A vacuum dryer exhaust gas treatment structure with multiple filtrations

Abstract

This utility model relates to the field of vacuum dryer technology and discloses a vacuum dryer exhaust gas treatment structure with multiple filtration. It includes a vacuum dryer, an exhaust gas discharge pipe fixedly installed on the top surface of the vacuum dryer, a treatment chamber fixedly installed on the left side of the vacuum dryer, a vacuum pump fixedly installed on the top surface of the treatment chamber, the inlet end of the vacuum pump fixed to the top surface of the exhaust gas discharge pipe, and a guide pipe fixedly installed on the exhaust end of the vacuum pump. One end of the guide pipe extends into the interior of the treatment chamber, where a purification liquid is disposed. A treatment tank is fixedly installed on one side of the guide pipe. This device, through the combined action of liquid purification, condensation separation, and multiple filtration, can effectively achieve high-efficiency purification of the exhaust gas, making it less prone to clogging when the exhaust gas enters the filter assembly, thereby reducing the frequency of maintenance and replacement of the filter assembly.

Description

Technical Field

[0001] This application belongs to the field of vacuum dryer technology, specifically a vacuum dryer exhaust gas treatment structure with multiple filtration. Background Technology

[0002] A vacuum dryer is a device that dries materials by evaporating moisture or other volatile components through heating in a vacuum environment. It utilizes the vacuum state to lower the boiling point of the material, accelerate the drying speed, and reduce problems such as material oxidation and pollution. It is widely used in industries such as chemical, pharmaceutical, and food. During operation, vacuum dryers generate exhaust gases, which mainly come from dust, solvents, and moisture volatilized from the material. Direct discharge of these gases would cause environmental pollution.

[0003] In existing vacuum dryer exhaust gas treatment, adsorption purification is commonly used. Adsorption materials such as filters, activated carbon, and fine filter membranes are used to filter and purify the exhaust gas to meet emission standards. However, since the exhaust gas contains a certain amount of dust, when the exhaust gas comes into direct contact with the filters or activated carbon, although filtration and purification can be achieved, the surface of the filters or activated carbon will be quickly covered with dust and the pores will be blocked. This requires frequent cleaning or replacement, which not only increases maintenance costs and workload, but also affects the exhaust gas treatment efficiency if replacement is not timely. At the same time, frequent disassembly and assembly operations may also affect the sealing and stability of the entire treatment system. Therefore, a vacuum dryer exhaust gas treatment structure with multiple filtration is provided. Utility Model Content

[0004] The purpose of this application is to provide a vacuum dryer exhaust gas treatment structure with multiple filtrations in order to solve the problems mentioned above.

[0005] The technical solution adopted in this application is as follows: A vacuum dryer exhaust gas treatment structure with multiple filtration includes a vacuum dryer, an exhaust gas discharge pipe fixedly installed on the top surface of the vacuum dryer, a treatment chamber fixedly installed on the left side of the vacuum dryer, a vacuum pump fixedly installed on the top surface of the treatment chamber, the inlet end of the vacuum pump being fixed to the top surface of the exhaust gas discharge pipe, a gas guide pipe fixedly installed on the exhaust end of the vacuum pump, one end of the gas guide pipe extending into the interior of the treatment chamber, a purification treatment liquid being provided inside the treatment chamber, a treatment tank fixedly installed on one side of the gas guide pipe, a flow-slowing baffle fixedly installed near the center inside the treatment tank, a connecting pipe fixedly installed on the outer surface of the treatment tank, a condenser separator fixedly installed at the end of the connecting pipe away from the treatment tank, a multiple filtration chamber provided on one side of the vacuum dryer, and the exhaust end of the condenser separator being fixed to one side of the multiple filtration chamber.

[0006] In a preferred embodiment, a partition is fixedly installed inside the processing box near the top, and multiple hollow exhaust pipes are fixedly installed through the top surface of the partition.

[0007] In a preferred embodiment, a conical sludge collection plate is fixedly installed inside the treatment box near the bottom, a sewage pipe is fixedly installed at the bottom of the treatment box, and an electrically controlled valve is fixedly installed on the outer surface of the sewage pipe.

[0008] In a preferred embodiment, a drain pipe is fixedly installed on the bottom surface of the treatment tank, and a sealing end cap is threadedly connected to the bottom end of the drain pipe.

[0009] In a preferred embodiment, tempered glass is fixedly installed on the side of the processing chamber away from the vacuum dryer, and a liquid injection pipe is fixedly installed on the side of the processing chamber away from the processing tank, the liquid injection pipe being connected to an external circulating liquid supply pipe.

[0010] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are: 1. In this application, due to the adoption of the above-mentioned scheme, the exhaust gas generated by the vacuum dryer enters the treatment chamber through the exhaust gas discharge pipe and the air guide pipe under the action of the vacuum pump. At this time, the exhaust gas entering the treatment chamber first comes into contact with the purification liquid. The dust and other particulate impurities in the exhaust gas are adsorbed and settled by the liquid, and some of the soluble harmful components are dissolved. Then the exhaust gas enters the multi-stage filtration chamber. Under the action of the fan, it passes through multiple filtration components such as filter plates, activated carbon plates and fine filter membranes in sequence to further remove residual harmful components. This device can effectively achieve high-efficiency purification of exhaust gas through the combined action of liquid purification, condensation separation and multi-stage filtration. Moreover, since most of the dust has been removed in the early stage, the exhaust gas is less likely to cause blockage when entering the filtration components, thereby reducing the maintenance and replacement frequency of the filtration components. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the internal structure of the processing box in this application; Figure 3 This is a schematic diagram of the processing tank structure of this application; Figure 4 This is a schematic diagram of the cone-shaped sludge collection plate without installation according to this application.

[0012] The diagram shows the following markings: 1. Vacuum dryer; 2. Exhaust pipe; 3. Processing chamber; 4. Vacuum pump; 5. Gas duct; 6. Processing tank; 7. Flow buffer; 8. Connecting pipe; 9. Condenser separator; 10. Multi-stage filtration chamber; 11. Baffle; 12. Hollow exhaust pipe; 13. Conical sludge collection plate; 14. Sludge drain pipe; 15. Liquid drain pipe; 16. Tempered glass; 17. Liquid injection pipe. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0014] refer to Figures 1-4 As shown, a vacuum dryer exhaust gas treatment structure with multiple filtration includes a vacuum dryer 1, an exhaust gas discharge pipe 2 fixedly installed on the top surface of the vacuum dryer 1, a treatment chamber 3 fixedly installed on the left side of the vacuum dryer 1, a vacuum pump 4 fixedly installed on the top surface of the treatment chamber 3, the inlet end of the vacuum pump 4 being fixed to the top surface of the exhaust gas discharge pipe 2, and a guide pipe 5 fixedly installed on the exhaust end of the vacuum pump 4, one end of the guide pipe 5 extending into the interior of the treatment chamber 3, and a purification treatment liquid being provided inside the treatment chamber 3; the purification treatment liquid can be water or an alkaline solution, etc. Through the vacuum pump 4, the exhaust gas generated by the vacuum dryer 1 is easily introduced into the purification treatment liquid in the treatment chamber 3 through the exhaust gas discharge pipe 2 and the guide pipe 5. The liquid can be used to pre-adsorb and settle particulate impurities such as dust in the exhaust gas, preventing dust from directly entering the subsequent filter components and causing blockage, reducing the frequency of cleaning and replacement of filter materials. At the same time, liquid purification can pre-dissolve some soluble harmful components, improving the efficiency of subsequent treatment.

[0015] refer to Figures 1-4 As shown, a tempered glass 16 is fixedly installed on the side of the treatment chamber 3 away from the vacuum dryer 1, and a liquid injection pipe 17 is fixedly installed on the side of the treatment chamber 3 away from the treatment tank 6. The liquid injection pipe 17 is connected to an external circulating liquid supply pipe. The tempered glass 16 allows operators to visually observe the liquid level and contamination status of the purification liquid inside the treatment chamber 3, and to replenish or replace it in a timely manner. The liquid injection pipe 17, connected to the external circulating liquid supply pipe, enables continuous replenishment or circulation of the purification liquid, ensuring the stability of the liquid purification effect without frequent manual addition, thus reducing the amount of manual operation.

[0016] refer to Figures 1-4As shown, a conical sludge collection plate 13 is fixedly installed near the bottom inside the treatment chamber 3, and a sewage pipe 14 is fixedly installed at the bottom of the treatment chamber 3. An electrically controlled valve is fixedly installed on the outer surface of the sewage pipe 14. The conical sludge collection plate 13 facilitates the collection of dust and other impurities settled in the exhaust gas to the bottom of the treatment chamber 3 for centralized cleaning. The sewage pipe 14, in conjunction with the electrically controlled valve, allows for the rapid discharge of deposited sludge through remote control. This convenient operation avoids the loss of large amounts of treatment liquid, maintains the cleanliness of the internal environment of the treatment chamber 3, and ensures the continuity of the purification effect.

[0017] refer to Figures 1-4 As shown, a partition 11 is fixedly installed near the top inside the treatment chamber 3. Multiple hollow exhaust pipes 12 are fixedly installed through the top surface of the partition 11. A treatment tank 6 is fixedly installed on one side of the air guide pipe 5. A drain pipe 15 is fixedly installed on the bottom surface of the treatment tank 6. A sealing end cap is threaded to the bottom end of the drain pipe 15. The partition 11 and the hollow exhaust pipes 12 can guide and buffer the exhaust gas after liquid purification, so that the exhaust gas is evenly distributed before entering the next treatment stage. The treatment tank 6 can further treat the exhaust gas. The drain pipe 15 and the sealing end cap facilitate the discharge of the accumulated liquid inside the treatment tank 6, making maintenance convenient.

[0018] refer to Figures 1-4 As shown, a flow-damping baffle 7 is fixedly installed near the center inside the treatment tank 6. A connecting pipe 8 is fixedly installed on the outer surface of the treatment tank 6. A condenser separator 9 is fixedly installed at the end of the connecting pipe 8 away from the treatment tank 6. A multi-stage filtration chamber 10 is provided on one side of the vacuum dryer 1. The exhaust end of the condenser separator 9 is fixed to one side of the multi-stage filtration chamber 10. The multi-stage filtration chamber 10 is equipped with multiple filtration components such as filter plates, activated carbon plates, and fine filter membranes, which can perform multiple filtrations on the exhaust gas. A large fan is installed inside the multi-stage filtration chamber 10, which allows the exhaust gas purified by liquid filtration inside the treatment tank 3 to enter the multi-stage filtration chamber. Inside the treatment tank 6, the slow-flow baffle 7 extends the residence time of the exhaust gas in the treatment tank 6, improving the treatment effect. The condenser separator 9 can condense and recover condensable components (such as solvent vapor) in the exhaust gas, realizing resource reuse. The filter plates, activated carbon plates and fine filter membranes in the multi-stage filtration box 10 can deeply purify the exhaust gas and remove residual harmful components. The large fan provides power for the exhaust gas flow, ensuring that the exhaust gas can pass smoothly through each treatment stage. At the same time, since most of the dust has been removed by the liquid purification in the early stage, the clogging problem of the multi-stage filtration components is effectively alleviated, reducing the frequency of cleaning and replacement and lowering maintenance costs.

[0019] The implementation principle of the exhaust gas treatment structure of a vacuum dryer with multiple filtration in this application is as follows: During normal operation, the exhaust gas generated by the vacuum dryer 1 enters the treatment chamber 3 through the exhaust gas discharge pipe 2 and the air guide pipe 5 under the action of the vacuum pump 4. At this time, the exhaust gas entering the treatment chamber 3 first comes into contact with the purification liquid. The dust and other particulate impurities in the exhaust gas are adsorbed and settled by the liquid, and some soluble harmful components are dissolved. At this time, the preliminarily purified exhaust gas enters the upper part of the treatment chamber 3 through the exhaust hollow pipe 12 on the partition 11, and then enters the treatment tank 6, where it passes through the slow flow partition 7. After being fully treated by the action of the liquid, the exhaust gas enters the condenser separator 9 through the connecting pipe 8, where the condensable components are separated. Then, the exhaust gas enters the multi-stage filtration chamber 10, where, under the action of the fan, it passes through multiple filtration components such as filter plates, activated carbon plates, and fine filter membranes in sequence to further remove residual harmful components. This device can effectively achieve high-efficiency purification of exhaust gas through the combined action of liquid purification, condensation separation, and multi-stage filtration. Since most of the dust has been removed in the early stage, the exhaust gas is less likely to cause blockage when entering the filtration components, thereby reducing the frequency of maintenance and replacement of the filtration components and lowering maintenance costs.

[0020] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A vacuum drying machine tail gas treatment structure with multiple filtering, comprising a vacuum drying machine (1), characterized in that: The top surface of the vacuum dryer (1) is fixedly equipped with a tail gas discharge pipe (2). A processing chamber (3) is fixedly installed on the left side of the vacuum dryer (1). A vacuum pump (4) is fixedly installed on the top surface of the processing chamber (3). The inlet end of the vacuum pump (4) is fixed to the top surface of the tail gas discharge pipe (2). A guide pipe (5) is fixedly installed on the exhaust end of the vacuum pump (4). One end of the guide pipe (5) extends into the interior of the processing chamber (3). The interior of the processing chamber (3) is equipped with... There is a purification liquid. A treatment tank (6) is fixedly installed on one side of the gas guide pipe (5). A flow-slowing baffle (7) is fixedly installed inside the treatment tank (6) near the middle. A connecting pipe (8) is fixedly installed on the outer surface of the treatment tank (6). A condenser separator (9) is fixedly installed at the end of the connecting pipe (8) away from the treatment tank (6). A multi-filter box (10) is provided on one side of the vacuum dryer (1). The exhaust end of the condenser separator (9) is fixed to one side of the multi-filter box (10).

2. The vacuum drying machine exhaust treatment structure with multiple filtration according to claim 1, characterized in that: The processing box (3) has a partition (11) fixedly installed near the top inside, and multiple hollow exhaust pipes (12) are fixedly installed through the top surface of the partition (11).

3. The vacuum drying machine exhaust treatment structure with multiple filtration of claim 1, wherein: A conical sludge collection plate (13) is fixedly installed inside the treatment box (3) near the bottom. A sewage pipe (14) is fixedly installed at the bottom of the treatment box (3). An electrically controlled valve is fixedly installed on the outer surface of the sewage pipe (14).

4. The vacuum drying machine exhaust treatment structure having multiple filtration of claim 1, wherein: The bottom surface of the treatment tank (6) is fixedly installed with a drain pipe (15), and the bottom end of the drain pipe (15) is threadedly connected with a sealing end cap.

5. The vacuum drying machine exhaust treatment structure having multiple filtration of claim 1, wherein: Tempered glass (16) is fixedly installed on the side of the processing box (3) away from the vacuum dryer (1), and a liquid injection pipe (17) is fixedly installed on the side of the processing box (3) away from the processing tank (6). The liquid injection pipe (17) is connected to an external circulating liquid supply pipe.

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