Dangerous waste liquid conveying, mixing and feeding device

Abstract

The utility model discloses a dangerous waste liquid conveying, mixing and feeding device which comprises a conveying main pipe, an intermediate tank and a control system, the conveying main pipe is connected with a conveying pump in series, the conveying pump is electrically connected with the control system, one end of the conveying main pipe is closed, the other end of the conveying main pipe is communicated with the intermediate tank, and the conveying main pipe is communicated with a plurality of conveying branch pipes and additive pipes. One end of the additive pipe is communicated with an additive container, an additive is arranged in the additive container, one end of the conveying branch pipe is communicated with an extraction hose, the conveying branch pipe and the additive pipe are provided with flow monitors for monitoring and controlling flow, the flow monitors are electrically connected with the control system, and the intermediate tank is communicated with a feeding pipe with a valve. And the feeding pipe is communicated with the incinerator spray gun. Compared with the prior art, the mixing efficiency is high, the mixing risk can be effectively reduced, and the volatilization of dangerous waste liquid is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of material transportation, and particularly relates to a feeding device for transporting and mixing hazardous waste liquid. Background Art

[0002] When disposing of hazardous waste by incineration, in order to keep the working conditions stable and the flue gas emissions up to standard, it is necessary to rationally mix the waste entering the kiln according to the calorific value of the waste entering the kiln and the content of pollution elements such as halogens, so as to make it homogenized.

[0003] At present, the mixing of liquid hazardous waste needs to first conduct a mixing test on a small amount of samples, and then directly mix different waste liquids that have passed the mixing test in a large barrel, and send the mixture to a storage tank for temporary storage or directly feed it. This method has a low degree of automation, low efficiency, and the liquid components in the recycled waste liquid barrels are often unevenly distributed, and abnormal situations that need to be excluded during mixing are likely to occur. Even if no abnormal situation occurs, there are potential risks such as static electricity generated by liquid flow. Especially when it comes to the mixing of a large amount of hazardous waste liquid, there is a greater risk, and it may cause combustion and explosion due to static electricity or other reasons. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the problems of high risk and low efficiency in the large-capacity mixing of existing hazardous waste liquid, and provide a hazardous waste liquid transportation and mixing feeding device with high mixing efficiency and capable of effectively reducing the mixing risk.

[0005] The technical solution adopted by the utility model to solve its technical problems: A hazardous waste liquid transportation and mixing feeding device includes a main transportation pipe, an intermediate tank and a control system. A transportation pump is connected in series to the main transportation pipe, and the transportation pump is electrically connected to the control system. One end of the main transportation pipe is closed, and the other end is communicated with the intermediate tank. Several transportation branch pipes and additive pipes are communicated on the main transportation pipe. One end of the additive pipe is communicated with an additive container, and an additive is provided in the additive container. One end of the transportation branch pipe is communicated with a suction hose. Flow monitors for monitoring and controlling the flow rate are provided on the transportation branch pipe and the additive pipe, and the flow monitors are electrically connected to the control system. A feeding pipe with a valve is communicated on the intermediate tank, and the feeding pipe is communicated with the burner spray gun of the incinerator.

[0006] Optionally, the flow monitor consists of a regulating valve and a flow meter.

[0007] Optionally, the additive is an emulsifier or an antistatic agent.

[0008] Optionally, a safety valve and an observation window are provided on the intermediate tank, and a discharge pipe with a valve is provided at its bottom.

[0009] Optionally, check valves are provided on the transportation branch pipe and the additive pipe.

[0010] Optionally, a tubular mixer is connected in series on the main transportation pipe.

[0011] Usage method and principle of the utility model: During use, additives with different functions such as emulsifiers and antistatic agents are added to each additive container. Then, each extraction hose is inserted into different hazardous waste liquid barrels. According to the mixing ratio of each hazardous waste liquid, the flow monitors on the corresponding delivery branch pipes of each hazardous waste liquid are controlled by the control system to determine the inflow of different hazardous waste liquids. Additionally, the flow monitors on the corresponding additive pipes of each additive are controlled by the control system to determine the addition amount of different additives. The delivery pump is started, and different hazardous waste liquids and additives are preliminarily mixed in the main delivery pipe. The preliminarily mixed waste liquid enters the intermediate tank, where it is further diffusely mixed. The solid substances generated during the mixing process will also precipitate here. The mixed waste liquid with less impurity content flows out through the feed pipe and is sent to the incinerator spray gun and sprayed into the incinerator for incineration;

[0012] The principle of the utility model lies in that by controlling the flow monitors on each delivery branch pipe and additive pipe through the control system, different hazardous waste liquids are continuously and low - volume mixed in the main delivery pipe at a specified ratio, overcoming the risk of large - volume mixing of different hazardous waste liquids, improving the mixing efficiency, reducing the volatilization of hazardous waste liquids. At the same time, a certain amount of additives with different functions are added during mixing to further reduce the risk of mixing different hazardous waste liquids and make the mixing of different hazardous waste liquids more uniform; by using the intermediate tank, the waste liquid can be diffusely mixed more homogenously, and the solid substances generated during the mixing process can be precipitated to prevent the blockage of the incinerator spray gun.

[0013] Compared with the prior art, the utility model has at least the following beneficial effects: The utility model has a high mixing efficiency, can effectively reduce the mixing risk, and reduce the volatilization of hazardous waste liquids. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of the utility model;

[0015] The sub - labels in the drawings are as follows: main delivery pipe 1, intermediate tank 2, control system 3, delivery pump 4, delivery branch pipe 5, additive pipe 6, additive container 7, extraction hose 8, flow monitor 9, regulating valve 91, flowmeter 92, feed pipe 10, safety valve 11, observation window 12, discharge pipe 13, check valve 14, tubular mixer 15. SPECIFIC EMBODIMENTS

[0016] Example 1, hereinafter in conjunction with Figure 1A further description is made for the present utility model. A dangerous waste liquid mixing and feeding device includes a main conveying pipe 1, an intermediate tank 2 and a control system 3. A conveying pump 4 is connected in series to the main conveying pipe, and the conveying pump is electrically connected to the control system. The main conveying pipe is made of corrosion-resistant steel pipe and is suspended by a bracket. One end of the main conveying pipe is closed, and the other end is fixedly communicated with the upper side wall of the intermediate tank. Several conveying branch pipes 5 and additive pipes 6 are welded and communicated on the main conveying pipe. One end of the additive pipe is fixedly communicated with an additive container 7, and an additive is provided in the additive container. The additive is a functional additive such as an emulsifier or an antistatic agent. One end of the conveying branch pipe is threadedly communicated with a suction hose 8, and the suction hose is made of corrosion-resistant metal hose. Flow monitors 9 for monitoring and controlling the flow rate are provided on the conveying branch pipe and the additive pipe. The flow monitor consists of a regulating valve 91 and a flow meter 92. The flow meter monitors the flow rate, and the regulating valve controls the flow rate. The flow monitor is electrically connected to the control system. A feeding pipe 10 with a valve is welded and communicated on the lower side wall of the intermediate tank, and the feeding pipe is communicated with the burner spray gun.

[0017] To ensure the safety of the intermediate tank, observe the liquid mixing condition in the tank, and regularly discharge the sediment, a safety valve 11 is installed on the top of the intermediate tank, a transparent observation window 12 is inlaid on the side wall of the intermediate tank, and a discharge pipe 13 with a valve is welded at the bottom of the intermediate tank.

[0018] To prevent the backflow of the waste liquid and the additive, check valves 14 are provided on the conveying branch pipe and the additive pipe.

[0019] To improve the mixing effect of different dangerous waste liquids, a tubular mixer 15 is connected in series on the main conveying pipe, and the tubular mixer adopts a static tubular mixer.

[0020] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any change or replacement that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered by the protection scope of the present utility model.

Claims

1. Hazardous waste transfer and mixing feeding device, comprising a main transfer pipe (1), an intermediate tank (2) and a control system (3). The main transfer pipe is connected in series with a transfer pump (4), and the transfer pump is electrically connected to the control system. It is characterized in that: One end of the main conveying pipe is closed, and the other end is connected to the intermediate tank. Several conveying branch pipes (5) and additive pipes (6) are connected to the main conveying pipe. One end of the additive pipe is connected to an additive container (7), and an additive is provided in the additive container. One end of the conveying branch pipe is connected to a suction hose (8). Flow monitors (9) for monitoring and controlling the flow rate are provided on the conveying branch pipes and the additive pipes. The flow monitors are electrically connected to the control system. A feed pipe (10) with a valve is connected to the intermediate tank, and the feed pipe is connected to the burner spray gun.

2. The hazardous waste liquid mixing and feeding device according to claim 1, wherein: The flow monitor consists of a regulating valve (91) and a flow meter (92).

3. The hazardous waste liquid mixing and feeding device according to claim 1, wherein: The additive is an emulsifier or an antistatic agent.

4. The hazardous waste liquid transportation and mixing device according to claim 1, wherein: A safety valve (11) and an observation window (12) are provided on the intermediate tank, and a discharge pipe (13) with a valve is provided at the bottom thereof.

5. The hazardous waste liquid transportation and mixing device according to claim 1, characterized in that: Check valves (14) are provided on the conveying branch pipes and the additive pipes.

6. The hazardous waste liquid transportation and mixing feeding device according to claim 1, wherein: A tubular mixer (15) is connected in series on the main conveying pipe.

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