Chemical fiber recycling material pretreatment reaction kettle

Abstract

The utility model discloses a kind of chemical fibre recycled material pretreatment reaction kettle, belong to spinning equipment technical field, this kind of chemical fibre recycled material pretreatment reaction kettle, including kettle body and electromagnetic heating control cabinet, the kettle body is three-layer structure, its inner layer is provided with pressure vessel layer, the pressure vessel layer directly contacts material, the intermediate layer of kettle body is provided with electromagnetic heating coil, and the electromagnetic heating coil is electrically connected in electromagnetic heating control cabinet, the outermost layer of kettle body is provided with heat preservation protective shell, and the front, middle and rear of kettle body are provided with temperature measuring probe. Heating is carried out to reaction kettle using electromagnetic induction coil cooperation electromagnetic heating control cabinet, heat loss is reduced in heating process, energy consumption cost is lower, and the response speed of heating is faster, without preheating and waiting, the temperature of reaction kettle is measured in real time by temperature measuring probe, cooperate electromagnetic heating control cabinet accurate temperature control, with better use effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of spinning equipment, specifically relating to a pretreatment reactor for recycled chemical fiber materials. Background Technology

[0002] The pretreatment reactor for recycled chemical fiber materials is a device for deep purification and impurity removal of recycled raw materials extruded by screw melt extrusion, and it is a key link in the chemical fiber textile cycle. In the volatilization process of the pretreatment reactor, it is necessary to control the internal temperature of the reactor at a high temperature of 200-300 degrees Celsius. The current practice is to use a thermal oil furnace to heat the thermal oil to the required process temperature, and then use a pump to circulate it on the reactor, so that the temperature of the thermal oil is transferred to the reactor for heating. However, this method has huge energy consumption due to heat loss in the heating furnace and thermal circulation, and requires a long preheating process with manual supervision, resulting in huge time and labor costs. At the same time, there is also a safety hazard of thermal oil leakage.

[0003] To address this issue, we designed a pretreatment reactor for recycled chemical fiber materials, providing an alternative technical solution. Utility Model Content

[0004] The purpose of this invention is to provide a pretreatment reactor for recycled chemical fiber materials to solve the problems mentioned in the background art regarding the use of existing pretreatment reactors.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pretreatment reactor for recycled chemical fiber materials, comprising a reactor body and an electromagnetic heating control cabinet. The reactor body has a three-layer structure consisting of a pressure vessel layer, an electromagnetic heating coil, and a thermal insulation protective shell arranged sequentially from the inside out. The electromagnetic heating coil is electrically connected to the electromagnetic heating control cabinet. The outermost layer of the reactor body is provided with a thermal insulation protective shell. Temperature probes are provided at the front, middle, and rear of the reactor body.

[0006] Preferably, the vessel body is equipped with a stirring device, which includes a stirring shaft and a stirring paddle disposed on the stirring shaft.

[0007] Preferably, the electromagnetic heating coil is tightly wound and is not in contact with the pressure vessel layer.

[0008] Preferably, the thermal insulation protective shell is provided with an asbestos insulation layer and a rare earth insulation layer.

[0009] Preferably, the top of the vessel body is provided with an exhaust port, and the bottom of the vessel body is provided with a feed port and a discharge port.

[0010] Compared with the prior art, the beneficial effects of this utility model are: The reactor is heated by using an electromagnetic induction coil in conjunction with an electromagnetic heating control cabinet. This reduces heat loss and lowers energy costs. It also provides a faster heating response, eliminating the need for preheating. The reactor temperature is measured in real time by a temperature probe, and the electromagnetic heating control cabinet provides precise temperature control, resulting in better performance. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the vessel body structure of this utility model.

[0012] In the diagram: 1. Vessel body; 2. Electromagnetic heating control cabinet; 3. Exhaust port; 4. Discharge port; 5. Feed port; 6. Temperature probe; 7. Stirring shaft; 8. Stirring paddle; 9. Insulation and protective shell; 10. Electromagnetic heating coil; 11. Pressure vessel layer. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Reference Figure 1-2 The vessel includes a vessel body 1 and an electromagnetic heating control cabinet 2. The vessel body 1 has a three-layer structure consisting of a pressure vessel layer 11, an electromagnetic heating coil 10, and a heat-insulating protective shell 9 arranged sequentially from the inside out. The electromagnetic heating coil 10 is electrically connected to the electromagnetic heating control cabinet 2. The outermost layer of the vessel body 1 is provided with a heat-insulating protective shell 9. Temperature probes 6 are provided at the front, middle, and rear of the vessel body 1.

[0015] This technical solution establishes a pretreatment reactor for recycled chemical fiber materials using electromagnetic heating. The reactor body 1 has a three-layer structure. The pressure vessel layer 11 directly contacts the material and is made of high-temperature and corrosion-resistant material (such as 316L stainless steel / Hastelloy alloy). The inner surface of the pressure vessel layer 11 is polished to reduce the risk of wall adhesion. The middle layer is an electromagnetic heating layer, with a medium-frequency electromagnetic induction heating coil tightly wound on the outer wall of the pressure vessel layer 11. Non-contact heating is achieved through the eddy current effect. The electromagnetic heating coil 10 is electrically connected to the electromagnetic heating control cabinet 2, and the power output is controlled through the electromagnetic heating cabinet. The outermost layer of the reactor body 1 is equipped with a heat-insulating protective shell 9, which covers the electromagnetic heating coil 10, reducing heat loss and lowering the system's energy consumption. At the same time, it effectively isolates oxygen, reducing the oxidation and aging of the electromagnetic heating coil 10 and extending the service life of the device.

[0016] Furthermore, a stirring device is installed on the vessel body 1, which includes a stirring shaft 7 and a stirring paddle 8 disposed on the stirring shaft 7.

[0017] With this technical solution, the stirring device is set horizontally, and the stirring shaft 7 drives the stirring paddle 8 to rotate to achieve homogeneous dispersion of the raw materials and avoid local overheating that could cause the raw materials to coke. Different types of stirring paddles 8 are selected based on the viscosity of the raw materials, and the shear angle of the stirring paddle 8 is set. A sealing structure is set at the connection between the stirring shaft 7 and the vessel body 1 to maintain the airtightness of the vessel body 1.

[0018] Furthermore, the electromagnetic heating coil 10 is tightly wound, and the electromagnetic heating coil 10 is not in contact with the pressure vessel layer 11.

[0019] With this technical solution, the electromagnetic heating coil 10 is tightly wound on the outer wall of the pressure vessel layer 11, and the winding density of the electromagnetic heating coil 10 at different positions on the pressure vessel layer 11 remains consistent, thereby ensuring that the heating temperature of the reactor is uniform.

[0020] Furthermore, the thermal insulation protective shell 9 is provided with an asbestos insulation layer and a rare earth insulation layer.

[0021] The thermal insulation protective shell 9 consists of two layers: an asbestos insulation layer and a rare earth insulation layer. The asbestos insulation layer is located in the inner layer, which reflects heat radiation inward to a certain extent. The rare earth insulation layer is located in the outer layer, which effectively isolates heat and reduces heat exchange between the reactor and the outside environment, thereby reducing energy consumption and lowering the operating cost of the device.

[0022] Furthermore, the top of the vessel body 1 is provided with an exhaust port 3, and the bottom of the vessel body 1 is provided with a feed port 5 and a discharge port 4.

[0023] Working principle: The vessel body 1 is designed with a three-layer structure. The pressure vessel layer 11 is in direct contact with the material and is made of high-temperature and corrosion-resistant material. The inner surface of the pressure vessel layer 11 is polished to reduce the risk of adhesion to the wall. The middle layer is an electromagnetic heating layer. A medium-frequency electromagnetic induction heating coil is tightly wound on the outer wall of the pressure vessel layer 11. Non-contact heating is achieved through the eddy current effect. The electromagnetic heating coil 10 is electrically connected to the electromagnetic heating control cabinet 2, and the power output is controlled through the electromagnetic heating cabinet. The outermost layer of the vessel body 1 is equipped with a heat insulation protective shell 9, which covers the electromagnetic heating coil 10, reducing heat loss and making the system more energy-efficient. At the same time, it effectively isolates oxygen, reducing the oxidation and aging of the electromagnetic heating coil 10, and making the device have a longer service life.

[0024] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In the description of this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this invention, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, those skilled in the art can combine different embodiments or examples and features of different embodiments or examples described in this invention without contradiction.

Claims

1. A pretreatment reactor for recycled chemical fiber materials, characterized in that: The vessel includes a vessel body (1) and an electromagnetic heating control cabinet (2). The vessel body (1) has a three-layer structure consisting of a pressure vessel layer (11), an electromagnetic heating coil (10), and a heat-insulating protective shell (9) arranged sequentially from the inside to the outside. The electromagnetic heating coil (10) is electrically connected to the electromagnetic heating control cabinet (2). The outermost layer of the vessel body (1) is provided with a heat-insulating protective shell (9). Temperature probes (6) are provided at the front, middle, and rear of the vessel body (1).

2. The chemical fiber recycled material pretreatment reactor according to claim 1, characterized in that: The vessel body (1) is equipped with a stirring device, which includes a stirring shaft (7) and a stirring paddle (8) disposed on the stirring shaft (7).

3. The chemical fiber recycled material pretreatment reactor according to claim 1, characterized in that: The electromagnetic heating coil (10) is tightly wound and is not in contact with the pressure vessel layer (11).

4. The chemical fiber recycled material pretreatment reactor according to claim 1, characterized in that: The thermal insulation protective shell (9) is provided with an asbestos insulation layer and a rare earth insulation layer.

5. The chemical fiber recycled material pretreatment reactor according to claim 1, characterized in that: The top of the vessel body (1) is provided with an exhaust port (3), and the bottom of the vessel body (1) is provided with an inlet (5) and an outlet (4).

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