Feeding bin and molten salt electrolytic refining equipment

Abstract

The utility model relates to a feeding bin and molten salt electrolytic refining equipment. The feeding bin comprises a bin body, a motor, a stirring shaft and a heating assembly. The stock bin is provided with an air inlet, a vacuumizing opening, a feeding opening and a discharging opening, the motor is fixedly arranged outside the stock bin and can drive the stirring shaft to rotate, and the stirring shaft penetrates through the stock bin to the interior of the stock bin; a heating assembly is fixed on the outer wall of the stock bin; by fixing the heating assembly on the outer wall of the stock bin, molten salt powder in the stock bin can be heated, meanwhile, the motor is matched to drive the stirring shaft to rotate, and the molten salt powder in the stock bin is stir-fried and heated, so that water and oxygen in the molten salt powder can be better dissipated, and the service life of the molten salt powder is prolonged. On one hand, the molten salt powder can be prevented from adhering to the inner wall of the stock bin to cause blanking blockage, and on the other hand, water and oxygen in the powder can be more sufficiently removed, so that the purification degree of the molten salt powder is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to electrolytic refining molten salt equipment, in particular to a feed bin and electrolytic molten salt equipment. Background Art

[0002] Molten salt has good ionic conductivity and chemical stability and can be used as an excellent medium for chemical reactions. However, since most molten salts usually exist in powder form under normal conditions and contain water and oxygen, the molten salt powder needs to be dehydrated and deoxygenated before participating in the reaction as a medium for chemical reactions.

[0003] At present, water and oxygen in the molten salt powder are mostly removed by repeatedly vacuuming and filling with argon in the silo to ensure that the molten salt powder entering the reactor through the silo is fully purified;

[0004] However, since the molten salt powder contains water and oxygen, the powder may adhere to the inner wall of the silo, causing the silo to be blocked, and the powder cannot be transported to the reactor through the discharge port after purification. Utility Model Content

[0005] Based on this, it is necessary to provide a feed silo and electrolytic refining molten salt equipment that is not prone to clogging in order to address the problem that the inner wall of the silo is easily adhered to by molten salt powder, causing the silo to become clogged.

[0006] The present application first provides a feeding silo, including a silo, a motor, a stirring shaft and a heating component; the silo has an air inlet, a vacuum port, a feed port and a discharge port, the motor is fixedly mounted outside the silo and can drive the stirring shaft to rotate, the stirring shaft passes through the silo to the inside of the silo; a heating component is fixed to the outer wall of the silo.

[0007] In one embodiment, the silo is in an inverted cone shape, the air inlet, the vacuum port and the feed port are all located at the top of the silo, and the discharge port is located at the bottom of the silo.

[0008] In one of the embodiments, the silo includes a silo body and a silo cover detachably fixed to the top of the silo body, the motor is fixed to the silo cover, and the stirring shaft passes through the silo cover and is arranged along the central axis of the silo.

[0009] In one of the embodiments, a seal is provided between the stirring shaft and the silo cover.

[0010] In one embodiment, the sealing member is a JO-type sealing ring.

[0011] In one embodiment, a spiral stirring blade is fixed on the stirring shaft.

[0012] In one of the embodiments, the discharge port of the silo is provided with a pneumatic butterfly valve.

[0013] In one of the embodiments, the bottom of the pneumatic butterfly valve is fixed to a related fan.

[0014] In one of the embodiments, the inner wall of the silo has a polishing layer.

[0015] A second aspect of the present application provides an electrolytic refining molten salt equipment, comprising the above-mentioned feed silo.

[0016] The above-mentioned feeding silo can heat the molten salt powder inside the silo by fixing the heating component on the outer wall of the silo, and at the same time cooperate with the motor to drive the stirring shaft to rotate, so as to stir-fry and heat the molten salt powder inside the silo, so that the water and oxygen inside the molten salt powder can be better dissipated. On the one hand, it can prevent the molten salt powder from sticking to the inner wall of the silo and causing blockage of the material falling, and on the other hand, it can more fully remove the water and oxygen in the powder to improve the purification degree of the molten salt powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a cross-sectional view of the feed silo in the front view direction of this application;

[0018] Figure 2 for Figure 1 Top view of the .

[0019] Figure numerals: 10, silo; 10a, silo body; 10b, silo cover; 11, air inlet; 12, vacuum port; 13, feed port; 14, discharge port; 20, motor; 30, stirring shaft; 31, sealing element; 32, stirring blade; 40, heating component; 50, pneumatic butterfly valve; 60, fan off. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0026] Please combine Figure 1 as well as Figure 2 As shown, the feeding silo of the present application includes a silo 10, a motor 20, a stirring shaft 30 and a heating component 40; the silo 10 has an air inlet 11, a vacuum port 12, a feed port 13 and a discharge port 14, the motor 20 is fixedly mounted outside the silo 10 and can drive the stirring shaft 30 to rotate, and the stirring shaft 30 passes through the silo 10 to the inside of the silo 10; the heating component 40 is fixed to the outer wall of the silo 10.

[0027] Specifically, the vacuum port 12 is used to connect with the vacuum assembly to vacuum the interior of the silo 10, the air inlet 11 is used to connect with the air inlet assembly to fill argon gas into the silo 10, the feed port 13 is used to feed molten salt powder, and the discharge port 14 is used to discharge molten salt powder. The air inlet 11, the vacuum port 12, the feed port 13 and the discharge port 14 can all be opened or closed as needed.

[0028] In the present application, by fixing the heating component 40 on the outer wall of the silo 10, the molten salt powder inside the silo 10 can be heated, and at the same time, the motor 20 drives the stirring shaft 30 to rotate, so that the molten salt powder inside the silo 10 is stir-fried and heated, so that the water and oxygen inside the molten salt powder can be better dissipated. On the one hand, it can prevent the molten salt powder from sticking to the inner wall of the silo 10 and causing blockage of the material falling, and on the other hand, it can more fully remove the water and oxygen in the powder to improve the purification degree of the molten salt powder.

[0029] Preferably, the heating assembly 40 wraps the outer wall of the silo 10 to obtain a comprehensive and uniform heating effect.

[0030] In some embodiments, the heating component 40 may be an electric heating wire or other commonly used heating components, as long as it can heat the silo 10, and the present application does not make any further limitations here.

[0031] More preferably, the heating temperature of the heating component 40 is 100°C to 200°C.

[0032] Please refer to Figure 1As shown, in some embodiments, the silo 10 is in an inverted cone shape, the air inlet 11 , the vacuum port 12 , and the feed port 13 are all located at the top of the silo 10 , and the discharge port 14 is located at the bottom of the silo 10 .

[0033] The conical silo 10 facilitates the dropping of molten salt powder and can reduce the possibility of the powder blocking the discharge port 14 .

[0034] In addition, since the molten salt powder in the silo 10 accumulates at the bottom of the silo 10 under the action of its own weight, the vacuum port 12 is set at the top of the silo 10, which can minimize the possibility of molten salt powder being sucked into the vacuum process and reduce the probability of molten salt powder clogging the vacuum components, thereby improving the vacuum efficiency of the equipment.

[0035] Please refer to Figure 1 As shown, in some embodiments, the silo 10 includes a silo body 10a and a silo cover 10b detachably fixed to the top of the silo body 10a, the motor 20 is fixed to the silo cover 10b, and the stirring shaft 30 passes through the silo cover 10b and is arranged along the central axis of the silo 10.

[0036] Specifically, the stirring shaft 30 extends from the feed port 13 to the discharge port 14. The stirring and frying of the stirring shaft 30 can increase the degree of dispersion of water and oxygen in the molten salt powder on the one hand, and prevent the molten salt powder from being compacted at the discharge port 14 and causing blockage on the other hand.

[0037] Please refer to Figure 1 As shown, in some embodiments, a seal 31 is provided between the stirring shaft 30 and the silo cover 10 b ; the seal 31 can play a dynamic sealing effect to prevent the molten salt powder in the silo 10 from leaking.

[0038] In some embodiments, the seal 31 is a JO-type sealing ring.

[0039] Please refer to Figure 1 As shown, in some embodiments, a spiral stirring blade 32 is fixed to the stirring shaft 30 ; the stirring shaft 30 is driven to rotate by the motor 20 , and the spiral stirring blade 32 can continuously and fully stir the molten salt powder inside the silo 10 .

[0040] Preferably, the motor 20 is a speed-regulating motor, which can adjust the speed range according to demand. The speed range of the motor 20 is less than 50 rpm and can be adjusted according to actual stirring needs.

[0041] Specifically, the outer contour of the stirring blade 32 is similar to the shape of the silo 10 and is also in the shape of an inverted cone, so as to increase the contact area between the stirring blade 32 and the molten salt powder and reduce the possibility of blockage caused by the existence of a stirring dead corner in the silo 10.

[0042] Please refer to Figure 1As shown, in some embodiments, the discharge port 14 of the silo 10 is provided with a pneumatic butterfly valve 50; the pneumatic butterfly valve 50 has low fluid resistance, is easy to operate, can achieve rapid closing and full opening start-up, and can be well used for processing powder media.

[0043] Of course, in some other embodiments, other valve bodies may also be used to control the opening and closing of the discharge port 14, and this application does not give examples one by one here.

[0044] Please refer to Figure 1 As shown, in some embodiments, the bottom of the pneumatic butterfly valve 50 is fixed to the fan 60 .

[0045] The fan 60 can discharge materials quantitatively and continuously by adjusting the rotation speed, and has the advantages of reliable and stable operation, low noise, low failure rate and long service life.

[0046] Preferably, the speed range of the fan 60 is less than 50 rpm, and can be adjusted according to actual unloading requirements.

[0047] In some embodiments, the inner wall of the silo 10 has a polishing layer; the polishing layer on the inner wall of the silo 10 is conducive to the falling of the molten salt powder, and can further reduce the possibility of the molten salt powder adhering to the inner wall of the silo 10 and causing blockage.

[0048] Specifically, the polishing layer can be obtained by polishing the inner wall of the silo 10 .

[0049] The specific process steps of the feeding silo of the present application are as follows: the molten salt powder is loaded into the silo 10 from the feed port 13, the silo cover 10b seals the silo body 10a through the sealing ring, and the heating component 40 is heated to 100°C-200°C (adjusted according to the material characteristics); then the motor 20 is started to drive the stirring shaft 30 to rotate, and the molten salt powder is stirred to stir and heat it so that the water and oxygen can be better released; then argon is filled into the air inlet 11, and after it is full, the vacuum pump is started to evacuate the air to about 0.1Pa, and then the argon filling → evacuation is repeated twice to basically remove water and oxygen; then the pneumatic butterfly valve 50 is opened, the fan 60 is turned off and the speed is adjusted to a suitable speed, and the powder falls (powder raw material flow rate).

[0050] A second aspect of the present application provides an electrolytic refining molten salt equipment, comprising the above-mentioned feed silo.

[0051] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A feed silo, characterized in that: It comprises a silo (10), a motor (20), a stirring shaft (30) and a heating component (40); The silo (10) has an air inlet (11), a vacuum port (12), a feed port (13) and a discharge port (14); the motor (20) is fixedly arranged outside the silo (10) and is capable of driving the stirring shaft (30) to rotate; the stirring shaft (30) passes through the silo (10) to the inside of the silo (10); A heating component (40) is fixed to the outer wall of the silo (10).

2. The feed silo according to claim 1, characterized in that: The silo (10) is in the shape of an inverted cone, the air inlet (11), the vacuum port (12) and the feed port (13) are all located at the top of the silo (10), and the discharge port (14) is located at the bottom of the silo (10).

3. The feed silo according to claim 1, characterized in that: The silo (10) comprises a silo body (10a) and a silo cover (10b) detachably fixed to the top of the silo body (10a); the motor (20) is fixed to the silo cover (10b); and the stirring shaft (30) passes through the silo cover (10b) and is arranged along the central axis of the silo (10).

4. The feed silo according to claim 3, characterized in that: A sealing member (31) is provided between the stirring shaft (30) and the silo cover (10b).

5. The feed silo according to claim 4, characterized in that: The sealing element (31) is a JO-type sealing ring.

6. The feed silo according to claim 3, characterized in that: A spiral stirring blade (32) is fixed on the stirring shaft (30).

7. The feed silo according to claim 2, characterized in that: The material outlet (14) of the material bin (10) is provided with a pneumatic butterfly valve (50).

8. The feed silo according to claim 7, characterized in that: A related fan (60) is fixed at the bottom of the pneumatic butterfly valve (50).

9. The feed silo according to claim 1, characterized in that: The inner wall of the silo (10) has a polishing layer.

10. An electrolytic refining molten salt device, characterized in that: It comprises a feed silo as described in any one of claims 1 to 9.

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