CN203389493U

CN203389493U - Catalyst vacuum pumping device

Info

Publication number: CN203389493U
Application number: CN201320465545.0U
Authority: CN
Inventors: 李富勇; 冯斌; 肖军; 陈建平
Original assignee: Xinjiang Zhongtai Chemical Co Ltd
Current assignee: Xinjiang Huatai Heavy Chemical Co Ltd
Priority date: 2013-08-01
Filing date: 2013-08-01
Publication date: 2014-01-15
Anticipated expiration: 2023-08-01

Abstract

The utility model relates to a catalyst vacuum pumping device. The catalyst vacuum pumping device consists of a vacuum pump, and a tail gas absorption tower and a solid recovery device which are communicated with the vacuum pump; the vacuum pump is communicated with a calcium carbide method chloroethylene converter through a pipeline; a primary separator, a secondary separator, a dust collector and an air filter are arranged on the pipeline in sequence from the calcium carbide method chloroethylene converter to the vacuum pump; the discharge port of the device is communicated with the solid recovery device; the solid recovery device comprises a catalyst storage tank and a vibration screen arranged at the discharge port of the catalyst storage tank; the vibration screen is then communicated with a catalyst loading hopper and a catalyst ash collecting hopper; the dust outlet of the dust collector is communicated with the catalyst ash collecting hopper. According to the catalyst vacuum pumping device, the treated waste material is free of the generation of mercury-containing sludge and mercury-containing wastewater and the emission of mercury-containing substances which pollute the environment, so that the damage of mercury occupational diseases is reduced. During the running process, water is not contacted, thus vacuum air from the converter is dry air, no hydrochloric acid is generated, the equipment and pipelines cannot corrode, the equipment operation ratio is improved, and the maintenance cost is greatly reduced.

Description

Catalyst vacuum is taken out turning-up devices

Technical field

The utility model relates to a kind of waste gas, trash discharge treating apparatus, relates in particular to a kind of catalyst vacuum and takes out turning-up devices.

Background technology

In generated by polyvinyl chloride by calcium carbide resin production plant vinyl chloride unit, filling chlorinated mercury catalyst in converter, activity and resistance due to catalyst after converter operation a period of time increase, therefore need to catalyst be taken out and be turned over, taking out the vavuum pump using while turning over is water ring vacuum pump, use water ring vacuum pump to have following drawback: 1, because absorption in catalyst has HCI gas, HCI gas to enter to produce hydrochloric acid after water ring vacuum pump, e-quipment and pipe to be caused to heavy corrosion; 2, Water-ring vacuum pump fluid is water, certainly leads to a certain amount of mercury-containing waste water (approximately 2 tons/day), contaminated environment; 3, association produces a certain amount of mercury-containing sludge and mercurous refuse, contaminated environment, and mercurous refuse amount is about 32 tons/year.

Summary of the invention

The purpose of this utility model is to propose a kind of water that do not contact, and does not discharge the catalyst vacuum of mercurous refuse and takes out turning-up devices.

The purpose of this utility model is achieved in that it is by vavuum pump that catalyst vacuum is taken out turning-up devices, the tail gas absorber being connected with vavuum pump and solid-state retracting device form, vavuum pump and production of vinyl chloride by calcium carbide method converter pass through pipeline connection, on pipeline, by production of vinyl chloride by calcium carbide method converter to vavuum pump, be equiped with successively one, second-stage separator, deduster and air cleaner, its discharging opening is communicated with solid-state retracting device, solid-state retracting device comprises catalyst storage tank, and the vibratory sieve that is arranged on catalyst storage tank discharging opening place, after vibratory sieve, be communicated with catalyst loading hopper and catalyst ash collection bucket, the dust outlet of deduster is communicated with catalyst ash collection bucket.

The utlity model has following advantage: 1, without mercury-containing sludge and mercury-containing waste water, produce, do not discharge mercurous material contaminated environment; 2, personnel, without cleaning mercury-containing sludge and mercurous refuse, reduce mercury Occupational Disease Hazards; 3,, because this device does not contact water in running, therefore the vacuum gas coming from converter is that dry gas does not produce hydrochloric acid, so can not cause corrosion to equipment, pipeline, equipment operation ratio improves, maintenance cost will reduce greatly.

Accompanying drawing explanation: concrete structure of the present utility model is provided by following drawings and Examples:

Fig. 1 is that catalyst vacuum is taken out turning-up devices structural representation.

Legend: 1. primary separator, 2. second-stage separator, 3. deduster, 4. air cleaner, 5. vavuum pump, 6. tail gas absorber, 7. air-introduced machine, 8. catalyst storage tank, 9. vibratory sieve, 10. catalyst loading hopper, 11. catalyst ash collection buckets.

The specific embodiment:

The utility model is not subject to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.

Embodiment: as shown in Figure 1, it is by vavuum pump 5 that catalyst vacuum is taken out turning-up devices, the tail gas absorber 6 being connected with vavuum pump 5 and solid-state retracting device form.Vavuum pump 5 adopts Roots vaccum pump, itself and production of vinyl chloride by calcium carbide method converter pass through pipeline connection, on pipeline, by production of vinyl chloride by calcium carbide method converter to vavuum pump 5, be equiped with successively I and II separator 1,2, deduster 3 and air cleaner 4, wherein I and II separator 1,2 is gas-solid separator, and its discharging opening is communicated with solid-state retracting device.Solid-state retracting device comprises catalyst storage tank 8, and the vibratory sieve 9 that is arranged on catalyst storage tank 8 discharging opening places, the rear connection catalyst of vibratory sieve 9 loading hopper 10 and catalyst ash collection bucket 11.The dust outlet of deduster 3 is communicated with catalyst ash collection bucket 11.

The vacuum that produces 50Kpa during Roots vaccum pump 5 operation is connected to production of vinyl chloride by calcium carbide method converter place by pipeline and extracts catalyst, take out and in catalyst vacuum gas, contain a large amount of particle catalyst and dry air and dry HCI gas, taking out catalyst vacuum gas enters after primary separator 1, after separating most catalyst grains, enter again second-stage separator 2, enter the rear catalyst grains of second-stage separator 2 completely separated at this, primary separator 1 catalyst grains separated with second-stage separator 2 enters catalyst storage tank 8.Taking out after second-stage separator 2 only contained dry air, dry HCI gas and catalyst dust in catalyst vacuum gas, this part is taken out catalyst vacuum gas and enters the rear filtration catalyst of deduster 3 dust again, and the catalyst dust of being collected by deduster 3 enters catalyst ash collection bucket 11.Taking out after deduster 3 contained micro-catalyst dust and dry air and dry HCI gas in catalyst vacuum gas, for guaranteeing to take out in catalyst vacuum gas not containing catalyst dust, air cleaner 4 is set after deduster 3, taking out after air cleaner 4 only contained dry air and dry HCI gas and entered after vavuum pump 5 and discharge and enter tail gas absorber 6 in catalyst vacuum gas, through tail gas absorber 6, absorb and take out the very airborne HCI gas generation of catalyst hydrochloric acid, acid concentration in tail gas absorber 6 enters spent acid resolver while reaching 22%, the catalyst vacuum gas of taking out by tail gas absorber 6 is that pure air enters atmosphere.

Catalyst in catalyst storage tank 8 is after vibratory sieve 9 screenings, and catalyst grains enters catalyst loading hopper 10 and recharges converter, and the catalyst powder of screening enters the rear return-to-factory of catalyst ash collection bucket 11 packing.

Claims

1. a catalyst vacuum is taken out turning-up devices, it is characterized in that: it is by vavuum pump, the tail gas absorber being connected with vavuum pump and solid-state retracting device form, vavuum pump and production of vinyl chloride by calcium carbide method converter pass through pipeline connection, on pipeline, by production of vinyl chloride by calcium carbide method converter to vavuum pump, be equiped with successively one, second-stage separator, deduster and air cleaner, its discharging opening is communicated with solid-state retracting device, solid-state retracting device comprises catalyst storage tank, and the vibratory sieve that is arranged on catalyst storage tank discharging opening place, after vibratory sieve, be communicated with catalyst loading hopper and catalyst ash collection bucket, the dust outlet of deduster is communicated with catalyst ash collection bucket.