A flexible graphite grounding wire production line

Abstract

The embodiment of the present invention discloses a flexible graphite grounding wire production line, including a feeding device, the output end of the feeding device is connected to an expansion device; the expansion device is connected to a desulfurization device; the input end of the desulfurization device is connected to the expansion device, and the output end of the desulfurization device has a first discharge port and a second discharge port; the first discharge port is connected to a front feeding device, the front feeding device is connected to a front calendering device, one side of the front calendering device is provided with a wiring device for fiber lines, and the wiring device is connected to a glue-hanging device; the second discharge port is connected to a rear feeding device, the front calendering device and the glue-hanging device are connected together to the input end of the rear feeding device, the rear feeding device is connected to a stripping device, and the output end of the stripping device is connected to a twisting and winding device. The equipment completes the expansion, calendering, compounding, slitting, twisting, and winding of raw materials at one time, and the equipment changes the current situation that flexible graphite grounding wires cannot be produced continuously and the width is too narrow, increases the utilization of energy, and reduces the use of labor.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of grounding material production, and specifically to a flexible graphite grounding wire production line. Background Art

[0002] The operating condition of the grounding grid of the power system is one of the important factors affecting the safe and stable operation of the power grid. Standards such as GB50169-2006 and DL / T 620-50065-2011 regulate the laying of the grounding grid, the selection of conductors and the requirements for grounding resistance values. Generally, four aspects need to be considered in the selection of grounding grid materials. First, the electrical conductivity is good, which can play the role of voltage equalization and current discharge; second, the grounding conductor has the necessary mechanical strength to withstand mechanical external forces and various environmental stresses; third, it can meet the requirements of the grounding device to resist environmental corrosion during its life cycle; fourth, the grounding impedance is stable.

[0003] For a long time, power grounding grids at home and abroad have usually used metal materials such as flat steel, stainless steel, copper, and galvanized steel, stainless steel-clad steel, and copper-clad steel containing electroplated metal layers.

[0004] However, in addition to the difficulty in transportation and construction, and the possibility of theft, the biggest bottleneck problem of steel grounding materials is the corrosion of grounding materials. Actual operation experience shows that flat steel and galvanized steel grounding materials corrode quickly, generally after 3 to 7 years of operation.

[0005] Flexible graphite grounding bodies made of non-metallic graphite with good electrical conductivity and processed by appropriate technology are increasingly used in grounding grid transformation. Compared with traditional metal materials, they have the advantages of no pollution, good electrical conductivity, acid and corrosion resistance, long service life, convenient transportation, simple construction, and anti-theft and cutting.

[0006] However, due to the low efficiency of existing processing equipment, the price of grounding materials is relatively high, which seriously affects the widespread application of flexible graphite grounding bodies in grounding grid construction. Summary of the invention

[0007] To this end, an embodiment of the present invention provides a flexible graphite grounding wire production line to solve the problem in the prior art that the price of grounding materials is high due to the low processing efficiency of existing processing equipment, which seriously affects the application of flexible graphite grounding bodies in grounding network construction.

[0008] In order to achieve the above purpose, the embodiment of the present invention provides the following technical solutions:

[0009] A flexible graphite grounding wire production line comprises a feeding device, wherein the output end of the feeding device is connected to an expansion device; the input end of the expansion device is connected to the feeding device, and the output end is connected to a desulfurization device; the input end of the desulfurization device is connected to the expansion device, and the output end of the desulfurization device has a first discharge port and a second discharge port; the first discharge port is connected to a front feeding device, which is connected to a front calendering device, a fiber line wiring device is provided on one side of the front calendering device, and the wiring device is connected to a glue coating device; the second discharge port is connected to a rear feeding device and is connected to the input end of the rear feeding device, the front calendering device and the glue coating device are connected together to the input end of the rear feeding device, the output end of the rear feeding device is connected to a slitting device, and the output end of the slitting device is connected to a twisting and winding device.

[0010] The embodiment of the present invention is also characterized in that the expansion device is a vertical electric heating expansion furnace or a vertical natural gas heating expansion furnace.

[0011] The embodiment of the present invention is also characterized in that the desulfurization device is a solid-gas separation desulfurizer.

[0012] The embodiment of the present invention is also characterized in that a preheating device is provided between the glue coating device and the rear material distribution device.

[0013] The embodiment of the present invention is also characterized in that the front calendering device and the rear calendering device both include a rough calendering mechanism and a fine calendering mechanism.

[0014] The embodiment of the present invention is also characterized in that a waste heat recovery device is installed on the expansion device.

[0015] The embodiment of the present invention is also characterized in that a desulfurization device is provided between the expansion device and the desulfurization device.

[0016] The embodiment of the present invention is also characterized in that a drying furnace is provided inside the expansion device near one end of the inlet.

[0017] The embodiment of the present invention is also characterized in that the rollers of the front material distributing device and the rear material distributing device are made of ratchet needles densely distributed along a spiral line.

[0018] The embodiments of the present invention have the following advantages:

[0019] 1. This equipment completes the expansion, calendering, compounding, slitting, twisting and winding of raw materials at one time. This equipment changes the current situation that flexible graphite grounding wire cannot be produced continuously and the width is too narrow. The front and rear feeding devices are used to solve the limitation of width caused by uneven feeding and leaning to one side, which reduces the requirements of production on raw materials. The source of raw materials is wider and more economical, the width is increased, the efficiency is improved, the utilization of energy is increased, and the use of labor is reduced;

[0020] 2. Use vertical electric heating expansion furnace or vertical natural gas heating expansion furnace. The expansion furnace is green and environmentally friendly, avoiding pollution and inconvenience in production;

[0021] 3. The coarse calendering mechanism and the fine calendering mechanism are used, and the calendering effect is better by using two steps;

[0022] 4. Equipped with impurity removal device, which reduces the technical requirements of graphite wire production on raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0024] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0025] Figure 1 A structural schematic diagram of a flexible graphite grounding wire production line provided by an embodiment of the present invention;

[0026] Figure 2 A schematic structural diagram of a roller of a wiring device for a flexible graphite grounding wire production line provided in an embodiment of the present invention.

[0027] In the figure: 1. feeding device; 2. expansion device; 3. desulfurization device; 31. first discharge port; 32. second discharge port; 4. front feeding device; 5. front calendering device; 6. wiring device; 7. glue hanging device; 8. rear feeding device; 9. slitting device; 10. twisting and taking-up device; 11. preheating device; 12. waste heat recovery device; 13. impurity removal device; 14. ratchet needle. DETAILED DESCRIPTION

[0028] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Combination Figure 1 and Figure 2 A flexible graphite grounding wire production line comprises a feeding device 1, the output end of the feeding device 1 is connected to an expansion device 2; the input end of the expansion device 2 is connected to the feeding device 1, and the output end is connected to a desulfurization device 3; the input end of the desulfurization device 3 is connected to the expansion device 2, and the output end of the desulfurization device 3 has a first discharge port 31 and a second discharge port 32; the first discharge port 31 is connected to a front feeding device 4, the front feeding device 4 is connected to a front calendering device 5, a fiber line wiring device 6 is arranged on one side of the front calendering device 5, and the wiring device 6 is connected to a glue-coating device 7; the second discharge port 32 is connected to a rear feeding device 8 and is connected to the input end of the rear feeding device 8, the front calendering device 5 and the glue-coating device 7 are connected together to the input end of the rear feeding device 8, the output end of the rear feeding device 8 is connected to a slitting device 9, and the output end of the slitting device 9 is connected to a twisting and winding device 10.

[0030] The feeding device 1 is used to provide raw materials, the expansion device 2 is used to expand and produce graphite paper, the desulfurization device 3 is used for desulfurization, and the front feeding device 4 is used for pre-feeding, so that the fiber wires on the wiring device 6 can be evenly laid on the graphite paper. The graphite paper with the fiber wires is then combined with another part of the graphite paper of the desulfurization device 3 for calendering, and finally cut into longitudinal strips by the slitting device, and the formed graphite wire is collected and stored by the twisting and winding device 10.

[0031] The equipment completes the expansion, calendering, compounding, slitting, twisting and winding of raw materials at one time. The equipment changes the current situation that flexible graphite grounding wire cannot be produced continuously and the width is too narrow. The front cloth device 4 and the rear cloth device 8 are used to solve the limitation of width caused by the tilt of uneven cloth and the deviation to one side, which reduces the requirements of production on raw materials, makes the source of raw materials wider and more economical, increases the width, improves efficiency, increases the utilization of energy, and reduces the use of labor.

[0032] The expansion device 2 is a vertical electric heating expansion furnace or a vertical natural gas heating expansion furnace. The expansion furnace is green and environmentally friendly, avoiding pollution and inconvenience in production.

[0033] The desulfurization device 3 is a solid-gas separation desulfurizer, the upper half of which is a cylindrical barrel, the lower half is conical, one side of the top is the input end, one side of the bottom and the bottom are the output ends, which correspond to the first discharge port 31 and the second discharge port 32 respectively. During the high-temperature expansion process of graphite, sulfide impurities will be decomposed into gaseous sulfur oxides and drawn out together, so that the graphite is separated from the impure sulfur, and the desulfurization and purification of the graphite are realized.

[0034] A preheating device 11 is also provided between the glue hanging device 7 and the rear material distribution device 8 to accelerate the semi-solidification of the glue used, and the wiring glue hanging mechanism is installed to form the product in one step, thereby improving the equipment efficiency.

[0035] The front calendering device 5 and the rear calendering device both include a rough calendering mechanism and a fine calendering mechanism, and adopt two-step calendering to achieve a better calendering effect.

[0036] A waste heat recovery device 12 is installed on the expansion device 2, which is beneficial to the application of thermal energy.

[0037] An impurity removal device 13 is provided between the expansion device 2 and the desulfurization device 3, which reduces the technical requirements of the production of graphite wire on raw materials.

[0038] A drying furnace is arranged inside the expansion device 2 near the inlet end, which has good expansion effect and high efficiency.

[0039] The rollers of the front material distributing device 4 and the rear material distributing device 8 use spikes 14 densely distributed along the spiral line, so that the blank layer is spread evenly and thinly, which is beneficial to the calendering of the flexible graphite paper.

[0040] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A flexible graphite grounding wire production line, characterized by: The invention comprises a feeding device (1), wherein the output end of the feeding device (1) is connected to an expansion device (2); the input end of the expansion device (2) is connected to the feeding device (1), and the output end is connected to a desulfurization device (3); the input end of the desulfurization device (3) is connected to the expansion device (2), and the output end of the desulfurization device (3) has a first discharge port (31) and a second discharge port (32); the first discharge port (31) is connected to a front material distribution device (4), the front material distribution device (4) is connected to a front calendering device (5), and the front material distribution device (5) is connected to the front material distribution device (5). A fiber line wiring device (6) is provided on one side of the calendering device (5), and the wiring device (6) is connected to a glue coating device (7); the second material outlet (32) is connected to a rear material distribution device (8) and is connected to an input end of the rear material distribution device (8); the front calendering device (5) and the glue coating device (7) are connected together to the input end of the rear material distribution device (8); the output end of the rear material distribution device (8) is connected to a slitting device (9), and the output end of the slitting device (9) is connected to a twisting and winding device (10); A preheating device (11) is also provided between the glue coating device (7) and the rear material distribution device (8); The desulfurization device (3) is a solid-gas separation desulfurizer.

2. A flexible graphite grounding wire production line according to claim 1, characterized in that: The expansion device (2) is a vertical electric heating expansion furnace or a vertical natural gas heating expansion furnace.

3. The flexible graphite grounding wire production line according to claim 1, characterized in that: The front calendering device (5) and the rear calendering device both comprise a rough calendering mechanism and a fine calendering mechanism.

4. The flexible graphite grounding wire production line according to claim 1, characterized in that: A waste heat recovery device (12) is installed on the expansion device.

5. The flexible graphite grounding wire production line according to claim 1, characterized in that: An impurity removal device (13) is provided between the expansion device and the desulfurization device (3).

6. The flexible graphite grounding wire production line according to claim 1, characterized in that: A drying furnace is arranged inside the expansion device near one end of the inlet.

7. The flexible graphite grounding wire production line according to claim 1, characterized in that: The rollers of the front material distributing device (4) and the rear material distributing device (8) use ratchet needles (14) densely distributed along a spiral line.

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