Protective cover for mold cleaning alkali liquor pool

Abstract

The utility model relates to a protective cover for a mold cleaning alkali liquor pool, a supporting block is pressed on the upper end face of the alkali liquor pool beside an opening and supports the protective cover, and a baffle at the front end and a baffle at the rear end are respectively contacted with the outer surface of the side wall of the front end and the outer surface of the side wall of the rear end of the alkali liquor pool so as to shield the opening on the same side. The surfaces of the edges of the two sides of the protective cover are respectively close to or attached to the edge of the top plate above the opening of the air suction opening on the same side, all the structures are matched with one another, so that the front portion and the rear portion of the opening of the alkali liquor pool are shielded by the baffles, and the two sides of the opening of the alkali liquor pool are communicated with the air suction openings through the gaps between the supporting blocks. Meanwhile, the edges of the two sides of the protective cover shield a channel communicated with the opening and the air suction opening through the gap from the upper portion, hydrogen and alkali mist generated by reaction can be sucked away by the air suction opening as much as possible, and normal cleaning work and the safety of field workers are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of aluminum alloy production mould cleaning, and relates to an alkali cleaning equipment for an aluminum alloy extrusion die, in particular to a die cleaning alkali pool protective cover. BACKGROUND

[0002] Various types of dies are installed in the extruder, and the extruded material becomes a profile after passing through the die. The die used for a long time will adhere to aluminum alloy scraps. In the prior art, the die is cleaned by using a sodium hydroxide solution, and the cleaning of the die is completed after rinsing. The commonly used cleaning equipment includes an alkali pool 8, a hot water pool 10 and a cold water pool 12. The die is soaked in the alkali pool, and the aluminum alloy scraps are dissolved. Then the die is soaked in the hot water pool and finally in the cold water pool before being taken out. The alkali pool is filled with a sodium hydroxide solution. When the solution reacts with the aluminum alloy scraps, the reaction is relatively violent, and hydrogen gas and alkali mist are generated. The hydrogen gas and the alkali mist need to be treated, otherwise the health of the operator will be affected and a fire will be caused. Therefore, suction ports 13 are installed on both sides of the alkali pool. The suction ports are connected to the inlet of a fan 3 through a pipeline 4, the outlet of the fan is connected to a recovery tower 2, water in a water tank 1 in the recovery tower is sprayed to recover the alkali mist, and the hydrogen gas is transported from the upper end of the recovery tower to the next recovery process for treatment. In actual use, it is found that because the reaction of alkali cleaning is relatively violent sometimes, the suction ports on both sides of the alkali pool cannot recover all the alkali mist and hydrogen gas in time, resulting in a large amount of corrosive gas and flammable gas near the equipment. SUMMARY

[0003] The utility model aims at overcoming the defects of the prior art and provides a die cleaning alkali pool protective cover.

[0004] The utility model adopts the technical scheme of:

[0005] A die cleaning alkali pool protective cover, which comprises an alkali pool and suction ports, one suction port is arranged on each side of the alkali pool, characterized in that: a protective cover is buckled on the upper end opening of the alkali pool. The protective cover blocks the openings on the same side at the front end and the rear end of the alkali pool. The two sides of the protective cover near the two suction ports are provided with slits for connecting the openings and the suction ports.

[0006] Further, a baffle is arranged on the front side and the rear side of the bottom surface of the protective cover, respectively. The two baffles block the openings on the same side, respectively.

[0007] Further, at least one support block is arranged on the bottom surface of the protective cover at the rear side of the baffle at the front end of the protective cover, and at least one support block is arranged on the bottom surface of the protective cover at the front side of the baffle at the rear end of the protective cover. All the support blocks press on the upper end surface of the alkali pool beside the opening and support the protective cover.

[0008] Further, the gap between the support block at the front end and the support block at the rear end of the same side of the bottom surface of the protective cover is arranged to communicate the opening with the air suction port.

[0009] Further, the surfaces of the two edges of the protective cover on both sides are respectively close to or adhere to the edges of the top plate above the air suction port opening on the same side.

[0010] Further, the bottom surface of the protective cover is provided with a plurality of longitudinal beams spaced from each other, and the longitudinal beams are connected to the transverse beams arranged on the bottom surface of the protective cover.

[0011] Further, the protective cover is provided with an observation port.

[0012] Further, the observation port is provided with a transparent window or an openable flap.

[0013] The advantages and positive effects of the utility model are:

[0014] In the utility model, a protective cover is buckled on the upper end of the lye tank, a baffle is arranged at the front end and the rear end of the protective cover respectively, a support block is arranged on the opposite surface of the two baffles respectively, the support block is pressed on the upper end surface of the lye tank beside the opening and supports the protective cover, the front end baffle and the rear end baffle are in contact with the outer surface of the front end side wall and the rear end side wall of the lye tank respectively, thereby shielding the opening on the same side, the gap between the two support blocks in front and behind makes the opening and the air suction port communicate, the surfaces of the edges of the protective cover on both sides are respectively close to or adhere to the edges of the top plate above the air suction port opening on the same side, the above-mentioned structures are matched with each other, the opening of the lye tank is shielded by the baffles in front and behind, the two sides communicate with the air suction port through the gap between the support blocks, meanwhile, the edges of the protective cover on both sides shield the channel for the opening and the air suction port to communicate through the gap from above, the hydrogen gas and the alkali mist generated in the reaction can be sucked away by the air suction port as much as possible, and the normal cleaning work is ensured to be carried out and the safety of the on-site workers is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a use state schematic view of the utility model;

[0016] Figure 2 is Figure 1 the enlarged right view of the lye tank of

[0017] Figure 3 is Figure 2 the A-A cross-sectional view of

[0018] Figure 4 is Figure 1 the bottom view of the protective cover of DETAILED DESCRIPTION

[0019] The utility model is further illustrated below in combination with the embodiments, the following embodiments are illustrative, not restrictive, and the protection scope of the utility model cannot be limited by the following embodiments.

[0020] A mould cleaning alkali solution pool protective cover, comprising an alkali solution pool 8 and an air suction opening 13, one air suction opening is arranged on each side of the alkali solution pool, an opening is arranged on the upper end of the alkali solution pool, a protective cover 15 is buckled on the opening, the protective cover blocks the opening on the same side of the front end (the left side of the alkali solution pool) and the rear end (the right side of the alkali solution pool), and slits 22 for enabling the opening to communicate with the air suction opening are arranged on the two sides of the protective cover close to the two air suction openings. Figure 1 Figure 1 The bottom surface of the protective cover is provided with a baffle 16 on the front side and the rear side, as shown in the drawings, the baffle on the front end and the baffle on the rear end are in contact with the outer surfaces of the front end side wall and the rear end side wall of the alkali solution pool respectively, so as to block the opening, that is, the front end and the rear end of the opening communicate with the outside.

[0021] The bottom surface of the protective cover on the rear side of the baffle on the front end of the protective cover is provided with at least one supporting block 19, and the bottom surface of the protective cover on the front side of the baffle on the rear end of the protective cover is provided with at least one supporting block, all the supporting blocks are pressed on the upper end surface of the alkali solution pool beside the opening and support the protective cover. Figure 3

[0022] As shown in the drawings, four supporting blocks are arranged at the same time, and each supporting block is pressed on the upper end surface at the four corners of the opening. Figure 3 4 As shown in the drawings, the slits 22 between the supporting block on the front end and the supporting block on the rear end on the same side of the bottom surface of the protective cover enable the opening to communicate with the air suction opening.

[0023] As shown in the drawings, the surfaces of the two edges 17 on the two sides of the protective cover are close to the edges of the top plate 18 above the air suction opening 13 on the same side or the surfaces of the two edges are close to the edges of the top plate above the air suction opening on the same side. Figure 3 4 The bottom surface of the protective cover is provided with a plurality of longitudinal beams 21 spaced from each other, and the plurality of longitudinal beams are connected with the transverse beams 20 arranged on the bottom surface of the protective cover.

[0024] The protective cover is provided with an observation port 23, and the observation port is provided with a transparent window or an openable flap. Figure 2 The use process of the utility model is as follows:

[0025] The mould is placed in the alkali solution pool, the protective cover is covered, the edges on the two sides of the protective cover block the two sides of the opening, and the front and rear baffles block the front end and the rear end of the opening.

[0026]

[0027] ​​​​​The aluminum alloy scraps on the mold react with sodium hydroxide to produce hydrogen gas and alkali mist, which enters the side wind box 6 through the opening, gap, suction port, and then enters the inlet of the fan 3 through the collection box 5 and pipeline 4, and then enters the recovery tower 2 from the outlet.

[0028] The alkali mist is recovered by the water sprayed in the recovery tower, and the hydrogen gas is transported to the next step of the recovery process through the upper end of the recovery tower.

[0029] After a period of reaction, the staff observes the reaction through the transparent window of the observation port or opens the hatch and observes the reaction through the observation port.

[0030] The above-mentioned structures cooperate with each other to block the opening of the alkali tank by the baffle in front and behind, and the gap between the two sides of the support block and the suction port are communicated, and the two sides of the protective cover block the channel of the opening and the suction port communicated through the gap from the top, so that the hydrogen gas and alkali mist generated in the reaction can be as much as possible sucked away by the suction port, ensuring the normal cleaning work and the safety of the on-site staff.

Claims

1. A mold cleaning caustic tank protection cover, comprising a caustic tank and a suction port, one suction port is arranged on each side of the caustic tank, characterized in that: The protection cover is buckled on the upper end of the lye pool, and blocks the openings on the same side at the front end and the rear end of the lye pool.

2. The caustic tank protective cover of claim 1, wherein: Front and rear sides of the bottom surface of the protection cover are respectively provided with a baffle, and the two baffles respectively block the openings on the same side.

3. The caustic tank protective cover of claim 2, wherein: The bottom surface of the protection cover at the rear side of the baffle at the front end of the protection cover is provided with at least one support block, and the bottom surface of the protection cover at the front side of the baffle at the rear end of the protection cover is provided with at least one support block, and all the support blocks are pressed on the upper end surface of the lye pool beside the openings and support the protection cover.

4. The caustic tank protective cover of claim 3, wherein: The gap between the support block at the front end and the support block at the rear end on the same side of the bottom surface of the protection cover makes the openings communicate with the air inlets.

5. The caustic tank protective cover of claim 4, wherein: The surfaces of the two edges of the protection cover are respectively close to the edges of the top plate above the air inlet openings on the same side or are respectively close to the edges of the top plate above the air inlet openings on the same side.

6. The caustic tank protective cover of claim 2 or 3 or 4 or 5, wherein: The bottom surface of the protection cover is provided with a plurality of longitudinal beams spaced from each other, and the longitudinal beams are connected with the transverse beams provided on the bottom surface of the protection cover.

7. The caustic tank protective cover of claim 2 or 3 or 4 or 5, wherein: The protection cover is provided with an observation port.

8. The caustic tank protective cover of claim 6, wherein: The protection cover is provided with an observation port.

9. The caustic tank protective cover of claim 7, wherein: The observation port is provided with a transparent window or an openable flap.

10. The caustic tank protective cover of claim 8, wherein: The observation port is provided with a transparent window or an openable flap.

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