A waste gas purification and recovery device in a traditional Chinese medicine decoction piece processing process

Abstract

The utility model provides a kind of waste gas purification and recovery device in traditional Chinese medicine decoction piece processing process, it is related to waste gas purification and recovery device technical field, solve the problem of the effect of the limited traditional Chinese medicine decoction piece processing waste gas treatment mode, including the waste gas collection unit, pretreatment unit, depth purification unit, recovery unit and exhaust unit connected in turn, the waste gas collection unit includes gas collecting hood and the waste gas conveying pipeline connected with gas collecting hood, the gas collecting hood is set on traditional Chinese medicine decoction piece processing equipment top, for collecting the waste gas generated in processing process, the waste gas conveying pipeline is used to collect the waste gas conveying to pretreatment unit. The device can quickly and effectively collect the waste gas generated by traditional Chinese medicine frying by using waste gas collection unit, pretreatment unit, depth purification unit and recovery unit, improve practicality.

Description

Technical Field

[0001] This utility model belongs to the technical field of waste gas purification and recovery device, and more specifically, it relates to a waste gas purification and recovery device in the process of processing traditional Chinese medicine decoction pieces. Background Technology

[0002] The processing of prepared Chinese medicinal herbs is a crucial step in the traditional Chinese medicine industry, playing a vital role in ensuring the quality, efficacy, and safety of Chinese medicine. During the processing of prepared Chinese medicinal herbs, steps such as stir-frying, roasting, calcining, and steaming often generate a large amount of waste gas. This waste gas has a complex composition, typically containing particulate matter, volatile organic compounds, odorous substances, and some harmful chemical components.

[0003] Based on the above, the inventors have discovered the following problems: traditional waste gas treatment methods have limited effectiveness. Some processing enterprises only use simple ventilation measures, directly discharging waste gas into the atmosphere. This not only leads to a waste of a large amount of recyclable resources, but also causes serious pollution to the surrounding environment, affecting air quality and residents' lives.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a waste gas purification and recovery device in the process of processing Chinese herbal medicine pieces, in order to achieve a more practical purpose. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a waste gas purification and recovery device for the processing of traditional Chinese medicine decoction pieces, thereby solving the problem of limited effectiveness of current waste gas treatment methods for processing traditional Chinese medicine decoction pieces.

[0006] The purpose and efficacy of this utility model's waste gas purification and recovery device during the processing of traditional Chinese medicine decoction pieces are achieved through the following specific technical means:

[0007] A waste gas purification and recovery device for the processing of traditional Chinese medicine decoction pieces includes a waste gas collection unit, a pretreatment unit, a deep purification unit, a recovery unit, and an exhaust unit connected in sequence.

[0008] The waste gas collection unit includes a gas collection hood and a waste gas conveying pipe connected to the gas collection hood. The gas collection hood is set above the traditional Chinese medicine decoction piece processing equipment and is used to collect the waste gas generated during the processing. The waste gas conveying pipe is used to transport the collected waste gas to the pretreatment unit.

[0009] The pretreatment unit includes a spray tower connected to the waste gas conveying pipeline. The spray tower is equipped with a spraying device and a packing layer. The spraying device is used to spray absorbent liquid into the spray tower to remove some particulate matter and soluble pollutants from the waste gas.

[0010] The deep purification unit includes an adsorption box connected to a spray tower via a pipe. The adsorption box is filled with adsorption material for further adsorbing organic pollutants and odor substances in the exhaust gas.

[0011] The recovery unit includes a condenser connected to the adsorption box via a pipe and a recovery tank connected to the condenser. The condenser is used to condense and liquefy the condensable and recoverable components in the waste gas, and the recovery tank is used to store the recovered materials after condensation.

[0012] The exhaust unit includes an induced draft fan connected to the condenser via a pipe and an exhaust stack connected to the induced draft fan. The induced draft fan is used to provide power for the flow of exhaust gas and discharge the treated exhaust gas into the atmosphere through the exhaust stack.

[0013] Furthermore, the spraying device includes a spray pipe installed on the inner wall of the spray tower and multiple nozzles evenly arranged on the spray pipe. A connecting pipe is installed on the spray pipe, and the connecting pipe is connected to an external absorbent supply system. The absorbent is water or a chemical reagent solution to meet the purification needs of different types of waste gas.

[0014] Furthermore, the packing layer has a multi-layer structure, with a support plate between each packing layer. The support plate is used to support the packing and ensure that the exhaust gas can pass through the packing layer evenly.

[0015] Furthermore, the adsorption box is equipped with multiple drawers arranged in layers, each drawer being filled with adsorption material, and the drawers can be pulled out for easy replacement of the adsorption material.

[0016] Furthermore, the condenser is a shell-and-tube condenser or a plate condenser. The condenser is provided with a cooling medium inlet and a cooling medium outlet. The exhaust gas is cooled by circulating the cooling medium, so that the condensable components in the exhaust gas are liquefied. The bottom of the condenser is provided with a condensate outlet, which is connected to a recovery tank.

[0017] Furthermore, the surface of the recycling tank is provided with a discharge port for periodically discharging the recycled material.

[0018] Furthermore, it also includes a control system, which is connected to components such as the spraying device, adsorption box, condenser, and induced draft fan, and is used to monitor and control the operating parameters of each component in real time, so as to realize the automated operation and remote monitoring of the device.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] When this utility model is used, the waste gas collection unit, pretreatment unit, deep purification unit and recycling unit can quickly and effectively collect the waste gas generated during the stir-frying of Chinese medicine, thus improving its practicality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a waste gas purification and recovery device for the processing of traditional Chinese medicine decoction pieces according to this utility model.

[0022] Figure 2 This is a schematic diagram of the pretreatment unit in a waste gas purification and recovery device during the processing of traditional Chinese medicine decoction pieces according to this utility model.

[0023] Figure 3 This is a schematic diagram of a deep purification unit in a waste gas purification and recovery device for the processing of traditional Chinese medicine decoction pieces according to this utility model.

[0024] Figure 4 This is a schematic diagram of the condenser in a waste gas purification and recovery device during the processing of traditional Chinese medicine decoction pieces according to this utility model.

[0025] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0026] 1. Exhaust gas collection unit; 101. Gas collection hood; 102. Exhaust gas conveying pipeline;

[0027] 2. Pretreatment unit; 201. Spray tower; 202. Spraying device; 203. Packing layer; 204. Support plate;

[0028] 2021. Sprinkler pipe; 2022. Sprinkler head; 2023. Connecting pipe;

[0029] 3. Deep purification unit; 301. Adsorption box; 302. Adsorption material; 303. Drawer;

[0030] 4. Recycling unit; 401. Condenser; 402. Recycling tank;

[0031] 4011 Cooling medium inlet; 4012 Cooling medium outlet; 4013 Condensate outlet;

[0032] 4021, Emission outlet;

[0033] 5. Exhaust unit; 501. Exhaust fan; 502. Exhaust stack. Detailed Implementation

[0034] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0035] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Example:

[0038] As attached Figure 1 To be continued Figure 4 As shown:

[0039] This utility model provides a waste gas purification and recovery device for the processing of traditional Chinese medicine decoction pieces, including a waste gas collection unit, a pretreatment unit, a deep purification unit, a recovery unit and an exhaust unit connected in sequence.

[0040] The waste gas collection unit includes a gas collection hood and a waste gas conveying pipe connected to the gas collection hood. The gas collection hood is installed above the traditional Chinese medicine processing equipment and is used to collect the waste gas generated during the processing. Its size and shape are designed according to the specific specifications of the processing equipment and the waste gas generation situation to ensure that the waste gas generated during the processing can be collected comprehensively and effectively. The waste gas conveying pipe is used to transport the collected waste gas to the pretreatment unit. The pipe material is selected from corrosion-resistant and high-temperature resistant materials, such as stainless steel, to adapt to the corrosive components and high-temperature characteristics that the waste gas may contain.

[0041] The pretreatment unit includes a spray tower connected to the waste gas conveying pipeline. The spray tower is equipped with a spraying device and a packing layer. The spraying device is used to spray absorbent liquid into the spray tower to remove some particulate matter and soluble pollutants from the waste gas.

[0042] The spraying device includes a spray pipe installed on the inner wall of the spray tower and multiple nozzles evenly arranged on the spray pipe. A connecting pipe is installed on the spray pipe, and the connecting pipe is connected to an external absorbent liquid supply system. The absorbent liquid is water or a chemical agent solution to meet the purification needs of different types of waste gas. The packing layer has a multi-layer structure, and a support plate is installed between each packing layer. The support plate is used to support the packing and ensure that the waste gas can pass through the packing layer evenly.

[0043] The deep purification unit includes an adsorption box connected to a spray tower via a pipe. The adsorption box is filled with adsorption material for further adsorbing organic pollutants and odor substances in the exhaust gas.

[0044] The recovery unit includes a condenser connected to the adsorption box via a pipe and a recovery tank connected to the condenser. The condenser is used to condense and liquefy the condensable and recoverable components in the waste gas, and the recovery tank is used to store the recovered materials after condensation.

[0045] The exhaust unit includes an induced draft fan connected to the condenser via a pipe and an exhaust stack connected to the induced draft fan. The induced draft fan is used to provide power for the flow of exhaust gas and discharge the treated exhaust gas into the atmosphere through the exhaust stack.

[0046] The adsorption box is equipped with multiple drawers arranged in layers. Each drawer is filled with adsorption material, preferably activated carbon. The adsorption box is also equipped with multiple matching drawer grooves, and the drawers can be pulled out for easy replacement of the adsorption material.

[0047] The condenser is either a shell-and-tube condenser or a plate condenser. The condenser is equipped with a cooling medium inlet and a cooling medium outlet. The exhaust gas is cooled by circulating the cooling medium, which liquefies the condensable components in the exhaust gas. The bottom of the condenser is equipped with a condensate outlet, which is connected to a recovery tank.

[0048] The surface of the recycling tank is provided with a discharge port, which is used to periodically discharge the recycled material.

[0049] It also includes a control system, which is connected to components such as the spraying device, adsorption box, condenser, and induced draft fan. The control system is used to monitor and control the operating parameters of each component in real time, so as to realize the automated operation and remote monitoring of the device.

[0050] The specific usage of this embodiment is as follows:

[0051] During the processing of traditional Chinese medicine decoction pieces, waste gas is first collected by a gas collection hood and then enters the spray tower of the pretreatment unit via a waste gas conveying pipeline. Inside the spray tower, the waste gas undergoes preliminary filtration by entering the packing layer. Then, the waste gas rises and comes into full contact with the absorbent liquid sprayed by the spraying device, removing some particulate matter and soluble pollutants, thus improving the purification effect. The pretreated waste gas then enters the adsorption box of the deep purification unit, where the adsorption material adsorbs organic pollutants and odor substances. Next, the waste gas enters the condenser of the recovery unit, where, under the action of the cooling medium, the condensable components in the waste gas liquefy and are stored in the recovery tank. Finally, the treated waste gas is discharged into the atmosphere through an induced draft fan and an exhaust stack. Throughout the entire operation, the control system monitors and controls the operating parameters of each component in real time to ensure the stable and efficient operation of the device.

[0052] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A waste gas purification and recovery device for the processing of traditional Chinese medicine decoction pieces, characterized in that: It includes a waste gas collection unit (1), a pretreatment unit (2), a deep purification unit (3), a recovery unit (4), and an exhaust unit (5) connected in sequence; The waste gas collection unit (1) includes a gas collection hood (101) and a waste gas conveying pipe (102) connected to the gas collection hood (101). The gas collection hood (101) is set above the traditional Chinese medicine decoction piece processing equipment and is used to collect the waste gas generated during the processing. The waste gas conveying pipe (102) is used to convey the collected waste gas to the pretreatment unit (2). The pretreatment unit (2) includes a spray tower (201) connected to the waste gas conveying pipeline (102). The spray tower (201) is equipped with a spray device (202) and a packing layer (203). The spray device (202) is used to spray absorbent liquid into the spray tower (201) to remove some particulate matter and soluble pollutants in the waste gas. The deep purification unit (3) includes an adsorption box (301) connected to the spray tower (201) via a pipe. The adsorption box (301) is filled with adsorption material (302) for further adsorbing organic pollutants and odor substances in the exhaust gas. The recovery unit (4) includes a condenser (401) connected to the adsorption box (301) via a pipe and a recovery tank (402) connected to the condenser (401). The condenser (401) is used to condense and liquefy the condensable and recoverable components in the waste gas, and the recovery tank (402) is used to store the recovered material after condensation. The exhaust unit (5) includes an induced draft fan (501) connected to the condenser (401) via a pipe and an exhaust stack (502) connected to the induced draft fan (501). The induced draft fan (501) is used to provide power for the flow of exhaust gas and discharge the treated exhaust gas into the atmosphere through the exhaust stack (502).

2. The waste gas purification and recovery device during the processing of traditional Chinese medicine decoction pieces as described in claim 1, characterized in that: The spraying device (202) includes a spray pipe (2021) disposed on the inner wall of the spraying tower (201) and a plurality of nozzles (2022) evenly disposed on the spray pipe (2021). A connecting pipe (2023) is provided on the spray pipe (2021), and the connecting pipe (2023) is connected to an external absorbent supply system. The absorbent is water or a chemical reagent solution to meet the purification needs of different types of waste gas.

3. The waste gas purification and recovery device for the processing of traditional Chinese medicine decoction pieces as described in claim 1, characterized in that: The packing layer (203) has a multi-layer structure, and a support plate (204) is provided between each packing layer (203). The support plate (204) is used to support the packing and ensure that the exhaust gas can pass through the packing layer (203) evenly.

4. The waste gas purification and recovery device during the processing of traditional Chinese medicine decoction pieces as described in claim 1, characterized in that: The adsorption box (301) is provided with multiple drawers (303), which are arranged in layers. Each layer of the drawer (303) is filled with adsorbent material (302). The drawers (303) can be pulled out to facilitate the replacement of the adsorbent material (302).

5. The waste gas purification and recovery device for the processing of traditional Chinese medicine decoction pieces as described in claim 1, characterized in that: The condenser (401) is a shell-and-tube condenser or a plate condenser. The condenser (401) is provided with a cooling medium inlet (4011) and a cooling medium outlet (4012). The waste gas is cooled by circulating cooling medium, so that the condensable components in the waste gas are liquefied. The bottom of the condenser (401) is provided with a condensate outlet (4013), which is connected to the recovery tank (402).

6. The waste gas purification and recovery device for the processing of traditional Chinese medicine decoction pieces as described in claim 1, characterized in that: The surface of the recycling tank (402) is provided with a discharge port (4021), which is used to periodically discharge the recycled material.

7. The waste gas purification and recovery device for the processing of traditional Chinese medicine decoction pieces as described in any one of claims 1-6, characterized in that: It also includes a control system, which is connected to the spray device (202), adsorption box (301), condenser (401) and induced draft fan (501) respectively, for real-time monitoring and control of the operating parameters of each component, so as to realize the automated operation and remote monitoring of the device.

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