阅读说明：本技术 一种含盐废液焚烧系统 (Salt-containing waste liquid incineration system ) 是由 王晓庆 李乐 徐炎华 于 2021-07-20 设计创作，主要内容包括：本发明公开了一种含盐废液焚烧系统,包括：废液储罐配伍输送系统,辅助燃料系统,液中焚烧系统,SNCR烟气脱硝系统,烟气急冷系统和烟气净化处理系统；辅助燃料系统与液中焚烧系统连接；烟气净化处理系统包括：文丘里洗涤塔,碱洗塔,碱液循环装置和引风排气系统；碱液循环装置的出液管与碱洗塔的进液管连接；碱洗塔的出液管与碱液循环装置的回液管连接。本发明提供的含盐废液焚烧系统,能够对多种废液进行自动化配伍,省时省力,快速得到满足热值要求的废液；而且该系统能够有效将含盐废液内的有害物质全面除去,同时焚烧过后的有害气体得到充分净化,避免了对环境造成污染,保证了人体健康。(The invention discloses a salt-containing waste liquid incineration system, which comprises: the system comprises a waste liquid storage tank compatibility conveying system, an auxiliary fuel system, a liquid incineration system, an SNCR (selective non catalytic reduction) flue gas denitration system, a flue gas quenching system and a flue gas purification treatment system; the auxiliary fuel system is connected with the liquid incineration system; the flue gas purification treatment system comprises: the system comprises a Venturi washing tower, an alkaline liquor circulating device and an induced air exhaust system; a liquid outlet pipe of the alkali liquor circulating device is connected with a liquid inlet pipe of the alkaline tower; the liquid outlet pipe of the alkaline tower is connected with the liquid return pipe of the alkaline liquor circulating device. The salt-containing waste liquid incineration system provided by the invention can be used for carrying out automatic compatibility on various waste liquids, is time-saving and labor-saving, and can be used for quickly obtaining the waste liquid meeting the heat value requirement; moreover, the system can effectively remove harmful substances in the salt-containing waste liquid comprehensively, and simultaneously, the burnt harmful gas is fully purified, so that the pollution to the environment is avoided, and the human health is ensured.)

1. The utility model provides a contain salt waste liquid system of burning which characterized in that includes: the system comprises a waste liquid storage tank compatibility conveying system, an auxiliary fuel system, a liquid incineration system, an SNCR (selective non catalytic reduction) flue gas denitration system, a flue gas quenching system and a flue gas purification treatment system; wherein:

the waste liquid storage tank is provided with a conveying system, a liquid incineration system, an SNCR flue gas denitration system, a flue gas quenching system and a flue gas purification treatment system which are connected in sequence;

the auxiliary fuel system is connected with the submerged incineration system;

the flue gas purification treatment system comprises: the system comprises a Venturi washing tower, an alkaline liquor circulating device and an induced air exhaust system; the venturi scrubber, the alkaline washing tower and the induced air exhaust system are sequentially connected; the liquid outlet pipe of the alkali liquor circulating device is connected with the liquid inlet pipe of the alkaline washing tower; and a liquid outlet pipe of the alkaline tower is connected with a liquid return pipe of the alkaline liquor circulating device.

2. The incineration system for waste liquid containing salt of claim 1, wherein the waste liquid storage tank compatible conveying system comprises: the device comprises a waste liquid tank, a waste liquid compatibility tank, a waste liquid conveying device, a waste liquid feeding device and a waste liquid feeding spray gun; the waste liquid tanks are arranged in plurality and are respectively connected with the waste liquid compatibility tank; the waste liquid mixing tank, the waste liquid conveying device, the waste liquid feeding device and the waste liquid feeding spray gun are sequentially connected; the waste liquid feeding spray gun is connected with a feeding hole of the liquid incineration system.

3. The incineration system for waste liquid containing salt according to claim 2, further comprising: a compressed air delivery device; and the compressed air conveying device is communicated with the waste liquid feeding spray gun.

4. The incineration system for waste liquid containing salt according to claim 1, further comprising: and the ammonia water conveying device is communicated with the SNCR flue gas denitration system.

5. The incineration system for waste liquid containing salt according to claim 1, characterized in that said caustic tower comprises a primary caustic tower and a secondary caustic tower.

6. The incineration system for waste liquid containing salt according to claim 1, further comprising: a wet electric dust removal device; the wet electric dust removal device is arranged between the alkaline tower and the induced air exhaust system.

7. The incineration system for waste liquid containing salt according to claim 1, further comprising: an activated carbon adsorption tower; the active carbon adsorption tower is arranged between the alkaline washing tower and the induced air exhaust system.

Technical Field

The invention relates to the technical field of industrial waste liquid treatment, in particular to a salt-containing waste liquid incineration system.

Background

In recent years, with the rapid development of industries such as coal chemical industry, oil refining, paper making and the like, a large amount of chemical salt-containing organic waste liquid is often generated in the production process of the chemical salt-containing organic waste liquid, the waste liquid contains a large amount of organic matters which cannot be biodegraded and high-concentration salt-containing organic waste liquid, and the organic salt-containing organic waste liquid is discharged into the nature, so that the environment is inevitably polluted, the ecological environment is damaged, the human health is damaged, and therefore the waste liquid must be reasonably and effectively treated, and the pollution of the waste liquid to the environment is reduced. However, when the waste liquid is treated, several waste liquids are usually required to be mixed and matched to obtain liquid meeting the heat value requirement, and then the liquid is sent to the incinerator for incineration.

Therefore how to provide a waste liquid and compatible convenient, simple structure, reasonable in design, operation convenient to use's salt waste liquid system of burning is the technical problem that technical staff in the field need solve urgently.

Disclosure of Invention

In view of the above, the invention provides a salt-containing waste liquid incineration system, which can carry out automatic compatibility on various waste liquids, is time-saving and labor-saving, and can quickly obtain the waste liquid meeting the heat value requirement; moreover, the system can effectively remove harmful substances in the salt-containing waste liquid comprehensively, and the harmful gas after incineration is fully purified, so that the pollution to the environment is avoided, and the human health is ensured.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a contain salt waste liquid system of burning which characterized in that includes: the system comprises a waste liquid storage tank compatibility conveying system, an auxiliary fuel system, a liquid incineration system, an SNCR (selective non catalytic reduction) flue gas denitration system, a flue gas quenching system and a flue gas purification treatment system; wherein:

the waste liquid storage tank is provided with a conveying system, a liquid incineration system, an SNCR flue gas denitration system, a flue gas quenching system and a flue gas purification treatment system which are connected in sequence;

the auxiliary fuel system is connected with the submerged incineration system;

the flue gas purification treatment system comprises: the system comprises a Venturi washing tower, an alkaline liquor circulating device and an induced air exhaust system; the venturi scrubber, the alkaline washing tower and the induced air exhaust system are sequentially connected; the liquid outlet pipe of the alkali liquor circulating device is connected with the liquid inlet pipe of the alkaline washing tower; and a liquid outlet pipe of the alkaline tower is connected with a liquid return pipe of the alkaline liquor circulating device.

Has the advantages that: by arranging the waste liquid storage tank compatibility conveying system, the quick and reasonable compatibility of various waste liquids is realized, the manual operation cost is saved, and the time and the labor are saved; and the mixed liquid can meet the requirement of incineration heat value, and the complete combustion and decomposition of the liquid are ensured. An SNCR flue gas denitration system is arranged, so that the flue gas is subjected to quick denitration treatment; a flue gas quenching system is arranged to rapidly cool the temperature of the flue gas; a flue gas purification treatment system is arranged, and flue gas discharged by a flue gas quenching system enters a Venturi scrubbing tower through a flue so as to realize flue gas dust removal; flue gas enters an alkaline washing tower through a flue, circulating alkaline liquor is introduced into the tower to be in circulating contact with the flue gas and washed, and residual harmful substances in the flue gas are continuously absorbed; and the flue gas treated by the alkaline tower is sent to a chimney through a flue of the flue gas purification treatment system by an induced draft fan and is discharged.

Preferably, in the above salt-containing waste liquid incineration system, the waste liquid storage tank compatible conveying system includes: the device comprises a waste liquid tank, a waste liquid compatibility tank, a waste liquid conveying device, a waste liquid feeding device and a waste liquid feeding spray gun; the waste liquid tanks are arranged in plurality and are respectively connected with the waste liquid compatibility tank; the waste liquid mixing tank, the waste liquid conveying device, the waste liquid feeding device and the waste liquid feeding spray gun are sequentially connected; the waste liquid feeding spray gun is connected with a feeding hole of the liquid incineration system.

Has the advantages that: the waste liquid storage tank compatibility conveying system is reasonable in design and simple in structure, the waste liquid is mixed through the waste liquid compatibility tank, the multiple waste liquids are quickly and reasonably compatible, the manual operation cost is saved, and time and labor are saved; and the mixed liquid can meet the requirement of incineration heat value, and the complete combustion and decomposition of the liquid are ensured. Realize the waste liquid atomizing through waste liquid feed arrangement and waste liquid feeding spray gun, then spout into the combustion furnace inside, accomplish the feeding operation of waste liquid.

Preferably, in the above salt-containing waste liquid incineration system, further comprising: a compressed air delivery device; and the compressed air conveying device is communicated with the waste liquid feeding spray gun.

The salt-containing waste liquid atomization device has the beneficial effects that compressed air is input into the waste liquid feeding spray gun, so that the atomization effect of the salt-containing waste liquid is greatly improved, and the comprehensive incineration treatment effect of the waste liquid is further ensured.

Preferably, in the above salt-containing waste liquid incineration system, further comprising: and the ammonia water conveying device is communicated with the SNCR flue gas denitration system.

Preferably, in the above salt-containing waste liquid incineration system, the caustic tower includes: a first-stage alkaline washing tower and a second-stage alkaline washing tower.

Has the advantages that: the two-stage alkali washing system is arranged, so that the adsorption area and the contact time of the alkali liquor and the flue gas are ensured, and the absorption and purification effects of the alkali liquor on the waste gas are greatly improved.

Preferably, in the above salt-containing waste liquid incineration system, further comprising: a wet electric dust removal device; the wet electric dust removal device is arranged between the alkaline tower and the induced air exhaust system.

Has the advantages that: can effectively carry out the atomizing spraying to the flue gas through setting up wet-type electrostatic precipitator, can also effectually carry out the electrostatic precipitation simultaneously and adsorb, guarantee that the smoke and dust in the flue gas can effectually be got rid of totally, then the discharge of rethread gas cleaning processing system has improved purification efficiency, has practiced thrift the cost.

Preferably, in the above salt-containing waste liquid incineration system, further comprising: an activated carbon adsorption tower; the active carbon adsorption tower is arranged between the alkaline washing tower and the induced air exhaust system.

Has the advantages that: through the arrangement of the activated carbon adsorption tower, the further adsorption and purification of the flue gas are realized, so that increasingly strict atmospheric emission standards are met.

Drawings

FIG. 1 is a system block diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention discloses a salt-containing waste liquid incineration system, which can be used for carrying out automatic compatibility on various waste liquids, is time-saving and labor-saving, and can be used for quickly obtaining the waste liquid meeting the heat value requirement; moreover, the system can effectively remove harmful substances in the salt-containing waste liquid comprehensively, and the harmful gas after incineration is fully purified, so that the pollution to the environment is avoided, and the human health is ensured.

Referring to fig. 1, a salt-containing waste liquid incineration system includes: the system comprises a waste liquid storage tank compatibility conveying system, an auxiliary fuel system, a liquid incineration system, an SNCR (selective non catalytic reduction) flue gas denitration system, a flue gas quenching system and a flue gas purification treatment system; wherein:

the waste liquid storage tank is provided with a conveying system, a liquid incineration system, an SNCR flue gas denitration system, a flue gas quenching system and a flue gas purification treatment system which are connected in sequence;

the auxiliary fuel system is connected with the liquid incineration system;

the flue gas purification treatment system comprises: the system comprises a Venturi washing tower, an alkaline liquor circulating device and an induced air exhaust system; the Venturi washing tower, the alkaline washing tower and the induced air exhaust system are sequentially connected; a liquid outlet pipe of the alkali liquor circulating device is connected with a liquid inlet pipe of the alkaline tower; the liquid outlet pipe of the alkaline tower is connected with the liquid return pipe of the alkaline liquor circulating device.

In order to further optimize above technical scheme, waste liquid storage tank compatibility conveying system includes: the device comprises a waste liquid tank, a waste liquid compatibility tank, a waste liquid conveying device, a waste liquid feeding device and a waste liquid feeding spray gun; a plurality of waste liquid tanks are arranged and are respectively connected with the waste liquid compatibility tank; the waste liquid mixing tank, the waste liquid conveying device, the waste liquid feeding device and the waste liquid feeding spray gun are sequentially connected; the waste liquid feeding spray gun is connected with a feeding hole of the liquid incineration system.

In order to further optimize above technical scheme, contain salt waste liquid system of burning still includes: a compressed air delivery device; the compressed air conveying device is communicated with the waste liquid feeding spray gun.

In order to further optimize above technical scheme, contain salt waste liquid system of burning still includes: and the ammonia water conveying device is communicated with the SNCR flue gas denitration system.

In order to further optimize the technical scheme, the alkaline washing tower comprises a first-stage alkaline washing tower and a second-stage alkaline washing tower.

In order to further optimize above technical scheme, contain salt waste liquid system of burning still includes: a wet electric dust removal device; the wet electric dust collector is arranged between the alkaline tower and the induced air exhaust system.

In order to further optimize above technical scheme, contain salt waste liquid system of burning still includes: an activated carbon adsorption tower; the active carbon adsorption tower is arranged between the alkaline washing tower and the induced air exhaust system.

According to the saliferous waste liquid incineration system, the waste liquid storage tank and the matching and conveying system are arranged, so that the multiple waste liquids can be quickly and reasonably matched, the manual operation cost is saved, and the time and the labor are saved; and the mixed liquid can meet the requirement of incineration heat value, and the complete combustion and decomposition of the liquid are ensured. An SNCR flue gas denitration system is arranged, so that the flue gas is subjected to quick denitration treatment; a flue gas quenching system is arranged to rapidly cool the temperature of the flue gas; a flue gas purification treatment system is arranged, and flue gas discharged by a flue gas quenching system enters a Venturi scrubbing tower through a flue so as to realize flue gas dust removal; the flue gas enters an alkaline washing tower through a flue, circulating alkaline liquor is introduced into the tower to be in circulating contact with the flue gas and washed, and residual harmful gas in the flue gas is continuously absorbed; the flue gas treated by the alkaline tower is sent into a chimney through a flue of a flue gas purification treatment system by an induced draft fan to be discharged, so that the discharged flue gas is ensured to meet the waste gas discharge standard, the pollution to the environment is avoided, the human health is ensured, and the device has great market popularization and application values.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.