Waste gas collecting and absorbing cover for activated carbon reprocessing

Abstract

The utility model relates to the technical field of activated carbon processing waste gas treatment, in particular to a waste gas collecting and absorbing cover for activated carbon reprocessing, which comprises a dust absorbing cover, a purifying box is arranged above the top end of the outer wall of the dust absorbing cover, and the dust absorbing cover is fixedly connected with the purifying box through a support. The top end of the inner wall of the purification box is communicated with an exhaust pipe used for exhausting, the top end of the inner wall of the dust suction cover is provided with an air suction filtering component, and a purification component used for purifying waste gas is arranged in the purification box. The dust collector is matched with the air suction cylinder to adsorb and filter particles and some volatile gas contained in waste gas in the air suction process, then the waste gas is conveyed into the purification box through the dust collector, and sulfide waste gas is filtered and purified through the cooperation of a chemical purification agent arranged in the purification box. Therefore, the exhaust gas can be purified to a certain extent at the air suction front end, and pollutants in the exhaust gas are prevented from blocking and corroding a pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment during activated carbon processing, in particular to a waste gas collection and absorption cover for activated carbon reprocessing. Background Art

[0002] A variety of waste gases may be generated during the reprocessing of activated carbon. These waste gases mainly come from the regeneration, activation and treatment processes of activated carbon. These waste gases may not only affect the surrounding air quality, but also pose a threat to workers' health.

[0003] Therefore, during the activated carbon processing, it is often necessary to use an air collecting hood to collect the waste gas from the activated carbon processing. The existing air collecting hood often only has the function of suction, and its treatment of waste gas is mostly through filtering by a subsequent filtering mechanism. There will be some particulate impurities and some sulfides in the waste gas from the activated carbon processing. These waste gases may accumulate at the bends of the pipeline during transportation and cause blockage, or rub against the inner wall of the pipeline, which may easily cause corrosion of the pipeline. Therefore, the existing waste gas hoods for activated carbon processing still have certain shortcomings.

[0004] In summary, it is necessary to invent a waste gas collection and absorption hood for activated carbon reprocessing. Utility Model Content

[0005] To this end, the utility model provides a waste gas collection and absorption hood for activated carbon reprocessing to solve the problem that there will be some particulate impurities and some sulfides in the activated carbon processing waste gas. These waste gases may accumulate at the bends of the pipeline during transportation and cause blockage, or rub against the inner wall of the pipeline, causing easy corrosion of the pipeline.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste gas collection and absorption hood for activated carbon reprocessing, comprising a dust hood, a purification box is arranged above the top of the outer wall of the dust hood, the dust hood and the purification box are fixedly connected by a bracket, the top of the inner wall of the purification box is connected to an exhaust pipe for exhaust, the top of the inner wall of the dust hood is provided with an air intake filter component, and a purification component for purifying the waste gas is provided in the purification box.

[0007] Preferably, the air suction filter component includes a vacuum cleaner, which is fixedly mounted at the center of the top end of the outer wall of the dust hood, and an air cylinder is threadedly connected to the top end of the inner wall of the dust hood at a position corresponding to the vacuum cleaner.

[0008] Preferably, the bottom air suction end of the vacuum cleaner is connected to the top of the air suction cylinder, a filter plate is installed on the upper end of the inner wall of the air suction cylinder, and an activated carbon plate is installed on the inner wall of the air suction cylinder and above the filter plate.

[0009] Preferably, the purification component includes an exhaust pipe, both ends of which are installed at the bottom of the inner wall of the purification box, the air supply end of the vacuum cleaner is connected to an air supply pipe, and the end of the air supply pipe away from the vacuum cleaner is connected to the left side of the inner wall of the exhaust pipe.

[0010] Preferably, an air collecting hood is fixed on the inner wall of the purification box and located above the exhaust pipe, an air vent is opened at the center of the top end of the inner wall of the air collecting hood, and a disinfection nozzle is provided on the inner wall of the air vent.

[0011] Preferably, a reflux pump is installed at the top of the outer wall of the purification box and on one side of the exhaust pipe, and the bottom delivery end of the reflux pump is connected to an infusion pump. The end of the infusion pump away from the reflux pump passes through the inner wall of the purification box and is connected to the top of the disinfection nozzle.

[0012] Preferably, the suction end of the reflux pump is connected to a refill tube, the end of the refill tube away from the reflux pump is connected to the chemical agent storage tank, and the bottom end of the inner wall of the refill tube and the side close to the reflux pump are connected to a reflux tube.

[0013] Preferably, the opposite ends of the infusion pipe and the reflux pipe are connected to solenoid valves for controlling drainage, the bottom end of the reflux pipe passes through the top of the outer wall of the gas collecting hood and is connected to the top of the inner wall of the purification box, and the bottom end of the inner wall of the purification box is connected to a waste liquid discharge pipe.

[0014] The beneficial effects of the utility model are:

[0015] In the utility model, the vacuum cleaner is arranged in conjunction with the suction cylinder, which can adsorb and filter the particulate matter and some volatile gases contained in the exhaust gas during the suction process, and then the vacuum cleaner transports the exhaust gas to the purification box, and cooperates with the chemical purification agent arranged in the purification box to filter and purify the sulfide exhaust gas, so that the exhaust gas can be purified to a certain extent at the front end of the suction, thereby avoiding the clogging and corrosion of the pipeline by pollutants in the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the external structure of the utility model in the front view direction;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model in the front view direction;

[0018] Figure 3 This is a schematic diagram of a partial cross-sectional structure of the air suction cylinder in the utility model when viewed from the front;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the exhaust pipe in the utility model.

[0020] In the figure: 100, dust hood; 200, vacuum cleaner; 210, suction cylinder; 211, filter plate; 212, activated carbon plate; 220, gas pipe; 221, exhaust cylinder; 300, purification box; 310, exhaust pipe; 320, gas collection hood; 400, reflux pump; 410, fluid infusion tube; 411, reflux pipe; 420, infusion pump; 421, disinfection nozzle. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0022] Refer to the attached Figure 1-4 The utility model provides an exhaust gas collection and absorption cover for activated carbon reprocessing, including a dust collection cover 100. A purification box 300 is provided above the top of the outer wall of the dust collection cover 100. The dust collection cover 100 is provided to collect the exhaust gas generated by the processing, and the purification box 300 is provided to chemically purify the exhaust gas. The dust collection cover 100 and the purification box 300 are fixedly connected by a bracket. The top of the inner wall of the purification box 300 is connected to an exhaust pipe 310 for exhaust. The top of the inner wall of the dust collection cover 100 is provided with an air suction filter component. The air suction filter component includes a dust collector 200. The dust collector 200 is fixedly installed at the center of the top of the outer wall of the dust collection cover 100. The top of the inner wall of the dust collection cover 100 and the corresponding position of the dust collector 200 are threadedly connected with an air suction cylinder 210. The bottom air suction end of the dust collector 200 is connected to the air suction cylinder 210. The top of the suction cylinder 210 is connected, a filter plate 211 is installed on the upper end of the inner wall of the suction cylinder 210, and an activated carbon plate 212 is installed on the inner wall of the suction cylinder 210 and above the filter plate 211. Specifically, the filter plate 211 and the activated carbon plate 212 can be fixed in the suction cylinder 210 in advance, and the bottom end of the outer wall of the suction cylinder 210 can be provided with an air inlet hole, and the upper end of the suction cylinder 210 can be screwed on the top end of the inner wall of the dust hood 100 by means of a threaded connection. In this way, when the vacuum cleaner 200 is started, it can absorb the exhaust gas through the suction cylinder 210, and the exhaust gas will enter the suction cylinder 210 through the air inlet hole, and then the particulate matter, volatile organic matter and other impurities in the exhaust gas will be filtered through the filter plate 211 and the activated carbon plate 212. After the device has been used for a period of time, the personnel can unscrew the suction cylinder 210 for replacement;

[0023] The purification box 300 is provided with a purification component for purifying the exhaust gas, and the purification component includes an exhaust pipe 221. The two ends of the exhaust pipe 221 are installed at the bottom of the inner wall of the purification box 300, and the side wall of the exhaust pipe 221 needs to be provided with a one-way valve for the backflow of chemicals. The one-way valve can only allow air to enter the exhaust pipe 221. The air supply end of the vacuum cleaner 200 is connected to the air supply pipe 220. The end of the air supply pipe 220 away from the vacuum cleaner 200 is connected to the left side of the inner wall of the exhaust pipe 221. The vacuum cleaner 200 can transport the filtered air to the exhaust pipe 221 through the air supply pipe 220, and the exhaust pipe 221 can discharge the air through the air holes in the side wall. The air will first come into contact with the chemicals stored in the purification box 300 and react chemically, thereby removing the sulfides in the exhaust gas. For chemical filtration, an air collecting hood 320 is fixed on the inner wall of the purification box 300 and located above the exhaust pipe 221. An air vent is opened at the center of the top inner wall of the air collecting hood 320, and a disinfection nozzle 421 is provided on the inner wall of the air vent. The air collecting hood 320 is provided to collect air. A reflux pump 400 is installed on the top outer wall of the purification box 300 and on one side of the exhaust pipe 310. The bottom delivery end of the reflux pump 400 is connected to an infusion pump 420. The end of the infusion pump 420 away from the reflux pump 400 passes through the inner wall of the purification box 300 and is connected to the top of the disinfection nozzle 421. The reflux pump 400 can absorb the chemical agent and deliver it to the disinfection nozzle 421 through the infusion pump 420, so that the disinfection nozzle 421 can spray the chemical agent in atomized form, thereby performing secondary filtration on the collected air.

[0024] The suction end of the reflux pump 400 is connected to a fluid replenishment tube 410, and the end of the fluid replenishment tube 410 away from the reflux pump 400 is connected to the chemical storage tank. The bottom end of the inner wall of the fluid replenishment tube 410 and the side close to the reflux pump 400 are connected to a reflux tube 411. The opposite ends of the fluid replenishment tube 410 and the reflux tube 411 are both connected to solenoid valves for controlling the discharge of liquid. The bottom end of the reflux tube 411 passes through the top of the outer wall of the gas collection hood 320 and is connected to the top of the inner wall of the purification box 300. The bottom end of the inner wall of the purification box 300 is connected to a waste liquid discharge pipe, and the waste liquid discharge pipe is provided to discharge the chemical waste liquid after multiple uses.

[0025] The usage process of the present invention is as follows: First, personnel can assemble the device according to the above instructions, and then fix the device above the activated carbon exhaust gas discharge position or connect it through a hanger or other mounting structure, and then add a certain amount of sulfide exhaust gas treatment chemical agent to the purification box 300 through the reflux pump 400 and the liquid replenishment pipe 410 in advance, which can be an alkaline solution. After the addition is completed, personnel can start the vacuum cleaner 200, so that the vacuum cleaner 200 absorbs the exhaust gas generated by the activated carbon processing through the suction cylinder 210, and the filter plate 211 and the activated carbon plate 212 will perform a certain adsorption treatment on the particulate matter and volatile exhaust gas in the exhaust gas, and the treated exhaust gas will be transported by the vacuum cleaner 200 through the air pipe 220 to the exhaust pipe 221, so that the exhaust gas can be discharged through the exhaust pipe 221 and the chemical agent Contact is carried out, thereby performing initial neutralization and purification, and the waste gas will be gathered to the center of the interior of the gas hood 320 due to the setting of the gas hood 320, and the reflux pump 400 can be controlled to start through the external controller, and the solenoid valve on the infusion tube 410 can be closed, and the reflux pump 400 will absorb the chemical agent through the reflux pipe 411, and transport it back to the disinfection nozzle 421 through the infusion pump 420, and the disinfection nozzle 421 will atomize and spray the chemical agent, so that the waste gas collected at the gas hood 320 can be purified for the second time, and the purified waste gas will be discharged to the next process through the exhaust pipe 310, and when the chemical agent has been used for a certain period of time, the waste liquid can be discharged by opening the valve in the waste liquid discharge pipe, and then it can be replenished, and after the suction cylinder 210 has been used for a long time, the personnel can unscrew the suction cylinder 210 for replacement.

[0026] The above description is merely a preferred embodiment of the present invention. Anyone skilled in the art may utilize the above-described technical solutions to modify the present invention or create equivalent technical solutions. Therefore, any simple modification or equivalent replacement based on the technical solutions of the present invention falls within the scope of protection claimed by the present invention.

Claims

1. A waste gas collection and absorption hood for activated carbon reprocessing, comprising a dust collection hood (100), a purification box (300) being provided above the top of the outer wall of the dust collection hood (100), the dust collection hood (100) and the purification box (300) being fixedly connected by a bracket, and an exhaust pipe (310) for exhausting gas being connected to the top of the inner wall of the purification box (300), characterized in that: An air suction filter component is provided at the top end of the inner wall of the dust hood (100), and a purification component for purifying exhaust gas is provided in the purification box (300).

2. The waste gas collection and absorption hood for activated carbon reprocessing according to claim 1, characterized in that: The air suction filter component comprises a dust collector (200), the dust collector (200) being fixedly mounted at the center of the top end of the outer wall of the dust hood (100), and an air suction cylinder (210) being threadedly connected at the top end of the inner wall of the dust hood (100) and at a position corresponding to the dust collector (200).

3. The waste gas collection and absorption hood for activated carbon reprocessing according to claim 2, characterized in that: The bottom air suction end of the vacuum cleaner (200) is connected to the top end of the air suction cylinder (210); a filter plate (211) is installed on the upper end of the inner wall of the air suction cylinder (210); and an activated carbon plate (212) is installed on the inner wall of the air suction cylinder (210) and above the filter plate (211).

4. The waste gas collection and absorption hood for activated carbon reprocessing according to claim 2, characterized in that: The purification component comprises an exhaust pipe (221), the two ends of the exhaust pipe (221) being mounted on the bottom of both sides of the inner wall of the purification box (300), the air supply end of the vacuum cleaner (200) being connected to an air supply pipe (220), and the end of the air supply pipe (220) away from the vacuum cleaner (200) being connected to the left side of the inner wall of the exhaust pipe (221).

5. The waste gas collection and absorption hood for activated carbon reprocessing according to claim 4, characterized in that: An air collecting hood (320) is fixed on the inner wall of the purification box (300) and located above the exhaust pipe (221). An air vent is provided at the center of the top end of the inner wall of the air collecting hood (320). A disinfection nozzle (421) is provided on the inner wall of the air vent.

6. The waste gas collection and absorption hood for activated carbon reprocessing according to claim 5, characterized in that: A reflux pump (400) is installed at the top of the outer wall of the purification box (300) and on one side of the exhaust pipe (310). The bottom delivery end of the reflux pump (400) is connected to an infusion pump (420). The end of the infusion pump (420) away from the reflux pump (400) passes through the inner wall of the purification box (300) and is connected to the top of the disinfection nozzle (421).

7. The waste gas collection and absorption hood for activated carbon reprocessing according to claim 6, characterized in that: The liquid suction end of the reflux pump (400) is connected to a liquid infusion pipe (410), one end of the liquid infusion pipe (410) away from the reflux pump (400) is connected to a chemical agent storage tank, and the bottom end of the inner wall of the liquid infusion pipe (410) and the side close to the reflux pump (400) are connected to a reflux pipe (411).

8. The waste gas collection and absorption hood for activated carbon reprocessing according to claim 7, characterized in that: The opposite ends of the liquid infusion pipe (410) and the return pipe (411) are both connected to a solenoid valve for controlling liquid discharge. The bottom end of the return pipe (411) passes through the top end of the outer wall of the gas collecting hood (320) and is arranged to be connected to the top end of the inner wall of the purification box (300). The bottom end of the inner wall of the purification box (300) is connected to a waste liquid discharge pipe.

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