Defoaming device for cleaning section
By installing a defoaming device in the cleaning section, and utilizing a defoaming impeller and an automatic control system, the problems of low cleaning efficiency and environmental pollution caused by alkaline solution circulation foam are solved, achieving the effects of efficient defoaming and saving alkaline solution.
Patent Information
- Application Number
- CN202520650938.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-09
AI Technical Summary
In the existing hot-dip galvanizing cleaning process, the circulation of alkaline solution in the cleaning section generates foam, which leads to reduced cleaning efficiency, waste of alkaline solution, and environmental pollution.
A defoaming device for the cleaning section was designed, comprising a defoaming tank, a vacuum pump, a foam suction head, and a defoaming impeller. It is connected to the water inlet pipe through a defoaming sleeve, uses the defoaming impeller to break up the foam, and achieves integrated drainage and return through a drain pipe, a return pipe, and a return pump. It is automatically controlled by a magnetic level gauge and a foam sensor.
It improves foam defoaming efficiency, reduces alkali waste, prevents environmental pollution, and enhances the working efficiency of the cleaning section.
Smart Images
Figure CN223951132U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hot galvanizing cleaning technical field, concretely relates to a cleaning section defoaming device. BACKGROUND
[0002] Hot galvanizing raw material is usually steel strip after pickling and cold rolling, and the surface of the strip after the above treatment has residual grease and tiny iron powder particles, the treatment method in the prior art is to pre-clean the strip by alkali solution in the cleaning section, rinse by electrolytic clean water, and then enter the furnace area for annealing after drying, which can remove the grease and iron powder particles on the surface of the strip to the maximum extent, but the interior of the tank body such as alkali washing tank, electrolytic tank and mixing tank in the cleaning section in the prior art often produces foam due to alkali solution circulation, that is, the commonly known foam generating tank body, which not only affects the working efficiency of cleaning, but also causes problems such as alkali solution waste, foam overflow and environmental pollution. CONTENT OF THE UTILITY MODEL
[0003] In order to overcome the problems of single function, inconvenience of use and poor stability of the traditional navigator, the utility model provides a cleaning section defoaming device.
[0004] The utility model discloses a technical scheme adopted for realizing the above-mentioned purpose is: a cleaning section defoaming device, including defoaming tank, vacuum pump and bubble suction head, defoaming tank includes tank body, is equipped with motor on the tank body, and the motor output end is connected with transmission shaft, and the transmission shaft passes through the upper surface of the tank body, and extends to the upper part in the tank body, and the upper part in the tank body is equipped with defoaming sleeve, and the defoaming sleeve is equipped with defoaming impeller, and the defoaming impeller is connected with transmission shaft, and the tank body is equipped with water inlet pipe that communicates with the upper end of defoaming sleeve, and the lower part of tank body is equipped with first drain pipe, and the water inlet pipe is connected with bubble suction head through vacuum pipe, and the bubble suction head extends into foam generating tank body, and the vacuum pump communicates with tank body.
[0005] Preferably, it further includes a magnetic flap liquid level meter, a first foam sensor and a second foam sensor, the magnetic flap liquid level meter is connected with the tank body, the first foam sensor is arranged in the foam generating tank body, and the second foam sensor is arranged in the tank body.
[0006] Preferably, the end of the first drain pipe away from the tank body is provided with a drain valve, the end of the first drain pipe close to the tank body is provided with a backflow pipe communicated with the first drain pipe, the backflow pipe is provided with a backflow pump and a deslag valve, a plurality of branch pipes are arranged behind the backflow pump, one end of each branch pipe is communicated with the backflow pipe, and the other end is communicated with the foam generating tank body, and a backflow valve is arranged on each branch pipe.
[0007] Preferably, a vacuum degree detector is arranged on the tank body.
[0008] Preferably, the end of the vacuum pipe is provided with a bubble suction valve.
[0009] Preferably, the deslag valve is a hexagonal ball valve, and the drain valve, the bubble suction valve and the backflow valve are all electrically controlled valves.
[0010] Preferably, the control system comprises a PLC, a first frequency converter, a second frequency converter and a contactor, the PLC is electrically connected with the first frequency converter, the second frequency converter and the contactor, the first frequency converter is electrically connected with the motor, the second frequency converter is electrically connected with the vacuum pump, the contactor is electrically connected with the backflow pump, and the PLC is electrically connected with the magnetic flap liquid level meter, the first foam sensor and the second foam sensor, the vacuum degree detection instrument, the drainage valve, the suction valve and the backflow valve respectively.
[0011] Preferably, the suction head comprises a conical supporting shell, a plurality of floating boxes are arranged at the lower end edge of the supporting shell, a second drainage pipe is arranged at the upper end of the supporting shell and communicates with the inside of the supporting shell, a steel wire hose is arranged between the second drainage pipe and the vacuum pipe, a through hole is arranged on the foam generating box body, a sleeve is arranged in the through hole, and the second drainage pipe is arranged in the sleeve.
[0012] Preferably, a counterweight cylinder is arranged on the foam generating box body, a supporting frame is arranged above the counterweight cylinder, a fixed pulley and a rope are arranged on the supporting frame, a movable pulley is arranged below the fixed pulley, the output end of the counterweight cylinder is connected with the movable pulley, one end of the rope is fixed on the supporting frame, the other end of the rope passes through the fixed pulley and the movable pulley in sequence and is connected with the second drainage pipe, and the PLC is electrically connected with the counterweight cylinder.
[0013] Preferably, an inclined slope is arranged at the inner bottom of the tank body.
[0014] Compared with the prior art, the utility model has the beneficial effect that the defoaming impeller and the defoaming sleeve are arranged in the tank body, the defoaming sleeve is communicated with the water inlet pipe, the foam can directly enter the defoaming sleeve through the water inlet pipe, the foam is directly broken by the defoaming impeller and directly flows into the bottom of the tank body, the arrangement of the defoaming sleeve can improve the direct contact between the foam and the defoaming impeller and improve the defoaming efficiency, the drainage pipe, the backflow pipe and the backflow pump are arranged, the functions of drainage and backflow can be realized, the suction head with the floating box is arranged, the buoyancy of the suction head can be increased, and the suction head can more easily float on the foam. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a cleaning section defoaming device of the utility model.
[0016] Figure 2 It is a cleaning section defoaming device of the utility model. Figure 1 It is a cleaning section defoaming device of the utility model.
[0017] Figure 3 It is a cleaning section defoaming device of the utility model.
[0018] Figure 4 It is a cleaning section defoaming device of the utility model.
[0019] Figure 5 This is a partial structural diagram of the defoaming tank of a cleaning section defoaming device according to this utility model.
[0020] Figure 6 This is a schematic diagram of the foam suction head structure of a defoaming device for the cleaning section according to this utility model.
[0021] Figure 7 This is a schematic diagram of the connection relationship of the control system of the defoaming device in the cleaning section of this utility model.
[0022] In the diagram: 1. Defoaming tank; 101. Tank body; 102. Motor; 103. Drive shaft; 104. Defoaming sleeve; 105. Defoaming impeller; 106. Inlet pipe; 107. First drain pipe; 108. Slope; 2. Vacuum pump; 3. Foam suction head; 301. Support shell; 302. Floating box; 303. Second drain pipe; 4. Vacuum tube; 5. Foam generating box; 6. First foam sensor; 7. Return pipe; 8. Return pump; 9. Branch pipe; 10. Control system; 11. Foam suction valve; 12. Drain valve; 13. Magnetic level gauge; 14. Slag discharge valve; 15. Connecting pipe; 16. Return valve; 17. Sleeve; 18. Steel wire hose; 19. Support frame; 20. Counterweight cylinder; 21. Moving pulley; 22. Fixed pulley; 23. Rope. Detailed Implementation
[0023] The specific embodiments of this utility model are as follows: Figures 1 to 7As shown, including defoaming tank 1, vacuum pump 2 and suction bubble head 3, defoaming tank 1 includes tank body 101, which is provided with vacuum degree detector, motor 102 is arranged on the tank body 101, the output end of motor 102 is connected with transmission shaft 103, transmission shaft 103 penetrates the upper surface of tank body 101, extends to the upper part of tank body 101, the upper part of tank body 101 is provided with defoaming sleeve 104, defoaming impeller 105 is arranged in defoaming sleeve 104, defoaming impeller 105 is connected with transmission shaft 103, tank body 101 is provided with water inlet pipe 106 which is communicated with the upper end of defoaming sleeve 104, the bottom of tank body 101 is provided with slope 108, the lower part of tank body 101 is provided with first drain pipe 107, the setting of slope 108 can accelerate the discharge of liquid, the end of first drain pipe 107 away from tank body 101 is provided with drain valve 12, the end of first drain pipe 107 close to tank body 101 is provided with backflow pipe 7 which is communicated with first drain pipe 107, backflow pump 8 and deslagging valve 14 are arranged on backflow pipe 7, a plurality of branch pipes 9 are arranged behind backflow pump 8, the number of branch pipes 9 can be determined according to the number of foam generating box 5, one end of branch pipe 9 is communicated with backflow pipe 7, the other end is communicated with foam generating box 5, backflow valve 16 is arranged on each branch pipe 9, water inlet pipe 106 is connected with suction bubble head 3 through vacuum pipe 4, suction bubble head 3 includes conical support shell 301, a plurality of floating boxes 302 are arranged on the lower end edge of support shell 301, second drain pipe 303 which is communicated with the inside of support shell 301 is arranged on the upper end of support shell 301, steel wire hose 18 is connected between second drain pipe 303 and vacuum pipe 4, through hole is arranged on foam generating box 5, sleeve 17 is arranged in the through hole, second drain pipe 303 is slidingly arranged in sleeve 17, the end of vacuum pipe 4 is provided with suction bubble valve 11, suction bubble head 3 extends into foam generating box 5, vacuum pump 2 is communicated with tank body 101 through connecting pipe 15; It also includes magnetic flap liquid level meter 13, first foam sensor 6 and second foam sensor, magnetic flap liquid level meter 13 is connected with tank body 101, first foam sensor 6 is arranged in foam generating box 5, second foam sensor is arranged in tank body 101; Deslagging valve 14 is hexagonal ball valve, drain valve 12, suction bubble valve 11 and backflow valve 16 are all electrically controlled valves;
[0024] Counterweight cylinder 20 is arranged on foam generating box 5, support frame 19 is arranged above counterweight cylinder 20, fixed pulley 22 and rope 23 are arranged on support frame 19, movable pulley 21 is arranged below fixed pulley 22, the output end of counterweight cylinder 20 is connected with movable pulley 21, one end of rope 23 is fixed on support frame 19, the other end of rope 23 is connected with second drain pipe 303 in sequence through fixed pulley 22 and movable pulley 21;
[0025] Also include control system 10, control system 10 includes PLC, the first frequency converter, the second frequency converter and contactor, PLC is electrically connected with the first frequency converter, the second frequency converter and contactor, the first frequency converter is electrically connected with motor 102, the second frequency converter is electrically connected with vacuum pump 2, contactor is electrically connected with backflow pump 8, PLC is electrically connected with magnetic flap liquid level meter 13, first foam sensor 6 and second foam sensor respectively, vacuum degree detection instrument, drain valve 12, suction valve 11 and backflow valve 16, PLC is also electrically connected with counterweight cylinder 20.
[0026] Control system 10 program part is divided into signal acquisition and processing module, mechanical defoaming machine control module, vacuum pump control module, liquid treatment module, fault diagnosis module and integrated scheduling module according to function, signal acquisition module is used to collect the data of magnetic flap liquid level meter 13, first foam sensor 6, second foam sensor, vacuum degree detection instrument, and according to the data, the liquid level, whether the foam is sparse or dense and the vacuum degree of tank body 101 are judged, mechanical defoaming machine control module is used to calculate whether the motor 102 should speed up or slow down according to the foam density, so that the control system 10 can control the speed of the motor 102, vacuum pump control module is used to calculate whether the vacuum pump 2 should speed up or slow down according to the vacuum degree value in the tank and the foam density, so that the control system 10 can control the running power of the vacuum pump 2, liquid treatment module is according to the liquid treatment mode, whether backflow or discharge to the outside of tank body 101, so that the control system 10 controls the on-off of backflow pump 8, backflow valve 16 and drain valve 12, fault diagnosis module is used to judge whether vacuum pump 2, first foam sensor 6, second foam sensor, vacuum degree detection instrument, drain valve 12, suction valve 11 and backflow valve 16, counterweight cylinder 20 and other devices are running normally, and is used to display fault information, integrated scheduling module is used to schedule the logical relationship between vacuum pump 2, first foam sensor 6, second foam sensor, vacuum degree detection instrument, drain valve 12, suction valve 11 and backflow valve 16, counterweight cylinder 20, to avoid the operation conflict of each sub device.
[0027] Working process: when the first foam sensor 6 detects the foam generated in the foam generating box 5, the foam position signal is transmitted to the control system 10, the PLC in the control system 10 controls the suction valve 11 to open, and the vacuum pump 2 is started, the vacuum degree detector transmits the vacuum degree value in the tank body 101 to the control system 10, and the signal acquisition and processing module of the control system 10 judges the foam density according to the vacuum degree value, and the vacuum pump 2 controlled by the second frequency converter is used to vacuumize the tank body 101, the tank body 101 is used to suck the foam in the foam generating box 5 into the defoaming sleeve 104 through the vacuum pipe 4 and the suction head 3, the control system 10 controls the motor 102 on the tank body 101 to start, the motor 102 drives the defoaming impeller 105 to rotate through the transmission shaft 103, the foam is broken, and the broken liquid flows into the tank body 101 along the inner wall of the defoaming sleeve 104, the second foam sensor detects whether there is unbroken foam in the tank body 101, and transmits the signal to the PLC, and judges the vacuum degree value and the density collected by the vacuum pump control module, and the PLC improves the power of the motor 102 through the first frequency converter to speed up the defoaming efficiency, the magnetic reed liquid level meter 13 in the tank body 101 detects the liquid level signal in the tank body and transmits it to the control system 10, and judges according to the liquid treatment module, if the liquid needs to be discharged, the control system 10 controls the drain valve 12 to open, and the liquid in the tank body 101 is discharged, if the liquid needs to be returned, the control system 10 controls the return valve 16 to open, the drain valve 12 is closed, and the return pump 8 is started at the same time, the return pump 8 pumps the liquid in the tank body 101 into the foam generating box 5, and the return process will produce sediment, if the slag needs to be discharged, the slag discharge valve 14 is manually opened; the first foam sensor 6 senses the foam position, transmits the signal to the control system 10, and the control system controls the counterweight cylinder 20 to start, the counterweight cylinder 20 pulls the movable pulley 21, and the second drain pipe 303 is pulled up or lowered along the sleeve 17 through the rope 23, so that the position of the suction head 3 is adjusted.
Claims
1. A cleaning section defoaming device characterized by, The device comprises a defoaming tank (1), a vacuum pump (2) and a bubble suction head (3), the defoaming tank (1) comprises a tank body (101), a motor (102) is arranged on the tank body (101), a transmission shaft (103) is connected to the output end of the motor (102), the transmission shaft (103) penetrates through the upper surface of the tank body (101) and extends to the upper part of the tank body (101), a defoaming sleeve (104) is arranged in the upper part of the tank body (101), a defoaming impeller (105) is arranged in the defoaming sleeve (104), the defoaming impeller (105) is connected to the transmission shaft (103), a water inlet pipe (106) is arranged on the tank body (101) and is communicated with the upper end of the defoaming sleeve (104), a first drain pipe (107) is arranged at the lower part of the tank body (101), the water inlet pipe (106) is connected to the bubble suction head (3) through a vacuum pipe (4), the bubble suction head (3) extends into a foam generating box (5), and the vacuum pump (2) is communicated with the tank body (101).
2. A defoaming device for a cleaning section according to claim 1, characterized in that The device further comprises a magnetic flap liquid level meter (13), a first foam sensor (6) and a second foam sensor, the magnetic flap liquid level meter (13) is connected to the tank body (101), the first foam sensor (6) is arranged in the foam generating box (5), and the second foam sensor is arranged in the tank body (101).
3. A defoaming device for a cleaning section according to claim 2, characterized in that A drain valve (12) is arranged at the end of the first drain pipe (107) away from the tank body (101), a backflow pipe (7) is arranged at the end of the first drain pipe (107) close to the tank body (101) and is communicated with the first drain pipe (107), a backflow pump (8) and a deslagging valve (14) are arranged on the backflow pipe (7), a plurality of branch pipes (9) are arranged behind the backflow pump (8), one end of each branch pipe (9) is communicated with the backflow pipe (7), the other end of each branch pipe (9) is communicated with the foam generating box (5), and a backflow valve (16) is arranged on each branch pipe (9).
4. A defoaming device for a cleaning section according to claim 3, characterized in that A vacuum degree detector is arranged on the tank body (101).
5. A defoaming device for a cleaning section according to claim 4, characterized in that The end of the vacuum pipe (4) is provided with a bubble suction valve (11).
6. A defoaming device for a cleaning section according to claim 5, characterized in that The deslagging valve (14) is a hexagonal ball valve, and the drain valve (12), the bubble suction valve (11) and the backflow valve (16) are electrically controlled valves.
7. A defoaming device for a cleaning section according to claim 6, characterized in that The device further comprises a control system (10), the control system (10) comprises a PLC, a first frequency converter, a second frequency converter and a contactor, the PLC is electrically connected with the first frequency converter, the second frequency converter and the contactor, the first frequency converter is electrically connected with the motor (102), the second frequency converter is electrically connected with the vacuum pump (2), the contactor is electrically connected with the backflow pump (8), and the PLC is electrically connected with the magnetic flap liquid level meter (13), the first foam sensor (6) and the second foam sensor, the vacuum degree detector, the drain valve (12), the bubble suction valve (11) and the backflow valve (16) respectively.
8. A defoaming device for a cleaning section according to claim 1, characterized in that The bubble suction head comprises a conical supporting shell (301), a plurality of floating boxes (302) are arranged at the lower end edge of the supporting shell (301), a second drain pipe (303) is arranged at the upper end of the supporting shell (301) and is communicated with the inside of the supporting shell (301), the second drain pipe (303) is connected with the vacuum pipe (4) through a steel wire hose (18), a through hole is arranged on the foam generating box (5), a sleeve (17) is arranged in the through hole, and the second drain pipe (303) is arranged in the sleeve (17).
9. A defoaming device for a cleaning section according to claim 7, characterized in that The foam generating box (5) is provided with a counterweight cylinder (20), the upper portion of the counterweight cylinder (20) is provided with a support frame (19), the support frame (19) is provided with a fixed pulley (22) and a rope (23), the lower portion of the fixed pulley (22) is provided with a movable pulley (21), the output end of the counterweight cylinder (20) is connected with the movable pulley (21), one end of the rope (23) is fixed on the support frame (19), the other end of the rope (23) is connected with the second drain pipe (303) in sequence through the fixed pulley (22) and the movable pulley (21), and the PLC is electrically connected with the counterweight cylinder (20).
10. A defoaming device for a cleaning section according to claim 2, characterized in that The inner bottom of the tank body (101) is provided with a slope (108).