Feeding device and polyimide preparation equipment

Abstract

The utility model discloses a feeding device and polyimide preparation equipment, and relates to the field of chemical fiber polymerization feeding, the feeding device comprises a material containing bin, a reaction kettle, a weighing assembly and a spraying assembly, the material containing bin is used for containing raw materials; connecting with the reaction kettle; the weighing assembly comprises a weighing bin, a weight sensor, a first controller and a first valve, the weighing bin is connected with the containing bin and connected with the reaction kettle through the first valve, raw materials are output into the reaction kettle, the weight sensor is arranged in the weighing bin and detects the weight of the raw materials in the weighing bin, the first controller is electrically connected with the weight sensor and the first valve, and the first controller is electrically connected with the first valve. Opening and closing of the first valve are controlled according to a detection result of the weight sensor; the spraying assembly comprises at least one spray head, and the spray head is arranged in the weighing bin and sprays washing liquid to the side wall of the weighing bin; thus, automatic feeding is achieved, the feeding accuracy can be improved, the preparation quality of chemical fibers can be improved, workers can be prevented from making contact with raw materials, and a safe working environment is provided for the workers.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical fiber polymerization feeding, in particular to a feeding device and polyimide preparation equipment. Background Art

[0002] During the polymerization reaction stage of chemical fibers (such as polyimide), multiple raw materials need to be accurately measured and added to the reactor in sequence for reaction. Among them, liquid raw materials can be accurately controlled by instruments such as gear flow meters, but solid raw materials are generally added manually, weighed manually using an electronic scale, and then added to the reactor for reaction. The manual addition method will result in inaccurate and large deviations in the amount of solid raw materials added, affecting the preparation quality of chemical fibers. In addition, solid raw materials are harmful to the human body and affect the health of workers. Utility Model Content

[0003] The main purpose of the utility model is to provide a feeding device and polyimide preparation equipment capable of achieving accurate feeding, aiming to solve the above problems.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a feeding device, which comprises:

[0005] A material storage bin for containing raw materials;

[0006] A reaction kettle connected to the material storage bin;

[0007] A weighing assembly, comprising a weighing silo, a weight sensor, a first controller and a first valve, wherein the weighing silo is connected to the material storage silo and is connected to the reactor through the first valve, and is used to output the raw materials input from the material storage silo to the reactor, the weight sensor is provided in the weighing silo, and is used to detect the weight of the raw materials in the weighing silo, the first controller is electrically connected to the weight sensor and the first valve, and controls the switch of the first valve according to the detection result of the weight sensor; and,

[0008] The spray assembly includes at least one spray head, which is arranged in the weighing silo and is used for spraying flushing liquid toward the side wall of the weighing silo.

[0009] Optionally, the material storage bin, the reaction kettle and the weighing bin are sequentially connected in the up-down direction.

[0010] Optionally, the weighing silo includes a first cavity and a second cavity connected in sequence along the up and down directions, the nozzle is arranged in the first cavity, and at least some of the multiple nozzles are arranged toward the side wall of the second cavity, and the second cavity is tapered from its upper end to its lower end.

[0011] Optionally, the feeding device further comprises a vibration component, and the vibration component comprises:

[0012] at least one vibrator, the vibrator being disposed on the outer side wall of the weighing silo; and

[0013] The second controller is electrically connected to the vibrator to control the working state of the vibrator.

[0014] Optionally, the feeding device further comprises a feeder, which is disposed in the material storage bin and has an output end connected to the weighing bin so as to transport the raw materials in the material storage bin to the weighing bin.

[0015] Optionally, the feeder is a screw conveyor.

[0016] Optionally, the feeding device further comprises a second valve, and the material storage bin is connected to the weighing bin via the second valve;

[0017] The first controller is electrically connected to the second valve to control the opening and closing of the second valve.

[0018] Optionally, the spray assembly further includes:

[0019] A water tank, used to contain the flushing liquid;

[0020] a third valve, the water tank is connected to the spray head via the third valve;

[0021] a flow meter, disposed in the water tank, for measuring the flow rate of the flushing liquid delivered from the water tank to the nozzle; and

[0022] The third controller is electrically connected to the flow meter and the third valve to control the switch of the third valve according to the detection result of the flow meter.

[0023] Optionally, the feeding device further comprises:

[0024] A first hose is provided at the feed port of the weighing silo and connected to the material storage silo; and

[0025] The second hose is arranged at the discharge port of the weighing silo and is connected to the reaction kettle.

[0026] The utility model also provides a polyimide preparation device, comprising a feeding device;

[0027] Wherein, the feeding device comprises:

[0028] A material storage bin for containing raw materials;

[0029] A reaction kettle connected to the material storage bin;

[0030] A weighing assembly, comprising a weighing silo, a weight sensor, a first controller and a first valve, wherein the weighing silo is connected to the material storage silo and is connected to the reactor through the first valve, and is used to output the raw materials input from the material storage silo to the reactor, the weight sensor is provided in the weighing silo, and is used to detect the weight of the raw materials in the weighing silo, the first controller is electrically connected to the weight sensor and the first valve, and controls the switch of the first valve according to the detection result of the weight sensor; and,

[0031] The spray assembly includes at least one spray head, which is arranged in the weighing silo and is used for spraying flushing liquid toward the side wall of the weighing silo.

[0032] In the technical solution of the utility model, the feeding device includes a feeding bin, a reactor, a weighing component and a spraying component. The raw materials in the feeding bin are transported to the weighing bin. The raw materials transported to the weighing bin can be weighed and detected by the weight sensor, and the first controller can control the switch of the first valve according to the detection result of the weight sensor, so as to control the amount of raw materials transported to the reactor. In this way, the automatic feeding of the raw materials is realized, which can not only improve the accuracy of the raw material feeding and the preparation quality of chemical fibers, but also avoid the staff from contacting the raw materials, thereby providing a safe working environment for the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0034] Figure 1 This is a structural schematic diagram of an embodiment of the feeding device provided by the utility model.

[0035] Description of Figure Numbers:

[0036]

[0037]

[0038] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0042] During the polymerization reaction stage of chemical fibers (such as polyimide), multiple raw materials need to be accurately measured and added to the reactor in sequence for reaction. Among them, liquid raw materials can be accurately controlled by instruments such as gear flow meters, but solid raw materials are generally added manually, weighed manually using an electronic scale, and then added to the reactor for reaction. The manual addition method will result in inaccurate and large deviations in the amount of solid raw materials added, affecting the preparation quality of chemical fibers. In addition, solid raw materials are harmful to the human body and affect the health of workers.

[0043] In view of this, the utility model provides a feeding device 100, Figure 1 This is an embodiment of a feeding device 100 provided by the present utility model.

[0044] See also Figure 1The feeding device 100 includes a material storage bin 1, a reactor 2, a weighing assembly 3 and a spray assembly. The material storage bin 1 is used to accommodate raw materials; the reactor 2 is connected to the material storage bin 1; the weighing assembly 3 includes a weighing bin 31, a weight sensor 32, a first controller 33 and a first valve 34. The weighing bin 31 is connected to the material storage bin 1 and is connected to the reactor 2 through the first valve 34, and is used to output the raw materials input from the material storage bin 1 to the reactor 2. The weight sensor 32 is provided in the weighing bin 31 and is used to detect the weight of the raw materials in the weighing bin 31. The first controller 33 is electrically connected to the weight sensor 32 and the first valve 34 to control the switch of the first valve 34 according to the detection result of the weight sensor 32; the spray assembly includes at least one nozzle 4, which is provided in the weighing bin 31 and is used to spray flushing liquid to the side wall of the weighing bin 31.

[0045] In the technical solution of the utility model, the feeding device 100 includes a feeding bin 1, a reactor 2, a weighing component 3 and a spraying component. The raw materials in the feeding bin 1 are transported to the weighing bin 31. The raw materials transported to the weighing bin 31 can be weighed and detected by the weight sensor 32, and the first controller 33 can control the switch of the first valve 34 according to the detection result of the weight sensor 32, so as to control the amount of the raw materials transported to the reactor 2. In this way, the automatic feeding of the raw materials is realized, which can not only improve the accuracy of the raw material feeding and the preparation quality of the chemical fiber, but also avoid the staff from contacting the raw materials, and provide a safe working environment for the staff.

[0046] In addition, by setting up the spray assembly, that is, multiple nozzles 4, the liquid can be sprayed toward the side wall of the weighing silo 31 during the feeding process of the raw materials to flush the raw materials retained on the side wall of the weighing silo 31, so that part of the raw materials are flushed into the reactor 2 for polymerization, thereby reducing production losses and lowering production costs.

[0047] It should be noted that, in the present invention, the raw material can be either solid or liquid.

[0048] It should also be noted that, in the present invention, the form of the first valve 34 is not limited, and it can be a pneumatic valve, or a solenoid valve, etc.

[0049] For further information, see Figure 1 The material storage bin 1, the reaction kettle 2 and the weighing bin 31 are sequentially connected and arranged in the up-down direction; thus, the transportation of the raw materials is convenient.

[0050] For further information, see Figure 1 The weighing silo 31 includes a first cavity 311 and a second cavity 312 which are connected in sequence along the up-down direction. The nozzle 4 is arranged in the first cavity 311, and at least some of the nozzles 4 are arranged toward the side wall of the second cavity 312. The second cavity 312 is tapered from its upper end to its lower end.

[0051] It should be noted that, in the present invention, at least some of the multiple nozzles 4 are arranged toward the side wall of the second cavity 312, which can be understood as all the nozzles 4 are arranged toward the side wall of the second cavity 312. Of course, it can also be that some of the multiple nozzles 4 are arranged toward the side wall of the second cavity 312, and the other part are arranged toward the side wall of the first cavity 311.

[0052] For details, please refer to Figure 1 The feeding device 100 further includes a vibration assembly, which includes at least one vibrator 5 and a second controller. The vibrator 5 is disposed on the outer wall of the weighing bin 31. The second controller is electrically connected to the vibrator 5 to control the working state of the vibrator 5. In this way, the vibrator 5 can act on the weighing bin 31 so that the raw materials can be evenly discharged into the reactor 2, and the raw materials retained on the side wall of the weighing bin 31 can be vibrated into the reactor 2 for polymerization.

[0053] For details, please refer to Figure 1 The feeding device 100 also includes a feeder 6, which is arranged in the material storage bin 1, and an output end of the feeder 6 is connected to the weighing bin 31 to transport the raw materials in the material storage bin 1 to the weighing bin 31.

[0054] For further information, see Figure 1 , the feeder 6 is a screw conveyor.

[0055] For details, please refer to Figure 1 The feeding device 100 further includes a second valve 7, through which the material storage bin 1 is connected to the weighing bin 31; the first controller 33 is electrically connected to the second valve 7 to control the opening and closing of the second valve 7. In this way, the second valve 7 can be controlled by the first controller 33 according to the detection result of the weight sensor 32, thereby controlling the amount of the raw material delivered from the material storage bin 1 to the weighing bin 31 to avoid exceeding the maximum capacity of the weighing bin 31.

[0056] It should be noted that, in the present invention, the form of the second valve 7 is not limited, and it can be a pneumatic valve, or a solenoid valve, etc.

[0057] Specifically, the spray assembly further includes a water tank, a third valve, a flow meter and a third controller. The water tank is used to contain the flushing liquid; the water tank is connected to the spray head 4 through the third valve; the flow meter is provided in the water tank and is used to measure the flow of the flushing liquid transported from the water tank to the spray head 4; the third controller is electrically connected to the flow meter and the third valve to control the switch of the third valve according to the detection result of the flow meter. In this way, the amount of liquid sprayed from the spray head 4 can be controlled.

[0058] Furthermore, the third controller is also electrically connected to the weight sensor 32 to control the flow rate of the liquid according to the detection result of the weight sensor 32 to avoid excessive or insufficient delivery of the liquid.

[0059] For details, please refer to Figure 1 The feeding device 100 also includes a first hose 8 and a second hose 9. The first hose 8 is arranged at the feed port of the weighing silo 31 and is connected to the material storage silo 1; the second hose 9 is arranged at the discharge port of the weighing silo 31 and is connected to the reactor 2.

[0060] It should be noted that, in the present invention, the first controller 33, the second controller and the third controller may be the same controller, or three controllers that are separately arranged. Of course, only two of them may be the same controller.

[0061] The utility model also provides a polyimide preparation device, which includes a feeding device 100 .

[0062] It should be noted that the feeding device 100 adopts the feeding device 100 described above, that is, the polyimide preparation equipment has all the technical features of all the embodiments of the above-mentioned feeding device 100, and also has all the technical effects brought by all the above-mentioned technical features, which will not be described one by one here.

[0063] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A feeding device, characterized in that: The feeding device comprises: A material storage bin for containing raw materials; A reaction kettle connected to the material storage bin; A weighing assembly, comprising a weighing silo, a weight sensor, a first controller and a first valve, wherein the weighing silo is connected to the material storage silo and is connected to the reactor through the first valve, and is used to output the raw materials input from the material storage silo to the reactor, the weight sensor is provided in the weighing silo, and is used to detect the weight of the raw materials in the weighing silo, the first controller is electrically connected to the weight sensor and the first valve, and controls the switch of the first valve according to the detection result of the weight sensor; and, The spray assembly includes at least one spray head, which is arranged in the weighing silo and is used for spraying flushing liquid toward the side wall of the weighing silo.

2. The feeding device according to claim 1, characterized in that The material storage bin, the reaction kettle and the weighing bin are sequentially connected and arranged along the up-down direction.

3. The feeding device according to claim 2, characterized in that The weighing silo includes a first cavity and a second cavity which are connected in sequence along the up-down direction. The nozzle is arranged in the first cavity, and at least some of the plurality of nozzles are arranged toward the side wall of the second cavity. The second cavity is tapered from its upper end to its lower end.

4. The feeding device according to claim 2, characterized in that The feeding device further comprises a vibration assembly, and the vibration assembly comprises: at least one vibrator, the vibrator being disposed on the outer side wall of the weighing silo; and The second controller is electrically connected to the vibrator to control the working state of the vibrator.

5. The feeding device according to claim 1, characterized in that: The feeding device also includes a feeder, which is arranged in the material storage bin and has an output end connected to the weighing bin to transport the raw materials in the material storage bin to the weighing bin.

6. The feeding device according to claim 5, characterized in that The feeder is a screw conveyor.

7. The feeding device according to claim 1, characterized in that The feeding device further comprises a second valve, and the material storage bin is connected to the weighing bin via the second valve; The first controller is electrically connected to the second valve to control the opening and closing of the second valve.

8. The feeding device according to claim 1, characterized in that The spray assembly also includes: A water tank, used to contain the flushing liquid; a third valve, the water tank is connected to the spray head via the third valve; a flow meter, disposed in the water tank, for measuring the flow rate of the flushing liquid delivered from the water tank to the nozzle; and The third controller is electrically connected to the flow meter and the third valve to control the switch of the third valve according to the detection result of the flow meter.

9. The feeding device according to claim 1, characterized in that: The feeding device also includes: A first hose is provided at the feed port of the weighing silo and connected to the material storage silo; and The second hose is arranged at the discharge port of the weighing silo and is connected to the reaction kettle.

10. A polyimide preparation device, characterized in that: It comprises a feeding device as described in claims 1-9.

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