On-site online recycling device for cleaning wastewater containing heavy metal ions in production line

Abstract

The utility model discloses a heavy metal ion-containing cleaning wastewater production line on-site online recycling device which comprises a shell, a purification mechanism is arranged in the shell, and a through pipe hole is formed in the side surface of the shell. The purification mechanism comprises a raw water bucket, a metal concentrated liquid collecting bucket, a first water outlet pipe, a cleaning filter, a first water passing pipe, a water inlet pipe, a pure water collecting bucket, a second water passing pipe, a raw water pump, a third water passing pipe, a fourth water passing pipe, a nanofiltration assembly, a fifth water passing pipe, a first regulating valve, a booster pump, a second regulating valve, a third regulating valve, a reverse osmosis assembly and a fourth regulating valve; a first water inlet pipe, a second water outlet pipe, a sixth water passing pipe, a branch pipe, a dosing metering pump and a medicine tank, and a nanofiltration membrane is arranged in the nanofiltration assembly. According to the structure, the shell and the purification mechanism are arranged, so that the investment of other chemical agents can be greatly reduced, and compared with the traditional chemical precipitation, no redundant product is generated, the reuse rate of reclaimed water is effectively improved, and the emission of pollutants is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater purification, in particular to an on-site online recycling device for a production line of cleaning wastewater containing heavy metal ions. Background Art

[0002] Generally, cleaning wastewater containing heavy metal ions will be concentrated for treatment and then discharged after meeting the emission standards.

[0003] During the purification process, heavy metal ions in wastewater are generally purified by using chemical precipitation. However, this process requires the input of chemical reagents, which is costly and has a low recycling rate for wastewater. Utility Model Content

[0004] The utility model provides an on-site online recycling device for a production line of cleaning wastewater containing heavy metal ions, which can greatly reduce the input of other chemical agents. Compared with traditional chemical precipitation, no redundant products are produced, the reuse rate of reclaimed water is effectively improved, and the discharge of pollutants is reduced.

[0005] To achieve the above-mentioned purpose, an on-site online recycling device for a production line of cleaning wastewater containing heavy metal ions is provided, comprising a shell, a purification mechanism is arranged inside the shell, and a through-pipe hole is arranged on the side surface of the shell. The purification mechanism includes a raw water bucket, a metal concentrate collection bucket, a first water outlet pipe, a cleaning filter, a first water pipe, a water inlet pipe, a pure water collection bucket, a second water pipe, a raw water pump, a third water pipe, a fourth water pipe, a nanofiltration component, a fifth water pipe, a first regulating valve, a booster pump, a second regulating valve, a third regulating valve, a reverse osmosis component, a fourth regulating valve, a second water outlet pipe, a sixth water pipe, a branch pipe, a dosing metering pump and a medicine tank. A nanofiltration membrane is arranged inside the nanofiltration component, and a reverse osmosis membrane is arranged inside the reverse osmosis component. The cleaning filter is set up to facilitate the filtration of solid matter in the wastewater. The raw water pump is set up to facilitate the extraction of wastewater in the raw water barrel so that subsequent devices can treat it. The nanofiltration component is set up to facilitate the interception of Ni2+, Zn2+, Cu2+, AL3+ and other ions in the wastewater. The reverse osmosis component is set up to facilitate the removal of salt in the wastewater.

[0006] According to the on-site online recycling device for heavy metal ion-containing cleaning wastewater production line, the cleaning filter is connected to the raw water tank. The raw water tank, metal concentrate collection tank, and pure water collection tank are fixedly connected to the lower surface of the housing. The raw water pump, nanofiltration module, booster pump, and reverse osmosis module are fixedly connected to the side surface of the housing. The booster pump is provided to increase the pressure of the wastewater as it passes through the reverse osmosis membrane.

[0007] According to the on-site online recycling device for the heavy metal ion-containing cleaning wastewater production line, the first water pipe is fixedly connected between the cleaning filter and the raw water pump, the fourth water pipe is fixedly connected between the raw water pump and the nanofiltration component, and the third water pipe is fixedly connected between the nanofiltration component and the metal concentrate collection barrel.

[0008] According to the on-site online recycling device for the heavy metal ion-containing cleaning wastewater production line, the fifth water pipe is fixedly connected between the nanofiltration component and the booster pump, the second water pipe is fixedly connected between the reverse osmosis component and the pure water collection barrel, and the sixth water pipe is fixedly connected between the reverse osmosis component and the booster pump.

[0009] According to the on-site online recycling device for the heavy metal ion-containing cleaning wastewater production line, the first outlet pipe, the water inlet pipe, and the second outlet pipe are respectively arranged on the metal concentrate collection barrel, the raw water barrel, and the reverse osmosis component, and the fourth regulating valve is arranged in the middle of the second outlet pipe.

[0010] According to the on-site online recycling device for heavy metal ion-containing cleaning wastewater production line, the branch pipe is connected to the sixth water pipe, the medicine tank is fixedly connected to the end of the branch pipe away from the sixth water pipe, and the dosing metering pump is disposed in the middle of the branch pipe. The provision of the medicine tank, dosing metering pump, and branch pipe facilitates the addition of sodium hydroxide to the wastewater to adjust its pH value.

[0011] According to the on-site online recycling device for the heavy metal ion-containing cleaning wastewater production line, the first regulating valve, the second regulating valve, and the third regulating valve are respectively arranged in the middle of the fifth water pipe, the third water pipe, and the second water pipe.

[0012] According to the on-site online recycling device for the production line of heavy metal ion-containing cleaning wastewater, the lower surface of the housing is fixedly connected to the legs, and the bottom of the legs is provided with rollers. The rollers are provided to facilitate the movement of the device.

[0013] The beneficial effects of the utility model are as follows: by setting up the shell and the purification mechanism, the input of other chemical agents can be greatly reduced. Compared with the traditional chemical precipitation, no redundant products are produced, the reuse rate of reclaimed water is effectively improved, and the discharge of pollutants is reduced.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1This is a schematic diagram of the overall structure of the on-site online recycling device for the production line of cleaning wastewater containing heavy metal ions of the utility model;

[0017] Figure 2 This is a schematic diagram of the purification mechanism structure of the on-site online recycling device for the production line of cleaning wastewater containing heavy metal ions of the utility model;

[0018] Figure 3 This is an enlarged view of the local structure of point A of the on-site online recycling device of the heavy metal ion-containing cleaning wastewater production line of the utility model.

[0019] Legend:

[0020] 1. Shell; 101. Through-hole; 2. Purification mechanism; 201. Raw water tank; 202. Metal concentrate collection tank; 203. First water outlet pipe; 204. Cleaning filter; 205. First water pipe; 206. Water inlet pipe; 207. Pure water collection tank; 208. Second water pipe; 209. Raw water pump; 210. Third water pipe; 211. Fourth water pipe; 212. Nanofiltration component; 213. Fifth water pipe; 214. First regulating valve; 215. Booster pump; 216. Second regulating valve; 217. Third regulating valve; 218. Reverse osmosis component; 219. Fourth regulating valve; 220. Second water outlet pipe; 221. Sixth water pipe; 222. Branch pipe; 223. Dosing and metering pump; 224. Medicine tank; 3. Support legs; 4. Rollers. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0022] Reference Figures 1 to 3The embodiment of the utility model contains an on-site online recycling device for heavy metal ion cleaning wastewater production line, which includes a shell 1, a purification mechanism 2 is arranged inside the shell 1, and a through-pipe hole 101 is arranged on the side surface of the shell 1. The purification mechanism 2 includes a raw water bucket 201, a metal concentrate collection bucket 202, a first water outlet pipe 203, a cleaning filter 204, a first water pipe 205, a water inlet pipe 206, a pure water collection bucket 207, a second water pipe 208, a raw water pump 209, and a metal concentrate collection bucket 201. 09, the third water pipe 210, the fourth water pipe 211, the nanofiltration component 212, the fifth water pipe 213, the first regulating valve 214, the booster pump 215, the second regulating valve 216, the third regulating valve 217, the reverse osmosis component 218, the fourth regulating valve 219, the second water outlet pipe 220, the sixth water pipe 221, the branch pipe 222, the dosing metering pump 223 and the medicine tank 224, the nanofiltration component 212 is provided with a nanofiltration membrane, the reverse osmosis component 2 18 is provided with a reverse osmosis membrane inside, the lower surface of the shell 1 is fixedly connected to the support leg 3, the bottom of the support leg 3 is provided with a roller 4, the bottom of the pure water collection barrel 207 is provided with an outflow port, the water in the pure water collection barrel 207 will be used to clean the aqueduct through the water pipe, the heavy metal concentrate in the metal concentrate collection barrel 202 will return to the cleaning tank and be used as a replenishing liquid for the cleaning tank. The water flowing out of the third water pipe 210 is a concentrate containing heavy metal ions, which is discharged from the second water outlet pipe 220. The wastewater flowing out is high-salt wastewater, which will be discharged into the treatment plant. The pure water flowing out from the second water pipe 208 can be used as make-up water for tap water. The flow rate of the raw water pump 209 is 1t / h, the flow rate through the second regulating valve 216 is 0.1t / h, the flow rate through the first regulating valve 214 is 0.9t / h, the flow rate through the third regulating valve 217 is 0.63t / h, and the flow rate through the fourth regulating valve 219 is 0.27t / h.

[0023] The cleaning filter 204 is connected to the raw water barrel 201, the raw water barrel 201, the metal concentrate collection barrel 202 and the pure water collection barrel 207 are fixedly connected to the lower surface of the shell 1, and the raw water pump 209, the nanofiltration component 212, the booster pump 215 and the reverse osmosis component 218 are fixedly connected to the inner side surface of the shell 1.

[0024] The first water outlet pipe 203, the water inlet pipe 206, and the second water outlet pipe 220 are respectively arranged on the metal concentrate collection barrel 202, the raw water barrel 201, and the reverse osmosis component 218. The fourth regulating valve 219 is arranged in the middle of the second water outlet pipe 220. The branch pipe 222 is connected to the sixth water pipe 221. The medicine tank 224 is fixedly connected to the end of the branch pipe 222 away from the sixth water pipe 221. The dosing metering pump 223 is arranged in the middle of the branch pipe 222.

[0025] The first water pipe 205 is fixedly connected between the cleaning filter 204 and the raw water pump 209, the fourth water pipe 211 is fixedly connected between the raw water pump 209 and the nanofiltration component 212, the third water pipe 210 is fixedly connected between the nanofiltration component 212 and the metal concentrate collection barrel 202, the fifth water pipe 213 is fixedly connected between the nanofiltration component 212 and the booster pump 215, the second water pipe 208 is fixedly connected between the reverse osmosis component 218 and the pure water collection barrel 207, and the sixth water pipe 221 is fixedly connected between the reverse osmosis component 218 and the booster pump 215.

[0026] The first regulating valve 214 , the second regulating valve 216 , and the third regulating valve 217 are respectively disposed between the fifth water pipe 213 , the third water pipe 210 , and the second water pipe 208 .

[0027] Working Principle: Wastewater containing metal ions flows from the first cleaning tank to the intermediate raw water tank 201, then passes through the self-cleaning filter 204 and, via the raw water pump 209, into the nanofiltration module 212. The nanofiltration membrane in the nanofiltration module 212 effectively intercepts high-valence ions such as Ni2+, Zn2+, Cu2+, and Al3+, but cannot intercept ions such as Na+ and Cl-. This allows for purely physical separation of heavy metal ions from the concentrated water without any added chemical costs. The concentrated heavy metal concentrate is returned to the metal concentrate collection tank 202 and used as a replenisher, significantly reducing the cost of added chemicals in the plating tank formulation. Wastewater passing through the nanofiltration membrane enters the next stage for further purification. After sodium hydroxide is added to adjust the pH to 6-7, it enters the reverse osmosis membrane. The concentrated water is discharged as high-salt water to the downstream sewage treatment plant, while the pure water flows into the pure water collection tank for use as tap water replenishment.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. On-site online recycling device for production line of cleaning wastewater containing heavy metal ions, characterized in that: The invention comprises a shell (1), a purification mechanism (2) is provided inside the shell (1), a through-pipe hole (101) is provided on the side surface of the shell (1), and the purification mechanism (2) comprises a raw water bucket (201), a metal concentrate collection bucket (202), a first water outlet pipe (203), a cleaning filter (204), a first water pipe (205), a water inlet pipe (206), a pure water collection bucket (207), a second water pipe (208), a raw water pump (209), a third water pipe (210), and a fourth water pipe (211). , a nanofiltration component (212), a fifth water pipe (213), a first regulating valve (214), a booster pump (215), a second regulating valve (216), a third regulating valve (217), a reverse osmosis component (218), a fourth regulating valve (219), a second water outlet pipe (220), a sixth water pipe (221), a branch pipe (222), a dosing metering pump (223) and a medicine tank (224), wherein a nanofiltration membrane is provided inside the nanofiltration component (212), and a reverse osmosis membrane is provided inside the reverse osmosis component (218).

2. The on-site online recycling device for heavy metal ion-containing cleaning wastewater production line according to claim 1, characterized in that: The cleaning filter (204) is connected to the raw water barrel (201); the raw water barrel (201), the metal concentrate collection barrel (202), and the pure water collection barrel (207) are fixedly connected to the lower surface of the interior of the shell (1); and the raw water pump (209), the nanofiltration component (212), the booster pump (215), and the reverse osmosis component (218) are fixedly connected to the side surface of the interior of the shell (1).

3. The on-site online recycling device for heavy metal ion-containing cleaning wastewater production line according to claim 1, characterized in that: The first water pipe (205) is fixedly connected between the cleaning filter (204) and the raw water pump (209), the fourth water pipe (211) is fixedly connected between the raw water pump (209) and the nanofiltration component (212), and the third water pipe (210) is fixedly connected between the nanofiltration component (212) and the metal concentrate collection barrel (202).

4. The on-site online recycling device for heavy metal ion-containing cleaning wastewater production line according to claim 1, characterized in that: The fifth water pipe (213) is fixedly connected between the nanofiltration component (212) and the booster pump (215), the second water pipe (208) is fixedly connected between the reverse osmosis component (218) and the pure water collection barrel (207), and the sixth water pipe (221) is fixedly connected between the reverse osmosis component (218) and the booster pump (215).

5. The on-site online recycling device for heavy metal ion-containing cleaning wastewater production line according to claim 1, characterized in that: The first water outlet pipe (203), the water inlet pipe (206), and the second water outlet pipe (220) are respectively arranged on the metal concentrate collection barrel (202), the raw water barrel (201), and the reverse osmosis component (218), and the fourth regulating valve (219) is arranged in the middle of the second water outlet pipe (220).

6. The on-site online recycling device for heavy metal ion-containing cleaning wastewater production line according to claim 1, characterized in that: The branch pipe (222) is in communication with the sixth water pipe (221), the medicine tank (224) is fixedly connected to one end of the branch pipe (222) away from the sixth water pipe (221), and the medicine dosing metering pump (223) is arranged in the middle of the branch pipe (222).

7. The on-site online recycling device for heavy metal ion-containing cleaning wastewater production line according to claim 1, characterized in that: The first regulating valve (214), the second regulating valve (216), and the third regulating valve (217) are respectively arranged between the fifth water pipe (213), the third water pipe (210), and the second water pipe (208).

8. The on-site online recycling device for heavy metal ion-containing cleaning wastewater production line according to claim 1, characterized in that: The lower surface of the shell (1) is fixedly connected to a support leg (3), and a roller (4) is provided at the bottom of the support leg (3).

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