CN113816574A

CN113816574A - Sludge treatment equipment and sludge treatment method

Info

Publication number: CN113816574A
Application number: CN202111228016.4A
Authority: CN
Inventors: 周根发; 诸诗根
Original assignee: Zhangjiagang Lvqin Environmental Protection Technology Service Co ltd
Current assignee: Zhangjiagang Lvqin Environmental Protection Technology Service Co ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2021-12-21

Abstract

The application relates to the field of sludge treatment, in particular to sludge treatment equipment and a sludge treatment method, wherein the sludge treatment equipment comprises a purification box, electrode plates are arranged at the top and the bottom of the purification box, a push plate is arranged at one end of the purification box in the length direction, a driving assembly for driving the push plate to move is further arranged on the purification box, a discharging pipe is arranged at one end, away from the push plate, of the purification box, and a connecting pipe close to one end of the push plate is connected to the side wall of the purification box; and the purifying box is also provided with a drainage mechanism. In this application put into the purifying box with mud, the plate electrode of assembly all upwards removed the metal cation that contains in making mud on the purifying box, and the drainage mechanism who sets up on the purifying box discharges the moisture of mud top to can discharge most metal ion in the mud, and then make the utilization of mud resourceization safer, effectively improved the treatment effect of mud.

Description

Sludge treatment equipment and sludge treatment method

Technical Field

The application relates to the field of sludge treatment, in particular to sludge treatment equipment and a sludge treatment method.

Background

Sludge is a product after sewage treatment, and is an extremely complex heterogeneous body consisting of organic debris, bacterial cells, inorganic particles, colloids and the like. With the improvement of social production level, the yield of the sludge is increased day by day, and the sources of the sludge are also widened. Common sludge sources include domestic sewage plants, water plants, industrial wastewater plants, and the like. The sludge treatment is a treatment process for reducing and stabilizing the sludge, and common sludge treatment methods comprise incineration, landfill and resource utilization, wherein the incineration can cause serious air pollution, and the landfill can occupy a large amount of land, so the sludge treatment is a better treatment mode for resource utilization of the sludge, and the most common mode for resource utilization of the sludge is planting plants on the treated sludge. However, a large amount of heavy metal ions exist in sludge produced in part of industry, and the heavy metal ions in the sludge are absorbed by plants and enter the bodies of animals and human bodies through the plants, so that the ecological environment is damaged.

Disclosure of Invention

In order to improve the treatment effect of sludge, the application provides sludge treatment equipment and a sludge treatment method.

The application provides a sludge treatment equipment and a sludge treatment method, which adopt the following technical scheme:

the sludge treatment equipment comprises a purification box, wherein electrode plates are arranged at the top and the bottom of the purification box, a push plate is arranged at one end of the purification box in the length direction, a driving assembly for driving the push plate to move is further arranged on the purification box, a discharging pipe is arranged at one end of the purification box, which is far away from the push plate, and a connecting pipe close to one end of the push plate is connected to the side wall of the purification box;

and the purifying box is also provided with a drainage mechanism.

Through adopting above-mentioned technical scheme, mud carries out the purifying box through the connecting pipe in, and the metal cation in the drive mud removes behind the electrode plate circular telegram for the cation in the mud all removes the liquid above the mud, and later drainage mechanism discharges this part contains the liquid of a large amount of metal cations, thereby can reduce the heavy metal ion content in the mud, makes mud can be safer when by resource utilization. The treated sludge leaves the purifying box from the discharge pipe under the pushing of the push plate, and the driving component provides power for the push plate.

Optionally, the drainage mechanism includes a drainage plate disposed in the purification box and close to the top wall of the purification box, a drainage cavity is formed in the drainage plate, a plurality of drainage holes communicated with the drainage cavity are formed in the bottom surface of the drainage plate, a water outlet pipe communicated with the drainage cavity is formed in the side wall of the drainage plate, and a power assembly for driving the drainage plate to move is further disposed on the purification box.

Through adopting above-mentioned technical scheme, power component drive drain bar reciprocates, and when the drain bar moved down, the water that contains a large amount of metal ions can enter into the drainage chamber through the wash port, and the water in the drainage chamber passes through the outlet pipe and leaves the drainage chamber to realize the effect of ion and mud separation.

Optionally, one end of the water outlet pipe, which is far away from the water discharging plate, is bent downwards, a yielding groove is formed in the inner wall of the purifying box, a water discharging pipe is arranged in the yielding groove, and one end, which is far away from the water discharging plate, of the water outlet pipe is inserted into one end, which is close to the water outlet pipe, of the water discharging pipe.

Through adopting above-mentioned technical scheme, outside the water in the outlet pipe passes through the drain pipe and discharges to the purifying box, outlet pipe and drain pipe take place relative slip when the drain bar removes to make the hydroenergy in the drainage chamber smoothly flow outside the purifying box.

Optionally, the power assembly comprises a lifting plate arranged on the side wall of the drainage plate, a lifting groove for the lifting plate to lift is formed in the side wall of the purification box, a first cylinder is further arranged on the side wall of the purification box, and an output shaft of the first cylinder is connected to the lifting plate.

Through adopting above-mentioned technical scheme, first cylinder drive lifter plate goes up and down from the lift inslot, and the lifter plate drives the drain bar and removes to the in-process that the drain bar removed downwards, the water that contains metal ion in the mud enters into the drainage intracavity through the wash port.

Optionally, the driving assembly comprises a screw rod arranged at one end of the purifying box in a penetrating mode in the length direction, one end of the screw rod is connected to the push plate, and an output shaft connected to a motor of the screw rod is further arranged on the outer wall of the purifying box.

Through adopting above-mentioned technical scheme, motor drive screw rod rotates, and the screw rod drives the push pedal and removes along the length direction of purifying box when rotating to the push pedal can be released the mud of getting rid of metal ion in the purifying box from the discharging pipe.

Optionally, the purifying box is kept away from to the connecting pipe one to serve and connect the mixing drum, the former feed pipe has been seted up on the lateral wall of mixing drum, wear to be equipped with the axis of rotation on the mixing drum, be equipped with the stirring leaf in the axis of rotation, still be equipped with on the mixing drum and connect in the motor of axis of rotation, still be connected with the inlet tube on the lateral wall of mixing drum, the water piping connection has the water tank.

Through adopting above-mentioned technical scheme, in the mud raw materials entered into the mixing drum through the former feed pipe, the water in the water tank entered into the mixing drum through the inlet tube and mixes with mud, and motor drive axis of rotation and stirring leaf rotate, and the stirring leaf mixes water and mud to improve the moisture content of mud, be convenient for separate part of water from the purifying box and mud.

Optionally, the discharge pipe is connected to a filter-pressing box, a pressure plate is arranged in the filter-pressing box, a second air cylinder for driving the pressure plate to move is arranged on the filter-pressing box, and a water outlet assembly is further arranged on the filter-pressing box.

Through adopting above-mentioned technical scheme, mud enters into the filter-pressing box after, and the second cylinder drives the clamp plate and presses mud, and the moisture in the mud passes through the play water subassembly and discharges outside the filter-pressing box to can get rid of most moisture in the mud, thereby the mud of being convenient for carries out the microbial fermentation, and the aerobic bacteria of being convenient for survive in mud.

Optionally, the water outlet assembly comprises a bottom plate arranged at the bottom of the filter pressing box, the bottom plate is detachably connected with the filter pressing box, a mud outlet opening is formed in the bottom of the filter pressing box, a plurality of filter pressing pipes penetrate through the bottom plate, a plurality of filtering holes are formed in the side wall of each filter pressing pipe, and a yielding hole for the filter pressing pipes to penetrate through is formed in the pressing plate.

Through adopting above-mentioned technical scheme, when the bottom plate assembled on the filter-pressing case, mud was pressed to the clamp plate, and outside moisture in the mud flowed the filter-pressing case through the filter-pressing pipe, filter-pressing pipe evenly distributed was in the filter-pressing case to can improve the discharge efficiency of mud normal water. After mud is pressed, pull down the bottom plate from the filter-pressing case to be convenient for take out mud through going out the mud opening.

Optionally, a connecting plate is arranged on the side wall of the bottom plate, an insertion rod penetrates through the connecting plate, and an insertion slot for inserting the insertion rod is formed in the side wall of the filter press box.

Through adopting above-mentioned technical scheme, the inserted bar inserts in the slot, and the inserted bar plays fixed effect to the connecting plate, connecting plate and bottom plate fixed connection to realize being connected of bottom plate and filter-pressing case.

A sludge treatment method comprises the following treatment processes:

step1, filtering the sludge, and screening large-particle impurities in the sludge;

step2, putting the sludge into sludge treatment equipment, and removing heavy metal ions in the sludge;

step3, carrying out microbial fermentation on the sludge from which the metal cations are removed, and decomposing organic matters in the sludge.

Through adopting above-mentioned technical scheme, mud gets rid of the large granule impurity in the mud through filtering, gets rid of behind the metal ion fermentation again and recycle for resource utilization's mud is healthier, has effectively improved the treatment effect of mud.

In summary, the present application includes at least one of the following beneficial technical effects:

1. according to the method, the sludge is placed into the purifying box, the electrode plates assembled on the purifying box enable metal cations contained in the sludge to move upwards, and the water above the sludge is discharged by the water discharging mechanism arranged on the purifying box, so that most metal ions in the sludge can be discharged, the resource utilization of the sludge is safer, and the sludge treatment effect is effectively improved;

2. this application has connected the mixing drum on the purifying box, and the mixing drum can increase the water content of mud for metal ion in the mud is easily removed more, makes mud metal ion change simultaneously and separates with mud in the purifying box.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a sludge treatment apparatus and a sludge treatment method according to an embodiment of the present application.

FIG. 2 is a cross-sectional view of a mixing drum of an embodiment of the present application.

Fig. 3 is a sectional view of a purification tank according to an embodiment of the present application.

Fig. 4 is a sectional view of a filter press box according to an embodiment of the present application.

Description of reference numerals: 1. a mixing drum; 2. a rotating shaft; 3. an electric motor; 4. stirring blades; 5. a water tank; 6. a water inlet pipe; 7. a connecting pipe; 8. a raw material pipe; 9. a purification box; 10. a discharge pipe; 11. pushing the plate; 12. a drive assembly; 121. a motor; 122. a screw; 13. an electrode plate; 14. a drainage mechanism; 141. a drain plate; 1411. a drain hole; 142. a power assembly; 1421. a lifting plate; 1422. a lifting groove; 1423. a first cylinder; 143. a water outlet pipe; 144. a yielding groove; 145. a drain pipe; 15. a filter-pressing box; 17. a base plate; 18. a connecting plate; 19. inserting a rod; 21. pressing a filter tube; 22. filtering holes; 23. pressing a plate; 25. a second cylinder.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses sludge treatment equipment and a sludge treatment method. Referring to fig. 1 and 2, the sludge treatment equipment and the sludge treatment method comprise a mixing drum 1 arranged along the horizontal direction, a rotating shaft 2 penetrates through the mixing drum 1 along the axial direction of the mixing drum 1, a motor 3 for driving the rotating shaft 2 to rotate is further arranged on the mixing drum 1, and a stirring blade 4 is arranged on the rotating shaft 2. One side of the mixing drum 1 is provided with a water tank 5, the water tank 5 is connected with a water inlet pipe 6, and one end of the water inlet pipe 6, which is far away from the water tank 5, is connected to the side wall of the mixing drum 1 and is communicated with the mixing drum 1. Be equipped with connecting pipe 7 on the mixing drum 1, be equipped with the connecting valve on the connecting pipe 7, still be equipped with former feed pipe 8 on the mixing drum 1, mud enters into mixing drum 1 from former feed pipe 8 in, the water in the water tank 5 enters into mixing drum 1 through inlet tube 6 simultaneously and mixes with mud, and motor 121 drive axis of rotation 2 rotates with stirring leaf 4, and stirring leaf 4 makes water and mud carry out the intensive mixing. When the connecting valve is in the open state, the sludge is connected with the mixing drum 1 through the connecting pipe 7, and the water content of the sludge can be effectively improved by the mixing drum 1.

Referring to fig. 1 and 3, a purifying box 9 is connected to one end of the connecting pipe 7 away from the mixing drum 1, the connecting pipe 7 is located at one end of the purifying box 9 in the length direction, and sludge in the mixing drum 1 enters the purifying box 9 through the connecting pipe 7. One of connecting pipe 7 is kept away from to purifying box 9 serves and is equipped with discharging pipe 10, still is equipped with in the purifying box 9 and pushes away the push pedal 11 outside purifying box 9 with mud from discharging pipe 10, and push pedal 11 is close to the one end in the 9 length direction of connecting pipe 7 place purifying box, still is equipped with the drive assembly 12 that drive push pedal 11 removed along the length direction of purifying box 9 on the purifying box 9. Drive assembly 12 includes wears to establish screw rod 122 on the purifying box 9 along the length direction of purifying box 9, and screw rod 122 passes push pedal 11 and with push pedal 11 threaded connection, is equipped with output shaft on the one end outer wall of purifying box 9 and connects in screw rod 122's motor 121, and motor 121 drive screw rod 122 rotates, and screw rod 122 drives push pedal 11 and pushes mud in discharging pipe 10. Electrode plates 13 are arranged at the top and the bottom of the purification box 9, the electrode plate 13 positioned above is connected to the negative pole of the power supply, and the electrode plate 13 positioned above is connected to the positive pole of the power supply. After the electrode plate 13 is electrified, metal ions in the sludge move upwards under the action of the electric field, and simultaneously due to the precipitation effect of the sludge, the upper layer of the sludge is layered to form a water outlet layer, and a large amount of metal ions in the sludge enter the water layer. The clean tank 9 is also provided with a drainage mechanism 14 for discharging the water layer to the outside of the clean tank 9.

The drain mechanism 14 includes a drain plate 141 provided inside the purification tank 9, and the drain plate 141 is provided near the tank top of the purification tank 9. A drainage cavity is formed in the drainage plate 141, a plurality of drainage holes 1411 are further formed in the bottom surface of the drainage plate 141, and the drainage holes 1411 are communicated with the drainage cavity. The drain mechanism 14 further includes a power assembly 142 that drives movement of the drain plate 141. Power component 142 is including locating a plurality of lifter plates 1421 on the drain bar 141 lateral wall, set up on the inner wall of purifying box 9 and supply lifter plate 1421 to go along the lift groove 1422 that purifying box 9 direction of height removed, still be equipped with first cylinder 1423 on the purifying box 9, first cylinder 1423 is connected in lifter plate 1421, first cylinder 1423 can drive lifter plate 1421 and drain bar 141 along the direction of height lift of purifying box 9, thereby when drain bar 141 moves downwards, water in the water layer in the purifying box 9 can enter into the drainage chamber through wash port 1411. The side wall of the drainage plate 141 is provided with a water outlet pipe 143 communicated with the drainage cavity, one end of the water outlet pipe 143 far away from the drainage pipe 145 is inclined downwards, and the inner wall of the purification box 9 is provided with a yielding groove 144 for placing the water outlet pipe 143. A drain pipe 145 is further arranged on the bottom of the purification box 9 in a penetrating manner, and one end of the drain pipe 145, which is positioned on the purification box 9, is positioned in the avoiding groove 144. The end of the water outlet pipe 143 away from the drain board 141 is inserted into the drain pipe 145 and can slide relative to the drain pipe 145, and when the first cylinder 1423 drives the drain board 141 to move, the water outlet pipe 143 and the drain pipe 145 can slide relative to each other.

Referring to fig. 4, one of purifying box 9 is kept away from to discharging pipe 10 is served and is connected with filter-pressing box 15, the mud opening has been seted up to filter-pressing box 15's bottom, filter-pressing box 15's bottom still is equipped with and is used for the shutoff to go out mud open-ended bottom plate 17, be equipped with connecting plate 18 on bottom plate 17's the lateral wall, wear to be equipped with inserted bar 19 on the connecting plate 18, offer on filter-pressing box 15's the lateral wall and supply inserted bar 19 male slot, bottom plate 17 inserts through inserted bar 19 and realizes being connected with filter-pressing box 15's the dismantlement in the slot. A plurality of filter pressing pipes 21 penetrate through the bottom plate 17, and a plurality of filter holes 22 are formed in the side wall of the filter pressing pipe 21 in the filter pressing box 15. Still be equipped with clamp plate 23 in the filter-pressing box 15, set up the hole of stepping down that supplies filter-pressing pipe 21 to pass on the clamp plate 23, still be equipped with the second cylinder 25 that is located the filter-pressing box 15 outside on the roof of filter-pressing box 15, the output shaft of second cylinder 25 passes filter-pressing box 15 and connects in clamp plate 23, second cylinder 25 drives clamp plate 23 and removes, clamp plate 23 presses the mud in filter-pressing box 15, moisture in mud receiving the back mud of pressing enters into filter-pressing pipe 21 through filtration pore 22 in, and discharge outside filter-pressing box 15 through filter-pressing pipe 21. After the sludge is pressed, the bottom plate 17 is moved away from the filter press box 15, and the sludge in the filter press box 15 can be taken out.

The implementation principle of the sludge treatment equipment and the sludge treatment method in the embodiment of the application is as follows: the sludge enters the mixing cylinder 1 to be mixed with water, and the mixed sludge enters the purifying box 9 through the connecting pipe 7. The sludge can be layered under the action of gravity in the purifying box 9, the upper layer can form a water layer, and metal ions in the sludge can enter the water layer under the action of the electrode plate 13. The first cylinder 1423 drives the drain plate 141 to move downward, the water in the water layer enters the drain cavity through the drain hole 1411, and then enters the drain pipe 145 through the drain cavity, and further is discharged out of the purifying box 9, so that the effect of removing metal ions in the sludge is achieved. The sludge leaves the purifying box 9 and enters the filter-pressing box 15, the filter-pressing box 15 presses the sludge, and the moisture contained in the sludge is discharged out of the filter-pressing box 15 through the filter-pressing pipe 21, so that the sludge is quickly dehydrated.

Compared with the prior art, the embodiment of the application has the advantages that the sludge is placed into the purifying box 9, the electrode plates 13 assembled on the purifying box 9 enable metal cations contained in the sludge to move upwards, the water drainage mechanism 14 arranged on the purifying box 9 discharges water above the sludge, so that most metal ions in the sludge can be discharged, the resource utilization of the sludge is safer, and the sludge treatment effect is effectively improved.

The embodiment of the application also discloses a sludge treatment method of the sludge treatment device, which comprises the sludge treatment equipment, Step1, filtering the sludge, and screening large-particle impurities in the sludge;

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A sludge treatment equipment is characterized in that: the device comprises a purifying box (9), wherein electrode plates (13) are arranged at the top and the bottom of the purifying box (9), a push plate (11) is arranged at one end of the purifying box (9) in the length direction, a driving assembly (12) for driving the push plate (11) to move is further arranged on the purifying box (9), a discharging pipe (10) is arranged at one end, far away from the push plate (11), of the purifying box (9), and a connecting pipe (7) close to one end of the push plate (11) is connected onto the side wall of the purifying box (9);

and a drainage mechanism (14) is also arranged on the purification box (9).

2. The sludge treatment apparatus according to claim 1, wherein: drainage mechanism (14) just are close to drain bar (141) of purifying box (9) roof including locating in purifying box (9), set up the drainage chamber in drain bar (141), set up a plurality of wash ports (1411) that communicate in the drainage chamber on the bottom surface of drain bar (141), be equipped with on the lateral wall of drain bar (141) and communicate in outlet pipe (143) in the drainage chamber, still be equipped with power component (142) that drive drain bar (141) removed on purifying box (9).

3. The sludge treatment apparatus according to claim 2, wherein: the one end that drain bar (141) were kept away from in outlet pipe (143) is buckled downwards, tank (144) of stepping down has been seted up on the inner wall of purifying box (9), be equipped with drain pipe (145) in tank (144) of stepping down, the one end that drain bar (141) were kept away from in outlet pipe (143) is inserted and is established drain pipe (145) one end that is close to outlet pipe (143).

4. The sludge treatment apparatus according to claim 2, wherein: the power assembly (142) is including setting up lifter plate (1421) on drain bar (141) lateral wall, set up on the lateral wall of purifying box (9) and supply lifter plate (1421) to carry out lift groove (1422), still be equipped with first cylinder (1423) on the lateral wall of purifying box (9), the output shaft of first cylinder (1423) is in lifter plate (1421).

5. The sludge treatment apparatus according to claim 1, wherein: the driving assembly (12) comprises a screw rod (122) arranged at one end of the length direction of the purifying box (9) in a penetrating mode, one end of the screw rod (122) is connected to the push plate (11), and a motor (121) with an output shaft connected to the screw rod (122) is further arranged on the outer wall of the purifying box (9).

6. The sludge treatment apparatus according to claim 1, wherein: one of purifying box (9) is kept away from in connecting pipe (7) serves and connects mixing drum (1), former feed pipe (8) have been seted up on the lateral wall of mixing drum (1), axis of rotation (2) wear to be equipped with on mixing drum (1), be equipped with stirring leaf (4) on axis of rotation (2), still be equipped with motor (3) of connecting in axis of rotation (2) on mixing drum (1), still be connected with inlet tube (6) on the lateral wall of mixing drum (1), inlet tube (6) are connected with water tank (5).

7. The sludge treatment apparatus according to claim 1, wherein: the discharging pipe (10) is connected with a filter press box (15), a pressing plate (23) is arranged in the filter press box (15), a second air cylinder (25) for driving the pressing plate (23) to move is arranged on the filter press box (15), and a water outlet assembly is further arranged on the filter press box (15).

8. The sludge treatment apparatus according to claim 7, wherein: go out water component including bottom plate (17) of locating filter-pressing case (15) bottom, bottom plate (17) can be dismantled with filter-pressing case (15) and be connected, the mud opening has been seted up to the bottom of filter-pressing case (15), wear to be equipped with a plurality of filter-pressing pipes (21) on bottom plate (17), a plurality of filtration pores (22) have been seted up on the inside lateral wall of filter-pressing case (15) that is located of filter-pressing pipe (21), set up the hole of stepping down that supplies filter-pressing pipe (21) to pass on clamp plate (23).

9. The sludge treatment apparatus according to claim 8, wherein: the filter press is characterized in that a connecting plate (18) is arranged on the side wall of the bottom plate (17), an inserting rod (19) penetrates through the connecting plate (18), and an inserting groove for inserting the inserting rod (19) is formed in the side wall of the filter press box (15).

10. A sludge treatment method, any one of the sludge treatment apparatuses according to claims 1 to 9, characterized in that: the treatment process is as follows: