CN210088878U - Organic waste gas and organic waste liquid integrated treatment system suitable for combustion tower - Google Patents

Abstract

The utility model relates to an organic waste gas and organic waste liquid integrated treatment system suitable for a combustion tower. The system comprises a combustion tower and a waste liquid storage tank. The combustion tower includes three sets of gas collection chambers, a regenerator and a combustion chamber placed above the regenerator; one side of the combustion chamber is provided with a waste liquid atomizing nozzle, and the other side is provided with a high-temperature emergency discharge port. There is a burner; the bottom of each set of gas collection chambers is respectively provided with an exhaust gas inlet, a purge inlet, and a purified gas outlet; the burner is respectively provided with a gas-supporting gas inlet, a main fire pipeline, and an ignition pipeline; the main fire pipeline and the A gas inlet is connected after the ignition pipeline is paralleled; one side of the upper part of the waste liquid storage tank is provided with a waste liquid inlet, and the other side is connected with the waste liquid atomizing nozzle; one side of the lower part of the waste liquid storage tank is provided with a waste liquid storage tank The other side of the sewage outlet is connected to the waste liquid atomizing nozzle through a filter and a waste liquid delivery pump in turn; the top of the waste liquid storage tank is provided with a waste liquid storage tank vent valve and a condensate return port. The utility model has the advantages of simple structure, convenient installation and high safety.

Description

An integrated treatment system for organic waste gas and organic waste liquid suitable for combustion towers

technical field

The utility model relates to the field of environmental protection, in particular to an integrated treatment system for organic waste gas and organic waste liquid suitable for a combustion tower.

Background technique

The current environmental protection equipment has strong pertinence for the treatment of pollutants. The waste gas treatment equipment is dedicated to the treatment of waste gas, and the waste water treatment equipment is dedicated to the treatment of waste water. However, the pollutant emissions of many enterprises are not single. For example, the pollutants emitted by the unsaturated resin industry include organic waste liquid in addition to organic waste gas. Under normal circumstances, such enterprises will attribute organic waste liquid to industrial waste water, use sewage treatment equipment to purify organic waste liquid, and then discharge it up to the standard; use waste gas treatment equipment to treat organic waste gas, these methods lead to high cost of pollutant discharge treatment , large energy consumption, complex control system, large area and so on.

The combustion tower is one of the commonly used organic waste gas treatment equipment. Its principle is to provide a high temperature environment for the waste gas to cause the organic components in the waste gas to undergo oxidation reaction and become CO ₂ and H ₂ O, which are directly discharged to the atmosphere. There is no open flame and high exhaust gas purification efficiency. However, the current combustion tower cannot achieve the purpose of purifying organic waste liquid while treating organic waste gas.

Utility model content

The technical problem to be solved by the utility model is to provide an integrated treatment system for organic waste gas and organic waste liquid suitable for combustion towers with simple structure, convenient installation and high safety.

In order to solve the above problems, an integrated treatment system for organic waste gas and organic waste liquid suitable for a combustion tower according to the present invention is characterized in that: the system includes a combustion tower and a waste liquid storage tank; the combustion tower includes three A gas collection chamber, a regenerator placed on the gas collection chamber, and a combustion chamber placed above the regenerator; one side of the combustion chamber is provided with a waste liquid atomizing nozzle, and the other side is provided with a waste liquid atomizing nozzle. There is a high-temperature emergency discharge port, and a burner is installed in it; the bottom of each group of the three groups of the gas collection chambers is respectively provided with an exhaust gas inlet connected with the exhaust gas pipeline, and a purge pipe connected with the purge pipeline. The inlet and the purified gas outlet connected with the purified gas pipeline; the burner is respectively provided with a combustion-supporting gas inlet, a main fire pipeline, and an ignition pipeline; the main fire pipeline and the ignition pipeline are connected with gas after they are connected Inlet; one side of the upper part of the waste liquid storage tank is provided with a waste liquid inlet, and the other side is connected with the waste liquid atomizing nozzle through pipeline I; one side of the lower part of the waste liquid storage tank is provided with a waste liquid storage tank The other side is connected to the waste liquid atomizing nozzle through the filter and the waste liquid conveying pump in turn through the pipeline II; the top of the waste liquid storage tank is respectively provided with a waste liquid storage tank vent valve and a condensate return liquid outlet, The condensate discharge and liquid return port is respectively connected with the waste gas pipeline, the purge pipeline and the purified gas pipeline through the pipeline III through the condensate discharge pump.

The high-temperature emergency discharge port is a pipe with a temperature resistance of over 1200°C.

The pipeline I is provided with a waste liquid return valve.

A waste liquid stop valve is provided on the pipeline II between the filter and the waste liquid delivery pump.

A waste liquid check valve and a flow meter are sequentially arranged on the pipeline II between the waste liquid conveying pump and the waste liquid atomizing nozzle.

A condensate discharge check valve is provided on the pipeline III between the condensate discharge and liquid return port and the condensate discharge pump.

The outlet of the condensate discharge pump is connected with the condensate discharge check valve.

The exhaust gas pipeline, the purging pipeline and the purification gas pipeline are all provided with an exhaust gas reversing valve and a condensate discharge opening valve.

A pressure gauge is provided on the emptying valve of the waste liquid storage tank.

The combustion chamber is provided with a high temperature automatic alarm system.

Compared with the prior art, the utility model has the following advantages:

1. The utility model utilizes the combustion tower to burn these waste liquids containing organic components, which can realize high-efficiency purification treatment of liquid and gas multiple wastes at the same time, reduces waste treatment costs, and effectively solves the waste gas that has been used in the unsaturated resin industry. The problems of high cost, high energy consumption, and cumbersome engineering for separate treatment of waste liquid and waste liquid are achieved, and the purpose of multi-purpose and energy saving of one tower is achieved at the same time.

2. In the utility model, the outlet of the condensate discharge pump is connected with the condensate discharge check valve, which can prevent the waste liquid from accumulating in the gas collecting chamber and the connected pipeline to cause flashover and other accidents, and the safety is high.

3. The utility model has simple structure and convenient installation.

Description of drawings

The specific embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

Fig. 1 is the schematic diagram of the utility model.

In the figure: 1—waste liquid inlet, 2—waste liquid storage tank, 3—waste liquid storage tank drain outlet, 4—waste liquid storage tank vent valve, 5—filter, 6—condensate return port, 7—waste liquid Liquid stop valve, 8—waste liquid delivery pump, 9—waste liquid check valve, 10—flow meter, 11—waste liquid atomizing nozzle, 12—waste liquid return valve, 13—waste gas inlet, 14—waste gas reversing valve , 15—Gas collection chamber, 16—Regenerator, 17—Combustion chamber, 18—Condensate drain open valve, 19—Condensate drain pump, 20—Condensation drain check valve, 21—Purge inlet, 22—Gas inlet, 23—main fire pipeline, 24—ignition pipeline, 25—burner, 26—support gas inlet, 27—high temperature emergency discharge port, 28—purified gas outlet.

Detailed ways

As shown in Figure 1, an integrated treatment system for organic waste gas and organic waste liquid suitable for a combustion tower, the system includes a combustion tower and a waste liquid storage tank 2.

The combustion tower includes three groups of gas collection chambers 15, a regenerator 16 placed on the gas collection chamber 15 and a combustion chamber 17 placed above the regenerator 16; one side of the combustion chamber 17 is provided with a waste liquid atomizing nozzle 11 , the other side is provided with a high-temperature emergency discharge port 27, which is provided with a burner 25; the bottom of each group of gas collection chambers in the three groups of gas collection chambers 15 is respectively provided with an exhaust gas inlet 13 connected to the exhaust gas pipeline, and The purge inlet 21 connected to the purge pipeline and the purge gas outlet 28 connected to the purge gas pipeline; the burner 25 is respectively provided with an auxiliary gas inlet 26, a main fire pipeline 23, and an ignition pipeline 24; the main fire pipeline 23 and the The ignition pipeline 24 is connected with the gas inlet 22 after being paralleled; the waste liquid inlet 1 is provided on one side of the upper part of the waste liquid storage tank 2, and the other side is connected with the waste liquid atomizing nozzle 11 through the pipeline I; the lower part of the waste liquid storage tank 2 There is a waste liquid storage tank drain 3 on one side, and the other side is connected to the waste liquid atomizing nozzle 11 through the filter 5 and the waste liquid delivery pump 8 in turn through the pipeline II; the top of the waste liquid storage tank 2 is respectively provided with a waste liquid storage tank. The tank vent valve 4 and the condensate return port 6 are respectively connected with the waste gas pipeline, the purge pipeline and the purified gas pipeline through the pipeline III through the condensate drain pump 19 .

Among them: the high temperature emergency discharge port 27 is a pipe with a temperature resistance of 1200°C or higher.

The waste liquid return valve 12 is arranged on the pipeline I, and its function is to prevent the waste liquid conveying pump 8 from holding back pressure, causing the waste liquid conveying pressure to be unstable and affecting the flow field distribution in the combustion chamber 17.

A waste liquid stop valve 7 is provided on the pipeline II between the filter 5 and the waste liquid delivery pump 8 .

The pipeline II between the waste liquid delivery pump 8 and the waste liquid atomizing nozzle 11 is sequentially provided with a waste liquid check valve 9 and a flow meter 10 .

A condensate discharge check valve 20 is provided on the pipeline III between the condensate discharge and liquid return port 6 and the condensate discharge pump 19 .

The outlet of the condensate discharge pump 19 is connected with the condensate discharge check valve 20 to prevent the waste liquid from accumulating in the gas collection chamber 15 and the connected pipelines, which may cause flashover and other accidents.

The exhaust gas pipeline, the purging pipeline and the purified gas pipeline are all provided with an exhaust gas reversing valve 14 and a condensate discharge opening valve 18 .

A pressure gauge is provided on the vent valve 4 of the waste liquid storage tank.

The combustion chamber 17 is provided with a high temperature automatic alarm system.

The fuel gas is delivered to the burner 25 by the ignition pipeline 24 for ignition work. After the flame is stabilized, the main fire pipeline 23 completes the supply of fuel;

When the utility model treats organic waste gas and organic waste liquid, its working states are divided into startup, normal operation, off-line and emergency stop. The working steps of startup are divided into the first startup after the system installation is completed and the restart after running and shutting down.

The first start-up work steps after the installation of the system is completed are as follows: open the auxiliary gas inlet 26, the purge inlet 21 and the purge gas outlet 28, and the air passes through the auxiliary gas inlet 26 and the purge inlet 21, and the combustion chamber 17 of the combustion tower device, heat storage. The chamber 16 and the gas collection chamber 15 are purged, and the purge time is determined according to the size of the combustion tower device, usually not less than 30 seconds. After the purging work is completed, the combustion system conducts gas leak detection to ensure ignition safety. After the leak detection is completed, the gas inlet 22 is opened, and the gas is transported from the ignition pipeline 24 to the burner 25 for ignition work. If the ignition fails, the gas inlet is closed. 22. Repeat the above purging work until the ignition is successful. After the ignition is successful, the gas supply work of the ignition pipeline 24 is continued until the main fire pipeline 23 is opened after the flame is stable, and the stable gas supply work is completed by the main fire pipeline 23 . After the main fire pipeline 23 is opened, the combustion system enters a stable state, and the temperature rise of the combustion chamber 17 is performed. At this time, the role of the air supplied into the combustion tower device through the gas inlet 22 and the purge inlet 21 is to supply oxygen for the combustion of the gas. When the temperature of the combustion chamber 17 reaches the design temperature (700~1000℃), the system startup work is completed.

The waste liquid storage tank 2 is provided with a waste liquid inlet 1 , a waste liquid storage tank sewage outlet 3 , a waste liquid storage tank vent valve 4 and a condensate return liquid outlet 6 . The waste liquid inlet 1 is connected to the production waste liquid, and the production waste liquid is led to the waste liquid storage tank 2 for buffering, storage, and gas-liquid separation; The drain valve 4 of the waste liquid storage tank is provided with a pressure gauge to prevent the pressure in the waste liquid storage tank 2 from being too high; The liquid is led to the waste liquid storage tank 2 to protect the combustion tower device and prevent the waste liquid from accumulating in the gas collection chamber 15 and the connected pipelines to cause flash combustion and other accidents.

The functions of the waste liquid stop valve 7 and the waste liquid check valve 9 are to protect the waste liquid delivery pump 8, prevent the waste liquid from backflow and cause wear on the waste liquid delivery pump 8, and at the same time facilitate the maintenance work of the waste liquid delivery pump 8.

The function of the flow meter 10 is to control the flow rate of the waste liquid entering the combustion chamber 17 of the combustion tower, and its function is to prevent the large temperature fluctuation of the combustion chamber 17 caused by the excessive amount of waste liquid, incomplete atomization of the waste liquid atomizing nozzle 11, The waste liquid after atomization is not fully oxidized, and the waste liquid accumulates.

The working steps of restarting after the operation is stopped are as follows: open the condensate discharge opening valve 18, and use the condensate discharge pump 19 to discharge the waste liquid accumulated in the gas collection chamber and the connected pipeline to the waste liquid storage tank 2 through the condensate return port 6. After the condensate discharge work is completed, the condensate discharge opening valve 18 is closed, and the first start-up work step after the system installation is completed is performed.

The working steps of the normal operation of the system are as follows: After the start-up of the system is completed, that is, the temperature of the combustion chamber 17 reaches the design temperature (700~1000°C), the exhaust gas inlet 13 is opened, and the exhaust gas enters the three gas collections in turn through the periodic switching of the exhaust gas reversing valve 14. The work of the chamber 15; at the same time, the production waste liquid enters the waste liquid storage tank 2 from the waste liquid inlet 1, and then filters the impurities through the filter 5, passes through the waste liquid stop valve 7, and passes through the waste liquid check valve before and after the waste liquid delivery pump 8. The valve 9 and the flow meter 10 are sent to the waste liquid atomizing nozzle 11 and sprayed into the combustion chamber 17 after being atomized. The valve 14 is discharged to the purified gas outlet 28 to complete the continuous coordinated purification of waste gas and waste liquid.

Under the normal operating state of the system, protection measures such as high temperature and high pressure are provided. When the temperature of the combustion chamber 17 reaches the design temperature, the combustion system connected to the combustion chamber 17 is closed and the heat supply is stopped; when the temperature of the combustion chamber 17 exceeds the design temperature for a certain amount Scope, the high-temperature emergency discharge port 27 connected with the combustion chamber 17 is opened, and the emergency heat removal work of the combustion chamber 17 is carried out; when the above-mentioned work is carried out, the temperature of the combustion chamber 17 continues to exceed the design temperature, and the auxiliary gas inlet 26 is opened, and the air is used to directly The combustion chamber 17 is cooled and cooled; the combustion chamber 17 is equipped with an automatic high temperature alarm system. When the temperature reaches 1180°C, the system automatically alarms. When the temperature reaches 1200°C, in order to ensure the safety of the system, the system starts the automatic off-line program.

The automatic off-line working steps of the system: the combustion system is closed, the waste liquid transfer pump 8 is closed, the exhaust gas inlet 13 is closed, the auxiliary gas inlet 26 and the purge inlet 21 are opened, and fresh air is introduced into the combustion tower gas collection chamber 15, the regenerator 16 and the combustion chamber. Room 17, start the system cooling procedure, when the system temperature drops to the design temperature, the system switches to the normal operation state.

System shutdown work steps: When the system is in normal operating state, when the system needs to be shut down due to front-end equipment shutdown, system maintenance or failure, it is only necessary to start the automatic shutdown program, directly shut down the combustion system and waste liquid transfer pump 8, and slowly close the exhaust gas inlet 13 , the auxiliary gas inlet 26 and the purge inlet 21 remain open, and the auxiliary gas inlet 26 and the purge inlet 21 are closed 60 seconds after the automatic shutdown procedure is started.

Claims (10)

1. an organic waste gas, organic waste liquid integrated treatment system applicable to combustion tower, is characterized in that: this system comprises combustion tower and waste liquid storage tank (2); Described combustion tower comprises three groups of gas collecting chambers (15 ), a regenerator (16) placed on the gas collection chamber (15), and a combustion chamber (17) placed above the regenerator (16); one side of the combustion chamber (17) A waste liquid atomizing nozzle (11) is provided, the other side of which is provided with a high-temperature emergency discharge port (27), and a burner (25) is provided therein; The bottom of the gas collecting chamber is respectively provided with an exhaust gas inlet (13) connected with the exhaust gas pipeline, a purge inlet (21) connected with the purge pipeline, and a purified gas outlet (28) connected with the purified gas pipeline; the burner ( 25) are respectively provided with an auxiliary gas inlet (26), a main fire pipeline (23), and an ignition pipeline (24); the main fire pipeline (23) and the ignition pipeline (24) are connected in parallel. There is a gas inlet (22); one side of the upper part of the waste liquid storage tank (2) is provided with a waste liquid inlet (1), and the other side is connected with the waste liquid atomizing nozzle (11) through pipeline I; the One side of the lower part of the waste liquid storage tank (2) is provided with a waste liquid storage tank sewage outlet (3), and the other side is atomized with the waste liquid through the filter (5), the waste liquid delivery pump (8) and the waste liquid through the pipeline II in sequence. The nozzles (11) are connected; the top of the waste liquid storage tank (2) is respectively provided with a waste liquid storage tank vent valve (4) and a condensate return port (6), and the condensate return port (6) passes through the pipeline III The exhaust condensate pump (19) is respectively connected with the exhaust gas pipeline, the purge pipeline and the purified gas pipeline. 2 . The integrated treatment system for organic waste gas and organic waste liquid suitable for a combustion tower according to claim 1 , wherein the high temperature emergency discharge port ( 27 ) is a pipe with a temperature resistance above 1200° C. 3 . 3. An integrated treatment system for organic waste gas and organic waste liquid suitable for a combustion tower according to claim 1, characterized in that: a waste liquid return valve (12) is provided on the pipeline I. 4. An integrated treatment system for organic waste gas and organic waste liquid suitable for a combustion tower according to claim 1, characterized in that: between the filter (5) and the waste liquid transfer pump (8) The said pipeline II is provided with a waste liquid stop valve (7). 5. An integrated treatment system for organic waste gas and organic waste liquid suitable for a combustion tower according to claim 1, characterized in that: the waste liquid delivery pump (8) and the waste liquid atomizing nozzle (11) A waste liquid check valve (9) and a flow meter (10) are arranged on the pipeline II between ) in sequence. 6. An integrated treatment system for organic waste gas and organic waste liquid suitable for a combustion tower according to claim 1, characterized in that: the condensate draining liquid return port (6) and the condensate draining pump (19) A drain check valve (20) is arranged on the pipeline III between. 7. An integrated treatment system for organic waste gas and organic waste liquid suitable for combustion towers according to claim 6, characterized in that: the outlet of the condensate discharge pump (19) and the condensate discharge check valve ( 20) Connected. 8. A kind of organic waste gas, organic waste liquid integrated treatment system suitable for combustion tower as claimed in claim 1, it is characterized in that: described waste gas pipeline and described purging pipeline and described purification gas pipeline are all provided with. There are exhaust gas reversing valve (14) and condensate opening valve (18). 9 . The integrated treatment system for organic waste gas and organic waste liquid suitable for a combustion tower according to claim 1 , wherein a pressure gauge is provided on the discharge valve (4) of the waste liquid storage tank. 10 . 10 . The integrated treatment system for organic waste gas and organic waste liquid suitable for a combustion tower according to claim 1 , wherein the combustion chamber ( 17 ) is provided with a high-temperature automatic alarm system. 11 .

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