CN2773635Y

CN2773635Y - Level indicator for aluminium cell

Info

Publication number: CN2773635Y
Application number: CN 200520089817
Authority: CN
Inventors: 何广波; 陈岫
Original assignee: SHENYANG DONGYOU INSTRUMENT COMPLETE EQUIPMENT CO Ltd
Current assignee: SHENYANG DONGYOU INSTRUMENT COMPLETE EQUIPMENT CO Ltd
Priority date: 2005-03-22
Filing date: 2005-03-22
Publication date: 2006-04-19
Anticipated expiration: 2015-03-22

Abstract

The utility model relates to a material level detecting instrument for aluminum electrolytic tanks, which is used in an ultra dense phase transport system of an aluminum electrolyzing factory and comprises diaphragms 210, springs 212, a fixed support 213 and a housing 214. The middle of the housing 214 is provided with the fixed support 213, and the springs 212 are arranged on lug bosses at both sides of the fixed support 213. Both sides of the supper part of the housing 214 are provided with the diaphragms 210. After a power source is switched on, the spring force bounce the diaphragms, the normal close node of a relay is closed and a red light of a material-empty early warning signal light lights, a signal is transmitted to a computer to prompt that materials need to be fed. When the material height reaches a set height, the normal open node of the relay is closed, a green light lights, and a signal is transmitted to the computer to prompt that a material box is filled with materials. A system can automatically fill materials according to the signal provided by the material level detecting instrument, the material quantity in the material box is kept at the set height, which saves manpower and material resources and ensures the stability and the reliability of the system operation.

Description

A kind of aluminum electrolyzing cell used charge level detector

Technical field

The utility model belongs to instrument and meter, is a kind of aluminum electrolyzing cell used charge level detector table of the super concentrated phase conveying system of electrolytic aluminium factory that is used for.

Background technology

At present, the super concentrated phase conveying system of China's electrolytic aluminium factory, be that materials such as aluminium oxide are delivered directly in the electrolytic tank feeding box, only the end in induction system is provided with level-sensing device, and constant-volume blanking device is constant-volume blanking regularly, can't detect the material stock present situation in the charging process, whether every electrolytic bath feed box in the total system is filled it up with, when to the hopper convey materials, the chute blockage in the course of conveying etc. are complete in manually finishing, and influence production process.

The utility model content

In order to solve the problem of above-mentioned existence, the purpose of this utility model is to provide a kind of aluminum electrolyzing cell used charge level detector.It is to convert mechanical shift to electric signal, adopts diaphragm pressure sensor signal feedback assembly, and the instruction material level is disclosed sky in a certain position, makes system reach automatic control and discloses sky, controls the purpose of convey materials automatically.

It comprises signal wire 201,204, sealing gasket 206, hold-down nut 207, stationary contact 208, moving contact 209, diaphragm 210, threaded pressure ring 211, spring 212, fixed bearing 213, housing 214, liner 215, housing 214 places 215 liang of upper lateral parts of liner, and a fixed bearing 213 is set in the middle part of liner 215, is equipped with spring 212 on fixed bearing 213 both sides boss, one stationary contact 208 is set in the centre of fixed bearing 213, one moving contact 209 is set above spring 212 and stationary contact 208, and moving contact 209 is provided with hold-down nut 207, is provided with diaphragm 210 between hold-down nut 207 and moving contact 209, diaphragm 210 both sides are installed between housing 214 and the sealing gasket 206, and sealing gasket 206 and housing 214 are provided with threaded pressure ring 211.Diaphragm 210 moves up and down, and dynamic and static contact separates, closure, and the signal of generation is transported to pilot lamp by relay.

Control circuit of the present utility model is made up of relay and pilot lamp, the signal wire 201 of charge level detector 17 outputs, 204 series connection, one resistance 20 is connected on the coil circuit of relay, two ends join with direct current source plate 21 both positive and negative polarities respectively, normal opened contact and normally closed contact are arranged on the relay, two kinds of contacts are connected with red, green pilot lamp 15,16 respectively, and the expression system need fill material or be full of material.

Principle of work of the present utility model: fill the material amount greater than spring 212 precompressions, by compacting hold-down nut 207, compacting diaphragm 210 moves downward, and makes that the slit reduces between moving contact 209 and the stationary contact 208, is zero until the slit, reach and set the material height, this moment, signal wire 201,204 outputed signal to relay, relay normally open node closure, have material signal lamp green light 16 bright, material has been filled in the computing machine demonstration.When material does not reach setting height, inventory is less than spring 212 precompressions, spring 212 pops up, with dynamic and static contact separately, promote diaphragm 210 and move upward signal wire 201,204 output signal to relay, the normally closed node closure of relay expects that empty early warning signal lamp red light 15 is bright, and computing machine shows need fill material.

The utility model has the advantages that the height that can detect material in real time, give the material of falling vacant, fill the material signal, system is controlled automatically according to the signal of charge level detector output, improved the level of robotization control, and can discontinuity work in 24 hours, the utility model volume is little, in light weight, highly sensitive, long service life is convenient to installation and maintenance.

Description of drawings

Fig. 1 is an assembling synoptic diagram of the present utility model;

Fig. 2 is a structural representation of the present utility model;

Fig. 3 is a connecting structure for electrical equipment synoptic diagram of the present utility model;

Figure repeat circuit contact 1,2,3,4,5,6,7,8,9,10,11,12,13,14, signal wire 201,204, thread-protected tube 202,205, nut 203, sealing gasket 206, hold-down nut 207, stationary contact 208, moving contact 209, diaphragm 210, threaded pressure ring 211, spring 212, fixed bearing 213, housing 214, liner 215, red light 15, green light 16, charge level detector 17, constant-volume blanking device 18, junction box 19, resistance 20, power panel 21, air switch 22,---red green pilot lamp contact, relay J ZC ₁-JZC ₆

Embodiment

Below in conjunction with accompanying drawing the utility model is described further:

As shown in Figure 1, charge level detector 17 is installed on the conduit of electrolytic tank inwall, its height sets up (height that highly promptly is detector) on their own according to customer requirements, and its signal wire 201,204 is connected to junction box 19 on the electrolytic tank along conduit output.The utility model can set up the voltage that charge level detector 17 quantity and power panel 21 are installed on their own according to the custom system needs.Adopt 6 charge level detectors in the present embodiment system, the voltage of power panel 21 adopts 24V, its circuit connecting relation as shown in Figure 3, the circuit of each charge level detector 17 is connected in parallel on the both positive and negative polarity of power panel 21, each organizes signal lamp respectively and be connected on often the opening of relay, the normally closed contact and on the power panel 21, and each group circuit is controlled separately.Its course of work such as Fig. 2, shown in Figure 3: air switch 22 closures, charge level detector 17 energized, material in the electrolytic tank does not reach material that the user sets when high, and inventory is less than spring 212 precompressions, spring 212 elongations, dynamic and static contact was opened in 209,208 minutes, promote diaphragm 210 and move upward, the signal of generation is exported to relay by signal wire 201,204, make the normally closed node closure of relay, expect that empty early warning signal lamp (red light 15) is bright, transmit signal and give computing machine that computer prompted lacks material.When the material in the electrolytic tank reaches material that the user sets when high, inventory is greater than spring 212 precompressions, and spring 212 compressions are suppressed diaphragm 210 and moved downward, make that the slit reduces between moving contact 209 and the stationary contact 208, until being zero, the signal of generation is exported to relay by signal wire 201,204, make relay normally open node closure, expect that empty early warning signal lamp (green light 16) is bright, transmit signal and give computing machine that the computer prompted material is full.System controls automatically according to the signal of charge level detector 17 outputs, keeps the inventory in the hopper to maintain on the height of setting.

Claims

1, a kind of aluminum electrolyzing cell used charge level detector, comprise housing (214), stationary contact (208), moving contact (209), it is characterized in that it also comprises diaphragm (210), spring (212), fixed bearing (213), housing (214) places liner (215) two upper lateral parts, in the middle part of liner (215) fixed bearing (213) is set, on the boss of fixed bearing (213) both sides, be equipped with spring (212), in the centre of fixed bearing (213) stationary contact (208) is set, at spring (212) and stationary contact (208) top one moving contact (209) is set, moving contact (209) is provided with hold-down nut (207), between hold-down nut (207) and moving contact (209), be provided with diaphragm (210), diaphragm (210) both sides are installed between housing (214) and the sealing gasket (206), and sealing gasket (206) and housing (214) are provided with threaded pressure ring (211), and diaphragm (210) moves up and down, moving, stationary contact separately, closure, the signal of generation is transported to pilot lamp by relay.

2, a kind of aluminum electrolyzing cell used charge level detector according to claim 1, it is characterized in that control circuit is made up of relay and pilot lamp, the signal wire (201) of charge level detector (17) output, (204) series connection one resistance (20) is connected on the coil circuit of relay, two ends join with direct current source plate (21) both positive and negative polarity respectively, normal opened contact and normally closed contact are arranged on the relay, two kinds of contacts are connected with red, green pilot lamp (15), (16) respectively, and the expression system need fill material or be full of material.

3, a kind of aluminum electrolyzing cell used charge level detector according to claim 1, the quantity that it is characterized in that charge level detector (17) is provided with several according to the custom system needs, its each circuit is connected in parallel, and the voltage of its power panel (21) is provided with according to the custom system needs.