Environment-friendly cable extruder

Abstract

The utility model discloses an environmental protection type cable extruder relates to cable production technical field, including work tank, the top of work tank is installed with drive mechanism, the drive mechanism includes motor and gear box, and the motor is detachably installed at work tank top through multiple groups of bolts, and the output shaft of motor extends to the gear box. The utility model can respectively convey the fly ash that raises in the hopper and the harmful gas that escapes at the machine head to the filter box in corresponding, and the filter core in corresponding in the filter box is handled, realizes the source collection and preliminary purification of the feeding dust and high temperature extrusion waste gas, and through the water tank that sets up, the gas after preliminary processing of filter box is washed thoroughly with water, can effectively remove the residual fine particulate matter and organic volatile matter, and can utilize the heat capacity characteristic of liquid to cool down high temperature gas, avoids the heat damage of high temperature gas to negative pressure fan and discharge pipeline.

Description

Technical Field

[0001] This utility model relates to the field of cable production technology, and in particular to an environmentally friendly cable extruder. Background Technology

[0002] Cable extruders are core equipment in wire and cable production. They use a rotating screw to heat and melt plastic granules inside the barrel, which are then extruded through the annular gap between the die core and the die sleeve, uniformly coating the surface of the conductor that is passing at a constant speed to form an insulation layer or sheath layer, thereby realizing continuous cable coating production.

[0003] Existing cable extruders typically employ methods such as installing a gas collection hood on the discharge side of the die head and setting up a dust cover or simple dust collector above the hopper to collect the high-temperature exhaust gas and dust generated during extrusion and feeding. Some equipment also introduces the collected gas into a water washing tower for treatment via pipelines. However, in actual use, because the gas collection hood and dust collector are usually set up independently, the collection efficiency is often low due to installation location limitations, and some harmful gases still escape into the workshop environment. Furthermore, replacing the filter element inside the adsorption box is cumbersome and can easily cause secondary pollution, resulting in poor maintenance convenience. At the same time, when using a water washing tower, an additional independent circulating water tank and cooling device are required, which not only takes up space but also increases equipment energy consumption and water resource consumption. Moreover, the treated gas is often directly discharged, failing to fully utilize the low-temperature airflow formed after water washing and cooling, resulting in energy waste. In view of this, this application proposes an environmentally friendly cable extruder. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as low efficiency in collecting harmful gases and cumbersome replacement of the filter element inside the adsorption box, and to propose an environmentally friendly cable extruder.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An environmentally friendly cable extruder includes a working box, a drive mechanism mounted on top of the working box, the drive mechanism including a motor and a gearbox, the motor being detachably mounted on the top of the working box by multiple sets of bolts, the output shaft of the motor extending into the gearbox, an extrusion mechanism being provided on the side of the gearbox away from the motor, the extrusion mechanism including a barrel for conveying materials, a hopper being connected to the upper end of the barrel, and an extrusion head being installed on the end of the barrel away from the gearbox;

[0007] A filtration mechanism is provided on one side of the barrel. The filtration mechanism includes a flow guide box. Filter boxes are installed on both sides of the flow guide box. A conveying pipe is connected to the top of the flow guide box. An air washing mechanism is provided above the flow guide box. The air washing mechanism includes a water tank, and the water tank is connected to the conveying pipe.

[0008] As a further preferred embodiment of this technical solution, the tops of the two filter boxes are each fitted with a sealing cap, one of the filter boxes is provided with an air inlet pipe communicating with its interior, and the other filter box is provided with a dust suction pipe communicating with its interior.

[0009] As a further preferred embodiment of this technical solution, the end of the air inlet pipe away from the filter box is connected to a gas collection hood, and the gas collection hood is installed on the side wall of the discharge side of the machine head.

[0010] The end of the suction pipe away from the filter box is connected to the inside of the hopper, and a fine-mesh screen is installed inside the end of the suction pipe that extends into the hopper.

[0011] As a further preferred embodiment of this technical solution, a one-way valve is installed inside the delivery pipe, which is used to restrict the flow of liquid from the water tank into the guide box.

[0012] As a further preferred embodiment of this technical solution, the side wall of the water tank is provided with an inlet pipe and an outlet pipe that communicate with the interior of the tank, and the inlet pipe and the outlet pipe are connected to an external pump set.

[0013] As a further preferred embodiment of this technical solution, a negative pressure fan is detachably installed on the top of the water tank by means of multiple sets of bolts, and an air outlet hood is fitted on top of the negative pressure fan;

[0014] The bottom of the air outlet hood is embedded in the top of the water tank, and the air outlet hood is rotatably connected to the water tank.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model, through the set air inlet pipe and dust suction pipe, can respectively transport the flying dust raised in the hopper and the harmful gas escaping from the machine head to the corresponding filter box. Relying on the corresponding filter element inside the filter box for treatment, it can achieve source collection and preliminary purification of feeding dust and high-temperature extrusion exhaust gas, effectively improving the air quality of the production environment. At the same time, through the set water tank, the gas after preliminary treatment by the filter box is thoroughly washed with water, which can effectively remove residual fine particulate matter and volatile organic compounds. At the same time, the heat capacity characteristics of liquid can be used to cool down the high-temperature gas, avoiding thermal damage to the negative pressure fan and exhaust pipeline caused by the high-temperature gas.

[0017] 2. This utility model, through the sealing cover embedded in the top of the filter box, facilitates quick replacement of the internal filter element without disassembling the pipeline, improving the environmental performance of the equipment while taking into account the convenience of long-term operation and maintenance. In addition, the exhaust angle of the exhaust hood can be flexibly adjusted according to the actual working conditions, pointing it towards the core components such as the control panel, motor, or gearbox, and using the gas cooled by water washing to assist in the cooling of the components, thereby achieving clean emissions while further improving the heat dissipation efficiency and operational stability of the key components of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of an environmentally friendly cable extruder proposed in this utility model;

[0019] Figure 2 This is a rear view structural diagram of an environmentally friendly cable extruder proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the main structure of an environmentally friendly cable extruder proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the filter mechanism of an environmentally friendly cable extruder proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the air washing mechanism of an environmentally friendly cable extruder proposed in this utility model.

[0023] In the diagram: 1. Working box; 2. Drive mechanism; 21. Motor; 22. Gearbox; 3. Extrusion mechanism; 31. Barrel; 32. Hopper; 4. Die head; 41. Gas collection hood; 5. Filtering mechanism; 51. Flow guide box; 52. Filter box; 53. Sealing cover; 54. Air inlet pipe; 55. Dust suction pipe; 56. Conveying pipe; 6. Air washing mechanism; 61. Water tank; 611. Liquid inlet pipe; 612. Liquid outlet pipe; 62. Negative pressure fan; 63. Air outlet hood. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] This utility model provides a technical solution: such as Figures 1 to 3As shown, an environmentally friendly cable extruder includes a working box 1. A drive mechanism 2 is installed on the top of the working box 1. The drive mechanism 2 includes a motor 21 and a gearbox 22. The motor 21 is detachably installed on the top of the working box 1 by multiple sets of bolts. The output shaft of the motor 21 extends into the gearbox 22. The speed and torque are matched and adjusted through the gear transmission system inside the gearbox 22. An extrusion mechanism 3 is provided on the side of the gearbox 22 away from the motor 21. The extrusion mechanism 3 includes a barrel 31 for conveying materials. The upper end of the barrel 31 is connected to a hopper 32 for adding plastic granules. An extrusion head 4 is installed on the end of the barrel 31 away from the gearbox 22.

[0026] like Figure 4 As shown, a filter mechanism 5 is provided on one side of the barrel 31. The filter mechanism 5 includes a guide box 51, and filter boxes 52 are installed on both sides of the guide box 51. The top of the two filter boxes 52 is respectively fitted with a sealing cover 53, which facilitates quick replacement of the internal filter element without disassembling the entire pipeline during later maintenance. One filter box 52 is provided with an air inlet pipe 54 communicating with its interior, and the other filter box 52 is provided with a dust suction pipe 55 communicating with its interior. The end of the air inlet pipe 54 away from the filter box 52 is connected to a gas collection hood 41, and the gas collection hood 41 is installed on the side wall of the discharge side of the machine head 4 to expand the collection range at the source of exhaust gas generation and effectively capture the high-temperature harmful gases escaping from the machine head 4. The end of the dust suction pipe 55 away from the filter box 52 is connected to the interior of the hopper 32, and the end of the dust suction pipe 55 extending into the hopper 32 is equipped with a fine-mesh screen, which can block large particles of impurities from entering the pipeline during negative pressure dust suction and prevent the dust suction pipe 55 from becoming blocked.

[0027] In addition, a conveying pipe 56 is connected to the top of the flow guide box 51. A one-way valve is installed inside the conveying pipe 56 to restrict the flow of liquid in the water tank 61 into the flow guide box 51. A gas washing mechanism 6 is set above the flow guide box 51. The gas washing mechanism 6 includes a water tank 61 and is connected to the conveying pipe 56. It should be noted that the one-way valve inside the conveying pipe 56 can effectively restrict the liquid in the water tank 61 from flowing back into the flow guide box 51 due to pressure fluctuations or the moment the equipment starts and stops during the operation of the negative pressure fan 62. This avoids the cleaning liquid from contaminating or damaging the filter box 52 and the inside of the flow guide box 51, ensuring the one-way nature of the gas treatment process and the reliability of the system operation.

[0028] like Figure 5As shown, the side wall of the water tank 61 is provided with an inlet pipe 611 and an outlet pipe 612 that communicate with its interior. The inlet pipe 611 and the outlet pipe 612 are connected to an external pump set. Furthermore, the water tank 61 is connected to the cooling water tank on the cable production line through the inlet pipe 611 and the outlet pipe 612. Driven by the pump set, the liquid in the water tank 61 and the water in the cooling water tank form a circulation flow. The low-temperature water in the cooling water tank is replenished into the water tank 61 through the inlet pipe 611 to fully clean and cool the gas entering the water tank 61. The liquid that has absorbed harmful substances then flows back to the cooling water tank through the outlet pipe 612. It is regenerated through the heat dissipation and sedimentation function of the cooling water tank itself, ensuring that there is always low-temperature liquid in the water tank 61 for gas treatment. This realizes the linkage utilization of waste gas treatment water and production line cooling water, effectively reducing the water consumption and energy cost of equipment operation.

[0029] Specifically, a negative pressure fan 62 is detachably installed on the top of the water tank 61 via multiple sets of bolts. An exhaust hood 63 is fitted above the negative pressure fan 62, and the bottom of the exhaust hood 63 is embedded in the top of the water tank 61. The exhaust hood 63 and the water tank 61 are rotatably connected. It should be noted that the operator can flexibly adjust the exhaust angle of the exhaust hood 63 according to the actual working conditions, and discharge the clean gas after water washing and cooling to the area that needs heat dissipation, such as the control panel, motor 21 or gearbox 22 and other core components. The discharged low-temperature gas is used to cool these components, thereby achieving clean exhaust gas discharge and further improving the heat dissipation efficiency and operational stability of the key components of the equipment.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An environmentally friendly cable extruder, comprising a working box (1), characterized in that: A drive mechanism (2) is installed above the work box (1). The drive mechanism (2) includes a motor (21) and a gearbox (22). The motor (21) is detachably installed on the top of the work box (1) by multiple sets of bolts. The output shaft of the motor (21) extends into the gearbox (22). An extrusion mechanism (3) is provided on the side of the gearbox (22) away from the motor (21). The extrusion mechanism (3) includes a barrel (31) for conveying materials. A hopper (32) is connected to the upper end of the barrel (31). An extrusion head (4) is installed on the end of the barrel (31) away from the gearbox (22). A filtration mechanism (5) is provided on one side of the barrel (31). The filtration mechanism (5) includes a flow guide box (51). Filter boxes (52) are installed on both sides of the flow guide box (51). A conveying pipe (56) is connected to the top of the flow guide box (51). An air washing mechanism (6) is provided above the flow guide box (51). The air washing mechanism (6) includes a water tank (61), and the water tank (61) is connected to the conveying pipe (56).

2. The environmentally friendly cable extruder according to claim 1, characterized in that: The top of each of the two filter boxes (52) is fitted with a sealing cap (53), one of the filter boxes (52) is provided with an air inlet pipe (54) communicating with its interior, and the other filter box (52) is provided with a dust suction pipe (55) communicating with its interior.

3. The environmentally friendly cable extruder according to claim 2, characterized in that: The end of the air inlet pipe (54) away from the filter box (52) is connected to a gas collection hood (41), and the gas collection hood (41) is installed on the side wall of the discharge side of the machine head (4); The end of the suction pipe (55) away from the filter box (52) is connected to the inside of the hopper (32), and a fine-mesh screen is installed inside the end of the suction pipe (55) that extends into the hopper (32).

4. The environmentally friendly cable extruder according to claim 1, characterized in that: A one-way valve is installed inside the delivery pipe (56), which is used to restrict the flow of liquid in the water tank (61) into the guide box (51).

5. The environmentally friendly cable extruder according to claim 1, characterized in that: The water tank (61) is provided with an inlet pipe (611) and an outlet pipe (612) that communicate with its interior on the side wall. The inlet pipe (611) and the outlet pipe (612) are connected to an external pump group.

6. The environmentally friendly cable extruder according to claim 1, characterized in that: A negative pressure fan (62) is detachably installed on the top of the water tank (61) by multiple sets of bolts, and an air outlet cover (63) is fitted on the top of the negative pressure fan (62). The bottom of the air outlet cover (63) is embedded in the top of the water tank (61), and the air outlet cover (63) and the water tank (61) are rotatably connected.

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