CN-122010217-A - Evaporation crystallization treatment device for zero discharge of high-salt wastewater

CN122010217ACN 122010217 ACN122010217 ACN 122010217ACN-122010217-A

Abstract

The invention relates to an evaporation crystallization treatment device for zero discharge of high-salt wastewater, which relates to the technical field of water pollution treatment, wherein the bottom of a distillation kettle body is provided with a steam heating system, one end of the distillation kettle body is provided with a crystallization concentrate discharge port, the other end of the distillation kettle body is provided with a waste liquid inlet pipe and a steam outlet, a rectangular stirring shaft is rotatably arranged in the distillation kettle body, two ends of the rectangular stirring shaft are in cylindrical structures, and the cylindrical structure of one end is connected with a stirring piece power driving assembly outside the distillation kettle body; the rectangular stirring shaft is provided with a plurality of stirring crushing pieces, the stirring crushing pieces are arranged in pairs, two stirring crushing pieces in each group are arranged in a staggered mode, are connected in a magnetic attraction mode and are fixed on the rectangular stirring shaft by locking pieces, and two adjacent stirring crushing pieces are distributed in a cross-shaped cross mode.

Inventors

YI WEIFENG
ZHOU QIAO
WANG JUAN
WEI TIANTIAN
XU XIAOYAN

Assignees

江苏瑞达环保科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260415

Claims (9)

1. A zero-emission evaporation crystallization treatment device for high-salt wastewater is characterized by comprising a distillation kettle body (1), wherein a steam heating system (2) is arranged at the bottom of the distillation kettle body (1), a crystallization concentrate discharge port (3) is arranged at one end of the distillation kettle body (1), a waste liquid inlet pipe (5) and a steam outlet (6) are arranged at the other end of the distillation kettle body, a rectangular stirring shaft (7) is rotatably arranged in the distillation kettle body (1), two ends of the rectangular stirring shaft (7) are of cylindrical structures, the cylindrical structure of one end is connected with a stirring piece power driving assembly (4) outside the distillation kettle body (1), a plurality of stirring crushing pieces (8) are arranged on the rectangular stirring shaft (7), the stirring crushing pieces (8) are arranged in a group in pairs, two stirring crushing pieces (8) in each group are arranged in a staggered mode, are connected in a magnetic manner, and are fixed on the rectangular stirring shaft (7) through locking pieces (11), and the two adjacent stirring crushing pieces (8) are in a cross distribution.
2. The evaporation crystallization treatment device for zero discharge of high-salt wastewater according to claim 1 is characterized in that the stirring crushing piece (8) comprises a stirring rod (9) and crushing blades (10), the stirring rod (9) is U-shaped, a plurality of crushing blades (10) are arranged on the transverse edge of the stirring rod, two longitudinal rods of the stirring rod (9) are movably sleeved on a rectangular stirring shaft (7) by utilizing a rectangular sleeve ring (20), and an electromagnetic ring I (17) and an electromagnetic ring II (18) are respectively fixed on the left side surface and the right side surface of the rectangular sleeve ring (20).
3. The evaporative crystallization treatment device for zero discharge of high-salt wastewater according to claim 2, wherein a group of stirring crushing members (8) are provided with eight locking members (11), and the eight locking members (11) are respectively distributed on the rectangular stirring shaft (7) in two, four and two adjacent ways.
4. The evaporative crystallization treatment device for zero discharge of high-salt wastewater according to claim 3, wherein the locking piece (11) comprises a supporting seat (16) fixed in an inner cavity of the rectangular stirring shaft (7), guide sleeves (13) are symmetrically fixed in the supporting seat (16), a bolt (15) is movably installed in the guide sleeve (13) by a first spring (14), and the outer end of the bolt (15) penetrates through the outer wall of the rectangular stirring shaft (7) and is then inserted into the rectangular lantern ring (20).
5. The evaporative crystallization treatment device for zero discharge of high-salinity wastewater according to claim 4, wherein the rectangular stirring shaft (7) is in a split structure, and the butt joint part is sealed by a sealing gasket.
6. The evaporative crystallization treatment device for zero discharge of high-salinity wastewater according to claim 5, wherein locking pieces (11) in two adjacent groups of stirring crushing pieces (8) are crossed in a cross shape.
7. The evaporative crystallization treatment device for zero discharge of high-salt wastewater according to claim 6, wherein the front and rear walls of the two longitudinal rods of the stirring rod (9) are integrally formed with crushing blades (9-1).
8. The evaporative crystallization treatment device for zero discharge of high-salt wastewater according to claim 7, wherein two ends of a cross rod of the stirring rod (9) are arranged in a convex structure, the convex structure is movably inserted into movable guide grooves (9-2) formed in the end parts of two longitudinal rods, two upper sides and two lower sides of the convex structure are connected with the groove walls of the movable guide grooves (9-2) by using a plurality of springs (21) distributed in a matrix, and the front wall and the rear wall of the convex structure are in sliding contact with the groove walls of the movable guide grooves (9-2).
9. The evaporative crystallization treatment device for zero discharge of high-salt wastewater, which is characterized by comprising the following working principle that a distillation kettle body (1) is connected into an evaporative crystallization system and started, waste liquid is heated in the distillation kettle body (1) for evaporative crystallization, a stirring piece power driving component (4) drives a stirring rod (9) to rotate, the waste liquid is stirred in the evaporation process, and the crystallization is crushed after the crystallization is generated; In the initial state, the two stirring crushing pieces (8) in each group are adjacently arranged at the farthest distance and are locked by the locking pieces (11), at the moment, the first electromagnet ring (17) and the second electromagnet ring (18) in each stirring crushing piece (8) are not electrified, the first electromagnet piece (19) in each locking piece (11) is not electrified, the first spring (14) is in a natural state, in the state, the bolt (15) stretches out, the bolt for fixing the stirring crushing pieces (8) is inserted in the rectangular lantern ring (20), and the bolt (15) which does not participate in fixation is inserted in the side wall of the rectangular stirring shaft (7) and is used for blocking the bolt hole, so that waste liquid and crystallization are prevented from entering; After a period of use, the two right side electromagnet rings (18) of the left and right adjacent two rectangular lantern rings (20) in one group are electrified and homopolar with the first left electromagnet ring (17), the first left electromagnet ring (17) and the second right electromagnet ring (18) of the two rectangular lantern rings (20) are electrified and homopolar, the first left electromagnet ring (17) and the second right electromagnet ring (18) of one group are electrified and homopolar, the first left electromagnet ring (17) and the second right electromagnet ring (18) of the other two left and right rectangle lantern rings (20) in one group are not electrified, the first right electromagnet ring (18) and the second left electromagnet ring (17) of the two rectangle lantern rings (20) are electrified and homopolar, at the same time, the first electromagnet ring (17) and the second electromagnet ring (17) of the two stirring and crushing members (8) in one group are opposite to each other, the two electromagnet rings (11) in the one group are not electrified, the two opposite electromagnet rings (11) are not electrified, the opposite electromagnet rings (11) are not electrified, the opposite electromagnet rings (11) are electrified, and the opposite electromagnet rings (11) are blocked by the opposite electromagnet rings (11) and the opposite electromagnet rings (11), eight locking pieces (11) in one group are powered off, at the moment, the bolt (15) is reset and reinserted into the rectangular lantern ring (20) under the action of the elastic force of the first spring (14), and the stirring crushing piece (8) at the moment is fixed in position; When two stirring and crushing pieces (8) in one group are required to be reset to an initial state, the current direction of a first electromagnetic ring (17) and a second electromagnetic ring (18) which are electrified in one stirring and crushing piece (8) with the positions moving in one group is changed at the moment, so that the polarity in the magnetic attraction state is changed, meanwhile, locking pieces (11) in the stirring and crushing piece (8) which are not changed in the other position are kept to be not electrified, other locking pieces (11) are electrified so that a bolt (15) is separated from a rectangular sleeve ring (20), the stirring and crushing pieces (8) corresponding to the locking pieces (11) electrified in the state are displaced under the magnetic attraction effect of homopolar repulsion and opposite attraction, after reset, all the locking pieces (11) are powered off and demagnetized, and the bolt (15) is reinserted into the rectangular sleeve ring (20), so that after the positions are fixed, all the first electromagnetic rings (17) and the second electromagnetic rings (18) are powered off and demagnetized, and the initial state is restored.

Description

Evaporation crystallization treatment device for zero discharge of high-salt wastewater Technical Field The invention relates to the technical field of water pollution treatment, in particular to an evaporation crystallization treatment device for zero discharge of high-salt wastewater. Background In the high-salt wastewater zero-emission evaporative crystallization treatment equipment, the crushing device is used for removing crystal scale attached to the inner surface of the crystallization tank, so that the heat transfer efficiency and continuous operation of the equipment are ensured. The existing crushing device mostly adopts a fixed structure, the scraping force is constant during operation, and the crystal scales in different areas in the crystallization tank have obvious difference in adhesive force due to different forming conditions. The structure cannot adapt to the imbalance of the adhesion force of the crystal scale, so that the crushing device is uneven in stress during operation, local stress overload is easy to cause the damage problems of component deformation, fracture and the like, the component is required to be frequently stopped and replaced, the maintenance cost is increased, and the stable operation of the evaporative crystallization system is influenced at the same time, so that the defect is not effectively solved in the prior art. Disclosure of Invention Aiming at the defects and shortcomings of the prior art, the invention provides the evaporation crystallization treatment device for zero discharge of high-salt wastewater, which can be used for self-adapting to the difference of the adhesion force of crystal scales in a crystallization tank, dynamically adjusting the scraping force of a crushing device, effectively balancing the stress of each part, avoiding local overload, and fundamentally solving the problems of deformation and fracture of the crushing device caused by uneven stress. The invention adopts the following technical scheme that the distillation kettle comprises a distillation kettle body, wherein a steam heating system is arranged at the bottom of the distillation kettle body, a crystallization concentrate discharge port is arranged at one end of the distillation kettle body, a waste liquid inlet pipe and a steam outlet are arranged at the other end of the distillation kettle body, a rectangular stirring shaft is rotatably arranged in the distillation kettle body, two ends of the rectangular stirring shaft are of cylindrical structures, the cylindrical structure of one end is connected with a stirring piece power driving assembly outside the distillation kettle body, a plurality of stirring crushing pieces are arranged on the rectangular stirring shaft, every two stirring crushing pieces in each group are arranged in a staggered mode, and are connected in a magnetic attraction mode and are fixed on the rectangular stirring shaft by locking pieces, and two adjacent stirring crushing pieces are distributed in a cross mode. The stirring crushing piece comprises a stirring rod and crushing blades, wherein the stirring rod is U-shaped, a plurality of crushing blades are arranged on the transverse edge of the stirring rod, two longitudinal rods of the stirring rod are movably sleeved on a rectangular stirring shaft by utilizing a rectangular lantern ring, and an electromagnetic iron ring I and an electromagnetic iron ring II are respectively fixed on the left side surface and the right side surface of the rectangular lantern ring. Further, a set of stirring and crushing members is provided with eight locking members, and the eight locking members are respectively distributed on the rectangular stirring shaft in two, four and two adjacent ways. Further, the locking piece comprises a supporting seat fixed in the cavity of the rectangular stirring shaft, guide sleeves are symmetrically fixed in the supporting seat, a bolt is movably installed in the guide sleeve by a spring, and the outer end of the bolt penetrates through the outer wall of the rectangular stirring shaft and then is inserted into the rectangular lantern ring. Further, the rectangular stirring shaft is in a split type structure, and the butt joint part is sealed by a sealing gasket. Further, the locking pieces in two adjacent groups of stirring crushing pieces are distributed in a cross shape. Further, the front and rear walls of the two longitudinal rods of the stirring rod are integrally formed with crushing blades. Further, two ends of a cross rod of the stirring rod are arranged in a convex structure, the convex structure is movably inserted into movable guide grooves formed in the end parts of the two longitudinal rods, the upper side and the lower side of the stirring rod are connected with the groove walls of the movable guide grooves by a plurality of second springs distributed in a matrix, and the front wall and the rear wall of the convex structure are in sliding contact with the groove walls of th