Environment-friendly composite insulated cable waste recycling device

Abstract

The invention discloses an environment-friendly composite insulated cable waste recycling device, relates to the technical field of cable waste recycling, and aims to realize cooperative control of reaction temperature, reaction time and reaction mode so as to achieve the technical effect of synchronous forward cracking and reverse cracking. The device specifically comprises a tank body structure and a measurement and control system, on one hand, primary high-temperature cracking and secondary high-temperature cracking are combined to jointly form a dual cracking reaction, so that the cable insulation waste can complete a full single cracking reaction in the whole tank body structure; on the other hand, the second cracking reaction of the cable insulation waste is completed through the inverted whole tank body structure, the cable insulation waste can be promoted to complete the forward and reverse double cracking reaction process under the high-temperature atmosphere set on the basis, and the cracking efficiency of the cable insulation waste is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable waste recycling, in particular to an environmentally-friendly composite insulation cable waste recycling device. BACKGROUND

[0002] Composite insulation cable waste is a kind of waste left over from power construction sites and the like, and if it is not recycled, it will not only cause economic losses but also environmental pollution. The abandoned insulation cable is a kind of effective resource with high recycling value. Although the traditional physical recycling method can prolong the service life of plastic, it has the dual disadvantages of low recycling rate and low quality of regenerated products.

[0003] In the prior art, a chemical recycling method is proposed, which selectively decomposes polymers into reactive monomers through depolymerization technology, and then re-polymerizes to realize closed-loop recycling. However, the traditional thermal decomposition technology is applied to the reaction process of composite insulation cable waste, and the control of reaction temperature, reaction time and reaction mode is lacking. Further, the volatile substances generated in the depolymerization reaction process cannot be subjected to multiple cracking, and harmful by-products cannot be removed specifically, resulting in poor recycling efficiency.

[0004] Therefore, the present application proposes a solution, which comprehensively controls the reaction temperature, reaction time and reaction mode of cable insulation waste during the depolymerization reaction process, and combines forward cracking and reverse cracking to complete the double reaction process of insulation cable waste, thereby improving the recycling efficiency. SUMMARY

[0005] The present application aims to provide an environmentally-friendly composite insulation cable waste recycling device to solve the problems of.

[0006] The present application can be achieved by the following technical solution: an environmentally-friendly composite insulation cable waste recycling device, comprising a support, a tank structure is rotatably installed at the upper end of the support, the tank structure comprises a bottom tank and an upper tank connected together, a return pipe is jointly installed between the outside of the bottom tank and the upper tank, and the top of the upper tank is an open structure;

[0007] A return tank, an intermediate pipe and a temporary storage tank are sequentially arranged in the tank structure from top to bottom, a double-layer pyrolysis wire is installed on the inner side of the upper tank and covers the outer side of the return tank, a rotating assembly is installed on the outer side of the temporary storage tank and connected with the inner wall of the bottom tank, for controlling the temporary storage tank to deflect to both sides in the vertical direction, a motor one is installed at the upper end of one side of the support, for controlling the whole tank structure to rotate 180° at a time in the vertical direction.

[0008] Further arrangement, the bottom tank is a horizontal column structure and the upper tank is a bottom conical structure with an open top, the bottom of the upper tank is tangentially arranged in the middle of the bottom tank, and the intersection is smoothly connected.

[0009] Further arrangement, the upper end of the return tank is provided with a through pipe, the outer side of the upper end of the through pipe is connected with the inner wall of the upper end of the upper tank, and a gap is formed between the outer side of the return tank and the inner wall of the upper tank.

[0010] Further arrangement, the upper end of the intermediate pipe is connected with the bottom of the return tank, and the lower end of the intermediate pipe is in an open shape and provided with a reduced diameter ring.

[0011] Further arrangement, the upper end of the temporary storage tank is provided with an opening with the same opening area as the bottom opening of the intermediate pipe, the bottom of the temporary storage tank is in a hollow hemispherical structure, the upper end of the temporary storage tank is provided with an inlet, and a deflection gap is formed between the inlet and the bottom opening of the intermediate pipe.

[0012] Further arrangement, the opening end of the return tank is vertically provided with a feeding neck pipe, the upper end of the feeding neck pipe is provided with a push frame connected with an execution assembly, and the execution assembly is used for controlling the opening and closing actions of the opening of the return tank.

[0013] Further arrangement, the opening area of the upper end of the feeding neck pipe is greater than that of the lower end, the upper end of the feeding neck pipe is matched with the opening of the return tank, and the diameter of the middle part of the feeding neck pipe is smaller than that of the two ends.

[0014] Further arrangement, the rotating assembly comprises a rotating shaft and a shaft sleeve pipe penetratingly arranged on both sides of the bottom tank, one end of the outer side of the bottom tank is provided with a motor two, the output end of the motor two is connected with the rotating shaft, and the motor two is used for controlling the deflection of the temporary storage tank in the vertical direction, and the shaft sleeve pipe penetrates the bottom tank and is used for fixed connection of the motor two.

[0015] Further arrangement, the lower end of the return pipe is connected with the middle part of one end of the bottom tank away from the motor two, the bottom tank is provided with a return gas hole corresponding to the lower end of the return pipe, the return gas holes are uniformly distributed on the outer side of the shaft sleeve pipe and are connected with the inside of the bottom tank.

[0016] The present application has the following advantages:

[0017] 1. The technical problem of how to control the reaction temperature, reaction time and reaction method to achieve simultaneous forward and reverse cracking; on the one hand, the initial high-temperature cracking combined with the secondary high-temperature cracking constitutes a double cracking reaction, which promotes the cable insulation waste to complete a full single cracking reaction in the overall tank structure, on the other hand, the second cracking reaction of the cable insulation waste is completed by inverting the overall tank structure, which promotes the cable insulation waste to complete the double cracking reaction process of forward + reverse under the high-temperature atmosphere based on the basic setting, thereby improving the cracking efficiency of the cable insulation waste.

[0018] 2. The feeding, cracking reaction and discharging process of the cable insulation waste are simultaneously guided and controlled, which can ensure sufficient contact between the cable insulation waste and the high-temperature atmosphere during the high-temperature cracking process, and the double reaction of the cable insulation waste is completed by combining the forward cracking and reverse cracking processes, and the reaction temperature and reaction time can be accurately controlled, thereby improving the recovery efficiency, and the added atmosphere returning structure can guide the high-temperature atmosphere during the inversion process, avoiding the waste of high-temperature atmosphere during the inversion of the overall tank structure. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 The structural schematic diagram of the present application;

[0021] Figure 2 The side view schematic diagram of the present application;

[0022] Figure 3 The front view schematic diagram of the present application;

[0023] Figure 4 The side view partial structure schematic diagram of the present application;

[0024] Figure 5 The side view overall structure schematic diagram of the present application;

[0025] Figure 6 The deflection state schematic diagram of the temporary storage tank of the present application;

[0026] Figure 7 The inverted state schematic diagram of the temporary storage tank of the present application;

[0027] Figure 8Inverted sectional view of the temporary storage tank of the present application;

[0028] Figure 9 Inverted sectional view of the temporary storage tank of the present application;

[0029] In the figure: 1, support; 2, bottom tank; 3, upper tank; 4, return pipe; 5, motor one; 6, motor two; 7, through pipe; 8, push frame; 9, temporary storage tank; 10, intermediate pipe; 11, return tank; 12, inlet neck pipe; 13, double-layer pyrolysis wire; 14, rotating assembly; 15, reduced-diameter ring; 16, return gas hole; 17, inlet. DETAILED DESCRIPTION

[0030] The technical solutions of the present application will be described below in conjunction with the embodiments, obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] Embodiment 1: For the technical problem of how to control the reaction temperature, reaction time and reaction mode to achieve the synchronization of forward and reverse cracking, the following technical solution is proposed:

[0032] Referring to Figure 1 - Figure 9 As shown in the figure, the environmental protection type composite insulation cable waste recycling device in the embodiment comprises a support 1, a tank body structure is rotatably installed at the upper end of the support 1, the tank body structure comprises a bottom tank 2 and an upper tank 3 connected with each other, a return pipe 4 is jointly installed between the outside of the bottom tank 2 and the upper tank 3, the top of the upper tank 3 is an open structure, the bottom tank 2 is a horizontally placed columnar structure and the upper tank 3 is a bottom conical structure with an open top, the bottom of the upper tank 3 is tangentially arranged in the middle part of the bottom tank 2, and the intersection is smoothly connected.

[0033] The two intersecting columnar structures are connected through each other, and the insulation cable waste enters the tank body structure downward through the open top, the reaction product is obtained by carrying out a cracking reaction in the tank body structure, and the double reaction process of the cable insulation waste can be realized by the continuous reaction of the tank body structure in the forward and reverse directions, and the specific process is described below.

[0034] Referring to Figure 3 As shown in the figure, the tank body structure is sequentially provided with a return tank 11, an intermediate pipe 10 and a temporary storage tank 9 from top to bottom, the inner side of the upper tank 3 is installed with a double-layer pyrolysis wire 13 wrapped to the outer side of the return tank 11, the double-layer pyrolysis wire 13 comprises a plurality of groups of heating wire meshes arranged in an interlaced manner, and the wire mesh winding directions of each group of heating wire meshes are arranged in an interlaced manner, the outer side of the temporary storage tank 9 is installed with a rotating assembly 14 connected with the inner wall of the bottom tank 2, for controlling the temporary storage tank 9 to deflect to both sides in the vertical direction; referring toFigure 1 As shown, the upper end of one side of the bracket 1 is provided with a motor 5 for controlling the single rotation of the whole tank structure by 180° in the vertical direction.

[0035] Referring to Figure 6 and 7 As shown, it can be seen from the drawings that the double-layer pyrolysis wire 13 provides the reaction heat for the cable insulation waste in the tank structure during the reaction, and the cable insulation waste is placed from the top to the bottom, first passes through the double-layer pyrolysis wire 13 arranged directly outside the return tank 11 to provide high-temperature pyrolysis effect, and then falls into the temporary storage tank 9 at the lower bottom to complete the gathering pyrolysis. The gathering pyrolysis process can also realize the stirring effect through the rotation of the temporary storage tank 9 itself, and the position of the cable insulation waste can be changed during the stirring process, so as to diffuse the cable insulation waste filled in the temporary storage tank 9 to the outside, so as to form rapid contact with the high-temperature atmosphere filled outside the temporary storage tank 9 to achieve the pyrolysis effect.

[0036] Referring to Figure 7 As shown, the cable insulation waste placed upright and completed the preliminary pyrolysis reaction is turned over 180° under the driving of the motor 5, at this time the temporary storage tank 9 is in a vertical state and the inlet 17 is vertically aligned with the intermediate pipe 10, and the cable insulation waste completed the preliminary pyrolysis in the temporary storage tank 9 after being turned over 180° passes through the inlet 17 and is discharged to the return tank 11 through the intermediate pipe 10 in the reverse direction, at this time the return tank 11 is subjected to the high-temperature effect of the double-layer pyrolysis wire 13 to complete the secondary pyrolysis. That is, the above-mentioned double pyrolysis reaction can be continuously and comprehensively carried out to improve the pyrolysis efficiency of the cable insulation waste.

[0037] Referring to Figure 4 and Figure 5 As shown, the upper end of the return tank 11 is provided with a through pipe 7, the outer side of the upper end of the through pipe 7 is connected with the inner wall of the upper tank 3, there is a gap between the outer side of the return tank 11 and the inner wall of the upper tank 3, the upper end of the intermediate pipe 10 is connected with the bottom of the return tank 11, the lower end of the intermediate pipe 10 is in an open state and is provided with a reduced diameter ring 15, the upper end of the temporary storage tank 9 is provided with an opening with the same opening area as the bottom opening of the intermediate pipe 10, the bottom of the temporary storage tank 9 is in a hollow hemispherical structure, the upper end of the temporary storage tank 9 is provided with an inlet 17, and the inlet 17 and the bottom opening of the intermediate pipe 10 have a deflection gap.

[0038] Referring to Figure 3As shown, the gap between the return tank 11 and the upper tank 3 is provided for the purpose of: as known from the above, the high-temperature pyrolysis gas atmosphere is formed between the outer periphery of the return tank 11 and the inner cavity of the upper tank 3, and the gap can improve the full contact effect between the cable insulation waste filled in the return tank 11 and the high-temperature atmosphere, thereby being more conducive to the full pyrolysis of the cable insulation waste; and the deflection gap between the inlet 17 of the temporary storage tank 9 and the bottom opening of the intermediate pipe 10 is provided for the purpose of: during the rotation of the temporary storage tank 9 driven by the motor 6, the top of the temporary storage tank 9 does not contact the bottom of the intermediate pipe 10, that is, there is no risk of collision to cause the temporary storage tank 9 to be unable to normally deflect in the vertical plane.

[0039] The basic principle of the embodiment is: on the one hand, the initial high-temperature pyrolysis and the secondary high-temperature pyrolysis together constitute a double pyrolysis reaction, so that the cable insulation waste can complete a full single pyrolysis reaction in the overall tank structure; on the other hand, the inverted overall tank structure completes the second pyrolysis reaction of the cable insulation waste, so that the cable insulation waste can complete a forward + reverse double pyrolysis reaction process based on the high-temperature atmosphere set in advance, thereby improving the pyrolysis efficiency of the cable insulation waste.

[0040] Embodiment 2: The feeding process of the return tank 11 and the process after the pyrolysis of the cable insulation waste are described in detail:

[0041] Referring to Figure 1 - Figure 9 As shown, the return tank 11 is vertically installed at the opening end of the return tank 11, and the feeding neck pipe 12 is installed at the upper end of the return tank 11. The feeding neck pipe 12 is connected to the pusher 8 of the execution assembly, and the execution assembly is used to control the opening and closing actions of the opening of the return tank 11. The execution assembly here is an external electric push rod, which controls the vertical movement of the feeding neck pipe 12 through the pusher 8 to realize the closing and opening of the opening of the return tank 11. The opening area of the upper end of the feeding neck pipe 12 is larger than that of the lower end, the upper end of the feeding neck pipe 12 is matched with the opening of the return tank 11, and the diameter of the middle part of the feeding neck pipe 12 is smaller than that of the two ends.

[0042] For the feeding process, the crushed cable insulation waste enters the return tank 11 downward through the feeding neck pipe 12 and directly falls into the temporary storage tank 9; for the inverted overall tank structure, the cable insulation waste in the temporary storage tank 9 completes the double pyrolysis reaction and then falls into the return tank 11 again through the temporary storage tank 9 and the intermediate pipe 10, and the cable insulation waste gathered in the return tank 11 is subjected to the high-temperature pyrolysis of the double-layer pyrolysis wire 13 again to complete the second pyrolysis reaction.

[0043] For the discharging process, the feeding neck 12 is moved downward under the execution of the external electric push rod, and the return tank 11 opening is opened, so that the cable insulation waste after completing the two cracking reactions is discharged through the return tank 11 opening, and the cracking process of the cable insulation waste is completed and recycled.

[0044] Referring to Figure 4 - Figure 6 As shown, the rotating assembly 14 includes a rotating shaft and a shaft sleeve pipe penetratingly arranged on both sides of the bottom tank 2, one end of the outside of the bottom tank 2 is provided with a motor 6, the output end of the motor 6 is connected with the rotating shaft, which is used for controlling the deflection of the temporary storage tank 9 in the vertical direction, and the shaft sleeve pipe penetrates the bottom tank 2 for fixed connection of the motor 6, the lower end of the return pipe 4 is connected with the middle part of the one end of the bottom tank 2 away from the motor 6, the bottom tank 2 is provided with a return gas hole 16 corresponding to the lower end of the return pipe 4, and the return gas hole 16 is uniformly distributed on the outside of the shaft sleeve pipe and is in communication with the inside of the bottom tank 2.

[0045] The purpose of the return gas hole 16 and the return pipe 4 is to guide the high-temperature atmosphere in the bottom tank 2 to the upper tank 3 during the high-temperature cracking process, so as to avoid the waste of high-temperature atmosphere when the tank structure is inverted.

[0046] The embodiment is to provide a technical solution that can guide and control the feeding and discharging of cable insulation waste during the feeding, cracking reaction and discharging processes, which can ensure sufficient contact between the cable insulation waste and the high-temperature atmosphere during the high-temperature cracking process, and can complete the double reaction of the cable insulation waste by combining the forward cracking and reverse cracking processes, and can accurately control the reaction temperature and reaction time, thereby improving the recovery efficiency.

[0047] Embodiment 3: The embodiment combines the technical contents of embodiment 1 and embodiment 2, and refers to Figure 1 - Figure 9 As shown, the following use method is formed:

[0048] Step 1: The crushed cable insulation waste enters the return tank 11 downward through the feeding neck 12, and directly falls into the temporary storage tank 9;

[0049] Step 2: During the reaction process, the double-layer pyrolysis wire 13 provides heat for the reaction of the cable insulation waste in the tank structure, and during the process of placing the cable insulation waste downward from the top, the double-layer pyrolysis wire 13 directly arranged outside the return tank 11 provides high-temperature cracking effect, and then falls into the temporary storage tank 9 at the lower bottom to complete the gathering cracking, and the gathering cracking process can also realize the stirring effect through the rotation of the temporary storage tank 9 itself, so as to diffuse the cable insulation waste filled in the temporary storage tank 9 to the outside;

[0050] Step 3: The cable insulation waste which is set upright and the primary pyrolysis reaction is completed is turned 180° by the driving of the motor 5, at this time the temporary storage tank 9 is in the vertical state and the inlet 17 is vertically aligned with the intermediate tube 10, the cable insulation waste which is completed the primary pyrolysis in the temporary storage tank 9 is discharged to the return tank 11 through the intermediate tube 10 by the inlet 17 after being turned 180°, at this time the return tank 11 is completed the secondary pyrolysis under the high temperature effect of the double-layer pyrolysis wire 13;

[0051] Step 4: The inlet neck tube 12 is moved downward by the execution of the external electric push rod, and the opening of the return tank 11 is opened, so that the cable insulation waste after the twice pyrolysis reaction is discharged through the opening of the return tank 11, the pyrolysis processing of the cable insulation waste is completed and recycled.

[0052] The preferred embodiments disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details and limit the present application to the specific embodiments. Obviously, many modifications and variations can be made according to the content of the present application. The present application is selected and described in detail in order to better explain the principles and practical application of the present application, so that those skilled in the art can well understand and use the present application. The present application is limited by the claims and their full scope and equivalents.

Claims

1. An environmentally friendly composite insulated cable waste recycling and reuse device, comprising a support frame (1), characterized in that, The upper end of the bracket (1) is rotatably mounted with a tank structure, which includes a bottom tank (2) and an upper tank (3) connected to each other. A return pipe (4) is installed between the exterior of the bottom tank (2) and the upper tank (3), and the top of the upper tank (2) is an open structure. The tank structure is provided with a return tank (11), an intermediate tube (10) and a temporary storage tank (9) arranged sequentially from top to bottom. The inner side of the upper tank (3) is equipped with a double-layer pyrolysis wire (13) that covers the outside of the return tank (11). The outer side of the temporary storage tank (9) is equipped with a rotating component (14) connected to the inner wall of the bottom tank (2) for controlling the temporary storage tank (9) to deflect to both sides in the vertical direction. The upper end of one side of the bracket (1) is equipped with a motor (5) for controlling the tank structure to rotate 180° in the vertical direction in a single operation.

2. The environmentally friendly composite insulated cable waste recycling device according to claim 1, characterized in that, The bottom tank (2) is a horizontally placed columnar structure and the upper tank (3) is a bottom conical structure with an open top. The bottom of the upper tank (3) is tangent to the middle of the bottom tank (2) and the intersection is smoothly connected.

3. The environmentally friendly composite insulated cable waste recycling device according to claim 1, characterized in that, The upper end of the return tank (11) is equipped with a through pipe (7), the outer side of the upper end of the through pipe (7) is connected to the inner wall of the upper end of the upper tank (3), and there is a gap between the outer side of the return tank (11) and the inner wall of the upper tank (3).

4. The environmentally friendly composite insulated cable waste recycling device according to claim 3, characterized in that, The upper end of the intermediate tube (10) is connected to the bottom of the return tank (11), and the lower end of the intermediate tube (10) is open and equipped with a reducing ring (15).

5. The environmentally friendly composite insulated cable waste recycling device according to claim 4, characterized in that, The upper end of the temporary storage tank (9) has an opening with the same area as the bottom opening of the intermediate tube (10). The bottom of the temporary storage tank (9) is a hollow hemispherical structure. The upper end of the temporary storage tank (9) has an inlet (17). There is a deflection gap between the inlet (17) and the bottom opening of the intermediate tube (10).

6. The environmentally friendly composite insulated cable waste recycling device according to claim 1, characterized in that, The inlet neck (12) is vertically installed at the opening end of the return tank (11). The upper end of the inlet neck (12) is equipped with a pusher (8) connected to the actuator. The actuator is used to control the opening or closing action of the inlet tank (11).

7. The environmentally friendly composite insulated cable waste recycling device according to claim 6, characterized in that, The upper opening area of ​​the feed neck (12) is larger than the lower opening area. The upper end of the feed neck (12) matches the opening of the return tank (11), and the middle diameter of the feed neck (12) is smaller than the diameter of the openings at both ends.

8. The environmentally friendly composite insulated cable waste recycling device according to claim 1, characterized in that, The rotating assembly (14) includes a rotating shaft and a bushing that pass through both sides of the bottom tank (2). A second motor (6) is installed at one end of the outer side of the bottom tank (2). The output end of the second motor (6) is connected to the rotating shaft and is used to control the deflection of the temporary storage tank (9) in the vertical direction. The bushing passes through the bottom tank (2) for the fixed connection of the second motor (6).

9. The environmentally friendly composite insulated cable waste recycling device according to claim 8, characterized in that, The lower end of the return pipe (4) is connected to the middle of one end of the bottom tank (2) away from the motor (6). The bottom tank (2) is provided with a return air hole (16) corresponding to the lower end of the return pipe (4). The return air holes (16) are evenly distributed on the outside of the bushing and are connected to the inside of the bottom tank (2).

10. The environmentally friendly composite insulated cable waste recycling device according to claim 1, characterized in that, The double-layer pyrolysis wire (13) includes multiple sets of interleaved heating wire meshes, and the winding directions of the wire meshes on each set of heating wire meshes are interleaved.

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