Material suction bin

Abstract

The utility model relates to the field of feeding equipment, in particular to a material suction bin which comprises a bin body and a constant-temperature pipeline. The top of the bin body is connected with a suction pipeline, and the bottom is connected with a blanking pipeline; the material suction pipeline comprises a first communication section, a second communication section and a third communication section which communicate with one another, the first communication section is used for feeding, and the second communication section is provided with a fan and communicates with the atmosphere; the constant-temperature pipeline is spirally wound in the bin body, one end of the constant-temperature pipeline communicates with the third communicating section, and the other end of the constant-temperature pipeline communicates with the discharging pipeline; a liquid inlet and a liquid outlet are formed in the bin body, the liquid inlet and the liquid outlet are communicated with the space, except the constant-temperature pipeline, in the bin body, and constant-temperature bath lotion circulates in the space, except the constant-temperature pipeline, in the bin body. Aiming at the technical problem that the existing suction bin has defects, the temperature difference of the insulating materials in the suction bin can be well controlled, and after different insulating materials are continuously added into the suction bin, the random mixing of the insulating materials is avoided as far as possible.

Description

Technical Field

[0001] The utility model relates to the field of feeding equipment, in particular to a suction bin. Background Art

[0002] If the finished polyethylene insulation material particles are not fully cooled before use, the material temperature in the center of the pile is often higher than that in the outer area. In the actual production process, before extrusion, the cross-linked polyethylene insulation material is generally sucked into the suction bin by a straw, and then enters the screw for extrusion. However, due to the different temperatures of the insulation material particles in different areas of the pile, the temperature of the particles entering the suction bin is uneven. If extrusion is performed directly, the plasticization will be uneven, resulting in unstable glue output, which in turn causes fluctuations in the thickness of the cable insulation layer. To address this defect, the more commonly used method is to place the finished product for a period of time and wait for it to cool naturally before use. However, the natural cooling time of the material is long, generally taking about a month to cool sufficiently, which is easily affected by the warehouse capacity, and it is difficult to ensure that the material can be cooled sufficiently when orders are tight.

[0003] Also, in actual production, since the insulating materials may come from different manufacturers or different batches of the same manufacturer, and different materials require different temperatures for plasticization, during the continuous processing, these different insulating materials will be added to the suction bin one after another, and the materials will be randomly mixed, which will also cause uneven plasticization, resulting in unstable glue output and fluctuations in the thickness of the cable insulation layer. To address this defect, the more commonly used means at present is not to use products from different manufacturers; or to manually adjust the screw speed in real time when adding new insulating materials to avoid fluctuations in insulation thickness. However, these measures all have defects and greatly affect production efficiency. Utility Model Content

[0004] Aiming at the technical problems of defects in the existing suction bin, the utility model provides a suction bin. It can Better control of the temperature difference of the insulation material in the suction bin , and after different insulating materials are successively added into the suction bin, random mixing of insulating materials should be avoided as much as possible.

[0005] The technical solution provided by the utility model is: a suction silo, comprising a silo body and a constant temperature pipe; the top of the silo body is connected with a suction pipe, and the bottom of the silo body is connected with a discharge pipe; the suction pipe comprises a first connecting section, a second connecting section and a third connecting section which are interconnected, the first connecting section is used for feeding, the second connecting section is provided with a fan, and one end of the second connecting section is connected to the atmosphere; the constant temperature pipe is spirally wound in the silo body, one end of the constant temperature pipe is connected with the third connecting section, and the other end of the constant temperature pipe is connected with the discharge pipe; a liquid inlet and a liquid outlet are provided on the silo body, the liquid inlet and the liquid outlet are connected with the space in the silo body except the constant temperature pipe, and the space in the silo body except the constant temperature pipe has constant temperature bath liquid flowing in it.

[0006] Optionally, one end of the second connecting section connected to the atmosphere is connected to a dust collection bin, a first filter is provided on the connecting path between the second connecting section and the first connecting section, a second filter is provided at the connection point between the dust collection bin and the atmosphere, and the mesh number of the first filter is lower than the mesh number of the second filter.

[0007] Optionally, the height of the liquid inlet is lower than the height of the liquid outlet.

[0008] Optionally, a discharge pipe is provided on the feed pipe, and a valve body is provided on the discharge pipe.

[0009] Optionally, at least one material level sensor alarm is provided on the silo body, and at least one of the material level sensor alarms is located in the lower area of ​​the silo body.

[0010] Optionally, the cross-sectional size of the constant temperature pipe is smaller than or equal to the cross-sectional size of the suction pipe and / or discharge pipe.

[0011] Optionally, it also includes a bath liquid box, in which a heating body is arranged, and the bath liquid box, the liquid inlet, the space in the warehouse except the constant temperature pipe and the liquid outlet constitute a circulation loop, and a pump body is arranged on the circulation loop.

[0012] Optionally, the constant temperature bath liquid is water.

[0013] Beneficial Effects

[0014] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects: in view of the technical problems of defects in the existing suction bin, The utility model can better control the temperature difference of the insulating material in the suction bin. And after different insulating materials are successively added into the suction bin, random mixing of the insulating materials should be avoided as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a suction bin proposed in an embodiment of the utility model. DETAILED DESCRIPTION

[0016] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

[0017] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings. The words "first", "second", etc. described in the present utility model are set for the convenience of describing the technical solution of the present utility model, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments in the present application can be combined with each other. In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, and multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not have contradictions or conflicts, all of which are within the scope of protection required by the present utility model.

[0018] Example 1

[0019] Combined with Figure 1, this embodiment proposes a suction silo, including a silo body 8 and a constant temperature pipe 6; the top of the silo body 8 is connected with a suction pipe 5, and the bottom of the silo body 8 is connected with a discharge pipe 12; the suction pipe 5 includes a first connecting section 51, a second connecting section 52 and a third connecting section 53 that are interconnected, the first connecting section 51 is used for feeding, the second connecting section 52 is provided with a fan 3, and one end of the second connecting section 52 is connected to the atmosphere; the constant temperature pipe 6 is spirally wound in the silo body 8, one end of the constant temperature pipe 6 is connected to the third connecting section 53, and the other end of the constant temperature pipe 6 is connected to the discharge pipe 12; the silo body 8 is provided with a liquid inlet 13 and a liquid outlet 7, the liquid inlet 13 and the liquid outlet 7 are connected to the space in the silo body 8 except the constant temperature pipe 6, and the space in the silo body 8 except the constant temperature pipe 6 is circulated with a constant temperature bath liquid.

[0020] A material suction bin in this embodiment is used in the feeding stage before extrusion of cross-linked polyethylene insulation material. Can better Control the temperature difference of the insulating material in the suction bin At the same time, after different insulating materials are added to the suction bin in succession, random mixing of the insulating materials can be avoided as much as possible.

[0021] When the suction bin of this embodiment is used, taking polyethylene particles as an insulating material, the fan 3 in the second connecting section 52 is started to generate suction, and the polyethylene particles are sucked in through the first connecting section 51, and then enter the constant temperature pipe 6 through the third connecting section 53. The constant temperature pipe 6 is located in the bin body 8, and the space in the bin body 8 except the constant temperature pipe 6 is circulated with constant temperature bath liquid, which flows in from the liquid inlet 13 and flows out from the liquid outlet 7. The temperature of the constant temperature bath is consistent with the control temperature of the insulation material, so that The space in the bin 8 is kept at a constant temperature, thereby raising the temperature of the low-temperature polyethylene particles to a certain extent and avoiding the constant temperature pipe 6. The temperature difference between the different polyethylene particles flowing in the pipe is too large. When the bath temperature is well controlled, the temperature difference can be minimized, thereby avoiding the problem of uneven plasticization caused by direct extrusion of particles at different temperatures, resulting in unstable glue discharge and fluctuations in the thickness of the cable insulation layer. Finally, the polyethylene particles enter the screw through the feed pipe 12 for extrusion after passing through the constant temperature pipe 6.

[0022] In this embodiment, the thermostatic pipe 6 is spirally wound in the bin body 8. This arrangement can ensure that the polyethylene particles entering the thermostatic pipe 6 later are unlikely to be randomly mixed with the polyethylene particles entering the thermostatic pipe 6 earlier, and the polyethylene particles entering the thermostatic pipe 6 later are clearly separated from the polyethylene particles entering the thermostatic pipe 6 earlier. When materials from different manufacturers or different batches of the same manufacturer are used in succession, different polyethylene particles will also be used in the order of feeding, which can facilitate the operator to adjust the subsequent screw speed in a targeted manner, making the adjustment more convenient and the number of adjustments very small, reducing the generation of unqualified products, and greatly improving the processing efficiency.

[0023] The cross-sectional size of the constant temperature pipe 6 can be smaller than or equal to the cross-sectional size of the suction pipe 5 and / or the discharge pipe 12. In this embodiment, it can be further ensured that the polyethylene particles entering the constant temperature pipe 6 later are difficult to be randomly mixed with the polyethylene particles entering the constant temperature pipe 6 earlier.

[0024] In a preferred embodiment, the constant temperature bath liquid is water, which is low in cost and easy to control. In other embodiments, it can also be other organic or inorganic solutions.

[0025] In one embodiment, a dust collecting bin 2 is connected to one end of the second connecting section 52 that is connected to the atmosphere, a first filter screen 4 is provided on the connecting path between the second connecting section 52 and the first connecting section 51, and a second filter screen 1 is provided at the place where the dust collecting bin 2 is connected to the atmosphere. In this embodiment, the dust content of the insulating material entering the constant temperature pipe 6 can be greatly reduced. The reduction of the dust content of the insulating material can avoid the problem of white spots on the insulating material during extrusion caused by dust. The mesh number of the first filter screen 4 is lower than the mesh number of the second filter screen 1. Due to the presence of the first filter screen 4, the dust will be sucked into the second connecting section, and due to the presence of the second filter screen 1, the dust will not enter the atmosphere, so the dust can be collected in the dust collecting bin 2, which is convenient for dust cleaning. In one embodiment, the second filter screen 1 can be disassembled to facilitate dust cleaning; in another embodiment, the dust collecting bin 2 can be disassembled as a whole, or it can be disposable, which is convenient for dust cleaning.

[0026] In an optional embodiment, the height of the liquid inlet 13 is lower than the height of the liquid outlet 7. Thus, the lower part of the constant temperature bath liquid body 8 flows to the upper part of the body 8, which can ensure that the constant temperature bath liquid and the insulating material in the constant temperature pipe 6 fully exchange heat, thereby achieving a better insulation effect.

[0027] In a further embodiment, a discharge pipe 11 is provided on the feed pipe 12, and a valve body 10 is provided on the discharge pipe 11. When the insulating material in the suction bin needs to be replaced, the valve body 10 can be opened to discharge the original particles in the bin from the discharge pipe 11, thereby conveniently replacing the insulating material.

[0028] At least one material level sensor alarm 9 may be provided on the silo 8. When only one material level sensor alarm 9 is provided, it should preferably be provided in the lower area of ​​the silo 8 to detect and warn of low material level. When multiple material level sensors alarms 9 are provided, the operator can be prompted in stages to the amount of insulating material in the suction silo.

[0029] It is conceivable that a bath liquid box can be set up for storing constant temperature bath liquid. A heating body is provided in the bath liquid box for heating the constant temperature bath liquid. The bath liquid box, the liquid inlet 13, the space in the warehouse body 8 except the constant temperature pipe 6 and the liquid outlet 7 constitute a circulation loop. A pump body is provided on the circulation loop to ensure the circulation of the constant temperature bath liquid.

[0030] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creative design without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A suction silo, characterized in that: It comprises a silo body and a constant temperature pipe; the top of the silo body is connected to a material suction pipe, and the bottom of the silo body is connected to a material discharge pipe; the material suction pipe comprises a first connecting section, a second connecting section and a third connecting section which are interconnected, the first connecting section is used for feeding, a fan is arranged on the second connecting section, and one end of the second connecting section is connected to the atmosphere; The constant temperature pipe is spirally coiled in the warehouse body, one end of the constant temperature pipe is connected to the third connecting section, and the other end of the constant temperature pipe is connected to the unloading pipe; the warehouse body is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are connected to the space in the warehouse body except the constant temperature pipe, and the constant temperature bath liquid flows in the space in the warehouse body except the constant temperature pipe.

2. A suction bin according to claim 1, characterized in that: One end of the second connecting section connected to the atmosphere is connected to a dust collecting bin, a first filter is arranged on the connecting path between the second connecting section and the first connecting section, a second filter is arranged at the connection point between the dust collecting bin and the atmosphere, and the mesh number of the first filter is lower than the mesh number of the second filter.

3. A suction bin according to claim 2, characterized in that: The height of the liquid inlet is lower than that of the liquid outlet.

4. A suction bin according to claim 1, characterized in that: A discharge pipe is arranged on the feed pipe, and a valve body is arranged on the discharge pipe.

5. A suction bin according to claim 1, characterized in that: At least one material level sensor alarm is arranged on the silo body, and at least one of the material level sensor alarms is located in the lower area of ​​the silo body.

6. A suction bin according to claim 1, characterized in that: The cross-sectional size of the constant temperature pipe is smaller than or equal to the cross-sectional size of the suction pipe and / or discharge pipe.

7. A suction bin according to claim 1, characterized in that: It also includes a bath liquid box, in which a heating body is arranged. The bath liquid box, the liquid inlet, the space in the warehouse except the constant temperature pipe and the liquid outlet constitute a circulation loop, and a pump body is arranged on the circulation loop.

8. A suction bin according to any one of claims 1 to 7, characterized in that: The constant temperature bath liquid is water.

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