A kind of push-down is mud scraper under water
Technical field
The present invention relates to the mud-scraping apparatus under water in the swash plate pipe horizontal sedimentation tank in the water treatment technology, mainly is the mud of removing the pond bottom sediments.
Background technology
Mud scraper used in the swash plate pipe sedimentation basin generally all adopts rope traction formula mud scraper under water both at home and abroad.When this mud scraper is scraped the mud operation, for driving the lengthwise movement at the bottom of the pond of unique scraper plate, rope traction mechanism need be on top, pond synchronously along the lengthwise movement in pond.Sometimes, what pond middle part may be provided with some suspensions strains water device, aerator etc., makes when scraping mud, moves very inconvenient.In addition, when whole device moves, have " stirring water " phenomenon in water, one comes the resistance of water can increase the energy consumption of device,, during the big-movement agitate water, the mud that has precipitated is seethed, reduce the effect of handling.In addition, owing to the old wear and aging of structure etc. reason, steel wire rope ruptures especially easily, water makes water factory stop to produce when maintenance the time need stop into, has influenced the normal operation of water factory.
Summary of the invention
The present invention is directed to above problem, provide a kind of, thereby do not taken space in the pond in water-bed stepping operation, and to the little push-down of the stirring of water mud scraper under water.
Technical scheme of the present invention is: be arranged in the sedimentation basin, one end of described sedimentation basin is provided with sludge sump, described mud scraper comprises scraper plate, drive unit and transmission mechanism, described drive unit be fixed on sedimentation basin away from the other end pond of sludge sump along last, on the pool wall of this end, be provided with described transmission mechanism; Described transmission mechanism comprises bearing, gear frame, push rod, ram seat and scrapes sheet frame; Described scraper plate has a cammed surface towards described pool wall, described bearing is fixedly connected on described this end pool wall middle and lower part midline position, gear frame is triangular in shape, one of them bight and the described bearing of gear frame are hinged, angle near pool wall in other two angles of described gear frame links to each other with described drive unit, near the hinged described push rod in the angle at the bottom of the pond; The described sheet frame of scraping vertically is provided with respect to sedimentation basin, and described scraper plate crosswise fixed is connected scrapes on the sheet frame; Described ram seat is fixedly connected on scrapes on the sheet frame, and hinged with the other end of described push rod.
Described scraper plate is made of scraper plate and lath, and the cross section of described lath has the cammed surface of one day to described pool wall.
Described bottom, pond near sludge sump is provided with and is used to connect the described sliding support of scraping sheet frame of support.
Described drive unit comprises driving cylinder, piston rod and connecting rod, and the upper end of described piston rod and described connecting rod is hinged, and the lower end of described connecting rod connects on the described gear frame one jiao near pool wall.
The triangle of described gear frame is a right angled triangle, and the hinged angle of described and bearing is the right angle, forms the fulcrum of deciding of gear frame; Described angle near pool wall is greater than another acute angle, and this dihedral becomes the last fulcrum of gear frame; The hinged acute angle of another and push rod forms the lower fulcrum of gear frame.
The present invention is being provided with a framework at the bottom of being slightly less than the pond at the bottom of the pond, with some scraper plates, lath crosswise fixed on framework, utilize the drive unit of pool wall to promote gear frame, the horizontal linear that the straight reciprocating motion of the vertical direction of drive unit is converted to frame assembly moves back and forth.The cross section be the lath of wedge shape and scraper plate when sludge sump moves, the mud that scraper plate promotes between adjacent slat and scraper plate moves to the sludge sump direction; During answer, the speed of service the when speed of service of drive unit is greater than feeding (promotion), the lath of wedge shape makes mud " leap " between adjacent slat and scraper plate between next lath and the scraper plate.Like this, do action is realized step by step, stepping carries, and the mud at the bottom of the pond is transported in the sludge sump.Exquisite composition of the present invention, the treatment effeciency height does not hinder setting, the operation of other device in the pond; All drive disk assemblies have been realized non-maintaining all at Chi Ding substantially; The section of scraper component (containing lath) adopts triangular structure under water, makes scraper plate reach in light weight, the requirement that intensity is high.
Description of drawings
Fig. 1 is a structural representation of the present invention
1 is sedimentation basin among the figure, the 2nd, and driving cylinder, the 3rd, piston rod, the 4th, pool wall, the 5th, connecting rod, the 6th, bearing, the 7th, decide fulcrum, the 8th, last fulcrum, the 9th, gear frame, the 10th, lower fulcrum, the 11st, push rod, the 12nd, ram seat, the 13rd, scraper plate, the 14th, lath, the 15th, scrape sheet frame, the 16th, sliding support, the 17th, sludge sump;
Fig. 2 is a K portion enlarged drawing among Fig. 1
Fig. 3 is the vertical view of Fig. 1
Fig. 4 is a working state schematic representation of the present invention
18 is hinges among the figure.
The specific embodiment
The present invention as Figure 1-3, integral body is arranged in the sedimentation basin 1, one end of described sedimentation basin 1 is provided with sludge sump 17, described mud scraper comprises scraper plate 13, drive unit and transmission mechanism, described drive unit be fixed on sedimentation basin 1 away from the other end pond of sludge sump 17 along last, on the pool wall 4 of this end, be provided with described transmission mechanism; Described transmission mechanism comprises bearing 6, gear frame 9, push rod 11, ram seat 12, scrape sheet frame 15 and cross section is that (scraper plate 13 and lath 14 can be the designs of unification formula for the lath 14 of wedge shape, constitute scraper component) with cammed surface, described bearing 6 is fixedly connected on the position of the center line of described these end pool wall 4 middle and lower part horizontal directions, gear frame 9 is triangular in shape, one of them bight and the described bearing 6 of gear frame 9 are hinged, in described gear frame 9 other two angles, angle near pool wall 4 links to each other with described drive unit, near the hinged described push rod 11 in the angle at the bottom of the pond; The described sheet frame 15 of scraping vertically is provided with respect to sedimentation basin 1, and tiling is located at the bottom of the pond, described scraper plate 13 and lath 14 mutually snugly crosswise fixed be connected and scrape on the sheet frame 15, the lozenges of described lath 14 is towards the direction of described gear frame 9; Described ram seat 12 is fixedly connected on scrapes on the sheet frame 15, and hinged with the other end of described push rod 11.
Described bottom, pond near sludge sump 17 is provided with and is used to connect the described sliding support 16 of scraping sheet frame 15 of support.
Described drive unit comprises driving cylinder 2, piston rod 3 and connecting rod 5, and described piston rod 3 is hinged by hinge 18 with the upper end of described connecting rod 5, and the lower end of described connecting rod 5 connects on the described gear frame 9 one jiao near pool wall 4.
The triangle of described gear frame 9 is a right angled triangle, and described and bearing 6 hinged angles are the right angle, and what form gear frame 8 decides fulcrum 7; Described angle near pool wall 4 is greater than another acute angle, and this dihedral becomes the last fulcrum 8 of gear frame 9; Another and push rod 11 hinged acute angles form the lower fulcrum 10 of gear frame 9.The locus of last fulcrum 8, lower fulcrum 10 can change.
When the present invention works, as shown in Figure 4, the slow downwards operation of piston rod 3, driving gear frame 9 by hinge 18, connecting rod 5 is that rotate in the axle center to decide fulcrum 7, last fulcrum 8, lower fulcrum 10 move under side, lower fulcrum 10 drives push rod 11, ram seat 12 is moved to the direction of sludge-tank 17, and ram seat 12 drives again scrapes sheet frame 15, scraper plate 13, lath 14 motions, realizes the promotion to pool bottom sludge.Reach certain stroke, inverted running, at this moment, driving cylinder 2 quickens, and the mud that adjacent slat 14 and scraper plate are 13 is passed to next scraper plate under wedge effect
13, between the lath, thereby realize step by step, stepping scrapes the mud operation.
The present invention can satisfy following requirement:
1) at first can guarantee to scrape continuously the performance of mud: every interval 750mm establishes a scraper plate and guarantees the performance of scraping mud continuously at the bottom of the pond.
2) equipment has the performance of continuous operation and easy care: the transmission mechanism of this device all makes the plant maintenance maintenance convenient at Chi Ding.
3) high reliability: equipment is in service in the action of scraping mud, orderly action should be correctly, steadily, safety, reliable, little, the long service life of power consumption.
Implement when of the present invention, transmission device mainly by driven unit, scrape the sheet frame assembly, transmission component is formed.Support wherein, gear frame, framework are even to be welded by seamless steel pipe, makes modular construction intensity height in light weight.
Driven unit adopts low-pressure type hydraulic cylinder or cylinder, is furnished with pressure gauge and control valve and is used for regulating the speed of advancing and returning.Be the 20-70 crust and can on pressure gauge, read to oil/cylinder output pressure.By pressure restrictor, maximum pressure can limit.
The lath section adopts triangle (having the lozenges towards gear frame) also to have concave, the most effectively removes variety classes mud and produces best multiviscosisty effect with the different speeds of service.Adopt this structure to make scraper plate have the big effect of intensity in light weight simultaneously.
In addition, for guaranteeing to scrape the operation of sheet frame, be provided with track at the bottom of the pond, track is made by high-density polyethylene, and the scraper plate of mud scraper is done longitudinal sliding motion in the above, and the normal economic life arteries and veins of slide rail can be reached 10 years.