CN212640269U - Full-automatic solid-liquid separation system suitable for sludge treatment - Google Patents

Abstract

The utility model discloses a full-automatic solid-liquid separation system suitable for sludge treatment, which comprises a material pretreatment system and a sludge distribution and filter pressing device; wherein, material pretreatment systems includes: the sludge stirring bin is used for accommodating and stirring materials to be distributed; one or more conditioning tanks which are communicated with the sludge stirring bin and are provided with automatic conditioner feeding devices; cloth mud filter pressing device includes: one or more than one sludge distributing machine, the inlet of which is communicated with the corresponding conditioning tank; the filter press is arranged beside a cloth outlet of the mud distribution machine and comprises one or more filter press devices, the number of the filter press devices is the same as that of the mud distribution machine, the filter press devices are arranged on the cloth side of the mud distribution machine in a one-to-one correspondence mode, and each filter press device comprises a filter press assembly, a lifting mechanism and a press machine. The filter pressing system has the advantages of high solid-liquid separation mud discharging speed, high dehydration rate, low requirement on filter cloth and small occupied area.

Description

Full-automatic solid-liquid separation system suitable for sludge treatment

Technical Field

The utility model belongs to the technical field of solid-liquid separation, concretely relates to full-automatic solid-liquid separation system suitable for sludge treatment.

Background

The filter press mainly has the function of separating sludge or water quality through mechanical kinetic energy, and has wide application, and common solid-liquid separation equipment in the prior art comprises a screw folding machine, a cloth belt type filter press, a spiral solid-liquid separator and a plate-and-frame filter press. The spiral sludge dewatering machine has the defect that continuous work of the equipment is realized, and the water content of sludge discharged from the sludge is generally about 80%. The cloth belt type filter press has the defects of high water content of sludge, large energy consumption and difficult maintenance. The water content of the solid extruded by the screw extrusion type solid-liquid separator is about 65-70%. The plate-and-frame filter press has the disadvantages of small treatment capacity and troublesome filter cloth replacement.

In summary, the process principles of different filter pressing devices in structural forms are different, but no device capable of fully automatically operating and ensuring the dehydration rate to be below 38% exists at present from the viewpoint of dehydration effect and automation degree. Meanwhile, the conventional filter pressing system has relatively low automation degree, high labor cost, large occupied area, low mud cake discharging speed and high requirement on filter cloth.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a full-automatic solid-liquid separation system suitable for sludge treatment to the solid-liquid separation who realizes the filter pressing system goes out mud fast, dehydration rate is high, requires low, the little effect of area to the filter cloth.

The utility model adopts the following technical scheme:

the full-automatic solid-liquid separation system suitable for sludge treatment comprises a material pretreatment system and a sludge distribution and filter pressing device; wherein the content of the first and second substances,

a material pretreatment system comprising:

the sludge stirring bin is used for accommodating and stirring materials to be distributed;

one or more conditioning tanks which are communicated with the sludge stirring bin and used for receiving the materials to be distributed pumped from the sludge stirring bin, wherein an automatic conditioner feeding device is arranged on the conditioning tanks;

cloth mud filter pressing device includes:

one or more than one sludge distributing machine, the number of which is the same as that of the conditioning tanks, and the inlets of the sludge distributing machines are communicated with the corresponding conditioning tanks and used for receiving the conditioned materials to be distributed;

the utility model provides a pressure filter sets up by cloth export of cloth mud machine, and it includes one set or the filter pressing device more than one set, and filter pressing device's quantity is the same with the quantity of cloth mud machine, and the setting of one-to-one is in the cloth side of cloth mud machine, and every set of filter pressing device includes filter-pressing subassembly, elevating system and press:

a filter pressing component which comprises a plurality of filter pressing plates which are arranged in parallel from top to bottom in sequence, wherein the upper surface of each filter pressing plate is used for distributing materials,

the lifting end of the lifting mechanism is connected to the filter pressing assembly and is used for driving each filter pressing plate to switch between a mutually separated state and a tightly contacted state; when the adjacent filter pressing plates are in a mutually separated state, the mud distributing machine distributes the material on each layer of filter pressing plate;

and the press is vertically arranged at the top of the filter pressing assembly and used for pressing down the filter pressing plate at the top after finishing the mud distribution so as to complete the filter pressing of the distributed materials and form mud cakes.

Further, full-automatic solid-liquid separation system suitable for sludge treatment still includes mud cake collecting system, and it is used for collecting the mud cake that the material filter-pressing formed after accomplishing, and quantity is the same with filter pressing device, and a mud cake collecting system includes:

the belt conveyor is arranged on one side of the output mud cake of the filter pressing device and is used for conveying the mud cake;

and the mud cake collecting hopper is connected with the belt conveyor and is used for receiving mud cakes.

Further, be applicable to sludge treatment's full-automatic solid-liquid separation system still includes a sewage treatment system, and sewage treatment system includes:

the water collecting pit is communicated with the sewage discharge part of each filter pressing device and is used for collecting sewage generated in the filter pressing process;

and the sewage treatment station is communicated with the outlet of the water collecting pit and is used for purifying the sewage.

Further, be applicable to sludge treatment's full-automatic solid-liquid separation system still includes one and breathes in and biological deodorization device, breathes in and biological deodorization device includes:

the absorption tower comprises a waste gas inlet and a waste gas outlet and is used for absorbing waste gas generated in the processes of the conditioning tank, the sludge distributor, the filter press, the sludge cake collecting system and/or the sewage treatment system;

a biological deodorization device, which is communicated with the waste gas outlet of the absorption tower and is used for deodorizing waste gas and discharging the waste gas to the atmosphere after reaching the standard.

Further, cloth mud machine includes:

the mud distributing main pipe is vertically arranged and used for conveying materials to be distributed;

a plurality of cloth mud branch pipe, from top to bottom horizontal array sets up, every cloth mud branch pipe: the outlet ends of the two mud distributing nozzles are provided with mud distributing nozzles for distributing the mud, and the inlet ends of the two mud distributing nozzles are communicated with a mud distributing main pipe;

the movable support mechanism is used for providing a platform for the mud distribution main pipe and the mud distribution branch pipes to reciprocate in the horizontal direction;

the movable supporting mechanism is used for horizontally moving forwards to place a plurality of sludge distributing nozzles on the movable supporting mechanism in gaps for distributing materials when gaps are formed between adjacent filter pressing plates; and the cloth is horizontally retreated to withdraw the gap after the cloth is finished.

Further, the movement support mechanism includes:

the support frame is arranged on the mud distribution main pipe or any one of the mud distribution branch pipes, and a sliding block is arranged on the support frame;

the support is provided with a track matched with the sliding block and used for realizing the horizontal reciprocating movement of the support;

and the end part of a telescopic rod of the mud distributing oil cylinder is connected to the support frame and is used for realizing the movement of the sliding block on the track through the telescopic action of the telescopic rod, so that the horizontal reciprocating movement of the mud distributing branch pipe is realized.

Further, the filter-pressing plate includes:

the water permeable plate is of a flat plate structure provided with a plurality of water permeable holes;

the bottom sealing plate is arranged below the water permeable plate at intervals, a closed water containing space is formed between the bottom sealing plate and the water permeable plate, and a water outlet is formed in the side part of the bottom sealing plate;

the filter cloth is horizontally and annularly arranged on the water permeable plate and the bottom sealing plate, and the upper surface of the filter cloth is used for placing materials to be distributed and also used for performing rotary motion around the water permeable plate and the bottom sealing plate and then outputting the materials to be distributed after filter pressing outwards;

and the rubber sealing strip is arranged at the bottom of the bottom sealing plate.

Further, the elevating mechanism includes:

the hanging plates are connected and arranged between the adjacent filter pressing plates and used for keeping the distance between the filter pressing plates within a certain distance range in a separated state;

the telescopic rod of the jacking oil cylinder is connected to the topmost filter pressing plate, and the bottom of the cylinder body of the jacking oil cylinder is fixedly arranged on the bottom plate; the telescopic rod is used for realizing distance adjustment between the filter pressing plates through telescopic action of the telescopic rod.

Further, the press comprises:

a press upper platform;

the main press oil cylinder is fixedly connected to the upper platform of the press;

the pressing platform of the press is connected to the end part of the telescopic rod of the oil cylinder of the main press;

and the four filter pressing plate guide columns are vertically arranged between the upper platform and the bottom plate of the press and are positioned around the oil cylinder of the main press.

The utility model has the advantages that:

1. the utility model provides a brand-new solid-liquid separation system structure, wherein a roller arranged on each laminated filter plate rotates to drive the filter cloth to rotate and be used for discharging mud, so that each layer can discharge mud simultaneously, and the overall mud discharging efficiency is high;

2. the utility model discloses a press is four post presses, dewaters by force to the material between the filter cloth, because the press tonnage of this kind of type can reach 320t the most, so its dehydration rate can reach about 38% the highest.

3. The filter cloth in the utility model is a closed ring structure which is arranged around each filter pressing plate, and the length of a single filter pressing plate is usually 1-2 meters, so the requirements of the bearing capacity and the softness of the filter cloth are reduced, and the requirement of the water permeability which only needs to be satisfied is met.

4. The utility model discloses a filter cloth of pressure filter vertically overlaps the setting, and cloth mud and filter-pressing can be accomplished at same station, compare in the press of multistation area reduction.

Drawings

FIG. 1 is a schematic structural view of a full-automatic solid-liquid separation system suitable for sludge treatment according to the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a process flow diagram of the full-automatic solid-liquid separation system for sludge treatment of the present invention;

FIG. 5 is a front view of a sludge distributor of the full-automatic solid-liquid separation system for sludge treatment of the present invention;

FIG. 6 is a side view of FIG. 5;

FIG. 7 is a top view of FIG. 5;

FIG. 8 is a schematic structural view of a sludge distributor and a filter press of the full-automatic solid-liquid separation system for sludge treatment according to the present invention in a sludge distribution state;

FIG. 9 is a schematic structural view of a sludge distributor and a filter press of the full-automatic solid-liquid separation system for sludge treatment in a filter-pressing state;

FIG. 10 is a front view of the filter press plate of the fully automatic solid-liquid separation system for sludge treatment according to the present invention;

FIG. 11 is a top view of FIG. 10;

fig. 12 is a longitudinal sectional view of fig. 10.

The device comprises a press machine 1, a sludge stirring bin 2, a conditioning tank 3, a conditioning tank 4, a water collecting pit 5, a mud distributing machine 6, an automatic conditioner feeding device 7, a filter press 8, a sewage treatment station 9, an air suction and biological deodorization device 10, an absorption tower 11, a press upper platform 12, a main press oil cylinder 13, a press table 14, a filter press plate guide post 15, a filter press plate 16, a filter cloth cleaning nozzle 17, a bottom plate 18, a jacking oil cylinder 19, a slide block 20, a mud distributing oil cylinder 21, a support 22, a mud distributing nozzle 23, a hanging plate 24, a mud limiting plate 25, a track 31, a bottom sealing plate 32, a rubber sealing strip 33, a compression spring 4, a water permeable plate 35, a reset plate 36, a mud scraping plate 37, a water outlet 38, a guide sleeve 39, a groove and a water drainage tank 40, wherein the press plate is arranged on the press machine; 41. a mud distributing main pipe 42, a mud distributing branch pipe 43 and a support frame.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The utility model provides a full-automatic solid-liquid separation system suitable for sludge treatment, which comprises a material pretreatment system, a sludge distributor 5 and a filter press 7, as shown in figures 1-3; a mud cake collection system, a sewage treatment system and/or a suction and bio-deodorisation device 9 may also be included.

1. The material pretreatment system comprises a sludge stirring bin 2 and a conditioning tank 3, and can also comprise an automatic conditioner feeding device 6. Wherein, mud stirring storehouse 2 is used for receiving the material of pending, and the source of this material of pending can be transported to mud stirring storehouse 2 department by solid-liquid transport vechicle, also can directly be in the interior factory building of the scene of need handling all kinds of mud, carry to mud stirring storehouse 2 department through the screw conveyer. The material to be treated is usually in the form of a solid-liquid mixture, and can be used for carrying out solid-liquid separation on sludge of a sewage treatment plant, sludge of a grain processing plant, sludge of a brewery, sludge of a dairy plant and separated kitchen garbage.

The materials stirred and processed by the sludge stirring bin 2 are conveyed to the conditioning tank 3 through a sludge pump, and the conditioning tank 3 can be set to be one, two or more according to the capacity requirement. Each conditioning tank 3 also comprises an automatic conditioner feeding device 6, and a flocculating agent is pumped into the conditioning tank 3 through the automatic conditioner feeding device 6.

The solid-liquid mixture is poured into the sludge stirring bin 2, and two stirring machines are arranged in the sludge stirring bin 2 and are used for stirring the solid-liquid mixture, so that the solid-liquid mixture is fully stirred and cannot be coagulated, precipitated or agglomerated. Then pumping the stirred viscous solid-liquid mixture into a conditioning tank 3 by a sludge pump on a sludge stirring bin 2, wherein the conditioning tank 3 is also provided with a stirrer; meanwhile, a flocculating agent is pumped into the conditioning tank 3 by a flocculating agent metering pump on the automatic conditioning agent feeding device 6. The solid-liquid mixture and the flocculating agent are mixed according to the conventional proportion, and the dosage proportion is controlled by a metering pump according to a program. Conditioning for about 30 minutes.

2. As shown in fig. 5-7, the number of the sludge distributing machines 5 is the same as that of the conditioning tanks 3, and the inlet of a single sludge distributing machine 5 is communicated with the corresponding conditioning tank 3 for receiving the conditioned material to be distributed.

The single mud distributing machine 5 includes a mud distributing manifold 41, a plurality of mud distributing branch pipes 42, and a moving support mechanism. The specific structure is described as follows:

2.1, the sludge distribution header pipe 41 can be generally vertically arranged and used as an inlet for conveying materials to be distributed; is communicated with the outlet of the conditioning tank 3; a plurality of cloth mud branch pipes 42 from top to bottom set up side by side in proper order, every cloth mud branch pipe 42 includes exit end and entry end, and its exit end all is equipped with the cloth mud mouth 22 that is used for the cloth, its entry end all with cloth mud house steward 41 intercommunication. Wherein, a mud limiting plate 44 for limiting the thickness of the mud and a filter cloth cleaning nozzle 16 for cleaning the mud distributing nozzle 22 are arranged beside the outlet of each mud distributing nozzle 22. A sludge distribution branch pipe 42 for horizontally advancing to place a plurality of sludge distribution nozzles 22 thereon in a state where a gap is generated between adjacent filter press plates 15 for distributing the sludge; and the cloth is horizontally retreated to withdraw the gap after the cloth is finished.

2.2, a movable support mechanism, which is used for providing a platform for the mud distribution main pipe 41 and the plurality of mud distribution branch pipes 42 to reciprocate in the horizontal direction. The device specifically comprises a support frame 43, a support 45 and a mud distributing oil cylinder 20. The supporting frame 43 is connected with the mud distribution header pipe 41 or any mud distribution branch pipe 42, and is used for combining the mud distribution header pipe 41 and a plurality of mud distribution branch pipes 42 into an integral structure, and the supporting frame 43 is provided with a sliding block 19. The bracket 45 is a fixed supporting structure, and is provided with a track 25 matched with the slide block 19, the slide block 19 can horizontally reciprocate along the track 25, the movement of the slide block 19 can be transmitted to the mud distribution main pipe 41 and the plurality of mud distribution branch pipes 42 through the supporting frame 43, and then the horizontal reciprocating movement of the mud distribution nozzle 22 is finally realized. The end part of a telescopic rod of the mud distributing oil cylinder 20 is connected to the support frame 43 and is used for realizing the movement of the slide block 19 on the track 25 through the telescopic action of the telescopic rod, so that the horizontal reciprocating movement of the mud distributing branch pipe 42 is realized. Provides a foundation for realizing intermittent mud distribution subsequently.

2.3, the support frame 43 and the support 45 are formed by welding profile steels, the mud distribution main pipe 41 and each mud distribution branch pipe 42 are supported by the support frame 43, the track 25 is arranged on the support 45, and the position of the track 25 is fixed. The mud distributing oil cylinder 20 extends forwards, the mud distributing main pipe 41 drives each mud distributing branch pipe 42 and the sliding block 19 to slide forwards on the track 25, the mud distributing nozzle 22 enters the interlayer of the adjacent filter pressing plate 15, the electric valves of the mud distributing oil cylinder 20 and the uppermost three mud distributing branch pipes 42 are opened, when a cloth material is sprayed on the filter cloth of the filter pressing plate 15 in the upper three layers in a solid-liquid mixture mode, the driving motor of the filter cloth of the filter pressing plate 15 rotates leftwards, the filter cloth drives the solid-liquid mixture to move forwards, and then the solid-liquid mixture is uniformly distributed on the interlayer filter cloth of the filter pressing plate 15 through the mud limiting plate 14 in front of the mud distributing nozzle 22. And then, in the same way, the mud is distributed at intervals from top to bottom into a group, the mud distribution is finished until the solid-liquid mixture is uniformly distributed on the filter cloth of all the filter pressing plates, the rod of the mud distribution oil cylinder 20 retracts, the whole mud distribution bracket 43 retreats, and the mud distribution nozzles 22 also retreat from the layers of the filter pressing plates 15 until the mud distribution oil cylinder 20 finishes the retreating stroke and stops working.

The number of the sludge distribution branch pipes 42 is determined according to the number of the filter press plates 15, the number of the filter press plates 15 is reduced by one to obtain the number of the sludge distribution branch pipes 42, and the working principle of each sludge distribution branch pipe 42 is the same.

3. As shown in fig. 8-9, the filter press 7 is disposed beside the cloth outlet of the cloth distribution machine 5, and includes one or more sets of filter press devices, the number of the filter press devices is the same as that of the cloth distribution machine 5, and the filter press devices are disposed on the cloth side of the cloth distribution machine 5 in a one-to-one correspondence manner, and each set of the filter press device includes a filter press assembly, a lifting mechanism, and a press machine 1.

The filter pressing assembly comprises a plurality of filter pressing plates 15 which are sequentially arranged in parallel from top to bottom, and the upper surface of each filter pressing plate 15 is used for distributing materials. The lifting end of the lifting mechanism is connected to the filter pressing assembly and is used for driving each filter pressing plate 15 to switch between a mutually separated state and a tightly contacted state; when the adjacent filter pressing plates 15 are in a mutually separated state, the cloth distributing machine 5 distributes cloth to the filter pressing plates 15 of each layer. The press machine 1 is vertically arranged at the top of the filter pressing assembly and used for pressing down the filter pressing plate 15 at the top after mud distribution is finished, so that downward pressure is generated on the filter pressing assembly to complete filter pressing of distributed materials.

The filter press 7 may be of the following specific construction, but is not limited to the following construction:

3.1, the materials subjected to filter pressing by the filter press assembly can be sludge of a sewage treatment plant, sludge of a grain processing plant, sludge of a brewery, sludge of a dairy product plant and separated kitchen garbage.

As shown in fig. 10 to 12, the filter press plate 15 includes: a water permeable plate 34 having a flat plate structure provided with a plurality of water permeable holes; the bottom sealing plate 31 is arranged below the water permeable plate 34 at intervals, a closed water containing space is formed between the bottom sealing plate and the water permeable plate 34, and a water outlet 37 is formed in the side part of the bottom sealing plate; the filter cloth is horizontally and annularly arranged on the water permeable plate 34 and the bottom sealing plate 31, and the upper surface of the filter cloth is used for placing materials to be distributed and is also used for performing rotary motion around the water permeable plate 34 and the bottom sealing plate 31 and outputting the materials to be distributed after filter pressing outwards; i.e. the filter cloth is used for distributing and discharging mud. Usually, two rollers can be arranged at two ends inside each layer of filter cloth, one roller is an unpowered roller, the other roller is an electric roller, the filter cloth is directly driven to rotate by driving the electric roller, and the mud discharging speed is high. And the rubber sealing strip 32 is arranged at the bottom of the bottom sealing plate 31.

Wherein, be equipped with the recess around bottom seal board 31's outside a week, vertically in the recess be provided with a plurality of pressure spring 33, the one end fixed mounting of every pressure spring 33 bottom seal board 31 department, the other end is connected with reset plate 35. When the respective filter press plates 15 are pressed and tightly engaged, the return plate 35 of the lower filter press plate 15 exerts an upward pressure on the upper filter press plate 15 under the urging force of the pressing spring 33, thereby increasing the contact pressure between the adjacent filter press plates 15.

A large amount of liquid is generated around the filter press plate 15 during the filter pressing process, and the liquid enters the water receiving space through the water permeable plate 34 and is discharged from the water outlet 37.

The filter press plates 15 may also include one or two wiper plates 36, the wiper plates 36 being typically attached to the side walls of the bottom closure plate 31 on the inlet and outlet sides of the filter press plates 15, respectively. The scraper 36 is used for scraping mud to separate the mud cake from the filter cloth.

At least two or more filter pressing plates 15 are required to work simultaneously to perform filter pressing operation. After the materials are distributed on the upper surface of each filter pressing plate 15, the main press cylinder 12 moves downwards, and each upper filter pressing plate 15 is pressed downwards, in two adjacent filter pressing plates 15, the rubber sealing strip 32 at the bottom of the upper filter pressing plate 15, the filter cloth, the materials to be distributed in a solid-liquid mixing state and the filter cloth of the lower filter pressing plate 15 are pressed downwards together, the rubber sealing strip 32 of the upper filter pressing plate 15 drives the double-layer filter cloth to be in contact with the reset plate 35 in the groove 39 of the lower filter pressing plate 15, the pressing spring 33 is pressed downwards continuously to generate an upward reaction force to prop against the upper filter cloth and the rubber sealing strip 32, and the pressing is increasingly tight and plays a sealing role. But only can seal mud, can not seal water, even some water seepage will also leak into recess 39, the bottom of recess 39 has water drainage tank 40.

The cloth material of treating on the filter cloth will be wrapped up in a space that all around is relatively sealed and can not spill over, main press hydro-cylinder 12 continues to push down, and this process is treated the cloth material and is received the extrusion of upper lamination filter plate 15, lower floor filter plate 15, and waste water can be extruded, and waste water receives the effect of gravity to move down to the aperture that passes porous disk 34 flows into and forms inclosed water space of receiving between end sealing plate 3 and porous disk 34, and assembles in water drainage tank 40 and until flowing out from delivery port 37.

3.2, elevating system, be connected to on the filter pressing subassembly, its lift action is used for realizing two effects respectively: the pressure filter plates 15 are driven to rise, and uniform gaps are formed between the adjacent pressure filter plates 15; the respective filter pressing plates 15 are brought down and brought into close contact with the respective filter pressing plates 15.

The structure for realizing the lifting function has a plurality of kinds, the utility model provides a concrete structure as follows:

the utility model discloses used a plurality of link plates 23, every link plate 23 is crescent or semi-circular, and link plate 23 is conventional general spare part. And a plurality of hanging plates 23 which are connected and arranged between the adjacent filter pressing plates 15 and are used for keeping the distance between the filter pressing plates 15 in a certain distance range in a separated state. The hanging plates 23 are connected and arranged between the adjacent pressure filter plates 15, and when the pressure filter plates 15 need to be separated, a certain distance can be kept between every two pressure filter plates 15 due to the length limitation of the hanging plates 23; the hanging plate 23 is provided so as not to affect the contact and separation of the filter press plates 15, but only to restrict the filter press plates 15 from being separated at will when separated.

And a jacking oil cylinder 18 is also arranged, and the telescopic rod of the jacking oil cylinder is connected with the topmost filter pressing plate 15. When the telescopic rod of the jacking cylinder 18 extends, the lifting and the falling of each filter pressing plate 15 are driven. Meanwhile, the respective filter press plates 15 are uniformly spaced apart when they are raised and are brought into close contact when they are lowered. When the respective filter press plates 15 are at the time of creating the uniform interval, the cloth can be applied to the upper surfaces of the respective filter press plates 15. The jacking oil cylinder 18 is used for adjusting the distance between the filter pressing plates 15 through the telescopic action of the telescopic rod.

The oil cylinder 12 of the main press rises to drive the press platen 13 to rise, the jacking oil cylinder 18 rises to drive the uppermost press filter plate 15 to move upwards, the hanging plates 23 on the two sides of the press filter plate 15 also move upwards to drive the suction layer press filter plate to drive the next layer of semicircular hanging plates to move upwards, all the press filter plates 15 are opened at one time, and the jacking oil cylinder 18 also moves all the way and then maintains the pressure.

3.3, press 1, vertical setting is in the top of filter pressing subassembly for a plurality of under the 15 close contact state of filter pressing board, right the filter pressing subassembly produces decurrent pressure, in order to accomplish the filter pressing to the cloth material. The material is a solid-liquid mixture.

Specifically, the press 1 comprises a press upper platform 11, the position of which remains fixed; a main press oil cylinder 12 is arranged and comprises a cylinder body and an expansion rod, the cylinder body is fixedly connected to the upper platform 11 of the press, and the end part of the expansion rod is connected with a press pressing platform 13. The press machine 1 further comprises four filter press plate guide pillars 14, wherein the four filter press plate guide pillars 14 are vertically arranged around the main press machine oil cylinder 12 and are positioned between the press machine upper platform 11 and the bottom plate 17. The filter pressing plate 15 may further include four guide sleeves 38, each of the guide sleeves 38 is of an annular structure, and is disposed on two sides of the bottom sealing plate 31 and configured to be correspondingly sleeved on each of the filter pressing plate guide pillars 14.

In summary, the number of the conditioning tanks 3 can be one, two or more, and the number of the corresponding sludge distributing machines 5 can also be one, two or more according to the demand of the production capacity. As shown in fig. 4, when there are two conditioning tanks 3, two sludge distributing machines 5 are provided, one filter press 7 is provided, and two sets of filter press devices are provided in the filter press 7, each set of filter press device includes one press machine 1 and one filter press assembly, that is, two press machines 1 and two filter press assemblies are provided in total, and then two sludge distributing machines 5 are provided beside the two filter press assemblies to distribute sludge to the two filter press assemblies, respectively. Wherein, the filter press 7 comprising two sets of filter pressing devices is a double-head intelligent filter pressing separator.

4. As shown in fig. 1-2, the utility model discloses a full-automatic solid-liquid separation system suitable for sludge treatment can also include mud cake collecting system, and it is used for collecting the mud cake that forms after the material filter-pressing is accomplished, quantity with filter pressing device is the same, one wherein mud cake collecting system includes band conveyer and mud cake collection fill. The belt conveyor is arranged on one side of the mud cake output by the filter pressing device and used for conveying the mud cake to the mud cake collecting hopper and treating the mud cake.

The full-automatic solid-liquid separation system suitable for sludge treatment of the utility model can also comprise a sewage treatment system, which comprises a water collecting pit 4 communicated with the sewage discharge part of each filter pressing device, wherein the water collecting pit 4 is used for collecting the sewage generated in the filter pressing process; still include with the sewage treatment station 8 of the export intercommunication of sump pit 4, sewage treatment station 8 is used for right sewage carries out purification treatment. And discharging the purified sewage reaching the standard to a river channel or an underground pipe network.

The utility model discloses a full-automatic solid-liquid separation system suitable for sludge treatment can also include one and breathe in and biological deodorizing device 9, and it includes absorption tower 10 and biological deodorizing device. The absorption tower 10 comprises an exhaust gas inlet and outlet for absorbing exhaust gas generated during the conditioning tank 3, the sludge distributor 5, the filter press 7, the sludge cake collection system and/or the sewage treatment system. The biological deodorization device is communicated with a waste gas outlet of the absorption tower 10 and is used for deodorizing waste gas and then discharging the waste gas to the atmosphere.

Secondly, the utility model is suitable for a full-automatic solid-liquid separation system's of sludge treatment working method does:

s1, pretreating the material to be distributed by the material pretreatment system, and conveying the pretreated material to be distributed to the sludge distributor 5;

s2, the mud distributor 5 and the filter press 7 work alternately in a circulating way, and one working cycle is as follows: each filter pressing plate 15 of the filter press 7 is separated under the ascending action of the lifting mechanism, a uniform gap is formed under the limiting action of the hanging plate 23, and the mud distributing machine 5 moves forwards under the action of the movable supporting mechanism, so that the mud distributing nozzle 22 enters the gap and distributes the material; after the material distribution is finished, the mud distributing nozzle 22 retreats out of the gap under the action of the movable supporting mechanism, and the press machine 1 presses down each filter pressing plate 15 to finish the filter pressing of the material and form mud cakes;

s3, conveying the mud cakes generated after each filter pressing to a mud cake collecting system;

delivering sewage generated in the filter pressing process to a sewage treatment system;

the exhaust gas generated in the course of the pretreatment, the sludge distributor 5, the filter press 7, the sludge cake collection system and/or the sewage treatment system is sent to the air suction and biological deodorization device 9.

Wherein the content of the first and second substances,

1. the pretreatment process comprises the steps that materials stirred and treated by the sludge stirring bin 2 are conveyed to the conditioning tank 3 through a sludge pump to be continuously stirred, and meanwhile, a flocculating agent is pumped into the conditioning tank 3 through the automatic conditioning agent feeding device 6.

2. The mud distributing and filter pressing process comprises the following steps:

2.1, the mud distributing main pipe 41 and each mud distributing branch pipe 42 are supported by a support frame 43, a track 25 is arranged on a support frame 45, and the position of the track 25 is fixed. The mud distributing oil cylinder 20 extends forwards, the mud distributing main pipe 41 drives each mud distributing branch pipe 42 and the slide block 19 to slide forwards on the track 25, the mud distributing nozzle 22 enters the interlayer of the adjacent filter pressing plate 15, the cloth materials are sprayed on the filter cloth of the filter pressing plate 15 in a solid-liquid mixture mode, the driving motor of the filter cloth of the filter pressing plate 15 rotates leftwards, the filter cloth drives the solid-liquid mixture to move forwards, and then the solid-liquid mixture is uniformly distributed on the interlayer filter cloth of the filter pressing plate 15 through the mud limiting plate 14 in front of the mud distributing nozzle 22. After the mud distribution is finished, the rod of the mud distribution oil cylinder 20 retracts, the whole mud distribution support 43 retreats, and the mud distribution nozzles 22 also retreat from the layers of the filter pressing plates 15 until the mud distribution oil cylinder 20 finishes the retreating stroke and stops working.

2.2, the main press oil cylinder 12 drives the press pressing table 13 to move downwards to press the topmost filter pressing plate 15. The jacking oil cylinder 18 descends to drive all the filter pressing plates 15 to descend until all the filter pressing plates 15 are folded, and at the moment, the pressure of the press machine 1 is maintained for 10 minutes. In the pressure maintaining process, the filter-pressed wastewater is discharged to the main sewage collecting pipe through the water outlet 37 on the side surface of the filter pressing plate 15, the sewage of the main sewage collecting pipe directly flows into the sewage collecting pit 4, and then is pumped to the sewage treatment station 8 for treatment, and is discharged to a river or city pipe network after reaching the standard. After keeping the pressure for 10 minutes, the oil cylinder 12 of the main press drives the press table 13 to move upwards until the stroke is finished. The jacking oil cylinder 18 lifts up in an action mode to drive each layer of filter pressing plate 15 to be opened uniformly, solid-liquid matters after filter pressing become mud cakes at the moment, each layer of filter pressing plate 15 rotates filter cloth through the action of the corresponding driving motor, the filter cloth moves forward in a mud discharging direction, the mud cakes move to the end head, are separated from the filter cloth and fall onto a belt conveyor after passing through a mud scraping plate 36, and are sent out of a workshop until the mud cakes are collected in a bucket, and the whole filter pressing process is finished.

2.3, the sludge distributor 5 and the filter press 7 are two devices working in cooperation. In the initial state, the press machine 1 is retracted to the original position, the jacking oil cylinder 18 is ejected out, the filter press plates 15 are opened at uniform intervals, and the hanging plates 23 are arranged between every two filter press plates 15. The mud distributing oil cylinder 20 extends out, mud distributing nozzles 22 arranged in multiple layers enter the gaps between adjacent layers of the filter pressing plates 15 arranged in multiple layers, and when materials are distributed, namely solid-liquid mixtures after conditioning are finished, pumping and press filtering can be carried out. The sludge pump at the bottom of the conditioning tank 3 works to pump the solid-liquid mixture to the sludge distributing device 5, the driving motor of each filter pressing plate 15 acts, the filter cloth rotates around the filter pressing plate 15 where the filter pressing plate 15 is located, the solid-liquid mixture can be conveyed to the whole filter pressing plate 15 in the process, and the sludge can be evenly distributed by limiting the sludge by the sludge scraping plate 36. The mud cylinder 20 retracts pneumatically, and the whole mud distribution pipeline retreats and moves out of the gap between the adjacent filter pressing plates 15. And then, simultaneously pressing the main press oil cylinder 12 and the jacking oil cylinder 18 until all the filter presses 15 are completely closed, maintaining the pressure for 10 minutes, and finishing the whole filter pressing process. When the solid-liquid mixture is distributed to the end of the filter pressing plate 15 far away from the sludge distributing nozzle 22, the sludge pump 20 is controlled to stop working through the sensor arranged on the solid-liquid mixture, the sludge distributing oil cylinder 20 is retracted, the sludge distributing nozzle 22 is completely withdrawn from the interlayer of each filter pressing plate 15, and the sludge distribution stops.

3. The mud cake collecting process is that the belt conveyor conveys the mud cake obtained by filter pressing to a mud cake collecting hopper. The sewage treatment process is that sewage generated by filter pressing of all the filter presses 7 is discharged into the water collecting pit 4, is conveyed to the sewage treatment station 8 through the water collecting pit 4, and is subjected to sewage purification treatment, and the sewage reaching the discharge standard can be discharged into a river channel or an underground pipe network. The deodorization process is that the waste gas generated in the process of the conditioning tank 3, the mud distributing machine 5, the filter press 7, the mud cake collecting system and/or the sewage treatment system is collected into the absorption tower 10 and then is conveyed to the biological deodorization device through the absorption tower 10, and the waste gas is discharged into the atmosphere after the deodorization treatment reaches the standard.

The utility model discloses a roller that sets up on every lamination filter plate is rotatory, drives the filter cloth rotation and is used for going out mud, so each layer can go out mud simultaneously, and whole mud is efficient. Whereas the usual discharge apparatus is a continuous Z-folded filter cloth, the discharge time for a filter cake to carry this form of filter cloth over is relatively long.

The utility model discloses a filter cloth of pressure filter vertically overlaps the setting, and cloth mud and filter-pressing can be accomplished at same station, compare in the press of multistation area reduction. The utility model discloses a press can be four post presses or frame-type press, dewaters by force to the material between the filter cloth, because this kind of press tonnage is big, can reach 320t the biggest, so its dehydration rate can reach about 38% the highest. The separated product generally comprises mud cakes with the water content of about 38-45% and separated sewage. The solid-liquid separation aims to provide conditions for later-stage mud cake landfill, incineration and organic fertilizer fermentation. After the sludge is dehydrated, the pollution of a landfill and underground water can be reduced; the incineration cost can be reduced after the sludge is dehydrated; after the sludge is dehydrated, the fermentation speed of the organic fertilizer can be increased, the pollution to the environment and atmosphere can be greatly reduced, and long-term economic and social benefits are achieved.

In the prior art, the basic requirement of the filter cloth in the filter press is that the filter cloth has better water permeability. In a Z-shaped filter cloth arrangement mode which is usually used, 500-meter-long filter cloth can be used at one station of the Z-shaped filter cloth arrangement mode, and the filter cloth needs to reach certain strength because the span of the filter cloth is large and the filter cloth also needs to bear certain pressure; however, in order to facilitate folding, the filter cloth is required to have certain softness, and certain required water permeability must be ensured. The requirements for the filter cloth are high in finishing and the cost is high. The filter cloth in the utility model is a closed ring structure which is arranged around each filter pressing plate, and the length of a single filter pressing plate is usually 1-2 meters, so the requirements of the bearing capacity and the softness of the filter cloth are reduced, and the requirement of the water permeability which only needs to be satisfied is met.

Claims (9)

1. The full-automatic solid-liquid separation system suitable for sludge treatment is characterized by comprising a material pretreatment system and a sludge distribution and filter pressing device; wherein the content of the first and second substances,

the material pretreatment system comprises:

the sludge stirring bin (2) is used for containing and stirring materials to be distributed;

one or more conditioning tanks (3) which are communicated with the sludge stirring bin (2) and used for receiving the materials to be distributed pumped from the sludge stirring bin (2), wherein an automatic conditioner feeding device (6) is arranged on the conditioning tanks;

cloth mud filter pressing device includes:

one or more than one sludge distributing machine (5) with the same number as the conditioning tanks (3), and the inlets of the sludge distributing machines are communicated with the corresponding conditioning tanks (3) and used for receiving the conditioned materials to be distributed;

a pressure filter (7), set up in other in the cloth export of cloth mud machine (5), it includes one set or the filter pressing device more than one set, filter pressing device's quantity with the quantity of cloth mud machine (5) is the same, and the setting of one-to-one is in the cloth side of cloth mud machine (5), every set filter pressing device includes filter pressing subassembly, elevating system and press (1):

a filter pressing component, which comprises a plurality of filter pressing plates (15) arranged in parallel from top to bottom, wherein the upper surface of each filter pressing plate (15) is used for distributing materials,

the lifting end of the lifting mechanism is connected to the filter pressing assembly and is used for driving each filter pressing plate (15) to be switched between a mutually separated state and a tightly contacted state; when the adjacent filter pressing plates (15) are in a mutually separated state, the sludge distributor (5) distributes the materials on the filter pressing plates (15) of each layer;

the press machine (1) is vertically arranged at the top of the filter pressing assembly and is used for pressing down the filter pressing plate (15) at the top after the mud distribution is finished so as to complete the filter pressing of the distributed materials and form mud cakes.

2. The fully automatic solid-liquid separation system suitable for sludge treatment according to claim 1 further comprising a mud cake collecting system for collecting mud cakes formed after filter pressing of materials, the number of the mud cakes being the same as that of the filter pressing device, one of the mud cake collecting systems comprising:

the belt conveyor is arranged on one side of the output mud cake of the filter pressing device and is used for conveying the mud cake;

and the mud cake collecting hopper is connected with the belt conveyor and is used for receiving the mud cakes.

3. The fully automatic solid-liquid separation system for sludge treatment according to claim 1 or 2, wherein the fully automatic solid-liquid separation system for sludge treatment further comprises a sewage treatment system, the sewage treatment system comprising:

the water collecting pit (4) is communicated with the sewage discharge part of each filter pressing device and is used for collecting sewage generated in the filter pressing process;

and the sewage treatment station (8) is communicated with the outlet of the water collecting pit (4) and is used for purifying the sewage.

4. The fully automatic solid-liquid separation system for sludge treatment according to claim 3 wherein said fully automatic solid-liquid separation system for sludge treatment further comprises a suction and bio-deodorization device (9), said suction and bio-deodorization device (9) comprising:

an absorption tower (10) comprising an exhaust gas inlet and an exhaust gas outlet and used for absorbing the exhaust gas generated in the process of the conditioning tank (3), the sludge distributor (5), the filter press (7), the sludge cake collecting system and/or the sewage treatment system;

and the biological deodorization device is communicated with the waste gas outlet of the absorption tower (10) and is used for deodorizing the waste gas and discharging the waste gas to the atmosphere after reaching the standard.

5. The fully automatic solid-liquid separation system suitable for sludge treatment according to claim 1 or 2, wherein the sludge distributor (5) comprises:

the mud distributing main pipe (41) is vertically arranged and used for conveying materials to be distributed;

a plurality of cloth mud branch pipe (42), from top to bottom horizontal array sets up, every cloth mud branch pipe (42): the outlet ends of the two mud distributing nozzles are provided with mud distributing nozzles (22) for distributing the mud, and the inlet ends of the two mud distributing nozzles are communicated with the mud distributing main pipe (41);

the movable support mechanism is used for providing a platform for reciprocating movement of the mud distribution main pipe (41) and the plurality of mud distribution branch pipes (42) in the horizontal direction;

the movable supporting mechanism is used for horizontally moving forward to place a plurality of mud distributing nozzles (22) on the movable supporting mechanism in a gap between adjacent filter pressing plates (15) for distributing the mud; and the cloth is horizontally retreated to withdraw the gap after the cloth is finished.

6. The fully automatic solid-liquid separation system suitable for sludge treatment according to claim 5 wherein the mobile support mechanism comprises:

the support frame (43) is arranged on the mud distribution main pipe (41) or any one of the mud distribution branch pipes (42), and a sliding block (19) is arranged on the support frame (43);

a bracket (21) which is provided with a track (25) matched with the sliding block and is used for realizing the horizontal reciprocating movement of the supporting frame (43) thereon;

and the end part of a telescopic rod of the mud distributing oil cylinder (20) is connected to the support frame (43) and is used for realizing the movement of the sliding block (19) on the track (25) through the telescopic action of the telescopic rod, so that the horizontal reciprocating movement of the mud distributing branch pipe (42) is realized.

7. The fully automatic solid-liquid separation system suitable for sludge treatment according to claim 1 or 2, wherein the filter press plate (15) comprises:

a permeable plate (34) which is a flat plate structure provided with a plurality of permeable holes;

the bottom sealing plate (31) is arranged below the water permeable plate (34) at intervals, a closed water containing space is formed between the bottom sealing plate and the water permeable plate (34), and a water outlet (37) is formed in the side part of the bottom sealing plate;

the filter cloth is horizontally and annularly arranged on the water permeable plate (34) and the bottom sealing plate (31), and the upper surface of the filter cloth is used for placing materials to be distributed and is also used for performing rotary motion around the water permeable plate (34) and the bottom sealing plate (31) and then outputting the materials to be distributed after filter pressing outwards;

and the rubber sealing strip (32) is arranged at the bottom of the bottom sealing plate (31).

8. The fully automatic solid-liquid separation system suitable for sludge treatment according to claim 1 or 2, wherein the lifting mechanism comprises:

the hanging plates (23) are connected and arranged between the adjacent filter pressing plates (15) and used for keeping the distance between the filter pressing plates (15) in a certain distance range in a separated state;

the telescopic rod of the jacking oil cylinder (18) is connected to the topmost filter pressing plate (15), and the bottom of the cylinder body of the jacking oil cylinder (18) is fixedly arranged on the bottom plate (17); the telescopic rod is used for realizing the distance adjustment between the filter pressing plates (15) through the telescopic action of the telescopic rod.

9. The fully automatic solid-liquid separation system suitable for sludge treatment according to claim 8 wherein said press (1) comprises:

a press upper platform (11);

the main press oil cylinder (12) is fixedly connected to the upper platform (11) of the press;

the pressing platform (13) is connected to the end part of the telescopic rod of the oil cylinder (12) of the main press;

the four filter pressing plate guide columns (14) are vertically arranged between the upper platform (11) of the press and the bottom plate (17) and are positioned around the main press oil cylinder (12).

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