CN216127707U - Cooling structure and single screw rod refiner - Google Patents

Abstract

The utility model provides a cooling structure and a single-screw refiner, wherein the cooling structure comprises an outer cold water channel, an inner cold water channel and a rotary joint; the outer cold water channel is arranged on the outer peripheral wall of the charging barrel and is provided with an outer water inlet and an outer water outlet, the outer water inlet is connected with the cold water conveying pipe, and the outer water outlet is connected with the hot water return pipe; the inner cooling water channel is arranged on the inner peripheral wall of the hollow screw shaft and is provided with an inner water inlet and an inner water outlet; the rotary joint is arranged at the discharge end of the hollow screw shaft and is provided with two passages, one end of each passage is positioned inside the hollow screw shaft, and the other end of each passage is positioned outside the charging barrel; the inner water inlet is communicated with the cold water delivery pipe through one passage, and the inner water outlet is communicated with the hot water return pipe through the other passage. The cooling structure provided by the utility model can be used for simultaneously carrying out water cooling on the charging barrel and the hollow screw shaft, and is high in cooling efficiency. The utility model also provides a single-screw refiner adopting the cooling structure.

Description

Cooling structure and single screw rod refiner

Technical Field

The utility model belongs to the technical field of rubber refiners, and particularly relates to a cooling structure and a single-screw refiner.

Background

In the rubber regeneration process, the refiner passes through the roller and extrudees the material repeatedly to improve technical indicator such as intensity and elongation of reclaimed rubber, in order to reach the rubber regeneration standard, the refiner that uses commonly at present has various types such as single roller, two rollers, multiroll, no matter which kind of refiner, the temperature that all need guarantee the refiner in the course of the work can keep in process range, because the refiner during operation extrudees the shearing repeatedly to the material, can produce high heat, consequently, cooling structure is the essential part on the refiner. The cooling structure who adopts on the present refiner is mostly for setting up the water-cooling jacket on the feed cylinder, perhaps set up the water-cooling tube in the roller inside, the heat that refiner work process produced is taken away in the flow that utilizes recirculated cooling water, this kind of mode is because can't dispel the heat simultaneously to feed cylinder and roller and cool down, consequently, be difficult to guarantee the material temperature equilibrium between feed cylinder and roller, thereby can lead to the finished product quality of reclaimed rubber uneven, and the efficiency of these cooling methods is lower, can't satisfy the long-time continuous operation demand of refiner, thereby influence the work efficiency of refiner itself.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a cooling structure and a single-screw refiner, and aims to solve the problems of low cooling efficiency and large temperature difference in a material cavity of the conventional refiner.

In order to achieve the purpose, the utility model adopts the technical scheme that: in a first aspect, a cooling structure is provided, comprising an outer cold water channel, an inner cold water channel, and a rotary joint; the outer cold water channel is arranged on the outer peripheral wall of the charging barrel of the refiner and is provided with an outer water inlet and an outer water outlet, the outer water inlet is connected with a cold water conveying pipe of the water cooling system, and the outer water outlet is connected with a hot water return pipe of the water cooling system; the inner cooling water channel is arranged on the inner peripheral wall of the hollow screw shaft of the refiner and is provided with an inner water inlet and an inner water outlet; the rotary joint is arranged at the discharge end of the hollow screw shaft and is provided with two passages, one end of each passage is positioned inside the hollow screw shaft, and the other end of each passage is positioned outside the charging barrel; the inner water inlet is communicated with the cold water delivery pipe through one passage, and the inner water outlet is communicated with the hot water return pipe through the other passage.

With reference to the first aspect, in one possible implementation manner, the three groups of internal cooling water channels are respectively and correspondingly arranged on the inner peripheral wall of the conveying section, the inner peripheral wall of the extruding section and the inner peripheral wall of the shearing and discharging section of the hollow screw shaft, and the three groups of internal cooling water channels are respectively provided with an internal water inlet and an internal water outlet.

In some embodiments, one end of each of the two passages located inside the hollow screw shaft is connected with an inner water inlet main pipe and an inner water outlet main pipe respectively, each inner water inlet is connected with an inner water inlet branch pipe communicated with the inner water inlet main pipe, and each inner water outlet is connected with an inner water outlet branch pipe communicated with the inner water outlet main pipe.

Illustratively, each set of inner cooling water channel comprises an inner cooling water tank and an inner sleeve; wherein, the inner cooling water tank is arranged on the inner peripheral wall of the corresponding section of the hollow screw shaft; the inner sleeve is hermetically embedded on the inner peripheral wall of the corresponding section of the hollow screw shaft, and the outer peripheral wall of the inner sleeve is used for sealing the notch of the inner cold water tank; the inner water inlet branch pipe and the inner water outlet branch pipe are respectively connected to the side wall of the inner sleeve and are respectively communicated with the inner cooling water tank.

For example, the inner cold water tank is in a spiral winding structure, and the inner water inlet branch pipe and the inner water outlet branch pipe are respectively communicated with two ends of the inner cold water tank.

Combine the first aspect, in a possible implementation, outer cold water course has three groups, and three outer cold water courses of group correspond respectively and set up on the transport section periphery wall of feed cylinder, extrusion section periphery wall and cut ejection of compact section periphery wall, and all be equipped with outer water inlet and go out the mouth of a river on three outer cold water courses of group.

In some embodiments, each outer water inlet is connected with an outer water inlet branch pipe communicated with the cold water conveying pipe, and each outer water outlet is connected with an outer water outlet branch pipe communicated with the hot water return pipe.

Illustratively, each set of outer cold water channels includes an outer cold water tank and an outer jacket; the outer cold water tank is arranged on the outer peripheral wall of the corresponding section of the charging barrel; the outer sleeve is embedded on the outer peripheral wall of the corresponding section of the charging barrel in a sealing manner, and the inner peripheral wall of the outer sleeve is used for sealing the notch of the outer cold water groove; the outer water inlet branch pipe and the outer water outlet branch pipe are respectively connected to the side wall of the outer sleeve and are respectively communicated with the outer cold water tank.

For example, the external cold water tank is of a spiral winding structure, and the external water inlet branch pipe and the external water outlet branch pipe are respectively communicated with two ends of the external cold water tank.

The cooling structure provided by the utility model has the beneficial effects that: compared with the prior art, the cooling structure can utilize the cooling water circulating in the outer cold water channel to cool the charging barrel of the refiner, and simultaneously utilizes the rotary joint to realize the connection of the inner cold water channel with the cold water conveying pipe and the hot water return pipe, so that the cooling water circulating in the inner cold water channel cools the hollow screw shaft of the refiner, and the double cooling effects of the outer cold water channel and the inner cold water channel are utilized to improve the cooling efficiency, thereby meeting the long-time continuous operation requirement of the refiner and further improving the production efficiency; in addition, the charging barrel and the hollow screw shaft can be cooled simultaneously, so that the consistency of the temperature of materials between the charging barrel and the hollow screw shaft can be ensured, the condition that the quality of finished products is uneven due to the difference of the temperature of the materials is avoided, and the quality of the reclaimed rubber finished products can be improved.

In a second aspect, an embodiment of the present invention further provides a single-screw refiner, which includes the cooling structure, and has the same beneficial effects as the cooling structure, and details are not repeated here.

Drawings

FIG. 1 is a schematic structural diagram of a single screw refiner and its cooling structure according to an embodiment of the present invention;

fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

In the figure: 1. an external cold water channel; 11. an external cold water tank; 111. an outer water inlet branch pipe; 112. a water outlet branch pipe; 12. a jacket; 2. an internal cooling water channel; 21. an internal cold water tank; 211. an inner water inlet branch pipe; 212. an inner water outlet branch pipe; 22. an inner sleeve; 3. a rotary joint; 30. a passage; 31. an inner water inlet main pipe; 32. an inner water outlet main pipe; 4. a hollow screw shaft; 41. a conveying section; 42. an extrusion section; 43. a shearing and discharging section; 5. a charging barrel; 6. a base; 7. a power mechanism; 8. a cold water delivery pipe; 9. a hot water return pipe.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1, a cooling structure provided by the present invention will now be described. The cooling structure comprises an outer cold water channel 1, an inner cold water channel 2 and a rotary joint 3; the outer cold water channel 1 is arranged on the outer peripheral wall of a charging barrel 5 of the refiner and is provided with an outer water inlet and an outer water outlet, the outer water inlet is connected with a cold water conveying pipe 8 of a water cooling system, and the outer water outlet is connected with a hot water return pipe 9 of the water cooling system; the inner cooling water channel 2 is arranged on the inner peripheral wall of a hollow screw shaft 4 of the refiner and is provided with an inner water inlet and an inner water outlet; the rotary joint 3 is arranged at the discharge end of the hollow screw shaft 4, the rotary joint 3 is provided with two passages 30, one end of each passage 30 is positioned inside the hollow screw shaft 4, and the other end of each passage 30 is positioned outside the charging barrel 5; the inner water inlet is communicated with the cold water delivery pipe 8 through one passage 30, and the inner water outlet is communicated with the hot water return pipe 9 through the other passage 30.

It should be noted that the single screw refiner utilizes a material cavity formed between the screw and the cylinder wall of the cylinder 5 to convey, extrude and shear the material to finally obtain the reclaimed rubber finished product, the screw is provided with a conveying section 41 (a larger gap is formed between the screw and the cylinder wall and the material is driven to advance by the spiral fin) aligned with the feed inlet, an extruding section 42 (the section is conical, the gap between the screw and the cylinder wall is gradually reduced, the spiral fin is also used to generate extrusion force to the material), and a shearing discharging section 43 (the section is a cutting piece distributed in an array and on the circumferential wall of the screw, the material is pressed in through the extruding section, the internal physical structure of the material is changed through the cutting piece to obtain reclaimed rubber through continuous shearing, extruding and kneading actions, and finally the end of the cylinder 5 is used for blanking).

It should be understood that the rotary joint 3 is a common component in a hydraulic system, and a single-channel joint and a multi-channel joint are commonly used, and the rotary joint 3 with two channels is selected because the inner cooling water channel 2 has one water inlet and one water outlet.

Compared with the prior art, the cooling structure provided by the embodiment can utilize cooling water circulating in the outer cold water channel 1 to cool the charging barrel 5 of the refiner, and simultaneously can realize the connection of the inner cold water channel 2 with the cold water delivery pipe 8 and the hot water return pipe 9 by utilizing the rotary joint 3, so that the cooling water circulating in the inner cold water channel 2 cools the hollow screw shaft 4 of the refiner, and the cooling efficiency can be improved by utilizing the dual cooling effect of the outer cold water channel 1 and the inner cold water channel 2, thereby meeting the long-time continuous operation requirement of the refiner and further improving the production efficiency; in addition, because the charging barrel 5 and the hollow screw shaft 4 can be cooled simultaneously, the consistency of the material temperature between the charging barrel 5 and the hollow screw shaft 4 can be ensured, the condition that the quality of finished products is uneven due to the difference of the material temperature is avoided, and the quality of the reclaimed rubber finished products can be improved.

In some embodiments, referring to fig. 1 and fig. 2 together, the internal cooling water channels 2 have three sets, the three sets of internal cooling water channels 2 are respectively and correspondingly disposed on the inner peripheral wall of the conveying section, the inner peripheral wall of the extruding section and the inner peripheral wall of the shearing and discharging section of the hollow screw shaft 4, and the three sets of internal cooling water channels 2 are respectively provided with an internal water inlet and an internal water outlet. Because the temperature of the water gradually rises along with the circulation of the cooling water in the inner cold water channel 2, the longer the inner cold water channel 2, the temperature difference between the two water inlet and outlet ends is larger, so the cooling effect difference of the inner cooling water channel 2 at the two water inlet and outlet ends is larger, three groups of inner cooling water channels 2 are arranged to respectively cool the inner peripheral wall of the conveying section, the inner peripheral wall of the extruding section and the inner peripheral wall of the shearing and discharging section of the hollow screw shaft 4, which is equivalent to reducing the length of each inner cooling water channel 2, thereby reducing the temperature difference between the water inlet end and the water outlet end of each internal cooling water channel 2, ensuring the cooling effect of each shaft section of the hollow screw shaft 4 to be consistent, thereby guarantee the processing temperature uniformity of material, help improving finished product quality, and the time that the cooling water passes through interior cold water course 2 also can corresponding shortening, consequently can improve the cooling efficiency to hollow screw shaft 4.

In this embodiment, one end of each of the two passages 30 located inside the hollow screw shaft 4 is connected to an inner water inlet main pipe 31 and an inner water outlet main pipe 32, each inner water inlet is connected to an inner water inlet branch pipe 211 communicated with the inner water inlet main pipe 31, and each inner water outlet is connected to an inner water outlet branch pipe 212 communicated with the inner water outlet main pipe 32. That is, each group of the internal cooling water passages 2 is connected to the internal water outlet main pipe 32 and the internal water inlet main pipe 31 through the corresponding internal water outlet branch pipe 212 and internal water inlet branch pipe 211, so that the parallel connection relationship between the three internal cooling water passages 2 is realized, and the cooling efficiency can be improved.

Specifically, each group of inner cooling water channels 2 comprises an inner cooling water tank 21 and an inner sleeve 22; wherein, the inner cold water groove 21 is arranged on the inner peripheral wall of the corresponding section of the hollow screw shaft 4; the inner sleeve 22 is embedded on the inner peripheral wall of the corresponding section of the hollow screw shaft 4 in a sealing manner, and the outer peripheral wall of the inner sleeve 22 is used for sealing the notch of the inner cold water tank 21; the inner water inlet branch pipe 211 and the inner water outlet branch pipe 212 are respectively connected to the side wall of the inner jacket 22 and are respectively communicated with the inner cooling water tank 21. During processing, an inner cold water groove 21 is directly milled on the inner peripheral wall of the hollow screw shaft 4, and then the inner sleeve 22 is embedded on the inner peripheral wall of the hollow screw shaft 4, so that the notch of the inner cold water groove 21 is sealed to form the inner cold water channel 2, and the processing is convenient.

Further, the internal cold water tank 21 is a spiral winding structure, and the internal water inlet branch pipe 211 and the internal water outlet branch pipe 212 are respectively communicated with two ends of the internal cold water tank 21. The spiral winding mode can ensure that the inner cold water groove 21 can uniformly cover all positions of the inner peripheral wall of the corresponding section of the hollow screw shaft 4, so that the consistency of the cooling temperature of all the positions is ensured.

In some embodiments, referring to fig. 1 and fig. 2 together, the outer cold water channels 1 have three sets, the three sets of outer cold water channels 1 are respectively disposed on the outer peripheral wall of the conveying section, the outer peripheral wall of the extruding section and the outer peripheral wall of the shearing and discharging section of the charging barrel 5, and the three sets of outer cold water channels 1 are respectively provided with an outer water inlet and an outer water outlet. Owing to along with the in-process of cooling water in the inside circulation of outer cold water course 1, the temperature can rise gradually, outer cold water course 1 is longer, its difference in temperature of the water both ends position of cominging in and going out is big more, consequently, outer cold water course 1 is also great at the cooling effect difference of its water both ends position of cominging in and going out, here through setting up three outer cold water courses 1 of group respectively to the transport section periphery wall of feed cylinder 5, the extrusion section periphery wall cools off with shearing ejection of compact section periphery wall, the length of each outer cold water course 1 has been reduced in other words, thereby can reduce the difference in temperature between the water end of cominging in and going out of each outer cold water course 1, can guarantee that the cooling effect on each position of feed cylinder 5 tends to unanimity, thereby guarantee the processing temperature uniformity of material, help improving finished product quality, and the time that the cooling water passes through outer cold water course 1 also can corresponding shortening, consequently, can improve the cooling efficiency to the barrel.

In this embodiment, each outer water inlet is connected with an outer water inlet branch pipe 111 communicated with the cold water delivery pipe 8, and each outer water outlet is connected with an outer water outlet branch pipe 112 communicated with the hot water return pipe 9. That is, each set of the outer cold water channels 1 is connected to the hot water return pipe 9 and the cold water delivery pipe 8 through the corresponding outer water outlet branch pipe 112 and outer water inlet branch pipe 111, so that the parallel connection relationship among the three outer cold water channels 1 is realized, and the cooling efficiency can be improved.

Specifically, each group of external cold water channels 1 comprises an external cold water tank 11 and an outer sleeve 12; wherein, the outer cold water tank 11 is arranged on the outer peripheral wall of the corresponding section of the charging barrel 5; the outer sleeve 12 is embedded and sleeved on the outer peripheral wall of the corresponding section of the charging barrel 5 in a sealing way, and the inner peripheral wall of the outer sleeve 12 is used for closing the notch of the outer cold water groove 11; the outer water inlet branch pipe 111 and the outer water outlet branch pipe 112 are connected to the side walls of the jacket 12, respectively, and communicate with the outer cold water tank 11, respectively. When in processing, the outer cold water groove 11 is directly milled or turned on the outer peripheral wall of the charging barrel 5, and then the outer sleeve 12 is embedded and sleeved on the outer peripheral wall of the charging barrel 5, so that the notch of the outer cold water groove 11 is closed to form the outer cold water channel 1, and the processing is convenient.

Further, the outer cold water tank 11 is a spiral winding structure, and the outer water inlet branch pipe 111 and the outer water outlet branch pipe 112 are respectively communicated with two ends of the outer cold water tank 11. The spiral winding mode can ensure that the outer cold water tank 11 can be uniformly covered on each position of the peripheral wall of the corresponding section of the charging barrel 5, so that the consistency of the cooling temperature of each position is ensured.

The embodiment of the present application further provides a single screw refiner, please refer to fig. 1 and 2, which includes a base 6, a power mechanism 7, a charging barrel 5, a hollow screw shaft 4, and the cooling structure.

The single-screw refiner provided by the utility model adopts the cooling structure, so that the charging barrel 5 of the refiner can be cooled by using the cooling water circulating in the outer cold water channel 1, and meanwhile, the connection between the inner cold water channel 2 and the cold water conveying pipe 8 and the hot water return pipe 9 can be realized by using the rotary joint 3, so that the hollow screw shaft 4 of the refiner is cooled by the cooling water circulating in the inner cold water channel 2, and the double cooling action of the outer cold water channel 1 and the inner cold water channel 2 is utilized, so that the cooling efficiency can be improved, the long-time continuous operation requirement of the refiner is met, and the production efficiency is further improved; in addition, because the charging barrel 5 and the hollow screw shaft 4 can be cooled simultaneously, the consistency of the material temperature between the charging barrel 5 and the hollow screw shaft 4 can be ensured, the condition that the quality of finished products is uneven due to the difference of the material temperature is avoided, and the quality of the reclaimed rubber finished products can be improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A cooling structure, comprising:

the outer cold water channel is arranged on the outer peripheral wall of the charging barrel of the refiner and is provided with an outer water inlet and an outer water outlet, the outer water inlet is connected with a cold water conveying pipe of the water cooling system, and the outer water outlet is connected with a hot water return pipe of the water cooling system;

the inner cooling water channel is arranged on the inner peripheral wall of the hollow screw shaft of the refiner and is provided with an inner water inlet and an inner water outlet;

the rotary joint is arranged at the discharge end of the hollow screw shaft and is provided with two passages, one end of each passage is positioned inside the hollow screw shaft, and the other end of each passage is positioned outside the charging barrel;

wherein the inner water inlet is communicated with the cold water delivery pipe through one of the passages, and the inner water outlet is communicated with the hot water return pipe through the other passage.

2. The cooling structure according to claim 1, wherein said internal cooling water passages are provided in three sets, and said three sets are provided in correspondence with an inner peripheral wall of a feeding section, an inner peripheral wall of an extruding section and an inner peripheral wall of a shearing discharging section of said hollow screw shaft, respectively, and said internal water inlet and said internal water outlet are provided in each of said three sets.

3. The cooling structure according to claim 2, wherein an inner water inlet main pipe and an inner water outlet main pipe are connected to one ends of the two passages located inside the hollow screw shaft, respectively, an inner water inlet branch pipe communicated with the inner water inlet main pipe is connected to each of the inner water inlets, and an inner water outlet branch pipe communicated with the inner water outlet main pipe is connected to each of the inner water outlets.

4. The cooling structure according to claim 3, wherein each of said inner cooling water passages includes:

the inner cold water tank is arranged on the inner peripheral wall of the corresponding section of the hollow screw shaft;

the inner sleeve is hermetically embedded on the inner peripheral wall of the corresponding section of the hollow screw shaft, and the outer peripheral wall of the inner sleeve is used for sealing the notch of the inner cold water tank;

the inner water inlet branch pipe and the inner water outlet branch pipe are respectively connected to the side wall of the inner sleeve and are respectively communicated with the inner cold water tank.

5. The cooling structure as claimed in claim 4, wherein the inner cold water tank is a spiral winding structure, and the inner water inlet branch pipe and the inner water outlet branch pipe are respectively communicated with both ends of the inner cold water tank.

6. The cooling structure according to claim 1, wherein the outer cooling water passages have three sets, the three sets of outer cooling water passages are respectively provided on the conveying section peripheral wall, the extruding section peripheral wall and the shearing discharge section peripheral wall of the barrel, and the outer water inlet and the outer water outlet are provided on all the three sets of outer cooling water passages.

7. The cooling structure as claimed in claim 6, wherein each of said outer water inlets is connected with an outer water inlet branch pipe communicated with said cold water delivery pipe, and each of said outer water outlets is connected with an outer water outlet branch pipe communicated with said hot water return pipe.

8. The cooling structure as claimed in claim 7, wherein each set of the outer cooling water passages includes:

the outer cold water tank is arranged on the outer peripheral wall of the corresponding section of the charging barrel;

the outer sleeve is embedded and sleeved on the outer peripheral wall of the corresponding section of the charging barrel in a sealing mode, and the inner peripheral wall of the outer sleeve is used for closing the notch of the outer cold water groove;

the outer water inlet branch pipe and the outer water outlet branch pipe are respectively connected to the side wall of the outer sleeve and are respectively communicated with the outer cold water tank.

9. The cooling structure as claimed in claim 8, wherein the outer cold water tank is a spiral winding structure, and the outer water inlet branch pipe and the outer water outlet branch pipe are respectively communicated with both ends of the outer cold water tank.

10. A single screw refiner, characterized by comprising a cooling structure according to any one of claims 1 to 9.

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