe 13, and the first water inlet pipe 13 is communicated with a first water pump 14. Processing has wedge guiding gutter 15 on the interior diapire of clean section of thick bamboo 1, and the minimum department of wedge guiding gutter 15 communicates there is honeycomb duct 16, and honeycomb duct 16 communicates has water tank 17, and wedge guiding gutter 15 left end is high, the right-hand member is low.

The right end of the first conveyor belt 11 is a feeding end, and the left end of the first conveyor belt 11 is a discharging end. Broken mechanism is installed to the discharge end below of first conveyer belt 11, and broken mechanism includes the broken section of thick bamboo 2 that the level set up, and the top processing of broken section of thick bamboo 2 has wedge-shaped feed inlet 21, and the bottom processing of broken section of thick bamboo 2 has wedge-shaped discharge gate 22, and the discharge end of first conveyer belt 11 is aimed at to the feed inlet 21 of broken section of thick bamboo 2. A rotating shaft 23 penetrates through the crushing barrel 2 along the central axis of the crushing barrel 2, a dust removal pipeline 24 penetrates through the rotating shaft 23 along the central axis of the rotating shaft 23, and an output shaft of a second servo motor 25 is mounted at the right end of the rotating shaft 23.

As shown in fig. 2, four first, second, third and fourth

spiral grooves

26, 27, 28 and 29 are sequentially formed in the outer surface of the rotating shaft 23, and the first, second, third and fourth

spiral grooves

26, 27, 28 and 29 are respectively screwed into the first, second, third and fourth matching

spiral blades

30, 31, 32 and 33. The first helical groove 26 is spaced from the second helical groove 27 by five centimeters, the second helical groove 27 is spaced from the third helical groove 28 by one centimeter, and the third helical groove 28 is spaced from the fourth helical groove 29 by five centimeters.

The first helical blade 30 is arranged obliquely to the right, the second helical blade 31 is arranged obliquely to the left, and a closed first cavity 46 is formed among the first helical blade 30, the second helical blade 31 and the outer surface of the rotating shaft 23. A first crushing blade 34 is welded between the top ends of the first helical blade 30 and the second helical blade 31, and the first helical blade 30, the second helical blade 31 and the first crushing blade 34 form a first crushing tooth.

The third helical blade 32 is disposed to be inclined to the right, the fourth helical blade 33 is disposed to be inclined to the left, and the third helical blade 32, the fourth helical blade 33 and the outer surface of the rotating shaft 23 form a closed second cavity 47. A second crushing cutter 35 is welded between the third helical blade 32 and the fourth helical blade 33, the third helical blade 32, the fourth helical blade 33 and the second crushing cutter 35 form second crushing teeth, and third crushing teeth 36 meshed with the first crushing teeth and the second crushing teeth are machined on the inner wall of the crushing barrel 2.

Ten air holes 37 communicated with the outside atmosphere are formed in the third spiral blade 32 and the fourth spiral blade 33, an air suction hole 38 is communicated between the second cavity 47 and the dust removal pipeline 24, and a negative pressure fan 39 is communicated with one end, far away from the second servo motor 25, of the dust removal pipeline 24. Fog holes 40 are formed in the first spiral blade 30 and the second spiral blade 31, the left end of the rotating shaft 23 is connected with an annular sleeve block 41 in a rotating and sealing mode, a water storage cavity 42 is formed in the annular sleeve block 41, the rotating shaft 23 between the water storage cavity 42 and the fog holes 40 is communicated with a water pipeline 45, the water storage cavity 42 is communicated with a second water inlet pipe 43, and the second water inlet pipe 43 is communicated with a second water pump 44.

The drying mechanism is installed to the below of the discharge gate 22 of broken section of thick bamboo 2, and drying mechanism includes the drying section of thick bamboo 5 and the second conveyer belt 51 of level setting, and the left end of second conveyer belt 51 is the feed end, and the right-hand member of second conveyer belt 51 is the discharge end, and the discharge gate 22 of broken section of thick bamboo 2 is aimed at to the feed inlet 21 of second conveyer belt 51. A second driving pulley and a second driven pulley are tensioned on the second conveyor belt 51, the second driving pulley is connected with a third servo motor, and the rotation direction of the second conveyor belt 51 is clockwise, namely the second conveyor belt 51 conveys the waste rubber to the right. As shown in fig. 3, second conveyor belt 51 passes through drum 5 parallel to the central axis of drum 5, and heating wire 52 is installed on the inner wall of drum 5.

In operation, the first servo motor drives the first driving pulley to rotate, and the first driving pulley drives the first conveyor belt 11 to rotate. The first water pump 14 transports water to the water inlet hole 12 of the cleaning cylinder 1 through the first water inlet pipe 13, and forms a cleaning water curtain in the water inlet hole 12. The workman puts into the feed end of first conveyer belt 11 with waste rubber, and first conveyer belt 11 transports waste rubber left, and through clean cascade, clean mechanism carries out first step cleanness to waste rubber, washes most adnexed dust on the waste rubber and falls. The cleaned water flows into the wedge-shaped guide groove 15 of the cleaning cylinder 1, then flows into the guide pipe 16, finally flows into the water tank 17, and is recycled after the water in the water tank 17 is filtered.

Waste rubber can fall into feed inlet 21 of broken section of thick bamboo 2 from the discharge end of first conveyer belt 11, and second servo motor 25 drives pivot 23 and rotates, and pivot 23 drives first broken tooth and the broken tooth of second and rotates, and first broken tooth and the broken tooth of second mesh with third broken tooth 36 simultaneously, and is broken with waste rubber extrusion. Meanwhile, the first crushing knife 34 and the second crushing knife 35 are also driven to rotate, so that the waste rubber is cut and crushed.

In the process of crushing the waste rubber, the dust remained on the waste rubber can fly to the crushing environment. At this time, the negative pressure fan 39 performs air suction work, and dust in the crushing environment is sucked into the air suction hole 38 through the air hole 37, then penetrates into the dust removal channel, and is finally sucked into the negative pressure fan 39, so that the dust removal effect is achieved. Meanwhile, the second water pump 44 sequentially conveys water to the second water inlet pipe 43, the water storage cavity 42 and the water passage, and finally conveys the water to the fog holes 40, the water is sprayed out of the fog holes 40 to form water fog, dust in the crushing space is attached to the water fog to form water flow, the water flow finally flows away, and the dust removal effect is further enhanced. And the crushing mechanism is used for crushing the waste rubber in the second step.

The crushed waste rubber drops from the discharge port 22 of the crushing cylinder 2 onto the feed end of the second conveyor belt 51, and is dried. The third servo motor drives the second driving belt wheel to rotate, the second driving belt wheel drives the second conveying belt 51 to rotate, the second conveying belt 51 conveys the waste rubber to the right, the waste rubber enters the drying cylinder 5, and the waste rubber is dried by the heating wires. And the drying mechanism is used for carrying out third-step drying on the waste rubber.

The foregoing is merely an example of the present invention and common general knowledge in the art of specific structures and/or features of the invention has not been set forth herein in any way. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. Innocent treatment system of industry rubber waste, including broken mechanism, broken mechanism includes broken section of thick bamboo and motor, is equipped with feed inlet and discharge gate on the broken section of thick bamboo, its characterized in that: a rotating shaft penetrates through the crushing barrel along the axis of the crushing barrel, a dust removal pipeline penetrates through the rotating shaft along the axis of the rotating shaft, and the rotating shaft is connected with a motor;

a plurality of air holes communicated with the outside atmosphere are formed in the third spiral blade and the fourth spiral blade, an air suction hole is communicated between the dust removal pipeline and the second cavity, and one end, far away from the motor, of the dust removal pipeline is communicated with a negative pressure fan.

2. The system for harmless disposal of industrial rubber waste according to claim 1, wherein: all be equipped with the fog hole on first helical blade and the second helical blade, the one end rotation sealing connection that the motor was kept away from in the pivot has annular cover block, is equipped with the retaining chamber in the annular cover block, and the pivot between retaining chamber and the fog hole is gone up the intercommunication and is had the water service pipeline.

3. The system for harmless disposal of industrial rubber waste according to claim 2, wherein: a cleaning mechanism is arranged above the feeding hole of the crushing barrel and comprises a cleaning barrel and a first conveying belt, the first conveying belt penetrates through the cleaning barrel in a manner of being parallel to the axis of the cleaning barrel, and a plurality of water inlet holes are formed in the top end of the cleaning barrel.

4. The system for harmless disposal of industrial rubber waste according to claim 3, wherein: the discharge gate below of broken section of thick bamboo is equipped with stoving mechanism, and stoving mechanism includes a stoving section of thick bamboo and second conveyer belt, and the axis that the second conveyer belt is on a parallel with a stoving section of thick bamboo passes a stoving section of thick bamboo, is equipped with a plurality of heating wires on the inner wall of a stoving section of thick bamboo.

5. The system for harmless disposal of industrial rubber waste according to claim 4, wherein: the distance between the first spiral groove and the second spiral groove is five centimeters, the distance between the second spiral groove and the third spiral groove is one centimeter, and the distance between the third spiral groove and the fourth spiral groove is five centimeters.

6. The system for harmless disposal of industrial rubber waste according to claim 5, wherein: the inner bottom wall of the cleaning barrel is provided with a wedge-shaped diversion trench, the lowest part of the wedge-shaped diversion trench is communicated with a diversion pipe, and the diversion pipe is communicated with a water tank.