CN206570190U - A kind of equipment for sludge carbonization technique - Google Patents

Abstract

The utility model is related to city and has stable political situation that there is provided a kind of equipment for sludge carbonization technique for industrial solid wastes process field.The equipment includes the reactor, decompressor and buffering storage container being sequentially connected along material circulating direction, heat reclamation device is in series between reactor and decompressor, flash distillation is occurred without for being lowered so that material to enter after the decompressor temperature of material；Decompressor is not provided with flash tank.Because of pressure-reducing valve and flash distillation energy loss will not occur for the equipment, thus the efficiency of recuperation of heat is very high.Before material enters decompressor, first material is passed through in heat reclamation device, the energy that material is carried reclaimed, so as to avoid the waste of energy.In addition, after heat reclamation device, the temperature of material is lowered so that it occurs without flash distillation after entering the decompressor, so that the equipment of the present utility model for sludge carbonization technique need not set flash tank, the simplification of device structure is realized, and saves the space of factory.

Description

A kind of equipment for sludge carbonization technique

Technical field

The utility model is related to city and had stable political situation industrial solid wastes process field, more particularly to a kind of is used for sludge carbonization technique Equipment.

Background technology

With the increase of urban population, industrialization, city stain disease treatment plant set up, and sludge yield gradually increases, Focus of the Treatment of Sludge into environment.The techniques such as drying, landfill, the compost of original technology are simply simply located to sludge How reason, the processing of sludge realizes " minimizing ", " innoxious ", " recycling " in the focus as many enterprises pay attentions Focus.Sludge carbonization technology is that sludge is carried out to " dry to slip " under conditions of anaerobic or micro- oxygen, splits the cell in biochemical sludge Solution, water release therein is come out, while remaining the process of carbonaceous in sludge to greatest extent again.The advantage of sludge carbonization It is, sludge carbonization is to be deviate from the moisture in sludge by cracking mode, and energy resource consumption is few, the carbon content in resultant product Height, caloric value is big, and other techniques are largely that the moisture in sludge is removed by way of heating and evaporating, therefore energy consumption Greatly.Sludge volume after carbonization is small, without toxic gas etc. in sludge, does not result in secondary pollution.Also, sludge carbonization technology is not It is only capable of effectively handling sludge, moreover it is possible to be made into the charcoal with high added value.It will not both be damaged so sludge carbonization is one kind The economical treatment technology of bad environment and energy resource reusing.

Sludge carbonization technique is generally carried out under HTHP condition of work.Specifically, sludge carries out heat in the reactor Conditioning and hydrothermal carbonization, and form mud by solid state transformed for liquid.Mud needs follow-up production unit to carry out muddy water point From., it is necessary to which the material of the material outlet discharge from reactor is depressurized before mud carries out mud-water separation, and will decompression Material input buffer storage container afterwards is stored.

Domestic at present to coordinate flash tank to be depressurized frequently with pressure-reducing valve, i.e., sludge is in high-temperature and high-pressure conditions reaction and liquid After change, mud is discharged into flash tank through pressure-reducing valve, and using the pressure differential in reactor and flash tank, mud is discharged into flash distillation Rapid boiling vaporizes and carries out two-phase laminated flow in tank.Wherein, the effect of flash tank is to provide mud rapid vaporization and gas-liquid separation Required space.It can be seen that flash distillation can cause the temperature of mud to reduce, so as to cause the waste of energy.Also, flash tank body Product is larger, takes larger space, and the structure for being unfavorable for sludge carbonization technique equipment simplifies.

Utility model content

The utility model is intended at least solve one of technical problem present in prior art or correlation technique.

One of purpose of the present utility model is：A kind of equipment for sludge carbonization technique is provided, existing skill is solved When coordinating flash tank using pressure-reducing valve to be depressurized in art, the problem of causing energy dissipation and big equipment occupation space.

In order to realize the purpose, the utility model provides a kind of equipment for sludge carbonization technique, including along thing Reactor, decompressor and buffering storage container that material circulating direction is sequentially connected, the reactor and the decompressor it Between be in series with heat reclamation device, for by the temperature of material be lowered so that material enter the decompressor after occur without sudden strain of a muscle Steam；The decompressor is not provided with flash tank.

The technical solution of the utility model has advantages below：Equipment of the present utility model for sludge carbonization technique, Will not occur energy loss because of pressure-reducing valve and flash distillation, thus the efficiency of recuperation of heat is very high.Material enter decompressor it Before, first material is passed through in heat reclamation device, the energy that material is carried reclaimed, so as to avoid the waste of energy.In addition, After heat reclamation device, the temperature of material is lowered, and decompressor will not both have been caused to damage, caused it enters described again Flash distillation is occurred without after decompressor, so that the equipment of the present utility model for sludge carbonization technique need not set flash tank, The simplification of device structure is realized, and saves the space of factory.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the annexation schematic diagram of the equipment for sludge carbonization technique of embodiment；

Fig. 2 is the annexation schematic diagram of the heat-exchange device for sludge carbonization technique of the utility model embodiment；

Fig. 3 and Fig. 4 are the structural representations of the front heat exchanger of the utility model embodiment；

Fig. 5 and Fig. 6 are the structural representations of the rear heat exchange of the utility model embodiment；

In figure：1st, front heat exchanger；2nd, rear heat exchange；3rd, first switch valve；4th, second switch valve；5th, the 3rd switch Valve；6th, the 4th switch valve；7th, flow control valve；8th, exhaust regulating valve；9th, medium heat exchanger；10th, reactor；11st, conduction oil Stove；12nd, pump；13rd, flow of media pipeline；14th, material conveying pipe；15th, decompressor；16th, the first triple valve；17th, the 2nd 3 Port valve；18th, the first pipeline；19th, the second pipeline；20th, the 3rd pipeline；21st, the 4th pipeline；22nd, buffer；23rd, the 5th open Close valve.

Embodiment

In order to be more clearly understood that above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the accompanying drawings and tool The utility model is further described in detail body embodiment.It should be noted that in the case where not conflicting, this Shen The feature in embodiment and embodiment please can be mutually combined.

, it is necessary to explanation in description of the present utility model, term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ", The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicate Or imply that the device or element of meaning must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that For to limitation of the present utility model.In addition, term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that Indicate or imply relative importance.

, it is necessary to illustrate in description of the present utility model, unless otherwise clearly defined and limited, term " phase Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary.For this For the those of ordinary skill in field, concrete meaning of the above-mentioned term in the utility model can be understood with concrete condition.

Without loss of generality, the present embodiment is used for sludge carbonization technique only by taking the carbonization technique of sludge as an example to the application Equipment is illustrated.It should be appreciated that this is used for the equipment of sludge carbonization technique, except the carbonization technique for sludge, together Sample goes in other similar carbonization techniques with material.Also, the equipment of the present embodiment is used for the carbonization of sludge When in technique, what material therein referred to is exactly sludge, i.e. also, from reactor come out after liquid material mud.

Fig. 1, the equipment for sludge carbonization technique of the present embodiment are referred to, including is connected successively along material circulating direction Reactor 10, decompressor 15 and the buffering storage container connect, is in series between the reactor 10 and the decompressor 15 Heat reclamation device, flash distillation is occurred without for being lowered so that material to enter after the decompressor 15 temperature of material；Institute State decompressor 15 and be not provided with flash tank.

The equipment for sludge carbonization technique of the present embodiment, will not occur energy loss because of pressure-reducing valve and flash distillation, Thus the efficiency of recuperation of heat is very high.Wherein, before material enters decompressor 15, first material is passed through in heat reclamation device, The energy that material is carried is reclaimed, so as to avoid the waste of energy.The purposes of the energy of recovery is not limited, and both can be used for pair Sludge before into reactor 10 is preheated, and can be used for affiliated facility heat supply in winter of factory etc..In addition, by After heat reclamation device, the temperature of material namely mud is lowered, and decompressor 15 will not both have been caused to damage, again it entered Enter the decompressor 15 and occur without flash distillation afterwards, decompressor 15 is entered back into for example, temperature of charge is down to after 60~70 DEG C. So as to which the equipment of the present utility model for sludge carbonization technique need not set flash tank, the simplification of device structure is realized, and save The space of factory of province.

Please with further reference to Fig. 1, the material inlet of reactor 10 is connected with front heat exchanger 1, and the material of reactor 10 goes out Mouth is connected with rear heat exchange 2.Wherein, the purpose for setting front heat exchanger 1 is to give material (namely sludge) preheating, hot after setting The main purpose of exchanger 2 is to receive material (namely mud) and reclaim heat energy.Wherein, rear heat exchange 2 can also be by heat Pass to front heat exchanger 1 to preheat for sludge, specifically will be described in detail later.

For the further structure for simplifying the equipment for being used for sludge carbonization technique in the present embodiment, preferably heat reclamation device is adopted With above-mentioned rear heat exchange 2, device is set to be used for recuperation of heat without extra.In the case of this kind, by rear heat exchange 2 it Afterwards, the temperature of material must be reduced to the follow-up acceptable level of decompressor 15, to ensure the thing into decompressor 15 Material occurs without flass.Of course it is not excluded on the basis of rear heat exchange 2 is provided with, extra setting heat reclamation device Situation.

Decompressor 15 is preferably but necessarily using frequency conversion depressurizing pump.Pass through the regulation to frequency conversion depressurizing pump, Ke Yishi The material output of existing different pressures, so as to carry out Stress control while decompression.And, it is only necessary to by frequency conversion depressurizing pump Outlet pressure, it is possible to which the material namely material after decrease temperature and pressure are delivered to the buffer storage container of plant area optional position, nothing Need again by other pumping equipments.Further, since the material only after fully heat conditioning and hydrothermal carbonization could pass through Decompressor 15 delivers to subsequent processing units, and by controlling the rotating speed of frequency conversion depressurizing pump in the present embodiment, can control whole The processed in units yield of device, and then control the balance between the yield and quality of whole equipment.

In the present embodiment, preferably depressurizing pump is the multi-stage screw pump reverse-engineered, the multi-stage screw pump and conventional press pump Flow direction design it is opposite.Specifically, traditional pressurization screw pump, material inlet is arranged on the top of pump case, and material outlet It is arranged on the side of pump case；And the multi-stage screw pump of the present embodiment, it uses reverse engineer, including pump case, material inlet For high pressure end, and the material inlet is arranged on the side of the pump case, and material outlet is low-pressure end, and the material outlet The top of the pump case is arranged on, and the direction of rotation of this kind of multi-stage screw pump is opposite with common pressurization screw pump.This Outside, this kind of multi-stage screw pump, it can carry out VFC by configuring frequency-variable controller and braking resistor, and then realization is pumped out The regulation of mouth pressure and flow.

In Fig. 1, it is parallel between the material outlet of rear heat exchange 2 and the buffer-stored container and selects the first of a conducting A decompressor 15 is respectively connected with the pipeline 19 of pipeline 18 and second, the pipeline 19 of the first pipeline 18 and second.This Place sets two decompressors 15 in parallel, so that one normal standby using one, to prevent the appearance of emergency case.When So, a decompressor 15 can also be only set.

Further, be provided with the 5th switch valve 23 in Fig. 1 between reactor 10 and heat reclamation device (can mention hereinafter First switch valve, second switch valve, the application of the 3rd switch valve and the 4th switch valve), and the 5th switch valve 23 is described Equipment is turned on when working, and is disconnected in the device standby.The public outlet of the material of first pipeline, 18 and second pipeline 19 The material inlet of the heat reclamation device is accessed in end by the 3rd pipeline 20 so that the heat reclamation device and decompressor 15 it Between formed material first circulation loop；And the public port of export accesses the buffer-stored container by the 4th pipeline 21； 3rd pipeline 20 and the 4th pipeline 21 select a conducting.

In the present embodiment, a conducting is selected in order to realize the first pipeline 18 and the second pipeline 19, in the first pipeline 18 and The common inlet end of two pipelines 19 is connected with the first triple valve 16, wherein, the first triple valve 16 specifically uses two-position three way The form of valve.Similarly, in order to realize the conducting of selecting of the 3rd pipeline 20 and the 4th pipeline 21, second triple valve 17 is set, And cause the public port of export of the first pipeline 18 and the second pipeline 19 to connect the entrance of the second triple valve 17, the 3rd pipeline 20 The first outlet of second triple valve 17 is connected, the 4th pipeline 21 connects the second outlet of second triple valve 17. Certainly, select a conducting here for realize pipeline, in addition to using triple valve, can also using electrically-controlled valve, pneumatic operated valve etc., Or also control manually.Equally, the 5th switch valve 23 is preferably necessarily still operated pneumatic valve.

When the equipment for sludge carbonization technique of the present embodiment is normally run, the 5th switch valve 23 is opened, the 3rd pipe Road 20 is disconnected and the 4th pipeline 21 is turned on, after decompressor 15 is depressurized, and mud only leaves work overbottom pressure and is transported to buffering storage Storage 22.When for sludge carbonization technique under standby mode, to prevent mud from settling, the 5th switch valve 23 disconnects, 4th pipeline 21 is disconnected and the 3rd pipeline 20 is turned on, and mud is re-entered into heat and returned after decompressor 15 pressurizes in the case of this kind In receiving apparatus, so as to form self-loopa between first circulation loop.

The equipment for sludge carbonization technique of the present embodiment, according to technique productions and maintenance the need for, it is possible to achieve just Free switching between regular operation mode and standby mode, it is ensured that mud is not settled in a device.

Also, by it was verified that the equipment for sludge carbonization technique of the present embodiment, decompressor 15 is handed over rear heat Parallel operation 2 is used in combination, and contrast tradition uses the situation of pressure-reducing valve and flash tank, and its energy loss can reduce more than 50%.

On this basis, Fig. 2 is referred to, the quantity of the front heat exchanger 1 is multiple and series connection forms front heat exchanger Group, and/or, the quantity of the rear heat exchange 2 is multiple and series connection forms rear heat exchange group.

The equipment for sludge carbonization technique of the present embodiment, between multiple front heat exchangers or multiple rear heat exchanges Multistage heat exchange is formed between device, so as to carry out classification heat exchange to material so that the heat exchange of material is more abundant, more equal It is even, and heat exchange efficiency can be improved to realize the purpose of energy-conservation.

Wherein, the multistage front heat exchanger in front heat exchanger group, its role is to the material for entering reactor 10 I.e. sludge is preheated, so that the sludge entered in reactor 10 reaches design temperature, design temperature herein is general But it is not limited to 50 DEG C~80 DEG C.Multistage rear heat exchange in rear heat exchange group, effect is to defeated from reactor 10 The material namely mud gone out is cooled, so that can be input to follow-up decompression from the mud after the output of rear heat exchange group In device.Obvious plural serial stage heat exchanger (in the present embodiment, in the case of restriction, what heat exchanger was referred both to It is front heat exchanger and rear heat exchange), it significantly more efficient can realize object above.

When being applied to the heat exchange of sludge and mud due to the heat exchanger of prior art, it easily occurs, and material is viscous to be showed As.Also, there is the shortcomings of poor fluidity, heat exchange efficiency are low, heat-exchange periodic is long.Therefore the present embodiment proposes a kind of new preceding heat Exchanger 1 and rear heat exchange 2, describe front heat exchanger 1 and rear heat exchange 2 separately below.

The front heat exchanger 1 of the present embodiment, refers to Fig. 3 and Fig. 4, including flow of media pipeline 13 and is arranged on described Material conveying pipe 14 in flow of media pipeline 13.Wherein, heat exchange medium is passed into the medium circulation tube by N1 mouthfuls Space between road 13 and material conveying pipe 14, afterwards from N2 mouthfuls of outflows；Material is passed into material conveying pipe by N3 mouthfuls In 14, so that fully being contacted between heat exchange medium and material, afterwards from N4 mouthfuls of discharges.

It is preferred that flow of media pipeline 13 and material conveying pipe 14 are rectilinear duct, so as to reduce inner-walls of duct to material With the resistance of heat exchange medium.Also, it is preferred that but necessarily, flow of media pipeline 13 and material conveying pipe 14, its is transversal Face is rounded, and material uses 316L stainless steels.

As can be known from Fig. 4, the series with front heat exchanger 1 is corresponding, is set herein in a flow of media pipeline 13 Material conveying pipe 14 quantity be three.Because the quantity of material conveying pipe 14 in flow of media pipeline 13 is more, then Material conveying capacity is weaker, but the thermocontact area between material and heat exchange medium is bigger.The present embodiment is for sludge Feature, selection sets three material conveying pipes 14 in flow of media pipeline 13, between heat exchange efficiency and heat transfer effect Seek a rational balance.Certainly, the quantity of material conveying pipe 14 is not limited by accompanying drawing 4.

Above-mentioned front heat exchanger 1 is horizontally disposed, namely flow of media pipeline 13 and material conveying pipe 14 the equal position of axis In on horizontal plane, so as to greatly reduce the resistance of material conveying.Also, as can be known from Fig. 2, the equal position of multistage front heat exchanger In in same level, space is saved in this kind distribution, and can further facilitate the pumping of material.

The rear heat exchange 2 of the present embodiment, refers to Fig. 5 and Fig. 6, also including flow of media pipeline 13 and is arranged on institute State the material conveying pipe 14 in Outer Tube.

It is with the above-mentioned difference of front heat exchanger 1, the rear heat exchange 2 of the present embodiment, its flow of media pipeline 13 In be provided with seven material conveying pipes 14.Also, rear heat exchange 2 is placed vertically, hence for single rear heat exchange 2 Speech, mud is inputted from the top of rear heat exchange 2, and is exported from the bottom of rear heat exchange 2；And heat exchange medium is from rear heat exchange The bottom input of device 2, is exported from the top of rear heat exchange 2, abundant to ensure to exchange heat between mud and heat exchange medium.

Front heat exchanger group is given in Fig. 2 including three-level front heat exchanger and rear heat exchange group includes heat friendship after six grades The situation of parallel operation.It should be appreciated that Fig. 2 does not constitute the limitation to the present embodiment, except front heat exchanger group and rear heat exchange Device group is only included beyond the situation of one-level heat exchanger, and the front heat exchanger group and rear heat exchange group of other any number of stages are equal It is included in the covering scope of the present embodiment.

The comprehensive Multiple factors such as pre-heat effect and the pre- thermal efficiency, the preferred front heat exchanger group of the present embodiment includes heat before three platforms Exchanger 1, and it is followed successively by heat exchange before one-level front heat exchanger, two grades of front heat exchangers and three-level along material circulating direction Device.

Wherein, " material circulating direction " refers to direction from left to right in accompanying drawing 2, so that material is finally passed into In reactor 10.Due to one-level front heat exchanger, two grades of front heat exchangers and three-level front heat exchanger to sludge carry out be classified it is pre- Heat, so that the sludge temperature in one-level front heat exchanger, two grades of front heat exchangers and three-level front heat exchanger gradually rises, finally The sludge exported from three-level front heat exchanger reaches design temperature.

Please with further reference to Fig. 2, first flowed into for heat exchange medium is provided with three-level front heat exchanger side and is entered Mouthful, the first outlet flowed out for heat exchange medium is provided with the one-level front heat exchanger side.So as to heat exchange medium After first entrance entrance, three-level front heat exchanger, two grades of front heat exchangers and one-level front heat exchanger are sequentially passed through, finally Rear heat exchange group is flowed back to from the first outlet of one-level front heat exchanger side.In the case of this kind, heat exchange medium enters three-level Temperature highest during front heat exchanger, temperature is gradually reduced after two grades of front heat exchangers and one-level front heat exchanger, so that full The requirement that each front heat exchanger 1 of foot is preheated to sludge.

From the foregoing, it will be observed that in front heat exchanger group, sludge is to circulate from left to right, and heat exchange medium is to flow from right to left It is logical, namely material circulating direction and heat exchange medium circulating direction it is opposite so that material and heat exchange medium heat exchange are abundant.

Assuming that the material of input front heat exchanger group, its initial temperature is 10 DEG C~30 DEG C, eventually off front heat exchanger The temperature of charge of group needs to reach 50 DEG C~80 DEG C, then when the quantity of front heat exchanger 1 is three, each front heat exchanger 1 Only need to heat up 15 DEG C or so to material.

The rear heat exchange group of the present embodiment, the rear heat that its each rear heat exchange group includes six series connection respectively changes exchange Device 2, is followed successively by after one-level rear heat exchange, two grades of rear heat exchanges, three-level rear heat exchange, level Four along material circulating direction Heat exchanger, Pyatyi rear heat exchange and six grades of rear heat exchanges.

Similarly, " material circulating direction " refers to direction from left to right in accompanying drawing 2 herein, so that from reactor 10 The material of output is entered in rear heat exchange group, and is input to by rear heat exchange group in decompressor.After one-level After heat exchanger, two grades of rear heat exchanges, three-level rear heat exchange, level Four rear heat exchange, Pyatyi rear heat exchange and six grades Heat exchanger carries out classification cooling to sludge, thus one-level rear heat exchange, two grades of rear heat exchanges, three-level rear heat exchange, Mud temperature in level Four rear heat exchange, Pyatyi rear heat exchange and six grades of rear heat exchanges is gradually reduced, finally from six grades The mud exported in rear heat exchange reaches design temperature.

Please with further reference to Fig. 2, the flowed into for heat exchange medium is provided with six grades of rear heat exchange sides Two entrances, the one-level rear heat exchange side is provided with the second outlet flowed out for heat exchange medium.So as to which heat exchange is situated between Matter sequentially passes through six grades of rear heat exchanges, Pyatyi rear heat exchange, level Four rear heat exchange, three after second entrance entrance Level rear heat exchange, two grades of rear heat exchanges and one-level rear heat exchange, finally second from one-level rear heat exchange side go out Mouth flows back to front heat exchanger group.In the case of this kind, temperature highest when heat exchange medium enters six grades of rear heat exchanges, by follow-up Temperature is gradually reduced after rear heat exchange 2, so as to meet the requirement cooled in each rear heat exchange 2 to mud.

It should be noted that second entrance can also be arranged on after six grades except being arranged on six grades of rear heat exchange sides Between heat exchanger and Pyatyi rear heat exchange, and heat exchange medium enters Pyatyi rear heat exchange by the second entrance, Level Four rear heat exchange, three-level rear heat exchange, two grades of rear heat exchanges and one-level rear heat exchange are sequentially entered afterwards.This kind In the case of, preceding Pyatyi rear heat exchange can connect between front heat exchanger group and form closed-loop path, and heat exchange after six grades The heat exchange mediums different with closed-loop path can be used in device.It is preferred that being used as heat exchange using water in six grades of rear heat exchanges Medium, so that it is thorough to cool in six grades of rear heat exchanges, sets requirement is met from the material of six grades of rear heat exchange outputs.

Similarly, in rear heat exchange group, rear heat exchange 2 of the material on the right side of the flow direction of rear heat exchange 2 in left side, heat is handed over Rear heat exchange 2 of the medium on the left of the flow direction of rear heat exchange 2 on right side is changed, is for for whole rear heat exchange group, Material circulating direction and heat exchange medium circulating direction are opposite so that material and heat exchange medium heat exchange are abundant.

Wherein, according to from the material outlet of reactor 10 at the material outlet of temperature of charge and six grades of rear heat exchanges Difference between temperature of charge, selection sets six grades of rear heat exchanges.It should be appreciated that rear heat exchange 2 is not limited to six Level.

For environmental protection and energy saving purpose, the first entrance connects the second outlet by the 5th pipeline, and described first goes out The mouth connection second entrance so that heat exchange medium is formed between the front heat exchanger group and the rear heat exchange group Second circulation loop.So as to after heat exchange medium is preheated in front heat exchanger group to sludge, obtain the heat of temperature reduction Exchange media, the heat exchange medium for afterwards reducing the temperature is passed into rear heat exchange group to cool to mud.With this Meanwhile, the heat exchange medium in rear heat exchange group reclaims the heat energy of mud, obtains the elevated heat exchange medium of temperature.Afterwards again Heat exchange medium after the temperature is raised is passed into front heat exchanger group and sludge is preheated, and so moves in circles.

Wherein, why limit between first entrance and second outlet and to be connected by the 5th pipeline, and to first outlet and Connected mode between second entrance is not limited, and is primarily due to subsequently need to further describe the 5th pipeline.

Also, the heat energy that rear heat exchange group is reclaimed can be also used for the attached of factory except being preheated to sludge Facility heat supply in winter, to make full use of remaining heat energy, is realized energy-efficient.

In order to tackle the shortage of heat reclaimed in rear heat exchange group so that the sludge in front heat exchanger group is preheated to and set The situation of constant temperature degree, between two grades of front heat exchangers and three-level front heat exchanger, is set close to two grades of front heat exchangers There is the 3rd entrance circulated for heat exchange medium, the three-level front heat exchanger is provided with the 3rd outlet.Certainly, the 3rd Entrance can be arranged directly on two grades of front heat exchanger bodies, and the 3rd outlet can also be set directly at three-stage heat exchanger sheet On body.

3rd entrance passes through the 6th pipeline and connects the second outlet so that the one-level front heat exchanger, two grades Between front heat exchanger and the rear heat exchange group formed heat exchange medium the 3rd circulation loop, and the 5th pipeline and 6th pipeline selects a conducting；3rd outlet connects the first entrance by the 7th pipeline so that before the three-level 4th circulation loop of heat exchanger itself formation heat exchange medium.

When the heat reclaimed in rear heat exchange group is enough to be fully warmed-up the sludge in front heat exchanger group, the 5th pipe Road is turned on and the 6th pipeline disconnects, and the heat exchange medium flowed out from rear heat exchange group can enter three-level front heat exchanger, now Heat exchange medium is circulated in whole front heat exchanger group and rear heat exchange group connect the second circulation loop to be formed.

When the shortage of heat reclaimed in rear heat exchange group to the sludge in front heat exchanger group to be fully warmed-up, now 6th pipeline turns on the 5th pipeline and disconnected, and the heat exchange medium flowed out from rear heat exchange group is directly entered heat exchange before two grades Device, then flows into one-level front heat exchanger.And for the higher three-level front heat exchanger of temperature requirement, it is recycled back to by the 4th Heated on road.

It follows that during the 6th pipeline conducting, the 4th circulation loop is connected；During the 5th pipeline conducting, 4th circulation loop disconnects.

Fig. 2 is referred to, on the 5th pipeline the 3rd switch valve 5 can be set (subsequently to have and open first switch valve 3 and second Close the description of valve 4), so as to control the break-make of the 5th pipeline by the break-make of the 3rd switch valve 5.Also, the break-make of the 6th pipeline It can also be realized by valve and (valve being arranged on the 6th pipeline not drawn in accompanying drawing 2).When the 6th pipeline is turned on, in order to anti- Only the heat exchange medium in the 4th circulation loop is flowed into two grades of front heat exchangers, is set between the 3rd entrance and the 3rd outlet The 4th switch valve 6 is equipped with, so that when the 5th pipeline disconnects the conducting of the 6th pipeline, the 4th switch valve 6 of control disconnects；When the 5th pipe When road turns on the disconnection of the 6th pipeline, the 4th switch valve 6 of control is turned on.

In order that obtaining the 4th circulation loop has heating effect, the 7th pipeline can be linked into medium heat exchanger 9, And the medium heat exchanger 9 is by accessing high-temperature heat exchange tube road to the heat-exchanging medium to heat in the 7th pipeline.Jie Mass heat transfer device 9 is different from above-mentioned front heat exchanger 1 and rear heat exchange 2, and it acts on the heat friendship being that in the 7th pipeline Change medium heat temperature raising.

As can be known from Fig. 2, in order to be heated to the material in reactor 10, reactor 10 heating medium inlet and Heat power supply device is provided between Crude product input.Specifically, the heating medium inlet connects the outlet of heat power supply device, described Crude product input connects the refluxing opening of the heat power supply device by the 8th pipeline, and is filled in the reactor 10 and the thermal source Circulating-heating loop is formed between putting.

In the present embodiment, preferably high-temperature heat exchange tube road and the 8th pipeline are in parallel, so that high-temperature heat exchange tube road is used to reaction The heat power supply device that device 10 is heated sets thermal source as thermal source without extra, to reduce the whole equipment for sludge carbonization technique Floor space.

In the present embodiment, heat source preferred device is heat-conducting oil furnace 11, so as to be entered from heat-conducting oil furnace 11 in reactor 10 Heating medium be conduction oil.Also, it is preferred that but necessarily the medium in front heat exchanger group and rear heat exchange group is also Conduction oil.Now, conduction oil and conduction oil are carried out in the 7th pipeline and the medium heat exchanger 9 of high-temperature heat exchange tube road access Between heat exchange.

, can be in high temperature in order to which the conduction oil flow in the 8th pipeline and the high-temperature heat exchange tube road is adjusted Flow control valve 7 is set respectively on heat exchange pipeline and the 8th pipeline.It is preferred that the stream on high-temperature heat exchange tube road and the 8th pipeline Adjustable valve 7 is related, so that when the aperture of flow control valve 7 reduces on high-temperature heat exchange tube road, the Flow-rate adjustment on the 8th pipeline The aperture of valve 7 increases；Conversely, when the aperture of flow control valve 7 increases on high-temperature heat exchange tube road, the flow control valve on the 8th pipeline 7 apertures reduce.

In addition, it can be found that each rear heat exchange 2 is correspondingly arranged on an exhaust regulating valve 8, the row from Fig. 2 Gas regulating valve 8 can be used for discharging the gas in heat exchange medium.Also, pump 12 is provided with the loop of heat exchange medium, For pumping heat exchange medium.

It is emphasized that on the basis of heat exchanger one heat exchanger group of formation of multiple series connection, can also set Put in parallel between multiple heat exchanger groups, and multiple heat exchanger groups.For example in Fig. 2, front heat exchanger group and rear heat in parallel The quantity of exchanger group is two, so that two heat exchanger groups can be with alternation.Certainly, accompanying drawing 2 is not constituted to this reality Apply the limitation of example, the equipment for sludge carbonization technique of the present embodiment, the number of its front heat exchanger group and rear heat exchange group Amount can be other Arbitrary Digits.

Specifically, when one of heat exchanger group carries out sufficient heat exchange to material therein, other heat exchangers The material being completely heat exchanged can be delivered in the follow up device of sludge hydro-thermal carbonization system by group so that material can be put down It is steady slow by each group heat exchanger group, handed over ensureing that the heat exchange medium in material and heat exchanger group carries out fully heat Change.Further, since alternation between multiple heat exchanger groups, thereby may be ensured that heat-exchange device work is carried out continuously, with Improve the heat exchange efficiency of the equipment for sludge carbonization technique.

Also, when the equipment work for sludge carbonization technique of the present embodiment is carried out continuously, it can also improve pre- Heat recovery rate, realizes the effect of energy-conserving and environment-protective.

Wherein, when the quantity of front heat exchanger group is multiple, the sludge for entering reactor 10 can be carried out fully pre- Heat, and ensure the heat exchange efficiency of the equipment for sludge carbonization technique., can be right when the quantity of rear heat exchange group is multiple The mud exported from reactor 10 is fully cooled, and ensures the heat exchange efficiency of the equipment for sludge carbonization technique.

And the equipment for sludge carbonization technique of the present embodiment, both including front heat exchanger group or rear heat exchange group Quantity is multiple situations, in addition to the quantity of front heat exchanger group and rear heat exchange group is multiple situations.It is preferred that before The quantity of heat exchanger group and rear heat exchange group is multiple, so as to have beneficial effect mentioned above concurrently.

In the present embodiment, in order to realize the alternation between multiple front heat exchanger groups, preferably but necessarily two The material inlet of the front heat exchanger group connects a first switch valve 3 respectively.And it is possible to be controlled using controller above-mentioned The break-make of first switch valve 3.So as to which when the first switch valve 3 that front heat exchanger group is connected is turned on, sludge can be in the preceding warm Circulate, and be delivered in subsequent reactor 10 in exchanger group；When the first switch valve 3 that front heat exchanger group is connected disconnects, Sludge retention is heated in the front heat exchanger group, until its preheating is completed.

Certainly, in order to realize the alternation between multiple front heat exchanger groups, except controlling thing by first switch valve 3 Outside the circulation of material, in addition it is also necessary to set second switch valve 4 to control the circulation of heat exchange medium.

As can be known from Fig. 2, in the present embodiment, one is connected in the first outlet position of two front heat exchanger groups Second switch valve 4, so that when the corresponding second switch valve 4 of front heat exchanger group is turned on, heat exchange medium can be handed in the preceding heat Parallel operation group circulates.

For some front heat exchanger group, if first switch valve 3 disconnects, the front heat exchanger group is now turned on Corresponding second switch valve 4, so that the heat exchange medium of circulation is fully pre- to the sludge progress in the front heat exchanger group Heat., whereas if the first switch valve 3 of some front heat exchanger group is turned on, illustrate that the sludge being located in front heat exchanger group is pre- It is hot abundant, it can now disconnect the corresponding second switch valve 4 of the front heat exchanger group.

Similarly, in order to realize the alternation between multiple rear heat exchange groups, it again may be by setting first switch The control material of valve 3 circulates, and by setting second switch valve 4 to control the circulation of heat exchange medium.Wherein, rear heat exchange group First switch valve 3 and second switch valve 4 between break-make equally exist certain contact, to realize multiple rear heat exchange groups Work alternating.

As can be known from Fig. 2, the second switch valve 4 of rear heat exchange group is arranged at the second entrance of heat exchange medium, when Second switch valve 4 can also be so arranged at the second outlet of heat exchange medium to either other positions, as long as can control The circulation of heat exchange medium in rear heat exchange group.Similarly, the first switch valve 3 of rear heat exchange group, and preceding heat The first switch valve 3 of exchanger group and the set location of second switch valve 4 are not limited by the accompanying figures, as long as material can be realized Or the control of heat exchange medium.

And it should be noted that when the quantity of heat exchanger group is other quantity beyond two, it can also pass through First switch valve 3 and second switch valve 4 realize alternation, principle phase when its principle and heat exchanger group quantity are two Together, here is omitted.

Wherein, preferably every the logical of the corresponding first switch valve 3 of 5~8 minutes switching heat exchanger groups and second switch valve 4 It is disconnected, so that the alternating between multiple control heat exchanger groups.Also, each heat exchanger of correspondence can set a monitoring respectively Instrument, the working condition for monitoring each heat exchanger, and control this to be used for setting for sludge carbonization technique based on monitored results It is standby.

In accompanying drawing 2, in order to distinguish the transfer pipeline of heat exchange medium, heating medium and material, the second of heat exchange medium Circulation loop, the 3rd circulation loop and the 4th circulation loop are represented by dashed line, and circulating-heating loop is represented with dotted line, material Transfer pipeline is represented with realization.

The type of valve mentioned above is unrestricted, and it can be any valve disclosed in the prior art.

Embodiment of above is merely to illustrate the utility model, rather than to limitation of the present utility model.Although with reference to implementation The utility model is described in detail example, it will be understood by those within the art that, to technology of the present utility model Scheme carries out various combinations, modification or equivalent substitution, all should without departure from the spirit and scope of technical solutions of the utility model Cover among right of the present utility model.

Claims (10)

1. a kind of equipment for sludge carbonization technique, including reactor, the decompression dress being sequentially connected along material circulating direction Put and buffer storage container, it is characterised in that be in series with heat reclamation device between the reactor and the decompressor, be used for It is lowered so that material to enter after the decompressor temperature of material and occurs without flash distillation；The decompressor is not provided with dodging Steaming pot.

2. the equipment according to claim 1 for sludge carbonization technique, it is characterised in that the heat reclamation device be with The rear heat exchange of the material outlet connection of the reactor.

3. the equipment according to claim 1 for sludge carbonization technique, it is characterised in that the decompressor is frequency conversion Depressurizing pump.

4. the equipment according to claim 3 for sludge carbonization technique, it is characterised in that the depressurizing pump is multistage spiral shell Bar pump, including pump case, the material inlet of the multi-stage screw pump are arranged on the side of the pump case, and material outlet is arranged on The top of the pump case.

5. the equipment according to claim 1 for sludge carbonization technique, it is characterised in that the thing of the heat reclamation device Be parallel with the first pipeline and the second pipeline for selecting a conducting between material outlet and the buffer-stored container, first pipeline and A decompressor is respectively connected with second pipeline.

6. the equipment according to claim 5 for sludge carbonization technique, it is characterised in that the reactor and the heat Switch valve is provided between retracting device, and the switch valve is turned on when the equipment works, and is broken in the device standby Open；The public port of export of first pipeline and the second pipeline material accesses the material of the heat reclamation device by the 3rd pipeline Entrance so that the first circulation loop of material is formed between the heat reclamation device and decompressor；And the public port of export The buffer-stored container is accessed by the 4th pipeline；3rd pipeline and the 4th pipeline select a conducting.

7. the equipment according to claim 6 for sludge carbonization technique, it is characterised in that the public port of export connection The entrance of triple valve, the 3rd pipeline connects the first outlet of the triple valve, and the 4th pipeline connects the triple valve Second outlet.

8. the equipment according to claim 2 for sludge carbonization technique, it is characterised in that the material of the reactor enters Mouth connection front heat exchanger, the quantity of the front heat exchanger forms front heat exchanger group for multiple and series connection, and described rear hot The quantity of exchanger is multiple and series connection forms rear heat exchange group.

9. the equipment according to claim 8 for sludge carbonization technique, it is characterised in that the front heat exchanger group bag Three front heat exchangers are included, one-level front heat exchanger, two grades of front heat exchangers and three are followed successively by along material circulating direction Level front heat exchanger, the three-level front heat exchanger side is provided with the first entrance flowed into for heat exchange medium, described one Level front heat exchanger side is provided with the first outlet flowed out for heat exchange medium；

The rear heat exchange group includes six front heat exchangers, and heat exchange after one-level is followed successively by along material circulating direction Heat exchange after device, two grades of rear heat exchanges, three-level rear heat exchange, level Four rear heat exchange, Pyatyi rear heat exchange and six grades Device, six grades of rear heat exchange sides are provided with heat exchange after the second entrance flowed into for heat exchange medium, the one-level Device side is provided with the second outlet flowed out for heat exchange medium；

The first entrance connects the second outlet by the 5th pipeline, and the first outlet connects the second entrance, made Obtain the second circulation loop that heat exchange medium is formed between the front heat exchanger group and the rear heat exchange group.

10. the equipment according to claim 9 for sludge carbonization technique, it is characterised in that two grades of front heat exchangers and Between three-level front heat exchanger, the 3rd entrance circulated for heat exchange medium is provided with close to two grades of front heat exchangers, The three-level front heat exchanger is provided with the 3rd outlet；3rd entrance is gone out by the 6th pipeline connection described second Mouthful so that form heat exchange medium between the one-level front heat exchanger, two grades of front heat exchangers and the rear heat exchange group The 3rd circulation loop, and the 5th pipeline and the 6th pipeline select a conducting；

3rd outlet connects the first entrance by the 7th pipeline so that three-level front heat exchanger itself the formation heat 4th circulation loop of exchange media；During the 6th pipeline conducting, the 4th circulation loop is connected；5th pipeline is led When logical, the 4th circulation loop disconnects；

7th pipeline is linked into medium heat exchanger, and the medium heat exchanger by access high-temperature heat exchange tube road to Heat-exchanging medium to heat in 7th pipeline.