CN1091394C

CN1091394C - Industrial microwave oven specially for fluid treatment

Info

Publication number: CN1091394C
Application number: CN99114774A
Authority: CN
Inventors: 徐有生
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-04-02
Filing date: 1999-04-02
Publication date: 2002-09-25
Anticipated expiration: 2019-04-02
Also published as: CN1231213A

Abstract

The present invention provides a special industrial microwave oven for fluid processing, which comprises a resonant cavity and closed shielding devices, wherein a microwave input port, a fluid inlet port, a fluid outlet port and a working door are arranged on the resonant cavity, the closed shielding devices are respectively arranged at the fluid inlet port and the fluid outlet port. The present invention is characterized in that a fluid circulator is arranged in the resonant cavity for specially supplying fluid to sufficiently generate materializing reaction in a microwave field, and devices, which are connected with the fluid inlet port and the fluid outlet port to ensure the continuous input and the continuous discharge of the fluid according to technical requirements, are respectively arranged at the upper part and the lower part of the resonant cavity, so that the fluid can continuously enters the microwave field and can be processed by the microwave processing characteristics of high speed, uniformity, energy saving, cleanness, etc. The microwave oven can be widely used for the processing of solid-liquid two-phase fluid or gas-solid-liquid three phase fluid, such as urban domestic wastewater, industrial wastewater, wet metallurgy, chemical lines, etc., and the processing of SO2, arsenic oxide, H2S and other gases.

Description

Industrial microwave oven specially for fluid treatment

The present invention relates to a kind of microwave energy and handle the industrial isolated plant of fluid, be realize microwave energy heating seven big advantages in hydrometallurgy, chemical industry and sanitary sewage and Industrial Wastewater Treatment etc. the fluid industrial microwave oven specially of commercial Application in the single-phase or multiphase flow.

Chemical reaction between material must could be realized under certain energy level, normal temperature and pressure, heat the pressurization its all show as certain energy level in essence, heat the pressurization promptly be a kind of energy supply.In hydrometallurgy and chemical industry, the fluid of certain a little ability realization response in autoclave (pressurization of heating), comprise and liquid--solid, liquid--gas two phase flow single-phase, Gu liquid--gas--three-phase stream, because of also pressurizeing under the situation of heating, other adds the chemical action of reagent again, and it is just higher to the requirement of equipment and materials physical and chemical performance, and the energy consumption in the course of reaction is strengthened, and operating cost increases.If will realize continuity production, then device structure is just complicated.

Because microwave has the selectivity heating to material, the chemical reaction of inhaling the ripple material had strong catalytic action, heated material had penetration, thermally equivalent in the heating object temperature rise is also shown very rapidly, so adopt the device of microwave energy supply to substitute autoclave, make and to depress the chemical reaction that to realize and in the microwave field under the normal pressure, be achieved and quicken heating to the chemical reaction energy supply; Carry out very slow reaction at normal temperatures and pressures, in case place microwave field, then chemical reaction velocity will at double or even tens of times improve; In addition, microwave has the rapid flocking settling of suspension particulate that makes in the muddy liquid and destroys colloid and the effect of sterilization is arranged, so the processing that microwave energy is used for city domestic sewage and industrial wastewater is significant.But existing industrial microwave device can only be used to handle the discontinuity heating of solid matter and liquid, the patent No. as inventor's application is 96207039.4, denomination of invention is the utility model patent of " the practical microwave energy of multifunctional industrial adds thermal reaction apparatus ", is mainly used in to handle various solid materials.For liquid also must be on the basis of foregoing invention the reactor of fluid continuous-flow heating.

The object of the present invention is to provide a kind of at hydrometallurgy, chemical industry, petrochemical industry (desulfurization and H ₂The O cracking), in fluid (containing two phase flow, the three-phase stream) industrial production of sewage disposal etc., realize the heating of microwave energy convection cell, make heated fluid produce the practical equipment of industry--the industrial microwave oven specially for fluid treatment of special physical reaction.

The present invention realizes by following technical proposal: it comprises the resonator which is provided with microwave input port and fluid import and export and cleaning door, and the sealing shielder of being located at fluid inlet place and exit respectively, it is characterized in that being provided with in the resonator and specialize in fluid fully produces physical reaction in microwave field fluid circulation device, the resonator upper and lower is respectively equipped with the device that the assurance fluid that is connected with the fluid import and export can feed continuously and discharge by technological requirement.

Fluid circulation device in the described resonator is the circulating pipe that vertically is provided with, and this circulating pipe is a spiral element, perhaps coiled pipe, the perhaps pipe of other shape.Its effect mainly contains two, one, make fluid can be in microwave field eddy flow so that evenly receive microwave energy; The 2nd, make fluid that enough flow processs be arranged in microwave field, guarantee that processed fluid can fully carry out physical reaction, because of in a single day processed material leaves microwave field, its physical reaction also just stops immediately.Micro-wave screening device and fluid sealer are all passed in the top and bottom of fluid circulation pipe, and give with the fluid of being located at the resonator upper and lower respectively, arranging device is connected.The effect of micro-wave screening device is to guarantee that microwave energy concentrates on the interior work of resonator and do not leak; The effect of fluid sealer is to make the fluid that feeds and the discharge resonator that do not bleed.The material of fluid circulation pipe can adopt polyfluortetraethylene pipe, perhaps quartz glass tube respectively according to the physical and chemical performance of processed fluid and the difference of treatment process requirement.

The fluid of being located at resonator top is given, arranging device is that liquid chamber is given in exhaust, its underpart is by fluid sealer and micro-wave screening device and resonator isolation, the middle part is communicated with fluid circulation pipe upper port by the fluid sealer, Gu so that pending liquid phase or liquid--two-phase flow fluid is fed in the microwave field by fluid circulation pipe upper port and handles, and make the gas that produces in the fluid circulation pipe or handled through microwave field when handling gaseous fluid separately also enter exhaust to give liquid chamber, separate with fluid liquid by fluid circulation pipe upper port; It is the sealing gas hood of a band cone that the top of liquid chamber is given in exhaust, and the gas hood top is communicated with blast pipe, and the gaseous products after microwave field is handled is discharged by blast pipe; Gas hood is provided with fluid intake, by feeding pipe, control valve and high-order liquid bath mutually in succession, so that pending fluid is provided.

The fluid of described resonator bottom is given, arranging device is that air chamber is given in discharge opeing, its top is by fluid sealer and micro-wave screening device and resonator isolation, the middle part is communicated with the fluid circulation infratubal port by the fluid sealer, Gu liquid state or liquid after microwave field is handled--and two-phase flow flows into air feed discharge opeing chamber by the circulating pipe lower port; Pending gaseous state carries out handling in the microwave field through herein; Bottom, air feed discharge opeing chamber is the airtight funnel of a taper, the pre-comb of fluid of hopper outlet tape splicing bottom valve, draining system's inner fluid when left alone without help machine of supply and demand long period or washing fluid circulating pipe uses, the pre-comb of fluid is provided with drain tube, Gu so that give liquid state or liquid in the air chamber with discharge opeing--outside the two-phase flow discharge system, control the liquid level that liquid in the liquid chamber is given in exhaust by the liquid level of this discharging tube in addition, fluid is full of the fluid circulation pipe during with assurance work; Funnel is provided with air supply pipe, the gaseous fluid that infeeds evenly is distributed into through funnel, because the depressurization that the exhaust on top is bled to liquid chamber, making the gaseous fluid that infeeds see through discharge opeing enters the participation chemical reaction through the fluid circulation infratubal port for the liquid layer of air chamber, solid and to discharge opeing give in the air chamber liquid--two-phase flow plays stirring action, make solid phase be difficult for depositing.

The present invention compared with prior art has following advantage and good effect: because such scheme, microwave energy is added pine for of paramount importance selectivity heating, the temperature rise of the catalytic action of chemical reaction and heated material is given full play in single-phase, two-phase and three-phase stream fluid industrial treatment very rapidly and to the penetration of heated material, and device structure is simple, technological process is simplified, and the capital construction floor space is little, invests little, pollution-free, energy-conservation, efficient, microwave energy is to H in addition ₂The cracking of S gas, SO ₂And the special role of the reduction of arsenic oxide gas and making can make the effect of the rapid aggegation of suspension particulate and sterilization in the liquid, so can be widely used in hydrometallurgy, chemical industry, petrochemical industry, city domestic sewage and Industrial Wastewater Treatment.

Fig. 1 is the present invention's microwave oven schematic diagram.

Below in conjunction with embodiment the present invention is described further.

Embodiment 1

Among the figure, 1 is high-order liquid bath; 2 are the feeding control valve; 3 are the feeding pipe, and its upper end links to each other with high-order liquid bath, and the lower end is connected for liquid chamber 30 with exhaust; 4 is helical ring liquid pipe upper port, is installed on the fluid upper sealing panel 35, and 5 are airtight and watertight padding; 6 is cylindrical hole on the resonator; 7 is last micro-wave screening plate, is located on the resonator on the cylindrical hole 6; 8 is spirality fluid circulating pipe; 9 is resonant cavity water-cooled overcoat, and 10 is the resonant cavity inwall, all makes with metal; 11 are resonator, rectangular; 12 resonator water collar lacing wires; 13 is microwave entrance, also claims feedback mouth or coupling aperture; 14 is fluid lower seal plate, is installed on the lower seal fixed head 15; 16 is the airtight and watertight padding of spiral circulation infratubal port; 17 is spiral circulation infratubal port, is installed on the fluid lower seal plate 15; 18 is air supply pipe; 19 is the air feed control valve; 20 for the pre-discharging tube of discharge opeing air supply chamber bottom; 21 is pre-tapping valve; 22 for the leakage fluid dram of discharge opeing air supply chamber bottom; 23 is the discharging tube control valve; 24 are the discharge opeing air supply chamber, and its top is connected with resonator; 25 are discharge opeing air supply chamber cone funnel; 26 is cylindrical hole under the resonator; 27 is solid-liquid separation tank; 28 is discharging tube, and 29 is last sealing and fixing plate; 30 give liquid chamber for exhaust, and its underpart is connected with resonator; 31 give liquid chamber cone seal cover for exhaust; 32 is the seal closure exhaust outlet; 33 is exhaust regulating valve; 34 is blast pipe; 35 is the fluid upper sealing panel; 36 is barricade under the resonator microwave.

Embodiment 2

When only handling gaseous fluid, close the control valve 2,18 among the figure, the configuration of perhaps cancelling high-order liquid bath 1, control valve 2, giving stream pipe 3, control valve 18, liquid discharge pipe 28, solid-liquid separation tank 27 can realize.

Claims

1, a kind of industrial microwave oven specially for fluid treatment, it comprises the resonator which is provided with microwave input port and fluid import and export and cleaning door, and the sealing shielder of being located at fluid inlet place and exit respectively, it is characterized in that being provided with in the resonator and specialize in fluid fully produces physical reaction in microwave field fluid circulation device, the resonator upper and lower is respectively equipped with the device that the assurance fluid that is connected with the fluid import and export can feed continuously and discharge by technological requirement.

2, micro-wave oven according to claim 1 is characterized in that the circulating pipe of fluid circulation device for vertically being provided with in the described resonator, and this circulating pipe is a spiral element, perhaps coiled pipe.

3, micro-wave oven according to claim 1, it is characterized in that the fluid of being located at resonator top is given, arranging device is that liquid chamber is given in exhaust, its underpart is by fluid sealer and micro-wave screening device and resonator isolation, and the middle part is communicated with fluid circulation pipe upper port by the fluid sealer.

4, micro-wave oven according to claim 1, the fluid that it is characterized in that described resonator bottom is given, arranging device is the discharge opeing air supply chamber, and its top is by fluid sealer and micro-wave screening device and resonator isolation, and the middle part is communicated with the fluid circulation infratubal port by the fluid sealer.

5, micro-wave oven according to claim 2 is characterized in that micro-wave screening device and fluid sealer are all passed in the top and bottom of described circulating pipe, and give with the fluid of being located at the resonator upper and lower respectively, arranging device is connected.

6, micro-wave oven according to claim 5 is characterized in that circulating pipe adopts polyfluortetraethylene pipe, perhaps quartz glass tube.