CN114133015A - Purification device for industrial wastewater treatment process - Google Patents
Purification device for industrial wastewater treatment process Download PDFInfo
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- CN114133015A CN114133015A CN202111536602.5A CN202111536602A CN114133015A CN 114133015 A CN114133015 A CN 114133015A CN 202111536602 A CN202111536602 A CN 202111536602A CN 114133015 A CN114133015 A CN 114133015A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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Abstract
The invention belongs to the technical field of wastewater treatment, and particularly relates to a purification device for an industrial wastewater treatment process. The acid-base neutralization tower, the filter unit for filtering the wastewater, the mixing tank unit which is arranged on the filter unit and connected with the acid-base neutralization tower and is used for carrying out acid-base neutralization treatment on the wastewater, and the turntable unit which is arranged on the mixing tank unit and is used for adjusting the water inflow rate of the wastewater and the acid-base neutralization tower play a role in regulating and controlling the neutralization flow rate of the acid-base wastewater. The invention has the advantages of simple structure, convenient installation, realization of simultaneous regulation and control of acid and alkali wastewater flow by only rotating the turntable in one step, no easy fluctuation of wastewater flow when the turntable is accidentally rotated due to the automatic unlocking device, realization of locking rotation regulation and control flow by only pushing the turntable in one step when the wastewater flow is required to be regulated, and automatic recovery and unlocking state recovery of the turntable after external force is relieved to the turntable.
Description
Technical Field
The invention belongs to the technical field of wastewater treatment, and particularly relates to a purification device for an industrial wastewater treatment process.
Background
The waste water treatment is a process method for treating waste water by physical, chemical and biological methods, purifying the waste water and reducing pollution so as to achieve the purposes of waste water recovery and reuse and fully utilize water resources. Acid-base wastewater is the most common wastewater treatment, wherein the acid wastewater mainly comes from steel plants, and the mass fraction of acid in the wastewater treatment is very different, the traditional treatment method generally performs neutralization by introducing alkaline wastewater discharged from printing and dyeing plants, leather plants and the like, but the problem is that the flow of the acid-base wastewater is not easy to control, so a wastewater treatment device with an acid-base wastewater neutralization flow regulation structure is urgently needed in the market.
Chinese utility model patent with publication number CN214880472U and publication date 2021-11-26 discloses an organic wastewater treatment device based on low energy consumption high voltage electric field, including the base, and set up steam collection tank and cooling box at base upside position, top surface one side of base is equipped with the processing jar, and the top surface fixed mounting of apron has sealed lid, the downside of sealed lid is equipped with rabbling mechanism, be connected with the inlet pipe on the apron outer wall, the seal pot has been cup jointed on the outer wall of processing jar, the upper end of seal pot is connected with a plurality of outlet ducts, the steam pot has been cup jointed on the outer wall of seal pot.
Although the utility model has the advantage of reasonably utilizing the heat generated by the acid-base neutralization reaction to drive the equipment to stir; but the utility model also has the defect that the flow regulation and control equipment for the acid-base solution is not provided.
Disclosure of Invention
The invention aims to provide a purification device for an industrial wastewater treatment process, which achieves the technical effect of regulating and controlling the neutralization flow of acid-base wastewater through an acid-base neutralization tower, a filter tank unit for filtering wastewater, a mixing tank unit which is arranged on the filter tank unit, connected with the acid-base neutralization tower and used for carrying out acid-base neutralization treatment on the wastewater, and a turntable unit which is arranged on the mixing tank unit and used for regulating the water inflow rate of the wastewater and the acid-base neutralization tower. The invention has the advantages of simple structure, convenient installation, realization of simultaneous regulation and control of acid and alkali wastewater flow by only rotating the turntable in one step, no easy fluctuation of wastewater flow when the turntable is accidentally rotated due to the automatic unlocking device, realization of locking rotation regulation and control flow by only pushing the turntable in one step when the wastewater flow is required to be regulated, and automatic recovery and unlocking state recovery of the turntable after external force is relieved to the turntable.
The technical scheme adopted by the invention for solving the problems is as follows: the purification device for the industrial wastewater treatment process comprises an acid-base neutralization tower, a filter tank unit for filtering wastewater, a mixing tank unit which is arranged on the filter tank unit and connected with the acid-base neutralization tower and used for carrying out acid-base neutralization treatment on the wastewater, and a turntable unit which is arranged on the mixing tank unit and used for adjusting the water inflow rate of the wastewater and the acid-base neutralization tower.
The further preferred technical scheme is as follows: the filter unit comprises a filter, a connecting pipe, a water outlet pipe and a filter screen, wherein the connecting pipe is arranged on the filter and used for connecting the mixing tank unit, the water outlet pipe is arranged on the filter, and the filter screen is arranged on the filter and used for filtering wastewater.
The further preferred technical scheme is as follows: the mixing tank unit comprises a mixing tank, a water inlet pipe and a drainage pipe, wherein the mixing tank is arranged on the upper top surface of the filter tank and communicated with the connecting pipe, the water inlet pipe is arranged on the mixing tank, and the drainage pipe is arranged on the mixing tank and used for connecting the acid-base neutralization tower.
The further preferred technical scheme is as follows: the mixing pool unit also comprises a turntable column hole for mounting the turntable unit and a fixed baffle arranged on the ring surface of the inner side of the drainage tube; the rotary table unit comprises a rotary table, a rotary table column part arranged on the rotary table and installed in the rotary table column hole, a transmission column arranged on the rotary table column part, and a movable baffle arranged on the transmission column and used for blocking water flow of the drainage tube.
The further preferred technical scheme is as follows: the mixing pool unit also comprises a mounting groove arranged on the water inlet pipe; the carousel unit is still including setting up just install on the carousel post portion sealed post on the mounting groove, and set up and be in guiding gutter on the sealed post.
The further preferred technical scheme is as follows: the mixing tank unit also comprises an annular groove arranged on the inner side surface of the mixing tank and an annular limiting groove arranged on the inner side surface of the annular groove; the rotary table unit further comprises a sealing plate arranged on the rotary table column part, a sealing ring arranged on the sealing plate and installed in the annular groove, and a limiting ring arranged on the sealing ring and installed in the annular limiting groove.
The further preferred technical scheme is as follows: the turntable column part comprises a movable column and a fixed column, the fixed column cavity in the fixed column is arranged on the fixed column and is communicated with the movable column hole in the fixed column cavity, the fixed limiting column is arranged on the inner side face of the fixed column cavity, the extending column in the movable column is arranged on the movable limiting column, the movable limiting column in the extending column is arranged in a limiting groove in the fixed limiting column, and the limiting block in the movable limiting column is arranged on the limiting column.
The further preferred technical scheme is as follows: the turntable column part further comprises a spring block arranged on the inner side face of the fixed column cavity, a spring groove arranged on the extension column, a spring arranged on the spring block and used for jacking the spring groove, and a blocking block arranged on the inner side face of the fixed column cavity and used for jacking the movable limiting column.
The further preferred technical scheme is as follows: the mixing tank unit also comprises a mixing tank guide plate arranged on the bottom surface of the inner side of the mixing tank.
The further preferred technical scheme is as follows: the filter unit also comprises a filter guide plate arranged on the bottom surface of the inner side of the filter.
The acid-base neutralization tower, the filter unit for filtering the wastewater, the mixing tank unit which is arranged on the filter unit and connected with the acid-base neutralization tower and is used for carrying out acid-base neutralization treatment on the wastewater, and the turntable unit which is arranged on the mixing tank unit and is used for adjusting the water inflow rate of the wastewater and the acid-base neutralization tower play a role in regulating and controlling the neutralization flow rate of the acid-base wastewater. The invention has the advantages of simple structure, convenient installation, realization of simultaneous regulation and control of acid and alkali wastewater flow by only rotating the turntable in one step, no easy fluctuation of wastewater flow when the turntable is accidentally rotated due to the automatic unlocking device, realization of locking rotation regulation and control flow by only pushing the turntable in one step when the wastewater flow is required to be regulated, and automatic recovery and unlocking state recovery of the turntable after external force is relieved to the turntable.
Drawings
FIG. 1 is a schematic view showing the overall structure of a wastewater purification apparatus according to the present invention.
FIG. 2 is a schematic structural diagram of internal parts of the filter chamber of the present invention.
FIG. 3 is a schematic view of the structure of the internal components of the mixing tank of the present invention.
Fig. 4 is a schematic structural view of the positional relationship between the fixed baffle and the movable baffle in the present invention.
FIG. 5 is a schematic structural view of the position relationship between the water inlet pipe and the sealing post and the arrangement of the diversion trench in the present invention.
Fig. 6 is a schematic structural view of a connection mode of the turntable column part and the turntable column hole in the invention.
FIG. 7 is a schematic structural view of a turret column of the present invention.
Detailed Description
The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.
Example (b): as shown in fig. 1, 2, 3, 4, 5, 6 and 7, a purification device for industrial wastewater treatment process comprises an acid-base neutralization tower 11, a filter tank unit 1 for filtering wastewater, a mixing tank unit 2 arranged on the filter tank unit 1 and connected with the acid-base neutralization tower 11 for performing acid-base neutralization treatment on wastewater, and a rotary disc unit 3 arranged on the mixing tank unit 2 for adjusting the water inlet flow of wastewater and the acid-base neutralization tower 11.
In this embodiment, the acid-base neutralization tower 11 stores a corresponding neutralizer according to the wastewater to be treated, when the neutralizer is used for treating acidic wastewater in steel plants and chemical plants, the neutralizer can be alkaline wastewater from printing and dyeing plants, leather plants, paper mills and oil refineries, and when the wastewater is treated, organic base or inorganic base in the alkaline wastewater and organic acid and inorganic acid in the acidic wastewater are neutralized and reacted to form neutral wastewater, so that the neutral wastewater is convenient for the next treatment.
In addition, the mixing tank unit 2 is used as a mixing place for the acidic wastewater and the alkaline wastewater, the neutralized wastewater enters the filter tank unit 1, is further filtered by a filter screen, and is finally discharged, and the rotary disc unit 3 is arranged on the mixing tank unit 2 and is used for adjusting the discharge amount of the acidic wastewater and the alkaline wastewater.
The filter tank unit 1 comprises a filter tank 101, a connecting pipe 102 arranged on the filter tank 101 and used for connecting the mixing tank unit 2, a water outlet pipe 103 arranged on the filter tank 101, and a filter screen 104 arranged on the filter tank 101 and used for filtering wastewater.
In this embodiment, the filter tank 101 is communicated with the mixing tank unit 2 through the connecting pipe 102, so that the neutralized wastewater enters the filter tank 101 through the connecting pipe 102, and the filter screen 104 is used for removing large-particle impurities in the neutralized wastewater and finally discharging the neutralized wastewater out of the filter tank 101 through the water outlet pipe 103.
The mixing tank unit 2 comprises a mixing tank 201 which is arranged on the top surface of the filter tank 101 and is communicated with the connecting pipe 102, a water inlet pipe 202 which is arranged on the mixing tank 201, and a drainage pipe 203 which is arranged on the mixing tank 201 and is used for connecting the acid-base neutralization tower 11.
In this embodiment, the acidic wastewater enters the mixing tank 201 through the inlet pipe 202, the alkaline wastewater enters the mixing tank 201 from the acid-base neutralization tower 11 through the drainage pipe 203, and the alkaline wastewater in the mixing tank 201 and the acidic wastewater are neutralized to form neutral wastewater.
The mixing pool unit 2 also comprises a rotary disc column hole 204 for mounting the rotary disc unit 3 and a fixed baffle 205 arranged on the inner annular surface of the drainage tube 203; the turntable unit 3 comprises a turntable 301, a turntable column part 302 arranged on the turntable 301 and installed in the turntable column hole 204, a transmission column 303 arranged on the turntable column part 302, and a movable baffle 304 arranged on the transmission column 303 and used for blocking the water flow of the drainage tube 203.
In this embodiment, when the turntable 301 is rotated, the turntable column 302 rotates and drives the transmission column 303 to rotate, the fixed baffle 205 and the movable baffle 304 are both semicircular, when the turntable 301 does not rotate, the fixed baffle 205 and the movable baffle 304 form a complete circle when viewed from the direction of the turntable column 302, so as to completely prevent the alkaline wastewater in the acid-base neutralization tower 11 from entering the mixing tank 201, when the turntable 301 is rotated, the fixed baffle 205 and the movable baffle 304 are dislocated to form a gap through which the alkaline wastewater enters the mixing tank 201, when the turntable 301 is continuously rotated, the gap is increased, the flow rate of the alkaline wastewater entering the mixing tank 201 is increased, when the fixed baffle 205 and the movable baffle 304 are completely overlapped when viewed from the direction of the turntable column 302, the flow rate of the alkaline wastewater into the mixing tank 201 is maximized.
The mixing tank unit 2 further comprises a mounting groove 206 arranged on the water inlet pipe 202; the turntable unit 3 further includes a sealing post 305 disposed on the turntable post portion 302 and mounted on the mounting groove 206, and a guide groove 306 disposed on the sealing post 207.
In this embodiment, the mounting grooves 206 are disposed on the left and right sides of the bottom of the water inlet pipe 202, and have a width slightly wider than that of the sealing column 305, so that the arc-shaped sides of the sealing column 305 are just mounted in the mounting grooves 206 and block the bottom water inlet of the water inlet pipe 202.
In addition, the guiding gutters 306 are arranged on the arc-shaped side surface of the sealing column 305 in an annular array manner, when the rotary table 301 is rotated, the guiding gutters 306 enter the lower end of the water inlet pipe 202 through the mounting grooves 206, and form a gap with the side surface of the water inlet pipe 202, so that the acidic wastewater flows out, when the rotary table 301 is continuously rotated, the gap is increased, when all the guiding gutters 306 are positioned at the lower end of the water inlet pipe 202, the formed gap is maximized, and the flow rate of the acidic wastewater is maximized at the moment.
In addition, the simultaneous control of the flow of the acidic wastewater and the alkaline wastewater can be realized by one action of rotating the turntable 301, so that the operation process is simpler and more accurate in control of the flow.
The mixing tank unit 2 further comprises an annular groove 207 arranged on the inner side surface of the mixing tank 201, and an annular limiting groove 208 arranged on the inner side surface of the annular groove 207; the turntable unit 3 further includes a sealing plate 307 provided on the turntable column portion 302, a sealing ring 308 provided on the sealing plate 307 and installed in the annular groove 207, and a retainer ring 309 provided on the sealing ring 308 and installed in the annular retainer groove 208.
In this embodiment, the sealing plate 307 is disposed closely to the inner side surface of the mixing tank 201 to prevent the neutralized wastewater from leaking from the turntable column hole 204, and the sealing ring 308 is engaged with the annular groove 207, so that the sealing plate 307 and the inner side surface of the mixing tank 201 can still be closely attached together in the process of rotating the turntable column 302.
The turntable column portion 302 comprises a movable column 302a and a fixed column 302b, a fixed column cavity 302c arranged on the fixed column 302b, a movable column hole 302d arranged on the fixed column 302b and communicated with the fixed column cavity 302c, a fixed limiting column 302e arranged on the inner side surface of the fixed column cavity 302c, an extending column 302f arranged on the movable column 302a, a movable limiting column 302g arranged on the extending column 302f, a limiting groove 302h arranged on the fixed limiting column 302e, and a limiting block 302i arranged on the movable limiting column 302 g.
In this embodiment, in order to avoid the flow rate change caused by the accidental rotation of the turntable 301, the turntable 301 needs to be pushed inward first when the flow rate is adjusted by rotation, when the turntable 301 is pushed inward, the movable post 302a moves toward the fixed post cavity 302c through the movable post hole 302d, so that the movable limiting post 302g moves toward the fixed limiting post 302e, and when the limiting block 302i is engaged with the limiting groove 302h, the turntable 301 is rotated again, so that the movable post 302a drives the fixed post 302b to rotate, thereby driving the sealing post 305 and the transmission post 303 fixed on the fixed post 302b to rotate, and finally achieving the flow rate adjustment function.
In addition, due to the clamping action of the limiting ring 309 in the annular limiting groove 208, the position of the fixing column 302b is still unchanged when the rotating disc 301 is pushed inwards.
The turntable column portion 302 further comprises a spring block 302j arranged on the inner side surface of the fixed column cavity 302c, a spring slot 302k arranged on the extension column 302f, a spring 302m arranged on the spring block 302j and used for jacking up the spring slot 302k, and a stop block 302n arranged on the inner side surface of the fixed column cavity 302c and used for jacking up the movable limit column 302 g.
In this embodiment, if the dial 301 is released from the flow rate adjusting function, the dial 301 is simply pressed inward, and when the dial 301 is released, the spring 302m abuts against the spring block 302j and pushes up the inner side surface of the spring groove 302k outward, so that the stopper 302i is disengaged from the stopper groove 302h, and thus the movable post 302a cannot drive the fixed post 302b to rotate even if the dial 301 is rotated.
The mixing tank unit 2 further includes a mixing tank baffle 209 disposed on the bottom surface of the inside of the mixing tank 201.
In this embodiment, the mixing tank baffle 209 allows the neutralized wastewater to collect at the bottom at the upper end of the connecting pipe 102 to flow into the filter tank 101.
The filter unit 1 further comprises a filter guide plate 105 arranged on the bottom surface of the inner side of the filter 101.
In this embodiment, the filter flow guide plate 105 makes the filtered waste water collect at the bottom of the outlet pipe 103 side for flowing out of the filter 101.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. These are non-inventive modifications, which are intended to be protected by patent laws within the scope of the claims appended hereto.
Claims (10)
1. A purifier for industrial waste water treatment process, includes acid-base neutralization tower (11), characterized by, still include the filtering pond unit (1) that is used for filtering waste water, set up on filtering pond unit (1) and with acid-base neutralization tower (11) are connected and are used for carrying out acid-base neutralization treatment to waste water mixing pond unit (2), and set up on mixing pond unit (2) and be used for adjusting waste water with carousel unit (3) of acid-base neutralization tower (11) inflow.
2. A purification apparatus for industrial wastewater treatment process according to claim 1, wherein the filter tank unit (1) comprises a filter tank (101), a connection pipe (102) provided on the filter tank (101) for connecting the mixing tank unit (2), an outlet pipe (103) provided on the filter tank (101), and a filter screen (104) provided on the filter tank (101) for filtering wastewater.
3. A purification apparatus for industrial wastewater treatment process according to claim 2, wherein the mixing tank unit (2) comprises a mixing tank (201) disposed on the upper surface of the filtering tank (101) and communicating with the connection pipe (102), a water inlet pipe (202) disposed on the mixing tank (201), and a draft pipe (203) disposed on the mixing tank (201) and connecting the acid-base neutralization tower (11).
4. A purification apparatus for industrial wastewater treatment process according to claim 3, characterized in that the mixing tank unit (2) further comprises a turntable column hole (204) for installing the turntable unit (3), and a fixed baffle (205) provided on the inner side annulus of the draft tube (203); the rotary table unit (3) comprises a rotary table (301), a rotary table column part (302) arranged on the rotary table (301) and installed in the rotary table column hole (204), a transmission column (303) arranged on the rotary table column part (302), and a movable baffle (304) arranged on the transmission column (303) and used for blocking the water flow of the drainage tube (203).
5. The purification apparatus for industrial wastewater treatment process according to claim 4, wherein the mixing tank unit (2) further comprises a mounting groove (206) provided on the inlet pipe (202); the rotary table unit (3) further comprises a sealing column (305) arranged on the rotary table column part (302) and mounted on the mounting groove (206), and a diversion groove (306) arranged on the sealing column (207).
6. The purification apparatus for industrial wastewater treatment process according to claim 4, wherein the mixing tank unit (2) further comprises an annular groove (207) provided on the inner side surface of the mixing tank (201), an annular limiting groove (208) provided on the inner side surface of the annular groove (207); the turntable unit (3) further comprises a sealing plate (307) arranged on the turntable column part (302), a sealing ring (308) arranged on the sealing plate (307) and installed in the annular groove (207), and a limit ring (309) arranged on the sealing ring (308) and installed in the annular limit groove (208).
7. The purification device for industrial wastewater treatment process according to claim 4, wherein the turntable column part (302) comprises a movable column (302 a) and a fixed column (302 b), a fixed column cavity (302 c) disposed on the fixed column (302 b), a movable column hole (302 d) disposed on the fixed column (302 b) and communicated with the fixed column cavity (302 c), a fixed limiting column (302 e) disposed on the inner side surface of the fixed column cavity (302 c), an extending column (302 f) disposed on the movable column (302 a), a movable limiting column (302 g) disposed on the extending column (302 f), a limiting groove (302 h) disposed on the fixed limiting column (302 e), and a limiting block (302 i) disposed on the movable limiting column (302 g).
8. The purification apparatus for industrial wastewater treatment process according to claim 7, wherein the turntable column part (302) further comprises a spring block (302 j) disposed on the inner side surface of the fixed column cavity (302 c), a spring groove (302 k) disposed on the extension column (302 f), a spring (302 m) disposed on the spring block (302 j) for jacking up the spring groove (302 k), and a blocking block (302 n) disposed on the inner side surface of the fixed column cavity (302 c) for jacking up the movable limit column (302 g).
9. A purification apparatus for industrial wastewater treatment process according to claim 3, characterized in that the mixing tank unit (2) further comprises a mixing tank baffle plate (209) disposed on the inner bottom surface of the mixing tank (201).
10. A purification apparatus for industrial wastewater treatment process according to claim 3, wherein said filter tank unit (1) further comprises a filter tank baffle plate (105) provided on the inner bottom surface of said filter tank (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111536602.5A CN114133015A (en) | 2021-12-16 | 2021-12-16 | Purification device for industrial wastewater treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111536602.5A CN114133015A (en) | 2021-12-16 | 2021-12-16 | Purification device for industrial wastewater treatment process |
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| Publication Number | Publication Date |
|---|---|
| CN114133015A true CN114133015A (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111536602.5A Pending CN114133015A (en) | 2021-12-16 | 2021-12-16 | Purification device for industrial wastewater treatment process |
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| CN (1) | CN114133015A (en) |
Citations (7)
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| CN2095980U (en) * | 1990-07-17 | 1992-02-12 | 昆明冶金研究所 | Simple adjustable valve |
| CN102313019A (en) * | 2011-08-04 | 2012-01-11 | 丹东克隆集团有限责任公司 | Friction ring type water sealing device |
| CN203067815U (en) * | 2012-07-20 | 2013-07-17 | 江苏晋煤恒盛化工股份有限公司 | Valve for exhausting synthesis ammonia liquid |
| CN204099625U (en) * | 2014-07-23 | 2015-01-14 | 天津明贤科技有限公司 | A kind of proportion adjustment valve |
| CN209065620U (en) * | 2018-11-17 | 2019-07-05 | 上海摩威环境科技股份有限公司 | A kind of industrial waste water disposal device |
| CN112197004A (en) * | 2020-10-12 | 2021-01-08 | 江门市新会区天府密封科技有限公司 | Prevent mechanical seal subassembly of leakage |
| CN213954411U (en) * | 2020-11-27 | 2021-08-13 | 河南网通实业有限公司 | Plastic ball valve with screw |
-
2021
- 2021-12-16 CN CN202111536602.5A patent/CN114133015A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2095980U (en) * | 1990-07-17 | 1992-02-12 | 昆明冶金研究所 | Simple adjustable valve |
| CN102313019A (en) * | 2011-08-04 | 2012-01-11 | 丹东克隆集团有限责任公司 | Friction ring type water sealing device |
| CN203067815U (en) * | 2012-07-20 | 2013-07-17 | 江苏晋煤恒盛化工股份有限公司 | Valve for exhausting synthesis ammonia liquid |
| CN204099625U (en) * | 2014-07-23 | 2015-01-14 | 天津明贤科技有限公司 | A kind of proportion adjustment valve |
| CN209065620U (en) * | 2018-11-17 | 2019-07-05 | 上海摩威环境科技股份有限公司 | A kind of industrial waste water disposal device |
| CN112197004A (en) * | 2020-10-12 | 2021-01-08 | 江门市新会区天府密封科技有限公司 | Prevent mechanical seal subassembly of leakage |
| CN213954411U (en) * | 2020-11-27 | 2021-08-13 | 河南网通实业有限公司 | Plastic ball valve with screw |
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