An apparatus for cleaning granular silicon tank heel

Abstract

The utility model provides a kind of equipment for cleaning granular silicon tank bottom surplus material, for discharging the tank body (501) bottom surplus material (504) of the granular silicon tank, including cleaning device on valve (502) installed in the tank body (501) bottom;The cleaning device includes dust removal bottom pipe (103) with one end upwardly into the tank body (501) bottom, the other end downwardly extends the tank body (501) bottom, and the dust removal bottom pipe (103) middle part is connected with valve (502) bottom by the flange (301) and soft connecting portion (302) of valve (502) bottom installation.

Description

Technical Field

[0001] This utility model relates to a device for cleaning the bottom of a tank, and more particularly to a device for cleaning residual material at the bottom of a granular silicon tank. Background Technology

[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.

[0003] To prevent metal contamination caused by wear on the tank walls during use, insert tubes are added to the bottom of the granular silicon product tanks, small particle tanks, and seed crystal tanks (hereinafter referred to as granular silicon tanks). After adding the insert tubes, metal impurities will accumulate at the repose angle at the bottom of the tank. Fluidized bed fluctuations during production operation will also cause contamination of the product tank. At this time, it is necessary to discharge the material in the repose angle. The current method is to remove the bottom valve of the tank for material discharge. During the operation, the process of disassembling, inspecting and cleaning the residual material at the bottom of the tank requires a lot of manpower (in production practice, it takes about 3 people 0.5 days for 1 tank). In addition, some gaskets need to be replaced, and nitrogen pressure is required after the valve is reinstalled, resulting in waste of personnel, gaskets and nitrogen.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] Purpose of the invention: The technical problem to be solved by this utility model is to provide a device for cleaning the residual material at the bottom of granular silicon cans, addressing the shortcomings of the existing technology.

[0006] To solve the above-mentioned technical problems, this utility model discloses a device for cleaning residual material at the bottom of a granular silicon can, used to discharge residual material from the bottom of the granular silicon can, comprising:

[0007] A cleaning device installed on the valve at the bottom of the tank;

[0008] The cleaning device includes a dust removal bottom pipe with one end extending upward into the bottom of the tank and the other end extending downward into the bottom of the tank. The middle part of the dust removal bottom pipe is connected to the bottom of the valve through a flange and a flexible connection installed at the bottom of the valve.

[0009] Furthermore, a flexible connection is fitted at the lower end of the flange, the middle part of the dust removal bottom pipe passes through the flange, and the other end of the flexible connection is fitted on the outer wall of the middle part of the dust removal bottom pipe.

[0010] Furthermore, a recess is provided on the outer wall of the middle part of the dust removal bottom pipe, and the other end of the flexible connector is sleeved in the recess.

[0011] Furthermore, the top of the dust removal bottom pipe is fluidly connected to the residual material inlet via a hose, and the residual material inlet is used to suck up the residual material at the bottom of the tank.

[0012] Furthermore, a control rope top fixing point is fixedly provided on the top outer wall of the residual material inlet, and a control rope threading tube is fixedly provided on the outer outer wall of the dust removal bottom pipe. One end of the control rope threading tube is located inside the tank body, and the other end is located outside the tank body. The control rope top fixing point is connected to one end of the control rope, and the other end of the control rope passes through the control rope threading tube to control the angle between the residual material inlet and the dust removal bottom pipe.

[0013] Furthermore, an endoscope lens is fixed on the outer wall of the waste material inlet. The endoscope lens is electrically connected to one end of a flexible wire. The flexible wire is fixed by a flexible wire fixing bracket set on the outer wall of the waste material inlet. The other end extends downward to the outside of the tank and is electrically connected to the display.

[0014] Furthermore, the waste material inlet and the top of the dust removal bottom pipe connected to both ends of the hose are both rigid tubular structures.

[0015] Furthermore, the top of the tank is equipped with a nitrogen filling device to fill the tank with nitrogen gas.

[0016] Furthermore, the nitrogen filling device includes:

[0017] A pressurized nitrogen inlet is connected to the fluid inside the tank via a pressurized nitrogen regulating valve. A pressurized nitrogen pressure gauge is also provided on the fluid passage between the pressurized nitrogen inlet and the tank to detect the pressure in the fluid passage.

[0018] Furthermore, the dust removal bottom pipe extends out of the tank and is fluidly connected to the vacuum cleaner via a suction hose.

[0019] Beneficial effects:

[0020] This invention reduces the amount of manual labor required when disassembling and cleaning the bottom of product tanks, seed crystal tanks, and small particle tanks, and eliminates the waste of gaskets and nitrogen. Attached Figure Description

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, and the advantages of the present invention in the above and / or other aspects will become clearer.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the main structure of this utility model.

[0024] Figure 3 This is an enlarged schematic diagram of the flexible connection structure.

[0025] In the diagram, 101 is the residual material inlet; 102 is the flexible hose; 103 is the dust removal bottom pipe; 104 is the bottom discharge port of the dust removal equipment; 201 is the endoscope lens; 202 is the flexible cable fixing bracket; 203 is the flexible cable; 204 is the display; 301 is the flange; 302 is the flexible connection part; 303 is the recess; 401 is the control rope top fixing point; 402 is the control rope conduit; 403 is the control rope; 501 is the tank body; 502 is the tank body bottom valve; 503 is the inner insertion tube; 504 is the residual material inside the tank; 601 is the vacuum cleaner; 602 is the vacuum hose; 701 is the pressurized nitrogen inlet; 702 is the pressurized nitrogen regulating valve; 703 is the pressurized nitrogen pressure gauge. Detailed Implementation

[0026] The overall concept of this utility model is as follows:

[0027] 1. The entire component uses polyurethane casting, which avoids the introduction of contaminants;

[0028] 2. Use an endoscope to observe the remaining material at the bottom of the tank, thus shortening the cleaning time;

[0029] 3. The remaining material at the bottom of the tank can be cleaned without removing the bottom valve;

[0030] 4. No further pressure suppression is required.

[0031] The technical solution of this utility model is as follows: A device for cleaning residual material at the bottom of granular silicon tanks, such as... Figure 1 As shown, it specifically includes the following parts:

[0032] A granular silicon product tank, small particle tank, or seed crystal tank for storing materials, i.e., a granular silicon tank, includes: a tank body 501, with a tank bottom valve 502 fixed at the bottom for discharging residual material 504 from the tank body.

[0033] A cleaning device is fixed on the bottom valve 502 of the tank body. The cleaning device is connected to the bottom of the bottom valve 502 of the tank body through a flange 301 and a flexible connection 302. One end extends upward into the bottom of the tank body 501, and the other end is fluidly connected to the vacuum cleaner 601 through a vacuum hose 602.

[0034] The top of tank 501 is also equipped with a nitrogen filling device to fill the tank 501 with nitrogen gas.

[0035] The nitrogen filling device includes: a nitrogen inlet 701 that is fluidly connected to the inside of the tank 501 via a nitrogen filling regulating valve 702; a nitrogen pressure gauge 703 is also provided on the nitrogen passage between the nitrogen inlet 701 and the tank 501 to detect the pressure of the nitrogen being filled.

[0036] like Figure 2 As shown, the cleaning device includes:

[0037] A flange 301 is installed at the bottom of the tank bottom valve 502. The lower end of the flange 301 is sleeved on the outer wall of the dust collector bottom pipe 103 via a flexible connector 302. The top end of the dust collector bottom pipe 103 extends into the tank 501 and is fluidly connected to one end of a flexible hose 102. The other end of the hose 102 is fixed with a waste material inlet 101. Both the waste material inlets 101 at both ends of the hose 102 and the dust collector bottom pipe 103 are rigid tubular structures.

[0038] The top outer wall of the residual material inlet 101 is fixed with a control rope top fixing point 401, and the outer wall of the dust removal bottom pipe 103 is fixed with a control rope threading pipe 402. One end of the control rope threading pipe 402 is located inside the tank body 501, and the other end is located outside the tank body 501. One end of the control rope 403 is fixedly connected to the control rope top fixing point 401, and the other end passes through the control rope threading pipe 402 and then exits from the other end. In use, pulling the control rope 403 will cause the side of the residual material inlet 301 to be subjected to force and bend downward through the hose 102. The top of the residual material inlet 301 is close to the bottom of the inner cavity of the tank body 501. Combined with the rotation of the dust removal bottom pipe 103, it is convenient to pick up residual material from different positions at the bottom of the tank body 501.

[0039] An endoscope lens 201 is fixedly mounted on the top outer wall of the waste material inlet 101, and the orientation of the endoscope lens 201 is consistent with the opening direction of the waste material inlet 101. The endoscope lens 201 is electrically connected to one end of a flexible cable 203, which is fixed by a flexible cable fixing bracket 202 set on the outer wall of the waste material inlet 101. The other end extends downward to the outside of the tank 501 and is electrically connected to the display 204. In use, the endoscope is opened, and the situation in the opening direction of the waste material inlet 101 can be observed through the display 204, and the control rope 403 can be operated accordingly.

[0040] like Figure 3 As shown, the flexible connector 302 is fitted onto the bottom of the flange 301 and the outer wall of the dust collector pipe 103 at both ends. A recess 303 is provided on the outer wall of the dust collector pipe 103, and one end of the flexible connector 302 is fitted onto the recess 303 to ensure sealing performance.

[0041] In use, the bottom valve 502 of the product tank, seed crystal tank, or small particle tank 501 is opened. The dust removal equipment flange 301 is installed at the bottom of the valve 502. The bottom discharge port 104 of the dust removal equipment is connected to the vacuum cleaner 601 through the pipe 602. The tank is pressurized using the nitrogen inlet 701. The pressure 703 is controlled by the control regulating valve 702 to ensure a slightly positive pressure of 0.05-1 kPa inside the tank. The operator opens the endoscope 204 and pulls the control rope 403 to deform the hose 102 so that the residual material inlet 101 faces the bottom of the tank. The dust collector suction switch is turned on, and the residual material inlet 101 is rotated by rotating the bottom dust removal pipe 103. The residual material at the bottom of the tank is cleaned through the observation of the endoscope lens 201.

[0042] This utility model provides a concept and method for cleaning residual material at the bottom of granular silicon containers. Many methods and approaches exist for implementing this technical solution; the above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. A device for cleaning residual material at the bottom of a granular silicon can, for discharging residual material (504) from the bottom of the can body (501) of the granular silicon can, characterized in that, include: A cleaning device installed on the valve (502) at the bottom of the tank (501); The cleaning device includes a dust removal bottom pipe (103) with one end extending upward into the bottom of the tank (501) and the other end extending downward into the bottom of the tank (501). The middle part of the dust removal bottom pipe (103) is connected to the bottom of the valve (502) through a flange (301) and a flexible connection (302) installed at the bottom of the valve (502).

2. The equipment for cleaning residual material at the bottom of granular silicon cans according to claim 1, characterized in that, The flange (301) is fitted with a flexible connector (302) at its lower end. The dust removal bottom pipe (103) passes through the flange (301) in the middle, and the other end of the flexible connector (302) is fitted on the outer wall of the middle part of the dust removal bottom pipe (103).

3. The equipment for cleaning residual material at the bottom of granular silicon tanks according to claim 2, characterized in that, The dust removal bottom pipe (103) has a recess (303) on the outer wall of the middle part, and the other end of the flexible connection part (302) is sleeved in the recess (303).

4. The equipment for cleaning residual material at the bottom of granular silicon tanks according to claim 1, characterized in that, The top of the dust removal bottom pipe (103) is fluidly connected to the residual material inlet (101) via a hose (102), and the residual material inlet (101) is used to suck up the residual material (504) at the bottom of the tank (501).

5. The equipment for cleaning residual material at the bottom of granular silicon tanks according to claim 4, characterized in that, A control rope top fixing point (401) is fixedly provided on the top outer wall of the residual material inlet (101), and a control rope threading tube (402) is fixedly provided on the outer wall of the dust removal bottom pipe (103). One end of the control rope threading tube (402) is located inside the tank body (501), and the other end is located outside the tank body (501). The control rope top fixing point (401) is connected to one end of the control rope (403), and the other end of the control rope (403) passes through the control rope threading tube (402) to control the angle between the residual material inlet (101) and the dust removal bottom pipe (103).

6. The equipment for cleaning residual material at the bottom of granular silicon tanks according to claim 5, characterized in that, An endoscope lens (201) is fixed on the outer wall of the waste material inlet (101). The endoscope lens (201) is electrically connected to one end of a flexible wire (203). The flexible wire (203) is fixed by a flexible wire fixing bracket (202) set on the outer wall of the waste material inlet (101). The other end extends downward to the outside of the tank body (501) and is electrically connected to the display (204).

7. The equipment for cleaning residual material at the bottom of granular silicon tanks according to claim 4, characterized in that, The top of the waste material inlet (101) and the dust removal bottom pipe (103) connected to both ends of the hose (102) are both rigid tubular structures.

8. The equipment for cleaning residual material at the bottom of granular silicon cans according to claim 1, characterized in that, The top of the tank (501) is equipped with a nitrogen filling device to fill the tank (501) with nitrogen gas.

9. The equipment for cleaning residual material at the bottom of granular silicon cans according to claim 8, characterized in that, The nitrogen filling device includes: A nitrogen inlet (701) is fluidly connected to the inside of the tank (501) via a nitrogen regulating valve (702). A nitrogen pressure gauge (703) is also provided on the fluid passage between the nitrogen inlet (701) and the tank (501) to detect the pressure in the fluid passage.

10. The equipment for cleaning residual material at the bottom of granular silicon tanks according to claim 1, characterized in that, The dust removal bottom pipe (103) extends out of the tank (501) and is fluidly connected to the vacuum cleaner (601) through the vacuum hose (602).

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