An alkaline coal mine wastewater treatment device

Abstract

The utility model discloses a kind of alkaline coal mine wastewater treatment devices, including processing box, the top of processing box is equipped with top cover, and the top of top cover is equipped with gas purification assembly for irritant gas absorption purification treatment;Sealing groove is opened in the top of processing box around, and sealing block is clamped in the inside of sealing groove, and the top of sealing block is fixedly installed with top cover;Coconut shell charcoal is arranged in the bottom of processing box, and two groups of first activated carbon filter screen are arranged in the inside top of processing box.This utility model is filtered and handled by being equipped with processing box, top cover, sealing block, sealing groove, coconut shell charcoal, first activated carbon filter screen, air draught fan, gas purification tank, honeycomb activated carbon and second activated carbon filter screen etc. component cooperation, to realize wastewater filtration in sealed environment, effectively prevent irritant smell volatilization diffusion;At the same time, through negative pressure air draught and cascade adsorption process, gas purification efficiency is significantly improved to more than 95%.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an alkaline coal mine wastewater treatment device. Background Technology

[0002] Alkaline coal mine wastewater refers to mine drainage with a pH value significantly higher than 7 (usually ≥9) that flows out during coal mining. It mainly contains high concentrations of suspended solids (such as coal dust and rock fragments), dissolved inorganic salts (such as carbonates and sulfates), heavy metal ions (such as iron and manganese), and small amounts of organic pollutants (such as grease and mineral processing reagents). Its alkalinity mostly originates from the hydrolysis of minerals (such as calcite and dolomite) in the strata or from alkaline substances left over from blasting. After being neutralized with an acid neutralizing agent, it needs to be filtered to meet quality standards and facilitate subsequent recycling.

[0003] However, existing mine wastewater treatment facilities generally suffer from the problem of releasing irritating gases (such as H2S and NH3) during the filtration of neutralized wastewater. These volatile harmful substances not only endanger the health of on-site workers but also cause secondary pollution to the surrounding environment. Utility Model Content

[0004] The purpose of this invention is to provide an alkaline coal mine wastewater treatment device. This device utilizes a treatment box, top cover, sealing block, sealing groove, coconut shell charcoal, first activated carbon filter, induced draft fan, gas purification box, honeycomb activated carbon, and second activated carbon filter to achieve wastewater filtration in a sealed environment, effectively preventing the volatilization and diffusion of irritating odors. Simultaneously, through negative pressure ventilation and a tiered adsorption process, the gas purification efficiency is significantly improved to over 95%, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An alkaline coal mine wastewater treatment device includes a treatment tank, a top cover installed on the top of the treatment tank, and gas purification components for absorbing and purifying irritating gases at both ends of the top of the top cover; a sealing groove is opened around the top of the treatment tank, and a sealing block is snapped into the inside of the sealing groove, with the top cover fixedly installed on the top of the sealing block; coconut shell charcoal is placed at the bottom inside the treatment tank, and two sets of first activated carbon filters are installed at the top inside the treatment tank.

[0007] The treatment tank has a drain pipe with valve control installed at the bottom center, an inlet pipe for wastewater discharge installed at the top center of the top cover, and support legs fixed around the bottom of the treatment tank.

[0008] Preferably, the gas purification assembly includes an exhaust fan, an exhaust pipe, a branch pipe, a sealing tube, a sealing cover, an inlet, a gas purification chamber, honeycomb activated carbon, and a second activated carbon filter. The exhaust fan has an exhaust pipe fixedly installed at its output end, which penetrates the top cover. A branch pipe is threaded onto the back end of the exhaust fan, and a sealing tube is threaded onto the bottom of the branch pipe. A sealing cover is installed on the top of the gas purification chamber. The sealing tube is sealed and inserted into the inlet, and is located inside the sealing cover and the gas purification chamber. Honeycomb activated carbon is placed at the bottom of the gas purification chamber. A second activated carbon filter is installed inside the sealing cover. Inlets for inserting the sealing tube are provided at both ends of the top of the sealing cover.

[0009] Preferably, the gas purification component further includes a fixing block, a fixing groove, and a sliding groove. The fixing block is fixedly installed around the bottom of the sealing cover, and the fixing block is snapped into the inside of the fixing groove. A sliding groove is provided on the lower inner side of the sealing cover, and a second activated carbon filter is slidably installed inside the sliding groove.

[0010] Preferably, the induced draft fan is fixedly installed at both ends of the top of the top cover, and grooved seats are fixedly installed at both ends of the top cover. Exhaust pipes are installed at both ends of both sides of the gas purification box.

[0011] Preferably, the upper sides of the processing box are equipped with card holders, and the first activated carbon filter screen is engaged inside the card holders.

[0012] Preferably, a support plate is installed above the rear end of the processing box, and a gas purification box is placed on top of the support plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention achieves safe filtration of neutralized mine wastewater in a closed environment through the coordinated operation of components such as the treatment box, top cover, sealing block, sealing groove, coconut shell charcoal, and first activated carbon filter screen, effectively preventing the volatilization and diffusion of irritating odors.

[0015] This invention, by incorporating components such as an induced draft fan, a gas purification chamber, honeycomb activated carbon, and a second activated carbon filter, utilizes negative pressure ventilation and a tiered adsorption process to significantly improve gas purification efficiency to over 95%. This invention not only solves the problem of harmful gas volatilization and leakage during traditional treatment processes but also ensures the health and safety of operators, achieving the dual goals of high-efficiency treatment and environmental safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the explosion separation structure of this utility model;

[0018] Figure 3 for Figure 2 Rear view structural diagram;

[0019] Figure 4 This is a top view of the internal structure of the processing box of this utility model;

[0020] Figure 5 This is a schematic diagram of the top cover structure of this utility model from below;

[0021] Figure 6 This is a schematic diagram of the sealing cap structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the gas purification box and the honeycomb activated carbon separation structure of this utility model.

[0023] In the diagram: 1. Processing box; 2. Support leg; 3. Drain pipe; 4. Top cover; 401. Sealing block; 402. Sealing groove; 5. Water inlet pipe; 6. Coconut shell charcoal; 7. Card holder; 701. First activated carbon filter; 702. Handle; 8. Exhaust fan; 801. Exhaust duct; 802. Branch pipe; 803. Sealing insert; 9. Sealing cover; 901. Insert; 902. Fixing block; 903. Fixing groove; 904. Gas purification box; 10. Honeycomb activated carbon; 11. Slide groove; 12. Second activated carbon filter; 13. Exhaust pipe; 14. Support plate. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-7 This utility model provides a technical solution:

[0026] An alkaline coal mine wastewater treatment device includes a treatment tank 1, a top cover 4 installed on the top of the treatment tank 1, a sealing groove 402 formed around the top of the treatment tank 1, and a sealing block 401 snapped into the inside of the sealing groove 402, with the top cover 4 fixedly installed on the top of the sealing block 401; coconut shell charcoal 6 is placed at the bottom inside the treatment tank 1, and two sets of first activated carbon filter screens 701 are arranged at the top and bottom of the first activated carbon filter screens 701; handles 702 are installed at both ends of the top of the first activated carbon filter screens 701, so as to facilitate the removal and disassembly of the first activated carbon filter screens 701 from the mounting base 7.

[0027] This utility model achieves safe filtration treatment of neutralized mine wastewater in a closed environment through the coordinated operation of components such as the treatment box 1, top cover 4, sealing block 401, sealing groove 402, coconut shell charcoal 6, and first activated carbon filter screen 701, effectively preventing the volatilization and diffusion of irritating odors.

[0028] The bottom center of the treatment tank 1 is equipped with a drain pipe 3 with a valve control, the top center of the top cover 4 is equipped with an inlet pipe 5 for wastewater discharge, and the bottom of the treatment tank 1 is fixed with support legs 2.

[0029] First, the neutralized wastewater is transported to the treatment tank 1 through the inlet pipe 5 via an external conveying device. It then passes through two sets of first activated carbon filters for purification. Next, the wastewater passes through coconut shell charcoal 6 to adsorb heavy metal ions, organic pollutants, and odor molecules, while also improving the water color. Finally, it is discharged through the drain pipe 3 for recycling.

[0030] The top of the top cover 4 is provided with gas purification components for absorbing and purifying irritating gases at both ends. The gas purification components include a blower 8, a blower pipe 801, a branch pipe 802, a sealing tube 803, a sealing cover 9, an inlet 901, a gas purification box 904, honeycomb activated carbon 10, and a second activated carbon filter 12. The blower 8 has a blower pipe 801 fixedly installed at the output end that passes through the inside of the top cover 4. The branch pipe 802 is threaded on the back end of the blower 8. The sealing tube 803 is threaded on the bottom of the branch pipe 802. The top of the gas purification box 904 is provided with a sealing cover 9. The sealing tube 803 is sealed and inserted into the inlet 901 and is located inside the sealing cover 9 and the gas purification box 904. The honeycomb activated carbon 10 is placed at the bottom of the gas purification box 904. The second activated carbon filter 12 is provided inside the sealing cover 9. The top of the sealing cover 9 has inlets 901 for inserting the sealing tube 803. The induced draft fan 8 is fixedly installed at both ends of the top of the top cover 4. Grooved seats are fixedly installed at both ends of the top cover 4. Exhaust pipes 13 are installed at both ends of both sides of the gas purification box 904.

[0031] The gas purification assembly also includes a fixing block 902, a fixing groove 903, and a sliding groove 11. The fixing block 902 is fixedly installed around the bottom of the sealing cover 9. The fixing block 902 is snapped into the inside of the fixing groove 903. A sliding groove 11 is provided on the lower inner side of the sealing cover 9. A second activated carbon filter screen 12 is slidably installed inside the sliding groove 11.

[0032] This invention, by incorporating components such as an induced draft fan 8, a gas purification chamber 904, honeycomb activated carbon 10, and a second activated carbon filter 12, utilizes negative pressure ventilation and a tiered adsorption process to significantly improve gas purification efficiency to over 95%. This invention not only solves the problem of harmful gas volatilization and leakage during traditional treatment processes but also ensures the health and safety of operators, achieving the dual goals of high-efficiency treatment and environmental safety.

[0033] In summary, this utility model, through the coordinated use of components such as the treatment box 1, top cover 4, sealing block 401, sealing groove 402, coconut shell charcoal 6, first activated carbon filter 701, exhaust fan 8, gas purification box 904, honeycomb activated carbon 10, and second activated carbon filter 12, achieves wastewater filtration treatment in a sealed environment, effectively preventing the volatilization and diffusion of irritating odors; at the same time, through negative pressure exhaust and cascade adsorption processes, the gas purification efficiency is significantly improved to over 95%.

[0034] Furthermore, by starting the induced draft fan 8, the negative pressure suction generated by it draws the irritating gases (such as H2S and NH3) produced by the neutralized wastewater from the treatment tank 1, and introduces them into the gas purification tank 904 through the branch pipe 802. They are then purified by the second activated carbon filter 12 and the honeycomb activated carbon 10 in sequence. After treatment, they are discharged through the exhaust pipe 13, thereby reducing pollution to the external environment.

[0035] The model of the induced draft fan 8 is Y5-47. Its core function is to force the formation of directional gas flow, ensuring that volatile pollutants are transported in a closed system throughout the process to avoid the risk of leakage, while providing stable airflow power for subsequent activated carbon adsorption and purification.

[0036] Coconut Shell Activated Carbon 6: Granular activated carbon made from coconut shells through high-temperature carbonization and activation, possessing a high specific surface area (1000-1500 m²). 2 The microporous structure ( / g) is mainly used to adsorb organic pollutants and heavy metals.

[0037] First activated carbon filter 701 and second activated carbon filter 12: Powdered activated carbon (coal / wood) and fiber are combined and pressed into a mesh filter material, which has both physical interception and chemical adsorption functions, and is commonly used in gas pre-filtration;

[0038] Honeycomb activated carbon 10: A porous honeycomb structure (pore size 1-3mm) sintered from coal or wood charcoal powder and binder. It has low wind resistance and high mechanical strength, and is suitable for large-volume VOCs treatment.

[0039] The upper sides of the treatment box 1 are equipped with mounting brackets 7, which facilitate the disassembly, removal, replacement and cleaning of the first activated carbon filter 701; and the first activated carbon filter 701 is locked inside the mounting brackets 7. A support plate 14 is installed on the upper rear end of the treatment box 1, and a gas purification box 904 is placed on top of the support plate 14.

[0040] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A treatment device for alkaline coal mine wastewater, comprising a treatment tank (1), characterized in that: The top of the treatment box (1) is equipped with a top cover (4), and the top two ends of the top cover (4) are provided with gas purification components for irritating gas absorption and purification treatment; a sealing groove (402) is opened around the top of the treatment box (1), and a sealing block (401) is snapped into the inside of the sealing groove (402), and the top cover (4) is fixedly installed on the top of the sealing block (401); coconut shell charcoal (6) is placed in the bottom of the treatment box (1), and two sets of first activated carbon filters (701) are set in the upper part of the inside of the treatment box (1); Among them, a drain pipe (3) with valve control is installed at the bottom center of the treatment box (1), an inlet pipe (5) for wastewater discharge is installed at the top center of the top cover (4), and support legs (2) are fixed around the bottom of the treatment box (1).

2. The alkaline coal mine wastewater treatment device according to claim 1, characterized in that: The gas purification assembly includes an exhaust fan (8), an exhaust pipe (801), a branch pipe (802), a sealing insert (803), a sealing cover (9), an inlet (901), a gas purification box (904), honeycomb activated carbon (10), and a second activated carbon filter (12). The exhaust fan (8) has an exhaust pipe (801) fixedly installed at its output end, which penetrates the top cover (4). The branch pipe (802) is threaded onto the back end of the exhaust fan (8), and a sealing insert is threaded onto the bottom of the branch pipe (802). The gas purification box (904) is equipped with a sealing cover (9) on the top of the tube (803). The sealing tube (803) is sealed and inserted into the socket (901) and located inside the sealing cover (9) and the gas purification box (904). The bottom of the gas purification box (904) is provided with honeycomb activated carbon (10). The inside of the sealing cover (9) is provided with a second activated carbon filter (12). The top two ends of the sealing cover (9) are provided with sockets (901) for inserting the sealing tube (803).

3. The alkaline coal mine wastewater treatment device according to claim 2, characterized in that: The gas purification assembly also includes a fixing block (902), a fixing groove (903), and a sliding groove (11). The fixing block (902) is fixedly installed around the bottom of the sealing cover (9). The fixing block (902) is snapped into the inside of the fixing groove (903). A sliding groove (11) is provided on the lower inner side of the sealing cover (9). A second activated carbon filter (12) is slidably installed inside the sliding groove (11).

4. The alkaline coal mine wastewater treatment device according to claim 2, characterized in that: The induced draft fan (8) is fixedly installed at both ends of the top of the top cover (4), and groove seats are fixedly installed at both ends of the top cover (4). Exhaust pipes (13) are installed at both ends of both sides of the gas purification box (904).

5. The alkaline coal mine wastewater treatment device according to claim 1, characterized in that: The processing box (1) has two card holders (7) installed on the upper sides inside, and the first activated carbon filter screen (701) is snapped into the inside of the card holder (7).

6. The alkaline coal mine wastewater treatment device according to claim 1, characterized in that: A support plate (14) is installed above the back end of the processing box (1), and a gas purification box (904) is placed on top of the support plate (14).

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