Hazardous waste packaging barrel treatment device

Abstract

The utility model discloses a hazardous waste packing barrel treatment device which comprises a constant-temperature water tank, a waste packing barrel cleaning assembly and an irritant gas collecting and treating device. Water in the constant-temperature water tank is conveyed to the flushing head of the flushing bin through the conveying pump, the hazardous waste packaging barrel is flushed through the flushing head, gas collection is completed through the gas collection hood, and the safety problem caused by leakage of irritant gas is avoided. Moreover, after gas collection is completed, the irritant gas obtained after gas collection reaches the spray tower through the waste gas conveying pipe, most of the irritant gas is removed through chemical reaction, and after the irritant gas is removed, the irritant gas can be discharged.

Description

Technical Field

[0001] The utility model relates to the field of hazardous waste treatment, and more specifically, to a hazardous waste packaging barrel treatment device. Background Art

[0002] Hazardous waste barrels often have residual hazardous waste inside after use. In order to reuse hazardous waste barrels, the existing technology usually adopts two methods: cleaning the whole barrel and recycling plastic sheets / iron blocks after crushing. However, some hazardous waste barrels contain highly irritating substances, such as ammonia, diethylamine, thionyl chloride, acrolein, etc. During the crushing, cleaning and reuse process, the irritating gases generated will evaporate into the air in large quantities, which can easily cause injuries and poisoning to the production workshop personnel on the one hand, and on the other hand, the direct emission of irritating gases will also pollute the environment. Utility Model Content

[0003] The utility model overcomes the shortcomings of the prior art and provides a hazardous waste packaging barrel processing device, so as to solve the problems of personnel safety and environmental pollution existing in the prior art.

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

[0005] A hazardous waste packaging barrel treatment device, comprising a constant temperature water tank, a waste packaging barrel cleaning component, and an irritant gas collection and treatment device;

[0006] The waste packaging barrel cleaning assembly includes a flushing chamber and a flushing head, wherein the flushing head is arranged in the flushing chamber and connected to the constant temperature water tank through a water supply pipe, and a delivery pump is arranged on the water supply pipe;

[0007] The irritant gas collection and treatment device includes a gas collecting hood, a waste gas delivery pipe, a negative pressure device, and a spray tower. The gas collecting hood is arranged on the upper part of the flushing bin, the waste gas delivery pipe is connected to the gas collecting hood and the spray tower, and the negative pressure device is arranged on the waste gas delivery pipe.

[0008] The hot water generated by the hot water boiler is supplied to the constant temperature water tank to maintain the water tank temperature at 80-90℃. The water in the constant temperature water tank is transported to the flushing head of the flushing bin through a delivery pump, and the flushing head is used to flush the hazardous waste packaging barrels. During the hot water flushing process, the irritating gas generated by the hazardous waste evaporates, and then the negative pressure device generates negative pressure. The gas collecting hood of the irritating gas collection and treatment device completes the gas collection, avoiding safety problems caused by the leakage of irritating gases.

[0009] After the irritating gases are collected, they are transported through the waste gas conveying pipe to the spray tower. The spray tower can spray liquids of different properties according to the different contaminants of hazardous wastes treated in this batch, and remove most of the irritating gases through chemical reactions. After the irritating gases are removed, they can be discharged for treatment.

[0010] A further technical solution is that the waste packaging barrel cleaning assembly also includes a water circulation device;

[0011] The water circulation device includes a water collecting device and a water return pipe, and the water collecting device is arranged at the lowest point of the flushing bin;

[0012] The water return pipe is arranged between the water collecting device and the constant temperature water tank.

[0013] Since the flushing water will also be contaminated by hazardous waste during the flushing process, in order to reduce the pressure of hazardous waste treatment, the flushing water can be recycled.

[0014] A further technical solution is that a filter screen is arranged above the water collecting device.

[0015] The function of the filter is to prevent solid waste from entering the circulation and causing damage to the equipment.

[0016] A further technical solution is that a solenoid valve and a flow meter are provided on the return pipe.

[0017] In order to control the return water situation, for example, to avoid the circulation of heavily polluted sewage, the water circulation can be controlled by a solenoid valve.

[0018] A further technical solution is that the irritant gas collection and treatment device also includes a dry filter, and the dry filter is connected to the spray tower through a ventilation pipe.

[0019] The main function of the dry filter is to remove the liquid brought out by the spray tower.

[0020] A further technical solution is that the irritant gas collection and treatment device also includes a UV photolysis catalytic oxidation device, and the UV photolysis catalytic oxidation device is connected to the spray tower through a ventilation pipe.

[0021] UV photocatalytic oxidation can decompose irritating gases from large molecules into small molecules, thereby eliminating irritation and odor.

[0022] A further technical solution is that the irritating gas collection and treatment device further includes an activated carbon adsorption device;

[0023] The activated carbon adsorption device is connected to the spray tower through a ventilation pipe.

[0024] Activated carbon adsorption can completely adsorb the decomposed small molecules and a very small amount of irritating gases, and ultimately achieve emission standards.

[0025] A further technical solution is that the irritating gas collection and processing device further includes an air induction device;

[0026] The induced draft device comprises an induced draft fan and an exhaust duct. The induced draft device is arranged in the exhaust duct, and the exhaust duct is connected to the spray tower through a ventilation pipe.

[0027] Since other further processing equipment needs to be set up behind the spray tower, this leads to the need for induced draft to promote air flow and processing.

[0028] Compared with the prior art, the utility model has at least the following beneficial effects: the utility model delivers water in the constant temperature water tank to the flushing head of the flushing bin through a delivery pump, and the flushing head flushes the hazardous waste packaging barrel, and the gas collection hood completes the gas collection, thereby avoiding safety problems caused by the leakage of irritating gases. Moreover, after the gas collection is completed, the irritating gas reaches the spray tower through the waste gas delivery pipe, and most of the irritating gas is removed by chemical reaction. After the irritating gas is removed, it can be discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0030] In the figure, 1-constant temperature water tank, 11-water supply pipe, 12-return pipe, 121-solenoid valve, 122-flow meter, 2-waste packaging barrel cleaning component, 21-flushing bin, 3-irritating gas collection and treatment device, 31-gas collection hood, 32-waste gas conveying pipe, 33-spray tower, 34-dry filter, 35-UV photocatalytic oxidation device, 36-activated carbon adsorption device, 37-draft device, 371-draft fan, 372-exhaust duct. DETAILED DESCRIPTION

[0031] 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.

[0032] A hazardous waste packaging barrel processing device, see Figure 1 , including a constant temperature water tank 1, a waste packaging barrel cleaning component 2, and an irritating gas collection and treatment device 3;

[0033] The waste packaging barrel cleaning assembly 2 includes a flushing chamber 21, a flushing head, and a water circulation device. The flushing head is arranged in the flushing chamber 21, and the flushing head is connected to the constant temperature water tank 1 through a water supply pipe 11. A delivery pump is arranged on the water supply pipe 11;

[0034] The water circulation device includes a water collecting device and a water return pipe 12, and the water collecting device is arranged at the lowest point of the flushing bin 21;

[0035] The water return pipe 12 is arranged between the water collecting device and the constant temperature water tank 1, and a filter screen is arranged above the water collecting device.

[0036] The water return pipe 12 is provided with a solenoid valve 121 and a flow meter 122 .

[0037] The irritating gas collection and treatment device 3 includes a gas collection hood 31, an exhaust gas delivery pipe 32, a negative pressure device, a spray tower 33, a dry filter 34, a UV photocatalytic oxidation device 35, an activated carbon adsorption device 36, and an air induction device 37;

[0038] The gas collecting hood 31 is disposed on the upper part of the flushing chamber 21 , the waste gas conveying pipe 32 is connected to the gas collecting hood 31 and the spray tower 33 , and the negative pressure device is disposed on the waste gas conveying pipe 32 .

[0039] The negative pressure device can be any one of a negative pressure source, a blowing fan, and an air pump. In this embodiment, the negative pressure source is an air pump.

[0040] In this embodiment, the dry filter 34, the UV photocatalytic oxidation device 35, and the activated carbon adsorption device 36 are sequentially installed behind the spray tower 33 and connected through a ventilation pipe.

[0041] The induced draft device 37 includes an induced draft fan 371 and an exhaust duct 372 . The induced draft device 37 is disposed at the rear of the activated carbon adsorption device 36 , specifically in the exhaust duct 372 . The exhaust duct 372 is connected to the spray tower 33 through a ventilation pipe.

[0042] The induced draft fan 371 may be any one of a negative pressure source, a blowing fan, and an air pump. In the present embodiment, the induced draft fan 371 is a blowing fan.

[0043] When in use, the hazardous waste packaging barrel is placed in the flushing bin 21. In this embodiment, the flushing bin 21 can store one ton barrel or four 200L barrels.

[0044] The hot water generated by the hot water boiler is supplied to the constant temperature water tank 1 to maintain the water tank temperature at 80-90° C. In this embodiment, the constant temperature water tank 1 realizes water replenishment and water temperature control through the boiler.

[0045] The water in the constant temperature water tank 1 is delivered to the flushing head of the flushing bin 21 through a delivery pump, and the flushing head flushes the hazardous waste packaging barrel. During the hot water flushing process, the irritating gas generated by the hazardous waste volatilizes, and then the negative pressure device generates negative pressure. The gas collecting hood 31 of the irritating gas collection and treatment device 3 completes the gas collection, avoiding safety problems caused by leakage of irritating gas.

[0046] After the irritating gas is collected, it passes through the waste gas delivery pipe 32 to the spray tower 33. The spray tower 33 can spray liquids of different properties according to the different contaminants of the hazardous wastes to be processed in this batch, and remove most of the irritating gas through chemical reaction. After the irritating gas is removed;

[0047] The treated exhaust gas passes through the dry filter 34, the UV photocatalytic oxidation device 35, and the activated carbon adsorption device 36 in sequence, and the dry filter 34 can perform emission treatment.

[0048] The main function of the dry filter 34 is to remove the liquid brought out by the spray tower 33.

[0049] UV photocatalytic oxidation can decompose irritating gases from large molecules into small molecules, thereby eliminating irritation and odor.

[0050] Activated carbon adsorption can adsorb the decomposed small molecules and a very small amount of irritating gases, and finally meet the standards. The exhaust gas that meets the standards is discharged under the action of the induced draft fan 371 in the exhaust duct 372.

[0051] 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 hazardous waste packaging barrel treatment device, characterized in that: Including constant temperature water tank, waste packaging barrel cleaning components, irritant gas collection and treatment device; The waste packaging barrel cleaning assembly includes a flushing chamber and a flushing head, wherein the flushing head is arranged in the flushing chamber and connected to the constant temperature water tank through a water supply pipe, and a delivery pump is arranged on the water supply pipe; The irritant gas collection and treatment device includes a gas collecting hood, a waste gas delivery pipe, a negative pressure device, and a spray tower. The gas collecting hood is arranged on the upper part of the flushing bin, the waste gas delivery pipe is connected to the gas collecting hood and the spray tower, and the negative pressure device is arranged on the waste gas delivery pipe.

2. A hazardous waste barrel treatment device as claimed in claim 1, characterized in that: The waste packaging barrel cleaning assembly also includes a water circulation device; The water circulation device includes a water collecting device and a water return pipe, and the water collecting device is arranged at the lowest point of the flushing bin; The water return pipe is arranged between the water collecting device and the constant temperature water tank.

3. A hazardous waste barrel treatment device as claimed in claim 2, characterized in that: A filter screen is arranged above the water collecting device.

4. A hazardous waste barrel treatment device as claimed in claim 2, characterized in that: The water return pipe is provided with a solenoid valve and a flow meter.

5. The hazardous waste barrel treatment device according to claim 1, characterized in that: The irritating gas collection and processing device also includes a dry filter, and the dry filter is connected to the spray tower through a ventilation pipe.

6. A hazardous waste packaging barrel treatment device as claimed in claim 1, characterized in that: The irritating gas collection and treatment device also includes a UV photolysis catalytic oxidation device, and the UV photolysis catalytic oxidation device is connected to the spray tower through a ventilation pipe.

7. The hazardous waste barrel treatment device according to claim 1, characterized in that: The irritating gas collection and processing device also includes an activated carbon adsorption device; The activated carbon adsorption device is connected to the spray tower through a ventilation pipe.

8. A hazardous waste barrel treatment device according to any one of claims 5 to 7, characterized in that: The irritating gas collection and processing device further includes an air induction device; The induced draft device comprises an induced draft fan and an exhaust duct. The induced draft device is arranged in the exhaust duct, and the exhaust duct is connected to the spray tower through a ventilation pipe.

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