Formaldehyde production waste gas treatment device

Abstract

The utility model relates to the technical field of waste gas treatment, and discloses a formaldehyde production waste gas treatment device which comprises an absorption device and further comprises a discharge mechanism, a reaction device and a control device, the side face of the absorption device is fixedly connected with the inner side of the reaction device, and the bottom end of the absorption device is fixedly connected with the top end of the control device. The top end of the discharging mechanism is fixedly connected with the side face of the absorption device, the bottom end of the reaction device is fixedly connected with the top end of the control device, the absorption device comprises a water storage pump and a water conveying pipe, and the top end of the water conveying pipe is fixedly connected with a connecting pipe; the spraying tank and the nozzle are arranged, so that the liquid absorbent can be in full contact with the formaldehyde waste gas, the removal efficiency is improved, the absorbent can be recycled, waste generation is reduced, and certain economic benefits are achieved; by arranging the harmful gas sensor and the water quality sensor, the concentration of discharged gas can be monitored in real time, the system can give an alarm immediately, and therefore measures can be taken in time.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and more specifically to a formaldehyde production waste gas treatment device. Background Technology

[0002] Formaldehyde is an organic chemical substance, a colorless and irritating gas that can irritate the eyes and nose. The International Agency for Research on Cancer (IARC) of the World Health Organization lists formaldehyde as a Group 1 carcinogen. Formaldehyde is also a commonly used chemical, and its production process generates industrial waste gas containing significant amounts of toxins. This waste gas needs to be recovered and treated before further processing, thus requiring waste gas recovery and treatment devices.

[0003] Insufficiency of existing technology: Currently, most waste gas recovery and treatment methods for formaldehyde production on the market involve activated carbon adsorption and chemical reagent spraying reaction to treat the waste gas. Existing devices suffer from insufficient contact between waste gas and chemical reagents, short contact time, and inability to collect the waste liquid after reaction. Moreover, the treated gas cannot be subjected to more stringent testing, and may still cause environmental pollution if it is emitted into the atmosphere without testing. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a formaldehyde production waste gas treatment device to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a formaldehyde production waste gas treatment device, comprising an absorption device, and further comprising: an emission mechanism, a reaction device, and a control device. The side of the absorption device is fixedly connected to the inside of the reaction device, the bottom of the absorption device is fixedly connected to the top of the control device, the top of the emission mechanism is fixedly connected to the side of the absorption device, and the bottom of the reaction device is fixedly connected to the top of the control device. The absorption device includes a water storage pump and a water supply pipe. A connecting pipe is fixedly connected to the top of the water supply pipe, a spraying groove is fixedly connected to the bottom of the connecting pipe, and a nozzle is fixedly connected to the bottom of the spraying groove. The side of the water supply pipe is fixedly connected to the inside of the reaction device, and a T-shaped pipe is fixedly connected to the bottom of the water supply pipe.

[0006] Furthermore, the side of the water storage pump is fixedly connected to the top of the T-shaped pipe, the bottom of the T-shaped pipe is fixedly connected to a double-headed water pump, the side of the double-headed water pump is fixedly connected to a base, the side of the base is fixedly connected to the side of the reaction device, the inside of the T-shaped pipe is fixedly connected to a first solenoid valve, and the bottom of the water storage pump is fixedly connected to the top of the control device.

[0007] Furthermore, the emission mechanism includes a bellows, a fan is fixedly connected to the inner side of the bellows, a filter tube is fixedly connected to the side of the bellows, the side of the filter tube is fixedly connected to the inner side of the reaction device, a filter screen is fixedly connected to the top of the filter tube, a harmful gas sensor is fixedly connected to the inner side of the filter tube, and the bottom of the bellows is fixedly connected to the top of the control device.

[0008] Furthermore, a second solenoid valve is fixedly connected to the inner side of the filter tube, an exhaust pipe is fixedly connected to the inner side of the air box, a fixing ring is fixedly connected to the side of the exhaust pipe, an L-shaped rod is fixedly connected to the side of the fixing ring, and a rain cover is fixedly connected to the top of the L-shaped rod.

[0009] Furthermore, the reaction device includes a reaction chamber, an air inlet pipe fixedly connected to the side of the reaction chamber, a water pump fixedly connected to the side of the reaction chamber, the top end of the water pump fixedly connected to the bottom end of a dual-head water pump, and a water quality sensor fixedly connected to the side of the reaction chamber.

[0010] Furthermore, the bottom of the reaction chamber has a drain outlet, the side of the reaction chamber is fixedly connected to a drain valve, the inside of the drain outlet is fixedly connected to the side of the drain valve, the top of the reaction chamber has a water inlet, the inside of the water inlet is fixedly connected to the side of the water supply pipe, and the bottom of the reaction chamber is fixedly connected to the top of the control device.

[0011] Furthermore, the control device includes a control host and a load-bearing plate. A display screen is fixedly connected to the side of the control host, and a support leg is fixedly connected to the bottom of the control host. The bottom of the support leg is fixedly connected to the top of the load-bearing plate, the top of the load-bearing plate is fixedly connected to the bottom of the reaction chamber, the top of the support leg is fixedly connected to the bottom of the bellows, and the top of the load-bearing plate is fixedly connected to the bottom of the water pump.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model, by incorporating spray absorption, facilitates full contact between the liquid absorbent and formaldehyde waste gas, thereby improving removal efficiency; some absorbents can be recycled, reducing waste generation and providing certain economic benefits; compared to other treatment technologies, spray absorption typically has lower operating costs and is suitable for large-scale applications.

[0014] 2. This utility model, by incorporating a harmful gas sensor, facilitates real-time monitoring of the concentration of emitted gases. Once the concentration of formaldehyde or other harmful gases exceeds the safety standard, the system can immediately issue an alarm, thereby enabling timely measures to be taken. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the absorption mechanism of this utility model;

[0017] Figure 3 This is a partial structural diagram of the absorption mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the emission mechanism structure of this utility model;

[0019] Figure 5 This is a partial structural diagram of the emission mechanism of this utility model;

[0020] Figure 6 This is a schematic diagram of the control mechanism structure of this utility model.

[0021] The attached figures are labeled as follows: 1. Absorption device; 101. Water pump; 102. Water supply pipe; 103. Connecting pipe; 104. Spraying trough; 105. Nozzle; 106. Dual-head water pump; 107. Base; 108. T-shaped pipe; 109. First solenoid valve; 2. Discharge mechanism; 201. Air box; 202. Filter pipe; 203. Filter screen; 204. Fan; 205. Second solenoid valve; 206. Exhaust pipe; 207. Fixing ring; 208. L-shaped rod; 209. Rain cover; 3. Reaction device; 301. Reaction chamber; 302. Air inlet pipe; 303. Water pumping pipe; 304. Drain outlet; 305. Water inlet; 306. Drain valve; 4. Control device; 401. Control host; 402. Display screen; 403. Support leg; 404. Load-bearing plate; 5. Harmful gas sensor; 6. Water quality sensor. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The formaldehyde production waste gas treatment device involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Reference Figures 1 to 6This utility model provides a formaldehyde production waste gas treatment device, including an absorption device 1, and further including an emission mechanism 2, a reaction device 3, and a control device 4. The side of the absorption device 1 is fixedly connected to the inside of the reaction device 3, the bottom of the absorption device 1 is fixedly connected to the top of the control device 4, the top of the emission mechanism 2 is fixedly connected to the side of the absorption device 1, and the bottom of the reaction device 3 is fixedly connected to the top of the control device 4. The absorption device 1 includes a water storage pump 101 and a water supply pipe 102. The top of the water supply pipe 102 is fixedly connected to a connecting pipe 103, the bottom of the connecting pipe 103 is fixedly connected to a spraying trough 104, and the bottom of the spraying trough 104 is fixedly connected to a nozzle 105. The side of the water supply pipe 102 is fixedly connected to the inside of the reaction device 3, and the bottom of the water supply pipe 102 is fixedly connected to a T-shaped pipe 108.

[0024] The side of the water storage pump 101 is fixedly connected to the top of the T-shaped pipe 108, the bottom of the T-shaped pipe 108 is fixedly connected to the double-headed water pump 106, the side of the double-headed water pump 106 is fixedly connected to the base 107, the side of the base 107 is fixedly connected to the side of the reaction device 3, the inside of the T-shaped pipe 108 is fixedly connected to the first solenoid valve 109, and the bottom of the water storage pump 101 is fixedly connected to the top of the control device 4.

[0025] The emission mechanism 2 includes a bellows 201, a fan 204 is fixedly connected to the inside of the bellows 201, a filter tube 202 is fixedly connected to the side of the bellows 201, the side of the filter tube 202 is fixedly connected to the inside of the reaction device 3, a filter screen 203 is fixedly connected to the top of the filter tube 202, a harmful gas sensor 5 is fixedly connected to the inside of the filter tube 202, and the bottom of the bellows 201 is fixedly connected to the top of the control device 4.

[0026] The filter tube 202 is fixedly connected to the inner side of a second solenoid valve 205, the air box 201 is fixedly connected to the inner side of an exhaust pipe 206, the exhaust pipe 206 is fixedly connected to the side of a fixing ring 207, the fixing ring 207 is fixedly connected to the side of an L-shaped rod 208, and the top of the L-shaped rod 208 is fixedly connected to a rain cover 209.

[0027] The reaction device 3 includes a reaction chamber 301, an air inlet pipe 302 fixedly connected to the side of the reaction chamber 301, a water pump pipe 303 fixedly connected to the side of the reaction chamber 301, the top end of the water pump pipe 303 fixedly connected to the bottom end of the double-headed water pump 106, and a water quality sensor 6 fixedly connected to the side of the reaction chamber 301.

[0028] The reaction chamber 301 has a drain outlet 304 at its bottom end, a drain valve 306 is fixedly connected to the side of the reaction chamber 301, the inner side of the drain outlet 304 is fixedly connected to the side of the drain valve 306, the reaction chamber 301 has a water inlet 305 at its top end, the inner side of the water inlet 305 is fixedly connected to the side of the water supply pipe 102, and the bottom end of the reaction chamber 301 is fixedly connected to the top end of the control device 4.

[0029] The control device 4 includes a control host 401 and a load-bearing plate 404. A display screen 402 is fixedly connected to the side of the control host 401. A support leg 403 is fixedly connected to the bottom of the control host 401. The bottom of the support leg 403 is fixedly connected to the top of the load-bearing plate 404. The top of the load-bearing plate 404 is fixedly connected to the bottom of the reaction chamber 301. The top of the support leg 403 is fixedly connected to the bottom of the bellows 201. The top of the load-bearing plate 404 is fixedly connected to the bottom of the water pump 101.

[0030] The working principle of this utility model is as follows: When using this device to treat waste gas, it mainly utilizes the characteristic that the waste gas is easily soluble in water to treat it. The waste gas is cooled and absorbed by the absorption device 1. The waste gas is discharged into the interior of the reaction chamber 301 through the air inlet pipe 302. Then, the first solenoid valve 109 at one end of the water storage pump 101 is opened, and water is transported to the spray tank 104 through the water supply pipe 102. The spraying action of the nozzle 105 increases the contact area between the waste gas and the liquid, so that the waste gas can be better absorbed. Moreover, there is a water quality sensor 6 at the bottom of the reaction chamber 301, which can effectively display the current water quality changes.

[0031] When the absorbed and purified gas floats to the filter tube 202, there is a harmful gas sensor 5 above the filter tube 202. When the display screen 402 shows that there is no harmful gas in the current gas, the second solenoid valve 205 can be opened to discharge the purified gas from the exhaust pipe 206 through the action of the second solenoid valve 205. In addition, a filter screen 203 is installed at the end of the filter tube 202 to perform a second filtration. A rain cover 209 is installed at the top of the exhaust pipe 206 to protect the exhaust pipe 206 from corrosion by rain and sunlight, thereby increasing its service life.

[0032] Once there is some water inside the reaction chamber 301, this water can be reused. The first solenoid valve 109, located near the dual-head water pump 106, is controlled by the display screen 402 to absorb and cool the subsequent waste gas again. A water quality sensor 6 is fixed on the bottom inner side of the reaction chamber 301 to detect whether the harmful substances in the water exceed the standard. The water can be discharged through the drain outlet 304 for treatment. The entire device is sensed by the control host 401 and then controlled by the display screen 402.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A formaldehyde production waste gas treatment device, comprising an absorption device (1), characterized in that, It also includes: a discharge mechanism (2), a reaction device (3) and a control device (4). The side of the absorption device (1) is fixedly connected to the inside of the reaction device (3). The bottom of the absorption device (1) is fixedly connected to the top of the control device (4). The top of the discharge mechanism (2) is fixedly connected to the side of the absorption device (1). The bottom of the reaction device (3) is fixedly connected to the top of the control device (4). The absorption device (1) includes a water storage pump (101) and a water supply pipe (102). The top of the water supply pipe (102) is fixedly connected to a connecting pipe (103). The bottom of the connecting pipe (103) is fixedly connected to a spraying trough (104). The bottom of the spraying trough (104) is fixedly connected to a nozzle (105). The side of the water supply pipe (102) is fixedly connected to the inside of the reaction device (3). The bottom of the water supply pipe (102) is fixedly connected to a T-shaped pipe (108).

2. The formaldehyde production waste gas treatment device according to claim 1, characterized in that: The side of the water storage pump (101) is fixedly connected to the top of the T-tube (108), the bottom of the T-tube (108) is fixedly connected to a double-headed water pump (106), the side of the double-headed water pump (106) is fixedly connected to a base (107), the side of the base (107) is fixedly connected to the side of the reaction device (3), the inside of the T-tube (108) is fixedly connected to a first solenoid valve (109), and the bottom of the water storage pump (101) is fixedly connected to the top of the control device (4).

3. The formaldehyde production waste gas treatment device according to claim 1, characterized in that: The emission mechanism (2) includes a bellows (201), a fan (204) is fixedly connected to the inside of the bellows (201), a filter tube (202) is fixedly connected to the side of the bellows (201), the side of the filter tube (202) is fixedly connected to the inside of the reaction device (3), a filter screen (203) is fixedly connected to the top of the filter tube (202), a harmful gas sensor (5) is fixedly connected to the inside of the filter tube (202), and the bottom of the bellows (201) is fixedly connected to the top of the control device (4).

4. The formaldehyde production waste gas treatment device according to claim 3, characterized in that: A second solenoid valve (205) is fixedly connected to the inner side of the filter tube (202), an exhaust pipe (206) is fixedly connected to the inner side of the air box (201), a fixing ring (207) is fixedly connected to the side of the exhaust pipe (206), an L-shaped rod (208) is fixedly connected to the side of the fixing ring (207), and a rain cover (209) is fixedly connected to the top of the L-shaped rod (208).

5. The formaldehyde production waste gas treatment device according to claim 1, characterized in that: The reaction device (3) includes a reaction chamber (301), an air inlet pipe (302) is fixedly connected to the side of the reaction chamber (301), a water pump pipe (303) is fixedly connected to the side of the reaction chamber (301), the top end of the water pump pipe (303) is fixedly connected to the bottom end of a double-headed water pump (106), and a water quality sensor (6) is fixedly connected to the side of the reaction chamber (301).

6. The formaldehyde production waste gas treatment device according to claim 5, characterized in that: The reaction chamber (301) has a drain outlet (304) at its bottom end. A drain valve (306) is fixedly connected to the side of the reaction chamber (301). The inside of the drain outlet (304) is fixedly connected to the side of the drain valve (306). The reaction chamber (301) has a water inlet (305) at its top end. The inside of the water inlet (305) is fixedly connected to the side of the water supply pipe (102). The bottom end of the reaction chamber (301) is fixedly connected to the top end of the control device (4).

7. The formaldehyde production waste gas treatment device according to claim 1, characterized in that: The control device (4) includes a control host (401) and a load-bearing plate (404). A display screen (402) is fixedly connected to the side of the control host (401). A support leg (403) is fixedly connected to the bottom of the control host (401). The bottom of the support leg (403) is fixedly connected to the top of the load-bearing plate (404). The top of the load-bearing plate (404) is fixedly connected to the bottom of the reaction chamber (301). The top of the support leg (403) is fixedly connected to the bottom of the bellows (201). The top of the load-bearing plate (404) is fixedly connected to the bottom of the water pump (101).

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