Organic waste liquid pretreatment spray burning system

Abstract

The utility model provides an organic waste liquid pretreatment spray burning system, and belongs to the technical field of organic waste treatment equipment. The problem that high viscosity of waste liquid affects the spray burning effect is solved; the waste liquid contains more impurities and is easy to block the spray gun; the low-calorific-value waste liquid is directly incinerated, and combustion is insufficient; and the organic waste liquid is easily congealed in winter in northern areas. The device comprises a waste liquid pretreatment tank, a filtering device, a spray burning device and a waste heat boiler which are sequentially connected, wherein the waste liquid pretreatment tank comprises a tank body, a steam heat preservation heating jacket, a stirring device, a waste liquid inlet, a waste liquid outlet and a sediment drain outlet; the filtering device comprises a filter and a driving pump which are sequentially connected; the spray burning device comprises a waste liquid spray gun, an anti-backfire device and a combustion chamber which are connected in sequence; one side of the waste heat boiler is connected with the smoke exhaust pipeline, and the other side is connected with the steam heat preservation heating jacket. The spray burning device is mainly used for spray burning treatment of organic waste liquid.

Description

TECHNICAL FIELD

[0001] The utility model relates to an organic waste liquid pretreatment spray burning system belongs to organic waste treatment equipment technical field relates to dangerous waste liquid treatment incineration technology. BACKGROUND

[0002] Organic waste liquid due to its different sources, composition also have big difference, at present to the disposal mode of organic waste liquid mainly by incineration, the traditional incineration equipment only carries out simple solid-liquid separation to organic waste liquid and then directly carries out spray burning.

[0003] When the heat value of organic waste liquid is different, the high heat value waste liquid usually has big viscosity, slow fluidity, and the spray burning effect is affected, when the waste liquid contains precipitate or impurity, the spray gun is easily blocked, the low heat value waste liquid is directly incinerated, the combustion temperature is low, combustion is insufficient, and a large amount of auxiliary fuel needs to be supplemented, in addition, in the northern region, the winter is cold and long, the organic waste liquid is easily frozen, and the energy consumption is big by using ordinary heating mode. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problems of big viscosity of waste liquid, slow fluidity, affecting spray burning effect, many impurities in waste liquid, easily causing spray gun blockage, low heat value waste liquid directly incinerated, low combustion temperature, insufficient combustion, needing to supplement a large amount of auxiliary fuel, and organic waste liquid easily frozen in the northern region in winter, the utility model provides an organic waste liquid pretreatment spray burning system.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: an organic waste liquid pretreatment spray burning system, characterized by: including waste liquid pretreatment tank, filter device, spray burning device and waste heat boiler connected in sequence;

[0006] The waste liquid pretreatment tank includes a tank body, a steam insulation heating jacket, a stirring device, a waste liquid inlet and a waste liquid outlet;The tank body is externally sleeved with a steam insulation heating jacket, internally provided with a stirring device, and the side wall is provided with a waste liquid inlet, and the bottom is provided with a waste liquid outlet, and a blowdown valve and a sediment blowdown port are sequentially connected below the waste liquid outlet;

[0007] The filter device includes a filter and a drive pump connected in sequence;

[0008] The spray burning device includes a waste liquid lance, an anti-backfire device and a secondary combustion chamber connected in sequence;The waste liquid lance is connected with the drive pump;The anti-backfire device is arranged on the side wall of the secondary combustion chamber;The secondary combustion chamber is internally provided with a permanent fire device, and the top is provided with an exhaust gas pipeline;

[0009] One side of the waste heat boiler is connected with the exhaust gas pipeline, the other side is connected with the steam insulation heating jacket, and a steam inlet valve is arranged on the connecting pipeline.

[0010] Further, the stirring device is equipped with an explosion-proof electric mixer and a stirring paddle.

[0011] Further, the waste liquid inlet and the waste liquid outlet are both provided with filter screens, the filter screen of the waste liquid inlet has a mesh size of 10-30 meshes, and the filter screen of the waste liquid outlet has a mesh size of 30-50 meshes.

[0012] Further, the waste liquid pretreatment tank is further provided with a liquid level meter, and the waste liquid pretreatment tank is made of glass lining material.

[0013] Further, the filter is a Y-type filter, the filter core of the Y-type filter has a mesh size of 80-100 meshes, and the driving pump is a pneumatic diaphragm pump.

[0014] Further, the filter core of the Y-type filter has a mesh size of 80-100 meshes.

[0015] Further, the Y-type filter and the pneumatic diaphragm pump are both two, and are arranged in parallel on two pipelines.

[0016] Further, the waste liquid spray gun and the driving pump are sequentially provided with a waste liquid on-off valve, an electromagnetic flowmeter and a waste liquid regulating valve.

[0017] Further, the waste liquid spray gun is connected with a compressed air pipeline, a two-fluid spray gun is adopted, an external protective sleeve is arranged, and the material is hard alloy.

[0018] Further, the long-lasting fire device is controlled by an upper computer, and diesel oil is used as fuel.

[0019] Further, the second combustion chamber is further provided with a temperature monitoring device, and the upper computer adjusts the oil injection amount according to the temperature of the second combustion chamber, so that the temperature of the second combustion chamber is ensured to be above 1100 DEG C.

[0020] Compared with the prior art, the organic waste liquid pretreatment and spray burning system has the following beneficial effects:

[0021] 1. The organic waste liquid pretreatment and spray burning system adopts a physical method to pretreat organic waste liquid, does not involve biological and chemical treatment, has simple process, high automation degree and is beneficial to engineering application.

[0022] 2. The organic waste liquid pretreatment and spray burning system reduces the viscosity of waste liquid, improves the flowability, effectively avoids blockage, reduces energy consumption and ensures stable working conditions, and provides favorable conditions for subsequent spray burning treatment.

[0023] 3. The organic waste liquid pretreatment and spray burning system makes impurities in the waste liquid gather and deposit at the bottom of the pretreatment tank through stirring and gravity effect, is discharged in time and is convenient to clean.

[0024] 4. The organic waste liquid pretreatment spray burning system, according to the second combustion chamber burning working condition control liquid inlet valve, and adjust the liquid inlet quantity through the waste liquid regulating valve, can adopt continuous spray burning or intermittent spray burning according to the heat value of waste liquid and the burning working condition, realize the safe and efficient disposal of waste liquid.

[0025] 5. The organic waste liquid pretreatment spray burning system, through automatic detection of the temperature of the second combustion chamber, adjusts the diesel combustion spraying amount, keeps the temperature of the second combustion chamber always reaching the standard of process requirement, and ensures that the waste liquid is fully burned.

[0026] 6. The organic waste liquid pretreatment spray burning system, utilizes the waste heat boiler to recover heat and reduce energy waste. The recovered heat is used to heat steam, and the heating or heat preservation of the waste liquid pretreatment tank is determined by adjusting the steam delivery amount through a valve, heating can reduce the viscosity and improve the fluidity, which is beneficial to spray burning; heat preservation can prevent the waste liquid from freezing in winter in the north.

[0027] 7. The organic waste liquid pretreatment spray burning system can be used with other hazardous waste incineration lines, and a pyrolysis furnace is arranged at the front section of the hazardous waste incineration line for incinerating solid waste, liquid is sprayed into the second combustion chamber for treatment, and solid and liquid waste are treated at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0028] The drawings constituting a part of the present application are used to provide a further understanding of the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application.

[0029] In the drawings:

[0030] Figure 1 It is a structure schematic view of the organic waste liquid pretreatment spray burning system.

[0031] In the drawing: 1 waste liquid pretreatment tank; 11 steam heat preservation heating jacket; 12 stirring device; 13 waste liquid inlet; 14 waste liquid outlet; 15 sediment blowdown; 16 liquid level meter; 21 filter; 22 drive pump; 31 waste liquid spray gun; 32 anti-backfire device; 33 second combustion chamber; 34 long-lasting fire device; 35 smoke exhaust pipeline; 36 compressed air pipeline; 37 waste liquid on-off valve; 38 electromagnetic flowmeter; 39 waste liquid regulating valve; 4 waste heat boiler. DETAILED DESCRIPTION

[0032] The specific implementation manner of the present application will be further described in detail below by combining the drawings in the embodiments of the present application.

[0033] Specific implementation manner one: refer to Figure 1The embodiment is illustrated. The organic waste liquid pretreatment and spray burning system comprises a waste liquid pretreatment tank 1, a filter device, a spray burning device and a waste heat boiler 4 connected in sequence.

[0034] The waste liquid pretreatment tank 1 comprises a tank body, a steam insulation heating jacket 11, a stirring device 12, a waste liquid inlet 13 and a waste liquid outlet 14. The tank body is externally provided with the steam insulation heating jacket 11, internally provided with the stirring device 12, provided with the waste liquid inlet 13 on the side wall and provided with the waste liquid outlet 14 at the bottom. A blowdown valve and a sediment blowdown port 15 are sequentially connected below the waste liquid outlet 14. The stirring device is used for pretreating the waste liquid, reducing the viscosity of the waste liquid, improving the flowability, and simultaneously making the impurities partially gather and deposit and being discharged through the sediment blowdown port.

[0035] The filter device comprises a filter 21 and a driving pump 22 connected in sequence. The filter device is used for filtering the waste liquid, removing the impurities, improving the flowability of the waste liquid and preventing the impurities from blocking the spray gun.

[0036] The spray burning device comprises a waste liquid spray gun 31, an anti-backfire device 32 and a second combustion chamber 33 connected in sequence. The waste liquid spray gun 31 is connected with the driving pump 22. The anti-backfire device 32 is arranged on the side wall of the second combustion chamber 33. The second combustion chamber 33 is internally provided with a permanent fire device 34 and externally provided with a smoke exhaust pipeline 35. The anti-backfire device can effectively prevent the flame from spreading and prevent the backfire accident from occurring.

[0037] One side of the waste heat boiler 4 is connected with the smoke exhaust pipeline 35, and the other side is connected with the steam insulation heating jacket 11. A steam inlet valve is arranged on the connecting pipeline. The waste heat boiler is used for recycling the waste heat, saving the energy and transmitting the heat to the steam insulation heating jacket. The steam inlet valve is used for adjusting the steam delivery amount, heating or insulating the waste liquid storage tank, further reducing the viscosity of the waste liquid, improving the flowability, providing favorable conditions for the spray burning, preventing the organic waste liquid from freezing in the winter in the north, effectively slowing down the corrosion of the pipeline caused by the chemical reaction in the transportation process, internally arranging the heat preservation layer in the pipeline, significantly reducing the heat loss and improving the energy utilization efficiency.

[0038] The organic waste liquid pretreatment and spray burning system comprises an anti-explosion electric stirrer and a stirring paddle. The waste liquid treatment belongs to a flammable and explosive working environment. The anti-explosion electric machine is used to ensure the safe operation of the equipment.

[0039] The organic waste liquid pretreatment spray burning system of the embodiment is provided with a filter screen at the waste liquid inlet 13 and the waste liquid outlet 14, the filter screen aperture of the waste liquid inlet 13 is 10-30 meshes, and the filter screen aperture of the waste liquid outlet 14 is 30-50 meshes. The waste liquid is subjected to secondary step-by-step filtration, part of the large-volume impurities are preliminarily removed, the collision loss of the impurities to the stirring device is reduced, and the impurities are prevented from blocking the spray gun.

[0040] The organic waste liquid pretreatment spray burning system of the embodiment is provided with a liquid level meter 16 at the waste liquid pretreatment tank 1, and the waste liquid pretreatment tank 1 is made of glass lining. The liquid level in the pretreatment tank is detected in real time, the waste liquid is supplemented, and the smooth operation of the system is ensured. The glass lining has strong corrosion resistance, high hardness and is not easy to be scratched. The glass lining surface is smooth, has few dead angles and is not easy to adhere to materials, which is beneficial to the flow of viscous waste liquid.

[0041] The organic waste liquid pretreatment spray burning system of the embodiment is provided with a filter 21 which is a Y-type filter, and the filter element of the Y-type filter is 80-100 meshes, and the driving pump 22 is a pneumatic diaphragm pump. After the waste liquid passes through the filter element, the impurities are further removed, and the impurities are prevented from blocking the spray gun. When the pneumatic diaphragm pump is used to transport the organic waste liquid, the waste liquid can be completely separated from the outside.

[0042] The organic waste liquid pretreatment spray burning system of the embodiment is provided with two Y-type filters and two pneumatic diaphragm pumps which are arranged in parallel on two pipelines. One is used as a backup for the other, so that the damage of the filter device is prevented and the situation of shutdown and production stoppage is avoided.

[0043] The organic waste liquid pretreatment spray burning system of the embodiment is provided with a waste liquid switch valve 37, an electromagnetic flowmeter 38 and a waste liquid regulating valve 39 which are arranged in sequence between the waste liquid spray gun 31 and the driving pump 22. The liquid inlet valve is controlled according to the combustion condition of the second combustion chamber, and the liquid inlet amount is adjusted through the waste liquid regulating valve. Continuous spray burning or intermittent spray burning can be adopted according to the heat value of the waste liquid and the combustion condition, so that the safe and efficient disposal of the waste liquid is realized.

[0044] The organic waste liquid pretreatment spray burning system of the embodiment is provided with a waste liquid spray gun 31 which is connected with a compressed air pipeline 36 and adopts a two-fluid spray gun which is externally provided with a protective sleeve and is made of hard alloy such as hastelloy. The spray gun works in a high-temperature and high-corrosion environment for a long time, and the hastelloy has excellent corrosion resistance, high-temperature strength and reliability.

[0045] The organic waste liquid pretreatment spray burning system of the embodiment is provided with a long-lasting fire device 34 which is controlled by a host computer and uses diesel as fuel. The automation is improved, and the diesel has high energy density and combustion heat value and can provide higher energy output during combustion.

[0046] The organic waste liquid pretreatment spray burning system of the embodiment is provided with a temperature monitoring device, and an upper computer adjusts the oil injection amount according to the temperature of the second combustion chamber 33 to ensure that the temperature of the second combustion chamber 33 is above 1100 DEG C. The waste liquid is ensured to be burned at a temperature above 1100 DEG C for a residence time of not less than 2s, thus meeting the industrial process standard, and harmful substances are completely decomposed, and the flue gas after burning is stable and up to the standard.

[0047] The organic waste liquid pretreatment spray burning system of the embodiment is provided with a temperature monitoring device, and an upper computer adjusts the oil injection amount according to the temperature of the second combustion chamber 33 to ensure that the temperature of the second combustion chamber 33 is above 1100 DEG C. The waste liquid is ensured to be burned at a temperature above 1100 DEG C for a residence time of not less than 2s, thus meeting the industrial process standard, and harmful substances are completely decomposed, and the flue gas after burning is stable and up to the standard.

[0048] The working principle of the organic waste liquid pretreatment spray burning system is as follows:

[0049] The organic waste liquid pretreatment spray burning system of the embodiment is provided with a temperature monitoring device, and an upper computer adjusts the oil injection amount according to the temperature of the second combustion chamber 33 to ensure that the temperature of the second combustion chamber 33 is above 1100 DEG C. The waste liquid is ensured to be burned at a temperature above 1100 DEG C for a residence time of not less than 2s, thus meeting the industrial process standard, and harmful substances are completely decomposed, and the flue gas after burning is stable and up to the standard.

[0050] The organic waste liquid pretreatment spray burning system of the embodiment is provided with a temperature monitoring device, and an upper computer adjusts the oil injection amount according to the temperature of the second combustion chamber 33 to ensure that the temperature of the second combustion chamber 33 is above 1100 DEG C. The waste liquid is ensured to be burned at a temperature above 1100 DEG C for a residence time of not less than 2s, thus meeting the industrial process standard, and harmful substances are completely decomposed, and the flue gas after burning is stable and up to the standard. The above disclosed embodiments of the utility model are only used for helping to set forth the utility model. The embodiments do not describe all the details, and also do not limit the utility model to be only the specific implementation mode. According to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model.

Claims

1. An organic liquid waste pre-treatment incineration system, characterized by: The waste liquid pre-treatment tank (1), the filter device, the spray burning device and the waste heat boiler (4) are sequentially connected. The waste liquid pre-treatment tank (1) comprises a tank body, a steam insulation heating jacket (11), a stirring device (12), a waste liquid inlet (13) and a waste liquid outlet (14); the tank body is externally provided with the steam insulation heating jacket (11), and is internally provided with the stirring device (12); the side wall is provided with the waste liquid inlet (13); the bottom is provided with the waste liquid outlet (14); the waste liquid outlet (14) is sequentially connected with a blowdown valve and a sediment blowdown port (15) below. The filter device comprises a filter (21) and a driving pump (22) which are sequentially connected. The spray burning device comprises a waste liquid spray gun (31), an anti-backfire device (32) and a secondary combustion chamber (33) which are sequentially connected; the waste liquid spray gun (31) is connected with the driving pump (22); the anti-backfire device (32) is arranged on the side wall of the secondary combustion chamber (33); the secondary combustion chamber (33) is internally provided with a permanent fire device (34), and is provided with a smoke exhaust pipeline (35) on the top. The waste heat boiler (4) is connected with the smoke exhaust pipeline (35) on one side, and is connected with the steam insulation heating jacket (11) on the other side; a steam inlet valve is arranged on the connecting pipeline.

2. The organic liquid waste pre-treatment incineration system according to claim 1, characterized in that: The stirring device (12) is provided with an explosion-proof electric mixer and a stirring paddle.

3. The organic liquid waste pre-treatment incineration system according to claim 1, characterized in that: The waste liquid inlet (13) and the waste liquid outlet (14) are both provided with filter screens; the filter screen of the waste liquid inlet (13) has a mesh size of 10-30 meshes; and the filter screen of the waste liquid outlet (14) has a mesh size of 30-50 meshes.

4. The organic liquid waste pre-treatment incineration system according to claim 1, characterized in that: The waste liquid pre-treatment tank (1) is further provided with a liquid level meter (16); and the waste liquid pre-treatment tank (1) is made of glass lining material.

5. The organic liquid waste pre-treatment incineration system according to claim 1, characterized in that: The filter (21) is a Y-type filter; the filter core of the Y-type filter has a mesh size of 80-100 meshes; and the driving pump (22) is a pneumatic diaphragm pump.

6. The organic liquid waste pre-treatment incineration system according to claim 5, characterized in that: Both the Y-type filter and the pneumatic diaphragm pump are two, and are arranged in parallel on two pipelines.

7. The organic liquid waste pre-treatment incineration system according to claim 1, characterized in that: The waste liquid spray gun (31) is sequentially provided with a waste liquid on-off valve (37), an electromagnetic flowmeter (38) and a waste liquid regulating valve (39) between the driving pump (22).

8. The organic liquid waste pre-treatment incineration system according to claim 1, characterized in that: The waste liquid spray gun (31) is connected with a compressed air pipeline (36); a two-fluid spray gun is adopted; a protective sleeve is externally arranged; and the material is hard alloy.

9. The organic liquid waste pre-treatment incineration system according to claim 1, characterized in that: The permanent fire device (34) is controlled by an upper computer; and diesel oil is used as fuel.

10. The organic liquid waste pre-treatment incineration system according to claim 9, characterized in that: The secondary combustion chamber (33) is further provided with a temperature monitoring device; the upper computer adjusts the oil injection amount according to the temperature of the secondary combustion chamber (33); and the temperature of the secondary combustion chamber (33) is ensured to be above 1100℃.

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