Pharmaceutical and chemical waste gas treatment device

Abstract

The utility model relates to a pharmaceutical chemical waste gas treatment device which comprises a reactor with a closed cavity inside, a biological filter bed, a net-shaped partition plate and a perforated plate which are connected with one another are fixedly mounted inside the reactor from top to bottom, and a spraying device is further arranged above the biological filter bed; a gas inlet channel is arranged at the lower end of the reactor, a gas outlet channel is arranged at the upper end of the reactor, the gas inlet channel is positioned below the perforated plate, and the gas outlet channel is positioned above the spraying device; and the bottom of the reactor is also provided with a drainage channel. According to the utility model, the aim of removing high-concentration ammonia, hydrogen sulfide, hydrogen peroxide and hydrogen nitride in the waste gas is fulfilled through the biological filter bed, and then water-soluble waste gas is removed through the spraying device, so that the waste gas is removed to the greatest extent, high-concentration toxic and harmful waste gas in the pharmaceutical and chemical waste gas is effectively removed, and the environment is protected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of waste gas treatment, especially relates to a medical and chemical industry waste gas treatment device. BACKGROUND

[0002] Medical and chemical industry waste gas treatment is an important task in the field of environmental protection. With the rapid development of medical and chemical industry, waste gas emission problem is increasingly prominent, which causes potential threat to the environment and human health. Therefore, effective medical and chemical industry waste gas treatment technology and method are particularly important.

[0003] Medical and chemical industry waste gas mainly comes from the emission in the process of drug production, which is complex and contains a large amount of organic matter, inorganic matter, particulate matter, malodorous gas and the like. These waste gases have the characteristics of high concentration, great toxicity and difficult degradation, which cause serious harm to the environment and human health.

[0004] Medical and chemical industry waste gas treatment technology usually uses the following methods:

[0005] Adsorption method: the harmful components in waste gas are adsorbed by adsorbent (such as activated carbon, molecular sieve and the like) to achieve the purpose of purification. This method is suitable for treating low-concentration and large-volume waste gas, and has the advantages of simple operation, low equipment investment and the like.

[0006] Catalytic combustion method: through the action of catalyst, organic waste gas is flameless combusted at a lower temperature to be oxidized into carbon dioxide and water. This method is suitable for treating high-concentration and small-volume organic waste gas, and has the advantages of high purification efficiency and low energy consumption.

[0007] Biological method: the harmful components in waste gas are converted into harmless substances by the metabolic action of microorganisms. This method is suitable for treating low-concentration and biodegradable organic waste gas, and has the advantages of low treatment cost and no secondary pollution.

[0008] Membrane separation method: special membrane material is used to separate waste gas to realize the separation or recovery of organic matter and inorganic matter. This method is suitable for treating waste gas containing valuable components, and has the advantages of high separation efficiency and low energy consumption.

[0009] However, the prior art can only use one method to treat medical and chemical industry waste gas, and these methods have advantages and disadvantages, but often can only effectively treat one or several types of waste gas components. For example, adsorption method mainly relies on activated carbon and the like to adsorb organic matter in waste gas, but it is difficult to take into account complex gas components; chemical absorption method relies on specific chemical reaction to convert harmful substances into harmless substances, but its reaction condition is harsh and secondary pollution is easy to occur; and although biological degradation method is environmentally friendly, it has limited treatment effect on high-concentration toxic and harmful waste gas. UTILITY MODEL CONTENTS

[0010] The utility model provides a technical problem to be solved is to provide a kind of medical chemical industry waste gas treatment device, effectively remove high concentration toxic and harmful waste gas in medical chemical industry waste gas, protect environment.

[0011] The utility model provides a kind of medical chemical industry waste gas treatment device, including the reactor with the closed cavity in inside, the reactor inside is fixed from top to bottom and is mutually connected with biological filter bed, net-like partition, perforated plate, the biological filter bed top is also equipped with sprinkler device;The reactor lower end is equipped with air inlet passage, and upper end is equipped with air outlet passage, and the air inlet passage is located below perforated plate, and the air outlet passage is located above sprinkler device;The reactor bottom is also equipped with drainage passage.

[0012] Preferably, the biological filter bed is provided with a plurality of microbial carrier fillers. The microbial carrier filler is used for microorganisms that absorb ammonia, hydrogen sulfide, hydrogen oxide and hydrogen nitride as nutrients, so as to remove ammonia, hydrogen sulfide, hydrogen oxide and hydrogen nitride in the waste gas.

[0013] Preferably, the microbial carrier filler is further provided with a sand layer or a gravel layer below.

[0014] Preferably, the diameter of the net-like partition is smaller than the diameter of the microbial carrier filler. The microbial carrier filler can be stably fixed above the net-like partition.

[0015] Preferably, the perforated plate includes a bottom plate, a first through hole, a flow guide portion and a second through hole. The perforated plate is internally provided with a plurality of protrusions. The first through hole is distributed on the top of the protrusions. The flow guide portion is located around the first through hole. The second through hole is distributed on the edge of the perforated plate. The first through hole facilitates the upward movement of the waste gas. The flow guide portion guides the water sprayed by the sprinkler device. The water flows down from the second through hole to the drainage passage for discharge.

[0016] Preferably, the perforated plate is further provided with a support plate below.

[0017] Preferably, the sprinkler device is an ultrasonic sprayer. The water-soluble waste gas can be removed by the sprinkler device. The ultrasonic sprayer can form rapid and uniform water mist, which can remove the water-soluble waste gas more quickly.

[0018] The utility model has the following technical effects:

[0019] The biological filter bed removes high concentration ammonia, hydrogen sulfide, hydrogen oxide and hydrogen nitride in the waste gas. Then the sprinkler device removes water-soluble waste gas. The waste gas is removed to the greatest extent. The high concentration toxic and harmful waste gas in the medical chemical industry waste gas is effectively removed, and the environment is protected. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1The cross section structure schematic view of the utility model is shown in the figure.

[0021] Figure 2 For Figure 1 The enlarged structure schematic view of A is shown in the figure.

[0022] Figure 3 The partial structure explosion view of the utility model is shown in the figure.

[0023] In the figure: 10, reactor; 11, air inlet channel; 12, air outlet channel; 13, drainage channel; 20, biological filter bed; 30, net-shaped partition; 40, porous plate; 41, bottom plate; 42, first through hole; 43, flow guide part; 44, second through hole; 50, spraying device; 60, support plate. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model is specifically described below in combination with the drawings.

[0025] As Figures 1 to 3 shown, a medical and chemical waste gas treatment device, including inside having the closed cavity's reactor 10, the reactor 10 inside from top to bottom fixedly installed with each other's biological filter bed 20, net-shaped partition 30, porous plate 40, the biological filter bed 20 top still is equipped with the spraying device 50;The reactor 10 lower end is equipped with air inlet channel 11, and the upper end is equipped with air outlet channel 12, the air inlet channel 11 is located below the porous plate 40, and the air outlet channel 12 is located above the spraying device 50;The reactor 10 bottom is still equipped with drainage channel 13.Through biological filter bed 20 reaches the purpose of removing high concentration ammonia, hydrogen sulfide, hydrogen oxide, hydrogen nitride in waste gas, and then removes water-soluble waste gas through spraying device 50, removes waste gas to the greatest extent, effectively removes high concentration toxic and harmful waste gas in medical and chemical waste gas, protects the environment.

[0026] The biological filter bed 20 is provided with a plurality of microbial carrier fillings.

[0027] The microbial carrier filling is below the sand layer or gravel layer.

[0028] The diameter of the net-shaped partition 30 is less than the diameter of the microbial carrier filling.

[0029] The porous plate 40 comprises a bottom plate, first through holes 42, flow guiding portions 43 and second through holes 44, and is internally provided with a plurality of protrusions, the first through holes 42 are distributed on the top of the protrusions, the flow guiding portions 43 are located around the first through holes 42, and the second through holes are distributed on the edge of the porous plate 40. The first through holes 42 facilitate the upward movement of the exhaust gas more uniformly, the flow guiding portions 43 guide the water sprayed by the spraying device 50, and the water flows down from the second through holes to the drainage channel 13 and is discharged.

[0030] The support plate 60 is further installed below the porous plate 40.

[0031] The spraying device 50 is an ultrasonic atomizer. The water-soluble exhaust gas can be removed by the spraying device 50, and the ultrasonic atomizer can form rapid and uniform water mist, so that the water-soluble exhaust gas can be removed more rapidly.

[0032] The use method of the pharmaceutical and chemical industry exhaust gas treatment device is as follows:

[0033] The pharmaceutical and chemical industry exhaust gas is connected from the air inlet channel 11, passes through the first through holes and enters the biological filter bed 20, the microorganism carrier filler of the biological filter bed 20 absorbs the exhaust gas such as ammonia, hydrogen sulfide, hydrogen oxide and hydrogen nitride, the spraying device 50 sprays water to take away the exhaust gas soluble in water, the water sprayed by the spraying device 50 flows into the porous plate 40 and then flows down from the second through holes and is discharged from the drainage channel 13, and the treated exhaust gas is discharged from the air outlet channel 12.

[0034] The above-described embodiments only describe the preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements of the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. A pharmaceutical and chemical waste gas treatment device, characterized in that, The reactor comprises a reactor with a closed cavity inside, a biological filter bed, a net partition and a porous plate fixedly installed inside the reactor from top to bottom, and a spraying device arranged above the biological filter bed; the reactor is provided with an air inlet channel at the lower end and an air outlet channel at the upper end, the air inlet channel is arranged below the porous plate, and the air outlet channel is arranged above the spraying device; the reactor is further provided with a drainage channel at the bottom. The porous plate comprises a bottom plate, first through holes, a flow guide part and second through holes, and a plurality of protrusions are arranged inside the porous plate, the first through holes are arranged on the top of the protrusions, the flow guide part is arranged around the first through holes, and the second through holes are arranged on the edge of the porous plate.

2. The medical pharmaceutical and chemical waste gas treatment device according to claim 1, characterized in that: The biological filter bed is provided with a plurality of microbial carrier fillings.

3. The medical chemical industry waste gas treatment device according to claim 2, characterized in that: The microbial carrier fillings are further provided with a sand layer or a gravel layer below.

4. The medical pharmaceutical and chemical waste gas treatment device according to claim 2, characterized in that: The diameter of the net partition is smaller than the diameter of the microbial carrier fillings.

5. The medical pharmaceutical and chemical waste gas treatment device according to claim 1, characterized in that: The porous plate is further provided with a support plate below.

6. The medical pharmaceutical and chemical waste gas treatment device according to claim 1, characterized in that: The spraying device is an ultrasonic sprayer.

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