Feeding device and reaction equipment

Abstract

The utility model discloses a feeding device and reaction equipment, and relates to the technical field of chemical equipment. The feeding device is used for feeding materials into the reaction kettle and comprises a material storage box, a weighing assembly, a feeding control valve and a controller. Wherein the storage box is arranged at the top of the reaction kettle; the material storage box is arranged on the weighing assembly so as to measure the weight of the material storage box; the feeding control valve is arranged between the storage box and the reaction kettle, an inlet of the feeding control valve is communicated with the storage box, and an outlet of the feeding control valve is communicated with the reaction kettle; the weighing assembly and the feeding control valve are both in signal connection with the controller, and the controller is provided with an input end capable of inputting the opening degree and / or the feeding amount of the feeding control valve. The feeding device is low in cost, the feeding amount and the total feeding amount can be automatically controlled while the structure is simplified, materials flow into the reaction kettle under the driving action of self weight, and energy consumption for conveying the materials is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, and more specifically, to a feeding device. In addition, the utility model also relates to a reaction device including the above feeding device. Background Art

[0002] In the electronic material industry, the synthesis process of precursors is usually carried out in a reaction kettle. Generally, a peristaltic pump or a pipeline pump is used to feed materials into the reaction kettle at a constant speed, and a flow meter between the reaction kettle and the pump body is used to detect the material flow rate, so as to feed materials into the reaction kettle quantitatively. However, when the feeding amount is large, such as more than 20 L / min, there are few peristaltic pumps and pipeline pumps that meet the requirements on the market, and the cost and energy consumption are both high.

[0003] In summary, how to reduce the cost of the feeding device while controlling the feeding amount and the total feeding amount is an urgent problem to be solved by those skilled in the art at present. Summary of the Utility Model

[0004] In view of this, an object of the utility model is to provide a feeding device, which has a low cost on the basis of being able to automatically control the feeding amount and the total feeding amount.

[0005] Another object of the utility model is to provide a reaction device including the above feeding device.

[0006] In order to achieve the above object, the utility model provides the following technical scheme:

[0007] A feeding device for feeding materials into a reaction kettle, comprising:

[0008] A storage tank, which is used to be arranged on the top of the reaction kettle;

[0009] A weighing assembly, the storage tank is arranged on the weighing assembly to measure the weight of the storage tank;

[0010] A feed control valve, which is used to be arranged between the storage tank and the reaction kettle, and the inlet of the feed control valve is conductively connected to the storage tank, and the outlet of the feed control valve is used to be conductively connected to the reaction kettle;

[0011] A controller, the weighing assembly and the feed control valve are both signal-connected to the controller, and the controller has an input end capable of inputting the opening degree and / or the feeding amount of the feed control valve.

[0012] Preferably, a feeding ring coaxially arranged with the reaction kettle itself is sleeved inside the reaction kettle, and the feeding ring is located at the top of the reaction kettle;

[0013] The feeding ring has a feeding port and a discharging port that communicates with the inner cavity of the reaction kettle. The outlet of the feeding control valve is connected to the feeding port in a conducting manner, and the feeding port and the discharging port are uniformly arranged along the circumferential direction of the feeding ring.

[0014] Preferably, the feeding ring includes at least two split-axis segments. A plurality of adjacent split-axis segments can be inserted to form an annular pipe body, and a plurality of the split-axis segments can all pass through the manhole of the reaction kettle.

[0015] Preferably, the cross-sectional width of the discharging port on the side close to the feeding port is smaller than the cross-sectional width of a plurality of discharging ports on the side far from the feeding port.

[0016] Preferably, the discharging port includes 6 first discharging ports, 6 second discharging ports, and 7 third discharging ports;

[0017] The diameter of the second discharging port is 1 / 19 of the diameter of the feeding port. The diameter of the first discharging port is 0.9 times the diameter of the second discharging port, and the diameter of the third discharging port is 1.1 times the diameter of the second discharging port;

[0018] The first discharging port, the second discharging port, and the third discharging port are symmetrically and uniformly distributed, and the axis of symmetry is the radial line of the feeding ring passing through the center of the feeding port.

[0019] Preferably, one feeding ring includes three split-axis segments, and the feeding port is located at the central position along the arc length direction of one split-axis segment.

[0020] Preferably, the discharging port is located on the bottom side of the feeding ring, and the bottom end of the discharging port is inclined towards the side close to the axis of the reaction kettle;

[0021] A feeding pipe is inserted into the feeding port, and the feeding pipe passes through the side wall of the reaction kettle and extends to the outside of the reaction kettle.

[0022] Preferably, a delivery pump is connected to the top of the storage tank in a conducting manner to convey materials into the storage tank, and the delivery pump is in signal connection with the controller.

[0023] Preferably, an overflow port is provided at the middle height position of the circumferential surface of the storage tank, and the distance from the overflow port to the top of the storage tank is less than the distance to the bottom of the storage tank;

[0024] And / or, the weighing assembly, the feeding control valve, and the controller are arranged on the base, and the reaction kettle can be arranged on the base.

[0025] A reaction device includes a reaction kettle and also includes the feeding device provided in any one of the above.

[0026] The feeding device provided by the utility model has a hollow storage bin for storing materials. The storage bin is arranged above the weighing assembly, so that the weight of the materials in the storage bin can be measured by the weighing assembly. The storage bin is located at the top of the reactor, and a feeding control valve is arranged between the storage bin and the reactor. The inlet of the feeding control valve is communicated with the storage bin, and the outlet is communicated with the reactor. When in use, after the materials flow out of the storage bin, they can automatically flow towards the feeding control valve under the action of their own weight. When the feeding control valve is opened, the materials can continue to flow into the reactor.

[0027] The beneficial effects are as follows. The weighing assembly and the feeding control valve are both connected to the controller by signals. When in use, the opening degree of the feeding control valve can be automatically adjusted through the controller to control the materials to flow into the reactor according to a preset flow rate. Moreover, the controller and the weighing assembly have a chain reaction. According to the real-time weight of the storage bin measured by the weighing assembly, when the reduced weight of the storage bin reaches the weight of the materials to be added to the reactor, the feeding control valve is automatically adjusted to be closed through the controller, and the injection of materials into the reactor is stopped, so as to control a quantitative amount of materials to flow into the reactor. With such a setting, the cost of this feeding device is relatively low, and while simplifying the structure, it can automatically control the feeding amount and the total feeding amount. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0029] Figure 1 It is a schematic structural diagram of a specific embodiment provided by the present utility model;

[0030] Figure 2 It is a schematic structural diagram of the feeding ring of a specific embodiment provided by the present utility model;

[0031] Figure 3 For Figure 2 The sectional view of the A-A section in

[0032] Reference Signs:

[0033] 1 - Reactor; 11 - Manhole; 2 - Storage Bin; 3 - Weighing Assembly; 4 - Feeding Control Valve; 5 - Controller; 6 - Feeding Ring; 61 - Discharge Port; 611 - First Discharge Port; 612 - Second Discharge Port; 613 - Third Discharge Port; 62 - Feed Port; 601 - Split Shaft Section; 7 - Feed Pipe; 8 - Delivery Pump. Detailed Embodiments

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0035] The core of the present utility model is to provide a feeding device, which has a low cost on the basis of being able to automatically control the feeding amount and the total feeding amount. Another core of the present utility model is to provide a reaction device including the above feeding device.

[0036] Please refer to Figure 1 , the present utility model provides a feeding device for feeding materials into a reaction kettle 1, which includes a storage tank 2, a weighing assembly 3, a feeding control valve 4 and a controller 5. Among them, the storage tank 2 is used to be arranged on the top of the reaction kettle 1; the storage tank 2 is arranged on the weighing assembly 3 to measure the weight of the storage tank 2; the feeding control valve 4 is used to be arranged between the storage tank 2 and the reaction kettle 1, and the inlet of the feeding control valve 4 is conductively connected to the storage tank 2, and the outlet of the feeding control valve 4 is used to be conductively connected to the reaction kettle 1; both the weighing assembly 3 and the feeding control valve 4 are signal-connected to the controller 5, and the controller 5 has an input end capable of inputting the opening degree and / or the feeding amount of the feeding control valve 4.

[0037] As Figure 1 shown, the hollow storage tank 2 is used to store materials, and the storage tank 2 is arranged on the weighing assembly 3. The weighing assembly 3 can adopt an electronic hanging scale or a weighing sensor, etc., so that the weight of the materials in the storage tank 2 can be measured through the weighing assembly 3. And the storage tank 2 is located on the top of the reaction kettle 1, and a feeding control valve 4 is arranged between the storage tank 2 and the reaction kettle 1. The feeding control valve 4 can adopt an electric feeding control valve 4 or a proportional control valve, etc. The inlet of the feeding control valve 4 is conductively connected to the storage tank 2 through a pipeline, and the outlet is conductively connected to the reaction kettle 1 through a pipeline. When in use, after the materials flow out of the storage tank 2, they can automatically flow to the feeding control valve 4 under the action of their own weight. When the feeding control valve 4 is opened, the materials can continue to flow into the reaction kettle 1.

[0038] Furthermore, as Figure 1As shown, the weighing component 3 and the feed control valve 4 are both connected to the controller 5 by signals. During use, the opening degree of the feed control valve 4 can be automatically adjusted through the controller 5 to control the material to flow into the reaction kettle 1 according to the preset flow rate. Moreover, the controller 5 and the weighing component 3 have a chain reaction. According to the real-time weight of the storage tank 2 measured by the weighing component 3, when the reduced weight of the storage tank 2 reaches the weight of the material to be added to the reaction kettle 1, the feed control valve 4 is automatically adjusted to close through the controller 5, and the injection of the material into the reaction kettle 1 is stopped, so as to control a certain amount of material to flow into the reaction kettle 1. With such a setting, the cost of this feeding device is relatively low. While simplifying the structure, it can automatically control the feeding amount and the total feeding amount, and the material flows into the reaction kettle 1 under the action of its own gravity, effectively reducing the energy consumption of transporting the material.

[0039] On the basis of the above embodiment, a feeding ring 6 coaxially arranged with the reaction kettle 1 itself is sleeved inside the reaction kettle 1, and the feeding ring 6 is located at the top of the reaction kettle 1; the feeding ring 6 has a feeding port 62 and a discharging port 61 that conducts the inner cavity of the reaction kettle 1. The outlet of the feed control valve 4 is conductively connected to the feeding port 62, and the feeding port 62 and the discharging port 61 are evenly arranged along the circumferential direction of the feeding ring 6.

[0040] As Figure 1 and Figure 2 shown, in this embodiment, the outlet of the feed control valve 4 is conductively connected to the inner cavity of the reaction kettle 1 through the feeding ring 6. The feeding ring 6 is installed above the inner cavity of the reaction kettle 1, and through holes are provided on the peripheral wall of the feeding ring 6 as the feeding port 62 and the discharging port 61. The feeding port 62 and the discharging port 61 can be square holes or round holes, etc.

[0041] It should be noted that the connection structure between the feeding ring 6 and the reaction kettle 1 is not limited. For example, this feeding device further includes a support rod and a fixing member. The support rod is used for fixedly connecting to the inner wall of the reaction kettle 1, and the fixing member for snap-connecting the feeding ring 6 is arranged on the support rod, as long as the feeding ring 6 can be set on the reaction kettle 1 to function.

[0042] The feed control valve 4 is conductively connected to the feeding port 62. For example, the feed control valve 4 and the feeding ring 6 are conductively connected through a pipe body, and one end of the pipe body is inserted and connected to the outlet of the feed control valve 4, and the other end is inserted into the feeding port 62. Then the material in the feed control valve 4 can flow into the feeding ring 6; furthermore, through the discharging port 61, the material in the feeding ring 6 can flow into the reaction kettle 1.

[0043] The feed inlet 62 and the discharge outlet 61 are evenly arranged along the circumferential direction of the feeding ring 6. For example, four openings are provided on the peripheral wall of the feeding ring 6, one of which serves as the feed inlet 62 and the remaining three serve as the discharge outlets 61, and the included angle between adjacent openings around the central axis of the feeding ring 6 is 90°. Or, ten openings are provided on the peripheral wall of the feeding ring 6, one of which serves as the feed inlet 62 and the remaining nine serve as the discharge outlets 61, and the included angle between adjacent openings around the central axis of the feeding ring 6 is 36°, etc. The feeding ring 6 is coaxially arranged with the reaction kettle 1, so that the material can flow into the reaction kettle 1 more evenly through the feeding ring 6, and the structure of the feeding ring 6 is simple, which further reduces the cost of the feeding device on the premise of realizing uniform feeding.

[0044] On the basis of the above embodiment, the feeding ring 6 includes at least two split shaft segments 601. A plurality of adjacent split shaft segments 601 can be inserted to form an annular tube body, and a plurality of split shaft segments 601 can all pass through the manhole 11 of the reaction kettle 1.

[0045] As Figure 2 shown, the feeding ring 6 includes two or three split shaft segments 601, etc. A plurality of split shaft segments 601 are inserted and matched to form an annular and complete feeding ring 6, and each split shaft segment 601 can pass through the manhole 11. During assembly, first send each split shaft segment 601 into the inner cavity of the reaction kettle 1 through the manhole 11, and then the operator entering the inner cavity of the reaction kettle 1 performs the assembly and installs the feeding ring 6 at the preset position of the reaction kettle 1. With such a setting, the feeding device is applicable to the existing reaction kettle 1 provided with the manhole 11, greatly improving the versatility and practicability of the feeding device.

[0046] It should be noted that the lengths of the split shaft segments 601 can be equal or unequal, as long as they can all pass through the manhole 11 on the reaction kettle 1.

[0047] On the basis of the above embodiment, the cross-sectional width of the discharge outlet 61 on the side close to the feed inlet 62 is smaller than the cross-sectional width of several discharge outlets 61 on the side far from the feed inlet 62. With such a setting, by adjusting the number, distribution mode and size of the discharge outlets 61, the feeding device can convey the material into the reaction kettle 1 more evenly.

[0048] On the basis of the above embodiment, the discharge outlet 61 includes 6 first discharge outlets 611, 6 second discharge outlets 612 and 7 third discharge outlets 613; the diameter of the second discharge outlet 612 is 1 / 19 of the diameter of the feed inlet 62, the diameter of the first discharge outlet 611 is 0.9 times the diameter of the second discharge outlet 612, and the diameter of the third discharge outlet 613 is 1.1 times the diameter of the second discharge outlet 612; the first discharge outlet 611, the second discharge outlet 612 and the third discharge outlet 613 are symmetrically and evenly distributed, and the symmetry axis is the radial line of the feeding ring 6 passing through the center of the feed inlet 62.

[0049] There are 19 discharge ports 61 with the same shape but different sizes opened on the feeding ring 6, namely the first feeding port 62, the second feeding port 62, and the third feeding port 62. The feeding ports 62 and the discharge ports 61 and several others are arranged uniformly around the central axis of the feeding ring 6 at the openings of the feeding ring 6, and the central angle between adjacent openings is 18°. As Figure 2 shown, the feeding port 62 is located at the central position above the feeding ring 6, and the vertical diameter line passes through the central position of the feeding port 62. The first feeding port 62, the second feeding port 62, and the third feeding port 62 with equal numbers and mirror - image distribution about the vertical diameter line are provided on both the right - hand semi - ring and the left - hand semi - ring of the feeding ring 6 along the vertical diameter line. And a second feeding port 62 with a diameter of D is provided on the middle shaft section between the above - mentioned left - hand semi - ring and right - hand semi - ring. In some embodiments, as Figure 3 shown, D is equal to 4.5 mm, and a first feeding port 62 with a diameter of 0.9D is provided on the upper part of the shaft section 601 of the above - mentioned left - hand semi - ring and right - hand semi - ring, and a third feeding port 62 with a diameter of 1.1D is provided on the lower part of the shaft section 601 of the above - mentioned left - hand semi - ring and right - hand semi - ring.

[0050] On the basis of the above - mentioned embodiments, a feeding ring 6 includes three sub - shaft sections 601, and the feeding port 62 is located at the central position along the arc length direction of one sub - shaft section 601.

[0051] As Figure 2 shown, the upper sub - shaft section 601 of the feeding ring 6 is provided with a feeding port 62 and a first discharge port 611, and the feeding port 62 is located at the middle position among the 6 first discharge ports 611; correspondingly, the lower - left sub - shaft section 601 of the feeding ring 6 is provided with 3 second discharge ports 612, 3 third discharge ports 613, and a sub - discharge port 61. Similarly, the lower - right sub - shaft section 601 of the feeding ring 6 is provided with 3 second discharge ports 612, 3 third discharge ports 613, and a sub - discharge port 61. After assembly, the lowermost sub - discharge port 61 of the lower - left sub - shaft section 601 coincides with or is oppositely arranged to the lowermost sub - discharge port 61 of the lower - right sub - shaft section 601 to serve as the third discharge port 613 with a preset size and shape. With such a setting, the feeding device has a simple structure and is convenient to be put into the reaction kettle 1 through the manhole 11.

[0052] On the basis of the above - mentioned embodiments, the discharge port 61 is located on one side of the bottom end of the feeding ring 6, and the bottom end of the discharge port 61 is inclined towards the side close to the axis of the reaction kettle 1. With such a setting, the material will spray towards the center of the reaction kettle 1 after flowing out of the feeding ring 6, effectively preventing the material from sticking to the wall.

[0053] On the basis of the above - mentioned embodiments, a feeding pipe 7 is inserted into the feeding port 62, and the feeding pipe 7 passes through the side wall of the reaction kettle 1 and extends to the outside of the reaction kettle 1. As Figure 1As shown in the figure, a feed pipe 7 is provided on the upper side of the loading ring 6. Preferably, the feed pipe 7 is a straight pipe. The lower end of the feed pipe 7 is inserted into the feed inlet 62 so that the feed pipe 7 and the loading ring 6 are conductively connected. When the feed pipe 7 with a target length extends into the reaction kettle 1 and is inserted into the loading ring 6, the upper end of the feed pipe 7 protrudes outside the reaction kettle 1, facilitating conductive connection to a feed control valve 4 or the like through a pipeline.

[0054] Based on the above embodiment, a delivery pump 8 is conductively connected to the top of the storage tank 2 to deliver materials to the storage tank 2, and the delivery pump 8 is signal-connected to the controller 5. As Figure 1 shown, a through hole is provided in the top of the storage tank 2 to conductively connect the delivery pump 8. During use, the weighing assembly 3 is used to detect the weight of the materials in the storage tank 2 in real time. When the materials in the storage tank 2 are exhausted or consumed to a preset weight, the controller 5 controls the delivery pump 8 to start or stop, enabling automatic replenishment of materials to the storage tank 2.

[0055] Based on the above embodiment, an overflow port is provided at the middle height position of the circumferential surface of the storage tank 2, and the distance from the overflow port to the top of the storage tank 2 is less than the distance to the bottom of the storage tank 2. For example, the overflow port is located at the 3 / 4 height position of the storage tank 2. At this time, the distance from the overflow port to the upper end of the storage tank 2 is 1 / 3 of the distance to the lower end of the storage tank 2. With such a setting, when the materials in the storage tank 2 exceed the preset height, that is, when the material height exceeds the lower edge of the overflow port, the materials can be discharged through the overflow port, effectively controlling the volume of the materials in the storage tank 2.

[0056] Based on the above embodiment, the weighing assembly 3, the feed control valve 4, and the controller 5 are provided on the base, and the reaction kettle 1 can be provided on the base. In this embodiment, the weighing assembly 3, the feed control valve 4, the controller 5, etc. can be arranged on the base through bolts or riveting structures, etc., and there are brackets or seat bodies for installing the reaction kettle 1 on the base. With such a setting, the integrity of this feeding device is relatively strong and its stability is relatively high during use.

[0057] It should be noted that the type of the base is not limited. For example, the base includes a T-shaped groove platform at the bottom and several triangular or U-shaped bracket structures installed on its top, as long as the above functions can be satisfied.

[0058] In addition to the above feeding device, the present utility model also provides a reaction device including the feeding device disclosed in the above embodiment. For the structures of other parts of this reaction device, please refer to the prior art and will not be elaborated herein.

[0059] It should be noted that the relational terms such as "first" and "second" described above are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities; the "upper surface, lower surface" and the orientation words "upper, lower, left, right" described above are all defined based on the accompanying drawings of the specification.

[0060] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts between the embodiments, reference can be made to each other.

[0061] The feeding device and the reaction equipment provided by the present utility model have been introduced in detail above. Specific examples are used herein to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the present utility model.

Claims

1. A feeding device for feeding into a reaction kettle (1), characterized in that: include: A material storage box (2), which is arranged on the top of the reaction kettle (1); A weighing assembly (3), the material storage box (2) being arranged on the weighing assembly (3) for measuring the weight of the material storage box (2); A feed control valve (4) is arranged between the material storage box (2) and the reaction kettle (1), and the inlet of the feed control valve (4) is connected to the material storage box (2), and the outlet of the feed control valve (4) is connected to the reaction kettle (1); The controller (5) is connected to the weighing assembly (3) and the feed control valve (4) by signals, and the controller (5) has an input terminal capable of inputting the opening degree and / or feed amount of the feed control valve (4).

2. The feeding device according to claim 1, characterized in that: The interior of the reactor (1) is sleeved with a loading ring (6) coaxially arranged therewith, and the loading ring (6) is located at the top of the reactor (1); The feeding ring (6) has a feeding port (62) and a discharging port (61) communicating with the inner cavity of the reaction kettle (1); the outlet of the feeding control valve (4) is connected to the feeding port (62); and the feeding port (62) and the discharging port (61) are evenly arranged along the circumference of the feeding ring (6).

3. The feeding device according to claim 2, characterized in that: The feeding ring (6) comprises at least two branch shaft sections (601), and a plurality of adjacent branch shaft sections (601) are plugged together to form an annular tube body, and the plurality of branch shaft sections (601) can all pass through the manhole (11) of the reaction kettle (1).

4. The feeding device according to claim 3, characterized in that: The cross-sectional width of the discharge port (61) on the side close to the feed port (62) is smaller than the cross-sectional widths of a plurality of discharge ports (61) on the side away from the feed port (62).

5. The feeding device according to claim 4, characterized in that: The discharge port (61) includes 6 first discharge ports (611), 6 second discharge ports (612) and 7 third discharge ports (613); The diameter of the second discharge port (612) is 1 / 19 of the diameter of the feed port (62), the diameter of the first discharge port (611) is 0.9 times the diameter of the second discharge port (612), and the diameter of the third discharge port (613) is 1.1 times the diameter of the second discharge port (612); The first discharge port (611), the second discharge port (612) and the third discharge port (613) are symmetrically and evenly distributed, and the axis of symmetry is a radial line of the loading ring (6) passing through the center of the feeding port (62).

6. The feeding device according to claim 5, characterized in that One of the feeding rings (6) comprises three of the branch shaft segments (601), and the feeding port (62) is located at the center position of one of the branch shaft segments (601) along its arc length direction.

7. The feeding device according to claim 2, characterized in that: The discharge port (61) is located at one side of the bottom end of the loading ring (6), and the bottom end of the discharge port (61) is inclined toward a side close to the axis of the reaction kettle (1); The feed port (62) is provided with a feed pipe (7), and the feed pipe (7) passes through the side wall of the reaction kettle (1) and extends to the outside of the reaction kettle (1).

8. The feeding device according to claim 7, characterized in that: The top of the material storage box (2) is conductively connected to a delivery pump (8) for delivering materials into the material storage box (2), and the delivery pump (8) is signal-connected to the controller (5).

9. The feeding device according to claim 8, characterized in that: The storage box (2) has an overflow port at a middle height position on the peripheral surface, and the distance from the overflow port to the top of the storage box (2) is smaller than the distance to the bottom of the storage box (2); And / or, the weighing component (3), the feed control valve (4), and the controller (5) are arranged on a base, and the reaction kettle (1) can be arranged on the base.

10. A reaction device, comprising a reaction kettle (1), characterized in that: It also includes the feeding device according to any one of claims 1 to 9.

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