Granular silicon dust removal discharging hopper

Abstract

The utility model discloses a granular silicon dust removal blanking hopper which comprises an upper shell and a bottom blanking hopper, a flange interface for receiving a granular silicon material is arranged above the upper shell, and the lower part of the upper shell is sleeved on the bottom blanking hopper; and the bottom of the bottom blanking hopper is closed up to form a blanking port. The use consumption of the hopper and the cost of spare parts are reduced by utilizing an assembly structure; the silicon powder in the product is further removed under the action of nitrogen and vacuum; a polyurethane material is adopted to replace a metal material, so that the pollution of a metal framework to the product quality after the blanking hopper is worn through is avoided, and the service life of the blanking hopper is prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of granular silicon production, and specifically relates to a granular silicon dust removal hopper. Background Art

[0002] Post-processing is an important step before granular silicon products are packaged and sold. Granular silicon is packaged and sold after the screening and dust removal process. During the packaging process, the lower hopper with a metal frame is easily worn out, resulting in metal exposure, which in turn pollutes the product quality. It needs to be replaced through regular inspections and repairs and product abnormalities, which is relatively passive and not conducive to product quality control.

[0003] During the packaging process of silane fluidized bed production of granular silicon, the continuous impact of granular silicon can easily cause the metal frame of the hopper to wear out, which in turn leads to product quality pollution. In order to reduce the pollution to product quality, the transformation is carried out. Summary of the invention

[0004] Purpose of the utility model: The technical problem to be solved by the utility model is to provide a granular silicon dust removal hopper in view of the deficiencies in the prior art, so as to reduce the pollution of the hopper wear to the product quality.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A granular silicon dust removal hopper comprises an upper shell and a bottom hopper; the upper portion of the upper shell is provided with a flange interface for receiving granular silicon materials, and the lower portion is sleeved on the bottom hopper; the bottom hopper is open at the top and closed at the bottom to form a discharge port.

[0007] Furthermore, an annular caulking belt is provided between the upper shell and the bottom lower hopper, and the caulking belt is clamped in the gap between the upper shell and the bottom lower hopper.

[0008] Preferably, the longitudinal section of the caulking tape is a right triangle.

[0009] Furthermore, a group of bolt holes are arranged on the top of the flange interface, and the flange interface is connected to the feed pipe above through a group of bolts to feed the material into the upper shell.

[0010] Furthermore, the bottom of the flange interface penetrates into the interior of the upper shell.

[0011] Furthermore, the bottom of the flange interface is configured as an oblique cut.

[0012] Furthermore, a nitrogen inlet is arranged on the side of the upper shell, and a vacuum exhaust port is arranged on the top.

[0013] Preferably, the nitrogen inlet and the vacuum exhaust port are respectively disposed on two opposite sides of the upper shell.

[0014] Furthermore, the bottom discharge hopper is connected to the discharge pipe below through the discharge port at the bottom.

[0015] Furthermore, the upper shell and the bottom hopper are both made of polyurethane material. Beneficial Effects

[0016] The utility model discloses a granular silicon dust removal hopper which utilizes an assembly structure to reduce the use consumption of the hopper and the cost of spare parts; utilizes the effects of nitrogen and vacuum to further remove silicon powder in the product; uses polyurethane material instead of metal material to prevent the metal skeleton from contaminating the product quality after the hopper is worn out, thereby increasing the service life of the hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods, and the above and / or other advantages of the present invention will become more clear.

[0018] Figure 1 It is a schematic diagram of the overall structure of the granular silicon dust removal lower hopper.

[0019] Figure 2 It is a longitudinal section view of the upper shell.

[0020] Figure 3 It is a schematic diagram of the top structure of the upper shell.

[0021] Figure 4 It is a longitudinal section view of the bottom hopper.

[0022] Figure 5 It is a top view of the structure of the bottom hopper.

[0023] Figure 6 It is a longitudinal section view of the caulking tape.

[0024] Figure 7 is a front view of the caulking tape.

[0025] Wherein, each reference numeral represents:

[0026] 10-upper shell; 101-flange interface; 102-bolt hole; 103-oblique cut; 104-nitrogen inlet; 105-vacuum exhaust port; 20-bottom hopper; 201-discharging port; 30-caulking tape; 40-discharging pipe. DETAILED DESCRIPTION

[0027] The present invention can be better understood according to the following embodiments.

[0028] The structures, proportions, sizes, etc. illustrated in the drawings of the specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "front", "back", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0029] Combination Figure 1 The utility model of the granular silicon dust removal hopper comprises an upper shell 10 and a bottom hopper 20; the upper shell 10 is provided with a flange interface 101 for receiving granular silicon materials, and the lower part is sleeved on the bottom hopper 20; the bottom hopper 20 is open at the top and closed at the bottom to form a material discharge port 201. By using the assembly structure, the cost of spare parts can be reduced.

[0030] Among them, combined Figure 2 and Figure 3 As shown, a group of bolt holes 102 are arranged on the top of the flange interface 101 , and the flange interface 101 is connected to the feed pipe above through a group of bolts to feed materials into the upper shell 10 .

[0031] In some embodiments, the bottom of the flange interface 101 penetrates into the interior of the upper shell 10 .

[0032] In some embodiments, the bottom of the flange interface 101 is configured as an oblique cutout 103 .

[0033] In some embodiments, a nitrogen inlet 104 is disposed on the side of the upper shell 10 , and a vacuum exhaust port 105 is disposed on the top.

[0034] In some embodiments, the nitrogen inlet 104 and the vacuum exhaust port 105 are respectively disposed on two opposite sides of the upper housing 10 .

[0035] Combination Figure 4 and Figure 5 As shown, in the present invention, the bottom discharge hopper 20 is connected to the discharge pipe 40 below through the discharge port 201 at the bottom.

[0036] In some embodiments, the upper shell 10 and the bottom hopper 20 are both made of polyurethane material. By changing the existing metal structure of the hopper and using all polyurethane material, metal pollution is eliminated. At the same time, the elasticity of polyurethane is used to increase the service life of the hopper.

[0037] Combination Figure 6 and Figure 7 As shown, in some embodiments, an annular caulking belt 30 is further provided between the upper shell 10 and the bottom lower hopper 20 , and the caulking belt 30 is clamped in the gap between the upper shell 10 and the bottom lower hopper 20 .

[0038] In some embodiments, the longitudinal section of the caulking tape 30 is a right triangle.

[0039] When in use, the granular silicon material is fed into the granular silicon dust removal hopper through the feed pipe, and nitrogen is introduced through the nitrogen inlet 104. The pressure in the hopper is regulated by the vacuum exhaust port 105 to make the system run smoothly. The material will not be discharged from the material discharge port 201 and the vacuum port will not carry material. The silicon powder in the product is extracted by nitrogen purge and vacuum dust removal, and brought into the dust removal filter to achieve the dust removal effect.

[0040] The utility model provides a thought and method for dust removal of granular silicon. There are many methods and ways to implement the technical solution. The above is only the preferred implementation of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model. These improvements and modifications should also be regarded as the protection scope of the utility model. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A granular silicon dust removal hopper, characterized in that: The device comprises an upper shell (10) and a bottom hopper (20); the upper portion of the upper shell (10) is provided with a flange interface (101) for receiving granular silicon materials, and the lower portion is sleeved on the bottom hopper (20); the bottom hopper (20) is open at the top and closed at the bottom to form a material discharge port (201); An annular caulking belt (30) is also provided between the upper shell (10) and the bottom lower hopper (20), and the caulking belt (30) is clamped in the gap between the upper shell (10) and the bottom lower hopper (20); The upper shell (10) and the bottom hopper (20) are both made of polyurethane material.

2. The granular silicon dust removal lower hopper according to claim 1, characterized in that: The longitudinal section of the caulking tape (30) is a right triangle.

3. The granular silicon dust removal lower hopper according to claim 1, characterized in that: A group of bolt holes (102) are arranged at the top of the flange interface (101), and the flange interface (101) is connected to the upper feed pipe via a group of bolts to feed the material into the upper shell (10).

4. The granular silicon dust removal lower hopper according to claim 3, characterized in that: The bottom of the flange interface (101) penetrates into the interior of the upper shell (10).

5. The granular silicon dust removal lower hopper according to claim 4, characterized in that: The bottom of the flange interface (101) is provided with an oblique cutout (103).

6. The granular silicon dust removal lower hopper according to claim 1, characterized in that: A nitrogen inlet (104) is provided on the side of the upper shell (10), and a vacuum exhaust port (105) is provided on the top.

7. The granular silicon dust removal lower hopper according to claim 6, characterized in that: The nitrogen inlet (104) and the vacuum exhaust port (105) are respectively arranged on two opposite sides of the upper shell (10).

8. The granular silicon dust removal lower hopper according to claim 1, characterized in that: The bottom discharge hopper (20) is connected to the discharge pipe (40) below via a discharge port (201) at the bottom.

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