CN110217961A - A kind of innoxious sludge at low temperature charing process technique - Google Patents

A kind of innoxious sludge at low temperature charing process technique Download PDF

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Publication number
CN110217961A
CN110217961A CN201910537631.XA CN201910537631A CN110217961A CN 110217961 A CN110217961 A CN 110217961A CN 201910537631 A CN201910537631 A CN 201910537631A CN 110217961 A CN110217961 A CN 110217961A
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China
Prior art keywords
charing
sludge
case
gas
hybrid particles
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Granted
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CN201910537631.XA
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Chinese (zh)
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CN110217961B (en
Inventor
郭小兵
李攀力
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KARAMAY SHUNTONG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd.
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Wuhan Light Blue Environmental Technology Development Co Ltd
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Publication of CN110217961A publication Critical patent/CN110217961A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/10Treatment of sludge; Devices therefor by pyrolysis
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • C10B53/02Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B57/00Other processes not covered before; Features of destructive distillation processes in general
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B57/00Other processes not covered before; Features of destructive distillation processes in general
    • C10B57/14Features of low-temperature carbonising processes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel

Abstract

The invention discloses a kind of innoxious sludge at low temperature charing process techniques, select the rubbish rich in plant fiber, then it puts it into pulverizer and crushes, smashed plant fiber rubbish is added in screening cabinet by the loading hopper of screening machine, first motor is driven, screening cabinet body vibration is driven under the action of the first spring, the setting that the present invention is used cooperatively by the second teeth and the first teeth, it is easily installed and dismantles strainer, it is convenient that it is replaced and is repaired, it is easy to use;By setting conveyer belt and inclined plate, the granule impact power of pressing mechanism whereabouts can be reduced, avoids splashing during particles fall, causes damages, save resource, avoid wasting, manpower can be saved by conveying conveying, improve working efficiency;It is rotated by setting fire grate, residue can be excluded, accelerate air flowing, so that particle burning is more abundant, carbonization degree is high.

Description

A kind of innoxious sludge at low temperature charing process technique
Technical field
The present invention relates to technical field of sludge treatment, and in particular to a kind of innoxious sludge at low temperature charing process technique.
Background technique
In recent years, the waste production based on sewage and sludge generated during oil exploitation is continuously increased, ingredient Complexity, since moisture percentage in sewage sludge is higher, volume is larger, causes difficulty to sewage and recycling sludge processing, and store up to it The soil for needing to occupy large area is deposited or filled, easily environment is polluted, wherein contains bulk petroleum hydrocarbon in oily sludge Class, the tail gas generated during pyrolysis charring under the conditions of oxygen barrier contain sour gas, nitrogen oxides, dioxin and a huge sum of money more The toxic gases such as category, these toxic gases such as will cause environment seriously to pollute without processing direct emission.A few days ago, sludge Pyrolysis charring is used by industry gradually as a kind of more effective resource treatment technique.
In patent publication No. are as follows: CN105217916A discloses a kind of innoxious sludge carbonization treatment process and its technique system System, although can sludge steady in a long-term, energy utilization rate is high, and hot fume sensible heat is maximumlly utilized, reduces to extra power Consumption, but can not achieve and plant fiber garbage as resource is utilized, the harmlessness disposing of sludge, using screening plant to plant When fibres sieving garbage, strainer is not easy to installation and removal, it has not been convenient to be replaced and be repaired to it, manually by hybrid particles Be added to charing case in it is more time-consuming, be easy to cause waste, and carbonize case carry out carbonization process in fire grate be fixation not It is dynamic, it is not easy to residue be discharged, accelerate air flowing, so that particle burning is more abundant;Therefore it is low to design a kind of innoxious sludge Warm charing process technique.
Summary of the invention
In order to overcome above-mentioned technical problem, the purpose of the present invention is to provide a kind of innoxious sludge at low temperature charing process Technique, the present invention, which realizes, utilizes plant fiber garbage as resource, and burning sufficiently, keeps the harmful substances such as dioxin yield minimum Change, and by under the cryogenic conditions of certain time, above-mentioned harmful substance is cleaved, realizes that the heat of gas is net, treated sludge Charcoal, it is not soluble in water, and have the characteristics that innoxious, environmental-friendly;
The present invention is rotated by setting fire grate, can exclude residue, accelerates air flowing, so that particle burning is more abundant, Carbonization degree is high;
The present invention can reduce the granule impact power of pressing mechanism whereabouts, avoid particle by setting conveyer belt and inclined plate It splashes, causes damages in dropping process, save resource, avoid wasting, manpower can be saved by conveying conveying, improve work effect Rate;
The setting that the present invention is used cooperatively by the second teeth and the first teeth is easily installed and disassembly strainer, convenience pair It is replaced and is repaired, and is easy to use.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of innoxious sludge at low temperature charing process technique, comprising the following steps:
Step 1: selecting the rubbish rich in plant fiber, then put it into pulverizer and crush, by smashed plant Fiber rubbish is added in screening cabinet by the loading hopper of screening machine, drives first motor, band under the action of the first spring Dynamic screening cabinet body vibration drives screening box house sieve vibration, plant fiber rubbish is sieved in quickening, partial size The plant fiber powder for reaching requirement is gone down by sieve screening, and is discharged by the second discharge gate, is mixed with dewatered sludge, partial size The plant fiber powder for not reaching requirement stays on sieve, and is flowed out by gap, is finally discharged by first discharge port, recycling benefit With;
Step 2: water content≤30% dewatered sludge and partial size are reached the plant fiber powder of requirement with 1.2-1.5:1 Ratio be added in the pressing mechanism of mixing machine, after being uniformly mixed, extruding pelletization obtains hybrid particles;
Step 3: above-mentioned hybrid particles are transported on the fire grate in charing case by conveyer belt, by the flame of burner Mouth is passed through in charing case and lights, and ignition temperature is 450-650 DEG C, while driving the second motor, drives second by the second shaft Angular wheel rotation, and fire grate rotation is driven by the first angular wheel and first rotating shaft, so that hybrid particles rotation burning, adds Fast air flows, hybrid particles energy full combustion on fire grate, and hybrid particles residue is fallen in collecting box;
Step 4: opening air inlet pipe valve, the gas-phase product that hybrid particles combustion process generates in above-mentioned charing case passes through Air inlet pipe enters in purifying box, first by strainer filtering, activated carbon adsorption, bag-type dust, then by the side of spray thrower spray Formula is condensed, and obtains on-condensible gas, and clean strainer;
Step 5: opening return-air tube valve, above-mentioned on-condensible gas is introduced into charing case by muffler as heat supply Fuel burns, and opens simultaneously oxygen generator, and to oxygen is added in charing case, so that on-condensible gas full combustion, this is not Solidifying gas occurs oxidation reaction in charing case and obtains high-temperature flue gas;
Step 6: extraction collecting box, takes out hybrid particles residue in collecting box, while will carbonize hybrid particles burning in case It is discharged, and is recycled after solid residue afterwards is cooling.
As a further solution of the present invention: the dewatered sludge is obtained by mechanical dehydration and two step of thermal dehydration 's.
As a further solution of the present invention: the mechanical dehydration be by the raw sewage of water content >=90% by squeeze or The mode of person's drying carries out mechanical dehydration, obtains the primary dewatering sludge of water content 40-60%, the thermal dehydration is will be described Primary dewatering sludge dries to obtain water content≤30% dewatered sludge.
As a further solution of the present invention: it is 180-230 DEG C that temperature is squeezed in the pressing mechanism.
As a further solution of the present invention: the burner is neat gas burner, biomass particle burner, fuel oil It is a kind of in burner, coal burner.
As a further solution of the present invention: the screening machine includes screening cabinet, the top uniform welding of the bracket Four first springs are fixed with, screening cabinet, the bottom of the screening cabinet are fixedly installed at the top of four first springs First motor is fixedly installed at portion center, the bottom end of the screening cabinet offers first discharge port and second row respectively The inner wall two sides of material mouth, the screening cabinet are symmetrically installed with support plate, and sieve is placed in the support plate, the sieve Two sides are respectively arranged with the first teeth, and the two sides of the support plate are evenly arranged with screw rod, one end welding of the screw rod respectively It is fixed with knob, the inner wall that the other end of the screw rod passes through screening cabinet is fixedly connected with fixed plate, the bottom of the fixed plate Portion is slidably connected with support plate, and the side of the fixed plate is fixedly installed with the second teeth;Sieve is placed in two support plates, Knob is rotated, screw rod rotation is driven, so that fixed plate is pushed to slide, since the second teeth and the first teeth are used cooperatively, thus It pushes fixed plate to fix sieve, is easily installed, during avoiding vibration, sieve is shaken, otherwise i.e. detachable sieve, is convenient for It is repaired and is replaced, is easy to use;
The two sides of the screening cabinet are fixedly installed with locking bed respectively, are connected with locking wrench on the locking bed With locking pull rod, top cover is provided at the top of the screening cabinet, the two sides of the top cover are uniformly equipped with locking hangers, described Loading hopper is installed at the top of top cover;The locking hangers is used cooperatively with locking pull rod, is drawn by locking hangers and locking Bar is used cooperatively, convenient for convenient for repairing and using to it, facilitating operation for top cover and the fractionation of screening cabinet and installation.
As a further solution of the present invention: the mixing machine includes pressing mechanism, charing case and purifying box, two electricity It is fixedly installed with conveying frame at the top of dynamic telescopic rod, conveyer belt, the two sides of the conveyer belt are provided in the conveying frame It is separately installed with support column, second spring is fixedly installed at the top of the support column, is equipped at the top of the second spring Inclined plate, the inclined plate and conveying frame are installed in 30-60 degree angle, by the setting of inclined plate and second spring, can reduce extruding The granule impact power that mechanism falls avoids splashing during particles fall, causes damages, save resource, avoid wasting, described oblique Pressing mechanism is installed, described conveying frame one end is extend into the feed inlet that charing case side opens up, described right above plate The side of charing case offers air inlet, and the side of the air inlet is equipped with the second motor, the output shaft of second motor It being fixedly connected with the second shaft being arranged inside charing case, one end of second shaft is fixedly installed with the second angular wheel, The engagement of second angular wheel connects the first angular wheel, and the top of first angular wheel passes through first rotating shaft and furnace Row is fixedly connected, and the inner wall of the fire grate and charing case is slidably connected, and the side of the charing case is equipped with oxygen generator, charcoal The other side for changing case is equipped with burner;
The top of the charing case is connect by air inlet pipe with purifying box, and the inside of the purifying box is fixedly installed with filter Net is provided with spray thrower right above the strainer, and the purifying box is connect by muffler with case is carbonized, muffler and air inlet Check valve is provided on pipe;Gas intercommunication is avoided, heat losses are caused;
The bottom interior wall of the charing case slidably connects collecting box, and the collecting box is located at immediately below fire grate, passes through receipts Header is slidably connected with charing case, convenient for extraction collecting box, is conducive to take out residue.
Beneficial effects of the present invention:
1, the present invention mixes plant fiber powder with dewatered sludge, extruding pelletization, and under 450-650 DEG C of low temperature, combustion A period of time is burnt, is on the one hand realized to plant fiber rubbish object resource utilization, has dioxin etc. under another aspect low temperature Evil substance cracking realizes that the heat of gas is net, treated sludge carbon, not soluble in water, and has innoxious, environmental-friendly spy Point;
2, in the carbonization process of sludge at low temperature charing process technique, the hybrid particles of extrusion is fallen on conveyer belt, are passed through The setting of inclined plate and second spring can reduce the impact force of particles fall, avoid splashing during particles fall, cause to damage It loses, and is transported on the fire grate in charing case by conveyer belt, be not necessarily to artificial conveyance, working efficiency improved, by the spray of burner Burner is passed through charing case burning, while driving the second motor, drives the rotation of the second angular wheel, the second taper by the second shaft Gear drives the first angular wheel, and the first angular wheel drives fire grate to rotate by first rotating shaft, on the one hand fire grate rotation is accelerated Air flowing, promotes hybrid particles energy full combustion on fire grate, and the solid residue after on the other hand making hybrid particles burn is fallen In collecting box, not only it is collected, while it being avoided to block fire grate, combustion efficiency is influenced, makes the nuisances such as dioxin Matter yield minimizes;
3, in the purification process of sludge at low temperature charing process technique, on-condensible gas is introduced into charing case by muffler It burns as fuel of heat supply, and opens oxygen generator, to oxygen is provided in charing case, so that on-condensible gas can sufficiently fire It burns, which occurs oxidation reaction in charing case and obtain high-temperature flue gas, can divide the gas-phase product generated in charing case Other cleaning type recycling is, it can be achieved that the pyrolysis gas to a variety of debirs carries out resource utilization, for carbonizing case offer thermal energy, in fact Existing self-produced self-sufficiency, to thoroughly realize the cyclic utilization of waste;
4, during the sieving garbage of sludge at low temperature charing process technique, plant fiber rubbish by screening machine loading hopper It is added in screening cabinet, drives first motor, screening box house sieve vibration, sieve are driven under the action of the first spring Vibration can be accelerated to sieve plant fiber rubbish, improve working efficiency, be conducive to particle charing ashes and reduce, grain forming is steady It is fixed;
5, during the sieving garbage of sludge at low temperature charing process technique, sieve is placed in two support plates, rotation rotation Button drives screw rod rotation, to push fixed plate to slide, since the second teeth and the first teeth are used cooperatively, to push solid Fixed board fixes sieve, is easily installed, during avoiding vibration, sieve shake, otherwise i.e. detachable sieve, convenient for its into Row maintenance and replacement, are easy to use;It is used cooperatively, is convenient for top cover and screening cabinet by locking hangers and locking pull rod simultaneously It splits and installs, convenient for repairing and using to it, facilitate operation;By the setting of inclined plate and second spring, can reduce The granule impact power that pressing mechanism falls avoids splashing during particles fall, causes damages, save resource, avoid wasting.
Detailed description of the invention
The present invention will be further described below with reference to the drawings.
Fig. 1 is screening machine overall structure diagram of the present invention;
Fig. 2 is screening machine configuration schematic diagram in the present invention;
Fig. 3 is screening box inner structure schematic diagram in the present invention;
Fig. 4 is mixing machine overall structure diagram in the present invention;
Fig. 5 is charing case overall structure diagram in the present invention;
Fig. 6 is conveying frame side structure schematic view in the present invention;
Fig. 7 is middle swash plate overall structure diagram of the present invention.
In figure: 1, bracket;2, the first spring;3, cabinet is sieved;4, loading hopper;5, locking bed;6, locking wrench;7, it locks Strain at bar;8, top cover;9, first discharge port;10, the second discharge gate;11, first motor;12, sieve;13, hangers is locked;14, Gap;15, screw rod;16, knob;17, fixed plate;18, support plate;19, the first teeth;20, the second teeth;21, pressing mechanism; 22, conveying frame;23, electric telescopic rod;24, case is carbonized;25, fire grate;26, first rotating shaft;27, collecting box;28, the first taper Gear;29, the second angular wheel;30, the second shaft;31, the second motor;32, purifying box;33, strainer;34, spray thrower;35, Air inlet pipe;36, muffler;37, oxygen generator;38, air inlet;39, support column;40, conveyer belt;41, inclined plate;42, second Spring;43, feed inlet;44, burner.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other Embodiment shall fall within the protection scope of the present invention.
It please refers to shown in Fig. 1-7, a kind of innoxious sludge at low temperature charing process technique, comprising the following steps:
Step 1: selecting the rubbish rich in plant fiber, then put it into pulverizer and crush, by smashed plant Fiber rubbish is added in screening cabinet 3 by the loading hopper 4 of screening machine, first motor 11 is driven, in the effect of the first spring 2 3 body vibration of cabinet is sieved in lower drive, that is, drives screening 3 internal screen 12 of cabinet vibration, accelerate to carry out plant fiber rubbish Screening, the plant fiber powder that partial size reaches requirement are gone down by the screening of sieve 12, are mixed with dewatered sludge, and by the second discharge Mouth 10 is discharged, and the plant fiber powder that partial size does not reach requirement stays on sieve 12, and is flowed out by gap 14, finally by first Discharge gate 9 is discharged, and recycles;
Step 2: water content≤30% dewatered sludge and partial size are reached the plant fiber powder of requirement with 1.2-1.5:1 Ratio be added in the pressing mechanism 21 of mixing machine, after being uniformly mixed, extruding pelletization, squeeze temperature be 180-230 DEG C, Obtain hybrid particles;
Step 3: the hybrid particles that pressing mechanism 21 squeezes out are fallen on conveyer belt 40, and charcoal is transported to by conveyer belt 40 Change on the fire grate 25 in case 24, the bocca of burner 44 is passed through charing case 24 and is burnt, ignition temperature is 450-650 DEG C, together When drive the second motor 31, pass through the second shaft 30 drive the second angular wheel 29 rotation, the second angular wheel 29 drive first Angular wheel 28, the first angular wheel 28 drive fire grate 25 to rotate by first rotating shaft 26, accelerate air flowing, so that mixing Grain residue is fallen in collecting box 27, hybrid particles energy full combustion on fire grate 25;
Step 4: the gas-phase product that hybrid particles combustion process generates in above-mentioned charing case 24, is entered by air inlet pipe 35 Into purifying box 32, first by 33 filtering of strainer, activated carbon adsorption, bag-type dust, the mode that is then sprayed by spray thrower 34 into Row condensation, obtains on-condensible gas, and clean strainer 33;
It is fired Step 5: above-mentioned on-condensible gas is introduced into charing case 24 by muffler 36 as fuel of heat supply It burns, which occurs oxidation reaction in charing case 24 and obtain high-temperature flue gas;
Step 6: extraction collecting box 27, takes out hybrid particles residue in collecting box 27, while will the interior mixing of charing case 24 It is discharged, and is recycled after solid residue cooling after grain burning.
Wherein, the dewatered sludge is obtained by mechanical dehydration and two step of thermal dehydration;The mechanical dehydration be by The raw sewage of water content >=90% carries out mechanical dehydration by way of squeezing or drying, and obtains the first of water content 40-60% Grade dewatered sludge, the thermal dehydration is to dry the primary dewatering sludge to obtain water content≤30% dewatered sludge;It is described Burner 44 is one of neat gas burner, biomass particle burner, oil burner, coal burner.
It please refers to shown in Fig. 1-3, the screening machine includes screening cabinet 3, and the top uniform welding of the bracket 1 is fixed with Four first springs 2, the top of four first springs 2 are fixedly installed with screening cabinet 3, the bottom of the screening cabinet 3 First motor 11 is fixedly installed at center, the bottom end of the screening cabinet 3 offers first discharge port 9 and second respectively The inner wall two sides of discharge gate 10, the screening cabinet 3 are symmetrically installed with support plate 18, are placed with sieve in the support plate 18 12, the two sides of the sieve 12 are respectively arranged with the first teeth 19, and the two sides of the support plate 18 are evenly arranged with screw rod respectively 15, one end of the screw rod 15 is welded with knob 16, and the other end of the screw rod 15 is across the inner wall for sieving cabinet 3 and admittedly Fixed board 17 is fixedly connected, and bottom and the support plate 18 of the fixed plate 17 are slidably connected, the fixed peace in the side of the fixed plate 17 Equipped with the second teeth 20;Sieve 12 is placed in two support plates 18, knob 16 is rotated, drives screw rod 15 to rotate, to push Fixed plate 17 is slided, since the second teeth 20 and the first teeth 19 are used cooperatively, thus push fixed plate 17 that sieve 12 is fixed, It is easily installed, during avoiding vibration, sieve 12 is shaken, otherwise i.e. detachable sieve 12, convenient for repairing to it and more It changes, is easy to use;
The two sides of the screening cabinet 3 are fixedly installed with locking bed 5 respectively, are connected with locking on the locking bed 5 The top of spanner 6 and locking pull rod 7, the screening cabinet 3 is provided with top cover 8, and the two sides of the top cover 8 are uniformly equipped with locking The top of hangers 13, the top cover 8 is equipped with loading hopper 4;The locking hangers 13 is used cooperatively with locking pull rod 7, is passed through Locking hangers 13 is used cooperatively with locking pull rod 7, is convenient for that top cover 8 and screening cabinet 3 are split and installed, convenient for tieing up it It repairs and uses, facilitate operation.
It please refers to shown in Fig. 4-7, the mixing machine includes pressing mechanism 21, charing case 24 and purifying box 32, two electricity The top of dynamic telescopic rod 23 is fixedly installed with conveying frame 22, and conveyer belt 40, the conveying are provided in the conveying frame 22 Two sides with 40 are separately installed with support column 39, and the top of the support column 39 is fixedly installed with second spring 42, and described second The top of spring 42 is equipped with inclined plate 41, and the inclined plate 41 and conveying frame 22 pass through inclined plate 41 and the in the installation of 30-60 degree angle The setting of two springs 42 can reduce the granule impact power of the whereabouts of pressing mechanism 21, avoid splashing during particles fall, cause Loss, the surface of the inclined plate 41 are equipped with pressing mechanism 21, and described 22 one end of conveying frame extend into charing 24 side of case In the feed inlet 43 opened up, the side of the charing case 24 offers air inlet 38, and the side of the air inlet 38 is equipped with the The second shaft 30 being arranged inside two motors 31, the output shaft of second motor 31 and charing case 24 is fixedly connected, and described the One end of two shafts 30 is fixedly installed with the second angular wheel 29, and the engagement of second angular wheel 29 connects the first conical tooth The top of wheel 28, first angular wheel 28 is fixedly connected by first rotating shaft 26 with fire grate 25, the fire grate 25 and charing The inner wall of case 24 is slidably connected, and the side of the charing case 24 is equipped with oxygen generator 37, the other side installation of charing case 24 There is burner 44;
The top of the charing case 24 is connect by air inlet pipe 35 with purifying box 32, the fixed peace in the inside of the purifying box 32 Equipped with strainer 33, the surface of the strainer 33 is provided with spray thrower 34, and the purifying box 32 passes through muffler 36 and charing case 24 connect, and are provided with check valve in muffler 36 and air inlet pipe 35, avoid gas intercommunication, cause heat losses;
The bottom interior wall of the charing case 24 slidably connects collecting box 27, under the collecting box 27 is located at fire grate 25 just Side is conducive to take out residue convenient for extraction collecting box 27.
The working principle of the invention: smashed plant fiber rubbish is added to screening by the loading hopper 4 of screening machine In cabinet 3, first motor 11 is driven, screening 3 body vibration of cabinet is driven under the action of the first spring 2, that is, drives screening case The vibration of 3 internal screen 12 of body, the vibration of sieve 12 can be accelerated to sieve plant fiber rubbish, improve working efficiency, partial size reaches Plant fiber powder to requirement is gone down by the screening of sieve 12, and is discharged by the second discharge gate 10, and partial size does not reach requirement Plant fiber powder end stay on sieve 12, and flowed out by gap 14, be finally discharged by first discharge port 9;By water content≤ The plant fiber powder that 30% dewatered sludge and partial size reach requirement is added to the extruder of mixing machine with the ratio of 1.2-1.5:1 In structure 21, after being uniformly mixed, extruding pelletization, squeezing temperature is 180-230 DEG C, obtains hybrid particles;Pressing mechanism 21 squeezes Hybrid particles out are fallen on conveyer belt 40, and are transported on the fire grate 25 in charing case 24 by conveyer belt 40, by burner 44 bocca is passed through charing case 24 and burns, and ignition temperature is 450-650 DEG C, while driving the second motor 31, passes through second turn Axis 30 drives the rotation of the second angular wheel 29, and the second angular wheel 29 drives the first angular wheel 28, and the first angular wheel 28 is logical Crossing first rotating shaft 26 drives fire grate 25 to rotate, on the one hand air flowing is accelerated in the rotation of fire grate 25, promotes hybrid particles on fire grate 25 Energy full combustion, the solid residue after on the other hand making hybrid particles burn fall in collecting box 27, not only receive to it Collection, while it being avoided to block fire grate 25, combustion efficiency is influenced, is opened 35 valve of air inlet pipe, hybrid particles combustion in case 24 is carbonized The gas-phase product that burning process generates, is entered in purifying box 32 by air inlet pipe 35, is inhaled first by the filtering of strainer 33, active carbon Then attached, bag-type dust is condensed by the mode that spray thrower 34 sprays, obtain on-condensible gas, and cleans strainer 33;It opens back On-condensible gas is introduced into charing case 24 by muffler 36 and is burnt as fuel of heat supply, and opened by 36 valve of tracheae Oxygen generator 37, to charing case 24 in oxygen is provided so that on-condensible gas can full combustion, the on-condensible gas charing case 24 Interior generation oxidation reaction obtains high-temperature flue gas, cleaning type recycling can be distinguished to the gas-phase product generated in charing case 24, it can be achieved that Resource utilization is carried out to the pyrolysis gas of a variety of debirs;It extracts collecting box 27 out, takes out hybrid particles residue in collecting box 27, It will be discharged, and recycled after the solid residue cooling after hybrid particles burning in charing case 24 simultaneously.
Sieve 12 is placed in two support plates 18, knob 16 is rotated, drives screw rod 15 to rotate, to push fixed plate 17 Sliding, since the second teeth 20 and the first teeth 19 are used cooperatively, to push fixed plate 17 that sieve 12 is fixed, convenient for peace Dress, during avoiding vibration, sieve 12 is shaken, otherwise i.e. detachable sieve 12, convenient convenient for repairing and replacing to it It uses;It is used cooperatively simultaneously by locking hangers 13 and locking pull rod 7, is convenient for that top cover 8 and screening cabinet 3 are split and installed, Convenient for repairing and using to it, facilitate operation;
The top of the support column 39 is fixedly installed with second spring 42, and the top of the second spring 42 is equipped with inclined plate 41, the inclined plate 41 is installed with conveying frame 22 in 30-60 degree angle, by the setting of inclined plate 41 and second spring 42, can be dropped The granule impact power that low pressing mechanism 21 falls avoids splashing during particles fall, cause damages.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example. Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close Suitable mode combines.
Above content is only citing made for the present invention and explanation, affiliated those skilled in the art are to being retouched The specific embodiment stated does various modifications or additions or is substituted in a similar manner, and without departing from invention or surpasses More range defined in the claims, is within the scope of protection of the invention.

Claims (7)

1. a kind of innoxious sludge at low temperature charing process technique, which comprises the following steps:
Step 1: water content≤30% dewatered sludge and plant fiber powder are added to mixing machine with the ratio of 1.2-1.5:1 Pressing mechanism in, after being uniformly mixed, extruding pelletization obtains hybrid particles;
Step 2: above-mentioned hybrid particles are transported on the fire grate in charing case by conveyer belt, the bocca of burner is led to Enter to carbonize in case and light, ignition temperature is 450-650 DEG C, while driving the second motor, drives the second taper by the second shaft Gear rotation, and fire grate rotation is driven by the first angular wheel and first rotating shaft, so that hybrid particles rotation burning;
Step 3: the gas-phase product that hybrid particles combustion process generates in above-mentioned charing case, enters purifying box by air inlet pipe In, first by strainer filtering, dust is removed, is then condensed, and clean strainer, is not coagulated by the mode that spray thrower sprays Gas;
It burns Step 4: above-mentioned on-condensible gas is introduced into charing case by muffler as fuel of heat supply, this is not coagulated Gas occurs oxidation reaction in charing case and obtains high-temperature flue gas;
Step 5: by being discharged after the solid residue cooling after hybrid particles burning in charing case, and recycled.
2. a kind of innoxious sludge at low temperature charing process technique according to claim 1, which is characterized in that the dehydration is dirty Mud is obtained by mechanical dehydration and two step of thermal dehydration.
3. a kind of innoxious sludge at low temperature charing process technique according to claim 2, which is characterized in that described mechanical de- Water is that the raw sewage of water content >=90% is carried out to mechanical dehydration by way of squeezing or drying, and obtains water content 40- 60% primary dewatering sludge, the thermal dehydration are to dry the primary dewatering sludge to obtain water content≤30% dehydration dirt Mud.
4. a kind of innoxious sludge at low temperature charing process technique according to claim 1, which is characterized in that the plant is fine Dimension powder is prepared by following step: the rubbish rich in plant fiber selected, then puts it into pulverizer and crushes, it will Smashed plant fiber rubbish is added in screening cabinet by the loading hopper of screening machine, first motor is driven, in the first bullet Screening cabinet body vibration is driven under the action of spring, that is, drives screening box house sieve vibration, plant fiber rubbish is carried out Screening, the plant fiber powder that partial size reaches requirement is gone down by sieve screening, and is discharged by the second discharge gate, with dewatered sludge Mixing, the plant fiber powder that partial size does not reach requirement stays on sieve, and is flowed out by gap, is finally arranged by first discharge port Out, it recycles.
5. a kind of innoxious sludge at low temperature charing process technique according to claim 1, which is characterized in that the extruder It is 180-230 DEG C that temperature is squeezed in structure.
6. a kind of innoxious sludge at low temperature charing process technique according to claim 1, which is characterized in that the burner It is a kind of in neat gas burner, biomass particle burner, oil burner, coal burner.
7. a kind of innoxious sludge at low temperature charing process technique according to claim 1, which is characterized in that the mixing machine Work step are as follows: after plant fiber powder and dewatered sludge are uniformly mixed by pressing mechanism, extruding pelletization is mixed Particle, the hybrid particles that pressing mechanism squeezes out are fallen on conveyer belt, and are transported on the fire grate in charing case by conveyer belt, will The bocca of burner is passed through charing case and lights, and ignition temperature is 450-650 DEG C, while driving the second motor, passes through second turn Axis drives the rotation of the second angular wheel, and the second angular wheel drives the first angular wheel, and the first angular wheel passes through first rotating shaft Fire grate rotation is driven, so that mixture rotation burning, and hybrid particles residue is fallen in collecting box;Open air inlet pipe valve Door carbonizes the gas-phase product that hybrid particles combustion process generates in case, is entered in purifying box by air inlet pipe, first by strainer Then filtering, activated carbon adsorption, bag-type dust are condensed by the mode that spray thrower sprays, and clean strainer, fixed gas is obtained Body;Return-air tube valve is opened, on-condensible gas is introduced into charing case by muffler and is burnt as fuel of heat supply, and And oxygen generator is opened, to oxygen is added in charing case, on-condensible gas occurs oxidation reaction in charing case and obtains high temperature cigarette Gas, finally extracts collecting box out, takes out hybrid particles residue in collecting box, while will carbonize solid in case after hybrid particles burning It is discharged, and is recycled after residue is cooling.
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CN111426173A (en) * 2020-04-13 2020-07-17 保定中药制药股份有限公司 Circulating hot air oven for processing traditional Chinese medicine pills

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