CN201158720Y

CN201158720Y - Charging device for fluoridation salt material box on electrolytic tank

Info

Publication number: CN201158720Y
Application number: CNU200820010642XU
Authority: CN
Inventors: 杨大勇; 董明义; 程坦; 张德明
Original assignee: SHENYANG CHENGSHUNDA INDUSTRY TECHNOLOGY Co Ltd
Current assignee: SHENYANG CHENGSHUNDA INDUSTRY TECHNOLOGY Co Ltd
Priority date: 2008-02-03
Filing date: 2008-02-03
Publication date: 2008-12-03
Anticipated expiration: 2018-02-03

Abstract

A fluoride salt work bin charging device on an electrolytic tank is provided, wherein a fluoride salt work bin is connected with a dense-phase transmitting tank through a chute and a delivery conduit. The charging device is characterized in that the dense-phase transmitting tank is connected in series with at least two discharging dump valves through dense-phase delivery conduits, and the final end of the dense-phase transmitting tank is connected with a dense-phase delivery expansion work bin, each discharging dump valve and the lower end of the dense-phase delivery expansion work bin on the tail end are respectively connected with the upper surface of a wall work bin, the lower opening of the wall work bin is connected with a chute, and the outlet end of the chute is connected on the fluoride salt work bin on the electrolytic tank. The utility model has the advantages of simple control, lower investment cost, easy construction, operation and maintenance, lower operation cost and convenient manufacture.

Description

The charging fluoride salt bin on electrobath device

Technical field:

The utility model relates to a kind of device to fluoride salt bin on electrobath delivery of fluorinated salt.

Technical background:

At present, the mode that many electrolytic aluminium factories are artificial to the general employing of charging fluoride salt bin on electrobath or overhead traveling crane is reinforced.Adopt hand-fed to need a large amount of manpowers, the electrolyzer danger coefficient is bigger up and down, work loaded down with trivial details, waste time and energy; Adopt the reinforced workload that has increased overhead traveling crane of overhead traveling crane, and still need 2-3 people reinforced in the feeding device of overhead traveling crane lifting on the ground.Such feed way is waste of manpower and man-hour both, increases the overhead traveling crane workload again, causes overhead traveling crane shortening in work-ing life, maintenance load to increase, and causes the use of overhead traveling crane and maintenance cost to increase indirectly.

It according to the China national number of patent application that retrieves 200510047746.9 document, adopting automatically to the electrolyzer charging fluoride salt bin at present, the mode of control delivery system is: fluoride salt is by fluoride salt feed bin, pressurized air treatment system, concentrated phase conveying system, be transported in the potroom in the fluoride salt bin on the electrolyzer by the concentrated phase transfer line, this process is switched intake chute and order of addition(of ingredients) by minute batcher and by-pass valve control.Above-mentioned automatic transport mode is controlled complexity, and the transport pipe on every electrolyzer all must be equipped with a squeeze valve, a pressure unit is realized the defeated material of control automatically.Wherein per three electrolyzers are one group, in the time of for certain group electrolyzer dnockout, also need control the fluoride salt material and not carry to next group electrolyzer, so need to play the effect of blocking with a by-pass valve control on main line, promptly every group of electrolyzer must be equipped with a squeeze valve again.

In sum, the shortcoming of existing automatic conveying system has following several respects:

1, the position, reference mark is more automatically, needs more electric controling element, causes the Controlling System complex operation;

2, because controlling elements quantity is many, the automatic control number of cables also increases thereupon and walks the staggered complexity of circuit, and laying work is loaded down with trivial details;

3, after system's operation, because concentrated phase dnockout gaseous tension is very high, cause the squeeze valve diaphragm to damage easily, need often to change, maintenance service is loaded down with trivial details.

The high frequency of maintenance that the sequence of control of the control cable of the controlling elements of multiple spot position, big quantity, complexity and high pressure produce certainly will cause cost of investment and running cost high especially, about nearly ten million yuan of the cost of a whole set of automatic conveying system.Owing to involve great expense, many aluminium manufacturers abandon automatic conveying system and adopt manually or overhead traveling crane adds fluoride salt to electrolyzer, and time-consuming taking a lot of work made troubles to production.

The utility model content:

The utility model is at the problem that above-mentioned known technology exists, and provides a kind of less investment, easy-to-operate, control simply to the automatic conveying device of charging fluoride salt bin on electrobath.

Implement the technical solution of the utility model as shown in Figure 1: by fluoride salt feed bin 1, sending jar 3 by chute and transport pipe with concentrated phase is connected, concentrated phase sends jar 3 and connects with at least 2 discharging trip valves 6 by concentrated phase transfer lime 4, last end carries swollen hopper 16 to be connected with concentrated phase, each discharging trip valve 6 carries the lower end of swollen hopper 16 to link to each other respectively with above the wall hopper 8 with terminal concentrated phase, the end opening of wall hopper 8 connects a chute 9, and chute 9 exit end are connected with fluoride salt bin 11 on the electrolyzer 12.

An air exhausting device 7 is arranged above the described wall hopper 8, and its mode can be self filtering type air draft, connects to purify smoke pipe realization air draft, also can be communicated with the chute epicoele and realize air-exhausting function, and an insulation joint 13 is equipped with in 8 times outlets of wall hopper.

The entrance end position of described chute 9 is higher than chute 9 exit end.The air feed source of chute 9 can be super concentrated phase air feed system, also can be the independent air feed system of being furnished with blower fan.Super concentrated phase air feed system is applicable to new factory building, and air feed system is applicable to transform and uses separately.

Described discharging trip valve 6 can be the eddy flow blanking device, also can be existing valve or the valve combination that is applicable to that powder is air conveying.

Fluoride salt is from fluoride salt feed bin 1, enter the concentrated phase conveying system of forming by pressurized air treatment system 2, concentrated phase transmission jar 3, concentrated phase transfer lime 4, first the discharging trip valve 6 that is transported in the potroom 5 by concentrated phase transfer lime 4 reaches in the wall hopper 8 that plays material transfer effect that is connected with it, air exhausting device 7 is housed on the wall hopper 8, after first wall hopper 8 was filled, fluoride salt was carried to next discharging trip valve 6 and the wall hopper that is connected 8.Peng's hopper 16 that fluoride salt is delivered to least significant end enters wall hopper 8 and when it was filled, concentrated phase conveying system was closed.

Above-mentioned each wall hopper 8 lower end of filling fluoride salt are connected with chute 9, and chute 9 links with fluoride salt bin 11 on the electrolyzer 12.By above-mentioned utility model method and device, fluoride salt finally is transported in the fluoride salt bin 11 of electrolyzer 12.

The carrying method that the utility model is set forth in two sub-sections, first part adopts concentrated phase conveying system that the fluoride salt powder in the fluoride salt feed bin 1 is transported in the wall hopper 8, and second part adopts the chute delivery system that the fluoride salt powder in the wall hopper 8 is transported to fluoride salt bin on electrobath.

When in wall hopper 8, failing material, open concentrated phase and carry automatic control system, Controlling System can send concentrated phase the feed valve of jar 3 earlier and open, allow fluoride salt powder in the fluoride salt feed bin 1 be full of concentrated phase and send jars 3, close feed valve then, open the charging valve on the concentrated phase transmission jar 3, the pressurized air that compressed air treatment system 2 was handled promotes the fluoride salt powder and is fed forward in concentrated phase transfer lime 4, the discharging trip valve 6 that be installed on the wall hopper 8 this moment all is in opened condition, the fluoride salt powder is in concentrated phase transfer lime 4 is transported to first wall hopper 8, air exhausting device 7 on the wall hopper 8 is got rid of air unnecessary in the hopper, when the first wall hopper 8 is full of the fluoride salt powder, air pressure in the hopper can raise, discharging trip valve 6 cuts out automatically, the fluoride salt powder begins to enter in the next wall hopper 8, by that analogy, the fluoride salt powder will be full of each successively, when terminal wall hopper 8 also is filled, being installed in stuff level switch 15 on the terminal wall hopper 8 sends and feeds back signal to concentrated phase and carry automatic control system, Controlling System can be closed the charging valve on the concentrated phase transmission jar 3 automatically, stop to carry, finished feed this moment wall hopper 8.

The fluoride salt powder to be transported to fluoride salt bin on electrobath 11 by wall hopper 8, need to give chute 9 air feeds by chute air feed mouth 10, air feed is divided into two kinds of forms, first kind for to carry out air feed by super concentrated phase air feed system, when the super concentrated phase conveying system of each startup is carried aluminum oxide to electrolyzer, its air feed system is given fluoride salt transporting chute 9 air feeds by chute air feed mouth 10, and the fluoride salt powder is full of fluoride salt bin 11 automatically through chute 9; Second kind for being furnished with the independent air feed system of blower fan, the fluoride salt powder to be transported to fluoride salt bin on electrobath 11 by wall hopper 8, the blower fan that needs to open independent air feed system realizes carrying for chute 9 air feeds by chute air feed mouth 10, determines to open the number of times of blower fan and the time of each run according to the consumption of fluoride salt.

Advantage of the present utility model and beneficial effect are:

1, do not need more electric controling element, the automatic control number of cables is also few, and system's control is simple, and cost of investment is lower;

2, because controlling elements quantity is few, construction, operation, maintenance are easily;

3, in the running maintenance process, only need make regular check on the component of changing or repair the discharging trip valve and get final product, so running cost is also lower;

4, producer can determine the volume of wall hopper according to molecular ratio in the electrolyzer and dnockout number of times, and the wall hopper is whenever made a defective material and just can be used a few days like this, convenient production.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of the utility model embodiment;

Fig. 3 is the structural representation of eddy flow blanking device of the present utility model.

Among the figure: 1 fluoride salt feed bin, 2 pressurized air treatment systems, 3 concentrated phases send jar, 4 concentrated phase transfer limes, 5 potrooms, 6 discharging trip valves, 7 air exhausting devices, 8 wall hoppers, 9 chutes, 10 chute air feed mouths, 11 fluoride salt bins, 12 electrolyzers, 13 insulation joints, 14 lotus root connected devices, 15 stuff level switch, 16 swollen hoppers, 17 eddy flow blanking devices, 18 blanking device bodies, 19 leather bags, 20,21 opening for feeds, 22 discharge ports, 23 flanges, 24 valve plates.

Embodiment:

2 with accompanying drawing 3 the utility model embodiments are in conjunction with the accompanying drawings: fluoride salt feed bin 1 sends jars 3 by chute and transport pipe and concentrated phase and links to each other, concentrated phase sends jar 3 times outlets and takes series system to be connected by concentrated phase transfer lime 4 with each eddy flow blanking device 17, at last carry swollen hopper 16 to be connected with a terminal concentrated phase, each eddy flow blanking device 17 carries swollen hopper 16 lower ends to link to each other with a wall hopper 8 respectively with terminal concentrated phase, and wall hopper 8 outlet at bottoms all are connected with fluoride salt bin 11 on the electrolyzer 12 by the chute 9 of an inclination.Be equipped with an insulation joint 13 between the chute 9 of wall hopper 8 outlet at bottoms and inclination, not only play the effect of material pipe but also play insulating effect.

Above-mentioned eddy flow blanking device 17, its formation comprises a blanking device body 18, an axle 20 is equipped with in the position, axis in blanking device body 18, the lower end of axle 20 connects a valve plate 24, a leather bag 19 is equipped with in blanking device body 18 upper ends, and an opening for feed 21 and discharge port 22 are arranged respectively on blanking device body 18 sidewalls.

Shown in accompanying drawing 2 and accompanying drawing 3, fluoride salt feed bin 1 sends jar 3 by chute and transport pipe with concentrated phase and is connected, and concentrated phase sends jar 3 and utilizes high pressure gas that the fluoride salt powder is transported in the potroom 5 by concentrated phase transfer lime 4.Wherein concentrated phase transfer lime 4 sends between the jar 3 with concentrated phase and all is connected with flange bolt.Concentrated phase transfer lime 4 enters potroom 5 back lateral transfer, enter the eddy flow blanking device 17 on the wall hopper 8, eddy flow blanking device 17 is connected with bolt by flange 23 with wall hopper 8, the fluoride salt powder enters in the blanking device body 18 from the opening for feed 21 of eddy flow blanking device 17, valve plate 24 flattens leather bag 19 because of deadweight with axle 20, the fluoride salt powder is full of blanking device body 18 backs and enters wall hopper 8 by valve plate 24, after the material in the wall hopper 8 is full of, pressure in the blanking device body 18 increases, leather bag 19 zone of swelling moving axis 20 and valve plate 24 move up,

valve plate

24 and 18 sealings of blanking device body, the fluoride salt powder is carried to next eddy flow blanking device 17 by discharge port 22, the process that reaches as a same reason is transported to terminal concentrated phase to material by concentrated phase transfer lime 4 always and carries swollen hopper 16, and this moment, all wall hoppers 8 all were full of the fluoride salt powder.When concentrated phase carried terminal wall hopper 8 also to be full of the fluoride salt powder, stuff level switch 15 meeting feedback signals were equipped with at wall hopper top, and whole concentrated phase course of conveying is finished.Because dense phase conveying pressure is higher, the air exhausting device 7 on the wall hopper 8 emits the excess pressure in the wall hopper 8 in course of conveying.The concentrated phase transfer lime 4 usefulness lotus root connected devices 14 of potroom 5 inside connect by threaded stud and nut.

Insulation joint 13 all is equipped with in each wall hopper 8 bottom, and it not only plays the effect of material pipe but also plays insulating effect.The chute 9 that insulation joint 13 lower ends are connected install is transported to the fluoride salt powder in the fluoride salt bin 11 on the electrolyzer 12 to chute 9 air feeds by super concentrated phase air feed pipe.Chute 9 entrance location that tilt to install are higher than the outlet position.The concrete angle of inclination of the chute of tilt installing 9 is by the inlet height decision of fluoride salt bin 11 on the volume of wall hopper 8 and level altitude and the electrolyzer 12.Like this from fluoride salt feed bin 1 to fluoride salt bin on electrobath 11, the pucker ﹠ bloat of the leather bag 19 by eddy flow blanking device 17, and stuff level switch 15 feedback signals in the terminal wall hopper 8 stop the concentrated phase dnockout, the chute 9 that tilts to install is fluoride salt bin 11 delivery of fluorinated salt on groove again, have finished the purpose to the self-feeding of electrolyzer fluoride salt bin.

Claims

1, charging fluoride salt bin on electrobath device, by the fluoride salt feed bin, sending jar by chute and transport pipe with concentrated phase is connected, it is characterized in that concentrated phase sends jar and connects with at least 2 discharging trip valves by the concentrated phase transport pipe, last end carries swollen hopper to be connected with concentrated phase, and each discharging trip valve carries the lower end of swollen hopper to link to each other respectively with above the wall hopper with terminal concentrated phase; The end opening of wall hopper connects a chute, and the chute exit end is connected with fluoride salt bin on the electrolyzer.

2, according to the described charging fluoride salt bin on electrobath device of claim 1, it is characterized in that having above the wall hopper wall hopper air exhausting device, its mode can be self filtering type air draft, connect and purify smoke pipe realization air draft, also can be communicated with the chute epicoele and realize air-exhausting function, wall hopper outlet down is equipped with an insulation joint.

3, can adopt the eddy flow blanking device according to the described discharging trip valve of claim 1, it is characterized in that the eddy flow blanking device has a casing, an axle is equipped with in the position, axis in casing, the lower end of axle connects a valve plate, casing is equipped with a leather bag on the upper end, and the wall box interposition is equipped with an opening for feed and a discharge port.