Chemical waste gas collecting and treating device

Abstract

The utility model relates to the technical field of waste gas treatment, in particular to a chemical waste gas collection and treatment device which comprises a waste gas treatment base box, a top cover is fixedly mounted at the top of the waste gas treatment base box, a base table is fixedly mounted at the bottom of the waste gas treatment base box, and a fan is mounted at the right end of the base table. According to the utility model, the defects in the prior art are overcome, the electromagnetic valve is selectively opened according to the acidity and alkalinity of harmful substances contained in the waste gas, so that the waste gas can enter a solution which reacts with the waste gas, and gaseous pollutants are selectively removed from the waste gas by utilizing a proper absorption solution so as to eliminate pollution; waste gas subjected to solution absorption treatment can be conveyed into the exhaust barrel along the gas conveying connecting pipe, the waste gas entering the exhaust barrel can vertically flow upwards along the exhaust barrel, the waste gas can enter the sleeve through a gas vent in the bottom of the sleeve, and the waste gas can be absorbed into the sleeve through a second absorption cavity in the sleeve. Pollutants are attached to the surface of the activated carbon.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a chemical waste gas collection and treatment device. Background Art

[0002] Chemical waste gas refers to the toxic and harmful gases discharged by chemical plants during the chemical production process. These waste gases often contain a variety of pollutants, have complex physical and chemical properties, and their toxicity varies. These waste gases will have a serious impact on the environment and human health;

[0003] The composition and properties of chemical waste gas vary with different chemical production industries. The treatment methods of chemical waste gas vary with the composition and properties. The existing waste gas collection and treatment methods use a single method to treat waste gas. The single method of treating waste gas may cause some components in the waste gas to be unable to be completely removed by a single treatment method, resulting in low treatment efficiency.

[0004] In order to solve the above-mentioned problems, a chemical waste gas collection and treatment device is proposed. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a chemical waste gas collection and treatment device, which overcomes the deficiencies of the prior art and solves the problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a chemical waste gas collection and treatment device, including a waste gas treatment base box, a top cover is fixedly installed on the top of the waste gas treatment base box, a base is fixedly installed on the bottom of the waste gas treatment base box, a fan is installed on the right end of the base, an adsorption chamber and a waste gas water washing chamber are respectively formed at the left and right ends of the waste gas treatment base box, an absorption chamber 2 and an absorption chamber 1 are respectively formed in the middle of the waste gas treatment base box, a waste gas treatment mechanism is provided inside the adsorption chamber, and an exhaust pipe is fixedly installed on the top of the adsorption chamber.

[0007] The waste gas generated in the chemical production process can be discharged into the waste gas treatment base box through the fan for storage and treatment. The waste gas entering the waste gas treatment base box can first enter the waste gas water washing chamber to perform preliminary water washing treatment on the waste gas. Subsequently, the waste gas is transported to absorption chamber one or absorption chamber two according to the gaseous pollutants contained in the waste gas, and appropriate absorbents are used to selectively remove gaseous pollutants from the waste gas to eliminate pollution. Finally, the waste gas enters the adsorption chamber, and is further treated by the waste gas treatment mechanism inside the adsorption chamber, and finally discharged through the exhaust pipe.

[0008] As a preferred technical solution of the utility model, a support foot is fixedly installed on the bottom of the base, and a mounting hole is opened on the support foot.

[0009] The support legs can provide support for the base, and the mounting holes on the support legs can be used in conjunction with bolts to be fixedly connected to a fixing object.

[0010] As a preferred technical solution of the utility model, the air inlet of the fan is equipped with an exhaust gas conveying duct, and the air outlet of the fan is connected to an output air duct, which extends from the end away from the fan through the top cover to the interior of the exhaust gas water washing chamber.

[0011] The exhaust gas conveying duct can be used for conveying exhaust gas, and the fan can push the exhaust gas to the output air duct for continuous conveying. The exhaust gas conveyed along the output air duct can enter the interior of the exhaust gas water washing chamber, and the exhaust gas can come into contact with the water inside the exhaust gas water washing chamber. The solid particulate matter carried in the exhaust gas can be separated from the exhaust gas inside the exhaust gas water washing chamber, and the exhaust gas after water washing can continue to be conveyed through the three-way pipe on the top of the exhaust gas water washing chamber.

[0012] As a preferred technical solution of the utility model, the upper half of the waste gas water washing chamber is fixedly connected with a water inlet pipe, the lower half of the waste gas water washing chamber is fixedly connected with a drain pipe, the absorption chamber one and the absorption chamber two are fixedly connected with a liquid inlet pipe and a liquid drain pipe on the side away from each other, and the water inlet pipe, the drain pipe, the liquid inlet pipe and the liquid drain pipe are all equipped with switch valves.

[0013] Water can be injected into the exhaust gas water washing chamber through the water inlet pipe. When the water inside the exhaust gas water washing chamber needs to be discharged and cleaned, it can be drained through the drain pipe. A solution that reacts with gaseous pollutants contained in the exhaust gas can be injected into the absorption chamber one and the absorption chamber two through the liquid inlet pipe. The solution after the reaction inside the absorption chamber one and the absorption chamber two can be discharged through the liquid drain pipe for subsequent treatment and use.

[0014] As a preferred technical solution of the utility model, a three-way pipe is fixedly installed on the top of the waste gas water washing chamber. The two ends of the three-way pipe away from the waste gas water washing chamber extend to the inside of absorption chamber one and absorption chamber two respectively, and both are equipped with solenoid valves.

[0015] The waste gas washed with water in the waste gas washing chamber can enter the absorption chamber one or the absorption chamber two through the three-way pipe for absorption and treatment of harmful substances. According to the acidity and alkalinity of the harmful substances contained in the waste gas, the solenoid valve is opened to allow the waste gas to enter the solution that reacts with it, and the gaseous pollutants are selectively removed from the waste gas using appropriate absorption solutions to eliminate pollution.

[0016] As a preferred technical solution of the utility model, the interior of the waste gas water washing chamber is used to store clean water, the interior of the absorption chamber 1 is used to store acidic solution, and the interior of the absorption chamber 2 is used to store alkaline solution.

[0017] As a preferred technical solution of the utility model, the exhaust gas treatment mechanism includes an exhaust pipe fixedly installed on the bottom surface of the adsorption chamber, an annular slide rail fixedly installed on the inner surface of the exhaust pipe and a sleeve slidably connected to the top of the annular slide rail. A baffle is fixedly installed on the bottom of the annular slide rail, and a pair of air vents are symmetrically opened at the bottom of the sleeve. The air vents are adapted to the size and position of the baffle structure. A partition plate is fixedly installed inside the sleeve, and the partition plate divides the interior of the sleeve into two cavities. Absorption chamber 2 is arranged inside the two cavities.

[0018] The exhaust gas entering the exhaust pipe can flow vertically upward along the exhaust pipe, and the exhaust gas can enter the sleeve through the vent at the bottom of the sleeve. With the help of the strong adsorption ability of the absorption chamber 2 inside the sleeve for pollutants, the pollutants are attached to the surface of the activated carbon, so that the pollutants in the exhaust gas are adsorbed and removed. The ability of activated carbon to adsorb harmful substances is limited. If a large amount of harmful substances needs to be treated, the activated carbon needs to be replaced regularly. When replacing the absorption chamber 2, the sleeve can be rotated to rotate the absorption chamber 2 located above the baffle to above the vent, thereby realizing the rapid replacement of the absorption chamber 2, and the absorption chamber 2 rotated to the baffle can be replaced again.

[0019] As a preferred technical solution of the utility model, the tops of the absorption chambers 1 and 2 are fixedly connected with gas supply pipes, and the ends of the two gas supply pipes that are away from each other pass through the adsorption chamber and communicate with the exhaust pipe.

[0020] The waste gas treated by solution absorption can be transported to the inside of the exhaust pipe along the gas supply pipe.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] The waste gas after water washing can be continuously transported through the three-way pipe at the top of the waste gas water washing chamber, and the waste gas washed with water inside the waste gas water washing chamber can enter the absorption chamber one or the absorption chamber two through the three-way pipe for absorption treatment of harmful substances. According to the acidity and alkalinity of harmful substances contained in the waste gas, the solenoid valve is opened to allow the waste gas to enter the solution that reacts with the waste gas, and the gaseous pollutants are selectively removed from the waste gas using appropriate absorption solutions to eliminate pollution. The waste gas absorbed by the solution can be transported to the inside of the exhaust pipe along the gas transmission pipe, and the waste gas entering the exhaust pipe can flow vertically upward along the exhaust pipe. The waste gas can enter the inside of the sleeve through the vent at the bottom of the sleeve. With the help of the strong adsorption capacity of the absorption chamber two inside the sleeve for pollutants, the pollutants are attached to the surface of the activated carbon, so that the pollutants in the waste gas are adsorbed and removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional schematic diagram of the utility model Figure 1 ;

[0024] Figure 2 A three-dimensional schematic diagram of the utility model Figure 2 ;

[0025] Figure 3 The partial cross-section diagram of the waste gas treatment base box of the utility model Figure 1 ;

[0026] Figure 4 The partial cross-section diagram of the waste gas treatment base box of the utility model Figure 2 ;

[0027] Figure 5 The partial cross-section diagram of the waste gas treatment base box of the utility model Figure 3 ;

[0028] Figure 6 For the utility model Figure 5 Partial schematic diagram at point A in the middle.

[0029] In the figure: 1. Waste gas treatment base box; 101. Top cover; 2. Base; 201. Support foot; 3. Fan; 301. Waste gas conveying air duct; 302. Output air duct; 4. Waste gas water washing chamber; 401. Water inlet pipe; 402. Drain pipe; 5. Absorption chamber one; 6. Absorption chamber two; 7. Adsorption chamber; 701. Exhaust pipe; 8. Liquid inlet pipe; 801. Liquid discharge pipe; 9. Three-way pipe; 901. Solenoid valve; 10. Gas supply pipe; 11. Exhaust pipe; 1101. Annular slide rail; 1102. Baffle; 1103. Sleeve; 1104. Vent; 1105. Partition plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1-6A chemical waste gas collection and treatment device comprises a waste gas treatment base box 1, a top cover 101 is fixedly installed on the top of the waste gas treatment base box 1, a base 2 is fixedly installed on the bottom of the waste gas treatment base box 1, a fan 3 is installed on the right end of the base 2, an adsorption chamber 7 and a waste gas washing chamber 4 are formed at the left and right ends of the waste gas treatment base box 1, an absorption chamber 2 6 and an absorption chamber 1 5 are formed in the middle of the waste gas treatment base box 1, a waste gas treatment mechanism is arranged inside the adsorption chamber 7, an exhaust pipe 701 is fixedly installed on the top of the adsorption chamber 7, and the waste gas generated in the chemical production process can be discharged through the adsorption chamber 7. The exhaust gas from the fan 3 is discharged into the interior of the exhaust gas treatment base box 1 for storage and treatment. The exhaust gas entering the exhaust gas treatment base box 1 can first enter the interior of the exhaust gas water washing chamber 4 to perform preliminary water washing treatment on the exhaust gas. Subsequently, the exhaust gas is transported to the absorption chamber 1 5 or the absorption chamber 2 6 according to the gaseous pollutants contained in the exhaust gas. Appropriate absorbents are used to selectively remove gaseous pollutants from the exhaust gas to eliminate pollution. Finally, the exhaust gas enters the adsorption chamber 7, and is further treated by the exhaust gas treatment mechanism inside the adsorption chamber 7, and finally discharged from the exhaust pipe 701.

[0032] Specifically, a support foot 201 is fixedly installed at the bottom of the base 2, and a mounting hole is opened on the support foot 201. The support foot 201 can provide support for the base 2, and the mounting hole on the support foot 201 can be used in conjunction with bolts to be fixedly connected to a fixing object.

[0033] Specifically, the air inlet of the fan 3 is equipped with an exhaust gas conveying duct 301, and the air outlet of the fan 3 is connected to an output air duct 302. The output air duct 302 extends from one end of the fan 3 through the top cover 101 to the inside of the exhaust gas washing chamber 4, and can be used for conveying exhaust gas through the exhaust gas conveying duct 301. The fan 3 can push the exhaust gas to be continuously conveyed to the output air duct 302. The exhaust gas conveyed along the output air duct 302 can enter the inside of the exhaust gas washing chamber 4, and the exhaust gas can contact the water inside the exhaust gas washing chamber 4. The solid particulate matter carried in the exhaust gas can be separated from the exhaust gas inside the exhaust gas washing chamber 4, and the exhaust gas after water washing can continue to be conveyed through the three-way pipe 9 at the top of the exhaust gas washing chamber 4.

[0034] Specifically, the upper half of the waste gas water washing chamber 4 is fixedly connected with a water inlet pipe 401, the lower half of the waste gas water washing chamber 4 is fixedly connected with a drain pipe 402, and the absorption chamber 1 5 and the absorption chamber 2 6 are fixedly connected with a liquid inlet pipe 8 and a drain pipe 801 on the side away from each other. The water inlet pipe 401, the drain pipe 402, the liquid inlet pipe 8 and the drain pipe 801 are all equipped with switch valves. Water can be injected into the waste gas water washing chamber 4 through the water inlet pipe 401. When the water in the waste gas water washing chamber 4 needs to be discharged and cleaned, it can be drained through the drain pipe 402. A solution that reacts with gaseous pollutants contained in the waste gas can be injected into the absorption chamber 1 5 and the absorption chamber 2 6 through the liquid inlet pipe 8, and the solution after the reaction in the absorption chamber 1 5 and the absorption chamber 2 6 can be discharged through the drain pipe 801 for subsequent treatment.

[0035] Specifically, a three-way pipe 9 is fixedly installed on the top of the waste gas water washing chamber 4. The two ends of the three-way pipe 9 away from the waste gas water washing chamber 4 extend to the inside of the absorption chamber 1 5 and the absorption chamber 2 6 respectively, and are both equipped with solenoid valves 901. The waste gas washed with water inside the waste gas water washing chamber 4 can enter the absorption chamber 1 5 or the absorption chamber 2 6 through the three-way pipe 9 to absorb and treat harmful substances. According to the acidity and alkalinity of the harmful substances contained in the waste gas, the solenoid valve 901 is opened to allow the waste gas to enter the solution that reacts with the waste gas, and a suitable absorption solution is used to selectively remove gaseous pollutants from the waste gas to eliminate pollution.

[0036] Specifically, the interior of the waste gas washing chamber 4 is used to store clean water, the interior of the absorption chamber 1 5 is used to store an acidic solution, and the interior of the absorption chamber 2 6 is used to store an alkaline solution.

[0037] Specifically, the exhaust gas treatment mechanism includes an exhaust pipe 11 fixedly installed on the bottom surface of the adsorption chamber 7, an annular slide rail 1101 fixedly installed on the inner surface of the exhaust pipe 11 and a sleeve 1103 slidably connected to the top of the annular slide rail 1101, a baffle 1102 is fixedly installed at the bottom of the annular slide rail 1101, a pair of vents 1104 are symmetrically opened at the bottom of the sleeve 1103, the vents 1104 are adapted to the structural size and position of the baffle 1102, a partition plate 1105 is fixedly installed inside the sleeve 1103, the partition plate 1105 divides the inside of the sleeve 1103 into two cavities, and the inside of the two cavities is provided with an absorption chamber 26, and the exhaust gas entering the exhaust pipe 11 can be discharged along the exhaust pipe 11 Flowing vertically upward, the exhaust gas can enter the interior of the sleeve 1103 through the vent 1104 at the bottom of the sleeve 1103. With the help of the internal absorption chamber 26 of the sleeve 1103, which has a strong adsorption capacity for pollutants, the pollutants are attached to the surface of the activated carbon, so that the pollutants in the exhaust gas are adsorbed and removed. The ability of activated carbon to adsorb harmful substances is limited. If a large amount of harmful substances needs to be treated, the activated carbon needs to be replaced regularly. When replacing the absorption chamber 26, the sleeve 1103 can be rotated to rotate the absorption chamber 26 located above the baffle 1102 to above the vent 1104, thereby realizing the rapid replacement of the absorption chamber 26, and the absorption chamber 26 rotated to the baffle 1102 can be replaced again.

[0038] Specifically, the tops of absorption chamber 1 5 and absorption chamber 2 6 are fixedly connected with gas supply pipes 10. The ends of the two gas supply pipes 10 that are away from each other pass through the adsorption chamber 7 and are connected to the exhaust pipe 11. The waste gas that has been absorbed by the solution can be transported along the gas supply pipes 10 to the inside of the exhaust pipe 11.

[0039] Working principle: First, water can be injected into the waste gas washing chamber 4 through the water inlet pipe 401. After appropriate water is injected into the waste gas washing chamber 4, the switch valve on the waste gas washing chamber 4 can be closed. According to the gas pollutants contained in the waste gas, the solution to react and absorb is selected and injected into the absorption chamber 1 5 or the absorption chamber 2 6 through the liquid inlet pipe 8. After the appropriate solution is injected, the switch valve on the liquid inlet pipe 8 is closed. Then, the waste gas can be transported through the waste gas conveying duct 301, and the fan 3 can push the waste gas to the output duct 302. The exhaust gas transported along the output air duct 302 can enter the exhaust gas washing chamber 4, the exhaust gas can contact the water inside the exhaust gas washing chamber 4, the solid particulate matter carried in the exhaust gas can be separated from the exhaust gas inside the exhaust gas washing chamber 4, the washed exhaust gas can be continuously transported through the three-way pipe 9 at the top of the exhaust gas washing chamber 4, the exhaust gas washed inside the exhaust gas washing chamber 4 can enter the absorption chamber 1 5 or the absorption chamber 2 6 through the three-way pipe 9 for absorption treatment of harmful substances, according to the harmful substances contained in the exhaust gas According to the acidity and alkalinity of the substance, the electromagnetic valve 901 is opened so that the waste gas can enter the solution that reacts with the waste gas, and the gaseous pollutants are selectively removed from the waste gas by using an appropriate absorption solution to eliminate the pollution. The waste gas absorbed by the solution can be transported to the inside of the exhaust pipe 11 along the gas transmission pipe 10, and the waste gas entering the exhaust pipe 11 can flow vertically upward along the exhaust pipe 11. The waste gas can enter the inside of the sleeve 1103 through the vent 1104 at the bottom of the sleeve 1103, and the waste gas can be absorbed by the absorption chamber 26 inside the sleeve 1103. It has a strong adsorption capacity for pollutants, and the pollutants are attached to the surface of the activated carbon, so that the pollutants in the exhaust gas are adsorbed and removed. The ability of activated carbon to adsorb harmful substances is limited. If a large amount of harmful substances needs to be treated, the activated carbon needs to be replaced regularly. When replacing the absorption chamber 6, the sleeve 1103 can be rotated to rotate the absorption chamber 6 located above the baffle 1102 to above the vent 1104, thereby realizing the rapid replacement of the absorption chamber 6, and the absorption chamber 6 rotated to the baffle 1102 can be replaced again.

[0040] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0041] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A chemical waste gas collection and treatment device, comprising a waste gas treatment base box (1), characterized in that: A top cover (101) is fixedly installed on the top of the waste gas treatment base box (1), a base (2) is fixedly installed on the bottom of the waste gas treatment base box (1), a fan (3) is arranged and installed on the right end of the base (2), an adsorption chamber (7) and a waste gas water washing chamber (4) are respectively formed at the left and right ends of the waste gas treatment base box (1), an absorption chamber 2 (6) and an absorption chamber 1 (5) are respectively formed in the middle of the waste gas treatment base box (1), a waste gas treatment mechanism is arranged inside the adsorption chamber (7), and an exhaust pipe (701) is fixedly installed on the top of the adsorption chamber (7).

2. A chemical waste gas collection and treatment device according to claim 1, characterized in that: A supporting foot (201) is fixedly mounted on the bottom of the base (2), and a mounting hole is provided on the supporting foot (201).

3. A chemical waste gas collection and treatment device according to claim 1, characterized in that: The air inlet of the fan (3) is provided with an exhaust gas conveying air duct (301), and the air outlet of the fan (3) is connected with an output air duct (302). The end of the output air duct (302) away from the fan (3) passes through the top cover (101) and extends to the interior of the exhaust gas washing chamber (4).

4. A chemical waste gas collection and treatment device according to claim 1, characterized in that: The upper half of the waste gas washing chamber (4) is fixedly connected to a water inlet pipe (401), the lower half of the waste gas washing chamber (4) is fixedly connected to a water discharge pipe (402), the absorption chamber 1 (5) and the absorption chamber 2 (6) are fixedly connected to a liquid inlet pipe (8) and a liquid discharge pipe (801) on the side away from each other, and the water inlet pipe (401), the water discharge pipe (402), the liquid inlet pipe (8) and the liquid discharge pipe (801) are all equipped with switch valves.

5. The chemical waste gas collection and treatment device according to claim 1 is characterized in that: A three-way pipe (9) is fixedly installed on the top of the waste gas water washing chamber (4), and the two ends of the three-way pipe (9) away from the waste gas water washing chamber (4) extend to the inside of absorption chamber 1 (5) and absorption chamber 2 (6) respectively, and both are equipped with solenoid valves (901).

6. The chemical waste gas collection and treatment device according to claim 1, characterized in that: The waste gas washing chamber (4) is used to store clean water, the first absorption chamber (5) is used to store acidic solution, and the second absorption chamber (6) is used to store alkaline solution.

7. The chemical waste gas collection and treatment device according to claim 1 is characterized in that: The exhaust gas treatment mechanism comprises an exhaust pipe (11) fixedly mounted on the inner bottom surface of the adsorption chamber (7), an annular slide rail (1101) fixedly mounted on the inner surface of the exhaust pipe (11), and a sleeve (1103) slidably connected to the top of the annular slide rail (1101).

8. A chemical waste gas collection and treatment device according to claim 7, characterized in that: A baffle (1102) is fixedly mounted on the bottom of the annular slide rail (1101), and a pair of vents (1104) are symmetrically provided on the bottom of the sleeve (1103), wherein the vents (1104) are adapted to the baffle (1102) in terms of structure, size and position.

9. A chemical waste gas collection and treatment device according to claim 7, characterized in that: A partition plate (1105) is fixedly installed inside the sleeve (1103), and the partition plate (1105) divides the inside of the sleeve (1103) into two cavities. The two cavities are each provided with an absorption cavity 2 (6).

10. The chemical waste gas collection and treatment device according to claim 1, characterized in that: The tops of the absorption chamber 1 (5) and the absorption chamber 2 (6) are both fixedly connected with a gas supply pipe (10), and the ends of the two gas supply pipes (10) that are away from each other pass through the adsorption chamber (7) and communicate with the exhaust pipe (11).

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