CN211863980U

CN211863980U - Rectangular sedimentation tank mud scraping and slag discharging equipment

Info

Publication number: CN211863980U
Application number: CN201922328030.6U
Authority: CN
Inventors: 陈庆秋
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-11-06
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses a rectangle sedimentation tank is scraped mud and is arranged sediment equipment, it including: a track is provided with a first guide wheel frame at one end, a second guide wheel frame at the other end, a walking wheel of a mud scraping vehicle is arranged on the track in a sliding manner, the mud scraping vehicle is pivoted with the rod body with a scraping plate, a driving machine is linked with a chain, the chain is wound on the first guide wheel frame, the second guide wheel frame and two ends fixed on the mud scraping vehicle, a slag discharger is positioned at the water surface height and comprises a slag discharge groove, a slag discharge lodging weir plate, an operating connecting rod and a motor, the slag discharge lodging weir plate is fixed on the slag discharge groove through a flexible connecting sheet, the operating connecting rod is provided with a shaft part at the middle section of the slag discharge groove, one end of the operating connecting rod is connected with the slag discharge lodging weir plate, a counterweight is fixed at the other end, and the motor is connected with the operating connecting rod, so that the functions of discharging mud at the bottom of the pool and discharging scum on the pool surface are achieved.

Description

Rectangular sedimentation tank mud scraping and slag discharging equipment

Technical Field

The utility model relates to a sedimentation tank scrubbing device indicates especially that a rectangle sedimentation tank that can improve scrubbing effect scrapes mud and arrange sediment equipment.

Background

The existing treatment of urban domestic sewage and industrial wastewater generally adopts a sedimentation tank to carry out sludge sedimentation, and then uses a double-chain mud scraper or a mud suction machine to remove sludge at the bottom of the sedimentation tank. The main reasons why the structure of the mud scraper has some functional defects are found in detail as follows: the double-chain mud scraper utilizes a group of driving chains and a group of mud scraping chains (two), utilizes a driving chain wheel and a driven chain wheel to drive the mud scraping chain wheels and the mud scraping plates, slides on the bottom and the surface of the sedimentation tank in a rotary operation manner, and scrapes and collects the sludge at the bottom and the scum at the surface of the sedimentation tank, and the structure of the double-chain mud scraper has the following defects: 1. the civil construction requires high precision; 2. mud scraping and sucking dead angles are large, and the mud cannot be completely scraped; 3. the sludge discharge concentration is low, and the sludge amount is large; 4. the double-chain mud scraper is easy to be out of the chain, and the mud suction hole of the mud suction machine is easy to be blocked; 5. the requirement on the installation precision of equipment is high, and equipment failure is often caused by poor installation; 6. the maintenance cost of the equipment is high, and the tightness of the chain cannot be effectively adjusted due to loosening; 7. if the sludge is deviated from the pile or large foreign matters exist at the bottom of the pool, the sludge scraper cannot be operated. In addition, the utility model does not have the function of removing the floating slag on the water surface of the sedimentation tank, which leads to obvious insufficient practicability.

In view of the above, the inventor has made a detailed design and careful evaluation for the above-mentioned objects according to the manufacturing, development and design experience of related products for many years, and finally has a practical utility model.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem who wants to solve lies in, to the above-mentioned disappearance that prior art exists, provides a rectangle sedimentation tank mud scraping and row's sediment equipment, include:

a track, wherein one end of the track is provided with a first guide wheel frame, the first guide wheel frame is pivoted with a plurality of first guide wheels, the other end of the track is provided with a second guide wheel frame, and the second guide wheel frame is pivoted with a plurality of second guide wheels; the bottom of a mud scraping vehicle is provided with a plurality of travelling wheels, the travelling wheels are arranged on the track in a sliding manner, the mud scraping vehicle is perpendicular to the track and is pivoted with at least one rod body, the rod body extends towards the same direction and is provided with at least one scraping plate, and the tail ends of the scraping plates are all fixed with at least one elastic sheet, so that the elastic sheet inclines towards the front or the rear of the mud scraping vehicle to form a mud scraping angle;

the driving machine is arranged on the same side of the first guide wheel frame, is linked with a chain, is wound on the first guide wheel, the second guide wheel and two ends fixed on the mud scraping vehicle, and drives the mud scraping vehicle to move between the first guide wheel frame and the second guide wheel frame by the driving machine, so that the groove bottom mud scraping effect is formed by the elastic sheet of the scraper blade;

a slag extractor, which is installed on the same side of the second wheel frame and located at the water level, and comprises a slag discharge groove, a slag discharge lodging weir plate, an operation connecting rod and a motor, wherein the slag discharge groove is a rectangular strip with a low side wall and a high side wall separated by an open shape, the slag discharge lodging weir plate is fixed on the low side wall of the slag discharge groove by a flexible connecting sheet, both sides of the slag discharge lodging weir plate are provided with a corrugated plate and are connected to both sides of the slag discharge groove by the corrugated plate, the operation connecting rod is provided with a shaft part at the middle section of the slag discharge groove, the shaft part is arranged at the high side wall end of the slag discharge groove, one end of the operation connecting rod is connected to the slag discharge lodging weir plate, the other end is fixed with a counterweight, the motor is connected to the operation connecting rod, and the motor drives the slag discharge weir plate to form an inclination, so that the floating slag on the water surface flows into the slag discharge groove.

The utility model discloses a first main aim at, this driving machine just reversing all can drive this mud scraping vehicle along the rail running with this chain, again when the mud scraping vehicle walk to this orbital one end, should scrape this reversal frame of mud scraping vehicle meeting contradicts, changes the direction of rotation of this driving machine through the produced reversal signal of this reversal frame, borrows this and just can let the flexure strip slope of this scraper blade strike off the mud sediment at the bottom of the pool, and then reaches the effect of actuating of reciprocating mud scraping.

The utility model discloses a main aim at of second, this motor pulling should operate the connecting rod and offset this counterweight weight, let the operation connecting rod use the axial region to carry out the pendulum as the axle center, just can promote this row sediment lodging weir plate, and make row sediment lodging weir plate slope produce the state that is less than the surface of water, can be with floating in the leading-in row of slag chute of dross of the surface of water to discharge the dross fast through row's slag chute, borrow this automatic completion surface of water sediment operation.

The utility model discloses a third main aim at, should scrape sediment mechanism with the grudging post with the dross scrape the collection board and violently locate the upper end department of this mud scraping vehicle, let this dross scrape the collection board and can float in surface of water department with buoyancy, this cable wire one end is fixed in the dross and scrapes the collection board again, and the other end of this cable wire is linked in this roll-over stand department, the swing that makes this roll-over stand can stimulate the dross and scrape the collection board and sink into the surface of water below or float in the surface of water and carry out the dross and strike off the stroke, and push the dross to this sediment ware orientation of arranging, and then the supplementary slagging-off effect that improves this sediment ware.

Other objects, advantages and novel features of the invention will become apparent from the following detailed description of the invention when considered in conjunction with the drawings.

Drawings

FIG. 1 is a schematic view of the present invention assembled in a sedimentation tank;

fig. 2 is a perspective view of the mud scraping vehicle of the present invention;

FIG. 3 is an action diagram (I) of the mud scraper of the present invention;

FIG. 4 is a schematic diagram (II) of the mud scraper of the present invention;

fig. 5 is an action schematic diagram (three) of the mud scraper of the utility model;

FIG. 6 is a schematic view of the assembly position of the slag extractor of the present invention;

FIG. 7 is a perspective view of the slag extractor of the present invention;

FIG. 8 is a schematic diagram (I) illustrating the operation of the slag extractor of the present invention;

FIG. 9 is a schematic diagram (II) illustrating the operation of the slag extractor of the present invention;

fig. 10 is a perspective view of a mud scraper according to another embodiment of the present invention;

fig. 11 is an operation diagram (one) of a mud scraper according to another embodiment of the present invention;

fig. 12 is an operation diagram (ii) of a mud scraper according to another embodiment of the present invention;

fig. 13 is a perspective view of a mud scraper and a slag scraping mechanism according to another embodiment of the present invention;

FIG. 14 is a schematic view (I) illustrating the operation of a slag scraping mechanism according to another embodiment of the present invention;

fig. 15 is a schematic view (ii) illustrating the operation of the slag scraping mechanism according to another embodiment of the present invention.

Symbolic illustration in the drawings:

10 tracks;

11 a first wheel carrier;

111 a first guide wheel;

12 a second wheel carrier;

121 a second guide wheel;

13 a chain tightening mechanism;

131 to tighten the seat;

132 an actuator arm;

133 a pulley;

14 a chain adjusting mechanism;

141 an adjustment wheel;

142 a trace;

143 a manipulator;

15 reversing the frame;

20, scraping a mud car;

21 travelling wheels;

22 rod bodies;

221 a scraper;

222 an elastic sheet;

23 adjusting the plate;

24 adjusting the bolt;

25, turning over a frame;

26 a linkage mechanism;

27 a slag scraping mechanism;

271 a vertical frame;

272 scum scraping and collecting plate;

273 steel cord;

274 a scum stop sheet;

30 driving machine;

31 a chain;

40, a slag extractor;

41 slag discharge groove;

411 the lower side wall;

412 high side walls;

42 slag discharging and lodging weir plate;

421 a flexible connecting sheet;

422 corrugated plate;

43 operating the connecting rod;

431 a shaft portion;

432 a weight member;

a 44 motor;

tracking the floating weir at the water level of 45;

46 a floating barrel;

47 a fixed mount;

471 the screw is adjusted.

Detailed Description

To further understand and appreciate the objects, features and functions of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings:

as shown in fig. 1, 2 and 3 in conjunction with fig. 6, a rectangular sedimentation tank mud scraping and slag discharging device comprises: a track 10, a mud scraping vehicle 20, a driving machine 30 and a slag discharger 40, wherein a first wheel frame 11 is arranged at one end of the track 10, a plurality of first guide wheels 111 are pivoted on the first wheel frame 11, a second wheel frame 12 is arranged at the other end of the track 10, a plurality of second guide wheels 121 are pivoted on the second wheel frame 12, a plurality of travelling wheels 21 are arranged at the bottom of the mud scraping vehicle 20, the travelling wheels 21 are slidably arranged on the track 10, the mud scraping vehicle 20 is pivoted with at least one rod body 22 perpendicular to the track 10, the rod body 22 extends in the same direction to form at least one scraping plate 221, at least one elastic sheet 222 is fixed at the tail end of the scraping plate 221, the elastic sheet 222 is inclined towards the front or the rear of the mud scraping vehicle 20 to form a mud scraping angle, the elastic sheet 222 (in an inverted Y shape) is fixed at both tail ends of the scraping plate 221 in a double-inclined shape, and the two elastic sheets 222 are respectively inclined towards the front and the rear of the mud scraping vehicle 20 to form a mud scraping angle, in addition, an adjusting plate 23 is disposed at the middle section of the rod 22, and an adjusting bolt 24 is disposed at both ends of the mud scraper 20 corresponding to the adjusting plate 23, so that the adjusting bolt 24 can be used to block the adjusting plate 23 to adjust the tilt angle of the elastic sheet 222;

a driving machine 30 is installed on the same side of the first wheel frame 11, the driving machine 30 is linked with a chain 31, the chain 31 is wound on the first guide wheel 111, the second guide wheel 121 and the two ends fixed on the mud scraping vehicle 20, and the driving machine 30 drives the mud scraping vehicle 20 to move between the first wheel frame 11 and the second wheel frame 12, the elastic sheet 222 of the scraper 221 forms a groove bottom mud scraping effect, the first wheel frame 11 is installed with a chain packing mechanism 13, the chain packing mechanism 13 comprises at least one packing seat 131, at least one actuating arm 132 and at least one pulley 133, the packing seat 131 is fixed on the first wheel frame 11, one end of the actuating arm 132 is pivoted on the packing seat 131, the other end of the actuating arm 132 is installed with the pulley 133, the pulley 133 is pressed against the chain 31, and the weight of the actuating arm 132 and the pulley 133 forms the packing effect of the chain 31, the second wheel frame 12 is connected to a chain adjusting mechanism 14, the chain adjusting mechanism 14 includes an adjusting wheel 141, a linkage rod 142 and an operating machine 143, the adjusting wheel 141 is wound by the chain 31, the linkage rod 142 is connected between the adjusting wheel 141 and the operating machine 143, and the operating machine 143 drives the linkage rod 142 to extend and retract, thereby driving the adjusting wheel 141 to adjust the tightness of the chain 31; and

a slag extractor 40 is installed on the same side of the second wheel frame 12 and located at the water level, the slag extractor 40 includes a slag discharge groove 41, a slag discharge lodging weir plate 42, an operation link 43 and a motor 44, the slag discharge groove 41 is a rectangular strip with a lower wall 411 and a higher wall 412 separated by an open space, the slag discharge lodging weir plate 42 is fixed on the lower wall 411 of the slag discharge groove 41 by a flexible connecting piece 421, both sides of the slag discharge lodging weir plate 42 are provided with a corrugated plate 422 and connected to both sides of the slag discharge groove 41 by the corrugated plate 422, the operation link 43 is provided with a shaft portion 431 at the middle section of the slag discharge groove 41, the shaft portion 431 is pivoted at the higher wall 412 end of the slag discharge groove 41, one end of the operation link 43 is connected to the slag discharge lodging weir plate 42, the other end is fixed with a counterweight 432, the motor 44 is connected to the operation link 43, and the operation link 43 drives the lodging weir plate 42 to form an inclined slope, the scum on the water surface flows into the scum trough 41 through the scum board 42 to form scum, a water level tracking floating weir 45 and a plurality of floating barrels 46 are arranged on the lower side wall 411 of the scum trough 41, the water level tracking floating weir 45 is in a strip shape and is parallel to the lower side wall 411, the water depth of the scum is adjusted through the water level tracking floating weir 45, the floating barrels 46 are used for setting the stroke height, thereby the scum can be discharged in the state that the water level changes, a fixing frame 47 is arranged between the shaft 431 of the operating connecting rod 43 and the upper side wall 412 of the scum trough 41, an adjusting screw 471 is locked at the fixing frame 47, and the weight of the counterweight 432 is supported by the adjusting screw 471.

In the actual situation of scraping the sludge at the bottom of the tank, as shown in fig. 1 to fig. 6, the track 10 is assembled at the bottom of the settling tank, the first wheel frame 11 and the second wheel frame 12 are respectively disposed at two ends of the track 10, the driving machine 30 and the operating machine 143 are both disposed outside the settling tank, the traveling wheel 21 of the sludge scraping vehicle 20 is slidably disposed on the track 10, the chain 31 is wound around the driving machine 30, the first guide wheel 111, the second guide wheel 121, the adjusting wheel 141 of the operating machine 143, and two ends fixed to the sludge scraping vehicle 20, so that the chain 31 can drive the sludge scraping vehicle 20 to travel along the track 10 during the forward and reverse rotation of the driving machine 30, and when the sludge scraping vehicle 20 travels to one end of the track 10, the sludge scraping vehicle 20 will contact the reverse rotating frame 15, the rotating direction of the driving machine 30 is changed by the reverse rotating signal generated by the reverse rotating frame 15, thereby the elastic sheet 222 of the scraper 221 can obliquely scrape the sludge at the bottom of the tank, thereby achieving the effect of reciprocating mud scraping, wherein the two ends of the scraper 221 in a double-inclined shape are fixed with the elastic pieces 222, so that the two elastic pieces 222 are respectively inclined towards the front and the rear of the mud scraping vehicle 20 to form a mud scraping angle, that is, the mud scraping vehicle 20 can move forward or backward to scrape mud, so as to reduce the cost of equipment construction and improve the stability of mud scraping, furthermore, the adjusting plate 23 is disposed at the middle section of the rod 22, the adjusting bolts 24 disposed at the two ends of the adjusting plate 23 can be adjusted, the adjusting bolts 24 are used to block the adjusting plate 23, thereby adjusting the mud scraping angle of the elastic sheet 222, a proper gap can be maintained between the two adjusting bolts 24 and the adjusting plate 23, the scraping plate 221 can automatically generate a slight angular swing under resistance during mud scraping, that is, the scraper 221 swings forward in the moving direction, and the sludge is less likely to flow above the scraper 221.

The situation of the scum on the water surface is actually eliminated, and the situation is continued from figure 6 to figure 9, when the scum discharge operation is required, the operation link 43 is pulled by the motor 44 to offset the weight of the counterweight 432, and the slag discharge lodging weir plate 42 is pushed by swinging the operation link 43 around the shaft 431 to tilt the slag discharge lodging weir plate 42 to a position lower than the water surface, namely, scum floating on the water surface is guided into the scum trough 41 and is rapidly discharged through the scum trough 41, thereby automatically finishing the scum operation on the water surface, and a water level tracking floating weir 45 and a floating barrel 46 are arranged on the lower side wall 411 of the scum trough 41, the water level tracking floating weir 45 is used for adjusting the water depth of gulping flow, and the floating barrel 46 is used for setting the stroke height, so that the scum cleaning operation can be carried out in the high-low state of water level change, the situation of excessive discharge or incapability of discharging can not be caused, and the applicability of the floating weir can be improved.

In another embodiment of the present invention, as shown in fig. 10, 11 and 12, the first wheel frame 11 and the second wheel frame 12 are both fixed with a reverse rotating frame 15, and the number of the rods 22 of the mud scraping vehicle 20 is two or more, each rod 22 is connected with a roll-over stand 25, a linkage relationship is formed between the roll-over stands 25 by a link mechanism 26, so that the roll-over stand 25 of the mud scraping vehicle 20 can turn over the scraping plate 221 to switch between the non-mud scraping state and the mud scraping state when touching the reverse rotating frame 15, and the link mechanism 26 forms the synchronization of the two scraping plates 221, and can also control the reciprocating distance of the mud scraping vehicle 20, the turnable scraping plate 221 is suitable for the situation that only needs one-way mud scraping, thereby providing another mud scraping manner by the same technical cooperation turning design, and as shown in fig. 13, 14 and 15, the mud scraping vehicle 20 is provided with a mud scraping mechanism 27, and the mud scraping mechanism 27 includes a vertical frame 271, A scum scraping board 272 and a steel cable 273, wherein the scum scraping mechanism 27 transversely arranges the scum scraping board 272 at the upper end of the mud scraping vehicle 20 by a vertical frame 271, the scum scraping board 272 can float on the water surface by buoyancy, one end of the steel cable 273 is fixed to the scum scraping board 272, and the other end of the steel cable 273 is connected to the roll-over frame 25, so that the roll-over frame 25 can swing to pull the scum scraping board 272 to sink under the water surface or float on the water surface for a scum scraping stroke, and push the scum to the direction of the slag extractor 40, thereby assisting in improving the slag removing effect of the slag extractor 40 (shown in fig. 6), and scum blocking pieces 274 are extended at both ends of the scum scraping board 272, and the two scum blocking pieces 274 are used for preventing the scum from leaking laterally from both ends of the scum scraping board 272, to sum up, when the mud scraping vehicle 20 performs a bottom sludge scraping operation, the scum scraping function of scraping the top of the pool can be achieved, so as to improve the operation efficiency and the sludge and scum scraping effects.

The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby; all the equivalent changes and modifications made according to the claims of the present invention should be covered by the scope of the present invention.

Claims

1. The utility model provides a rectangle sedimentation tank mud scraping and sediment equipment, its characterized in that, including:

a track, wherein one end of the track is provided with a first guide wheel frame, the first guide wheel frame is pivoted with a plurality of first guide wheels, the other end of the track is provided with a second guide wheel frame, and the second guide wheel frame is pivoted with a plurality of second guide wheels;

the bottom of the mud scraping vehicle is provided with a plurality of travelling wheels, the travelling wheels are arranged on the track in a sliding manner, the mud scraping vehicle is perpendicular to the track and is pivoted with at least one rod body, the rod body extends towards the same direction and is provided with at least one scraping plate, and the tail ends of the scraping plates are all fixed with at least one elastic sheet, so that the elastic sheet inclines towards the front or the rear of the mud scraping vehicle to form a mud scraping angle;

the driving machine is arranged on the same side of the first guide wheel frame, is linked with a chain, is wound on the first guide wheel, the second guide wheel and two ends fixed on the mud scraping vehicle, and drives the mud scraping vehicle to move between the first guide wheel frame and the second guide wheel frame by the driving machine, so that the groove bottom mud scraping effect is formed by the elastic sheet of the scraper blade; and

a slag extractor which is arranged at the same side of the second guide wheel frame and is positioned at the height of the water surface, the slag extractor comprises a slag discharge groove, a slag discharge lodging weir plate, an operation connecting rod and a motor, the deslagging trough is a rectangular strip with a low side wall and a high side wall separated to be open, the deslagging lodging weir plate is fixed on the low side wall of the deslagging trough by a flexible connecting sheet, and both sides of the slag discharging lodging weir plate are provided with a corrugated plate and are connected to both sides of the slag discharging groove by the corrugated plate, the operating connecting rod is provided with a shaft part at the middle section of the slag discharging groove, and the shaft part is pivoted at the high side wall end of the slag discharging groove, one end of the operating connecting rod is connected with the slag discharging lodging weir plate, and the other end is fixed with a counterweight, the motor is connected with the operation connecting rod, and the motor drives the deslagging lodging weir plate to form inclination, so that the scum on the water surface flows into the deslagging groove.

2. The rectangular settling pond sludge scraping and slag discharging device as claimed in claim 1, wherein the rod body is provided with an adjusting plate at the middle section, and the sludge scraping vehicle is provided with an adjusting bolt at both ends corresponding to the adjusting plate, so that the adjusting bolt can block the adjusting plate to adjust the tilt angle of the elastic sheet.

3. The rectangular settling pond mud and slag scraping device as claimed in claim 1, wherein the first wheel frame is provided with a chain tightening mechanism, the chain tightening mechanism comprises at least one tightening seat, at least one actuating arm and at least one pulley, the tightening seat is fixed on the first wheel frame, one end of the actuating arm is pivoted to the tightening seat, the other end of the actuating arm is provided with the pulley, and the pulley is pressed against the chain.

4. The rectangular settling pond sludge scraping and slag discharging device as claimed in claim 1, wherein the two ends of the scraper are both fixed with the elastic pieces, so that the two elastic pieces are respectively inclined towards the front and the rear of the sludge scraping vehicle to form a sludge scraping angle.

5. The rectangular settling pond sludge scraping and discharging device as claimed in claim 1, wherein the second wheel frame is connected to a chain adjusting mechanism, the chain adjusting mechanism comprises an adjusting wheel, a linkage rod and an operating machine, the adjusting wheel is wound by the chain, the linkage rod is connected between the adjusting wheel and the operating machine, and the operating machine drives the linkage rod to extend and retract, thereby driving the adjusting wheel to adjust the tightness of the chain.

6. The rectangular settling pond sludge scraping and slag discharging device as claimed in claim 1, wherein a water level tracking weir and a plurality of floating buckets are assembled at the lower wall of the slag discharging tank, the water level tracking weir is in a strip shape and is parallel to the lower wall, the water receiving depth is adjusted by the water level tracking weir, and the height of the stroke is set by the floating buckets, thereby enabling slag discharging operation in both high and low states of water level change.

7. The rectangular sedimentation tank mud scraping and slag discharging device as claimed in claim 1, wherein a fixing frame is provided between the shaft portion of the operation link and the high side wall of the slag discharging groove, an adjustment screw is locked at the fixing frame, and the weight of the counterweight is supported by the adjustment screw.

8. The rectangular settling pond mud scraping and slag discharging device as claimed in claim 1, wherein a reversing frame is fixed on each of the first and second wheel frames, and the number of the rods of the mud scraping vehicle is two or more, each rod is connected with a turning frame, and the turning frames are linked by a link rod, so that the turning frame of the mud scraping vehicle can be touched to the turning frame to turn over the scraper to switch the states of non-mud scraping and control the reciprocating distance of the mud scraping vehicle.

9. The rectangular settling pond sludge scraping and discharging device as claimed in claim 8, wherein the sludge scraping vehicle is provided with a sludge scraping mechanism, the sludge scraping mechanism comprises a vertical frame, a scum scraping plate and a steel cable, and the scum scraping plate is transversely arranged at the upper end of the sludge scraping vehicle by the vertical frame, so that the scum scraping plate can float on the water surface by buoyancy, one end of the steel cable is fixed on the scum scraping plate, and the other end of the steel cable is connected to the roll-over frame, so that the roll-over frame can swing to pull the scum scraping plate to sink below the water surface or float on the water surface for scum scraping.

10. The rectangular settling pond sludge scraping and slag discharging apparatus of claim 9, wherein a scum baffle extends from each end of the scum scraper, and the scum baffles are used to prevent scum from leaking laterally from each end of the scum scraper.