CN116495949A - Automatic treatment device for municipal sludge - Google Patents
Automatic treatment device for municipal sludge Download PDFInfo
- Publication number
- CN116495949A CN116495949A CN202310346904.9A CN202310346904A CN116495949A CN 116495949 A CN116495949 A CN 116495949A CN 202310346904 A CN202310346904 A CN 202310346904A CN 116495949 A CN116495949 A CN 116495949A
- Authority
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- China
- Prior art keywords
- conveying channel
- crank
- scattering
- material lifting
- municipal sludge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 239000010802 sludge Substances 0.000 title claims abstract description 71
- 239000000463 material Substances 0.000 claims abstract description 76
- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 238000005520 cutting process Methods 0.000 claims abstract description 13
- 238000005507 spraying Methods 0.000 claims abstract description 12
- 239000011230 binding agent Substances 0.000 claims abstract description 9
- 239000003814 drug Substances 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims abstract description 6
- 230000007306 turnover Effects 0.000 claims abstract description 3
- 238000001125 extrusion Methods 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000011229 interlayer Substances 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 abstract description 7
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 238000010009 beating Methods 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000001035 drying Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005453 pelletization Methods 0.000 description 4
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229920000881 Modified starch Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/20—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
An automatic treatment device for municipal sludge comprises a conveying channel, a material lifting mechanism arranged at one side of the conveying channel, a medicine spraying mechanism arranged on the conveying channel, and a vertical cutting mechanism arranged at the output end of the conveying channel; the material lifting mechanism is used for transversely paving the sludge on the conveying channel and comprises a driving wheel and a material lifting plate, the driving wheel is used for driving the material lifting plate to turn over, the material lifting plate is rotationally connected to the base, and a screw rod used for driving the base to slide is arranged on the sliding table; spraying an adhesive on the sludge pile by the spraying mechanism; the bottom of the vertical cutting mechanism is provided with a granulating furnace. According to the invention, the material lifting mechanism is arranged at the side part of the conveying channel, the uniform piling operation is carried out on the conveying channel, the medicine spraying mechanism is arranged on the conveying channel, the binder is added, then the horizontally laid material is vertically cut downwards through the vertical cutting mechanism and enters the granulating furnace for granulating, and the sludge and the binder are combined in a uniform piling spray mode, so that the problem of bonding during material stirring can be solved.
Description
Technical Field
The invention relates to the field of municipal sludge treatment, in particular to an automatic municipal sludge treatment device.
Background
Along with the accelerated development of urban construction in China, the generation amount of urban domestic sludge is increased, and in order to well treat the domestic sludge, the domestic sludge is mainly piled up to be naturally air-dried, and is generally dried by a drying furnace if further processing is needed, and then is used for incineration or granulation;
generally, municipal sludge has a relatively low heavy metal content and a relatively high organic content compared to industrial sludge, and is therefore more suitable for processing derived products, such as pelletization, for use as fertilizer or nutrient soil. At present, no continuous integrated granulating equipment is available in the market, and most of the granulating equipment adopts independent equipment, and after the ingredients are conveyed, the granulating equipment is processed, such as a pair-roller granulator or a rotary kiln for manufacturing ceramsite. Or the middle is connected with the stirring device through the conveying line and then connected with the granulator for continuous production, but air-dried materials of sludge have certain water content, are easy to be gelatinous during stirring, and especially can be added with a binder during stirring, and the existing stirrer is not easy to discharge and is bonded with the device.
Disclosure of Invention
The invention aims to provide an automatic treatment device for municipal sludge.
In order to solve the technical problems, the automatic treatment device for the municipal sludge comprises a conveying channel and a material lifting mechanism arranged on one side of the conveying channel, wherein the conveying channel is also provided with a medicine spraying mechanism, and the output end of the conveying channel is provided with a vertical cutting mechanism;
the material lifting mechanism is used for transversely paving the sludge on the conveying channel, the paving direction is perpendicular to the conveying direction of the conveying channel, the material lifting mechanism comprises a driving wheel and a material lifting plate, the driving wheel is used for driving the material lifting plate to turn over, the material lifting plate is rotationally connected to the base, the base is slidably connected to the sliding table, a screw rod for driving the base to slide is arranged on the sliding table, and the sliding direction of the base is perpendicular to the conveying direction of the conveying channel;
the spraying mechanism sprays binder on the sludge piles paved on the conveying channel by the material lifting mechanism;
the bottom of the vertical cutting mechanism is provided with a granulating furnace.
Still further, the material lifting plate bottom both sides portion is equipped with first crossbeam and second crossbeam, and first crossbeam is close to in the drive wheel, and the middle part of first crossbeam is provided with the drive slot along self length direction, installs first crank on the drive wheel, and first crank end slip embedding is in the drive slot.
Still further, the middle part of second crossbeam is provided with the drive slot along self length direction, and sliding connection has the drive block in the drive slot, installs the spring in the drive slot, and the one end butt of spring is at the tip of drive slot, and the other end is connected at the drive block, rotates on the drive block to be connected with the second crank, and the second crank is connected with the pivot, and the pivot is kept away from the second cranked one end and is connected with the third crank, and the third cranked end is provided with the ware of clapping.
Further, the scattering device is a plate-shaped scattering plate, and scattering teeth are arranged on the bottom surface of the scattering plate.
Still further, the ware of clapping is cylindric roller of clapping, and annular array has the blade of beating on the roller of clapping, and the roller of clapping rotates with the third crank and is connected, and the tip fixed mounting of roller of clapping has drive gear, and one side of third crank is provided with fixed gear, and fixed gear is located the ascending swing route of roller of clapping, when the roller of clapping intersects with fixed gear in the swing, drive gear and fixed gear intermesh, and drive gear produces the rotation at the third crank when swinging, the drive is clapped the roller.
Still further, the granulator is enclosed by the inner shell and is established the inner chamber, rotates in the inner chamber and is connected with two rotors, and the top of inner shell is provided with the input port of inner chamber, and the bottom of inner shell is provided with the extrusion mouth, and the valve is all installed to input port and extrusion mouth, and the bottom of extrusion mouth is provided with the pelleter, and in the granulation process, the rotor extrudes the mud material from the extrusion mouth through relative rotation, utilizes the pelleter to cut the strip material of extrusion into the dress.
Still further, the rotor is three leaf rotor structure, and the interval between two rotors is adjustable through adjustment mechanism, and the inner casing is bilateral symmetry structure, including first arc section A that divides from top to bottom to and set up the second arc section B at both ends, when two rotors are located the closest intermesh, the outside outer peripheral face and the first arc section A contact of two rotors, and when two rotors are located the furthest, the outside peripheral face and the second arc section B contact of two rotors, extrude the mouth and be located the first arc section A of below.
Furthermore, the adjusting mechanism comprises a first input shaft and a second input shaft, the first input shaft and the second input shaft are meshed through a gear set to realize mutual reverse rotation, the first input shaft and the second input shaft are connected with an output shaft through a spline, the tail end of the output shaft is fixedly connected with a first bevel gear, the output shaft can slide along the spline, and torque is transmitted through the spline;
the device comprises a support, an output shaft, a first bevel gear, a second bevel gear, a rotor, a first shaft and a second shaft, wherein the support is arranged and is rotationally connected with the output shaft, the output shaft is limited by the support in sliding motion along the axial direction, one end of the support is rotationally connected with the second bevel gear, the first bevel gear is meshed with the second bevel gear, and the second bevel gear is fixedly connected with the axis of the rotor;
the support is connected with the linear driving source and is used for axially sliding along the output shaft so as to adjust the distance between the two rotors.
Further, a heating device is arranged in the granulating furnace.
Further, a one-way air port is formed in the end face of the valve of the input port, the conveying channel is provided with an isolation cover, the isolation cover is provided with an interlayer cavity, and the interlayer cavity is communicated with the one-way air port.
The automatic treatment device for the municipal sludge has the beneficial effects that:
through the material lifting mechanism setting lateral part at conveying channel, carry out even heap operation on conveying channel, transversely lay the mud material on conveying channel to set up on conveying channel and spout medicine mechanism and add the binder, then through perpendicular cutting mechanism with the material of horizontal shop down perpendicular cut get into the pelletization stove and pelletize, combine mud and binder through the mode of even heap spray, bonding problem when can solving the material stirring.
Drawings
The invention will be described in further detail with reference to the accompanying drawings and detailed description.
FIG. 1 is a schematic diagram of the overall structure of an automatic municipal sludge treatment device according to the invention;
FIG. 2 is a schematic diagram of a conveying channel structure of an automatic municipal sludge treatment device according to the invention;
FIG. 3 is a schematic view of a material lifting mechanism of an automatic municipal sludge treatment device according to the invention;
FIG. 4 is a schematic view of a driving part of a material lifting mechanism of an automatic municipal sludge treatment device according to the invention;
FIG. 5 is a schematic view of the structure of a beating and scattering roller of the automatic municipal sludge treatment device;
FIG. 6 is a schematic view of the structure of a granulating furnace of an automatic municipal sludge treatment device according to the invention;
FIG. 7 is a schematic diagram of a rotor structure of an automatic municipal sludge treatment apparatus according to the invention;
FIG. 8 is a schematic diagram of a rotor structure of an automatic municipal sludge treatment device according to the invention;
fig. 9 is a schematic structural view of an adjusting mechanism of an automatic treatment device for municipal sludge.
Description of the embodiments
The invention will be described in detail hereinafter with reference to the drawings in conjunction with embodiments. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.
Referring to fig. 1 and 2, an automatic treatment device for municipal sludge comprises a conveying channel 1 and a material lifting mechanism 2 arranged on one side of the conveying channel 1, wherein the material lifting mechanism 2 is positioned above the conveying channel 1, a medicine spraying mechanism 3 is further arranged on the conveying channel 1, and a vertical cutting mechanism 4 is arranged at the output tail end of the conveying channel 1;
the material lifting mechanism 2 is used for transversely paving sludge on the conveying channel 1, the paving direction is perpendicular to the conveying direction of the conveying channel 1, the material lifting mechanism 2 comprises a driving wheel 21 and a material lifting plate 29, the driving wheel 21 is used for driving the material lifting plate 29 to overturn, the material lifting plate 29 is rotationally connected to the base 231, the base 231 is slidably connected to the sliding table 22, a screw rod 23 for driving the base 231 to slide is arranged on the sliding table 22, and the sliding direction of the base 231 is perpendicular to the conveying direction of the conveying channel 1;
in practical application, the tail of the lifting blade 29 can be connected with a belt conveyor for conveying sludge through a hose, or a horizontal conveying belt is arranged at the tail of the lifting blade 29, and the belt conveyor for conveying sludge is arranged above the conveying belt to realize the butt joint of the lifting blade 29 and the sludge conveying. In addition, the upper end surface of the lifting plate 29 can be arranged in a step shape, so that layering property is better during lifting, and in addition, if the sludge with high viscosity is aimed at, the end part of the lifting plate 29 can be connected in a spring suspension manner, and vibration is generated during lifting.
The details can be adaptively modified according to the actual application scene. The material lifting mechanism 2 disclosed in the embodiment has the advantage that the sludge with a certain water content is subjected to the pile homogenizing operation on the conveying channel 1 in a material lifting turning mode. In the prior art, a refining plate is directly arranged on a conveying channel for refining, but for sludge with certain viscosity, if the sludge is adhered, blockage can be caused, or if the sludge contains larger caking, non-uniformity of a material pile can be caused. The material lifting mechanism 2 lifts materials from a certain height, so that adhesion is difficult to generate, and large-scale sludge can be scattered after falling under gravity.
In addition, traditional carry with throwing mechanism to some powder or granule material, for example to the transport of corn can use the winnowing machine, this kind of equipment adopts wind-force drive, throws out the material, and is better to the product effect of drying, but is unsuitable for mud. The applicant has devised the feeding mechanism 2 of the present embodiment to solve the problem.
In use, the material on the plate is thrown out by the swing of the lifting plate 29, and the front and back positions of the lifting plate 29 can be adjusted by the screw rod 23, so that the throwing position of the material is adjusted, as shown in fig. 3.
Further:
referring to fig. 3 and 4, a first beam 210 and a second beam 28 are respectively arranged at two sides of the bottom of the lifting plate 29, the first beam 210 is close to the driving wheel 21, a driving groove is formed in the middle of the first beam 210 along the length direction of the driving wheel, a first crank 211 is mounted on the driving wheel 21, and the tail end of the first crank 211 is slidably embedded in the driving groove;
as shown in fig. 4, the crank is driven, and the axis of the crank is offset from the rotation axis of the lifter plate 29, so that the lifter plate 29 has a quick return characteristic in movement, that is, has an acceleration shape when lifted up and a relatively stable speed when dropped. The structure can effectively lift out materials and stably receive the next batch of materials.
The middle part of second crossbeam 28 is provided with the drive slot along self length direction, and sliding connection has the drive block in the drive slot, installs spring 27 in the drive slot, and the one end butt of spring 27 is at the tip of drive slot, and the other end is connected at the drive block, rotates on the drive block and is connected with second crank 271, and second crank 271 is connected with the pivot, and the pivot is kept away from second crank's one end and is connected with third crank 25, and the end of third crank 25 is provided with the ware of clapping.
Referring to fig. 3 and 4, a crank mechanism is further provided on the second beam 28 to drive the swatter, and by providing the length of the spring 27 and the second crank 271, the third crank 25 is prevented from rotating 360 ° and limited to swing only by a certain extent.
It should be noted that, since the swing amplitude of the lifter plate 29 can be adjusted by the screw 23, and the swing amplitude of the beater is substantially determined, it is designed to avoid interference between the two when swinging in opposite directions. In another preferred embodiment, a screw may be provided on the mount of the third crank 25 to adjust the amplitude of the swing of the third crank 25, thereby creating an operative synergy. Such a functionally adaptive adjustment scheme should also be within the scope of the present embodiment.
A clapping device is arranged on the third crank 25, and the lifting plate 29 and the clapping device move in opposite directions during movement, so as to clap and scatter massive sludge. The structure is ingenious in that in practical application, the jaw-like crushing effect can be realized.
In addition, in practical application, in order to improve the effect, the position of the beater is arranged in the middle of the material lifting plate 29, or the position at the back of the beater is not considered if the material lifting plate 29 is made into a screen structure, because the screen structure does not block bulk materials too much, and if the screen structure is too far forward, the material lifting is blocked. Because of the high density of the bulk sludge, the bulk sludge is thrown higher when the material is thrown out, and is easier to collide with the beater. The loose sludge is not easy to be blocked by the upper clapping device because of low density, light weight and certain air resistance during throwing. This structure is best applied to the stepped lifter plate 29; the sludge is thrown down in a first stage, the large-scale sludge is scattered by a scattering device, falls to the next stage and is finally thrown to a conveying channel together;
it should be noted that, since the lifter plate 29 is in use, it is subjected to the action of the screw 23 to adjust the position, and cause the change of the lifter amplitude, as shown with reference to fig. 3. The offset distance is large at the near end, the material lifting amplitude is small at the far end, and the screw rod 23 is adjusted in a stepless way, so that the uniformity of material lifting and piling can be conveniently adjusted in practical application.
The effect of scattering of the throwing material also depends on the structural design of the scattering device:
the scattering device has two options, one is a plate-shaped scattering plate 24, and referring to fig. 3, the bottom surface of the scattering plate 24 is provided with scattering teeth; or directly called a sieve mesh-shaped structure, reduces the blocking of bulk materials and improves the beating and scattering effect of bulk materials.
The other is a cylindrical beat-and-scatter roller 241, as shown in fig. 5. The annular array on the beating and scattering roller 241 has the blade of beating and scattering, beating and scattering roller 241 and third crank 25 rotate to be connected, beating and scattering roller 241's tip fixed mounting has drive gear 242, one side of third crank 25 is provided with fixed gear 243, fixed gear 243 is located beating and scattering roller 241's ascending swing route, when beating and scattering roller 241 and fixed gear 243 intersect in the swing, drive gear 242 and fixed gear 243 intermesh, drive gear 242 is at third crank 25 wobbling, the rotation is produced to the drive beating and scattering roller 241. The roller type beating and scattering device has a good scattering effect on the mud adhered into the strip shape, and meanwhile, by arranging the fixed gear 243, the beating and scattering roller 241 can rotate during return stroke, so that the mud is prevented from being stagnated in the middle of the beating and scattering roller 241. If the swing amplitude of the swatter can be adjusted by changing the position of the third crank 25 as in the previous description, the position of the fixed gear 243 also needs to be adjusted to achieve cooperation.
The spraying mechanism 3 sprays binder on the sludge piles paved on the conveying channel 1 by the material lifting mechanism 2; the spraying mechanism 3 sprays the atomized medicines on the stockpile, and the adhesive can be starch glue (pregelatinized starch adhesive), which is an organic adhesive with little pollution, no heavy metal, good adhesiveness and small addition.
The bottom of the vertical cutting mechanism 4 is provided with a granulating furnace 6. The vertical cutting mechanism 4 vertically cuts the stack by driving a blade up and down to form strips, each falling down, in a manner similar to a cake, to quantitatively cut the material, including the binder and the sludge, into the pelletization furnace 6.
Referring to fig. 5 to 7, the granulating furnace 6 is provided with an inner cavity surrounded by an inner housing 64, two rotors 61 are rotatably connected in the inner cavity, an input port of the inner cavity is provided at the top of the inner housing 64, an extrusion port 62 is provided at the bottom of the inner housing 64, valves are mounted at both the input port and the extrusion port 62, a granulating blade 63 is provided at the bottom of the extrusion port 62, and in the granulating process, the rotors 61 extrude the sludge material from the extrusion port 62 by relative rotation, and the extruded strip-shaped material is cut into granules by the granulating blade 63. The rotors 61 are three-leaf rotor structures, the distance between the two rotors 61 is adjustable through an adjusting mechanism, the inner shell 64 is of a bilateral symmetry structure and comprises a first arc-shaped section A which is vertically divided and arranged, and a second arc-shaped section B which is arranged at two ends, when the two rotors 61 are positioned at the shortest distance and meshed with each other, the outermost peripheral surfaces of the two rotors 61 are in contact with the first arc-shaped section A, when the two rotors 61 are positioned at the farthest distance, the outermost peripheral surfaces of the two rotors 61 are in contact with the second arc-shaped section B, and the extruding outlet 62 is positioned on the first arc-shaped section A below.
A heating device is arranged in the granulating furnace 6;
the adjusting mechanism comprises a first input shaft 65 and a second input shaft 67, the first input shaft 65 and the second input shaft 67 are meshed through a gear set 66 to realize mutual reverse rotation, the first input shaft 65 and the second input shaft 67 are connected with an output shaft through a spline, the tail end of the output shaft is fixedly connected with a first bevel gear 69, the output shaft can slide along the spline, and torque is transmitted through the spline;
the support 68 is installed, the support 68 is rotationally connected with the output shaft, the sliding motion of the output shaft along the axial direction is limited by the support 68, one end of the support 68 is rotationally connected with the second bevel gear 610, the first bevel gear 69 is meshed with the second bevel gear 610, and the second bevel gear 610 is fixedly connected with the axle center of the rotor 61;
the bracket 68 is connected to a linear driving source such as a hydraulic cylinder, or a screw, for sliding axially along the output shaft, thereby adjusting the distance between the two rotors 61.
In this embodiment, since the sludge material input into the pelletization furnace 6 is not dried by the dryer, the water content of the input sludge is about 35%, usually, the sludge material is firstly dehydrated mechanically and then naturally piled and dried in the air, during which a turner is generally adopted for treatment, the water content of the sludge material can reach 30% -40%, in the process of this embodiment, the water content of the sludge material after the spraying treatment is kept at 40%, and the actual water content also has 5% fluctuation. The automatic treatment device of the embodiment forms a complete sludge treatment system, the water content of the final granulation product is kept at 20%, and the product can be used for industrial incineration or fertilizer or nutrient soil doping.
Therefore, the granulating furnace 6 needs to be provided with a heating device, a jacket can be arranged in the granulating furnace 6, heating can be carried out through heat conduction oil, and an electric heater can also be directly arranged on the inner wall.
To sum up, the sludge material is subjected to two process steps in the pelletising oven 6, one being further drying and the other being pelletising.
Referring to fig. 7 and 8, in the present embodiment, a structure of two three-bladed rotors is adopted, and in the drying stage, the positions of the two rotors are adjusted, and the two rotors are kept in the state of fig. 8, and the three-bladed rotors are rotated to perform stirring and stirring, so that the three-bladed rotors are dried rapidly. Referring to fig. 8, two rotors 61 are far away from each other, and are attached to the second arc section B, so that materials on two sides are turned over to the middle during rotation, and then pushed to two sides to form a cycle, so that not only can quick drying be realized, but also the materials can be uniformly mixed.
It should be noted that, in the drying process, the two rotors rotate in opposite directions, and when the two rotors rotate upwards, i.e. the left rotor Bian Zhuaizi rotates clockwise in the drawing, the right rotor rotates anticlockwise, so that the internal air field is compressed upwards. In this embodiment, the feeding is performed in a "stepwise" manner, that is, the vertical cutting mechanism 4 is matched with the conveying channel 1 to quantitatively convey the material to the granulating furnace 6. After the material conveying is finished, a valve is arranged at the top of the granulating furnace 6 and is closed, a unidirectional air outlet is arranged on the valve, when the internal heating air pressure is increased, the air outlet is pushed open under the pressurizing pushing of a rotor, and the hot air with water vapor in the interior is discharged. And meanwhile, an isolation cover 5 is arranged on the periphery of the conveying channel, an interlayer cavity is arranged on the isolation cover 5, hot air is discharged into the interlayer cavity, and materials on the conveying channel are preheated.
In the granulating step, the two rotors are adjusted to the state shown in fig. 7, at this time, the rotors are attached to the first arc section a, the two rotors are meshed with each other, when the left rotor Bian Zhuaizi rotates clockwise, the right rotor rotates anticlockwise, the sludge flowers on the side slide to the first arc section a below, the two rotors face to each other, the sludge is extruded, the extruding outlet 62 is opened, the sludge is extruded in a strip shape under the action of extrusion and internal air pressure, and a granular product is formed under the cutting of the lower granulating cutter 63. In the process, part of the residual water in the sludge can be extruded out of the surface under the influence of extrusion, temperature and air pressure, so that hot air drying and blowing can be carried out at a discharge hole, and the drying can be kept.
Of course, the above description is not intended to limit the invention, but rather the invention is not limited to the above examples, and variations, modifications, additions or substitutions within the spirit and scope of the invention will be within the scope of the invention.
Claims (10)
1. An automatic processing apparatus of municipal sludge, its characterized in that: comprises a conveying channel (1) and a material lifting mechanism (2) arranged at one side of the conveying channel (1), wherein the conveying channel (1) is also provided with a medicine spraying mechanism (3), and the output end of the conveying channel (1) is provided with a vertical cutting mechanism (4);
the material lifting mechanism (2) is used for transversely paving sludge on the conveying channel (1), the paving direction is perpendicular to the conveying direction of the conveying channel (1), the material lifting mechanism (2) comprises a driving wheel (21) and a material lifting plate (29), the driving wheel (21) is used for driving the material lifting plate (29) to turn over, the material lifting plate (29) is rotationally connected to the base (231), the base (231) is slidably connected to the sliding table (22), a screw rod (23) for driving the base (231) to slide is arranged on the sliding table (22), and the sliding direction of the base (231) is perpendicular to the conveying direction of the conveying channel (1);
the spraying mechanism (3) sprays binder on the sludge piles paved on the conveying channel (1) by the material lifting mechanism (2);
the bottom of the vertical cutting mechanism (4) is provided with a granulating furnace (6).
2. An automatic treatment device for municipal sludge according to claim 1, wherein: the two sides of the bottom of the lifting blade (29) are respectively provided with a first cross beam (210) and a second cross beam (28), the first cross beam (210) is close to the driving wheel (21), the middle part of the first cross beam (210) is provided with a driving groove along the length direction of the driving wheel, the driving wheel (21) is provided with a first crank (211), and the tail end of the first crank (211) is slidably embedded in the driving groove.
3. An automatic treatment device for municipal sludge according to claim 2, wherein: the middle part of second crossbeam (28) is provided with the drive slot along self length direction, and sliding connection has the drive block in the drive slot, installs spring (27) in the drive slot, and the one end butt of spring (27) is at the tip of drive slot, and the other end is connected at the drive block, rotates on the drive block and is connected with second crank (271), and second crank (271) are connected with the pivot, and the pivot is kept away from second crank's one end and is connected with third crank (25), and the end of third crank (25) is provided with the ware of clapping.
4. An automatic treatment device for municipal sludge according to claim 3, wherein: the scattering device is a plate-shaped scattering plate (24), and scattering teeth are arranged on the bottom surface of the scattering plate (24).
5. An automatic municipal sludge treatment apparatus according to claim 4, wherein: the scattering device is a cylindrical scattering roller (241), a scattering blade is annularly arranged on the scattering roller (241), the scattering roller (241) is rotationally connected with a third crank (25), a driving gear (242) is fixedly arranged at the end part of the scattering roller (241), a fixed gear (243) is arranged on one side of the third crank (25), the fixed gear (243) is located on an upward swinging path of the scattering roller (241), when the scattering roller (241) is intersected with the fixed gear (243) in swinging, the driving gear (242) is meshed with the fixed gear (243), and the driving gear (242) drives the scattering roller (241) to rotate when the third crank (25) swings.
6. An automatic municipal sludge treatment apparatus according to claim 5, wherein: the granulating furnace (6) is enclosed by inner shell (64) and is established the inner chamber, rotates in the inner chamber and is connected with two rotors (61), and the top of inner shell (64) is provided with the input port of inner chamber, and the bottom of inner shell (64) is provided with extrusion mouth (62), and the valve is all installed with extrusion mouth (62) to input port, and the bottom of extrusion mouth (62) is provided with grain cutter (63), and in the granulating process, rotor (61) extrude mud material from extrusion mouth (62) through relative rotation, utilizes grain cutter (63) to cut the strip material dress of extruding into grains.
7. An automatic municipal sludge treatment apparatus according to claim 6, wherein: the rotor (61) is three-leaf rotor structure, and the interval between two rotors (61) is adjustable through adjustment mechanism, and interior casing (64) are bilateral symmetry structure, including first arc section A that divides from top to bottom to and set up at the second arc section B at both ends, when two rotors (61) are located the closest intermeshing of distance, the outside outer peripheral face and the first arc section A contact of two rotors (61), when two rotors (61) are located the furthest, the outside peripheral face and the contact of second arc section B of two rotors (61), extrusion mouth (62) are located the first arc section A of below.
8. An automatic municipal sludge treatment apparatus according to claim 7, wherein: the adjusting mechanism comprises a first input shaft (65) and a second input shaft (67), the first input shaft (65) and the second input shaft (67) are meshed through a gear set (66) to realize mutual reverse rotation, the first input shaft (65) and the second input shaft (67) are connected with an output shaft through a spline, the tail end of the output shaft is fixedly connected with a first bevel gear (69), and the output shaft can slide along the spline and transmit torque through the spline;
the device is provided with a bracket (68), the bracket (68) is rotationally connected with the output shaft, the sliding motion of the output shaft along the axial direction is limited by the bracket (68), one end of the bracket (68) is rotationally connected with a second bevel gear (610), the first bevel gear (69) is meshed with the second bevel gear (610), and the second bevel gear (610) is fixedly connected with the axle center of the rotor (61);
the bracket (68) is connected with a linear driving source and is used for sliding along the axial direction of the output shaft so as to adjust the distance between the two rotors (61).
9. An automatic municipal sludge treatment apparatus according to claim 8, wherein: a heating device is arranged in the granulating furnace (6).
10. An automatic treatment device for municipal sludge according to claim 9, wherein: the end face of the valve of the input port is provided with a one-way air port, the conveying channel (1) is provided with an isolation cover (5), the isolation cover (5) is provided with an interlayer cavity, and the interlayer cavity is communicated with the one-way air port.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310346904.9A CN116495949B (en) | 2023-04-03 | 2023-04-03 | Automatic treatment device for municipal sludge |
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| CN202310346904.9A CN116495949B (en) | 2023-04-03 | 2023-04-03 | Automatic treatment device for municipal sludge |
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| CN116495949B CN116495949B (en) | 2024-01-16 |
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| CN116495949B (en) | 2024-01-16 |
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