CN201756496U

CN201756496U - Wet-sludge low-temperature steam drier

Info

Publication number: CN201756496U
Application number: CN2010202396212U
Authority: CN
Inventors: 史海峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-28
Filing date: 2010-06-28
Publication date: 2011-03-09
Anticipated expiration: 2020-06-28

Abstract

The utility model relates to a wet-sludge low-temperature steam drier, which comprises a sealing box, a spindle, a drive motor, sludge inlet tubes, a sludge collecting bin, a steam inlet tube, a steam outlet tube, steam heat exchange sludge coating boards and sludge distributor components. The drier is provided with a sludge pump and a sludge distributor, the sludge distributor is respectively connected with sludge distribution chambers formed among the adjacent steam heat exchange sludge coating boards and the sludge distributor by the aid of the corresponding sludge inlet tubes, the sludge distributor components are radially fixedly mounted on the spindle between the adjacent steam heat exchange sludge coating boards and comprise a driving arm fixedly assembled with the spindle, a driven arm hinged with the spindle and a sludge inlet slide way, one end of the sludge inlet slide way is fixedly mounted or hinged on the inner side of the upper end of the driven arm, the top end of the driving arm is slidably connected with the sludge inlet slide way, and a sludge inlet arranged on the sludge inlet slide way corresponds to the sludge inlet tube. The drier is low in manufacturing cost, less in energy consumption, fast in drying, convenient for overhauling and maintenance and suitable for drying large quantities of sludge, thereby realizing reduction and recycling of sludge. The drier is an upgraded product of an existing sludge drier, and is particularly suitable for automated sludge treatment in sewage treatment plants.

Description

Wet sludge at low temperature steam dryer

Technical field

The utility model relates to the drying plant in environmental protection field, relates to material dewatering, especially a kind of wet sludge at low temperature steam dryer.

Background technology

Carry out the mud that produces after the water treatment for sewage work, generally be to adopt organic polymer coargulator to flocculate, through concentrate, behind the mechanical dehydration, water ratio is generally about 85%, dehydrated sludge is the thickness colloidal substance, as adopt traditional drying treatment facility and technology, adopting steam or deep fat in drying process is thermal source, with dryings such as tray drier or screw propulsion drying machines; Or in special conveying and mixing equipment, allow wet mud mix with the backflow sludge-drying, to reach rational solid content and to its drying.These traditional drying plants are bulky, power consumption height, cost height, processing costs height.

Handle for above-mentioned sludge of sewage treatment plants, drying only is a link in the middle of it, its ultimate processing generally still is that burn to well dry back, and the high-temperature flue gas that produces after the sludge incineration need be 450 ℃ to 250 ℃ interval realization rapid drawdowns, traditional technology is to take the water temperature reduction way, need to consume great amount of water resources and need a large amount of facility investments, technology is more complicated also.

By retrieval, found many pieces of relevant patent documentations, wherein following two pieces of patents and present patent application are comparatively approaching.One: a kind of sludge drier (CN201424423), comprise motor, step-down gear, gear drive, transmission shaft, cylindrical shell, shell, and agitating wing, motor, step-down gear and gear drive are positioned at the top of cylindrical shell, motor and the running of step-down gear driven gear transmission rig, gear drive drives and vertically is positioned at the intravital transmission shaft rotation of tube, transmission shaft drives position agitating wing rotation thereon, described inner barrel is a multi-segment structure, be provided with a plurality of heat-transfer surfaces up and down in the space, cylinder top one side is provided with wet mud import, the opposite side of the cylinder top relative with wet mud import is provided with the superheated vapour import, is provided with dewatered sludge outlet and superheated vapour outlet in the bottom of cylindrical shell; It two is a kind of screw sludge drier (CN200996781), comprise cylindrical shell, inner barrel is provided with the combustion chamber, piston in the combustion chamber connects transmission rod, the centre of cylindrical shell is provided with tubular shaft, the parallel centre that is built in tubular shaft of transmission rod, tubular shaft surface be fixed with around water screw, the transmission rod transmission rig, transmission rig rotates by the gear driven tubular shaft.

Above-mentioned two pieces of documents and present patent application have more different on technical scheme.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art part, provides a kind of simple in structure, design science, drying effect is good, production efficiency is high is used for the wet sludge at low temperature steam dryer of super sticky material exsiccant.

The utility model solves its technical problem and is achieved through the following technical solutions:

A kind of wet sludge at low temperature steam dryer, comprise seal case, main shaft, drive-motor, advance the mud pipe, the collection hopper dredger, steam inlet tube, steam goes out pipe, steam heat-exchanging applies mud plate and cloth mud device assembly, be provided with the collection hopper dredger in the seal case bottom, in seal case, be horizontally installed with main shaft, this main shaft is driven by drive-motor, the uniform steam heat-exchanging that is fixed with of parallel interval applies the mud plate array on the intravital main shaft of watertight chest is axial, the deposited mud plate array of this steam heat-exchanging is communicated with the steam inlet tube on its top and the steam of bottom goes out pipe, the steam inlet tube on top applies the mud plate with each steam heat-exchanging respectively and is communicated with, the main shaft diameter of applying between the mud plate at adjacent steam heat-exchanging upwards all is fixed with cloth mud device assembly, it is characterized in that:

(1) this drying machine is equipped with sludge pump on seal case, and this sludge pump is fitted with the mud divider, and this divider applies formed cloth mud chamber between the mud plate by advancing each adjacent steam heat-exchanging of mud pipe coupling respectively;

(2) apply main shaft diameter between the mud plate at adjacent steam heat-exchanging and make progress the cloth mud device assembly that installed by the passive arm of the master arm that installs with main shaft, main shaft hinge dress and enter muddy and slippery road and constitute, an end that enters muddy and slippery road installs or cuts with scissors the inboard, upper end that is contained in passive arm, the top of master arm is slidingly mounted on the into muddy and slippery road, advancing to be shaped on a mud inlet on the muddy and slippery road, this mud inlet correspondence is advanced the mud pipe.

And, on both sides, the master arm outside cleaning shoe is installed all, on both sides, the passive arm outside hairbrush row is installed.

And, installing a spring in the end, muddy and slippery road of advancing of master arm one side, the other end of this spring is packed on the main shaft, is equipped with one in the outside, upper end of passive arm and can applies the damping wheel that guiding slides on the mud plate at adjacent steam heat-exchanging.

And the end, muddy and slippery road of advancing of described master arm one side installs a wireline, and the other end of wireline and a leaf spring install, and this leaf spring and main drive shaft are an angle and are packed on the main shaft, and rope capacity is adjustable.

And, on the seal case advance the mud pipe by one advance mud take over the deposited mud plate of adjacent steam heat-exchanging between cloth mud chamber be communicated with.

Advantage of the present utility model and beneficial effect are:

1, the mud heating evaporation of this drying machine adopts steam heat-exchanging to apply thermal conduction heat exchange form between mud plate surface-mud film, with the water vapor thermal source (can high-temperature flue gas handling the water vapor that mud produces is thermal source), in vapour passage, form negative pressure, environment protecting is good, the drying efficiency height, the main mud of handling water ratio 55%～60%, with the difficulty that transmission power is big, the heat transfer vaporization efficiency is low that the high viscous force that solves mud this moment brings, also can solve the problem of mud self calorific value mummification shortage of heat simultaneously.

2, this dryer design the multi-disc steam heat-exchanging apply the mud plate and form parallel array and constitute the drying machine main body, thermal source steam applies vapour passage in the mud plate heat that sheds from the without hindrance steam heat-exchanging that enters and pass at a high speed these arranged in arrays of steam inlet, with heat conducting form heat is passed to the mud film, the heat exchange effect is very good, economic environmental protection.

3, this drying machine adopts airtight work, and seal case adopts metal, plastic or other material, also can adopt concrete wall surface to make, thereby keeps vapor dry cell relative with atmosphere airtight; The induced draft fan that the steam that produces in the drying sludge process in kiln connects by vapour outlet is discharged outdoor, makes to keep a little negative pressure in the kiln; Also can establish the blast inlet of an installation vapor heat exchanger, replenish hot dry wind so that evaporative process is quickened to kiln.

4, this drying machine adopts cloth mud device assembly that the inside and outside plate face that steam heat-exchanging applies the mud plate is removed dried mud, the wet mud film of coating, reasonable in design, drying efficiency height, effective.

5, this drying machine steam (or other steam that are easy to get) that the prime mud drying process is produced comes sludge-drying as the drying source of the corresponding levels, overcome and utilized the insufficient difficulty of mud self calorific value dewatered sludge calorific value, the big problem of power consumption when having solved mud viscous force maximum, processing unit and flow process have been simplified, realized low cost of equipment, low working cost, power consumption is few, fast drying, maintenance and series of advantages such as easy to maintenance, be very suitable for mass disposal mud, thereby realize minimizing, the resource utilization of mud.

6, the utility model is simple in structure, reasonable in design, drying effect is good, the production efficiency height, the drier structure compactness, low cost of manufacture, power consumption is few, fast drying, maintenance and easy to maintenancely be suitable for sludge-drying in enormous quantities, thereby realizing minimizing, the resource utilization of mud, is the regeneration product of existing sludge drier, is particularly suitable for the automatization sludge treatment of sewage work.

Description of drawings

Fig. 1 is a front view of the present utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the vertical view of Fig. 1;

Fig. 4 is that the A-A of Fig. 1 is to cross-sectional view;

Fig. 5 is that the B-B of Fig. 3 is to cross-sectional view;

Fig. 6 is the cloth mud device unit construction enlarged diagram (under the beginning cloth mud state) of Fig. 4;

The vertical view of Fig. 7 Fig. 6;

Fig. 8 is the structural representation under the cloth mud done state of Fig. 6;

Fig. 9 is the structural representation (under the beginning cloth mud state) of another kind of cloth mud device assembly;

Figure 10 is the structural representation under the cloth mud done state of Fig. 9.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing, by specific embodiment, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.

A kind of wet sludge at low temperature steam dryer, comprise seal case 5, main shaft 6, drive-motor 10, driving chain 11, spindle carrier 7, advance mud pipe 3, collection hopper dredger 8, steam inlet tube 4, steam go out pipe 18, steam heat-exchanging applies mud plate 16 and cloth mud device assembly, seal case is packed on the base rack (not having label), be provided with the collection hopper dredger in the seal case bottom, this collection hopper dredger is equipped with sludge out pipe 9; In seal case, be horizontally installed with main shaft, the two ends of this main shaft are installed on the spindle carrier, main shaft outside seal case wherein end engagement is equipped with the driving chain that is driven by drive-motor, being chain shown in the present embodiment accompanying drawing, also can be other type of drive such as belt, gear etc.The uniform steam heat-exchanging that is fixed with of parallel interval applies the mud plate array on the intravital main shaft of watertight chest is axial, the deposited mud plate array of this steam heat-exchanging is communicated with the steam inlet tube on its top and the steam of bottom goes out pipe, condensed water discharge pipe 17, and the steam inlet tube on top applies the mud plate by steam connection tube 19 (referring to Fig. 5) and each steam heat-exchanging respectively and is communicated with; The main shaft diameter of applying between the mud plate at adjacent steam heat-exchanging upwards all is fixed with cloth mud device assembly, this cloth mud device assembly is by the master arm 14 that installs with main shaft, main shaft cuts with scissors the passive arm 15 of dress and enters muddy and slippery road 21 and constitutes, on both sides, the master arm outside cleaning shoe 20 is installed all, on both sides, the passive arm outside hairbrush row (not having label) is installed, an end that enters muddy and slippery road installs or cuts with scissors the inboard, upper end that is contained in passive arm, the top of master arm is slidingly mounted on the into muddy and slippery road, advancing to be shaped on a mud inlet 23 on the muddy and slippery road, the end, muddy and slippery road of advancing in master arm one side installs a spring 24 (referring to Fig. 6,7,8), the other end of this spring is packed on the main shaft; Be equipped with one (also can one group) can apply the damping wheel 22 that guiding slides on the mud plate at adjacent steam heat-exchanging in the outside, the upper end of passive arm.In the accompanying

drawing

9,10 that present embodiment provides, be to adopt the end, muddy and slippery road of advancing of master arm one side to install a wireline, the other end of wireline and a leaf spring 25 install, this leaf spring and main drive shaft are an angle and are packed on the main shaft, rope capacity is adjustable, and the function of this structure is identical with adopting spring and damping wheel.

Corresponding each adjacent steam heat-exchanging applies formed cloth mud chamber between the mud plate, all be fixed with one and advance mud and take over 13 on seal case, each advances mud and takes over by advancing the mud pipe coupling respectively to be fixed with mud dispenser system that motor 1, mud divider 2 and divider support 12 constituted on seal case.

Steam heat-exchanging applies the mud plate and can be made by aluminium alloy extrusions combination or other high thermal conductivity materials, and it can be square, rectangle or other suitable shapes that steam heat-exchanging applies mud plate shape; Main shaft can be installed in the center that square steam heat-exchanging applies the mud plate, and cloth mud device assembly forms circular mud film around main axis rotation cloth mud, also can be installed in square steam heat-exchanging and apply on a jiao of mud plate, and cloth mud device assembly forms fan-shaped mud film around main shaft 90 degree swing cloth mud; Also can be installed in the midpoint that the rectangle steam heat-exchanging applies the long edge of mud plate, cloth mud device assembly forms semicircle mud film around main shaft 180 degree swings.

The sludge out pipe of this drying machine can adopt multiple modes such as spiral conveyer or other, to improve mud extraction efficient.

This drying machine applies mud on the plate face of mud plate innner and outer at steam heat-exchanging and is extruded, applies when being film morphology and sticking on the outer plate surface and closely contact the evaporation dryings of also absorbing heat in a large number with the plate face, the mud film will constantly shrink, chap, reduction along with water ratio, adhesive capacity between itself and plate face is more and more littler, when being dried to adhesive power and can not supporting himself weight, major part promptly comes off voluntarily, falls the mud collection area that into is arranged in the below.If any residual mud, then will it be removed to mud collection area by plate face eradicator.

Principle of work of the present utility model is:

The mud that goes out the water ratio about 60% of hopper dredger from upper high-temperature drier pressurizes through sludge pump, after the divider uniformly distributing, parallel advances the mud pipe to each segmental cloth mud device mud inlet and enter each fan-shaped cloth mud chamber through many.

Each fan-shaped cloth mud chamber fills it up with that sludge pump and divider quit work behind the mud, drive-motor is started working, and drive the master arm rotation of each fan-shaped cloth mud device by the chain drive main shaft, at first close the mud inlet of fan-shaped cloth mud device, master arm continues to rotate under the drive of main shaft then, this moment fan-shaped cloth mud device passive arm transfixion under the effect of damping wheel (or leaf spring), the fan-shaped angle of fan-shaped cloth mud device diminishes gradually, cloth mud chamber volume reduces, and indoor mud is extruded.

At this moment, the master arm that main shaft drives each fan-shaped cloth mud device continues rotation, and cloth mud chamber has been full of mud and can not be extruded again, and master arm will drive passive arm and rotate together this moment.Being installed in desilt brush on the passive arm will cover and go up the dried slice that one-period fails to come off voluntarily on the mud plate and clean down; The indoor new mud of cloth mud will be extruded sticking staying on the cloth mud chamber sidewall (promptly covering the mud plate), and covered the new mud film of formation on the mud plate by the elasticity cleaning shoe trowelling on the cloth mud device.

Main shaft drives each fan-shaped cloth mud device and rotates a circle, the unidirectional rotation dowel hole that is fixed on the passive arm upper end (does not illustrate, be equivalent to limit switch) cross the steady brace that is packed on the drying machine framework after, main shaft stops the rotation, and an of short duration time-delay back main shaft reverse rotation is arranged, at this moment, the passive arm pin that is positioned stops static, master arm is with main axis rotation, and the fan-shaped angle in cloth mud chamber is widened, until main shaft stops the rotation after opening mud inlet.

Sludge pump and divider are started working, and repeat said process.

The dried slice that above-mentioned a plurality of cycle produces drops in the sludge hopper of drying machine below by gravity, is sent by spiral conveyer (sludge out pipe).

Claims

1. wet sludge at low temperature steam dryer, comprise seal case, main shaft, drive-motor, advance the mud pipe, the collection hopper dredger, steam inlet tube, steam goes out pipe, steam heat-exchanging applies mud plate and cloth mud device assembly, be provided with the collection hopper dredger in the seal case bottom, in seal case, be horizontally installed with main shaft, this main shaft is driven by drive-motor, the uniform steam heat-exchanging that is fixed with of parallel interval applies the mud plate array on the intravital main shaft of watertight chest is axial, the deposited mud plate array of this steam heat-exchanging is communicated with the steam inlet tube on its top and the steam of bottom goes out pipe, the steam inlet tube on top applies the mud plate with each steam heat-exchanging respectively and is communicated with, the main shaft diameter of applying between the mud plate at adjacent steam heat-exchanging upwards all is fixed with cloth mud device assembly, it is characterized in that:

2. wet sludge at low temperature steam dryer according to claim 1 is characterized in that: on both sides, the master arm outside cleaning shoe is installed all, on both sides, the passive arm outside hairbrush row is installed.

3. wet sludge at low temperature steam dryer according to claim 1, it is characterized in that: the end, muddy and slippery road of advancing in master arm one side installs a spring, the other end of this spring is packed on the main shaft, is equipped with one group in the outside, upper end of passive arm and can applies the damping wheel that guiding slides on the mud plate at adjacent steam heat-exchanging.

4. wet sludge at low temperature steam dryer according to claim 1, it is characterized in that: the end, muddy and slippery road of advancing of described master arm one side installs a wireline, the other end of wireline and a leaf spring install, and this leaf spring and main drive shaft are an angle and are packed on the main shaft, and rope capacity is adjustable.

5. wet sludge at low temperature steam dryer according to claim 1 is characterized in that: on the seal case advance the mud pipe by one advance mud take over the deposited mud plate of adjacent steam heat-exchanging between cloth mud chamber be communicated with.