Device for converting oily wastewater into high-temperature steam after incineration

Abstract

The utility model provides a device for converting oily wastewater into high-temperature steam after incineration, which belongs to the field of waste rubber and plastic thermal cracking oily wastewater treatment and comprises an incinerator, and the incinerator further comprises a combustion chamber, a spacer bush, an air blower and a thermal insulation layer. The inner side face of the combustion chamber defines a combustion chamber with the diameter reduced at the outlet end, and the fuel inlet and the combustor are both arranged at the inlet end of the combustion chamber; the spacer bush is sleeved outside the combustion chamber and defines a cavity with the outer side surface of the combustion chamber; the air blower communicates with the cavity, is used for introducing cooling air into the cavity and is arranged at the inlet end of the combustion chamber; and the insulating layer is sleeved outside the spacer bush. The technical problems of equipment failure and even personnel injury caused by overburning of the existing incineration equipment are solved, and the device has the characteristics that pollutants in wastewater can be thoroughly decomposed, the overburning condition of the equipment is effectively avoided, and the safe and stable operation of the equipment is ensured.

Description

Technical Field

[0001] The utility model belongs to the field of waste rubber and plastic pyrolysis oil-containing wastewater treatment, and particularly relates to a device for converting high-temperature steam after incineration of oil-containing wastewater. Background Art

[0002] Waste tire pyrolysis refers to an irreversible thermochemical reaction in an anaerobic or anoxic atmosphere, where high temperature is used to pyrolyze the organic matter in waste tires, volatilize volatile products and form solid coke. In the incomplete thermal degradation process, gas, liquid and solid products can be formed. By using this method, waste tires can be completely pyrolyzed into useful products such as pyrolysis oil, pyrolysis carbon black and pyrolysis non-condensable gas.

[0003] The process of the oil-containing wastewater incinerator is a treatment method in which wastewater containing organic compounds is sent to an incinerator for combustion decomposition after pretreatment. Its basic principle is to use the oxidation decomposition at high temperature to burn the organic compounds in the wastewater into harmless substances such as carbon dioxide and water vapor, and at the same time oxidize and decompose other pollutants into harmless substances or solid waste. This treatment method can effectively reduce pollutant emissions and meet environmental protection requirements. However, in order to ensure the combustion decomposition effect, the incinerator often needs to operate at a high temperature, which also leads to overburning of the incineration equipment, resulting in equipment failures and even personal injuries. Content of the Utility Model

[0004] Details of one or more embodiments of the present utility model are set forth in the following drawings and description, so that other features, objects and advantages of the present application will become more concise and understandable.

[0005] The present utility model provides a device for converting high-temperature steam after incineration of oil-containing wastewater, which solves the technical problem that existing incineration equipment may cause equipment failures and even personal injuries due to overburning, and has the characteristics of being able to completely decompose pollutants in wastewater, effectively avoiding overburning of equipment, and ensuring the safe and stable operation of the equipment.

[0006] The present utility model discloses a device for converting high-temperature steam after incineration of oil-containing wastewater, which includes an incinerator. The incinerator further includes a combustion chamber, a jacket, a blower, and a heat-insulating layer. The inner side surface of the combustion chamber defines a combustion chamber with a reduced diameter at the outlet end. The fuel inlet and the burner are both arranged at the inlet end of the combustion chamber. The jacket is sleeved outside the combustion chamber and defines a cavity with the outer side surface of the combustion chamber. The blower is communicated with the cavity for introducing cooling gas into the cavity, and the blower is arranged at the inlet end of the combustion chamber. The heat-insulating layer is sleeved outside the jacket.

[0007] In some of these embodiments, the fuel inlet includes a first fuel inlet and a second fuel inlet. Combustion nozzles are connected to both the first fuel inlet and the second fuel inlet, a pipeline connected to the combustion nozzle, and a control valve provided on the pipeline; the injection port of the combustion nozzle is located inside the combustion chamber.

[0008] In some of these embodiments, the incinerator further includes a thermometer, a pressure gauge, and an explosion relief port provided on the combustion chamber.

[0009] In some of these embodiments, it further includes an oily wastewater buffer tank connected to the incinerator through a wastewater output pipeline. The wastewater in the oily wastewater buffer tank provides fuel to the combustion chamber through the combustion nozzle.

[0010] In some of these embodiments, the wastewater output pipeline includes a main wastewater output pipeline and an auxiliary wastewater output pipeline. Metering and conveying pumps are provided on both the main wastewater output pipeline and the auxiliary wastewater output pipeline.

[0011] In some of these embodiments, control valves and pressure gauges are provided on both the main wastewater output pipeline and the auxiliary wastewater output pipeline.

[0012] In some of these embodiments, a Y-shaped filter valve is further provided on the wastewater output pipeline. Along the wastewater conveying direction, the Y-shaped filter valve is provided in front of the metering and conveying pump.

[0013] In some of these embodiments, it further includes a steam generator connected to the outlet end of the combustion chamber. A number of heat exchange tubes are provided inside the steam generator.

[0014] In some of these embodiments, it further includes a desulfurization tower connected to the steam generator.

[0015] In some of these embodiments, spray parts are provided inside the desulfurization tower.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] The present utility model provides a device for converting high-temperature steam after incinerating oily wastewater. By setting a spacer sleeve, and at the same time by defining the positional relationship between the spacer sleeve and the combustion chamber, the positional relationship between the spacer sleeve and the thermal insulation layer, and the positional relationship between the fuel inlet, the burner, and the blower, it not only ensures that the combustion chamber can completely decompose the pollutants in the wastewater, but also effectively avoids the occurrence of overheating of the equipment, ensuring the safe and stable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings described herein are used to provide a further understanding of the present utility model and constitute a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0019] Figure 1 It is a schematic structural diagram of a device for converting high-temperature steam after incinerating oily wastewater provided by an embodiment of the present utility model;

[0020] In the above figures: 101, combustion chamber; 102, combustion cavity; 103, spacer sleeve; 104, cavity; 105, blower; 106, first fuel inlet; 107, second fuel inlet; 2, oily wastewater buffer tank; 301, main wastewater output pipeline; 302, auxiliary wastewater output pipeline; 303, metering and conveying pump; 304, Y-shaped filter valve; 4, steam generator; 5, desulfurization tower. Detailed implementation manners

[0021] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be described and explained below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. Based on the embodiments provided by the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] An embodiment of the present utility model provides a device for converting high-temperature steam after incinerating oily wastewater, Figure 1 It is a schematic structural diagram of a device for converting high-temperature steam after incinerating oily wastewater according to an embodiment of the present utility model. Refer to Figure 1 As shown, the device at least includes an incinerator, and the incinerator further includes a combustion chamber 101, a spacer sleeve 103, a blower 105, and a heat-insulating layer; the inner side surface of the combustion chamber 101 defines a combustion cavity 102 with a reduced diameter at the outlet end, and the fuel inlet and the burner are both arranged at the inlet end of the combustion chamber 101; the spacer sleeve 103 is sleeved outside the combustion chamber 101 and defines a cavity 104 with the outer side surface of the combustion chamber 101; the blower 105 is communicated with the cavity 104 for introducing cooling gas into the cavity 104, and the blower 105 is arranged at the inlet end of the combustion chamber 101; the heat-insulating layer is sleeved outside the spacer sleeve 103. By setting the spacer sleeve 103 and at the same time defining the positional relationship between the spacer sleeve 103 and the combustion chamber 101, the positional relationship between the spacer sleeve 103 and the heat-insulating layer, and the positional relationship between the fuel inlet, the burner and the blower 105, the above-mentioned device for converting high-temperature steam after incinerating oily wastewater not only ensures that the pollutants in the wastewater can be completely decomposed in the combustion chamber 101, but also effectively avoids the occurrence of overheating of the equipment, ensuring the safe and stable operation of the equipment.

[0023] To prevent equipment downtime caused by blockage or damage of pipelines or combustion nozzles, which may affect the efficiency of wastewater treatment, the fuel inlet includes a first fuel inlet 106 and a second fuel inlet 107. Combustion nozzles are connected to both the first fuel inlet 106 and the second fuel inlet 107, as well as pipelines connected to the combustion nozzles and control valves provided on the pipelines. The injection ports of the combustion nozzles are located inside the combustion chamber 102.

[0024] To facilitate the detection of the temperature and pressure in the combustion chamber 102, to determine whether to introduce cooling gas into the cavity 104 between the jacket 103 and the combustion chamber 101 to prevent overheating of the combustion chamber 101, and to ensure that the pressure in the reaction chamber is within a safe range, the incinerator further includes a thermometer, a pressure gauge, and a pressure relief port provided on the combustion chamber 101.

[0025] The double-layer structure incinerator of the present utility model is the core structure for treating oily wastewater. The double-layer structure incinerator adopts a double-layer design, that is, an outer jacket 103 is provided outside the mixed combustion chamber 101 of the double-layer structure incinerator. Air is introduced into the jacket by a blower 105 and discharged into the high-temperature flue gas output pipeline from the cyclone outlet at the rear right side to protect the mixed combustion chamber 101 from overburning. A heat insulation layer is also provided outside the jacket of the double-layer structure incinerator, and its function is to prevent heat loss. In the middle of the left side of the double-layer structure incinerator, the burner installation port is butt-jointed and fixed with the burner installation flange. A air distribution fan is provided below the burner, and the purpose of air distribution is to make the fuel burn more fully, thereby improving the combustion efficiency and reducing flue gas emissions. In the upper left part of the double-layer structure incinerator, the main combustion nozzle is provided with an inlet pipeline control valve for switching between the main combustion nozzle and the standby combustion nozzle. In the upper left part of the double-layer structure incinerator, a standby combustion nozzle inlet flange is vertically provided and installed by butt-jointing with the standby combustion nozzle connection flange. An inlet pipeline control valve is provided at the liquid inlet of the standby combustion nozzle for controlling the flow rate and switching between the main combustion nozzles. In the middle position at the upper part of the furnace body of the double-layer structure incinerator, a double-layer structure incinerator thermometer and a double-layer structure incinerator pressure gauge are vertically provided for detecting the working temperature and pressure inside the furnace body. On the upper right side of the furnace body of the double-layer structure incinerator, a double-layer structure incinerator pressure relief port is provided, and its function is to avoid explosion caused by excessive pressure and temperature in the double-layer structure incinerator and improve the safety performance of the double-layer structure incinerator. The flue gas outlet of the double-layer structure incinerator is provided in the middle of the right side of the furnace body and is connected to the high-temperature flue gas output pipeline.

[0026] Further, it further includes an oily wastewater buffer tank 2 connected to the incinerator through a wastewater output pipeline. The wastewater in the oily wastewater buffer tank 2 provides fuel to the combustion chamber 102 through a combustion nozzle. The wastewater output pipeline includes a main wastewater output pipeline 301 and an auxiliary wastewater output pipeline 302, and metering and conveying pumps 303 are provided on both the main wastewater output pipeline 301 and the auxiliary wastewater output pipeline 302. Control valves and pressure gauges are provided on both the main wastewater output pipeline 301 and the auxiliary wastewater output pipeline 302. A Y-shaped filter valve 304 is also provided on the wastewater output pipeline. Along the wastewater conveying direction, the Y-shaped filter valve 304 is provided in front of the metering and conveying pump 303.

[0027] The oily wastewater collected after pyrolysis is pumped into the oily wastewater input pipeline through a centrifugal oil pump. A control valve is provided on the oily wastewater input pipeline to send the conveyed oily wastewater into the oily wastewater buffer tank for caching and standby. On the upper left side of the tank body of the oily wastewater buffer tank, an oily wastewater inlet is vertically provided. A liquid level gauge is provided on the left end head of the oily wastewater buffer tank. A breather valve is vertically provided on the right side of the tank body of the oily wastewater buffer tank to automatically release pressure when the pressure in the oily wastewater buffer tank increases. At the bottom of the right end head of the oily wastewater buffer tank, a discharge port is provided and connected to the control valve of the outlet oily wastewater output pipeline. The discharging end of the control valve of the oily wastewater output pipeline is connected to the Y-shaped filter valve 304 of the oily wastewater output pipeline. The conveyance of the oily wastewater adopts a one-use-one-backup vertical layout and installation method. The main metering and conveying pump 303 is arranged on the left side. The inlet of the main metering and conveying pump 303 is connected to the outlet of the Y-shaped filter valve 304. The outlet of the main metering and conveying pump 303 is connected to the control valve of the outlet pipeline of the main metering and conveying pump 303. A pressure gauge is also provided on the inlet pipeline of the main metering and conveying pump 303. The standby metering and conveying pump 303 is arranged on the right side. The inlet of the standby metering and conveying pump 303 is connected to the outlet of the inlet pipeline of the standby metering and conveying pump 303. The outlet of the standby metering and conveying pump 303 is connected to the control valve of the outlet pipeline of the standby metering and conveying pump 303. A pressure gauge is provided on the outlet pipeline of the standby metering and conveying pump 303. The liquids output by the main metering and conveying pump 303 and the standby metering and conveying pump 303 are connected in parallel to the main pipeline of the oily wastewater output. The main combustion nozzle and the standby combustion nozzle share the same main pipeline for feeding the oily wastewater output.

[0028] Furthermore, it also includes a steam generator 4 connected to the outlet end of the combustion chamber 102, and a plurality of heat exchange tubes are arranged in the steam generator 4, and a desulfurization tower 5 connected to the steam generator 4 is also included, and a spraying part is arranged in the desulfurization tower 5. The steam generator 4 is a device that heats liquid water to a certain degree to convert it into high-temperature and high-pressure steam. The high-temperature flue gas output by the high-temperature flue gas output pipeline first enters the flue gas inlet of the steam generator 4. The flue gas inlet is arranged on the left side of the steam generator 4 and is connected to the high-temperature flue gas output pipeline to inject high-temperature flue gas into the high-temperature steam generator 4. There are different numbers of steam generator 4 heat exchange tubes arranged inside the steam generator 4. The input high-temperature flue gas goes through the tube side of the heat exchange tube, and the injected clean water goes through the shell side. The input high-temperature flue gas is used to heat and gasify the water in the shell side to generate steam. The water inlet of the steam generator 4 is arranged at the lower right side of the shell, the steam outlet of the steam generator 4 is vertically arranged at the upper left side of the shell, and a temperature gauge is vertically arranged in the middle of the shell of the steam generator 4. The flue gas outlet of the steam generator 4 is connected to the flue gas delivery pipeline. The flue gas delivered by the flue gas delivery pipeline enters the desulfurization tower 5 for desulfurization treatment. The spray circulation pump of the desulfurization tower 5 is arranged on the left side of the tower body and connected to the spray system of the desulfurization tower 5. The exhaust pipe of the desulfurization tower 5 is arranged on the top of the tower body.

[0029] The above-mentioned device for converting oily wastewater into high-temperature steam after incineration has the following characteristics:

[0030] High efficiency: The wastewater incinerator process can completely decompose the pollutants in the wastewater and reduce its pollution to the environment. At the same time, it has high treatment efficiency and can meet the needs of large-scale wastewater treatment;

[0031] Safety: The wastewater incinerator process is carried out at high temperature, which can effectively kill bacteria, viruses and other pathogens in the wastewater and avoid their harm to the environment and human body;

[0032] Energy saving and environmental protection: The wastewater incinerator process uses the heat released during the combustion and decomposition of wastewater to recover energy, reducing energy consumption. In addition, the harmless substances such as carbon dioxide and water vapor generated after the incineration of wastewater will not cause secondary pollution to the environment.

[0033] The working process of the above-mentioned device for converting oily wastewater into high-temperature steam after incineration is as follows:

[0034] The oily wastewater enters the combustion chamber 102 through the fuel inlet and is fully burned under the action of the burner. When the temperature in the combustion chamber 102 is too high, cooling air is introduced into the cavity 104 through the blower 105 to avoid overheating of the combustion chamber 102.

[0035] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0036] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several variations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A device for converting oily wastewater into high-temperature steam after incineration, characterized in that: Comprising an incinerator, the incinerator further comprising: A combustion chamber, wherein the inner side of the combustion chamber defines a combustion chamber with a reduced diameter at the outlet end, and the fuel inlet and the burner are both arranged at the inlet end of the combustion chamber; A spacer sleeve, the spacer sleeve is sleeved outside the combustion chamber and defines a cavity with the outer side surface of the combustion chamber; a blower, the blower being in communication with the cavity and being used for introducing cooling air into the cavity, and the blower being arranged at an inlet end of the combustion chamber; The heat-insulating layer is sleeved outside the spacer.

2. The device for converting oily wastewater into high-temperature steam after incineration according to claim 1 is characterized in that: The fuel inlet includes a first fuel inlet and a second fuel inlet, and the first fuel inlet and the second fuel inlet are both connected with a combustion nozzle, a pipeline connected to the combustion nozzle, and a control valve arranged on the pipeline; the injection port of the combustion nozzle is located in the combustion chamber.

3. The device for converting oily wastewater into high-temperature steam after incineration according to claim 1 is characterized in that: The incinerator also includes a temperature gauge, a pressure gauge and an explosion vent arranged on the combustion chamber.

4. The device for converting oily wastewater into high-temperature steam after incineration according to claim 2 is characterized in that: It also includes an oily wastewater buffer tank connected to the incinerator through a wastewater output pipeline, and the wastewater in the oily wastewater buffer tank provides fuel to the combustion chamber through the combustion nozzle.

5. The device for converting oily wastewater into high-temperature steam after incineration according to claim 4 is characterized in that: The wastewater output pipeline comprises a main wastewater output pipeline and an auxiliary wastewater output pipeline, and both the main wastewater output pipeline and the auxiliary wastewater output pipeline are provided with a metering delivery pump.

6. The device for converting oily wastewater into high-temperature steam after incineration according to claim 5 is characterized in that: The main wastewater output pipeline and the auxiliary wastewater output pipeline are both provided with control valves and pressure gauges.

7. The device for converting oily wastewater into high-temperature steam after incineration according to claim 5, characterized in that: The wastewater output pipeline is also provided with a Y-shaped filter valve, and along the wastewater conveying direction, the Y-shaped filter valve is arranged in front of the metering conveying pump.

8. The device for converting oily wastewater into high-temperature steam after incineration according to claim 1 is characterized in that: It also includes a steam generator connected to the outlet end of the combustion chamber, wherein a plurality of heat exchange tubes are arranged in the steam generator.

9. The device for converting oily wastewater into high-temperature steam after incineration according to claim 8, characterized in that: Also included is a desulfurization tower connected to the steam generator.

10. The device for converting oily wastewater into high-temperature steam after incineration according to claim 9, characterized in that: A spraying element is arranged in the desulfurization tower.

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