CN105036511A - Sugar refinery filter mud microwave dewatering and drying treatment process and dewatering and drying device - Google Patents
Sugar refinery filter mud microwave dewatering and drying treatment process and dewatering and drying device Download PDFInfo
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- CN105036511A CN105036511A CN201510439551.2A CN201510439551A CN105036511A CN 105036511 A CN105036511 A CN 105036511A CN 201510439551 A CN201510439551 A CN 201510439551A CN 105036511 A CN105036511 A CN 105036511A
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Abstract
A sugar refinery filter mud microwave dewatering and drying treatment process comprises the steps of 1 predewatering, 2 filter mud preheating and 3 microwave dewatering. A dewatering and drying device for the treatment process comprises a filter mud dewatering device, a high frequency furnace and a filter mud microwave drying device. The filter mud dewatering device comprises a spiral squeezing mechanism formed by a spiral squeezing rod, a filter screen barrel surrounding the periphery of the spiral squeezing rod in sequence, and a push-pull outer shell. A feeding opening is formed in the upper portion of the front end of the filter screen barrel, a mud discharging opening is formed in the rear end of the filter screen barrel, a sugar water collecting basin is arranged at the bottom of the filter screen barrel, a mud discharging conveying belt is arranged on the lower portion of the mud discharging opening, and a pressing ring adjusting mechanism is arranged on the mud discharging opening. The filter mud microwave drying device comprises a combustion chamber, a secondary combustion and heat exchange chamber and a drying box, a feeding opening and a moisture removing opening are formed in the top of the drying box, a discharging opening is formed in the bottom of the tail end of the drying box, and a plurality of layers of conveying belts, heating exchange pipes and a microwave pipe are mounted in the drying box. The process is reasonable in design, high in efficiency, high in speed, low in cost and free of pollution, soil can be prevented from being subjected to secondary pollution of filter mud, and waste is changed into wealth.
Description
Technical field
The present invention relates to a kind of processed technique and device, particularly a kind of filter mud of sugar refinery microwave dehydration dry treatment process and dewatering drying device.
Background technology
The sugarcane juice extracted from sugarcane is except containing except more sugar composition, also have various inorganics and organic non-sugar impurities, the existence of these non-sugars, have influence on extraction and the quality product of sucrose, therefore, sugar refinery is for the sugarcane juice of crushing sugar cane, clean and clear process must be carried out, namely in sugarcane juice, add milk of lime etc. as finings, some non-saccharide fractional precipitation is separated, obtain pellucid syrup and refine into commerieal sugar; And the hydrate molecule group throw out formed after cane juice clarification, after vacuum suction filter dehydration, become filter mud release.
In order to improve clarifying effect, in clarifying process except adding milk of lime, also pass into carbonic acid gas or sulfurous gas, different according to finings used, defecation method is called lime method, carbonatation process, sulfurous method, the composition of filter mud of sugar refinery is different because defecation method is different, except containing a large amount of moisture, fiber, sugar, wax, protein, organic acid, outside earth, also have a large amount of calcium carbonate produced due to fining process difference, calcium sulfite throw out, also containing a certain amount of sulfite ion in the aqueous solution of sulfurous method sugar mill mud, these ions form a hydrate molecule group, if flow back to soil, wherein contained calcium ion, the long-term enrichment of sulfite ion, soil property calcification can be caused, the serious problems such as soil property hardens.
Current sugar manufacturing industry is all simple fermented manure to the mode of the aftertreatment of filter mud or directly flows back to soil without any process, objectionable constituent contained in filter mud (hydrate molecule group) are all unprocessed, not only can spoiled soil, and a large amount of odor pollutions can be produced in filter mud put procedure.
Summary of the invention
The object of the present invention is to provide a kind of filter mud of sugar refinery microwave dehydration dry treatment process and dewatering drying device, to overcome the above-mentioned deficiency existing for prior art.
The technical scheme solved the problems of the technologies described above is: a kind of filter mud of sugar refinery microwave dehydration dry treatment process, comprises the following steps:
1) predrainage
From the sugar mill mud mud discharging mouth erection conveying belt in sugar refinery
,be about 80% by the water ratio after vacuum suction filter, the sugar mill mud of sposh shape is delivered to filter mud dewatering unit opening for feed, push importing via screw-blade and carry out reducing squeezing, after about 15 minutes, obtain the fine grained chippings shape dehydration filter mud of water ratio 55% ~ 60%, discharge from the mud extraction conveying belt of filter mud dewatering unit;
2) filter mud preheating
The fine grained chippings shape dehydration filter mud obtained through step 1) process is imported high frequency furnace rapid heating 5 minutes, high frequency furnace cavity temperature 300-500 ° of C, destroys filter mud water clusters structure, obtain half dry filter mud of water ratio about 45%;
3) microwave dehydration
Will through step 2) half dry filter mud that obtains to import in filter mud microwave drier dehydration 10 minutes, obtains the dehydration filter mud of water ratio less than 20%.
Its another technical scheme is
:for the dewatering drying device of above-mentioned a kind of filter mud of sugar refinery microwave dehydration dry treatment process, comprise filter mud dewatering unit, high frequency furnace and filter mud microwave drier;
Described filter mud dewatering unit comprises support and installation and is contained in screw press mechanism on support, described screw press mechanism comprises screw press bar, the screen tube being enclosed in screw press bar periphery successively and the plug-type shell that level is installed, one end of screw press bar is in transmission connection by sprocket wheel and transmission rig, the upper front end of screen tube establishes the opening for feed communicated with screw press bar, mud mouth is established in screen tube rear end, the bottom of screen tube establishes syrup to collect basin, mud mouth bottom sets out mud conveying belt, and described mud mouth place is provided with pressure ring regulating mechanism;
Further technical scheme is: described high frequency furnace comprises high frequency housing, coil and metal inductor high temperature, high frequency housing is for generation of high-frequency current, high-frequency current produces ultra-high speed rotatingfield via coil, metal inductor in magnetic field is rapidly heated to high temperature 300-500 degree, filter mud is heated to rapidly more than 120 degree, destroy its water clusters, make it easily enter follow-up microwave dehydration; The rated output of high frequency furnace is 30kw, and treatment capacity is 100 tons/day;
Further: described filter mud microwave drier comprises combustion chamber, secondary combustion and heat exchange chamber and loft drier, combustion chamber with dry filter mud gasification combustion engine is arranged on the front portion outside loft drier, secondary combustion and heat exchange chamber are arranged on the front end in loft drier, the escape pipe of the dry filter mud gasification combustion engine of combustion chamber is connected with secondary combustion and heat exchange chamber, loft drier tail end peripheral hardware circulation of tail gas airduct and circulation of tail gas blower fan, the top of loft drier is provided with hopper and moisture exhausting port, establishes discharge port bottom loft drier tail end;
Multi-layer transmission band is horizontally installed with in described loft drier, each layer transmission belt left and right tip position staggers, that is: the corresponding hopper of top layer transmission belt right-hand member, and the left end of second layer transmission belt grows the left end of top layer transmission belt, the right-hand member of third layer transmission belt grows the right-hand member of second layer transmission belt, so analogizes; The carriage direction end of lowest layer transmission belt is corresponding with the discharge port of bottom;
Described transmission belt is in transmission connection by chain and the transmission rig be arranged on outside loft drier, the rotation direction of adjacent two layers transmission belt is contrary, that is: top layer transmission belt is from hopper one end to left movement, and second layer transmission belt moves right, third layer transmission belt, to left movement, is so analogized; Transmission belt and the same transmission rig of same direction of motion are in transmission connection;
The transmission belt top of bottom is provided with the microwave tube for heating, and is provided with the heat exchanger tube for heating between other layer of transmission belt except bottom, and described heat exchanger tube left end communicates with the air channel of secondary combustion and heat exchange chamber, and right-hand member communicates with circulation of tail gas airduct;
Described loft drier top is provided with multiple self-circulation calorifier communicated with loft drier;
The moisture exhausting port at loft drier top communicates with the off gas treatment tank of loft drier outside, and described circulation of tail gas airduct communicates with loft drier top layer transmission belt upper channel; Described loft drier surrounding establishes thermal insulation layer;
Described transmission belt adopts stainless material to make, and is provided with cylinder bottom transmission belt.
Owing to taking technique scheme, a kind of filter mud of sugar refinery microwave dehydration dry treatment process of the present invention and dewatering drying device have following beneficial effect:
1. this technique adopts three kinds of different dewatering drying devices, and efficiency is high, speed is fast, and technological design is reasonable, and processing cost is cheap.
Because microwave can only work to the water molecules of internal batch, and high frequency furnace can only from indirect heating, the two combines, air and throughout its mass can be heated to certain temperature by preheating by dielectric losses chamber instantaneously, then send in microwave treater, carry out microwave infiltration again after throughout its mass heating, can produce rapidly high heat and the water in material be become water vapor discharge, whole dewatering process is efficiently rapid.
2. whole set process of the present invention only uses clean energy electric power as unique energy source, do not produce any additional contamination, meet environmental requirement, the power consumption of mechanical expression water extracter is extremely low, and treatment capacity is that the equipment of 100 tons/day only uses 18kw motor to drive, support the use preheating by dielectric losses chamber and microwave treater, total power is no more than 100KW, and it is designed to multiple layer metal conveyer belt structure, has both improve efficiency and the microwave irradiation rate of heat exchange, improve energy consumption efficiency ratio, greatly can reduce equipment volume again;
3. the sugar mill mud water ratio less than 20% after the dehydration of this technique, overall reduced training is obvious, the former filter mud of 10000 tons is after dehydration, can reduce by the weight of 60%, volume reduces more than 80%, about dehydration filter mud calorific value 2500 kilocalorie, both directly can mix as fuel the bagasse stove burning into sugar refinery self, or be hybridly prepared into biomass fuel for other boiler combustions, also can be used as stopping composition, for material of construction such as firing porous bricks, the serious problems that filter mud backflow causes soil secondary pollution can be solved on the one hand, make use of the three wastes, save energy on the other hand.
Below, in conjunction with embodiment, a kind of filter mud of sugar refinery microwave dehydration dry treatment process of the present invention and the technical characteristic of dewatering drying device are further described.
Accompanying drawing explanation
Fig. 1 is filter mud dewatering unit structural representation;
Fig. 2 is filter mud microwave drier structural representation;
Fig. 3 is the A-A sectional view of Fig. 2;
In figure:
1-support, 2-screw press bar, 3-opening for feed, 4-screen tube, the plug-type shell of 5-, 6-pressure ring regulating mechanism, 7-sprocket wheel, 8-mud extraction conveying belt, 9-mud mouth, basin collected by 10-syrup, 11-combustion chamber, 12-loft drier, 121-thermal insulation layer, 122-moisture exhausting port, 13-secondary combustion and heat exchange chamber, 14-transmission rig, 15-self-circulation calorifier, 16-transmission belt, 17-heat exchanger tube, 18-hopper, 19-circulation of tail gas airduct, 20-circulation of tail gas blower fan, 21-microwave tube, 22-discharge port.
Embodiment
Embodiment one
A kind of filter mud of sugar refinery microwave dehydration dry treatment process, comprises the following steps:
1) predrainage
From the sugar mill mud mud discharging mouth erection conveying belt in sugar refinery
,be about 80% by the water ratio after vacuum suction filter, the sugar mill mud of sposh shape is delivered to filter mud dewatering unit opening for feed, push importing via screw-blade and carry out reducing squeezing, after about 15 minutes, obtain the fine grained chippings shape dehydration filter mud of water ratio 55% ~ 60%, discharge from the mud extraction conveying belt of filter mud dewatering unit;
2) filter mud preheating
The fine grained chippings shape dehydration filter mud obtained through step 1) process is imported high frequency furnace rapid heating 5 minutes, high frequency furnace cavity temperature 300-500 ° of C, destroys filter mud water clusters structure, obtain half dry filter mud of water ratio about 45%;
3) microwave dehydration
Will through step 2) half dry filter mud that obtains to import in filter mud microwave drier dehydration 10 minutes, obtains the dehydration filter mud of water ratio less than 20%.
Embodiment two
A kind of dewatering drying device of filter mud of sugar refinery microwave dehydration dry treatment process: filter mud dewatering unit, described filter mud dewatering unit comprises support 1 and is contained in the screw press mechanism on support, described screw press mechanism comprises the screw press bar 2 that level is installed, be enclosed in screen tube 4 and the plug-type shell 5 of screw press bar periphery successively, one end of screw press bar is in transmission connection by sprocket wheel 7 and transmission rig, the upper front end of screen tube establishes the opening for feed 3 communicated with screw press bar, mud mouth 9 is established in screen tube rear end, the bottom of screen tube establishes syrup to collect basin 10, mud mouth bottom sets out mud conveying belt 8, described mud mouth place is provided with pressure ring regulating mechanism 6.
Embodiment three
A kind of dewatering drying device of filter mud of sugar refinery microwave dehydration dry treatment process: high frequency furnace, described high frequency furnace comprises high frequency housing, coil and metal inductor high temperature, high frequency housing is for generation of high-frequency current, high-frequency current produces ultra-high speed rotatingfield via coil, metal inductor in magnetic field is rapidly heated to high temperature 300-500 degree, filter mud is heated to rapidly more than 120 degree, destroys its water clusters, make it easily enter follow-up microwave dehydration; The rated output of high frequency furnace is 30kw, and treatment capacity is 100 tons/day;
Embodiment four
A kind of dewatering drying device of filter mud of sugar refinery microwave dehydration dry treatment process: described filter mud microwave drier comprises combustion chamber 11, secondary combustion and heat exchange chamber 13 and loft drier 12, combustion chamber 11 with dry filter mud gasification combustion engine is arranged on the front portion outside loft drier 12, secondary combustion and heat exchange chamber 13 are arranged on the front end in loft drier 12, the escape pipe of the dry filter mud gasification combustion engine of combustion chamber 11 is connected with secondary combustion and heat exchange chamber 13, loft drier 12 tail end peripheral hardware circulation of tail gas airduct 19 and circulation of tail gas blower fan 20, the top of loft drier is provided with hopper 18 and moisture exhausting port 122, discharge port 22 is established bottom loft drier tail end,
Multi-layer transmission band 16 is horizontally installed with in described loft drier, each layer transmission belt left and right tip position staggers, that is: the corresponding hopper of top layer transmission belt right-hand member, the left end of second layer transmission belt grows the left end of top layer transmission belt, the right-hand member of third layer transmission belt grows the right-hand member of second layer transmission belt, so analogizes; The carriage direction end of lowest layer transmission belt is corresponding with the discharge port of bottom;
Described transmission belt is in transmission connection by chain and the transmission rig be arranged on outside loft drier, the rotation direction of adjacent two layers transmission belt is contrary, that is: top layer transmission belt is from hopper one end to left movement, and second layer transmission belt moves right, third layer transmission belt, to left movement, is so analogized; Transmission belt and the same transmission rig of same direction of motion are in transmission connection;
The transmission belt top of bottom is provided with the microwave tube 21 for heating, the heat exchanger tube 17 for heating is provided with between other layer of transmission belt except bottom, described heat exchanger tube left end communicates with the air channel of secondary combustion and heat exchange chamber 13, and right-hand member communicates with circulation of tail gas airduct 19;
Described loft drier top is provided with multiple self-circulation calorifier 15 communicated with loft drier;
The moisture exhausting port at loft drier top communicates with the off gas treatment tank of loft drier outside, and described circulation of tail gas airduct 19 communicates with loft drier top layer transmission belt upper channel; Described loft drier surrounding establishes thermal insulation layer;
Described transmission belt adopts stainless material to make, and is provided with cylinder bottom transmission belt.
Claims (4)
1. a filter mud of sugar refinery microwave dehydration dry treatment process, is characterized in that: comprise the following steps:
1) predrainage
From the sugar mill mud mud discharging mouth erection conveying belt in sugar refinery
,be about 80% by the water ratio after vacuum suction filter, the sugar mill mud of sposh shape is delivered to filter mud dewatering unit opening for feed, push importing via screw-blade and carry out reducing squeezing, after about 15 minutes, obtain the fine grained chippings shape dehydration filter mud of water ratio 55% ~ 60%, discharge from the mud extraction conveying belt of filter mud dewatering unit;
2) filter mud preheating
The fine grained chippings shape dehydration filter mud obtained through step 1) process is imported high frequency furnace rapid heating 5 minutes, high frequency furnace cavity temperature 300-500 ° of C, destroys filter mud water clusters structure, obtain half dry filter mud of water ratio about 45%;
3) microwave dehydration
Will through step 2) half dry filter mud that obtains to import in filter mud microwave drier dehydration 10 minutes, obtains the dehydration filter mud of water ratio less than 20%.
2., for the dewatering drying device of a kind of filter mud of sugar refinery microwave dehydration dry treatment process according to claim 1, it is characterized in that: comprise filter mud dewatering unit, high frequency furnace and filter mud microwave drier;
The screw press mechanism that described filter mud dewatering unit comprises support (1) and is arranged on support, described screw press mechanism comprises the screw press bar (2) that level is installed, be enclosed in screen tube (4) and the plug-type shell (5) of screw press bar periphery successively, one end of screw press bar is in transmission connection by sprocket wheel (7) and transmission rig, the upper front end of screen tube establishes the opening for feed (3) communicated with screw press bar, mud mouth (9) is established in screen tube rear end, the bottom of screen tube establishes syrup to collect basin (10), mud mouth bottom sets out mud conveying belt (8), described mud mouth place is provided with pressure ring regulating mechanism (6).
3. the dewatering drying device of a kind of filter mud of sugar refinery microwave dehydration dry treatment process according to claim 2, it is characterized in that: described high frequency furnace comprises high frequency housing, coil and metal inductor high temperature, high frequency housing is for generation of high-frequency current, high-frequency current produces ultra-high speed rotatingfield via coil, metal inductor in magnetic field is rapidly heated to high temperature 300-500 degree, filter mud is heated to rapidly more than 120 degree, destroys its water clusters, make it easily enter follow-up microwave dehydration; The rated output of high frequency furnace is 30kw, and treatment capacity is 100 tons/day.
4. the dewatering drying device of a kind of filter mud of sugar refinery microwave dehydration dry treatment process according to claim 2, it is characterized in that: described filter mud microwave drier comprises combustion chamber (11), secondary combustion and heat exchange chamber (13) and loft drier (12), combustion chamber (11) with dry filter mud gasification combustion engine is arranged on loft drier (12) front portion outward, secondary combustion and heat exchange chamber (13) are arranged on the front end in loft drier (12), the escape pipe of the dry filter mud gasification combustion engine of combustion chamber (11) is connected with secondary combustion and heat exchange chamber (13), loft drier (12) tail end peripheral hardware circulation of tail gas airduct (19) and circulation of tail gas blower fan (20), the top of loft drier is provided with hopper (18) and moisture exhausting port (122), discharge port (22) is established bottom loft drier tail end,
Multi-layer transmission band (16) is horizontally installed with in described loft drier, each layer transmission belt left and right tip position staggers, that is: the corresponding hopper of top layer transmission belt right-hand member, the left end of second layer transmission belt grows the left end of top layer transmission belt, the right-hand member of third layer transmission belt grows the right-hand member of second layer transmission belt, so analogizes; The carriage direction end of lowest layer transmission belt is corresponding with the discharge port of bottom;
Described transmission belt is in transmission connection by chain and the transmission rig be arranged on outside loft drier, the rotation direction of adjacent two layers transmission belt is contrary, that is: top layer transmission belt is from hopper one end to left movement, and second layer transmission belt moves right, third layer transmission belt, to left movement, is so analogized; Transmission belt and the same transmission rig of same direction of motion are in transmission connection;
The transmission belt top of bottom is provided with the microwave tube (21) for heating, the heat exchanger tube (17) for heating is provided with between other layer of transmission belt except bottom, described heat exchanger tube left end communicates with the air channel of secondary combustion and heat exchange chamber (13), and right-hand member communicates with circulation of tail gas airduct (19);
Described loft drier top is provided with multiple self-circulation calorifier (15) communicated with loft drier;
The moisture exhausting port at loft drier top communicates with the off gas treatment tank of loft drier outside, and described circulation of tail gas airduct (19) communicates with loft drier top layer transmission belt upper channel; Described loft drier surrounding establishes thermal insulation layer;
Described transmission belt adopts stainless material to make, and is provided with cylinder bottom transmission belt.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510439551.2A CN105036511B (en) | 2015-07-23 | 2015-07-23 | Sugar refinery filter mud microwave dewatering and drying treatment process and dewatering and drying device |
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| CN201510439551.2A CN105036511B (en) | 2015-07-23 | 2015-07-23 | Sugar refinery filter mud microwave dewatering and drying treatment process and dewatering and drying device |
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| CN105036511B CN105036511B (en) | 2017-02-01 |
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Cited By (5)
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| CN105399302A (en) * | 2015-12-21 | 2016-03-16 | 广东金颢轩环境工程设备科技有限公司 | Deep sludge magnetization dehydration treatment method |
| CN106809866A (en) * | 2017-02-10 | 2017-06-09 | 山东星光生物科技有限公司 | A kind of sugar mill mud high-efficiency comprehensive utilization method and device |
| CN109231764A (en) * | 2018-10-30 | 2019-01-18 | 饶宾期 | Microwave hot air jet stream cooperates with desiccation apparatus |
| CN109682169A (en) * | 2018-12-25 | 2019-04-26 | 四川英诺环保设备有限公司 | A kind of paint slag drying means |
| CN111928270A (en) * | 2020-06-30 | 2020-11-13 | 广西国发能源科技有限公司 | Method for treating sugar refinery filter mud as steam power generation renewable fuel |
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| CN111928270A (en) * | 2020-06-30 | 2020-11-13 | 广西国发能源科技有限公司 | Method for treating sugar refinery filter mud as steam power generation renewable fuel |
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| CN105036511B (en) | 2017-02-01 |
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