CN1059165A

CN1059165A - Secondary reformer gas station phenol water treatment technique and device

Info

Publication number: CN1059165A
Application number: CN91101925A
Authority: CN
Inventors: 陈绍维
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-04-01
Filing date: 1991-04-01
Publication date: 1992-03-04

Abstract

The invention belongs to environmental protection technical field.The phenol water air evaporation tower that utilizes particular design to make, the phenol water of secondary reformer gas station heating back is sprayed in tower, and contact with the generating furnace gasified required air that passes through tower, evaporate mixing, enter producer then and borrow the high temperature of stove internal combustion layer that phenol is decomposed, reach with the purpose that adopts the incinerator method to handle phenol water equally completely and protect environment; The method of handling phenol water with incinerator relatively has obvious energy-saving effect, device structure is simple, no pressurized vessel, only need common iron, invest lowly, need not advantages such as personal management's working cost is low.

Description

Secondary reformer gas station phenol water treatment technique and device

The invention belongs to environmental protection technical field, handle the technology and the device of bituminous coal phenol-containing sewage of producer gas station for burning method.

China's printing and dyeing and petrochemical industry all have the employing incinerator to dispose of sewage; Handle phenol-containing wastewater from the also many employing incinerators of secondary reformer gas station of external introduction in recent years.What domestic design was voluntarily adopted also has on the strange gasification test device of Inner Mongol first gas station of machine works and China Coal Research Institute Shandong.

The disadvantage that existing incinerator is handled phenol water is that fuel consumption is big, and this method is phenol water to be sprayed into phenol water with high-pressure pump the high-temp combustion of incinerator is indoor to decompose phenol; Must also burn till high about 850-900 ℃ superheated vapour to big water gaging simultaneously discharges with the flue gas that fuel burns till, though being provided with waste heat boiler, incinerator can reclaim physics heat, and latent heat that can not recycle-water steam, so the energy expenditure of phenol water disposal is very high, processing costs is also just very high.

The present invention is in order to solve above-mentioned technical shortcoming, following technical scheme is proposed, be characterized in that air required when producer gas generator is produced is come by house steward (1), before entering producer, adopt phenol water air evaporation tower (3) that phenol water is contacted with air at Ta Nei, the phenol water of heat is evaporated and enters zone of combustion (12) in the producer with air mixed through bellows (7), utilize the high temperature of zone of combustion that phenol is decomposed, thoroughly administer secondary reformer gas station phenol water.Must not aim at and decompose phenol creation hot conditions.The required heat energy of intensification that flashes to steam and air as for phenol water in phenol water air evaporation tower is to be provided by the phenol water after the heating; The temperature that phenol water raises be calculate according to the heat balance of injection flow rate, phenol water disposal amount, air capacity definite, generally at 65-80 ℃.The phenol water required heat energy that heats up is to be provided by the some of the original needed water vapor of producer gas generator gasification (water jacket and outer water supply steam by producer before the air admission producer directly add airborne) water vapor surface heaters (8) by means of phenol water air evaporation tower bottom, does not need to provide in addition thermal source.Condensed water behind the water vapor condensation is returned for uses such as producer water jackets.Therefore the present invention handle phenol water only need electrode compensation in tower body and pipeline because the incomplete small amount of thermal energy of insulation and decompose the required few heat of phenol itself (phenol only account for the phenol water yield 4 ‰).Therefore the energy-saving effect of this technology is remarkable.

Air is entered in the tower (3) by import (13) and is discharged by outlet (14) with the phenol water evaporation that sprays into and after mixing, and enters producer internal combustion layer (12) through bellows (7).

Phenol water is to add to replenish the phenol water that is evaporated in the tower by adding inlet (11), its add-on is exactly the phenol water disposal amount, be stored in the bottom of tower, borrow well heater (8) to be boosted (elevated pressure is decided by the pattern that has or not filler (4) and nozzle) with phenol water pump (10) in phenol water heating back, and in tower, evaporate by nozzle (5) sprinkling and the air that pipeline is delivered to top of tower.In order to satisfy the variation of producer production load, air capacity should be set on the blast main before tower regulate and measuring apparatus (2); The make up water quantity of steam should be set on the mixture pipe behind the tower to be regulated and temperature indicating device (6).On the preceding water vapor pipeline of well heater (8) quantity of steam that quantity of steam setting device (9) is used for regulating heater heats phenol water temp should be set.(the existing setting during (2) are designed with (6) gas station generally speaking).Phenol water air evaporation tower of the present invention (3) can be designed to an integral body, and air intlet (13) is above to be the evaporation part, below stores and the heating part for phenol water, also can be designed to two independently.The evaporation part can be designed to wooden grid or porcelain ring filler, also can be void tower.Phenol water is stored and the water vapor surface heater (8) of heating part can be designed to heating unit tubular type or board-like.The top of tower should be provided with explosion trap (15); Pipeline behind tower body and the tower and heating steam pipeline all should have good thermal insulation layer (16).

Advantage of the present invention is: 1. energy-saving effect is remarkable; 2. thoroughly administer the secondary reformer gas station and contain phenol water; 3. equipment does not simply have pressurized vessel only needs common iron easy to manufacture; 4. setup fee is low; 5. need not the personal management, safeguard that easy working cost is low.

The drawing explanation of Figure of description one:

(1) air main, (2) air capacity are regulated measuring apparatus, (3) phenol water air evaporation tower, (4) filler, (5) nozzle, (6) water vapor amount adjusting and temperature indicating device, (7) bellows, (8) water vapor surface heater, (9) water vapor quantity regulating device, (10) phenol water pump, (11) phenol water inlet, (12) producer zone of combustion, (13) air intlet, (14) phenol steam and air and are mixed gas outlet, (15) explosion trap, (16) thermal insulation layer.

Claims

1, a kind of secondary reformer gas station phenol water treatment technique is characterized in that the required air of producer gas generator gasification is regulated by air capacity by house steward [1] to enter phenol water air evaporation tower [3] air in tower with measuring apparatus [2] and contact with phenol water;

A. phenol water is sprayed by the nozzle [5] that water vapor surface heater [8] heating back is delivered to top of tower by phenol water pump [10] through pipeline in evaporator tower [3], and with flow to opposite air and be in contact with one another and evaporate the back and become phenol water vapor and air Mixture;

B. phenol water vapor and air Mixture are regulated by the water vapor amount and temperature indicating device [6] enters zone of combustion [12] in the producer through bellows [7], utilize the high temperature of zone of combustion that phenol is decomposed;

2, phenol water treatment technique according to claim 1 is characterized in that the phenol water temp must be heated to 60-80 ℃.

3, a kind of phenol water air evaporation tower, it is characterized in that forming by nozzle (5), the water vapor surface heater (8) of tower bottom, the filler (4) (when being provided with filler) on tower top, the phenol water pump (10) of evaporator tower (3), cat head, air intlet (13), phenol water inlet (11), phenol water vapor air Mixture outlet (14) are arranged on the body of the tower, air enters Ta Nei by the air intlet in the middle part of the tower and to up, the phenol that nozzle (5) sprays is gone under water to contact with each other and evaporate the mixing back and left away by exporting (14);

4, phenol water air evaporation tower according to claim 3 is characterized in that available wooden grid of inner-tower filling material (4) or porcelain ring make, and perhaps becomes void tower without filler, at this moment must select the good crucible type nozzle of atomizing for use.