Chemical wastewater treatment tower

Abstract

The utility model provides a chemical wastewater treatment tower, including the tower bucket, the top of tower bucket is provided with a plurality of bearing column, the welding fixed between tower bucket and bearing column, the outer arc surface between a plurality of bearing columns is slidably arranged with an installation board, the right side of installation board is provided with the reagent bucket, is provided with the medicine outlet pipe in the medicine outlet of reagent bucket lower side, the middle part of medicine outlet pipe is connected with solenoid valve no. 2, the upper side of reagent bucket is provided with the avoidance mouth of being adapted with medicine outlet pipe, the upper side of each bearing column is provided with the thread groove, and the inner screw cylinder is threadedly connected in the thread groove, and the upper side of installation board is provided with vibration drive unit. Through the chemical wastewater treatment tower of the utility model, the caking reagent can be effectively broken up through up-down vibration, so that it falls uniformly and dissolves quickly, ensures that the reagent is continuously and stably put in, improves the contact efficiency with wastewater, enhances the reaction uniformity and treatment stability.

Description

Technical Field

[0001] This utility model belongs to the field of imidazole production wastewater treatment technology, and specifically relates to a chemical wastewater treatment tower. Background Technology

[0002] Chemical wastewater treatment towers are highly efficient reaction equipment specifically designed for treating high-concentration, recalcitrant, toxic, and hazardous wastewater generated during chemical production processes. They are widely used in industries such as pharmaceuticals, pesticides, dyes, and fine chemicals, and are particularly suitable for treating wastewater containing imidazole compounds (such as metronidazole and benzimidazole). This type of wastewater typically has characteristics such as complex composition, high organic matter concentration (COD can reach tens of thousands of mg / L), high biological toxicity, and poor biodegradability. It requires pretreatment through processes such as chemical oxidation, coagulation sedimentation, and neutralization to reduce the pollution load and create conditions for subsequent biochemical treatment.

[0003] Existing chemical wastewater treatment towers often employ a combined technology of "chemical coagulation + oxidation + sedimentation." During operation, wastewater containing imidazole pollutants is injected into the tower's main reaction vessel, followed by the addition of chemical agents—for example, polyaluminum chloride (PAC)—to aggregate fine suspended solids and organic matter into large flocs, facilitating subsequent separation. However, PAC is highly hygroscopic; if exposed to humid air during storage or transportation, if packaging is not properly sealed, or if subjected to prolonged pressure during storage, it easily absorbs moisture and deliquesces, leading to… Powder clumps together or even hardens into lumps, making it difficult to pass smoothly through the dosing funnel, screw conveyor, or metering valve. This can easily cause problems such as blockage at the discharge port, discontinuous dosing, and low or drastic actual dosage. This not only leads to waste of reagents, but more importantly, it prevents the wastewater in the tower from being fully coagulated. The resulting flocs are uneven, small, and loose, with poor settling performance, which seriously affects the removal of suspended solids, color, and some COD. Consequently, it affects the stable operation of subsequent treatment units. In addition, frequent manual tapping and unblocking increases operational risks and reduces the level of automation. Utility Model Content

[0004] In view of this, this utility model addresses the shortcomings of the existing technology by providing a chemical wastewater treatment tower. Through up-and-down vibration, it can effectively break up agglomerated reagents, allowing them to fall evenly and dissolve quickly, ensuring continuous and stable reagent input, improving contact efficiency with wastewater, and enhancing reaction uniformity and treatment stability.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a chemical wastewater treatment tower, including a tower tank, with multiple supporting columns at the top of the tower tank, and the tower tank and supporting columns are fixed together by welding. An installation plate is slidably arranged between the outer arc surfaces of the multiple supporting columns. A reagent tank is arranged on the right side of the installation plate. A discharge pipe is arranged in the discharge port opened on the lower side of the reagent tank. A solenoid valve is connected in series in the middle of the discharge pipe. An avoidance opening adapted to the discharge pipe is opened on the upper side of the reagent tank. An inner threaded cylinder is threadedly connected in the threaded groove opened on the upper side of each supporting column. A vibration drive unit is arranged on the upper side of the installation plate. The vibration drive unit includes a vibration motor arranged on the installation plate. Springs are placed between the inner threaded cylinder and the installation plate. Multiple springs are respectively sleeved on the outer arc surfaces of the corresponding supporting columns.

[0006] As a further improvement of this utility model, a lid is provided on the upper side of the medicine container, a handle is provided on the upper side of the lid, and a sealing strip adapted to the medicine container is provided on the outer surface of the lid. The lid and the sealing strip are connected by adhesive.

[0007] As a further improvement of this utility model, the inside of the tower barrel is equipped with rotating stirring blades, each stirring blade having a slot. A scraper is also provided on the lower side of the stirring blades, and the scraper contacts the inner arc wall of the tower barrel. A drive unit for driving the stirring blades to rotate is provided on the upper side of the tower barrel. The drive unit includes a drive motor located on the upper side of the tower barrel, and the output shaft of the drive motor is connected to the upper end of the stirring blades through a coupling.

[0008] As a further improvement of this utility model, limit plates are provided on the outer arc surface of the bearing column, and the bearing column and the limit plates are fixed by welding, and the mounting plate is in contact with the two limit plates.

[0009] As a further improvement of this utility model, multiple support frames are provided on the outer arc surface of the tower barrel, and multiple mounting holes are opened on the lower inner side of the support frames.

[0010] As a further improvement of this utility model, a water inlet pipe is provided on the upper side of the tower barrel, and a drain pipe is provided on the lower side of the tower barrel. Both the water inlet pipe and the drain pipe are connected to the inside of the tower barrel, and a solenoid valve is connected in series in the middle of the drain pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: Firstly, the container lid is opened by the handle, the reagent is added, and then closed. The sealing ring on the lid provides an effective seal, preventing moisture and clumping and extending the reagent's shelf life. Subsequently, the imidazole production wastewater is introduced into the tower through the inlet pipe. Solenoid valve two is opened, and the reagent falls precisely into the tower under gravity, avoiding errors from manual addition. Then, the drive motor is started to rotate the stirring column and grooved stirring blades, which strongly shears and thoroughly mixes the wastewater and reagent. The grooved structure can break up agglomerates and improve reaction efficiency. After treatment, solenoid valve one is opened to discharge the effluent into the next process. The entire process realizes sealed storage, automatic addition, efficient mixing, and orderly discharge of the reagent.

[0012] Secondly, when the reagent in the tank cannot be discharged normally due to long-term storage or moisture accumulation, the vibration motor is started, which drives the reagent tank to vibrate stably up and down under the guidance of the guide column and the rebound force of the spring. This effectively disperses the clumps of reagent inside and restores its fluidity. Then, the second solenoid valve is opened, and the reagent can fall smoothly into the tower under gravity to fully react with the wastewater, ensuring continuous dosing and treatment effect. In the non-vibration state, the mounting plate is in contact with the limit plate, and the load is directly borne by the limit plate. The spring is not stressed, avoiding long-term pressure or fatigue damage and significantly extending the service life of the spring.

[0013] Thirdly, when the spring becomes fatigued due to long-term use, the hexagonal head on the inner screw can be rotated counterclockwise with a tool to remove it from the threaded end of the bearing column, making it easy to quickly remove the aging spring. Then, the new spring is fitted onto the outer arc surface of the bearing column, and the inner screw is tightened clockwise with a tool to complete the replacement. The quick-installation thread design eliminates the need to disassemble the entire device, making the operation simple, time-saving, and labor-saving, and significantly improving maintenance efficiency.

[0014] Fourth, the scraper blades are in close contact with the inner arc wall of the tower. When the stirring column rotates, it drives the scraper blades to rotate along the cylinder wall, which can effectively scrape off the sludge or flocculent deposits attached to the inner wall of the tower, preventing them from accumulating in the long term to form scale or dead sludge, and ensuring that the inside of the cylinder is clean and free of residual sludge after the wastewater treatment is completed.

[0015] Fifth, by inserting bolts into the mounting holes, the tower barrel inside the support frame is firmly fixed to the ground, which can effectively enhance the overall stability and vibration resistance of the equipment, prevent the tower barrel from shaking, displacing or even overturning during stirring, vibration or liquid flow, and ensure safe operation. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2This is a schematic cross-sectional view of the tower structure of this utility model; Figure 3 This is a front sectional view of the sleeve structure of this utility model; Figure 4 This is an enlarged structural diagram of point A of this utility model.

[0018] In the diagram: 101, tower tank; 102, drain pipe; 103, support frame; 104, water inlet pipe; 105, solenoid valve one; 201, drive motor; 202, stirring blade column; 203, scraper blade; 301, bearing column; 302, spring; 303, inner screw cylinder; 304, vibration motor; 305, reagent tank; 306, tank lid; 307, discharge pipe; 308, solenoid valve two; 309, limit plate; 310, mounting plate. Detailed Implementation

[0019] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0020] like Figure 1 , 2 As shown in Figures 3 and 4, a chemical wastewater treatment tower includes a tower tank 101. Multiple support frames 103 are mounted on the outer arc surface of the tower tank 101. The support frames 103 and the tower tank 101 are fixed together by welding. Multiple mounting holes are provided on the lower inner side of the support frames 103. Bolts are inserted into these mounting holes to fix the tower tank 101 inside the support frames 103 to the ground, ensuring greater stability during wastewater treatment. An inlet pipe 104 is provided on the upper side of the tower tank 101, and a drain pipe 102 is provided on the lower side of the tower tank 101. Both the inlet pipe 104 and the drain pipe 102 are connected to the interior of the tower tank 101, and a solenoid valve 105 is connected in series in the middle of the drain pipe 102. Multiple bearings are provided on the top of the tower tank 101. A mounting plate 310 is slidably arranged between the outer arc surfaces of multiple support columns 301. A medicine tank 305 is arranged on the right side of the mounting plate 310. A lid 306 is arranged on the upper side of the medicine tank 305. A handle is arranged on the upper side of the lid 306. A sealing strip adapted to the medicine tank 305 is arranged on the outer side of the lid 306. A discharge pipe 307 is arranged in the discharge port opened on the lower side of the medicine tank 305. A solenoid valve 308 is connected in series in the middle of the discharge pipe 307. An avoidance opening adapted to the discharge pipe 307 is opened on the upper side of the medicine tank 305. An inner threaded cylinder 303 is threadedly connected in the threaded groove opened on the upper side of each support column 301. A vibration drive unit is arranged on the upper side of the mounting plate 310.

[0021] like Figure 2 , 4 As shown, a stirring blade column 202 is rotatably arranged inside the tower 101, and each stirring blade is also provided with a slot. A drive unit for driving the stirring blade column 202 to rotate is provided on the upper side of the tower 101. The drive unit includes a drive motor 201 arranged on the upper side of the tower 101. The output shaft of the drive motor 201 is connected to the upper end of the stirring blade column 202 through a coupling.

[0022] Personnel open the lid 306 using the handle, add the reagent, and then close the lid 306 again. The sealing ring on the outer side of the lid 306 seals the reagent container 305, initially preventing reagent clumping. The wastewater pipe from the imidazole treatment is then connected to the inlet pipe 104, allowing the wastewater to enter the tower 101. Next, the personnel open the second solenoid valve 308, causing the reagent to fall into the tower 101 due to gravity. After adding the appropriate dosage, the second solenoid valve 308 is closed. The drive motor 201 is then activated, and its output shaft rotates the stirring plate 202, thoroughly mixing the wastewater and reagent. The grooves on the stirring plate 202 shear the wastewater and reagent, ensuring more complete mixing. After the wastewater mixing reaction is complete, the first solenoid valve 105 is opened, allowing the mixed water to be discharged through the drain pipe 102 to the next wastewater treatment stage.

[0023] like Figure 1 , 2 As shown in Figures 3 and 4, the vibration drive unit includes a vibration motor 304 mounted on the mounting plate 310. Springs 302 are placed between the inner screw cylinder 303 and the mounting plate 310. Multiple springs 302 are respectively sleeved on the outer arc surface of the corresponding bearing column 301. Limiting plates 309 are provided on the outer arc surface of the bearing column 301. The mounting plate 310 is in contact with the two limiting plates 309.

[0024] When the medicine inside the medicine tank 305 has been stored for a long time and clumps due to external factors and cannot be discharged, the vibration motor 304 is activated by controlling it to run. This causes the medicine tank 305 on the mounting plate 310 to vibrate up and down under the sliding restriction of the guide column and the elasticity of the spring 302, thus dispersing the clumped medicine inside. Then, by controlling the opening of the solenoid valve 308, the dispersed medicine easily falls into the medicine tank 305 due to its own weight and mixes with the wastewater for the subsequent mixing reaction. When the medicine tank 305 is not vibrating, the mounting plate 310 contacts the limit plate 309, eliminating the need for the spring 302 to apply tension to the mounting plate 310, thus avoiding fatigue of the spring 302 and extending its service life.

[0025] When spring 302 becomes fatigued, use a tool to turn the hexagonal head on the inner threaded barrel 303 counterclockwise to remove it from the threaded end on the support post 301. The fatigued spring 302 can then be removed. A new spring 302 is then fitted onto the outer arc surface of the support post 301, and the hexagonal head on the inner threaded barrel 303 is turned clockwise to screw it onto the support post 301, thus completing the quick removal and replacement of spring 302.

[0026] According to another embodiment of the present invention, such as Figure 2 , 3 As shown, a scraper 203 is also provided on the lower side of the stirring plate 202 column. The scraper 203 contacts the inner arc wall of the tower 101. When the stirring plate 202 column rotates, it also drives the scraper 203 to rotate, which can scrape off the sludge on the inner wall of the tower 101, so that no sludge will remain inside the tower 101 when the wastewater is discharged after treatment.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A chemical wastewater treatment tower, comprising a tower tank (101), characterized in that: The top of the tower (101) is provided with multiple support columns (301), and an installation plate (310) is slidably arranged between the outer arc surfaces of the multiple support columns (301). A medicine tank (305) is provided on the right side of the installation plate (310). A medicine discharge pipe (307) is provided in the discharge port opened on the lower side of the medicine tank (305). A solenoid valve (308) is connected in series in the middle of the medicine discharge pipe (307). An avoidance opening adapted to the medicine discharge pipe (307) is opened on the upper side of the medicine tank (305). An inner screw cylinder (303) is threadedly connected in the threaded groove opened on the upper side of each support column (301). A vibration drive unit is provided on the upper side of the installation plate (310).

2. The chemical wastewater treatment tower as described in claim 1, characterized in that: The vibration drive unit includes a vibration motor (304) mounted on the mounting plate (310), and springs (302) are placed between the inner screw cylinder (303) and the mounting plate (310). Multiple springs (302) are respectively sleeved on the outer arc surface of the corresponding bearing column (301).

3. The chemical wastewater treatment tower as described in claim 1, characterized in that: Limiting plates (309) are provided on the outer arc surface of the bearing column (301), and the mounting plate (310) is in contact with the two limiting plates (309).

4. The chemical wastewater treatment tower as described in claim 1, characterized in that: The medicine container (305) is provided with a lid (306) on its upper side, and a handle is provided on the upper side of the lid (306). A sealing strip that is compatible with the medicine container (305) is provided on the outer side of the lid (306).

5. The chemical wastewater treatment tower as described in claim 1, characterized in that: The upper side of the tower (101) is provided with a water inlet pipe (104), and the lower side of the tower (101) is provided with a drain pipe (102). Both the water inlet pipe (104) and the drain pipe (102) are connected to the inside of the tower (101), and a solenoid valve (105) is connected in series in the middle of the drain pipe (102).

6. The chemical wastewater treatment tower as described in claim 1, characterized in that: The tower (101) is equipped with rotating stirring blades (202), each stirring blade having a slot. A scraper (203) is also provided on the lower side of the stirring blades (202), and the scraper (203) contacts the inner arc wall of the tower (101). A drive unit for driving the stirring blades (202) to rotate is provided on the upper side of the tower (101).

7. A chemical wastewater treatment tower as described in claim 6, characterized in that: The drive unit includes a drive motor (201) disposed on the upper side of the tower (101), and the output shaft of the drive motor (201) is connected to the upper end of the stirring blade column (202) through a coupling.

8. A chemical wastewater treatment tower as described in claim 1, characterized in that: Multiple support frames (103) are provided on the outer arc surface of the tower (101), and multiple mounting holes are provided on the lower inner side of the support frame (103).

Images