TWI448322B - Filtering Method of Pressurized Sludge for Sludge Filter Press - Google Patents

Description

Sludge filter press filter press sludge discharge method

The invention relates to a sludge filter press, a method for discharging a sludge by a filter press, in particular to a jet discharge method designed for a filter press sludge of a plate and frame type sludge filter press.

As shown in the first figure, the conventional plate and frame type sludge filter press is arranged on the rails on both sides of the frame 9 to overlap and rest on the frame 91, and is matched with the fixed end seat 92 and the movable end seat 93. Positioning. The filter chambers on both sides of the frame frame 91 are each provided with a filter cloth 94 communicating with the sludge port 95, and a drain hole 96 at a corner thereof for connecting the sludge slurry line 97 and the sewage discharge line 98 of the fixed end seat 92.

When all the frame frames 91 are displaced to the right and overlap and pressurize the sludge, the pump continuously feeds and squeezes the sludge to discharge the sewage through the drainage hole 96, and the sludge is filtered by the filter cloth 94. Indoor, to achieve the purpose of extrusion dehydration. Immediately after the sludge filter press pulls the plate frame 91 and the filter cloth 94 one by one with the pulling mechanism and the jig 99, the dehydrated sludge is discharged in the past.

However, in the above-mentioned pressure filtration dehydration process, the sludge is strongly pressed and adhered to the surface of the filter cloth 94 of the plate frame 91. Therefore, when the filter cloth 94 is opened, part of the sludge remains, and cannot be completely discharged. Removal, affecting the efficiency of sludge filter press operation, and the residual sludge will increase with the number of works, so that the sludge filter press must use manpower to remove the sludge on the filter cloth 94 at regular intervals, or Replace the filter cloth 94 in a timely manner.

Therefore, how to solve the above-mentioned problems and disadvantages of the unloading method after the conventional sludge filter press dewatering is the subject of research and development of the relevant industry.

The main object of the present invention is to accelerate the sludge discharge speed by using the jet discharge device to discharge the dewatered sludge in the frame, and at the same time clean the sludge remaining on the surface of the filter cloth to increase the sludge pressure. The efficiency of the filter discharge operation is simple and convenient.

In order to achieve the above object, the sludge filter press of the present invention is provided with an organic seat, the frame is provided with a plurality of plate frames, and the machine base is provided with a pulling device and a jet discharging device on the side of the plurality of plate frames; The two side systems are respectively provided with a rail, the rear end of the two rails is fixed with a fixing plate, and the front end is provided with a movable plate, and the movable plate is provided with a drive for driving the movable plate toward or away from the fixed plate; the two sides of the plurality of plate frames Each of the surface is provided with a filter chamber, the filter chamber is provided with a sludge port connecting the two sides of the plate frame, and a filter cloth is arranged on the surface of the filter chamber, and each plate frame is arranged side by side between the two tracks; the pulling device is A first transmission wheel and a second transmission wheel are respectively disposed on the two end side surfaces of each track, and a transmission belt is disposed on the first transmission wheel and the second transmission wheel, and is connected to the transmission belt to drive the frame frame to be displaced by the track. Fixture; the jet discharge device is connected to one side of the clamp and can be displaced with the clamp, and the jet discharge device has a plurality of nozzles, and the plurality of nozzles are located on the upper side of the clamp; when the sludge filter press is used, Using power The plurality of plate frames are arranged side by side, so that the plate frames are arranged side by side, and the sludge slurry is continuously poured into a plurality of plate frames for dewatering operation, so that the sludge slurry is formed into a state of extrusion dehydration in each frame frame, and The sludge of the sludge slurry is discharged from the sludge filter press, and the sludge is left between the adjacent plate frames, and then the pulling device is used to move the plate frame one by one to carry out the sludge removing operation, and the plate frame is When moving, the plurality of nozzles of the jet discharge device are located above the two side surfaces of the moved plate frame, and the nozzle is for the moving plate The frame sprays high-pressure gas to remove the sludge on the surface of the filter cloth of the plate frame, and accelerates the falling of the sludge.

Referring to the second to eighth figures, it can be clearly seen from the figure that the sludge filter press of the present invention is provided with an organic seat 1, a plurality of plate frames 2, a pulling device 3, and a jet discharge device 5, wherein Two sides of the base 1 are respectively provided with a rail 11 , and a fixed plate 12 is fixed at a rear end between the two rails 11 , and a movable plate 13 is disposed at a front end thereof, and the movable plate 13 is fixed on the other side away from the fixed plate 12 . The base 15 is provided with a driver 14 on the fixed base 15 . The drive 14 has a piston rod 16 . The end of the piston rod 16 is connected to the movable plate 13 , so that the drive 14 can drive the movable plate 13 toward the fixed plate 12 by driving the piston rod 16 . Close to or away from, the base 1 is provided with a sludge slurry line 17 and a sewage line 18.

The two sides of the plate frame 2 are provided with lugs 24, and the two side surfaces of the plate frame 2 are concavely provided with a filter chamber 21, and the filter chamber 21 is provided with a sludge port 23 communicating with the two side surfaces of the plate frame 2, and is filtered. The surface of the chamber 21 is provided with a filter cloth 22, and the periphery of the surface of the plate frame 2 is provided with a drainage hole 25; the plurality of plate frames 2 are arranged side by side between the two rails 11, so that the sludge ports 23 are connected and connected to each other. The mud line 17 is connected to each of the drain holes 25 and communicates with the drain line 18.

The first transmission wheel 31 and the second transmission wheel 32 are respectively disposed on the two end side surfaces of the rails 11 , and the transmission belt 33 is disposed on the first transmission wheel 31 and the second transmission wheel 32 . The driving belt 33 is connected with a clamp 34 for driving the frame 2 to be displaced on the rail 11; the two sides of the clamp 34 are provided with guide wheels 38 that abut against the rail 11, The clamp 34 is provided with a hook 35 and a clip 36 spaced apart from each other in the side of the clamp 34, and a brake lever 37 for controlling the hook 35 to be retracted into the clamp 34 is disposed on one side of the clamp 34.

The air jet unloading device 5 is provided with a fixing bracket 52 having a first frame rod 54. One end of the first frame rod 54 is positioned on one side of the clamp 34, and the first frame rod 54 is away from the clamp 34. a second frame rod 56 extends laterally, a jet tube 51 is disposed in the first frame rod 54 and the second frame rod 56, and a plurality of nozzles 53 are disposed on the jet tube 51 at the second frame rod 56. The air duct tube 51 at the frame rod 54 is connected to the air supply tube 55. Further, the upper side of the second frame rod 56 is provided with a guide rail 4, and the guide rail 4 is disposed in the same direction as the rail 11, and the guide rail 4 is provided with a roller 42 therein. The roller 42 is connected with a boom 41 connected downwardly. The end of the boom 41 is connected to the second frame rod 56, and the elastic member 43 is sleeved on the boom 41.

Referring to the second figure and the seventh figure to the fourteenth figure, it can be seen from the second figure and the fourteenth figure that when the invention is used, the plate frame 2 is firstly arranged side by side, and the piston is driven by the driver 14. The rod 16 is extended, so that the piston rod 16 pushes the movable plate 13 toward the fixed plate 12, and the plurality of plate frames 2 are arranged side by side. At this time, the sludge ports 23 of the plate frames 2 and the drainage holes 25 are respectively connected, and The sludge port 23 and the drain hole 25 of the last plate frame 2 near the fixed plate 12 are respectively connected to the sludge slurry pipe 17 and the sewage discharge pipe 18, thereby completing the side-by-side operation of the plate frame 2; The sludge slurry is fed from the sludge slurry line 17 to the filtration chamber 21 of each plate frame 2 to perform a dewatering operation, and the sludge slurry is formed into a state of extrusion dewatering in the filtration chamber 21, and the sewage of the sludge slurry is passed through The drain hole 25 and the drain pipe 18 are discharged from the sludge filter press, and the remaining sludge 19 is wrapped in the filter chamber 21 by the filter cloth 22 (as shown in the eighth drawing). See 7 to 10, when the sludge filter press completes the dewatering operation of the sludge, the sludge removal operation is continued. At this time, the driver 14 first drives the piston rod 16 to retract to allow the piston rod to be retracted. 16 drives the movable plate 13 to move away from the fixed plate 12, so that a gap is formed between the movable plate 13 and the plate frame 2, and the first transmission wheel 31 and the second transmission wheel 32 of the pulling device 3 are driven to rotate the transmission belt 33. And then, the clamp 34 is directed toward the first plate frame 2 near the movable plate 13 side. When the clamp 34 is close to the lug 24 of the plate frame 2, the lug 24 is retracted into the clamp 34 by the pressing hook 35. After the hook 35 passes over the lug 24, it will protrude upward again, and when the hook 35 extends out of the clamp 34, the lug 24 is limited to be between the hook 35 and the clip 36, and the jet discharge device 5 The plurality of nozzles 53 are located above the two side surfaces of the frame 2, and the first transmission wheel 31 and the second transmission wheel 32 are configured to drive the reverse rotation of the transmission belt 33, so that the clamp 34 drives the frame 2 toward the movable position. When the plate frame 2 moves, when the plate frame 2 starts to move, the sludge 19 covered by the filter cloth 22 will fall, and the air supply pipe 55 will The high pressure gas to the gas ejection pipe 51, so that the high pressure gas discharge nozzles 53 to clean the surface of the cloth sludge 22 19, 19 to accelerate the falling of the sludge, thereby increasing the discharge pressure filtration efficiency. Referring to the tenth to thirteenth drawings, the clamp 34 of the pulling device 3 repeatedly moves the frame 2 to the movable plate 13 in sequence, and cleans the surface of the filter cloth 22 of the plate frame 2 one by one. The sludge 19, after all the sludges 19 of the frame 2 are removed, the driver 14 will push the movable plate 13 again to make the plurality of plate frames 2 side by side to perform the filter press operation again, and the movable plate 13 pushes the plate frame 2 Before being brought back side by side, the brake lever 37 is held in the retracting jig 34 for the control hook 35 to cause the pulling device 3 to move the jig 34 back to the state shown in the second figure.

Moreover, when the fixing bracket 52 of the jet discharge device 5 moves with the clamp 34, the roller 42 of the boom 41 is displaced in the guide rail 4 to improve the stability of the fixing bracket 52 when moving.

Moreover, the high-pressure gas injected into the air nozzle 51 by the air supply tube 55 is controlled by an automatic control method by using a solenoid valve, and the pulling device 3 can also be controlled by an automatic control method, but the automatic control method is a conventional technology. The method commonly used in it, so it will not be elaborated.

In summary, the present invention can solve the shortage and lack of the conventional sludge filter press, and the key technology is that the jet discharge method can quickly and reliably assist the unloading of the sludge, thereby improving the efficiency of the sludge filter discharge operation. And greatly simplifying the components, saving production costs and working hours, more durable, and easy to operate, this special law filed an invention patent application.

The above embodiments are intended to be illustrative of the present invention and are not intended to be limiting, and the various modifications and modifications which may be made by those skilled in the art are still included in the following claims. In the scope.

1‧‧‧ machine base

11‧‧‧ Track

12‧‧‧ Fixed plate

13‧‧‧ activity board

14‧‧‧ Drive

15‧‧‧ fixed seat

16‧‧‧ piston rod

17‧‧‧Sludge slurry pipeline

18‧‧‧Sewage pipeline

19‧‧‧Sludge

2‧‧‧ board frame

21‧‧‧ Filter room

22‧‧‧ filter cloth

23‧‧‧Sludge mouth

24‧‧‧ lugs

25‧‧‧Drainage holes

3‧‧‧ Pulling device

31‧‧‧First transmission wheel

32‧‧‧Second drive wheel

33‧‧‧ drive belt

34‧‧‧Clamp

35‧‧‧ hook

36‧‧‧Check

37‧‧‧ brake lever

38‧‧‧guide wheel

4‧‧‧ rails

41‧‧‧Boom

42‧‧‧Roller

43‧‧‧Flexible components

5‧‧‧Air jet unloading device

51‧‧‧jet tube

52‧‧‧Fixed bracket

53‧‧‧ nozzle

54‧‧‧ first frame

55‧‧‧Air supply pipe

56‧‧‧Second frame

The first figure is a side view of a conventional sludge filter press.

The second drawing is a side view of the sludge filter press of the present invention.

The third figure is the left side view of the second figure.

The fourth figure is a partial enlarged view of the second figure.

The fifth figure is a perspective view of the pulling device and the jet discharging device.

The sixth figure is a perspective view of the pulling device.

The seventh figure is a schematic diagram of the movement of the first plate frame by the pulling mechanism (1).

The eighth figure is a schematic diagram of the movement of the first plate frame by the pulling mechanism (2).

The ninth figure is a schematic diagram of the movement of the first plate frame by the pulling mechanism (3).

The tenth figure is a schematic diagram of the movement of the second plate frame by the pulling mechanism (1).

The eleventh figure is a schematic diagram of the movement of the second plate frame by the pulling mechanism (2).

The twelfth figure is a schematic diagram of the movement of the second plate frame by the pulling mechanism (3).

The thirteenth figure is a schematic view of the action of the pulling mechanism clamping the third plate frame.

The fourteenth figure is a flow chart of the action used in the present invention.

Claims (7)

A sludge filter press crushing sludge discharge method, the sludge filter press is provided with an organic seat, a plurality of plate frames are arranged on the machine base, and the machine base is provided with a pulling device and a pulling device on the side of the plurality of plate frames Jet discharge device; the two sides of the base are respectively provided with rails, the rear end of the two rails is fixed with a fixed plate, and the front end is provided with a movable plate, and the movable plate is arranged to drive the movable plate toward or away from the fixed plate. a filter chamber is disposed on each of the two side surfaces of the plurality of plate frames, the filter chamber is provided with a sludge port connecting the two side surfaces of the plate frame, and a filter cloth is disposed on the surface of the filter chamber, and the plate frames are arranged side by side on the two tracks. The pulling device is respectively provided with a first transmission wheel and a second transmission wheel on the two end side surfaces of each track, and a transmission belt is arranged on the first transmission wheel and the second transmission wheel, and is connected to the transmission belt. The air jet unloading device is connected to one side of the clamp, and is connected to one side of the clamp, and is displaceable with the clamp, and the jet discharge device has a plurality of nozzles, and the plurality of nozzles are located on the upper side of the clamp; when the sludge is pressed When the filter is in use, In the following sequence of steps: (A) the plate frame side by side close to the work: use power to push the multiple plate frame, so that the plate frames are close together; (B) dewatering operation: the sludge slurry is poured into the multiple plate frame, let the sludge Forming a squeeze dewatering state in each plate frame, and discharging the sewage of the sludge slurry into the sludge filter press, and the sludge is left between the adjacent plate frames; (C) removing the sludge operation: utilizing pulling The feeding device moves the plate frame one by one with the clamp, and when the plate frame moves, the plurality of nozzles of the jet discharge device are located above the two side surfaces of the moved plate frame, and the nozzle sprays high pressure gas on the moving plate frame The body removes the sludge on the surface of the filter cloth of the plate frame to accelerate the falling of the sludge. The method according to claim 1, wherein the movable plate is provided with a fixing seat on the other side away from the fixing plate, the driver is connected to the fixing seat, and the driver has a piston. The rod, the end of the rod is connected to the movable plate. The method according to claim 1, wherein the machine seat is provided with a sludge slurry pipeline and a sewage discharge pipeline, and the periphery of the surface of the plate frame is provided with a drainage hole. The drainage hole is connected to the sewage discharge pipe, and the sludge port of the plate frame is connected to the sludge slurry pipeline. The method for unloading sludge of a sludge filter press according to the first aspect of the invention, wherein the two sides of the clamp are provided with guide wheels that are resisted by the rails, and the clamps are arranged side by side with hooks and clips. The two sides of the frame are provided with lugs, and the lugs are limited to be located between the hooks and the hooks, and the clamp is provided with a brake lever that can control the hooks to remain in the clamp. The method according to claim 1, wherein the jet discharge device is provided with a fixed bracket, the fixed bracket has a first frame rod, and the first frame rod is positioned at one end. a second frame rod extending laterally from the other end of the first frame rod away from the clamp, and the first frame rod and the second frame rod are provided with a jet tube, and the nozzle frame is connected to the second frame rod The jet pipe. The sludge filter press filter sludge discharge method according to claim 5, wherein the first frame rod is connected to the jet pipe by a jet supply pipe. The sludge filter press of the sludge filter press according to item 5 of the patent application scope The method, wherein the upper side of the second frame rod is provided with a guide rail, the guide rail and the rail are disposed in the same direction, the roller is provided with a roller, the roller is connected with a boom downwardly, and the bottom end of the boom is connected to the second frame rod, and An elastic element is sleeved on the boom.