CN214915878U - Vertical alkali-adding and slag-discharging component and hydrogen fluoride reactor - Google Patents

Abstract

A vertical alkali-adding slag discharging component comprises a first screw feeder, a slag discharging vertical pipe, a second screw feeder and a third screw feeder, wherein the first screw feeder and the second screw feeder are horizontally arranged, the slag discharging vertical pipe is vertically arranged, an inlet of the first screw feeder is used for inputting calcium sulfate waste slag, an outlet of the first screw feeder is connected with the upper end of the slag discharging vertical pipe, the lower end of the slag discharging vertical pipe is connected with an inlet of the second screw feeder, an inlet of the third screw feeder is used for inputting solid alkali, an outlet of the third screw feeder is communicated with an inner cavity of the slag discharging vertical pipe, the slag discharging vertical pipe is added, as the calcium sulfate in the slag discharging vertical pipe is conveyed by gravity, the calcium sulfate in the slag discharging vertical pipe is in a relatively loose state, the resistance of the solid alkali in the slag discharging vertical pipe input by the third screw feeder is much smaller, and the problem of large resistance of directly adding the solid alkali into the third screw feeder in the prior art is solved, a hydrogen fluoride reactor is also provided.

Description

Vertical alkali-adding and slag-discharging component and hydrogen fluoride reactor

Technical Field

The utility model relates to an aluminium fluoride production facility technical field, in particular to vertical alkali-adding slag discharging component and hydrogen fluoride reactor.

Background

The hydrogen fluoride is one of raw materials for producing the aluminum fluoride, the hydrogen fluoride is produced by reacting fluorite and sulfuric acid in a rotary reactor, the hydrogen fluoride generated by the reaction needs to enter a washing tower for pretreatment, the washing tower is usually a filler type washing tower, and the calcium sulfate generated by the reaction is discharged through a screw feeder.

The calcium sulfate contains sulfuric acid, which is directly discharged to pollute the environment, and usually, solid alkali is added into a screw feeder to neutralize the sulfuric acid. Because the screw feeder conveys calcium sulfate by means of extrusion force, the inner cavity of the screw feeder is filled with calcium sulfate with certain density, and the resistance existing when external solid caustic soda is added into the screw feeder is larger.

Disclosure of Invention

In view of the above, it is necessary to provide a vertical alkali-adding slag-removing component.

It is also necessary to provide a hydrogen fluoride reactor.

The utility model provides a vertical alkali that adds row's sediment part, includes first screw feeder, arranges sediment standpipe, second screw feeder, third screw feeder, first screw feeder, second screw feeder level set up, arrange the vertical setting of sediment standpipe, the entry of first screw feeder is used for inputing calcium sulfate waste residue, the export of first screw feeder is connected with the upper end of arranging the sediment standpipe, the lower extreme of arranging the sediment standpipe and the entry linkage of second screw feeder, the entry of third screw feeder is used for inputing the solid alkali, the export of third screw feeder and the inner chamber intercommunication of arranging the sediment standpipe.

Preferably, the vertical alkali-adding and slag-discharging component further comprises a cooler and a solid alkali bin, an outlet of the second screw feeder is connected with an inlet of the cooler, and an outlet of the solid alkali bin is connected with an inlet of the third screw feeder.

A hydrogen fluoride reactor comprises a hydrogen fluoride reaction furnace and a vertical alkali-adding and slag-discharging component, wherein an inlet of a first screw feeder is connected with a slag discharging port of the hydrogen fluoride reaction furnace.

Preferably, the hydrogen fluoride reactor further comprises a sulfuric acid discharge pipe fitting and a washing tower, wherein the sulfuric acid discharge pipe fitting comprises a connecting piece, an acid adding vertical pipe and a sulfuric acid spray pipe, the connecting piece comprises a second connecting port, a third connecting port and a fourth connecting port, the sulfuric acid spray pipe and the acidification standpipe are vertically arranged, the upper end of the acidification standpipe is connected with a fourth connecting port, the lower end of the acidification standpipe is connected with an acidification port of the hydrogen fluoride reaction furnace, the upper end of the sulfuric acid spray pipe is used for introducing sulfuric acid, the lower end of the sulfuric acid spray pipe is closed, the outer wall of the sulfuric acid spray pipe close to the closed end is provided with an acid spraying gap which penetrates through the annular wall of the sulfuric acid spray pipe, the lower end of the sulfuric acid spray pipe extends into the connecting piece from the second connecting port, the part of the sulfuric acid spray pipe, which is provided with the acid spraying gap, extends into the acid adding vertical pipe, and the third connecting port is connected with the inlet of the washing tower.

Preferably, the connecting piece comprises a first connecting port, and the first connecting port, the second connecting port, the third connecting port and the fourth connecting port are uniformly distributed along the outer circumferential direction of the connecting piece by taking the center of the connecting piece as the circle center.

Preferably, the first connector cover is combined with a cover body.

Preferably, the outer annular wall of the sulfuric acid spray pipe is hermetically connected with the second connecting port.

Preferably, the sulfuric acid discharge pipe fitting comprises a metering pump, and an outlet of the metering pump is connected with the upper end of the sulfuric acid spray pipe.

Preferably, the washing tower comprises a tower body, a first filler, a second filler and a cyclone column plate, wherein the first filler, the second filler and the cyclone column plate are sequentially arranged in the tower body from top to bottom.

Preferably, the cyclone column plate comprises a core bar, a cover cylinder and a plurality of cyclone blades, wherein the core bar is cylindrical, the cover cylinder is a circular ring body, the core bar is arranged in the cover cylinder, the core bar and the cover cylinder are coaxially arranged, one end of each cyclone blade is fixedly connected with the outer wall of the core bar, the other end of each cyclone blade is fixedly connected with the inner wall of the cover cylinder, the cyclone blades and the axis of the core bar form a preset angle, and the plurality of cyclone blades are uniformly distributed along the circumferential direction of the core bar.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the slag discharging vertical pipe is additionally arranged, because the calcium sulfate in the slag discharging vertical pipe is conveyed by gravity, the calcium sulfate in the slag discharging vertical pipe is in a relatively loose state, the resistance of inputting the solid caustic soda into the slag discharging vertical pipe by using the third screw feeder is much smaller, and the problem that the resistance of directly adding the solid caustic soda into the third screw feeder is large in the prior art is solved.

Drawings

Fig. 1 is a schematic diagram of the structure of the hydrogen fluoride reactor.

FIG. 2 is a schematic structural diagram of the cyclone tray.

Fig. 3 is a schematic structural diagram of the sulfuric acid discharge pipe fitting.

In the figure: the device comprises a sulfuric acid discharge pipe fitting 10, a connecting piece 11, an acid adding vertical pipe 12, a sulfuric acid spray pipe 13, an acid spraying gap 131, a hydrogen fluoride reaction furnace 20, a washing tower 30, a tower body 31, a first filler 32, a second filler 33, a cyclone tower plate 34, a core frame 341, a cover cylinder 342, a cyclone blade 343, a waste acid overflow trough 35, a waste acid pump 36, a fluorite buffer discharge control 40, a storage bin 41, a buffer bin 42, a weighing hopper 43, a fourth screw feeder 44, a vertical alkali adding and slag discharging component 50, a first screw feeder 51, a slag discharging vertical pipe 52, a second screw feeder 53, a third screw feeder 54, a cooler 55 and a solid alkali bin 56.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are 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.

Referring to fig. 1 to 3, the embodiment of the utility model provides a sediment part 50 is arranged to vertical alkalization, including first screw feeder 51, arrange sediment standpipe 52, second screw feeder 53, third screw feeder 54, first screw feeder 51, second screw feeder 53 level sets up, arrange the vertical setting of sediment standpipe 52, first screw feeder 51's entry is used for inputing calcium sulfate waste residue, first screw feeder 51's export and the upper end of arranging sediment standpipe 52 are connected, arrange the lower extreme of sediment standpipe 52 and the entry linkage of second screw feeder 53, third screw feeder 54's entry is used for inputing solid caustic soda, third screw feeder 54's export and the inner chamber intercommunication of sediment standpipe 52.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the slag discharging vertical pipe 52 is added, because the calcium sulfate in the slag discharging vertical pipe 52 is conveyed by gravity, the calcium sulfate in the slag discharging vertical pipe 52 is in a relatively loose state, the resistance of inputting the solid caustic soda into the slag discharging vertical pipe 52 by using the third screw feeder 54 is much smaller, and the problem of large resistance of directly adding the solid caustic soda into the third screw feeder 54 in the prior art is solved.

Referring to fig. 1 to 3, further, the vertical alkalization and deslagging part 50 further comprises a cooler 55 and a solid caustic soda bin 56, an outlet of the second screw feeder 53 is connected with an inlet of the cooler 55, and an outlet of the solid caustic soda bin 56 is connected with an inlet of the third screw feeder 54.

Referring to fig. 1 to fig. 3, the embodiment of the present invention further provides a hydrogen fluoride reactor, which includes a hydrogen fluoride reactor 20 and a vertical alkali-adding slag-discharging component 50, wherein an inlet of the first screw feeder 51 is connected to a slag discharging port of the hydrogen fluoride reactor 20.

Referring to fig. 1 to 3, further, the hydrogen fluoride reactor further includes a sulfuric acid discharge pipe 10 and a washing tower 30, the sulfuric acid discharge pipe 10 includes a connecting member 11, an acid adding vertical pipe 12 and a sulfuric acid spray pipe 13, the connecting member 11 includes a second connecting port, a third connecting port and a fourth connecting port, the sulfuric acid spray pipe 13 and the acid adding vertical pipe 12 are both vertically arranged, the upper end of the acid adding vertical pipe 12 is connected with the fourth connecting port, the lower end of the acid adding vertical pipe 12 is connected with the acid adding port of the hydrogen fluoride reaction furnace 20, the upper end of the sulfuric acid spray pipe 13 is used for introducing sulfuric acid, and the lower end of the sulfuric acid spray pipe 13 is closed, an acid spraying gap 131 is arranged on the outer wall of the sulfuric acid spray pipe 13 close to the closed end, the acid spraying gap 131 penetrates through the annular wall of the sulfuric acid spray pipe 13, the lower end of the sulfuric acid spray pipe 13 extends into the connecting piece 11 from the second connecting port, the part of the sulfuric acid spray pipe 13, provided with the acid spraying gap 131, extends into the acid adding vertical pipe 12, and the third connecting port is connected with the inlet of the washing tower 30.

Of course, the outer diameter of the sulfuric acid spray pipe 13 is smaller than the inner diameter of the second connection port and the inner diameter of the acidification standpipe 12, and the third connection port is communicated with the cavity between the bottom wall of the tower body 31 and the cyclone tray 34 in the tower body 31.

Specifically, the acid spraying slit 131 is a spiral through slit formed on the circumferential wall of the sulfuric acid spraying pipe 13 along the axial direction of the sulfuric acid spraying pipe 13, the sulfuric acid in the sulfuric acid spraying pipe 13 is sprayed from the acid spraying slit 131 into the acid adding vertical pipe 12, a spiral sulfuric acid film is formed between the inner wall of the acid adding vertical pipe 12 and the sulfuric acid spraying pipe 13 by the sprayed sulfuric acid, and in the process that hydrogen fluoride containing dust particles is discharged through the acid adding vertical pipe 12, a layer of sulfuric acid film needs to pass through, so that the dust particle removing effect is greatly improved compared with that of rain-like droplet sulfuric acid.

Referring to fig. 1 to 3, further, the connecting member 11 includes a first connecting port, and the first connecting port, the second connecting port, the third connecting port, and the fourth connecting port are uniformly distributed along the outer circumference of the connecting member 11 with the center of the connecting member 11 as the center of a circle.

Referring to fig. 1 to 3, the first interface cover further includes a cover.

Referring to fig. 1 to 3, further, the outer circumferential wall of the sulfuric acid nozzle 13 is hermetically connected to the second connection port.

Referring to fig. 1 to 3, further, the sulfuric acid discharge pipe 10 includes a metering pump, and an outlet of the metering pump is connected to an upper end of a sulfuric acid spray pipe 13.

Referring to fig. 1 to 3, the washing tower 30 further includes a tower body 31, a first filler 32, a second filler 33, and a cyclone tray 34, and the first filler 32, the second filler 33, and the cyclone tray 34 are sequentially built in the tower body 31 from top to bottom.

Referring to fig. 1 to 3, the cyclone tray 34 further includes a core frame 341, a cover cylinder 342, and a plurality of cyclone blades 343, the core frame 341 is cylindrical, the cover cylinder 342 is a circular ring, the core frame 341 is disposed in the cover cylinder 342, the core frame 341 and the cover cylinder 342 are coaxially disposed, one end of the cyclone blade 343 is fixedly connected to an outer wall of the core frame 341, the other end of the cyclone blade 343 is fixedly connected to an inner wall of the cover cylinder 342, the cyclone blade 343 forms a predetermined angle with an axis of the core frame 341, the plurality of cyclone blades 343 are uniformly distributed along a circumferential direction of the core frame 341.

Compared with the packing, the cyclone tray 34 has stronger capability of removing dust particles with large particle sizes, most of the dust particles are intercepted by the cyclone tray 34, the filtering amount of the dust particles of the first packing 32 and the second packing 33 is reduced, and the blocking condition of the first packing 32 or the second packing 33 is greatly reduced because the dust particles reaching the first packing 32 and the second packing 33 are mainly dust particles with small particle sizes.

Referring to fig. 1 to 3, further, the washing tower 30 further includes a waste acid overflow trough 35 and a waste acid pump 36, an inlet of the waste acid overflow trough 35 is communicated with a cavity between the bottom wall of the tower body 31 and the cyclone tray 34 in the tower body 31, an outlet of the waste acid overflow trough 35 is connected with an inlet of the waste acid pump 36, and an outlet of the waste acid pump 36 is communicated with a cavity between the second filler 33 and the cyclone tray 34 in the tower body 31.

Referring to fig. 1 to 3, further, the outlet of the waste acid pump 36 communicates with the cavity between the first packing 32 and the second packing 33 in the tower 31.

Referring to fig. 1 to 3, further, the outlet of the waste acid pump 36 communicates with the cavity between the top wall of the tower 31 and the first packing 32.

Of course, valves are provided in the piping between the waste acid pump 36 and the column 31.

Referring to fig. 1 to fig. 3, further, the hydrogen fluoride reactor further includes a fluorite buffering blanking control 40, the fluorite buffering blanking control 40 includes a storage bin 41, a buffer bin 42, a weighing hopper 43, and a fourth screw feeder 44, an outlet of the storage bin 41 is connected with an inlet of the buffer bin 42, an outlet of the buffer bin 42 is connected with an inlet of the weighing hopper 43, an outlet of the weighing hopper 43 is connected with an inlet of the fourth screw feeder 44, and an outlet of the fourth screw feeder 44 is connected with a fluorite adding port of the hydrogen fluoride reaction furnace 20.

The fluorite that roughly equals with the volume of predetermineeing in the storage silo 41 is transferred to the surge bin 42 in advance and is kept in, then transfers to the weighing hopper by surge bin 42 and weighs to predetermined volume, because the fluorite quantity of buffering the silo 42 and keeping in temporary is limited, even the fluorite appears the unloading unusually in surge bin 42, the unloading is unstable, can not appear in the twinkling of an eye the unloading after, fluorite can exceed predetermined volume in weighing hopper 43, avoids fluorite measurement trouble and makes production break.

The embodiment of the utility model provides a module or unit in the device can merge, divide and delete according to actual need.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims (10)

1. The utility model provides a vertical alkali-adding row's of sediment part which characterized in that: the device comprises a first screw feeder, a slag discharge vertical pipe, a second screw feeder and a third screw feeder, wherein the first screw feeder and the second screw feeder are horizontally arranged, the slag discharge vertical pipe is vertically arranged, an inlet of the first screw feeder is used for inputting calcium sulfate waste slag, an outlet of the first screw feeder is connected with the upper end of the slag discharge vertical pipe, the lower end of the slag discharge vertical pipe is connected with an inlet of the second screw feeder, an inlet of the third screw feeder is used for inputting solid caustic soda, and an outlet of the third screw feeder is communicated with an inner cavity of the slag discharge vertical pipe.

2. The vertical alkalifying extractor unit of claim 1 wherein: the vertical alkali-adding and slag-discharging component further comprises a cooler and a solid alkali bin, an outlet of the second screw feeder is connected with an inlet of the cooler, and an outlet of the solid alkali bin is connected with an inlet of the third screw feeder.

3. A hydrogen fluoride reactor, characterized by: the vertical alkali-adding and slag-discharging component comprises a hydrogen fluoride reaction furnace and the vertical alkali-adding and slag-discharging component of claim 2, wherein an inlet of the first screw feeder is connected with a slag discharging port of the hydrogen fluoride reaction furnace.

4. A hydrogen fluoride reactor as recited in claim 3 wherein: the hydrogen fluoride reactor further comprises a sulfuric acid discharge pipe fitting and a washing tower, wherein the sulfuric acid discharge pipe fitting comprises a connecting piece, an acid adding vertical pipe and a sulfuric acid spraying pipe, the connecting piece comprises a second connecting port, a third connecting port and a fourth connecting port, the sulfuric acid spraying pipe and the acid adding vertical pipe are vertically arranged, the upper end of the acid adding vertical pipe is connected with the fourth connecting port, the lower end of the acid adding vertical pipe is connected with an acid adding port of the hydrogen fluoride reaction furnace, the upper end of the sulfuric acid spraying pipe is used for introducing sulfuric acid, the lower end of the sulfuric acid spraying pipe is sealed, an acid spraying gap is arranged on the outer wall, close to the sealed end, of the sulfuric acid spraying pipe, the acid spraying gap penetrates through the annular wall of the sulfuric acid spraying pipe, the connecting piece extends into the lower end of the sulfuric acid spraying pipe from the second connecting port, the part, provided with the acid spraying gap, of the sulfuric acid spraying pipe extends into the acid adding vertical pipe, and the third connecting port is connected with an inlet of the washing tower.

5. The hydrogen fluoride reactor of claim 4 wherein: the connecting piece comprises a first connecting port, and the first connecting port, the second connecting port, the third connecting port and the fourth connecting port are uniformly distributed along the outer side circumference of the connecting piece by taking the center of the connecting piece as the circle center.

6. The hydrogen fluoride reactor of claim 5 wherein: the first connecting port is covered with a cover body.

7. The hydrogen fluoride reactor of claim 6 wherein: and the outer annular wall of the sulfuric acid spray pipe is hermetically connected with the second connecting port.

8. The hydrogen fluoride reactor of claim 7 wherein: the sulfuric acid discharge pipe fitting comprises a metering pump, and an outlet of the metering pump is connected with the upper end of the sulfuric acid spray pipe.

9. The hydrogen fluoride reactor of claim 4 wherein: the washing tower comprises a tower body, a first filler, a second filler and a cyclone column plate, wherein the first filler, the second filler and the cyclone column plate are sequentially arranged in the tower body from top to bottom.

10. The hydrogen fluoride reactor of claim 9 wherein: the cyclone column plate comprises a core bar, a cover cylinder and a plurality of cyclone blades, wherein the core bar is cylindrical, the cover cylinder is a circular ring body, the core bar is arranged in the cover cylinder, the core bar and the cover cylinder are coaxially arranged, one end of each cyclone blade is fixedly connected with the outer wall of the core bar, the other end of each cyclone blade is fixedly connected with the inner wall of the cover cylinder, the cyclone blades and the axis of the core bar form a preset angle, and the plurality of cyclone blades are uniformly distributed along the circumferential direction of the core bar.

Images