Viscous hazardous waste liquid heating treatment device

Abstract

The utility model discloses a viscous hazardous waste liquid heating treatment device which comprises a viscous hazardous waste liquid heating system, a viscous hazardous waste liquid storage box, a spray burning system and a waste heat exchange pipeline. According to the device, the viscous hazardous waste liquid is heated through heat generated after incineration treatment of the viscous hazardous waste liquid, the high viscosity characteristic of the viscous hazardous waste liquid is reduced, and therefore the viscous hazardous waste liquid has the pumpability, and on one hand, it is ensured that the viscous hazardous waste liquid can be smoothly conveyed to an incinerator to be incinerated; on the other hand, the energy utilization efficiency is also improved.

Description

Technical Field

[0001] The utility model relates to the field of hazardous waste treatment, and more specifically, to a device for heating and treating viscous hazardous waste liquid. Background Art

[0002] When viscous hazardous waste liquids are incinerated, due to their high viscosity, they cannot be directly transported to the incinerator through standard pumping equipment. In the prior art, they are usually mixed and put into the material pit for treatment. However, since viscous hazardous waste liquids are generally flammable, the fire safety risk of the material pit is relatively high. Utility Model Content

[0003] The utility model overcomes the shortcomings of the prior art and provides a device for heating and treating viscous hazardous waste liquid, in order to solve the problem.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A viscous hazardous waste liquid heating treatment device comprises a viscous hazardous waste liquid heating system, a viscous hazardous waste liquid storage tank, a spray burning system, and a waste heat exchange pipeline;

[0006] The viscous hazardous waste liquid heating system comprises a viscous hazardous waste liquid heater, and heat exchange can be achieved between the viscous hazardous waste liquid heater and the viscous hazardous waste liquid storage tank;

[0007] The spraying system includes a viscous hazardous waste liquid delivery pump, a viscous hazardous waste liquid delivery pipe, an incineration rotary kiln, and a kiln head burner. The viscous hazardous waste liquid delivery pump is installed on the viscous hazardous waste liquid delivery pipe. One end of the viscous hazardous waste liquid pipe is connected to a viscous hazardous waste liquid storage tank, and the other end is connected to the spraying system.

[0008] The kiln head burner is connected to the viscous hazardous waste liquid pipe, and the kiln head burner is arranged in the incineration rotary kiln;

[0009] The waste heat exchange pipeline is connected with the spray burning system and the viscous hazardous waste liquid heating system.

[0010] This device utilizes the heat generated after the viscous hazardous waste liquid is incinerated to heat the viscous hazardous waste liquid, thereby reducing the high viscosity characteristics of the viscous hazardous waste liquid, thereby making it pumpable. On the one hand, it ensures that it can be smoothly transported to the incinerator for incineration; on the other hand, it also improves energy utilization efficiency.

[0011] A further technical solution is that the viscous hazardous waste liquid heating system further includes a constant temperature water tank;

[0012] The waste heat exchange pipeline is connected with the spraying system and the constant temperature water tank;

[0013] The constant temperature water tank is connected to the viscous hazardous waste liquid heater through a constant temperature water supply pipe and a constant temperature water return pipe, and a water supply pump is installed on the constant temperature water supply pipe and / or the constant temperature water return pipe.

[0014] By heating the viscous hazardous waste liquid heater through a constant temperature water tank, the temperature of the constant temperature water tank and the viscous hazardous waste liquid heater can be accurately controlled, thereby achieving a better temperature control effect.

[0015] A further technical solution is that the viscous hazardous waste liquid heating treatment device further includes a control circuit;

[0016] The constant temperature water supply pipe and / or the constant temperature water return pipe are installed with a flow meter and a solenoid valve;

[0017] The viscous hazardous waste liquid heater is provided with a thermometer, and the viscous hazardous waste liquid storage tank is provided with a rotational viscometer;

[0018] The flow meter, electromagnetic valve, thermometer and rotational viscometer are connected to the control circuit.

[0019] When the viscous hazardous liquid heater reaches the set temperature, or the rotary viscometer reaches the set viscosity, the flow from the constant temperature water tank to the viscous hazardous liquid heater can be controlled by controlling the solenoid valve installed on the constant temperature water supply pipe and / or the constant temperature return pipe, and further precise regulation can be made through the flow meter to achieve control of the heating effect of the viscous hazardous liquid heater.

[0020] A further technical solution is that the spray burning system further includes a compressed air pipe;

[0021] The compressed air pipe is connected to the kiln head burner.

[0022] By passing compressed air to the kiln head burner, the viscous hazardous waste liquid can be atomized at the kiln head burner, and a large amount of air is introduced to make the viscous hazardous waste liquid fully burn.

[0023] A further technical solution is that the spray burning system includes a secondary combustion chamber and a waste heat boiler;

[0024] The secondary combustion chamber and the waste heat boiler are connected to the incineration rotary kiln in sequence.

[0025] The secondary combustion chamber can heat the flue gas at the outlet of the rotary kiln to remove dioxins or reduce the generation of dioxins. At the same time, the flue gas temperature is increased, which is conducive to the generation of water vapor by the waste heat boiler.

[0026] The waste heat boiler can cool and denitrate the waste gas discharged from the outlet of the secondary combustion chamber, and generate water vapor, which can be used to heat water in a constant temperature water tank.

[0027] A further technical solution is that the viscous hazardous waste liquid conveying pipe is made of corrosion-resistant 304 stainless steel, and the viscous hazardous waste liquid conveying pipe is lined with fiberglass flakes.

[0028] A further technical solution is that the viscous hazardous waste liquid delivery pump is a pneumatic diaphragm pump.

[0029] Compared with the prior art, the utility model has at least the following beneficial effects: the device utilizes the heat generated after the viscous hazardous waste liquid is incinerated to heat the viscous hazardous waste liquid, thereby reducing the high viscosity characteristics of the viscous hazardous waste liquid, thereby making it pumpable. On the one hand, it ensures that it can be smoothly transported to the incinerator for incineration; on the other hand, it also improves energy utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0031] In the figure, 1-viscous hazardous waste liquid heating system, 11-viscous hazardous waste liquid heater, 12-constant temperature water tank, 121-constant temperature water supply pipe, 122-constant temperature return pipe, 123-flow meter, 124-solenoid valve, 2-viscous hazardous waste liquid storage tank, 3-injection system, 31-viscous hazardous waste liquid delivery pump, 32-viscous hazardous waste liquid delivery pipe, 33-incineration rotary kiln, 34-kiln head burner, 35-secondary combustion chamber, 36-waste heat boiler, 37-waste heat exchange pipeline. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0033] A viscous hazardous waste liquid heating treatment device comprises a viscous hazardous waste liquid heating system 1, a viscous hazardous waste liquid storage tank 2, a spray burning system 3, a waste heat exchange pipeline 37, and a control circuit;

[0034] The viscous hazardous waste liquid heating system 1 comprises a viscous hazardous waste liquid heater 11 and a constant temperature water tank 12. Heat exchange can be achieved between the viscous hazardous waste liquid heater 11 and the viscous hazardous waste liquid storage tank 2.

[0035] The heat exchange between the viscous hazardous waste liquid heater 11 and the viscous hazardous waste liquid storage tank 2 can be achieved by using the viscous hazardous waste liquid heater 11 as a heating pipe connected to the viscous hazardous waste liquid storage tank 2;

[0036] Alternatively, the viscous hazardous liquid heater 11 is a viscous hazardous liquid heating box, and the viscous hazardous liquid storage box 2 is disposed in the viscous hazardous liquid heating box, and the heat exchange between the hot water and the viscous hazardous liquid storage box 2 is realized. In this embodiment, the viscous hazardous liquid heater 11 is a viscous hazardous liquid heating box, and the storage box is disposed in the viscous hazardous liquid heating box.

[0037] Specifically, the constant temperature water tank 12 is connected to the viscous hazardous liquid heater 11 through a constant temperature water supply pipe 121 and a constant temperature water return pipe 122. A water supply pump is installed on the constant temperature water supply pipe 121 and / or the constant temperature water return pipe 122. A flow meter 123 and a solenoid valve 124 are installed on the constant temperature water supply pipe 121 and / or the constant temperature water return pipe 122;

[0038] In this embodiment, a water pump, a flow meter 123 and a solenoid valve 124 are installed on the constant temperature return water pipe 122 .

[0039] The viscous hazardous waste liquid heater 11 is provided with a thermometer, and the viscous hazardous waste liquid storage tank 2 is provided with a rotational viscometer;

[0040] The flow meter 123, the solenoid valve 124, the thermometer, and the rotational viscometer are connected to the control circuit.

[0041] The spraying system 3 includes a viscous hazardous waste liquid delivery pump 31, a viscous hazardous waste liquid delivery pipe 32, an incineration rotary kiln 33, a kiln head burner 34, a compressed air pipe, a secondary combustion chamber 35, and a waste heat boiler 36. The viscous hazardous waste liquid delivery pump 31 is installed on the viscous hazardous waste liquid delivery pipe 32. One end of the viscous hazardous waste liquid pipe is connected to the viscous hazardous waste liquid storage tank 2, and the other end is connected to the spraying system 3.

[0042] In this embodiment, the viscous hazardous waste liquid delivery pipe 32 is made of corrosion-resistant 304 stainless steel, and the viscous hazardous waste liquid delivery pipe 32 is lined with glass fiber reinforced plastic flakes; the viscous hazardous waste liquid delivery pump 31 is a pneumatic diaphragm pump.

[0043] The kiln head burner 34 is connected to the viscous hazardous waste liquid pipe, the kiln head burner 34 is arranged in the incineration rotary kiln 33, and the compressed air pipe is connected to the kiln head burner 34;

[0044] The secondary combustion chamber 35 and the waste heat boiler 36 are connected to the incineration rotary kiln in sequence.

[0045] The waste heat exchange pipeline 37 is connected to the spray burning system 3 and the viscous hazardous waste liquid heating system 1. In this embodiment, specifically, the waste heat exchange pipeline 37 is connected to the waste heat boiler 36 and the constant temperature water tank 12;

[0046] When in use, the water supply pump on the constant temperature return pipe 122 is started, and the hot water in the constant temperature water tank 12 is transported to the viscous hazardous waste liquid heating system 1 through the constant temperature water supply pipe 121. In this embodiment, the viscous hazardous waste liquid heating system 1 is a viscous hazardous waste liquid heating box, and the viscous hazardous waste liquid storage tank 2 is arranged in the viscous hazardous waste liquid heating box, and heating is achieved using a water bath method.

[0047] When the rotary viscometer in the viscous hazardous waste liquid storage tank 2 measures that the viscosity has reached the set value, the viscous hazardous waste liquid delivery pump 31 is started to deliver the viscous hazardous waste liquid to the kiln head burner 34. The kiln head burner 34 mixes the compressed air with the viscous hazardous waste liquid and atomizes it. The mixture is burned in the incineration rotary kiln 33. The flue gas after combustion enters the secondary combustion chamber 35. The flue gas is further burned in the secondary combustion chamber 35, which can heat the flue gas at the outlet of the incineration rotary kiln 33, remove dioxins, or reduce the generation of dioxins. At the same time, after the flue gas temperature is increased, it is beneficial for the waste heat boiler to generate water vapor.

[0048] The flue gas further burned in the secondary combustion chamber 35 enters the waste heat boiler 36, which can cool and denitrify the exhaust gas discharged from the outlet of the secondary combustion chamber 35 and generate water vapor. The water vapor enters the waste heat exchange pipeline 37, and the waste heat exchange pipeline 37 leads to the constant temperature water tank 12, and the constant temperature water tank 12 is a coil. The water vapor in the coil of the waste heat exchange pipeline 37 heats the constant temperature water tank 12, and the water vapor after heating is discharged from the waste heat exchange pipeline 37.

[0049] When the viscous hazardous liquid heater 11 exceeds or falls below the set temperature, or the rotational viscometer exceeds or falls below the set viscosity, the flow from the constant temperature water tank 12 to the viscous hazardous liquid heater 11 can be controlled by controlling the opening and closing degree of the solenoid valve 124 installed on the constant temperature return pipe 122, and further precise regulation can be performed through the flow meter 123 to achieve control of the heating effect of the viscous hazardous liquid heater 11.

[0050] Although the utility model is described herein with reference to the illustrative embodiments of the utility model, it should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in the present application. More specifically, within the scope disclosed in the present application, multiple variations and improvements can be made to the components and / or layout of the subject combination layout. In addition to the variations and improvements made to the components and / or layout, other uses will also be obvious to those skilled in the art.

Claims

1. A device for heating and treating viscous hazardous waste liquid, characterized in that: Including, viscous hazardous waste liquid heating system, viscous hazardous waste liquid storage tank, spray burning system, waste heat exchange pipeline; The viscous hazardous waste liquid heating system comprises a viscous hazardous waste liquid heater, and heat exchange can be achieved between the viscous hazardous waste liquid heater and the viscous hazardous waste liquid storage tank; The spraying system includes a viscous hazardous waste liquid delivery pump, a viscous hazardous waste liquid delivery pipe, an incineration rotary kiln, and a kiln head burner. The viscous hazardous waste liquid delivery pump is installed on the viscous hazardous waste liquid delivery pipe. One end of the viscous hazardous waste liquid pipe is connected to a viscous hazardous waste liquid storage tank, and the other end is connected to the spraying system. The kiln head burner is connected to the viscous hazardous waste liquid pipe, and the kiln head burner is arranged in the incineration rotary kiln; The waste heat exchange pipeline is connected with the spray burning system and the viscous hazardous waste liquid heating system.

2. A viscous hazardous waste liquid heating treatment device as claimed in claim 1, characterized in that: The viscous hazardous waste liquid heating system also includes a constant temperature water tank; The waste heat exchange pipeline is connected with the spray burning system and the constant temperature water tank; The constant temperature water tank is connected to the viscous hazardous waste liquid heater through a constant temperature water supply pipe and a constant temperature water return pipe, and a water supply pump is installed on the constant temperature water supply pipe and / or the constant temperature water return pipe.

3. A device for heating and treating viscous hazardous waste liquid as claimed in claim 2, characterized in that: Also includes a control circuit; The constant temperature water supply pipe and / or the constant temperature water return pipe are installed with a flow meter and a solenoid valve; The viscous hazardous waste liquid heater is provided with a thermometer, and the viscous hazardous waste liquid storage tank is provided with a rotational viscometer; The flow meter, electromagnetic valve, thermometer and rotational viscometer are connected to the control circuit.

4. The device for heating and treating viscous hazardous waste liquid according to claim 1, characterized in that: The spraying system also includes a compressed air pipe; The compressed air pipe is connected to the kiln head burner.

5. The device for heating and treating viscous hazardous waste liquid according to claim 1, characterized in that: The spray burning system includes a secondary combustion chamber and a waste heat boiler; The secondary combustion chamber and the waste heat boiler are connected to the incineration rotary kiln in sequence.

6. The device for heating and treating viscous hazardous waste liquid according to claim 1, characterized in that: The viscous hazardous waste liquid conveying pipe is made of corrosion-resistant 304 stainless steel, and is lined with glass fiber reinforced plastic flakes.

7. The device for heating and treating viscous hazardous waste liquid according to claim 1, characterized in that: The viscous hazardous waste liquid delivery pump is a pneumatic diaphragm pump.

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