Leakage-proof device for blanking pipe of fluoride salt charging vehicle

Abstract

The utility model discloses a fluoride salt charging vehicle blanking pipe material leakage prevention device which comprises a flange plate connected with a charging arm, the bottom of the flange plate is fixedly connected with a stainless steel corrugated pipe and a blanking pipe vertically downwards in sequence, the outer side of the stainless steel corrugated pipe is sleeved with a dustproof cloth bag, and the outer side of the middle of the blanking pipe is sleeved with an annular supporting plate. A sleeve is fixed to the upper surface of the middle of the annular supporting plate, the outer surface of the sleeve is sleeved with the bottom of a dustproof cloth bag, and the bottom of the dustproof cloth bag is clamped between the sleeve and a gasket and fixed through a clamping bolt; the flange plate is fixedly connected with the edge of the upper surface of the annular supporting plate through a steel wire rope, and automatic intercepting plates with the same number as the strip-shaped through grooves are elastically and rotationally arranged on the lower surface of the annular supporting plate. Through the automatic intercepting plate which is elastically and rotatably arranged, the strip-shaped through groove in the discharging pipe is automatically closed or opened by the plastic blocking plate by utilizing the contact relative state of the top plane of the feeding hole of the electrolytic tank and the lower surface of the metal strip, and the waste of fluoride salt materials is avoided.

Description

Technical field:

[0001] The utility model relates to the technical field of aluminum electrolysis supporting equipment, in particular to a leakage prevention device for a feeding pipe of a fluoride salt feeding vehicle. Background technology:

[0002] Fluoride salt is an indispensable raw material in the production process of electrolytic aluminum. It plays an important role in controlling the electrolyte temperature and maintaining the technical stability of the electrolytic cell. Fluoride salt is usually added using a fluoride salt feeding truck.

[0003] The current defects are: the discharge pipe of the JW-33D fluoride salt feeding car is "funnel-shaped", and the side surface is also provided with a bar-shaped groove to increase the discharge efficiency. After the fluoride salt is discharged, although the fluoride salt feeding car program stops the feeding action, a small amount of fluoride salt will still be scattered through the bar-shaped groove around the outside of the electrolytic cell feed port, resulting in material waste. Utility model content:

[0004] The utility model aims to provide a leakage prevention device for a feeding pipe of a fluoride salt feeding vehicle, so as to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is implemented by the following technical solutions:

[0006] A device for preventing leakage of a feeding pipe of a fluoride salt feeding vehicle comprises a flange connected to a feeding arm, a stainless steel bellows and a feeding pipe are fixedly connected vertically downward in sequence at the bottom of the flange, a dust bag is sleeved on the outer side of the stainless steel bellows, the top of the dust bag is sleeved on the bottom of the flange and fixed by a hoop, an annular support plate is sleeved on the outer side of the middle of the feeding pipe, a sleeve is fixed on the upper surface of the middle of the annular support plate, a plurality of threaded through holes are evenly opened on the outer surface of the sleeve, the bottom of the dust bag is sleeved on the outer surface of the sleeve, a plurality of gaskets are arranged on the outer side of the sleeve, and the The bottom of the dust bag is clamped between the sleeve and the gasket and fixed by a clamping bolt, and one end of the clamping bolt passes through the sleeve and the outer surface of the discharge pipe to abut against the outer surface; the flange and the upper surface edge of the annular support plate are fixedly connected by a steel wire rope, and the lower surface of the annular support plate is elastically rotatably provided with automatic interception plates with the same number as the bar through grooves, and the automatic interception plates include: a metal bar and a plastic baffle fixed at one end of the metal bar, the plastic baffle is movably fitted with the conical surface on the discharge pipe and closes the outlet of the bar through groove at the same time, and a level meter is fixedly provided above the bar through groove in the discharge pipe.

[0007] Preferably, the feed tube is in a "funnel shape", and two strip-shaped through grooves are evenly arranged on its conical surface.

[0008] Preferably, the gasket has an arc-shaped structure.

[0009] Preferably, the upper surface of the metal strip is movably in contact with the lower surface of the annular support plate, and the other end of the metal strip extends out of the outer side of the annular support plate.

[0010] The utility model has the advantages of: through the elastically rotatable automatic interception plate, the contact relative state between the top plane of the electrolytic cell feed port and the lower surface of the metal strip is utilized to realize the automatic closing or opening of the strip groove on the feed pipe by the plastic interception plate, thus preventing fluoride salt from being scattered from the strip groove to the outer side of the electrolytic cell feed port and causing no material waste. Description of the drawings:

[0011] Figure 1 This is a cross-sectional view of the main structure of the utility model;

[0012] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0013] Figure 3 It is a structural schematic diagram of the automatic interception plate;

[0014] Figure 4 For use status reference Figure 1 ;

[0015] Figure 5 For use status reference Figure 2 .

[0016] In the figure: 1. flange, 2. stainless steel bellows, 3. feed pipe, 3.1. strip groove, 4. dust bag, 5. hoop, 6. annular support plate, 7. sleeve, 7.1. threaded through hole, 8. gasket, 9. clamping bolt, 10. wire rope, 11. automatic interception plate, 11.1. metal strip, 11.2. plastic baffle, 12. material level meter, 13. electrolytic cell feed port. Specific implementation method:

[0017] 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.

[0018] See also Figure 1-3 The utility model provides a technical solution for a leakage prevention device for a feeding pipe of a fluoride salt feeding vehicle:

[0019] A leakage prevention device for a feeding pipe of a fluoride salt feeding vehicle comprises a flange 1 connected to a feeding arm, a stainless steel bellows 2 and a feeding pipe 3 are fixedly connected vertically downward in sequence to the bottom of the flange 1; wherein the feeding pipe 3 is in a "funnel shape", and two strip-shaped through grooves 3.1 are evenly arranged on its conical surface, and a material level meter 12 is fixedly arranged above the strip-shaped through grooves 3.1 in the feeding pipe 3, so as to timely cut off the transmission of fluoride salt; a stainless steel bellows 2 is used for flexible connection, and since the stainless steel bellows 2 has a moderate telescopic steering function, the impact on the feeding arm during the alignment process can be effectively alleviated, so that the lower surface of the metal strip 11.1 can be in good contact with the plane at the top of the electrolytic cell feed port 13.

[0020] A dust-proof bag 4 is sleeved on the outer side of the stainless steel bellows 2. The top of the dust-proof bag 4 is sleeved on the bottom of the flange 1 and is clamped and fixed by a hoop 5. The dust-proof bag 4 has a good dust suppression effect during the unloading process. The fluoride salt material can be effectively prevented from flying during the unloading process. The dust is recovered by the dust-proof bag 4 and returned to the fluoride salt warehouse again, which reduces the waste of fluoride salt while alleviating environmental pollution, thereby reducing environmental pollution.

[0021] An annular support plate 6 is sleeved on the outer middle part of the discharge pipe 3, a sleeve 7 is fixed on the upper middle surface of the annular support plate 6, a plurality of threaded through holes 7.1 are evenly opened on the outer surface of the sleeve 7, the bottom of the dust bag 4 is sleeved on the outer surface of the sleeve 7, a plurality of arc-shaped gaskets 8 are arranged on the outer side of the sleeve 7, the bottom of the dust bag 4 is clamped between the sleeve 7 and the gasket 8 and fixed by a clamping bolt 9, and one end of the clamping bolt 9 passes through the sleeve 7 and abuts against the outer surface of the discharge pipe 3, so that the discharge pipe 3 can be located in the middle of the annular support plate 6; the flange 1 and the upper surface edge of the annular support plate 6 are fixedly connected by a steel wire rope 10, which can effectively limit the maximum stretching length of the stainless steel bellows 2 and define the bottom position and height of the discharge nozzle.

[0022] The lower surface of the annular support plate 6 is provided with automatic interception plates 11 having the same number as the strip-shaped through grooves 3.1 through rotation of a torsion spring. The connection method using rotation of a torsion spring is common knowledge and can be done and thought of by the staff in this field, so the detailed description of the structure is not given here.

[0023] The automatic interception plate 11 includes: a metal strip 11.1 and a plastic baffle 11.2 fixed to one end of the metal strip 11.1. The plastic baffle 11.2 movably adheres to the conical surface on the discharge pipe 3 and closes the outlet of the strip-shaped through groove 3.1. The upper surface of the metal strip 11.1 movably abuts against the lower surface of the annular support plate 6, and the other end of the metal strip 11.1 extends out of the outer side of the annular support plate 6.

[0024] See also Figure 4-5The working principle is as follows: during the fluoride salt feeding process, the feeding arm controls the movement of the feeding tube 3. When the feeding tube 3 enters the electrolytic cell feeding port 13, the top plane of the electrolytic cell feeding port 13 will contact the lower surface of the metal strip 11.1. As the feeding tube 3 continues to descend, the automatic interception plate 11 will rotate relatively, so that the plastic baffle 11.2 will no longer fit the conical surface on the feeding tube 3, and the strip-shaped through groove 3.1 will leak out, thereby accelerating the fluoride salt feeding process;

[0025] The material level meter 12 can timely cut off the fluoride salt transmission and complete the fluoride salt discharge. After the fluoride salt is discharged, the feeding arm causes the discharge pipe 3 to continuously rise, and the automatic interception plate 11 will again undergo relative reset rotation due to the action of the torsion spring, so that the plastic baffle 11.2 fits the conical surface on the discharge pipe 3, and finally closes the strip groove 3.1, preventing the fluoride salt from being scattered from the strip groove 3.1 to the outside of the electrolytic cell feed port 13, thereby preventing material waste.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A leakage prevention device for a feeding pipe of a fluoride salt feeding vehicle, comprising a flange (1) connected to a feeding arm, characterized in that: The bottom of the flange (1) is vertically downwardly fixedly connected with a stainless steel bellows (2) and a feed pipe (3). The outer side of the stainless steel bellows (2) is sleeved with a dust bag (4). The top of the dust bag (4) is sleeved on the bottom of the flange (1) and is clamped and fixed by a hoop (5). The middle outer side of the feed pipe (3) is sleeved with an annular support plate (6). A sleeve (7) is fixed on the middle upper surface of the annular support plate (6). The outer surface of the sleeve (7) is evenly provided with a plurality of threaded through holes (7.1). The bottom of the dust bag (4) is sleeved on the outer surface of the sleeve (7). A plurality of gaskets (8) are arranged on the outer side of the sleeve (7). The bottom of the dust bag (4) is clamped between the sleeve (7) and the gasket (8) and is clamped by a clamping bolt. (9) is fixed, and one end of the clamping bolt (9) passes through the outer surface of the sleeve (7) and the discharge pipe (3) to abut against the outer surface; the flange (1) and the upper surface edge of the annular support plate (6) are fixedly connected by a steel wire rope (10), and the lower surface of the annular support plate (6) is elastically rotatably provided with automatic interception plates (11) with the same number as the bar-shaped through grooves (3.1), and the automatic interception plates (11) include: a metal strip (11.1) and a plastic baffle (11.2) fixed at one end of the metal strip (11.1), the plastic baffle (11.2) is movably attached to the conical surface on the discharge pipe (3) and at the same time closes the outlet of the bar-shaped through groove (3.1), and a material level meter (12) is fixedly provided above the bar-shaped through groove (3.1) in the discharge pipe (3).

2. A leakage prevention device for a feeding pipe of a fluoride salt feeding vehicle according to claim 1, characterized in that: The feed tube (3) is in a "funnel shape" and has two strip-shaped through grooves (3.1) evenly arranged on its conical surface.

3. The leakage prevention device for the feeding pipe of a fluoride salt feeding vehicle according to claim 1, characterized in that: The gasket (8) has an arc-shaped structure.

4. The device for preventing leakage of a feeding pipe of a fluoride salt feeding vehicle according to claim 1, characterized in that: The upper surface of the metal strip (11.1) is movably in contact with the lower surface of the annular support plate (6), and the other end of the metal strip (11.1) extends out of the outer side of the annular support plate (6).

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