CN214032197U - Sludge re-dewatering squeezing system - Google Patents

Abstract

The utility model discloses a sludge re-dewatering squeezing system, which comprises an upper filter belt, a lower filter belt and a squeezing roller system, wherein the squeezing roller system is arranged at the overlapped part of the upper filter belt and the lower filter belt; the press roll system comprises a multi-stage press roll, and the diameter of the press roll is gradually reduced along the advancing direction of the filter belt. The upper filter belt and the lower filter belt pass through the primary squeezing roller and the secondary squeezing roller, and the sludge in the upper filter belt and the lower filter belt extrudes the moisture of the sludge under the pressure of the filter belts. The diameter of the squeezing roller is reduced for the second time, the wrap angle is reduced, the roller diameter is gradually reduced, the extrusion force exerted on the sludge is gradually increased, and the water in the sludge is extruded out. The utility model discloses an equipment energy consumption is low, and is efficient, and degree of automation is high, and the reduction of mud moisture content does benefit to the compost in later stage, burns or the mummification is handled. Reduce energy consumption and facilitate the operation of equipment.

Description

Sludge re-dewatering squeezing system

Technical Field

The utility model relates to a dirty useless processing field specifically is a mud dewaters system of squeezing again.

Background

The current treatment and disposal methods mainly include: the sludge is used for landfill, agriculture, building material utilization, sludge incineration and the like, and because the water content of the sludge is high, a dehydration and drying process is required before treatment, so that the effective treatment of reduction, stabilization and harmless recycling of the sludge can be achieved.

In the current sludge treatment process, a belt type squeezing dehydrator is widely applied, the water content of the sludge is about 98-99%, and the water content of the dehydrated sludge reaches about 80%. Because the relative water content of 80 percent of sludge is still very high, the sludge is still not suitable for incineration and landfill, composting or drying treatment is carried out in the later period, the occupied area and the energy consumption are large, and the treatment in the later period is not beneficial.

Disclosure of Invention

In order to solve the problems, the following technical scheme is adopted in the application:

according to an aspect of the present application, there is provided a sludge re-dewatering press system, characterized in that: the washing and squeezing device comprises a squeezing and dewatering system and a washing and squeezing system, wherein the squeezing and dewatering system comprises an upper filter belt, a lower filter belt and a squeezing roller system, and the squeezing roller system is arranged at the overlapped part of the upper filter belt and the lower filter belt; the press roll system comprises a multi-stage press roll, and the diameter of the press roll is gradually reduced along the advancing direction of the filter belt; the upper filter belt and the lower filter belt are respectively provided with a deviation rectifying roller system and a displacement sensor; the cleaning and squeezing system is arranged at the return position of the upper filter belt and/or the lower filter belt and comprises a cleaning device and a pair of squeezing wheels, and the upper filter belt and/or the lower filter belt pass between the squeezing wheels.

And a mud distribution system is arranged at the initial section of the lower filter belt and comprises a group of symmetrical reverse spirals.

The upper filter belt is provided with an upper driving roller at the downstream of the press roller system, the lower filter belt is provided with a lower driving roller at the downstream of the press roller system, and the upper driving roller and the lower driving roller are positioned near the discharge opening.

An upper scraper is arranged near the upper transmission roller, and a lower scraper is arranged near the lower transmission roller.

Water collecting discs are arranged below the squeezing roller system, the hairbrush and the squeezing wheel.

The cleaning unit includes a nozzle and a brush.

The utility model discloses an advantage and beneficial effect do:

the utility model relates to a sludge re-dewatering squeezing system, which comprises an upper filter belt, a lower filter belt and a squeezing roller system, wherein the squeezing roller system is arranged at the overlapped part of the upper filter belt and the lower filter belt; the press roll system comprises a multi-stage press roll, and the diameter of the press roll is gradually reduced along the advancing direction of the filter belt. The upper filter belt and the lower filter belt pass through the primary squeezing roller and the secondary squeezing roller, and the sludge in the upper filter belt and the lower filter belt extrudes the moisture of the sludge under the pressure of the filter belts. The diameter of the squeezing roller is reduced for the second time, the wrap angle is reduced, the roller diameter is gradually reduced, the extrusion force exerted on the sludge is gradually increased, and the water in the sludge is extruded out. The water content of the dewatered sludge can reach 73-70%, and the sludge can be reduced by 26% on the premise of not adding a regulator and not increasing the quality of the dry sludge. The utility model discloses an equipment energy consumption is low, and is efficient, and degree of automation is high, and the reduction of mud moisture content does benefit to the compost in later stage, burns or the mummification is handled. Reduce energy consumption and facilitate the operation of equipment.

The upper filter belt and the lower filter belt are respectively provided with a deviation rectifying roller system and a displacement sensor, when the relative position of the filter belt relative to the rollers deviates, the deviation degree can be detected in time, and the deviation of the filter belt is adjusted through the deviation rectifying roller system, so that the filter belt can be ensured to keep continuous and stable linear operation among the squeezing roller systems.

The cleaning and squeezing system is arranged at the return position of the upper filter belt and/or the lower filter belt and comprises a cleaning device and a pair of squeezing wheels, and the upper filter belt and/or the lower filter belt pass between the squeezing wheels. Cleaning the residual sludge on the filter belt, squeezing to remove water, and making the clean and dry filter belt enter the next squeezing cycle

Drawings

FIG. 1 is a schematic structural diagram of the present invention

FIG. 2 is a schematic structural view of the squeezing and dewatering system of the present invention

FIG. 3 is a schematic view of the structure of the cleaning device of the present invention

FIG. 4 is a schematic view of the squeezing device of the present invention

Wherein:

1-sludge distribution system, 2-squeezing dehydration system, 21-upper filter belt, 211-first tensioning roller system, 212-first deviation correcting roller system, 22-lower filter belt, 221-second tensioning roller system, 222-second deviation correcting roller system, 23-squeezing roller system, 24-water receiving disc, 25-upper driving roller, 26-lower driving roller, 31-upper scraper, 32-lower scraper, 33-discharge opening, 4-cleaning squeezing system, 41-shell, 42-nozzle, 43-hairbrush, 44-fixing plate, 45-upper wheel seat, 46-lower wheel seat, 47-squeezing wheel, 48-bolt, 49-spring, 5-box body and 6-active driving transmission device.

Detailed Description

The present invention will be described in further detail with reference to specific examples, which are provided for illustrative purposes only, and are not intended to be limiting, and the scope of the present invention should not be limited thereby.

As shown in figure 1, the utility model discloses a sludge re-dewatering squeezing system, including cloth mud system 1, squeeze dewatering system 2, scrape mud discharge system 3, wash crowded dry system 4, box 5, initiative transmission 6. The sludge distribution system 1 is used for uniformly distributing the sludge on a filter belt of the squeezing and dewatering system 2, and the filter belt presses water in the sludge step by step through a squeezing roller system of the squeezing and dewatering system 2. And the sludge scraping and discharging system scrapes the dried sludge on the filter belt off the filter belt and discharges the dried sludge through a discharge opening. And then the cleaning and squeezing system 4 cleans and squeezes the residual sludge on the filter belt for dewatering, so that the clean and dry filter belt enters the next squeezing cycle.

The sludge distribution system 1 is arranged at a feeding port, namely the initial position of a lower filter belt 22 of the squeezing dehydration system 2, and the sludge distribution system 1 comprises a group of symmetrical reverse screws, so that the uniform feeding and uniform thickness of the equipment are ensured.

As shown in fig. 2, the press dewatering system 2 includes an upper filter belt 21 and a lower filter belt 22, and a multistage press roll system 23 is provided at an overlapping portion of the upper filter belt 21 and the lower filter belt 22 to press-dewater sludge between the upper filter belt 21 and the lower filter belt 22. The press roll system 23 comprises a plurality of stages of press rolls, the diameter of the press rolls is reduced from front to back along the advancing direction of the filter belt, the pressing force is gradually increased, and the water content of the sludge is reduced. The upper and lower filter belts of the utility model adopt special materials, can bear high tensile force and good dehydration capacity, and effectively remove the moisture in the sludge.

A water receiving tray 24 is arranged below the press roller system 23, and the water receiving tray 24 is used for receiving water extruded from the press roller system 23 and then intensively discharging the water out of the box body 5 through a pipeline.

Besides the press roll system 23, a first tensioning roll system 211 and a first deviation correcting roll system 212 are also arranged on the running path of the upper filter belt 21; the running path of the lower filter belt 22 is also provided with a second tensioning roller system 221 and a second deviation correcting roller system 222. The second tensioning roller system 221 is arranged obliquely below the first tensioning roller system 211, and the part between the upstream of the second tensioning roller system 221 and the first tensioning roller system 211 corresponds to the sludge distribution system 1 so as to receive the sludge output by the sludge distribution system 1.

The first deviation rectifying roller system 212 and the second deviation rectifying roller system 222 are controlled according to the control signal, when the displacement sensor detects that the positions of the upper filter belt 21 and the lower filter belt 22 on the roller systems deviate, the PLC automatic control system respectively outputs control signals to the first deviation rectifying roller system 212 and the second deviation rectifying roller system 222, and controls corresponding execution elements to automatically rectify and adjust the upper filter belt 21 and the lower filter belt 22, so that the filter belts of the squeezing dewatering system 2 can be ensured to keep continuous and stable linear running among the squeezing roller systems.

The upper driving roller 25, the lower driving roller 26 are driven to rotate by the driving transmission device 6, and the rotating torque is transmitted to the first tensioning roller system 211, the second tensioning roller system 221, the first deviation correcting roller system 212, the second deviation correcting roller system 222 and the like through the upper filtering belt 21 and the lower filtering belt 22.

As shown in FIG. 1, the sludge discharge system comprises an upper scraper 31, a lower scraper 32 and a discharge opening 33, wherein the fixed end of the upper scraper 31 is fixedly connected with the box 5 above the discharge opening 33, and the free end of the upper scraper 31 is contacted with the upper filter belt 21. The fixed end of the lower scraper 32 is fixedly connected with the upper box 5 of the discharge opening 33, and the free end of the lower scraper 32 is contacted with the lower filter belt 22. The utility model discloses preferably set up the last driving roller 25 that supports upper filter belt 21 in the corresponding position of last scraper blade 31, set up the lower driving roller 26 that supports lower filter belt 22 in the corresponding position of lower scraper blade 32.

As shown in fig. 3, the washing and wringing system 4 is provided at the return position of the upper and lower belts 21 and 22, respectively, and includes a washing device and a wringing device. Wherein the cleaning device comprises a housing 41, a nozzle 42 and a brush 43, the housing 41 internally accommodates the nozzle 42 and opens toward the outer surface of the upper filter belt 21. The fixed end of the brush 43 is attached to the periphery of the opening and the free end wipes the outer surface of the upper filter belt 21. The rivers of nozzle 42 output are sprinkled to last filter belt 21 along the trend of brush 43, guarantee to wash it clean when last filter belt 21 return stroke, prevent to go up filter belt 21 and block up, and brush 43 shelters from and the drainage prevents the splash of water simultaneously.

As shown in fig. 4, the wringing device includes a fixing plate 44, an upper wheel seat 45, a lower wheel seat 46, a squeezing wheel 47, a bolt 48, and a spring 49. Wherein the fixed plate 44 is fixed on the frame inside the box body 5, and one end of the upper wheel seat 45 and one end of the lower wheel seat 46 are respectively hinged with the fixed plate 44 and can rotate around the hinged shaft within a certain range. The other ends of the upper wheel seat 45 and the lower wheel seat 46 are connected together through a bolt 48, a spring 49 is sleeved on the bolt 48, and the spring 49 ensures that the distance between the upper wheel seat 45 and the lower wheel seat 46 is variable. The relative positions of the upper wheel seat 45 and the lower wheel seat 46 are respectively provided with a squeezing wheel 47, and the outlines of the two squeezing wheels 47 are connected.

A water receiving tray 24 is also arranged below the cleaning device and the squeezing device of the cleaning squeezing system 4, and flushing water can be converged with sewage which is separated from the squeezing roller system 23 and is discharged into a sewage pipeline.

The crowded water of preferred filter belt presses dry system, both ends are hinge mechanisms, can adjust from top to bottom along with the filter belt, and the pressure adjustment of spring is passed through to the size of extrusion force, and this structure cylinder is rotatory along with the filter belt, extrudes the sparge water of filter belt, and the filter belt water content of guaranteeing into mud is few, and is dry, does benefit to the dehydration of mud.

The utility model discloses at the during operation, mud evenly paves on lower filter belt 22 through cloth mud system 1, and transmission 25, the rotation of lower transmission 26 are gone up in the drive of main gear 6 to filter belt 21, lower filter belt 22 and the mud on it move along the roller system in the drive. The water of the sludge is squeezed out by the pre-squeezing roller and the secondary squeezing roller on the squeezing roller system 23 under the pressure of the upper filter belt 21 and the lower filter belt 22.

The sludge after being pressed and dried is scraped off by an upper scraper 31 and a lower scraper 32 at the upper driving roller 25 and the lower driving roller 26 respectively, and then enters the subsequent treatment process or loading and outward transportation.

The discharged upper filter belt 21 and the discharged lower filter belt 22 continue to run, bonded sludge is washed away by the cleaning device of the cleaning and squeezing system 4, the sludge of the filter belts is squeezed out by the squeezing device, and then the clean filter belts continue to receive the sludge of the sludge distribution system 1 through the first tensioning roller system 211 and the second tensioning roller system 221, so that a cycle is completed.

Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.

Claims (6)

1. The utility model provides a mud is dewatering system of squeezing again which characterized in that: the washing and squeezing device comprises a squeezing and dewatering system and a washing and squeezing system, wherein the squeezing and dewatering system comprises an upper filter belt, a lower filter belt and a squeezing roller system, and the squeezing roller system is arranged at the overlapped part of the upper filter belt and the lower filter belt; the press roll system comprises a multi-stage press roll, and the diameter of the press roll is gradually reduced along the advancing direction of the filter belt; the upper filter belt and the lower filter belt are respectively provided with a deviation rectifying roller system and a displacement sensor;

the cleaning and squeezing system is arranged at the return position of the upper filter belt and/or the lower filter belt and comprises a cleaning unit and a pair of squeezing wheels, and the upper filter belt and/or the lower filter belt pass between the squeezing wheels.

2. The sludge re-dewatering press system of claim 1, wherein: and a mud distribution system is arranged at the initial section of the lower filter belt and comprises a group of symmetrical reverse spirals.

3. The sludge re-dewatering press system of claim 1, wherein: the upper filter belt is provided with an upper driving roller at the downstream of the press roller system, the lower filter belt is provided with a lower driving roller at the downstream of the press roller system, and the upper driving roller and the lower driving roller are positioned near the discharge opening.

4. The sludge re-dewatering press system of claim 3, wherein: an upper scraper is arranged near the upper transmission roller, and a lower scraper is arranged near the lower transmission roller.

5. The sludge re-dewatering press system of claim 1, wherein: water collecting discs are arranged below the squeezing roller system, the hairbrush and the squeezing wheel.

6. The sludge re-dewatering press system of claim 1, wherein: the cleaning unit includes a nozzle and a brush.

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