CN212327642U

CN212327642U - Anhydrous hydrofluoric acid waste liquid recovery device

Info

Publication number: CN212327642U
Application number: CN202020838581.7U
Authority: CN
Inventors: 曹盛世; 王丹; 蒋志平
Original assignee: Jinyang Hi Tech Material Ltd By Share Ltd
Current assignee: Jinyang Hi Tech Material Ltd By Share Ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-01-12
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses a non-aqueous hydrofluoric acid waste liquid recovery device in the technical field of hydrofluoric acid production, which comprises a treatment box, wherein a plurality of heating rods are uniformly fixed in the treatment box, a stop block is fixed at the right side position between the front side wall and the rear side wall of the treatment box corresponding to the heating rods, and a filter screen is fixed between the stop block and the inner wall of the treatment box; the utility model discloses an adding filter screen, heating rod and baffle etc. start the heating rod, and the waste liquid temperature risees, reduces the solubility of calcium sulfate for calcium sulfate fully deposits, and then the starter motor drives gear revolve, then drives second pinion rack and baffle and shifts up along vertical direction, and the waste liquid after the filtration is discharged from the drain pipe and is retrieved, is favorable to the recovery of hydrofluoric acid in the waste liquid, reduces the waste of raw materials; by adding the first cleaning brush and the second cleaning brush, the gear rotates, the first cleaning brush and the second cleaning brush move along with the gear, the filter screen is cleaned, and the filter screen is prevented from being reduced in filtering speed due to deposition and blockage.

Description

Anhydrous hydrofluoric acid waste liquid recovery device

Technical Field

The utility model relates to a hydrofluoric acid production technical field specifically is a anhydrous hydrofluoric acid waste liquid recovery unit.

Background

Hydrofluoric acid is aqueous solution of hydrogen fluoride gas, is clear, colorless, fuming corrosive liquid, has intense pungent smell, and has melting point of-83.3 deg.C, boiling point of 19.54, flash point of 112.2 deg.C, and density of 1.15g/cm³The hydrofluoric acid with low concentration is a weak acid theoretically, has strong corrosivity, can strongly corrode metal, glass and objects containing silicon, such as burns which are difficult to cure when vapor is inhaled or skin is contacted, is generally prepared from fluorite (the main component is calcium fluoride) and concentrated sulfuric acid in a laboratory, needs to be sealed in a plastic bottle, and is stored in a shade and cool place.

The removal of calcium sulfate precipitates in the waste liquid is an important step for recycling the hydrofluoric acid waste liquid, and the hydrofluoric acid waste liquid contains a large amount of recyclable hydrofluoric acid.

Therefore, a recycling device for anhydrous hydrofluoric acid waste liquid is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a no water hydrofluoric acid waste liquid recovery unit to solve and provide the problem among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a anhydrous hydrofluoric acid waste liquid recovery device comprises a treatment box, wherein a liquid inlet pipe is communicated with the middle of the left side wall of the treatment box, a liquid outlet pipe is communicated with the position, close to the bottom wall, of the right side wall of the treatment box, a plurality of heating rods are uniformly fixed in the treatment box, a stop block is fixed at the position, corresponding to the heating rods, of the right side between the front side wall and the rear side wall of the treatment box, a filter screen is fixed between the stop block and the inner wall of the treatment box, a motor is fixed at the top end of the stop block, a gear is fixed at the output end of the motor, a second toothed plate is meshed at the left side of the gear, a baffle is fixed at the left end of the second toothed plate, a support plate is connected at the left end of the baffle in a sliding manner and fixed on the top wall of the treatment box, the bottom end of the baffle is spliced with the bottom wall of the treatment box, the front end, the meshing of gear right side has first pinion rack, the right-hand member of first pinion rack is fixed with the carriage release lever, the right-hand member sliding connection of carriage release lever has the bracing piece, the bracing piece is fixed with processing roof wall, and the left end lower part of carriage release lever is fixed with first cleaning brush.

Preferably, the upper position of the left side wall of the treatment box, which corresponds to the liquid inlet pipe, is fixed with a buffer plate.

Preferably, a shell is fixed on the outer surface of the motor, and the outer surface of the shell is coated with anticorrosive paint.

Preferably, many the surface of heating rod all overlaps and is equipped with clean ring, and is a plurality of the top of clean ring is fixed with same connecting rod, the top of connecting rod is fixed with the slide bar, the rear end of slide bar with handle incasement wall sliding connection and stretch out, and the end that stretches out of slide bar is fixed with the handle.

Preferably, a long rod is further arranged between the sliding rod and the connecting rod, the bottom end of the long rod is fixed with the connecting rod, and the top end of the long rod is fixed with the sliding rod.

Preferably, the slide bar is positioned above the liquid inlet pipe.

The utility model has the advantages that:

1. by adding the filter screen, the heating rod, the baffle and the like, the heating rod is started, the temperature of the waste liquid is raised, the solubility of calcium sulfate is reduced, the calcium sulfate is fully precipitated, after a period of time, the motor is started to drive the gear to rotate, and then the second toothed plate and the baffle are driven to move upwards in the vertical direction, the waste liquid after solid-liquid separation of the filter screen is discharged and recovered from the liquid outlet pipe, the recovery of hydrofluoric acid in the waste liquid is facilitated, and the waste of raw materials is reduced;

2. by adding the first cleaning brush, the second cleaning brush and the like, the gear rotates to drive the first toothed plate and the second toothed plate to move, and then the moving plate and the baffle plate are driven to move, the first cleaning brush and the second cleaning brush also move along with the first cleaning brush and the second cleaning brush to clean the filter screen, so that the filter screen is prevented from being reduced in filtering speed due to precipitation and blockage;

3. through adding clean ring, slide bar and handle etc. pulling the handle, drive slide bar and clean ring and remove, clear up the calcium sulphate sediment on heating rod surface, avoid deposiing too much caking and reduce the heat transfer efficiency of heating rod.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the structure A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged schematic view of the structure B of FIG. 1 according to the present invention;

fig. 4 is a left side view of the structure of the heating rod and the cleaning ring of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-treatment box, 2-liquid inlet pipe, 3-buffer plate, 4-liquid outlet pipe, 5-heating rod, 6-cleaning ring, 7-first cleaning brush, 8-connecting rod, 9-sliding rod, 10-handle, 11-supporting rod, 12-moving rod, 13-first toothed plate, 14-gear, 15-stop block, 16-filter screen, 17-supporting plate, 18-baffle, 19-second toothed plate, 20-second cleaning brush and 21-long rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides an anhydrous hydrofluoric acid waste liquid recovery unit, is equipped with the side door including

handling case

1, 1 leading flank of handling case, but the side door is equipped with the viewport. The middle part of the left side wall of the treatment box 1 is communicated with a liquid inlet pipe 2; handle 1 left side wall and correspond the top rigidity of feed liquor pipe 2 and have buffer board 3, reduce the wave in handling 1 case, be favorable to deposiing. A liquid outlet pipe 4 is communicated with the position of the right side wall of the treatment box 1, which is close to the bottom wall of the treatment box; a plurality of heating rods 5 are uniformly fixed in the treatment box 1; and a stop block 15 is fixed between the front side wall and the rear side wall of the treatment box 1 corresponding to the right side position of the heating rod 5. A filter screen 16 is fixed between the stop block 15 and the inner wall of the treatment box 1; and a motor is fixed at the top end of the stop block 15, a shell is fixed on the outer surface of the motor, and anti-corrosion paint is coated on the outer surface of the shell. The output end of the motor is fixed with a gear 14, the left side of the gear 14 is engaged with a second gear plate 19, the left end of the second gear plate 19 is fixed with a baffle 18, the left end of the baffle 18 is connected with a support plate 17 in a sliding manner, and the support plate 17 is fixed with the top wall of the treatment box 1. The bottom end of the baffle plate 18 is inserted with the bottom wall of the treatment box 1; the front end and the rear end of the baffle plate 18 are respectively connected with the front side wall and the rear side wall of the treatment box 1 in a sliding way; a second cleaning brush 20 is fixed to a lower portion of a right end of the baffle plate 18. The meshing of gear 14 right side has first pinion rack 13, and the right-hand member of first pinion rack 13 is fixed with carriage release lever 12, and the right-hand member sliding connection of carriage release lever 12 has bracing piece 11, and bracing piece 11 is fixed with treatment case 1 roof, and the left end lower part of carriage release lever 12 is fixed with first cleaning brush 7.

The surface of many heating rods 5 all is equipped with clean ring 6 by the cover, and the top of a plurality of clean ring 6 is fixed with same connecting rod 8. A slide bar 9 is fixed at the top end of the connecting bar 8, and the rear end of the slide bar 9 is connected with the inner wall of the treatment box 1 in a sliding way and extends out; and a handle 10 is fixed at the extending end of the sliding rod 9. Still be equipped with stock 21 between slide bar 9 and the connecting rod 8, the bottom and the connecting rod 8 of stock 21 are fixed, and the top and the slide bar 9 of stock 21 are fixed. The slide bar 9 is positioned above the liquid inlet pipe 2.

The working principle in the embodiment is as follows:

the waste liquid enters the treatment box 1 from the liquid inlet pipe 2, the height of the liquid level in the treatment box 1 is observed from a visible port, the waste liquid is stopped to be injected when the liquid level is close to the liquid inlet pipe 2, the heating rod 5 is started to heat the waste liquid, the solubility of calcium sulfate is reduced, and the calcium sulfate is fully precipitated; after a period of time, the motor is started to drive the gear 14 fixed with the output end of the motor to rotate, the gear 14 rotates clockwise to drive the second toothed plate 19 meshed on the left side of the gear 14 to move upwards along the vertical direction, then the baffle 18 fixed with the second toothed plate 19 is driven to move upwards, the bottom end of the baffle 18 is separated from the bottom wall of the treatment box 1, the precipitated waste liquid flows out after being filtered by the filter screen 16 and is discharged and recovered from the liquid outlet pipe 4, the recovery of hydrofluoric acid in the waste liquid is facilitated, and the waste of raw materials is reduced; when next batch of waste liquid needs to be precipitated and filtered, the motor drives the gear 14 to rotate anticlockwise, the second toothed plate 19 meshed with the left side of the gear 14 and the baffle 18 move downwards simultaneously, the bottom end of the baffle 18 is inserted with the bottom wall of the treatment box 1, in addition, when the gear 14 rotates and drives the baffle 18 and the movable rod 12 to move along the vertical direction, the second cleaning brush 20 fixed at the right end of the baffle 18 is driven to move, the first cleaning brush 7 fixed at the left end of the movable rod 12 is also driven to move, the first cleaning brush 7 and the second cleaning brush 20 clean the surface of the filter screen 16, and the filter screen 16 is prevented from being reduced in filtering speed due to precipitation and blockage; the handle 10 is pulled regularly to drive the sliding rod 9 and the cleaning ring 6 to move, calcium sulfate sediment on the surface of the heating rod is cleaned, and the phenomenon that the heat transfer efficiency of the heating rod is reduced due to excessive caking of the sediment is avoided.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides an anhydrous hydrofluoric acid waste liquid recovery unit, is including handling case (1), its characterized in that: the device is characterized in that a liquid inlet pipe (2) is communicated with the middle of the left side wall of the treatment box (1), a liquid outlet pipe (4) is communicated with the position, close to the bottom wall, of the right side wall of the treatment box (1), a plurality of heating rods (5) are uniformly fixed in the treatment box (1), a stop block (15) is fixed at the right side position, corresponding to the heating rods (5), between the front side wall and the rear side wall of the treatment box (1), a filter screen (16) is fixed between the stop block (15) and the inner wall of the treatment box (1), a motor is fixed at the top end of the stop block (15), a gear (14) is fixed at the output end of the motor, a second toothed plate (19) is meshed at the left side of the gear (14), a baffle plate (18) is fixed at the left end of the second toothed plate (19), a support plate (17) is slidably connected with the left end of the baffle plate (18), the top wall of the treatment box (1) is fixed with, and both ends respectively with the front and back both sides wall sliding connection who handles case (1) around baffle (18), the right-hand member lower part of baffle (18) is fixed with second cleaning brush (20), gear (14) right side meshing has first pinion rack (13), the right-hand member of first pinion rack (13) is fixed with carriage release lever (12), the right-hand member sliding connection of carriage release lever (12) has bracing piece (11), bracing piece (11) are fixed with handling case (1) roof, and the left end lower part of carriage release lever (12) is fixed with first cleaning brush (7).

2. The anhydrous hydrofluoric acid waste liquid recovery apparatus according to claim 1, wherein: the upper position of the left side wall of the treatment box (1) corresponding to the liquid inlet pipe (2) is fixed with a buffer plate (3).

3. The anhydrous hydrofluoric acid waste liquid recovery apparatus according to claim 1, wherein: a shell is fixed on the outer surface of the motor, and anti-corrosion paint is coated on the outer surface of the shell.

4. The anhydrous hydrofluoric acid waste liquid recovery apparatus according to claim 1, wherein: many the surface of heating rod (5) all overlaps and is equipped with clean ring (6), and is a plurality of the top of clean ring (6) is fixed with same connecting rod (8), the top of connecting rod (8) is fixed with slide bar (9), the rear end of slide bar (9) with handle case (1) inner wall sliding connection and stretch out, and the end that stretches out of slide bar (9) is fixed with handle (10).

5. The anhydrous hydrofluoric acid waste liquid recovery apparatus according to claim 4, wherein: still be equipped with stock (21) between slide bar (9) and connecting rod (8), the bottom and connecting rod (8) of stock (21) are fixed, and the top and slide bar (9) of stock (21) are fixed.

6. The anhydrous hydrofluoric acid waste liquid recovery apparatus according to claim 4, wherein: the slide bar (9) is positioned above the liquid inlet pipe (2).