A flame retardant production apparatus

Abstract

The utility model relates to the technical field of flame retardant production, and disclose a kind of flame retardant production equipment, including waste gas treatment tank, waste gas treatment tank inside is divided into two or more processing bin by the partition plate being set along front-back direction, each processing bin is provided with lye adding port in left side upper end, and is provided with lye replacement port in left side lower end, each processing bin is provided with outlet gas electromagnetic diaphragm pump in right side upper end, and is provided with inlet gas electromagnetic diaphragm pump in right side lower end, the most front side's inlet gas electromagnetic diaphragm pump is connected with gas booster pump, and each front side's outlet gas electromagnetic diaphragm pump is connected with rear side's inlet gas electromagnetic diaphragm pump, and the last side's outlet gas electromagnetic diaphragm pump is connected with exhaust pipe, and the last side's processing bin is provided with pH sensor on top surface. By setting partition plate to divide independent processing bin, by inlet gas electromagnetic diaphragm pump and outlet gas electromagnetic diaphragm pump, the series connection of front and back processing bin is realized, let waste gas be in turn to come over multiple lye absorption, and total purification efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of flame retardant production technology, specifically to a flame retardant production equipment. Background Technology

[0002] The production process of flame retardants, including reactions such as diazotization, hydrolysis, acylation, and condensation, generates waste gases containing acidic pollutants such as HCl, NO, and SO2. Direct emission of these acidic waste gases can severely pollute the atmosphere and affect air quality. Alkaline washing, as an effective waste gas treatment technology, neutralizes acidic waste gases with an alkaline solution, converting the acidic components into salts. This effectively removes acidic pollutants from the waste gases, significantly reducing acid gas emissions, preventing acid rain formation, and meeting environmental regulations. Furthermore, the generated salts can be further processed and recycled, improving economic efficiency.

[0003] When treating acidic waste gas, traditional waste gas treatment boxes, being single-unit structures, only allow for gas-liquid mixing and preliminary treatment within a single chamber. This independent alkali absorption unit can only achieve a single gas-liquid contact and neutralization reaction. For acidic waste gas with slightly higher concentrations, the gas-liquid contact efficiency is low, and the reaction may be incomplete, leading to incomplete neutralization. Incompletely neutralized acidic waste gas remains highly corrosive, causing continuous corrosion to downstream equipment in the treatment system, severely damaging the surrounding environment, and endangering the health of operators and those nearby. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a flame retardant production equipment that can perform multi-round progressive purification of the waste gas generated during the production process, thereby improving the purification rate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flame retardant production equipment, including a waste gas treatment box. The waste gas treatment box is divided into two or more treatment chambers by partitions arranged in the front-to-back direction. Each treatment chamber has an alkali solution addition port at the upper left end and an alkali solution replacement port at the lower left end. Each treatment chamber has an exhaust electromagnetic diaphragm pump at the upper right end and an intake electromagnetic diaphragm pump at the lower right end. The foremost intake electromagnetic diaphragm pump is connected to a gas booster pump. Each foremost exhaust electromagnetic diaphragm pump is connected to a rear intake electromagnetic diaphragm pump. The rearmost exhaust electromagnetic diaphragm pump is connected to an exhaust pipe. The rearmost treatment chamber has an acid-base sensor on its top surface.

[0006] Furthermore, a stirring motor is installed in the middle of the top surface of each processing chamber, and a stirring rod connected to the stirring motor is installed inside the processing chamber, with stirring blades installed on the stirring rod.

[0007] Furthermore, two stirring blades are provided on the stirring rod.

[0008] Furthermore, the exhaust gas treatment box is equipped with a liquid level observation window below the alkali solution addition port.

[0009] Furthermore, a red line indicating the liquid level is set in the middle of the liquid level observation window.

[0010] Furthermore, the intake electromagnetic diaphragm pump is equipped with a transfer valve inside the treatment chamber, and three treatment pipes are connected to the transfer valve, with the length of the three treatment pipes increasing sequentially from left to right.

[0011] Furthermore, the outlet electromagnetic diaphragm pump has an outlet end marking on its outer side, and the inlet electromagnetic diaphragm pump has an inlet end marking on its outer side.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The exhaust gas treatment box is divided into independent treatment chambers by partitions, and the inlet and outlet electromagnetic diaphragm pumps connect the front and rear treatment chambers in series, requiring the exhaust gas to undergo multiple alkaline absorption processes, forming a progressive purification and significantly improving the overall purification efficiency. A stirring motor, stirring rod, and stirring blades are incorporated; the stirring blades break the static equilibrium of the alkaline solution, creating a dynamic flow field that cuts and disperses exhaust gas bubbles, greatly increasing the gas-liquid contact area and contact time. A liquid level observation window allows for direct monitoring of the remaining alkaline solution in each treatment chamber. A red line indicates the correct alkaline solution level when adding or replacing it, preventing excessive liquid levels from causing alkaline contamination during exhaust. The inlet electromagnetic diaphragm pump connects to three treatment pipes of increasing length via a transfer valve, allowing gas to enter from different depths within the alkaline solution, expanding the gas-liquid contact area and improving reaction sufficiency. Indicators at the outlet and inlet ends quickly distinguish the pipeline direction, reducing the risk of misoperation during installation and maintenance and improving equipment usability. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the entire utility model; Figure 2 This is a three-dimensional structural diagram of the present invention from another perspective; Figure 3 This is a top view of the overall top surface of this utility model after it has been cut open. Figure 4 This is a top view of the overall front section of this utility model.

[0014] In the diagram: 1. Waste gas treatment box; 2. Baffle plate; 3. Treatment chamber; 4. Alkali solution addition port; 5. Alkali solution replacement port; 6. Outlet electromagnetic diaphragm pump; 7. Inlet electromagnetic diaphragm pump; 8. Gas booster pump; 9. Exhaust pipe; 10. Stirring motor; 11. Stirring rod; 12. Stirring blade; 13. Liquid level observation window; 14. Liquid level red line; 15. Transfer valve; 16. Treatment pipe; 17. Outlet end indicator; 18. Inlet end indicator; 19. pH sensor. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] like Figures 1 to 4 As shown, a flame retardant production equipment includes an exhaust gas treatment box 1. The interior of the exhaust gas treatment box 1 is divided into two or more treatment chambers 3 by partitions 2 arranged in the front-to-back direction. Each treatment chamber 3 has an alkali solution addition port 4 at the upper left end and an alkali solution replacement port 5 at the lower left end. Each treatment chamber 3 has an exhaust electromagnetic diaphragm pump 6 at the upper right end and an intake electromagnetic diaphragm pump 7 at the lower right end. The foremost intake electromagnetic diaphragm pump 7 is connected to a gas booster pump 8. Each foremost exhaust electromagnetic diaphragm pump 6 is connected to a rearward intake electromagnetic diaphragm pump 7. The rearmost exhaust electromagnetic diaphragm pump 6 is connected to an exhaust pipe 9. The rearmost treatment chamber 3 has an acid-base sensor 19 on its top surface.

[0017] like Figure 1 As shown, the main improvement of this utility model lies in its ability to perform multi-stage progressive purification of waste gas generated during the production process, such as... Figures 1 to 4As shown, the flame retardant production equipment of this utility model preferably has four treatment chambers 3. When waste gas needs to be treated, an alkaline solution of appropriate concentration is first added to each treatment chamber 3 through the alkaline solution addition port 4, and the liquid level observation window 13 and the liquid level red line 14 are used to ensure that the amount of alkaline solution added is appropriate. Subsequently, the acidic waste gas generated by flame retardant production is first pressurized by the gas booster pump 8 and sent into the first treatment chamber 3 by the inlet electromagnetic diaphragm pump 7. The inlet end is connected to three treatment pipes 16 of increasing length through the transfer valve 15, and the gas enters from different positions of the alkaline solution, greatly expanding the contact area with the alkaline solution. At the same time, the stirring motor 10 on the top surface of the treatment chamber 3 drives the stirring rod 11 and stirring blade 12 to rotate, forcibly stirring the alkaline solution to form a dynamic flow field, cutting and dispersing the gas bubbles, avoiding reaction dead zones, and improving the neutralization reaction efficiency. The treated gas is pumped through the exhaust electromagnetic diaphragm pump 6 at the upper right side of the chamber to the intake electromagnetic diaphragm pump 7 of the next-stage treatment chamber 3, thus completing the progressive purification of the remaining treatment chambers 3. Each stage enhances the reaction through the aforementioned stirring and multi-depth intake structure. During the treatment process, the amount of alkali in each treatment chamber 3 is monitored through the liquid level observation window 13 and the liquid level red line 14 to ensure that the liquid level is within a reasonable range. If the alkali is insufficient, it is replenished through the alkali addition port 4, and replaced through the alkali replacement port 5 when it fails. Finally, the gas purified through the four stages will be discharged into the exhaust pipe 9 by the exhaust electromagnetic diaphragm pump 6 at the last side under the real-time monitoring of the pH sensor 19.

[0018] like Figures 1 to 4 As shown, a stirring motor 10 is installed in the middle of the top surface of each processing chamber 3, and a stirring rod 11 connected to the stirring motor 10 is installed inside the processing chamber 3. Stirring blades 12 are installed on the stirring rod 11.

[0019] Specifically, during the waste gas treatment process, the stirring motor 10 starts working, driving the stirring rod 11 and stirring blades 12 to rotate and stir the alkaline solution in the treatment chamber 3. This forcibly breaks the static equilibrium of the alkaline solution, causing it to form a dynamic flow field. At the same time, this active stirring can cut and disperse the waste gas bubbles into smaller bubbles, significantly increasing the gas-liquid contact area and extending the gas-liquid contact time, thereby improving treatment efficiency.

[0020] like Figure 4 As shown, there are two stirring blades 12 on the stirring rod 11.

[0021] Specifically, by setting two stirring blades 12 on the stirring rod 11, it is possible to cover alkaline solution areas at different heights within the treatment chamber 3, ensuring uniform disturbance of the alkaline solution within the chamber and avoiding insufficient local mixing caused by the limited stirring range of a single blade.

[0022] like Figure 2 and Figure 4 As shown, the exhaust gas treatment box 1 is equipped with a liquid level observation window 13 below the alkali addition port 4.

[0023] Specifically, by setting up a liquid level observation window 13 below the alkali addition port 4, operators can observe the alkali liquid level in each treatment chamber 3 in real time, accurately determine whether the reagent needs to be replenished, and avoid the risk of direct discharge of waste gas due to reagent depletion.

[0024] like Figure 2 As shown, a red liquid level line 14 is set in the middle of the liquid level observation window 13.

[0025] Specifically, by setting a red line 14 in the middle of the liquid level observation window 13, the optimal capacity range of the alkali solution is clearly defined: when alkali solution needs to be added or the liquid level is below the red line 14, a prompt is made to replenish it in time, avoiding a decrease in waste gas treatment efficiency due to insufficient alkali solution. This quantitative indication allows operators to quickly determine whether the amount of alkali solution is appropriate without relying on experience, reducing human error.

[0026] like Figure 3 and Figure 4 As shown, the intake electromagnetic diaphragm pump 7 is equipped with a transfer valve 15 inside the processing chamber 3. Three processing pipes 16 are connected to the transfer valve 15, and the lengths of the three processing pipes 16 increase sequentially from left to right.

[0027] Specifically, by installing a transfer valve 15 on the output end of the intake electromagnetic diaphragm pump 7, and connecting three treatment pipes 16 to the transfer valve 15, gas diversion is achieved. The three treatment pipes 16 increase in length from left to right, which means that the gas can enter the treatment chamber 3 from different positions of the alkaline solution. The short pipe corresponds to the right side, the medium and long pipe corresponds to the middle, and the longest pipe corresponds to the left side. This design allows the gas to form a partitioned diffusion in the alkaline solution, which can make the waste gas and alkaline solution mix and react more evenly.

[0028] like Figure 1 and Figure 4 As shown, the outer side of the outlet electromagnetic diaphragm pump 6 is marked with an outlet end 17, and the outer side of the inlet electromagnetic diaphragm pump 7 is marked with an inlet end 18.

[0029] Specifically, by setting an outlet end mark 17 on the outside of the outlet electromagnetic diaphragm pump 6 and an inlet end mark 18 on the outside of the inlet electromagnetic diaphragm pump 7, the direction of the marks is clearly defined, which can quickly distinguish the gas inflow and outflow interfaces of each stage chamber and avoid reversed pipe connections during installation. During maintenance, operators can also quickly locate the airflow path through the marks, reducing troubleshooting time and lowering the risk of misoperation.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flame retardant production equipment, comprising an exhaust gas treatment box (1), characterized in that, The interior of the waste gas treatment box (1) is divided into two or more treatment chambers (3) by partitions (2) arranged in the front-to-back direction. Each treatment chamber (3) has an alkali addition port (4) at the upper left end and an alkali replacement port (5) at the lower left end. Each treatment chamber (3) has an exhaust electromagnetic diaphragm pump (6) at the upper right end and an intake electromagnetic diaphragm pump (7) at the lower right end. The intake electromagnetic diaphragm pump (7) at the front end is connected to a gas booster pump (8). Each exhaust electromagnetic diaphragm pump (6) at the front end is connected to the intake electromagnetic diaphragm pump (7) at the rear end. The exhaust electromagnetic diaphragm pump (6) at the rear end is connected to an exhaust pipe (9). The treatment chamber (3) at the rear end has an acid-base sensor (19) on its top surface.

2. The flame retardant production equipment according to claim 1, characterized in that, Each processing chamber (3) is equipped with a stirring motor (10) in the middle of its top surface. Inside the processing chamber (3) is a stirring rod (11) connected to the stirring motor (10), and stirring blades (12) are provided on the stirring rod (11).

3. The flame retardant production equipment according to claim 2, characterized in that, Two stirring blades (12) are provided on the stirring rod (11).

4. A flame retardant production equipment according to claim 1, 2, or 3, characterized in that, The waste gas treatment box (1) is provided with a liquid level observation window (13) below the alkaline solution addition port (4).

5. The flame retardant production equipment according to claim 4, characterized in that, A red line (14) for liquid level observation is set in the middle of the liquid level observation window (13).

6. A flame retardant production equipment according to claim 1, 2, 3 or 5, characterized in that, The intake electromagnetic diaphragm pump (7) has a transfer valve (15) installed inside the processing chamber (3). The transfer valve (15) is connected to three processing pipes (16), and the length of the three processing pipes (16) increases sequentially from left to right.

7. The flame retardant production equipment according to claim 4, characterized in that, The intake electromagnetic diaphragm pump (7) has a transfer valve (15) installed inside the processing chamber (3). The transfer valve (15) is connected to three processing pipes (16), and the length of the three processing pipes (16) increases sequentially from left to right.

8. A flame retardant production equipment according to claim 1, 2, 3, 5 or 7, characterized in that, The outlet electromagnetic diaphragm pump (6) has an outlet end mark (17) on its outside, and the inlet electromagnetic diaphragm pump (7) has an inlet end mark (18) on its outside.

9. The flame retardant production equipment according to claim 4, characterized in that, The outlet electromagnetic diaphragm pump (6) has an outlet end mark (17) on its outside, and the inlet electromagnetic diaphragm pump (7) has an inlet end mark (18) on its outside.

10. The flame retardant production equipment according to claim 6, characterized in that, The outlet electromagnetic diaphragm pump (6) has an outlet end mark (17) on its outside, and the inlet electromagnetic diaphragm pump (7) has an inlet end mark (18) on its outside.

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