Waste gas treatment device in brominated flame retardant production process

Abstract

The utility model belongs to the technical field of waste gas treatment, and discloses a waste gas treatment device in a brominated flame retardant production process, which comprises a cooling box, the bottom wall of an inner cavity of the cooling box is an inclined plane, a plurality of ventilation cavities are arranged on the inclined plane, a plurality of branch pipes are arranged in the plurality of ventilation cavities, and the branch pipes are communicated with the ventilation cavities. A dispersion net is installed in an inner cavity of the cooling box, an exhaust channel is installed at the top of the cooling box, and the exhaust channel communicates with the cooling box; a connecting pipe is installed at the end, away from the ventilation cavity, of the branch pipe and communicates with the branch pipe, an air inlet pipe is installed at one end of the connecting pipe and communicates with the connecting pipe, and a first electromagnetic valve is installed on the air inlet pipe. According to the waste gas purification device, waste gas can be conveniently cooled and purified, and volatile organic compounds in the waste gas can be conveniently removed.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a waste gas treatment device in the production process of brominated flame retardants. Background Technology

[0002] The waste gas treatment device in the production process of brominated flame retardants is designed to solve the problem of waste gas emissions during the production of brominated flame retardants. Brominated flame retardants are flame retardants widely used in plastics, electronics, construction and transportation. Their production process generates some harmful gases and VOCs (volatile organic compounds), which need to be treated.

[0003] Currently, waste gas treatment devices consist of two parts: purification equipment and emission monitoring system. However, in practical applications, the inventors have gradually discovered that waste gas carries a large amount of heat before treatment, which affects the filtration effect. Therefore, we propose a waste gas treatment device for the production process of brominated flame retardants. Utility Model Content

[0004] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0005] Specifically, the technical problem to be solved by this utility model is to provide a waste gas treatment device in the production process of brominated flame retardants, so as to solve the technical problem that the waste gas generated in the current brominated flame retardant production process carries a large amount of heat before treatment, which affects the filtration effect.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A waste gas treatment device for the production process of brominated flame retardants includes a cooling box. The bottom wall of the inner cavity of the cooling box is inclined, and multiple ventilation chambers are formed on the inclined surface. Multiple branch pipes are installed in the multiple ventilation chambers and are connected to the ventilation chambers. A dispersion net is installed in the inner cavity of the cooling box, and an exhaust channel is installed on the top of the cooling box and is connected to the cooling box.

[0008] A connecting pipe is installed at the end of the branch pipe away from the ventilation chamber, and the connecting pipe is connected to the branch pipe. An air inlet pipe is installed at one end of the connecting pipe, and the air inlet pipe is connected to the connecting pipe. A first solenoid valve is installed on the air inlet pipe.

[0009] As an improved technical solution, multiple ventilation chambers are arranged at equal intervals along the length / width direction of the cooling box, and the depth of the ventilation chambers is arranged from deep to shallow / from shallow to deep.

[0010] As an improved technical solution, multiple branch pipes are arranged at equal intervals along the length / width direction of the cooling box, and each branch pipe corresponds to a ventilation cavity.

[0011] As an improved technical solution, the dispersing net has dispersing holes, and the dispersing holes are equidistantly arranged along the length and width directions of the dispersing net.

[0012] As an improved technical solution, an adsorption cylinder is detachably installed at the end of the exhaust channel away from the cooling box, and the adsorption cylinder is connected to the exhaust channel, and an adsorption layer structure is installed inside the adsorption cylinder;

[0013] An exhaust pipe is detachably installed at the end of the adsorption cylinder away from the exhaust channel, and the exhaust pipe is connected to the adsorption cylinder.

[0014] As an improved technical solution, the adsorption layered structure includes zeolite, graphene, activated alumina and activated carbon, and the zeolite, graphene, activated alumina and activated carbon are arranged from low to high along the depth of the adsorption cylinder, and the activated carbon has a porous structure.

[0015] As an improved technical solution, a water inlet pipe is fixedly installed on the top of the cooling box, and the water inlet pipe is connected to the cooling box. A second solenoid valve is installed on the water inlet pipe.

[0016] As an improved technical solution, a drain pipe is fixedly installed at the bottom of the cooling box, and the drain pipe is connected to the cooling box. The drain pipe is installed at the lowest point of the inclined plane, and a third solenoid valve is installed on the drain pipe.

[0017] After adopting the above technical solution, the beneficial effects of this utility model are:

[0018] 1. This utility model involves injecting cooling water into a cooling box through the inner cavity of the water inlet pipe, with the water level higher than the height of the dispersing net within the cooling box. At this time, the first and second solenoid valves are open, and the third solenoid valve is closed. Then, waste gas generated during the production of brominated flame retardants is injected into the cooling box through the air inlet pipe. The waste gas enters the cooling box through the inner cavity of the connecting pipe, the inner cavity of the branch pipe, and the ventilation cavity. Simultaneously, the cooling water cools the heat in the waste gas using the principle of heat exchange and removes dust and impurities, thus achieving the effect of cooling and removing impurities from the waste gas. This facilitates the cooling and impurity removal of waste gas generated during the production of brominated flame retardants.

[0019] 2. In this utility model, the cooled and impurity-removed waste gas enters the adsorption cylinder through the exhaust channel. At this time, the zeolite, graphene, activated alumina and activated carbon in the adsorption cylinder adsorb, separate and remove pollutants and volatile organic compounds in the waste gas, so that the volatile organic compounds in the waste gas are removed, while other waste gases can be treated through other processes, thus facilitating the removal of volatile organic compounds in the waste gas. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0021] Figure 1 This is a schematic diagram of the overall structure of the waste gas treatment device in the production process of the brominated flame retardant of this utility model.

[0022] Figure 2 This is a schematic cross-sectional view of the waste gas treatment device in the production process of the brominated flame retardant of this utility model.

[0023] Figure 3 This utility model relates to a waste gas treatment device for the production process of brominated flame retardants. Figure 2 Enlarged structural diagram at point A in the middle.

[0024] Explanation of reference numerals in the attached figures:

[0025] In the diagram: 1. Cooling chamber; 101. Ventilation chamber; 2. Dispersion net; 3. Branch pipe; 4. Connecting pipe; 5. Air inlet pipe; 6. First solenoid valve; 7. Exhaust channel; 8. Adsorption cylinder; 9. Exhaust pipe; 10. Water inlet pipe; 11. Second solenoid valve; 12. Drain pipe; 13. Third solenoid valve. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0029] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0030] Reference Figure 1-3 A waste gas treatment device for the production process of brominated flame retardants is provided. The waste gas treatment device for the production process of brominated flame retardants includes a cooling box 1. The bottom wall of the inner cavity of the cooling box 1 is inclined, and multiple ventilation chambers 101 are opened on the inclined surface. Multiple branch pipes 3 are installed in the multiple ventilation chambers 101 and are connected to the ventilation chambers 101. A dispersion net 2 is installed in the inner cavity of the cooling box 1. An exhaust channel 7 is installed on the top of the cooling box 1 and is connected to the cooling box 1.

[0031] A connecting pipe 4 is installed at the end of the branch pipe 3 away from the ventilation chamber 101, and the connecting pipe 4 is connected to the branch pipe 3. An air inlet pipe 5 is installed at one end of the connecting pipe 4, and the air inlet pipe 5 is connected to the connecting pipe 4. A first solenoid valve 6 is installed on the air inlet pipe 5.

[0032] Reference Figure 2 and Figure 3 Multiple ventilation chambers 101 are arranged at equal intervals along the length / width direction of the cooling box 1, and the depth of the ventilation chambers 101 is arranged from deep to shallow / from shallow to deep, so as to facilitate the entry of exhaust gas into the cooling box 1.

[0033] Reference Figure 2 and Figure 3 Multiple branch pipes 3 are arranged at equal intervals along the length / width direction of the cooling box 1, and each branch pipe 3 corresponds to a ventilation cavity 101, so as to facilitate the installation of the branch pipes 3 on the ventilation cavity 101.

[0034] Reference Figure 2 The dispersing net 2 has dispersing holes, which are equidistantly arranged along the length and width of the dispersing net 2, so that the waste gas can pass through the dispersing net 2 and be dispersed into multiple parts, thereby facilitating the cooling and removal of impurities from the waste gas.

[0035] Reference Figure 1 and Figure 2 An adsorption cylinder 8 is detachably installed at the end of the exhaust channel 7 away from the cooling box 1, and the adsorption cylinder 8 is connected to the exhaust channel 7. An adsorption layer structure (not shown in the figure) is installed inside the adsorption cylinder 8.

[0036] An exhaust pipe 9 is detachably installed at the end of the adsorption cylinder 8 away from the exhaust channel 7, and the exhaust pipe 9 is connected to the adsorption cylinder 8 so that the cooled and impurity-removed waste gas can enter the adsorption cylinder 8 through the exhaust channel 7 and be discharged through the exhaust pipe 9.

[0037] Reference Figure 1 and Figure 2 The adsorption layered structure includes zeolite, graphene, activated alumina, and activated carbon, and the zeolite, graphene, activated alumina, and activated carbon are arranged from low to high along the depth of the adsorption cylinder 8. The activated carbon has a porous structure to facilitate the adsorption and removal of pollutants and volatile organic compounds in the waste gas.

[0038] Reference Figure 1 and Figure 2 A water inlet pipe 10 is fixedly installed on the top of the cooling box 1, and the water inlet pipe 10 is connected to the cooling box 1. A second solenoid valve 11 is installed on the water inlet pipe 10 to inject an appropriate amount of cooling water into the cooling box 1.

[0039] Reference Figure 1 and Figure 2 A drain pipe 12 is fixedly installed at the bottom of the cooling box 1, and the drain pipe 12 is connected to the cooling box 1. The drain pipe 12 is installed at the lowest point of the slope, and a third solenoid valve 13 is installed on the drain pipe 12 to facilitate the discharge of cooling water in the cooling box 1.

[0040] In actual use, cooling water is injected into the cooling box 1 through the inner cavity of the water inlet pipe 10, and the height of the cooling water is higher than the height of the dispersing net 2 in the cooling box 1. At this time, the first solenoid valve 6 and the second solenoid valve 11 are in the open state, and the third solenoid valve 13 is in the closed state. Then, the waste gas generated during the production of brominated flame retardants is injected into the cooling box 1 through the air inlet pipe 5. At this time, the waste gas enters the cooling box 1 through the inner cavity of the connecting pipe 4, the inner cavity of the branch pipe 3, and the ventilation chamber 101. At the same time, the cooling water cools down the heat in the waste gas by means of heat exchange and removes dust and impurities, so as to achieve the effect of cooling and removing impurities from the waste gas, thus facilitating the cooling and removal of impurities from the waste gas generated during the production of brominated flame retardants.

[0041] Meanwhile, the cooled and impurity-removed waste gas enters the adsorption cylinder 8 through the exhaust channel 7. At this time, the zeolite, graphene, activated alumina, and activated carbon in the adsorption cylinder 8 adsorb, separate, and remove pollutants and volatile organic compounds in the waste gas, thus removing volatile organic compounds from the waste gas. Other waste gases can be treated through other processes, which facilitates the removal of volatile organic compounds from the waste gas. This device not only facilitates the cooling and impurity removal of waste gas, but also facilitates the removal of volatile organic compounds from the waste gas.

[0042] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A waste gas treatment device for the production process of brominated flame retardants, characterized in that: The cooling box (1) has an inclined bottom wall and multiple ventilation chambers (101) are provided on the inclined surface. Multiple branch pipes (3) are installed in the multiple ventilation chambers (101) and the branch pipes (3) are connected to the ventilation chambers (101). A dispersion net (2) is installed in the inner cavity of the cooling box (1). An exhaust channel (7) is installed on the top of the cooling box (1) and the exhaust channel (7) is connected to the cooling box (1). A connecting pipe (4) is installed at the end of the branch pipe (3) away from the ventilation chamber (101), and the connecting pipe (4) is connected to the branch pipe (3). An air inlet pipe (5) is installed at one end of the connecting pipe (4), and the air inlet pipe (5) is connected to the connecting pipe (4). A first solenoid valve (6) is installed on the air inlet pipe (5).

2. The waste gas treatment device in the production process of brominated flame retardants according to claim 1, characterized in that: The multiple ventilation chambers (101) are arranged at equal intervals along the length / width direction of the cooling box (1), and the depth of the ventilation chambers (101) is arranged from deep to shallow / from shallow to deep.

3. The waste gas treatment device in the production process of brominated flame retardants according to claim 1, characterized in that: Multiple branch pipes (3) are arranged at equal intervals along the length / width direction of the cooling box (1), and each branch pipe (3) corresponds to a ventilation cavity (101).

4. The waste gas treatment device in the production process of brominated flame retardants according to claim 2, characterized in that: The dispersing net (2) has dispersing holes, and the dispersing holes are equidistantly arranged along the length and width directions of the dispersing net (2).

5. The waste gas treatment device in the production process of brominated flame retardants according to claim 1, characterized in that: An adsorption cylinder (8) is detachably installed at one end of the exhaust channel (7) away from the cooling box (1), and the adsorption cylinder (8) is connected to the exhaust channel (7). An adsorption layer structure is installed inside the adsorption cylinder (8). An exhaust pipe (9) is detachably installed at one end of the adsorption cylinder (8) away from the exhaust channel (7), and the exhaust pipe (9) is connected to the adsorption cylinder (8).

6. The waste gas treatment device in the production process of brominated flame retardants according to claim 5, characterized in that: The adsorption layered structure includes zeolite, graphene, activated alumina and activated carbon, and the zeolite, graphene, activated alumina and activated carbon are arranged from low to high along the depth of the adsorption cylinder (8), and the activated carbon has a porous structure.

7. The waste gas treatment device for the production process of brominated flame retardants according to claim 1, characterized in that: A water inlet pipe (10) is fixedly installed on the top of the cooling box (1), and the water inlet pipe (10) is connected to the cooling box (1). A second solenoid valve (11) is installed on the water inlet pipe (10).

8. The waste gas treatment device in the production process of brominated flame retardants according to claim 1, characterized in that: A drain pipe (12) is fixedly installed at the bottom of the cooling box (1), and the drain pipe (12) is connected to the cooling box (1). The drain pipe (12) is installed at the lowest point of the inclined plane, and a third solenoid valve (13) is installed on the drain pipe (12).

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