CN2273312Y

CN2273312Y - Self-cooling distiller for calomel

Info

Publication number: CN2273312Y
Application number: CN 96202416
Authority: CN
Inventors: 张觉民
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-01-15
Filing date: 1996-01-15
Publication date: 1998-01-28
Anticipated expiration: 2006-01-15

Abstract

The utility model relates to a self-cooling distiller for calomel, belonging to a small device for selecting vein gold mercury recovery in the folk. The utility model is arranged in a complete casing body, which is composed of a condensing zone, a heating zone, and a power control zone. The amalgam which contains gold is heated and forms mercury vapor, and then the mercury vapor is cooled into liquid after entering the condensing zone. The collected liquid mercury is used. The recovery rate of the mercury is larger than 99%, and the obtained mercury content of a sponge gold is less than one in thousand. The utility model has the advantages of small size, light weight, less power consumption, low cost, simple operation, and high safety. The utility model is the most suitable for selecting gold in the folk. The utility model effectively prevents the mercury from polluting environment, prevents mercurial poisoning of workers from happening, immediately saves the capital, and has wide market.

Description

Self-cooled calomel distiller

The utility model belongs to the metallurgical mercury recovery system of gold and silver, a kind of self-cooled calomel distiller.

Mostly the calomel distillation plant that the gold of goldfield choosing at present uses is old-fashioned main equipment, be not suitable for choosing gold among the people and use, the roasting calomel methods of open type that adopt among the people are placed on the iron container containing gold amalgam exactly, heating makes mercury fly to reach to contain gold amalgam demercuration purpose, obtains the sponge gold and is convenient to sell or refining.This method had both been lost expensive production auxiliary materials mercury, caused the pollution of mercury to atmospheric environment again, also made the operator cause mercury poisoning.Containing the gold amalgam main component is AuHg2, it is 310 ℃ of violent decomposition of beginning, 357C is very approaching with the mercury vapor temperature, the roasting calomel heating of open type is too fast, decompose with vaporization and almost take place simultaneously, cause calomel boiling splash, the golden particulate that splash is come out can't be collected, this loss is generally 1 ‰-5 ‰, and is more sometimes.Patent documentation records sealed gold metallurgy crucible, and (the ZL patent No.: technical scheme 94237660.9), this scheme have the inherent defect of making material and project organization thereof.Its lid heat radiation is bad, can't guarantee mercuryvapour condensation as early as possible, and it deposits the mercury position does not have the mercury of going out mouth, is difficult to the not volatilization once more of control mercury.Its venting hole is in the side of lid, and in the vertex of a cone central authorities of lid, equality of temperature mercuryvapour proportion is not much larger than same warm air, so air emptying entirely.The thickness of the interior outer bottom of partition wall is not both the key that guarantees to obtain differing temps in the crucible, obtain big temperature head, two place's base thickness degree difference sizes must strengthen, thickness difference strengthens, ununiformity strengthens during heating, be easy to cause the bottom cracking, this is sealed gold metallurgy crucible principle of design and the intrinsic contradictions of using reality, can't overcome.In crucible, have only partition wall to cut apart calomel and liquid mercury, the conduction heat convection heat of heating part during work, radiations heat energy affects condensed liquid mercury at any time, the feature of liquid mercury more than room temperature, every rising certain temperature, its volatilization is multiplied.So reclaiming, this crucible mercury guarantees that not can only improve original situation to a certain extent, effect is not remarkable.

The purpose of this utility model just is to design that a kind of cost is low, efficient is high, and effective mercury retrieving arrangement reclaims contained about 67% mercury in the calomel, and putting into production reaches the purpose of economizing on the use of funds again.Simultaneously prevent that effectively heavy metal Hg to air environmental pollution, preventing personal mercury poisoning effectively, improve to a certain extent and select gold recovery.

The utility model is called self-cooled, more specifically say it is naturally cooling mode by air heat radiation definitely, concrete technical scheme is as follows: a kind of self-cooled calomel distiller is the device of the compactness of branchs top condensing zone, heating zone, middle part, power supply control region, bottom composition in the complete housing with loam cake, lower bottom cover.The top condensing zone is by housing top, slightly by the central authorities of tapering by loam cake, sealing-ring, the median septum of exhaust spiral tube, go out the mercury mouth and form.The heating zone, middle part is by being provided with adiabatic sealing asbestos packing Bolt Connection between its upper edge and the median septum by heating chamber, heating chamber insulation cover, heating chamber bottom central authorities are welded with nut, be connected to and connect the heat conduction screw rod respectively with mica electric heating piece, pressing plate, thermal insulation layer, the series connection of thermal insulation layer supporting plate, fix by fitting nut respectively, constitute the heating zone, middle part.Power supply control region, bottom is by connecting the heat conduction screw rod tail with the fixing thermostat of nut, and the controlling timer, power-line terminal, the pilot lamp composition that are separately fixed at lower housing portion.Lead by the cover porcelain tube is connected into complete electric widely different road to them with the mica electric heating piece.Lower bottom cover is withheld in lower housing portion and is constituted a complete device, but bottom demolition easy access is adjusted.

The utility model is compared with the calomel distillation plant of the regular Jin Chang of choosing, have in light weight, volume is little, simple to operate, safe and reliable, cost is low, little power consumption, result of use are good, can replace main equipment and be fit to choosing gold among the people use, the mercury rate of recovery is not less than 99%, the sponge gold mercury content that produces is below 1%, gold loss particulate has not improved to a certain extent and has selected gold recovery again.The utility model is overcoming the deficiencies in the prior art, forms the characteristics of oneself:

1, the insulation thermal insulation system of forming by thermal insulation layer, heat tracing lid, adiabatic sealing asbestos packing, the heat of having stopped the heating part flows to condensing zone by conduction, convection current, radiation mode, thereby guaranteed that effectively heating chamber has sufficient temp to make the mercury evaporation in the calomel clean, and saved the energy, making condensing zone have enough low temperature to impel the rapid cooling liquid of mercuryvapour again is liquid mercury, prevents to volatilize once more.

2, T type venting hole prevents that effectively liquid mercury from falling after rise into heating chamber on the heating chamber insulation cover, has little gradient to be convenient to liquid mercury on the caping and concentrates in the median septum groove.

3, case top lid has on the medium pore of tapering sufficiently long exhaust spiral tube is housed, can emptying gas, and to catch the mercuryvapour of escaping to overflow simultaneously, and fall after rise in the housing automatically, this is to reach the purpose of design key.

4, the median septum groove at the top condensing zone has out the mercury mouth, and the liquid mercury of condensation is with producing with flowing out by going out the mercury mouth, and the plastics tubing on being enclosed within out the mercury mouth flows in the container that is filled with water.The liquid mercury of condensation can not volatilize again, takes away many heats simultaneously, makes condensing zone remain low temperature, helps mercuryvapour and continues liquefaction.

5, housing, loam cake, exhaust spiral tube are the making of Bao Gang material, and good thermal diffusivity is arranged, and help mercuryvapour to be condensed into liquid mercury.

6, heating unit is taked the mica electric heating piece, and volume is little, and is in light weight, and the good insulation performance is arranged, and guaranteed electrical safety.

7, heating chamber is provided with the calomel box that a cover is contained calomel, is stamped production well on it, and this just conveniently picks and places, and contains corrosive impurity at calomel, exempts from corrosion at the bottom of making heating chamber, prolongs heating chamber work-ing life, also has equal heat effect in addition.The utility model integrates seven characteristics, has guaranteed the realization of purpose of design.

Description of drawings:

Fig. 1 is a self-cooled calomel distiller complete section front view;

Fig. 2 is a self-cooled calomel distiller vertical view;

Number in the figure is described as follows:

1---loam cake; 2---the loam cake sealing-ring; 3---housing; 4---the heating chamber insulation cover; 5---adiabatic sealing asbestos packing; 6---heating chamber; 7---the mica electric heating piece; 8---median septum; 9---go out the mercury mouth; 10---connect the heat conduction screw rod; 11---the electric heating piece pressing plate; 12---the thermal insulation layer supporting plate; 13---lower bottom cover; 14---fitting nut; 15---porcelain tube; 16---pilot lamp; 17---controlling timer; 18---thermostat; 19---power-line terminal; 20---the venting hole spiral tube; 21---thermal insulation layer; 22---the calomel box; 23---set screw nut at the bottom of the heating chamber; 24---T type venting hole; 25---venting hole; 26---bolt.

Be described in detail the utility model embodiment in conjunction with the accompanying drawings:

With reference to accompanying drawing 1, median septum (8) the menopause heat seal asbestos packing (5) at housing (3) middle part is connected by bolt (26) with heating chamber (6) upper edge, be placed with in the heating chamber and adorn the calomel box (22) that venting hole (26) is arranged that contains gold amalgam, cover the heating chamber insulation cover (4) of T type venting hole (24), by set screw nut at the bottom of the heating chamber (23), connect heat conduction screw rod (10), mica electric heating piece (7), electric heating piece pressing plate (11), fitting nut (14), thermal insulation layer (21), thermal insulation layer supporting plate (12), fitting nut (14) is formed the heating systems of the sealing of a complete insulation, has guaranteed that heat does not import condensing zone as far as possible into.After the energising, mercuryvapour is through calomel box venting hole, T type venting hole on the heating chamber insulation cover, enter the condensing zone that is stamped loam cake (1), be provided with sealing-ring (2) sealing between housing top and loam cake, because mercuryvapour proportion is far longer than the proportion of air under synthermal, air is discharged by the exhaust spiral tube (20) of the central authorities of the loam cake that tapering is arranged slightly, because the condensing zone temperature is well below the mercuryvapour temperature, the mercuryvapour cooling liquid falls after rise, again because of having inclined-plane, refrigerative liquid mercury to be concentrated in the groove of median septum above the heating chamber insulation cover slightly, through going out mercury mouth (9) and external plastic catheter imports in the container that is filled with water.Mercuryvapour produces, flows, cools off, is collected to reach and contains gold amalgam demercuration and mercury and reclaim purpose in this rounded system.Thermostat (18) is equipped with at connection heat conduction screw rod (10) afterbody in power supply control region, bottom, and is fixing by fitting nut (14).The lead series connection that is with porcelain tube (15) is fixed on power-line terminal (19), controlling timer (17), pilot lamp (16) and the thermostat of lower housing portion, complete electric loop of mica electric heating piece formation.Lower housing portion is withheld lower bottom cover (13) becomes complete calomel distillation plant.Being deflated spiral tube (20) seizure if any the mercuryvapour of escaping to overflow with air returns in the housing automatically.About temperature control, in guaranteeing the heating chamber useful space, all reach about 400 ℃, the heating chamber bottom temp generally is no more than 800 ℃.About material: the heating chamber insulation cover adds insulation material press forming with refractory materials.Thermal insulation layer adopts rock wool or aluminum silicate fiber.The loam cake sealing-ring adopts rubber-asbestos plate.When making this device, part and weld seam material every and that mercury or mercuryvapour directly contact must adopt iron and steel material quality.During the size design of heating chamber, should before the calomel box of placing an amount of calomel under the topic, make every effort to compact dimensions, can not arbitrarily strengthen, otherwise will influence this device work effect.

Claims

1, a kind of self-cooled calomel distiller is to have loam cake by one, divides the device of the compactness of top condensing zone, heating zone, middle part, power supply control region, bottom composition in the complete housing of lower bottom cover.It is characterized in that the top condensing zone by loam cake, sealing-ring, median septum, go out the mercury mouth and form; The heating zone, middle part is by heating chamber insulation cover, mica electric heating piece, pressing plate, thermal insulation layer, and the thermal insulation layer supporting plate constitutes; Electric heating control region, bottom is respectively equipped with thermostat, controlling timer, power-line terminal, pilot lamp

2, self-cooled calomel distiller according to claim 1 is characterized in that the condensing zone loam cake has tapering central authorities that the exhaust spiral tube is arranged slightly.

3, self-cooled calomel distiller according to claim 1, it is characterized in that being provided with between heating chamber and the median septum adiabatic sealing asbestos packing Bolt Connection, the heating chamber insulation cover, heating chamber bottom central authorities are welded with nut, be connected to the heat conduction screw rod respectively with mica electric heating piece, pressing plate, thermal insulation layer, the series connection of thermal insulation layer supporting plate, fix by fitting nut respectively.

4, self-cooled calomel distiller according to claim 1, it is characterized in that thermostat, controlling timer, power-line terminal, pilot lamp in the electric heating control region, bottom by the lead of cover porcelain tube them with the mica electric heating piece complete electric loop of connecting.