CN201006387Y

CN201006387Y - Dust removing plant for silver-based alloy melting furnace

Info

Publication number: CN201006387Y
Application number: CNU2006200365923U
Authority: CN
Inventors: 金红; 郑远达; 谭云飞; 张宏浪
Original assignee: Guilin Jinge Electrotechnical Electronic Material Science & Technology Co Ltd
Current assignee: Guilin Jinge Electrotechnical Electronic Material Science & Technology Co Ltd
Priority date: 2006-12-07
Filing date: 2006-12-07
Publication date: 2008-01-16
Anticipated expiration: 2016-12-07

Abstract

The utility model relates to a silver-based alloy melting furnace de-dust device, wherein an air tube on an air casing of the melting furnace is connected with a cooling deposit room, to be connected into a bag de-dust device which air tube is connected into a spray tube washer or a venture washer, the washer is connected with an exhauster, the cooling deposit room is a sealed space at least tens larger than the air tube, with a dust barrel at bottom. When dust hot airflow enters into the room, the flow speed is reduced seriously to deposit dust, and the heavy metal volatile is completely oxidized, the temperature is reduced to avoid damage descending filter bag and prolong service life. The bag de-dust device filters most dust in the airflow, the airflow is de-dust in wet type via the spray tube washer or the venture washer, while the de-dust rate can reach 99.9%. The utility model can combine the advantages of bag de-dust and atom de-dust, particularly to be used in silver-based alloy melting furnace with harmful heavy metal dust, while the dust is collected in the dust barrel or deposited into a water tank, to be treated further, without secondary pollution.

Description

Silver-base alloy melting furnace dust arrester

(1) technical field

The utility model relates to industrial dedusting equipment, is specially a kind of silver-base alloy melting furnace dust arrester.

(2) technical background

The now existing multiple cleaner that is used for the metal alloy smelting furnace is as fiber bag precipitator, water dust scrubber, wet method sulphur removing and dust removing device, pulse dust collector, electrostatic precipitator, Sinter-plate Filter, plasma deduster, dedusting filter bag, cyclone dust collectors or the like.But these cleaners mainly are to be applicable to iron and steel industry enterprise.In the silver-base alloy fusion process, produce a large amount of heavy metal volatile matters, as cadmium, silver, tin, zinc etc., quilt oxidation rapidly when the metallic of volatilization contacts with air, become cadmium oxide, tin oxide, zinc oxide etc., the graphite dusts that produce when metal oxide that these are harmful and melting etc. cause severe contamination to environment.But use any above-mentioned cleaner all can't collect the metal oxide of removing in the flue gas fully.

(3) utility model content

The purpose of this utility model is a kind of silver-base alloy melting furnace dust arrester of design, not only has sack cleaner, also has the shower type washer, and the toxic heavy metal dust that sack cleaner is not caught washes through water smoke, further purifies.

The purpose of this utility model is a kind of silver-base alloy melting furnace dust arrester of design, comprise fan housing and sack cleaner on the smelting furnace, the ajutage on fan housing top connects cooling-sedimentation chamber downside, the ajutage on top, cooling-sedimentation chamber inserts the sack cleaner downside, in the ajutage on sack cleaner top centrifugal blower is housed, the ajutage in blower fan downstream inserts the shower type washer, the shower type washer tracheae that runs in.

The cooling-sedimentation chamber is that its conical lower portion is connected to the control of dust tube than ajutage caliber big tens of times or bigger confined space.The dust-laden thermal current that fan housing is drawn from the smelting furnace top enters the cooling-sedimentation chamber through air supply duct, and because of ventilation section increases suddenly, air-flow velocity sharply descends, and its dust accumulation of taking is the big particle sedimentation, falls into the control of dust tube of its bottom.The unoxidized heavy metal volatile matter of the part that is contained in the cooling-sedimentation indoor air flow is by fully oxidation, and gas flow temperature descends simultaneously, and the air-flow of avoiding having high hot particle Mars damages filter bag when entering sack cleaner.

The air-flow that enters sack cleaner is through cloth bag, most of dust in the filtering air-flow.

The shower type washer comprises shower, pond, filter, water circulating pump, shower erects on the pond and connects with the pond, water pipe picks out the process filter to water circulating pump from the middle and lower part, pond, the outlet pipe of water circulating pump inserts the shower upper end, and tracheae runs on the pond.The discharge pipe of sack cleaner inserts the shower upper end.After the air-flow that contains micro-dust through sack cleaner entered shower, by the water smoke flushing that pumping line sprays, the dust in the air-flow was brought into the pond by current, and clean air-flow is discharged from the blast pipe in pond.Dust in the water precipitates pending in water tank, and the water in the water tank filters the back through filter and used by the water circulating pump pressurized circulation.

The advantage of this silver-base alloy melting furnace dust arrester is: 1, collection has the advantage of bag-type dust and water mist dust-removing, and the efficiency of dust collection height can reach 99.9%, is particularly suitable for producing the silver-base alloy melting furnace of toxic heavy metal dust; 2, increase has the cooling-sedimentation chamber before the sack cleaner, effectively reduces gas flow temperature, avoids the high temperature grit to damage filter bag, prolongs the service life of sack cleaner; 3, sack cleaner and the shower type washer dust of catching all is collected in the control of dust tube or is deposited in basin bottom, is convenient to further processing, can not cause secondary pollution.

(4) description of drawings

Fig. 1 is the structural representation of this silver-base alloy melting furnace dust arrester embodiment 1;

Fig. 2 is the structural representation of this silver-base alloy melting furnace dust arrester embodiment 2.

(5) specific embodiment

Embodiment 1

The structure of this silver-base alloy melting furnace dust arrester embodiment 1 as shown in Figure 1, fan housing 2 is arranged on the silver-base alloy melting furnace 1, the ajutage 3 on fan housing 2 tops connects cooling-sedimentation chamber 4 downsides, the ajutage on 4 tops, cooling-sedimentation chamber inserts sack cleaner 5 downsides, the ajutage on sack cleaner 5 tops inserts shower type washer 6, shower type washer 6 tracheae that runs in.

Cooling-sedimentation chamber 4 is that its conical lower portion is connected to control of dust tube 4-1 than ajutage 3 calibers big tens of times or bigger confined space.

Sack cleaner 5 is the blowback sack cleaner, several filter bags 5-2 opening upwards is suspended on deduster cavity top, in the bag bracing frame is arranged, the deduster conical lower portion is connected to deduster control of dust tube 5-1, dust remover roof is equipped with back blowing machine 5-4 and electric rotating machine 5-5, and the air outlet of back blowing machine 5-4 is relative with filter pocket mouths.Dust remover roof picks out ajutage, and centrifugal blower 5-3 is housed in the ajutage.After the dust-contained airflow of introducing from cooling-sedimentation chamber 4 enters sack cleaner 5 from the side, walk in filter bag 5-2 side and to enter filter bag 5-2, its contained dust overwhelming majority is blocked in outside the filter bag 5-2 by filter bag 5-2 fiber.Back blowing machine 5-4 regularly dries in filter bag 5-2, electric rotating machine 5-5 drives back blowing machine 5-4 rotation simultaneously, clear up each filter bag 5-2 successively, fall the control of dust tube 5-1 that enters the bottom so that the dust that adheres to is intercepted and captured on filter bag 5-2 surface, filter bag ash removal does not influence the ventilation and dust removal work of sack cleaner 5.

Shower type washer 6 comprises shower, pond 10, filter 9, water circulating pump 8, shower erects on pond 10, connects with the water storage in the

pond

10,10 middle and lower parts pick out through filter 9 to water circulating pump 8 water pipe from the pond, the outlet pipe of water circulating pump 8 inserts the shower upper end, and tracheae 7 runs on the pond 10.

Embodiment 2

The structure of this silver-base alloy melting furnace dust arrester embodiment 2 as shown in Figure 2, its fan housing 2,, cooling-sedimentation chamber 4, sack cleaner 5 structure identical with connection with embodiment 1, the ajutage on sack cleaner 5 tops inserts Venturi scrubber 6 ', the Venturi scrubber 6 ' tracheae 7 that runs in.Venturi scrubber 6 ' comprises Venturi tube, pond 10, filter 9, water circulating pump 8 and silencer 11, the literary composition craftsman manages and erects on pond 10, connects with water tank, 10 middle and lower parts pick out through filter 9 to water circulating pump 8 water pipe from the pond, the outlet pipe of water circulating pump 8 inserts the Venturi tube upper end, and tracheae 7 runs on the pond 10.When water during through the narrow neck of Venturi tube, because flow velocity is accelerated, pressure reduces, in the air-flow suction line of the ajutage that will be connected with pipe upper end in the civilian craftsman, so that the washing of water smoke is more effective.Noise when passing through the Venturi tube neck for reducing air-flow fixes a silencer 11 on blast pipe 7.

Claims

1. silver-base alloy melting furnace dust arrester, fan housing (2) is arranged on the silver-base alloy melting furnace (1), the ajutage (3) on fan housing (2) top inserts sack cleaner (5), and sack cleaner (5) conical lower portion is connected to deduster control of dust tube (5-1), it is characterized in that:

The ajutage (3) on described fan housing (2) top connects cooling-sedimentation chamber (4) downside earlier, the ajutage on top, cooling-sedimentation chamber (4) inserts sack cleaner (5) again, the ajutage on sack cleaner (5) top inserts shower type washer (6) or Venturi scrubber (6 '), shower type washer (6) or Venturi scrubber (the 6 ') tracheae (7) that runs in.

2. silver-base alloy melting furnace dust arrester according to claim 1 is characterized in that:

Described cooling-sedimentation chamber (4) is that its conical lower portion is connected to control of dust tube (4-1) than the big confined space of ajutage (3) caliber.

3. silver-base alloy melting furnace dust arrester according to claim 1 and 2 is characterized in that:

Described shower type washer (6) comprises shower, pond (10), filter (9), water circulating pump (8), shower erects in pond (10) and goes up, connects with the water storage in the pond (10), (10) middle and lower part picks out through filter (9) to water circulating pump (8) water pipe from the pond, the outlet pipe of water circulating pump (8) inserts the shower upper end, and tracheae (7) runs on pond (10).

4. silver-base alloy melting furnace dust arrester according to claim 1 and 2 is characterized in that:

Described Venturi scrubber (6 ') comprises Venturi tube, pond (10), filter (9), water circulating pump (8), Venturi tube is erected in pond (10) and is gone up, connects with the water storage in the pond (10), (10) middle and lower part picks out through filter (9) to water circulating pump (8) water pipe from the pond, the outlet pipe of water circulating pump (8) inserts the Venturi tube upper end, and tracheae (7) runs on pond (10).

5. silver-base alloy melting furnace dust arrester according to claim 4 is characterized in that:

Fix a silencer on the described pond (10) (11).