CN202747362U

CN202747362U - Incinerator for carbon-supported rare noble metal spent catalyst

Info

Publication number: CN202747362U
Application number: CN2012204271352U
Authority: CN
Inventors: 杨拥军; 雷婧; 雷涤尘; 叶咏祥; 杨静
Original assignee: CHENZHOU GAOXIN PLATINUM Co Ltd
Current assignee: CHENZHOU GAOXIN PLATINUM Co Ltd
Priority date: 2012-08-27
Filing date: 2012-08-27
Publication date: 2013-02-20
Anticipated expiration: 2022-08-27

Abstract

The utility model discloses an incinerator for a carbon-supported rare noble metal spent catalyst. The device is formed by sequential connection of a rare noble metal enrichment chamber, an incineration furnace body, a smoke buffer chamber and a tail gas absorption device. The device supplies power through negative pressure, an air flow enters the incineration furnace body from an air vent to allow the carbon-supported rare noble metal spent catalyst on a furnace bridge to be incinerated sufficiently, smoke enters the smoke buffer chamber along with the air flow, most of the buffered smoke returns to the incineration furnace body and enters the rare noble metal enrichment chamber through the furnace bridge together with ash, fume enters the tail gas absorption device through a pipeline, and washed gas can be exhausted directly. The device solves the problems that the smoke is lost due to rising in the incineration process of the carbon-supported rare noble metal spent catalyst, the fume pollutes an environment, the incineration air permeability is poor, the time is long, the labor condition is severe, and the carbon residue and the ash are more; the smoke in the fume is removed effectively; the recovery rate of rare noble metal is increased; and the purposes of circular resource utilization and environmental protection are achieved.

Description

Charcoal carries the incinerator of rare precious metal dead catalyst

Technical field

The utility model relates to the incinerator that a kind of charcoal carries the rare precious metal dead catalyst.

Background technology

The rare precious metal catalyst is widely used in the fields such as chemical industry, the energy, pharmaceuticals industry, material industry, PETROLEUM PROCESSING industry and environmental protection; play an important role; promotion chemical industry advances; but catalyst is lost activity by impurity contamination through active component after repeatedly applying mechanically, and becomes dead catalyst.Abandoning of a large amount of Industry Waste catalyst; be not only a kind of waste of resource; and also can cause to a certain degree pollution to environment; the annual dead catalyst of producing in the whole world is about 500-700Kt; no matter wherein account for larger ratio take active carbon as carrier, will consume a large amount of noble metals, non-ferrous metal and oxide thereof for producing these catalyst, be resource rational utilization; or environmental protection all has great importance to spent catalyst regeneration and recovery.

The rare precious metal key that the recovery charcoal carries in the rare precious metal dead catalyst is enrichment, and at present, most of practitioner's enrichment rare precious metals are charcoal to be carried the rare precious metal dead catalyst be placed directly on iron pan, metal bucket or the iron plate, lights active carbon spontaneous combustion or heating ashing.Although this enrichment method has original simple, small investment, is not subjected to production-scale restriction, but shortcomings such as existing in burning process flue dust dust collector, smoke pollution environment, burn that gas permeability is poor, the time long, working condition is abominable, carbon residue and ash content are many directly causes the precious and rare metals recovery rate low.Such as Chinese patent 91104385.3 and 201120101065.7 charcoal being carried the rare precious metal dead catalyst is placed in the custom-designed incinerator and burns enrichment, then collect to remain in and contain the rare precious metal ash in the stove, again rare precious metal separation and Extraction in the ash out, it is simple that it has an enrichment method, the advantage that the rate of recovery is high, but the incinerator of above-identified patent design is expensive, is only applicable to large batch of dead catalyst, invest greatlyr, promote relatively poor.Because it is in batches less that charcoal carries rare precious metal dead catalyst single, and the rare precious metal price fluctuation should not be assembled more greatly, so design a kind of small scale, incinerator simple and easy to control, high-efficiency environment friendly has larger advantage.

The utility model content

The utility model provide a kind of burn the time short, temperature is controlled, do not fly upward free of losses, ash content is few, burn the incinerator that charcoal thoroughly carries the rare precious metal dead catalyst.

Described charcoal carries the incinerator of rare precious metal dead catalyst, it is characterized in that: this device is connected in sequence by rare precious metal enrichment chamber, burning body of heater, flue dust surge chamber and device for absorbing tail gas;

Described charcoal carries the incinerator of rare precious metal dead catalyst, it is characterized in that, rare precious metal enrichment chamber is the stainless steel column barrel; The bottom can directly add outer fiery calcination like this, can conveniently obtain the rare precious metal ash of enrichment, and its top is provided with draw-in groove, directly is buckled in by snap ring and burns on the body of heater;

Described charcoal carries the incinerator of rare precious metal dead catalyst, it is characterized in that, the incinerator phosphor bodies is cylindrical, and the above is conical, and the grate below is provided with the little ventilating opening under oblique; Can be convenient to feed intake, observe the grate top and be provided with sealing door, there are three pin in the outside, body of heater middle part, is used for fixedly single unit system; Be convenient to loading and unloading, bottom of furnace body has draw-in groove, and the top has ring flange to connect the flue dust surge chamber;

Described charcoal carries the incinerator of rare precious metal dead catalyst, it is characterized in that, the flue dust surge chamber is by being small at both ends and big in the middle that cylinder, circular cone form; It is slack-off with the large speed of change of surge chamber area that air-flow is entered behind the surge chamber, realizes the effect of flue dust buffering sedimentation; Connect the cone of burning body of heater and directly extend to body of heater inside, the flue dust that contains rare precious metal is got back in the incinerator along cone after buffering in buffer, finally get back to enricher; Be convenient to connect, bottom and top all are connected with flange, and flue extends to the inner 5-15cm of flue dust surge chamber;

Described charcoal carries the incinerator of rare precious metal dead catalyst, it is characterized in that, fume collector wherein fills in the waste gas absorption liquid of 2/3 volume for cylinder or the cube of sealing; Because flue extends in the waste gas absorption liquid, there is the negative pressure access port upper end, can be convenient to change absorption liquid and collect the rare precious metal flue dust, and the flue dust absorption chamber is provided with bottom valve; Waste gas absorption liquid in this fume collector can carry component residual in the rare precious metal dead catalyst according to charcoal to be selected, can be hydrochloric acid, NaOH, organic reagent etc., reach the effect of the harmful substance that produces when absorbing the flue dust of failing to cushion and burning spent catalyst.

This utility model is applied to the rare precious metal that the enrichment charcoal carries the rare precious metal dead catalyst, not only can improve the rate of recovery of rare precious metal, and can effectively remove the flue dust in the flue gas, has reached the purpose of resource circulation utilization and environmental friendliness.

Description of drawings

Fig. 1It is the main TV structure schematic diagram of the utility model embodiment;

Among the figure: 1. rare precious metal enrichment chamber, 2. burn body of heater, 3. flue dust surge chamber, 4. fume collector, 5. draw-in groove and snap ring, 6. ventilating opening, 7. grate, 8. fire door, 9. ring flange, 10. flue, 11. tail gas absorption liquids, 12. negative pressure access ports, 13. bottom valves.

The specific embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model embodiment is further described.

Charcoal as shown in Figure 1 carries the incinerator of rare precious metal dead catalyst, is connected in sequence by rare precious metal enrichment chamber 1, burning body of heater 2, flue dust surge chamber 3, flue 10 and fume collector 4; Rare precious metal enrichment chamber 1 be connected body of heater 2 and be connected with snap ring 5 by draw-in groove, burn body of heater 2 and be connected with the flue dust surge chamber and connected by ring flange 9, flue dust surge chamber 3 is connected with flue and is connected by ring flange 9; Material drops into from fire door 8, this device provides power by the negative pressure system of negative pressure access port 12, air-flow enters through ventilating opening 6 and burns body of heater 2 and make charcoal on the grate 7 carry the rare precious metal dead catalyst fully to burn, flue dust enters flue dust surge chamber 3 with air-flow, gets back to again through the flue dust major part of buffering and burns body of heater and ash content enters rare precious metal enrichment chamber 1 through grate together; Flue gas enters device for absorbing tail gas 4 through flue 10, and the flue dust of failing to cushion and harmful flue gas are absorbed by tail gas absorption liquid 11, and fume collector 4 is emitted by bottom valve 13, the rare precious metal that can obtain to absorb after filtration, and the gas after the washing can be directly emptying.

Claims

1. charcoal carries the incinerator of rare precious metal dead catalyst, it is characterized in that: this device is connected in sequence by rare precious metal enrichment chamber (1), burning body of heater (2), flue dust surge chamber (3), flue (10) and device for absorbing tail gas (4).

2. charcoal according to claim 1 carries the incinerator of rare precious metal dead catalyst, it is characterized in that, rare precious metal enrichment chamber (1) is the stainless steel column barrel, and the top is provided with draw-in groove (5).

3. charcoal according to claim 1 carries the incinerator of rare precious metal dead catalyst, it is characterized in that, it is cylindrical burning body of heater (2) main body, cylinder-shaped body is provided with fire door (8), feet (14), ventilating opening (6) and grate (7), bottom is draw-in groove (5), top is conical, and the top is ring flange (9).

4. charcoal according to claim 1 carries the incinerator of rare precious metal dead catalyst, it is characterized in that, flue dust surge chamber (3) is that cylinder, two are that circular cone forms by the centre.

5. charcoal according to claim 1 carries the incinerator of rare precious metal dead catalyst, it is characterized in that fume collector (4) is the cylinder of sealing, pipe extends to inner 2/3 place by lid, and covered negative pressure access port (12), the bottom is connected to bottom valve (13).