Arsenic-containing wastewater multi-stage purification device

Abstract

The utility model discloses an arsenic-containing wastewater multistage purification device which comprises a first purification mechanism and a feeding pipe installed on one side of the first purification mechanism, a second purification mechanism is arranged on one side of the first purification mechanism, a collecting box is arranged on one side of the bottom of the second purification mechanism, and the first purification mechanism comprises a first purification box. Lifting supporting columns are fixedly installed on the periphery of the top of the first purification box, a lifting top plate is fixedly installed on the tops of the lifting supporting columns, a lifting motor is fixed to the center of the top of the lifting top plate, the output end of the lifting motor is fixedly connected with a lifting threaded rod, and the lifting threaded rod is driven by the lifting motor to rotate. The lifting threaded support drives the lifting sliding rod and the lifting sliding plate to move in a lifting mode, the water outlet pipe with the holes is inserted into activated sludge, sewage needing to be purified is sprayed into the activated sludge, arsenic in the sewage is adsorbed and degraded through microorganisms in the activated sludge, and therefore the function of purifying the sewage is achieved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a multi-stage purification device for arsenic-containing wastewater. Background Technology

[0002] With the development of industries such as metallurgy and chemicals, as well as the exploitation of low-grade ores, arsenic has been extracted along with other major elements. The amount of arsenic entering wastewater is quite large, and it generally also contains other heavy metal ions. The combined effect of arsenic and lead can make the wastewater more toxic. Arsenic poisoning incidents have been found in wastewater both domestically and internationally. In order to treat large quantities of arsenic-containing wastewater, factories use the activated sludge process to purify the wastewater.

[0003] Publication No. CN222556703U discloses an arsenic-containing wastewater treatment device. Through the coordinated design of a sleeve, packing, inlet channel, and distribution pipe, arsenic-containing wastewater enters the inner cavity of the sleeve, flows through the inlet channel into the distribution pipe, and is discharged through the drain pipe into the sludge. This allows the arsenic-containing wastewater to contact the sludge, purifying it. Simultaneously, the outer cylinder's lifting and rotating motion expands the distribution pipe's operating area, enabling it to act as a stirring rod while dispersing the arsenic-containing wastewater into the sludge. After the wastewater is drained, the distribution pipe provides extensive stirring of the arsenic-containing wastewater and sludge, improving the sludge's purification efficiency. However, this patent still has the following problems in practical use:

[0004] This arsenic-containing wastewater treatment device introduces wastewater into the sludge through stirring. However, stirring the sludge causes it to become diluted, which affects the adsorption and degradation of arsenic by microorganisms in the sludge. Furthermore, after the microorganisms adsorb and degrade the arsenic, some arsenic remains unadsorbed and degraded, thus affecting the purification effect of the arsenic-containing wastewater.

[0005] Therefore, a multi-stage purification device for arsenic-containing wastewater is proposed to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide a multi-stage purification device for arsenic-containing wastewater, in order to solve the problems mentioned in the background art, which are that once the sludge is stirred, it will be diluted, thereby affecting the effect of microorganisms in the sludge adsorbing and degrading arsenic. At the same time, after the adsorption and degradation by microorganisms, some arsenic will remain unadsorbed, thus affecting the purification effect of arsenic-containing wastewater.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a multi-stage purification device for arsenic-containing wastewater, comprising a first purification mechanism and a feed pipe installed on one side of the first purification mechanism;

[0008] A second purification mechanism is provided on one side of the first purification mechanism, and a collection box is provided on one side of the bottom of the second purification mechanism;

[0009] Also includes:

[0010] The first purification mechanism includes a first purification box, with lifting support columns fixedly installed around the top of the first purification box, a lifting top plate fixedly installed on the top of the lifting support columns, and a lifting motor fixedly installed at the center of the top of the lifting top plate.

[0011] The output end of the lifting motor is fixedly connected to a lifting threaded rod, the bottom of the lifting threaded rod is rotatably connected to a support base plate, and a second support rod is fixedly installed around the top of the support base plate.

[0012] The lifting threaded rod is threadedly connected to a lifting threaded bracket on its outer side. A lifting sliding rod is fixedly installed around the bottom of the lifting threaded bracket, and a lifting sliding plate is fixedly installed at the bottom of the lifting sliding rod.

[0013] Preferably, a diverter is fixedly installed at the top center of the lifting sliding plate, an inlet pipe is fixedly installed at the top of the diverter, a rotating bracket is fixedly installed on one side of the bottom of the lifting sliding plate, a rotating motor is fixedly installed on the outer side of one side of the rotating bracket, and a rotating worm gear is fixedly connected to the output end of the rotating motor.

[0014] Preferably, a rotating worm gear is meshed with one side of the rotating worm, the rotating worm gear is rotatably connected to the distributor, a plurality of perforated water outlet pipes are fixedly installed at the bottom of the rotating worm gear, a detachable threaded base is threadedly connected to the bottom of the first purification box, and a drain valve is fixedly installed on one side of the bottom of the first purification box.

[0015] Preferably, the feed pipe is fixedly installed on one side of the middle of the first purification box, a conveying motor is fixedly installed at the end of the feed pipe, a conveying auger is fixedly connected to the output end of the conveying motor, a support ring is fixedly installed on the outside of the first purification box, and support legs are symmetrically installed on both sides of the support ring.

[0016] Preferably, the second purification mechanism includes a second purification box, a feed hopper is fixedly installed on one side of the top of the second purification box, a drain valve is fixedly installed on one side of the bottom of the feed hopper, a mixing motor is fixedly installed at the center of the top of the second purification box, and a mixing auger is fixedly connected to the output end of the mixing motor.

[0017] Preferably, a mixing bracket is fixedly installed on the top and bottom outer sides of the mixing auger, a spiral cleaning blade is fixedly installed between the upper and lower mixing brackets, the spiral cleaning blade is in close contact with the inner wall of the second purification box, and a mixing stirring rod is fixedly installed in the middle of the mixing bracket.

[0018] Preferably, the collection box is located at the bottom of the drain valve, a second valve is fixedly installed on one side of the bottom of the collection box, and a filter screen is snapped into the inner top of the collection box.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This multi-stage purification device for arsenic-containing wastewater utilizes a lifting motor to drive the lifting threaded rod to rotate, causing the lifting threaded bracket to move the lifting sliding rod and lifting sliding plate up and down. A perforated outlet pipe is inserted into the activated sludge, and the wastewater to be purified is sprayed into the activated sludge. The microorganisms in the activated sludge adsorb and degrade the arsenic in the wastewater, thereby achieving the function of purifying the wastewater. A flocculant is used for secondary purification of the wastewater, and a spiral cleaning blade is used to clean the inner wall of the second purification tank, preventing sediment residue from affecting the purification effect. The specific details are as follows:

[0020] 1. By setting up the first purification mechanism, the lifting motor can drive the lifting threaded rod to rotate, which in turn drives the lifting threaded bracket to move the lifting sliding rod and the lifting sliding plate up and down. This allows the perforated outlet pipe to be inserted into the activated sludge, and the wastewater to be purified can be sprayed into the activated sludge. The microorganisms in the activated sludge can adsorb and degrade the arsenic in the wastewater, thereby achieving the function of purifying the wastewater. At the same time, the rotating motor is started to drive the rotating worm gear to rotate. Utilizing the meshing connection between the rotating worm gear and the rotating worm wheel, the perforated outlet pipe can be rotated. By changing the position of the perforated outlet pipe, the wastewater can be sprayed into the activated sludge from all directions, improving the purification effect of the wastewater. This avoids the phenomenon of sludge dilution caused by stirring the sludge, which would affect the sludge purification effect.

[0021] 2. By setting up a second purification mechanism, the wastewater after primary purification and flocculant can be poured into the second purification tank through the feed hopper. The mixing motor is started to drive the mixing auger and mixing support to rotate, thereby achieving full mixing of flocculant and wastewater. The wastewater is then purified secondary by the flocculant. At the same time, the inner wall of the second purification tank is cleaned by the spiral cleaning blades to avoid sedimentation residue, which would affect the purification effect of the wastewater. The purified wastewater is discharged into the collection tank by the drain valve and filtered by the filter screen. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0023] Figure 2 This is a three-dimensional cross-sectional structural diagram of the first purification mechanism in this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the lifting sliding rod in this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the perforated water outlet pipe in this utility model;

[0026] Figure 5 This is a three-dimensional cross-sectional structural diagram of the second purification mechanism in this utility model;

[0027] Figure 6 This is a three-dimensional structural diagram of the spiral cleaning blade and mixing rod in this utility model.

[0028] In the diagram: 1. First purification mechanism; 101. First purification box; 102. Lifting support column; 103. Lifting top plate; 104. Lifting motor; 105. Lifting threaded rod; 106. Support base plate; 107. Second support rod; 108. Lifting threaded bracket; 109. Lifting sliding rod; 110. Lifting sliding plate; 111. Diverter; 112. Inlet pipe; 113. Rotating bracket; 114. Rotating motor; 115. Rotating worm gear; 116. Rotating worm wheel; 117. Perforated water outlet. 1. Pipe; 118. Detachable threaded base; 119. Drain valve; 120. Feed pipe; 121. Conveyor motor; 122. Conveyor auger; 123. Support ring; 124. Support leg; 2. Second purification mechanism; 201. Second purification box; 202. Feed hopper; 203. Drain valve; 204. Mixing motor; 205. Mixing auger; 206. Mixing bracket; 207. Spiral cleaning blade; 208. Mixing stirring rod; 209. Collection box; 210. Second valve; 211. Filter screen. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1-6This utility model provides a technical solution: a multi-stage purification device for arsenic-containing wastewater, including a first purification mechanism 1 and a feed pipe 120 installed on one side of the first purification mechanism 1. A second purification mechanism 2 is provided on one side of the first purification mechanism 1, and a collection box 209 is provided on one side of the bottom of the second purification mechanism 2. The first purification mechanism 1 includes a first purification box 101. Lifting support columns 102 are fixedly installed around the top of the first purification box 101. A lifting top plate 103 is fixedly installed on the top of the lifting support columns 102. A lifting motor 104 is fixedly installed at the center of the top of the lifting top plate 103. The output end of the lifting motor 104 is fixedly connected to a lifting threaded rod 105, and the bottom of the lifting threaded rod 105 is rotatably connected to a support base plate 1. 06. A second support rod 107 is fixedly installed around the top of the support base plate 106. A lifting threaded bracket 108 is threadedly connected to the outer side of the lifting threaded rod 105. A lifting sliding rod 109 is fixedly installed around the bottom of the lifting threaded bracket 108. A lifting sliding plate 110 is fixedly installed at the bottom of the lifting sliding rod 109. A diverter 111 is fixedly installed at the top center of the lifting sliding plate 110. An inlet pipe 112 is fixedly installed at the top of the diverter 111. A rotating bracket 113 is fixedly installed on one side of the bottom of the lifting sliding plate 110. A rotating motor 114 is fixedly installed on the outer side of one side of the rotating bracket 113. A rotating worm gear 115 is fixedly connected to the output end of the rotating motor 114. One side of the rotating worm gear 115 meshes... A rotating worm gear 116 is connected to the first purification tank 101, and the rotating worm gear 116 is rotatably connected to the diverter 111. Several perforated water outlet pipes 117 are fixedly installed at the bottom of the rotating worm gear 116. A detachable threaded base 118 is threadedly connected to the bottom of the first purification tank 101. A drain valve 119 is fixedly installed on one side of the bottom of the first purification tank 101. A feed pipe 120 is fixedly installed on one side of the middle of the first purification tank 101. A conveyor motor 121 is fixedly installed at the end of the feed pipe 120. A conveyor auger 122 is fixedly connected to the output end of the conveyor motor 121. A support ring 123 is fixedly installed on the outside of the first purification tank 101. Support legs 124 are symmetrically installed on both sides of the support ring 123. A lifting threaded rod 105 is driven to rotate by a lifting motor 104. The lifting threaded bracket 108 drives the lifting sliding rod 109 and the lifting sliding plate 110 to move up and down, inserting the perforated outlet pipe 117 into the activated sludge and spraying the wastewater to be purified into the activated sludge. The microorganisms in the activated sludge adsorb and degrade the arsenic in the wastewater, thereby achieving the function of purifying the wastewater. At the same time, the rotating motor 114 is started to drive the rotating worm gear 115 to rotate. Utilizing the meshing connection between the rotating worm gear 115 and the rotating worm wheel 116, the perforated outlet pipe 117 is rotated. By changing the position of the perforated outlet pipe 117, the wastewater is sprayed into the activated sludge from all directions, improving the wastewater purification effect and preventing sludge dilution caused by stirring, which would affect the sludge purification effect.

[0031] The second purification mechanism 2 includes a second purification box 201. A feed hopper 202 is fixedly installed on one side of the top of the second purification box 201, and a drain valve 203 is fixedly installed on one side of the bottom of the feed hopper 202. A mixing motor 204 is fixedly installed at the center of the top of the second purification box 201. A mixing auger 205 is fixedly connected to the output end of the mixing motor 204. Mixing supports 206 are fixedly installed on the top and bottom outer sides of the mixing auger 205. A spiral cleaning blade 207 is fixedly installed between the upper and lower mixing supports 206. The spiral cleaning blade 207 is in close contact with the inner wall of the second purification box 201. A mixing stirring rod 208 is fixedly installed in the middle of the mixing supports 206. A collection box 209 is located at the bottom of the drain valve 203. A second valve 210 is fixedly installed on one side of the bottom of the collection box 209. A filter screen 211 is snapped onto the inner top of the collection box 209. The wastewater after primary purification and the flocculant are poured into the second purification box 201 through the feed hopper 202. The mixing motor 204 is started to drive the mixing auger 205 and the mixing support 206 to rotate, so that the flocculant and wastewater can be fully mixed. The wastewater is then purified secondary by the flocculant. At the same time, the spiral cleaning blades 207 are used to clean the inner wall of the second purification box 201 to avoid sedimentation residue, which would affect the purification effect of the wastewater. The purified wastewater is discharged into the collection box 209 by the drain valve 203, and the sediment is filtered by the filter screen 211.

[0032] Working principle: Before using this multi-stage purification device for arsenic-containing wastewater, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 6As shown, firstly, the conveying motor 121 drives the conveying auger 122 to rotate, conveying the activated sludge to the first purification tank 101. The lifting motor 104 drives the lifting threaded rod 105 to rotate, causing the lifting threaded bracket 108 to move the lifting sliding rod 109 and the lifting sliding plate 110 up and down, inserting the perforated outlet pipe 117 into the activated sludge and spraying the wastewater to be purified into it. The microorganisms in the activated sludge adsorb and degrade the arsenic in the wastewater, thus purifying the wastewater. Simultaneously, the rotating motor 114 starts, driving the rotating worm gear 115 to rotate. Utilizing the meshing connection between the rotating worm gear 115 and the rotating worm wheel 116, the perforated outlet pipe 117 rotates. By changing the position of the perforated outlet pipe 117, the wastewater is... Wastewater is sprayed into the activated sludge from all directions to improve the purification effect. Stirring the sludge will not cause dilution and thus affect the purification effect. Next, the primary purified wastewater and flocculant are poured together into the second purification tank 201 through the feed hopper 202. The mixing motor 204 is started to drive the mixing auger 205 and mixing support 206 to rotate, thus ensuring thorough mixing of the flocculant and wastewater. The flocculant then performs secondary purification of the wastewater. Simultaneously, the spiral cleaning blades 207 clean the inner wall of the second purification tank 201 to prevent sediment residue from affecting the purification effect. Finally, the purified wastewater is discharged into the collection tank 209 through the drain valve 203, where it is filtered by the filter screen 211.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-stage purification device for arsenic-containing wastewater, comprising a first purification mechanism (1) and a feed pipe (120) installed on one side of the first purification mechanism (1). A second purification mechanism (2) is provided on one side of the first purification mechanism (1), and a collection box (209) is provided on one side of the bottom of the second purification mechanism (2). characterized in that Also includes: The first purification mechanism (1) includes a first purification box (101), and lifting support columns (102) are fixedly installed around the top of the first purification box (101). A lifting top plate (103) is fixedly installed on the top of the lifting support columns (102), and a lifting motor (104) is fixed at the center of the top of the lifting top plate (103). Among them, the output end of the lifting motor (104) is fixedly connected to the lifting threaded rod (105), the bottom of the lifting threaded rod (105) is rotatably connected to the support base plate (106), and the top of the support base plate (106) is fixedly installed with the second support rod (107). The lifting threaded rod (105) is threadedly connected to a lifting threaded bracket (108) on its outer side. A lifting sliding rod (109) is fixedly installed around the bottom of the lifting threaded bracket (108), and a lifting sliding plate (110) is fixedly installed at the bottom of the lifting sliding rod (109).

2. The multi-stage purification device for arsenic-containing wastewater according to claim 1, characterized in that: A diverter (111) is fixedly installed at the top center of the lifting sliding plate (110). A water inlet pipe (112) is fixedly installed at the top of the diverter (111). A rotating bracket (113) is fixedly installed on one side of the bottom of the lifting sliding plate (110). A rotating motor (114) is fixedly installed on the outer side of one side of the rotating bracket (113). A rotating worm (115) is fixedly connected to the output end of the rotating motor (114).

3. The multi-stage arsenic-laden wastewater purification device of claim 2, wherein: A rotating worm gear (116) is meshed with one side of the rotating worm (115). The rotating worm gear (116) is rotatably connected to the distributor (111). Several perforated water outlet pipes (117) are fixedly installed at the bottom of the rotating worm gear (116). A detachable threaded base (118) is threadedly connected to the bottom of the first purification box (101). A drain valve (119) is fixedly installed on one side of the bottom of the first purification box (101).

4. The multi-stage arsenic-laden wastewater treatment device of claim 3, wherein: The feed pipe (120) is fixedly installed on one side of the middle of the first purification box (101). A conveyor motor (121) is fixedly installed at the end of the feed pipe (120). A conveyor auger (122) is fixedly connected to the output end of the conveyor motor (121). A support ring (123) is fixedly installed on the outside of the first purification box (101). Support legs (124) are symmetrically installed on both sides of the support ring (123).

5. The multi-stage arsenic-laden wastewater treatment device of claim 1, wherein: The second purification mechanism (2) includes a second purification box (201), a feed hopper (202) is fixedly installed on one side of the top of the second purification box (201), a drain valve (203) is fixedly installed on one side of the bottom of the feed hopper (202), a mixing motor (204) is fixedly installed at the center of the top of the second purification box (201), and a mixing auger (205) is fixedly connected to the output end of the mixing motor (204).

6. The multi-stage arsenic-laden wastewater treatment device of claim 5, wherein: The mixing auger (205) is fixedly installed with mixing brackets (206) on the top and bottom outer sides. A spiral cleaning blade (207) is fixedly installed between the upper and lower mixing brackets (206). The spiral cleaning blade (207) is attached to the inner wall of the second purification box (201). A mixing stirring rod (208) is fixedly installed in the middle of the mixing bracket (206).

7. The multi-stage arsenic-laden wastewater treatment device of claim 6, wherein: The collection box (209) is located at the bottom of the drain valve (203). A second valve (210) is fixedly installed on one side of the bottom of the collection box (209). A filter screen (211) is snapped into the inner top of the collection box (209).

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