CN212609973U

CN212609973U - Water-containing hydrofluoric acid waste liquid recovery device

Info

Publication number: CN212609973U
Application number: CN202021054694.4U
Authority: CN
Inventors: 任勇; 陈道友; 化双林
Original assignee: Jinyang Hi Tech Material Ltd By Share Ltd
Current assignee: Jinyang Hi Tech Material Ltd By Share Ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-02-26
Anticipated expiration: 2030-06-10

Abstract

The utility model discloses a hydrofluoric acid waste liquid recovery device with water, which belongs to the technical field of hydrofluoric acid production, and comprises a separation box, wherein the bottom wall of the separation box is communicated with a collecting tube through a collecting tube, the top end of the collecting tube is provided with a sealing plate, the top end of the sealing plate is fixed with a pressure bar, the top end of the pressure bar is fixed with an electric push rod, the electric push rod and the top wall of the separation box are fixedly penetrated, the position of the bottom wall of the separation box, which is close to the collecting tube, is connected with a recovery tube with a valve, a filter cylinder is fixed at the position of the bottom wall of the separation box, which corresponds to the recovery tube, a transverse scraping; the utility model realizes the separation and recovery of calcium sulfate and hydrofluoric acid by adding the filter cylinder, the sealing plate, the collecting pipe and the like, which is beneficial to saving resources; by adding the transverse scraping rod, the vertical scraping rod, the stirring rod and the like, the filter cartridge is prevented from being blocked, so that the separation efficiency is reduced, and the lime water can be fully reacted with a small amount of waste liquid falling from the collecting pipe.

Description

Water-containing hydrofluoric acid waste liquid recovery device

Technical Field

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

Background

Hydrofluoric acid is an aqueous solution of hydrogen fluoride gas, clear, colorless, fuming, corrosive liquid, with a severe pungent odor. Melting point-83.3 deg.C, boiling point 19.5 deg.C, density 1.15g/cm 3. Is easily soluble in water and ethanol, and slightly soluble in diethyl ether. Because the bonding capacity between hydrogen atoms and fluorine atoms is relatively strong, and hydrogen bonds exist between hydrogen fluoride molecules in an aqueous solution, hydrofluoric acid cannot be completely ionized in water, and therefore, the hydrofluoric acid with low concentration is theoretically a weak acid. Has extremely strong corrosivity, and can strongly corrode metal, glass and objects containing silicon. Such as inhalation of steam or contact with the skin, can cause difficult to heal burns. The laboratory is generally prepared from fluorite (the main component is calcium fluoride) and concentrated sulfuric acid, and the fluorite and the concentrated sulfuric acid are sealed in a plastic bottle and stored in a cool place.

The waste liquid that produces contains more calcium sulfate in hydrofluoric acid production, need separate the calcium sulfate in the waste liquid, realize then that calcium sulfate and hydrofluoric acid's separation are retrieved, recovery unit among the prior art is usually directly discharged the waste liquid to the collecting pit and is neutralized, has caused the waste of resource.

Therefore, a recycling device of hydrofluoric acid waste liquid with water is provided to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a there is 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 hydrofluoric acid waste liquid recovery device with water comprises a separation box, wherein the left side wall of the separation box is communicated with a feeding pipe, the bottom wall of the separation box is communicated with a collecting tube through a collecting tube, a sealing plate is arranged at the top end of the collecting tube, a pressing rod is fixed at the top end of the sealing plate, an electric push rod is fixed at the top end of the pressing rod and penetrates through and is fixed with the top wall of the separation box, the position, close to the collecting tube, of the bottom wall of the separation box is connected with a recovery tube with a valve, a filter cylinder is fixed at the position, corresponding to the recovery tube, of the bottom wall of the separation box, a transverse scraping rod is arranged above the filter cylinder, vertical scraping rods are symmetrically fixed at the left end and the right end of the transverse scraping rod, a first rotating shaft is fixed at the top end of the first rotating shaft and is rotatably connected with the inner wall of the separation box, a first bevel gear is fixed at, the right-hand member of pivot two rotates with the separator box inner wall and is connected and stretch out, the collector cylinder inner wall rotates and is connected with pivot three, pivot three is fixed with a plurality of stirring rods, and the right-hand member of pivot three stretches out the collector cylinder and is connected with the motor, pivot three corresponds with the pivot two.

Preferably, the top end face of the sealing plate is an inclined face, so that the precipitate can fall conveniently.

Preferably, a support rod is further arranged between the first rotating shaft and the inner wall of the separation box, the first rotating shaft is rotatably connected with the support rod, and the right end of the support rod is fixed to the right side wall of the separation box.

Preferably, a first belt wheel is fixed at the extending end of the second rotating shaft, a second belt wheel is fixed at the position, corresponding to the first belt wheel, of the third rotating shaft, and a transmission belt is sleeved between the first belt wheel and the second belt wheel.

Preferably, a support column is further arranged between the separation box and the collecting barrel, the top end of the support column is fixed with the separation box, and the bottom end of the support column is fixed with the collecting barrel.

The utility model has the advantages that:

1. by adding the filter cylinder, the sealing plate, the collecting pipe and the like, waste liquid enters from the feeding pipe, precipitates are retained in the separation box, filtrate enters into the recovery pipe through the filter cylinder and then is discharged and recovered from the recovery pipe, the electric push rod is started to drive the sealing plate to move upwards, the precipitates and a small amount of waste liquid enter the collecting cylinder from the collecting pipe, the waste liquid reacts with lime water in the collecting cylinder for precipitation, the collecting cylinder is cleaned regularly, separation and recovery of calcium sulfate and hydrofluoric acid are realized, and resource saving is facilitated;

2. through adding horizontal scraping rod, perpendicular scraping rod and stirring rod etc. starter motor drives horizontal scraping rod simultaneously, erects scraping rod and stirring rod and rotates, and horizontal scraping rod, perpendicular scraping rod can clear up straining the sediment on section of thick bamboo surface, avoid straining a section of thick bamboo and block up and reduce separation efficiency, and the stirring rod stirs lime wash, is favorable to lime wash and the abundant reaction of a small amount of waste liquid that falls down from the collecting pipe.

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 a schematic view of the three-dimensional structure of the present invention.

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

1-separation box, 2-feeding pipe, 3-collecting pipe, 4-collecting cylinder, 5-sealing plate, 6-pressure rod, 7-electric push rod, 8-recovery pipe, 9-filter cylinder, 10-support rod, 11-vertical scraping rod, 12-horizontal scraping rod, 13-rotating shaft I, 14-bevel gear I, 15-bevel gear II, 16-rotating shaft II, 17-belt wheel I, 18-transmission belt, 19-belt wheel II, 20-rotating shaft III, 21-stirring rod and 22-motor.

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. 1-3, the present invention provides a technical solution: a hydrofluoric acid waste liquid recovery device with water comprises a separation box 1. The left side wall of the separation box 1 is communicated with a feeding pipe 2; the bottom wall of the separation box 1 is communicated with a collecting cylinder 4 through a collecting pipe 3, the left side wall of the collecting cylinder 4 is connected with a liquid inlet pipe with a valve, lime water is filled in the collecting cylinder 4, and the rear side surface of the collecting cylinder 4 is provided with a side door; still be equipped with the support column between separator box 1 and the surge drum 4, the top and the separator box 1 of support column are fixed, and the bottom and the surge drum 4 of support column are fixed. The top end of the collecting pipe 3 is provided with a sealing plate 5, and the top end face of the sealing plate 5 is an inclined face, so that the sediment can slide down from the top end of the sealing plate 5. The top end of the sealing plate 5 is fixed with a pressure lever 6, the top end of the pressure lever 6 is fixed with an electric push rod 7, the electric push rod 7 is externally connected with a power supply, and the electric push rod 7 is fixedly penetrated with the top wall of the separation box 1. The bottom wall of the separation box 1 is connected with a recovery pipe 8 with a valve at a position close to the collection pipe 3; and a filter cartridge 9 is fixed to the bottom wall of the separation tank 1 at a position corresponding to the recovery pipe 8. A transverse scraping rod 12 is arranged above the filter cylinder 9, and vertical scraping rods 11 are symmetrically fixed at the left end and the right end of the transverse scraping rod 12; and a first rotating shaft 13 is fixed at the top end of the transverse scraping rod 12. The first rotating shaft 13 is rotatably connected with the inner wall of the separation box 1; and a first bevel gear 14 is fixed at the top end of the first rotating shaft 13, a second bevel gear 15 is meshed with the right side of the first bevel gear 14, a second rotating shaft 16 is fixed at the right end of the second bevel gear 15, and the right end of the second rotating shaft 16 is rotatably connected with and extends out of the inner wall of the separation box 1. The inner wall of the collecting cylinder 4 is rotatably connected with a third rotating shaft 20, and a plurality of stirring rods 21 are fixed on the third rotating shaft 20; and the right end of the rotating shaft III 20 extends out of the collecting cylinder 4 and is connected with a motor 22. The motor 22 is fixed with the collecting cylinder 4; the motor 22 is externally connected with a power supply. The rotating shaft III 20 is correspondingly connected with the rotating shaft II 16, a belt wheel I17 is fixed at the extending end of the rotating shaft II 16, a belt wheel II 19 is fixed at the position, corresponding to the belt wheel I17, of the rotating shaft III 20, and a transmission belt 18 is sleeved between the belt wheel I17 and the belt wheel II 19.

A support rod 10 is further arranged between the first rotating shaft 13 and the inner wall of the separation box 1, the first rotating shaft 13 is rotatably connected with the support rod 10, and the right end of the support rod 10 is fixed with the right side wall of the separation box 1.

The working principle in the embodiment is as follows:

waste liquid enters the separation box 1 from the feeding pipe 5, precipitates are retained in the separation box 1, filtrate enters the recovery pipe 8 through the filter cylinder 9, is discharged and recovered from the recovery pipe 8, then the electric push rod 7 is started, the electric push rod 7 is shortened, the compression rod 6 fixed at the bottom end of the movable rod of the electric push rod 7 is driven to move upwards, then the sealing plate 5 fixed at the bottom end of the compression rod 6 is driven to move upwards, the precipitates and a small amount of waste liquid enter the collection cylinder 4 from the collection pipe 3, the waste liquid reacts with lime water in the collection cylinder 4 for precipitation, the collection cylinder 4 is cleaned regularly, separation and recovery of calcium sulfate and hydrofluoric acid are realized, and resource saving is facilitated; meanwhile, the motor 22 is started to drive the rotating shaft III 20 to rotate, and then the stirring rod 21 is driven to rotate, and the stirring rod 21 stirs the lime water, so that the lime water can be fully reacted with a small amount of waste liquid falling from the collecting pipe 3; the third rotating shaft 20 rotates to drive the second belt wheel 19 fixed on the third rotating shaft 20 to rotate, the first belt wheel 17 is driven to rotate through the transmission action of the rotating belt 18, then the second rotating shaft 16 fixed with the first belt wheel 17 is driven to rotate, the first rotating shaft 13 fixed with the first bevel gear 14 is driven to rotate through the transmission action of the first bevel gear 14 and the second bevel gear 15, then the transverse scraping rod 12 and the vertical scraping rod 11 are driven to rotate, the sediment on the surface of the filter cartridge 9 is cleaned, and the filter cartridge 9 is prevented from being blocked to reduce the separation efficiency.

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 a there is sour waste liquid recovery unit of water hydrofluoric acid, includes separator box (1), its characterized in that: the separation box is characterized in that the left side wall of the separation box (1) is communicated with a feeding pipe (2), the bottom wall of the separation box (1) is communicated with a collecting cylinder (4) through a collecting pipe (3), a sealing plate (5) is arranged at the top end of the collecting pipe (3), a pressure lever (6) is fixed at the top end of the sealing plate (5), an electric push rod (7) is fixed at the top end of the pressure lever (6), the electric push rod (7) is fixedly penetrated with the top wall of the separation box (1), a recovery pipe (8) with a valve is connected to the position, close to the collecting pipe (3), of the bottom wall of the separation box (1), a filter cylinder (9) is fixed at the position, corresponding to the recovery pipe (8), of the bottom wall of the separation box (1), a transverse scraping rod (12) is arranged above the filter cylinder (9), vertical scraping rods (11) are symmetrically fixed at the left end and the right end of the transverse scraping rod (12), a first rotating shaft (13), and the top of pivot one (13) is fixed with bevel gear one (14), the right side meshing of bevel gear one (14) has bevel gear two (15), bevel gear two (15) right-hand member is fixed with pivot two (16), the right-hand member of pivot two (16) rotates with separator box (1) inner wall to be connected and stretches out, collecting vessel (4) inner wall rotates and is connected with pivot three (20), pivot three (20) are fixed with a plurality of stirring rods (21), and the right-hand member of pivot three (20) stretches out collecting vessel (4) and is connected with motor (22), pivot three (20) correspond with pivot two (16) and are connected.

2. The apparatus for recovering hydrofluoric acid waste liquid with water according to claim 1, wherein: the top end face of the sealing plate (5) is an inclined face.

3. The apparatus for recovering hydrofluoric acid waste liquid with water according to claim 1, wherein: still be equipped with bracing piece (10) between pivot (13) and separator box (1) inner wall, pivot (13) rotate with bracing piece (10) and are connected, bracing piece (10) right-hand member is fixed with separator box (1) right side wall.

4. The apparatus for recovering hydrofluoric acid waste liquid with water according to claim 1, wherein: the extension end of the second rotating shaft (16) is fixed with a first belt wheel (17), the position of the third rotating shaft (20) corresponding to the first belt wheel (17) is fixed with a second belt wheel (19), and a transmission belt (18) is sleeved between the first belt wheel (17) and the second belt wheel (19).

5. The apparatus for recovering hydrofluoric acid waste liquid with water according to claim 1, wherein: still be equipped with the support column between separator box (1) and collecting vessel (4), the top and the separator box (1) of support column are fixed, and the bottom and the collecting vessel (4) of support column are fixed.