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WO2018153198A1 - 一种垃圾风干处理系统及方法 - Google Patents

一种垃圾风干处理系统及方法 Download PDF

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Publication number
WO2018153198A1
WO2018153198A1 PCT/CN2018/073745 CN2018073745W WO2018153198A1 WO 2018153198 A1 WO2018153198 A1 WO 2018153198A1 CN 2018073745 W CN2018073745 W CN 2018073745W WO 2018153198 A1 WO2018153198 A1 WO 2018153198A1
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WO
WIPO (PCT)
Prior art keywords
air
garbage
distribution
drying cylinder
hot
Prior art date
Application number
PCT/CN2018/073745
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English (en)
French (fr)
Inventor
石宏
李天庆
高明超
Original Assignee
北京中技圣火环保科技有限公司
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Application filed by 北京中技圣火环保科技有限公司 filed Critical 北京中技圣火环保科技有限公司
Priority to DE112018000501.1T priority Critical patent/DE112018000501T5/de
Publication of WO2018153198A1 publication Critical patent/WO2018153198A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/08—Humidity
    • F26B21/086—Humidity by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44—Details; Accessories
    • F23G5/46—Recuperation of heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
    • F26B11/028—Arrangements for the supply or exhaust of gaseous drying medium for direct heat transfer, e.g. perforated tubes, annular passages, burner arrangements, dust separation, combined direct and indirect heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
    • F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
    • F26B11/0463—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall
    • F26B11/0477—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum
    • F26B11/0481—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum the elements having a screw- or auger-like shape, or form screw- or auger-like channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/10—Drying by heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00—Waste heat recuperation
    • F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/04—Garbage

Definitions

  • the invention relates to the technical field of garbage pretreatment, in particular to a garbage air drying treatment system and method.
  • the per capita annual output of urban domestic garbage in China has reached 500 kg, and it is growing at an annual rate of 8% to 10%.
  • the large increase in total waste was mainly due to the size of the city, the number of cities and the increase in urban population.
  • the municipal solid waste treatment facility is an important municipal infrastructure of the city and an important part of the urban public environmental sanitation system. It is related to the degree of civilization of a city and the vital interests of the broad masses of the people.
  • China's investment in domestic garbage treatment facilities has increased year by year, the efficiency of harmless treatment of domestic garbage is still very low.
  • the lack of harmless treatment technologies and facilities has become a social problem that pollutes the environment and restricts development.
  • the present invention is to create a new garbage air-drying treatment system and method, which utilizes high-temperature exhaust gas to dehydrate the waste materials, so that the air-dried garbage can be easily piled up, improve the environment, and improve the efficiency of garbage power generation. .
  • the technical problem to be solved by the present invention is to provide a garbage air-drying treatment system which utilizes high-temperature exhaust gas to dehydrate the waste raw materials, thereby solving the problems in the existing garbage disposal process.
  • the present invention provides a garbage air drying processing system, comprising a low temperature dry air preparing device and a garbage air drying processing device connected thereto,
  • the garbage air drying treatment device includes a first garbage air drying cylinder, and a first spiral type turning plate is disposed on an inner wall of the first garbage air drying cylinder, and the first garbage air drying cylinder rotates under the action of a motor and a gear.
  • the first spiral type turning plate is turned over under the rotation of the first garbage air drying cylinder and pushes the garbage movement, and the air inlet of the first garbage air drying cylinder is connected to the low temperature dry air preparing device, and the low temperature dry
  • the low-temperature dry wind prepared by the wind preparation device is blown in the axial direction of the first garbage air drying cylinder, and the running direction of the low-temperature dry air is the same as the advancement direction of the garbage.
  • the garbage air drying treatment device further includes a second garbage air drying cylinder, and the garbage feeding port of the second garbage air drying cylinder is connected to the garbage discharging port of the first garbage air drying cylinder, a second spiral type turning plate is disposed on the inner wall of the second garbage air drying cylinder, the second garbage air drying cylinder is rotated by the motor and the gear, and the second spiral type turning board is in the second garbage
  • the rotation of the air drying cylinder reverses and advances the movement of the garbage
  • the air inlet of the second garbage air drying cylinder is connected to the low temperature dry air preparing device, and the running direction of the low temperature dry air in the second garbage air drying cylinder and the garbage therein The direction of advancement is reversed.
  • the second garbage air drying cylinder is disposed in parallel below the first garbage air drying cylinder, wherein the first garbage air drying cylinder and the second garbage air drying cylinder have the same running direction of the low temperature dry air, and the first garbage air drying The garbage in the drum and the second garbage drying drum are in the opposite direction.
  • the low-temperature dry air preparation device comprises a cold and hot air exchange mechanism and a wind distribution mechanism
  • the hot and cold air exchange mechanism includes an outer casing and a cold air duct disposed inside the outer casing, the outer casing including a cold air inlet and a cold air outlet connected to the cold air duct, and a side disposed on the outer casing side a hot air inlet and a hot air outlet on the wall, the hot air inlet and the hot air outlet communicating with a hot air passage between the outer casing and the outer wall of the cold air duct, the hot air outlet and the first garbage
  • the air drying cylinder is connected to the air inlet of the second garbage air drying cylinder, and the first condensed water outlet is provided at a lower portion of the outer casing;
  • the air distribution mechanism includes a distribution air duct connected to the cold air outlet on the outer casing, the air distribution duct is provided with an induced draft fan, and the other end of the air distribution duct is connected to the hot air inlet The hot air is supplied to the wind pipe.
  • a plurality of cold air ducts arranged in parallel are arranged inside the outer casing.
  • the garbage air drying treatment system further includes a cooling exchanger disposed on the air distribution duct, the cooling exchanger including a distribution air cooling passage and a cold air supply passage adjacent to each other, the air distribution cooling passage a ventilation air inlet and a distribution air outlet of the cooling exchanger, the cold air supply passage communicating with a supplement air inlet and a supplement air outlet of the cooling exchanger, the air inlet and outlet The cold air inlet is connected, and the lower part of the cooling exchanger is provided with a second condensate water outlet.
  • the cooling exchanger including a distribution air cooling passage and a cold air supply passage adjacent to each other, the air distribution cooling passage a ventilation air inlet and a distribution air outlet of the cooling exchanger, the cold air supply passage communicating with a supplement air inlet and a supplement air outlet of the cooling exchanger, the air inlet and outlet The cold air inlet is connected, and the lower part of the cooling exchanger is provided with a second condensate water outlet.
  • the cooling exchanger employs a plate heat exchanger structure.
  • the air distribution air outlet is connected to the first air distribution duct and the second air distribution duct, and the other ends of the first air distribution duct and the second air distribution duct are respectively connected to the first of the hot air supply ducts At the air distribution port and the second air distribution port.
  • a hot air supply duct in front of the hot air inlet is further provided with a distributor, a hot box is provided at the hot air outlet, and a connecting pipe is further arranged between the mixing box and the distributor.
  • a third air distribution port is disposed on the connecting pipe, and a third air distribution pipe is connected between the third air distribution port and the air distribution air outlet, and the air outlet of the mixing box and the first garbage air dryer and the first The air inlets of the two garbage air dryers are connected.
  • first air distribution duct, the second air distribution duct and the third air distribution duct are provided with an induced draft fan, and the induced draft fan is respectively driven by the speed reducing motor.
  • the invention also provides a garbage air drying processing method using the above-mentioned garbage air drying processing system, the method comprising the following steps:
  • the hot air source enters from the hot air supply duct, and the air distribution from the first air distribution duct and the second air distribution duct is respectively disposed at the first air distribution port and the second air distribution port, And then entering the hot and cold air exchange mechanism, and then dehydrating is discharged from the hot air outlet;
  • the natural wind enters from the supplementary air inlet, and after passing through the cold air supply passage of the cooling exchanger, the wind is supplemented
  • the air outlet is discharged into the cold air inlet, and then enters the cold air duct in the cold and hot air exchange mechanism, and then discharged from the cold air outlet to enter the air inlet of the cooling exchanger, and the cooling exchange is performed.
  • the air distribution cooling passage of the device is discharged from the air distribution air outlet into the first air distribution duct and the second air distribution duct;
  • the low-temperature dry air obtained by the step (1) is subjected to air-drying treatment of the garbage raw material through the garbage air-drying treatment device to obtain dry garbage;
  • the running direction of the low-temperature dry air in the first garbage air-drying cylinder is the same as the direction in which the garbage is propelled, and the running direction of the low-temperature dry air in the second garbage air-drying cylinder is opposite to the direction in which the garbage is propelled.
  • step (1) of the garbage air drying treatment method further comprises:
  • Dry air discharged from the hot air outlet enters the mixing tank, and a distribution air discharged from the third air distribution duct at the third air distribution port also enters the mixing box, the dry The wind and the distribution air are mixed in the mixing tank, and the prepared low-temperature dry air is discharged.
  • the ratio of the hot air to the distribution air at the first air distribution port is 1:1 to 1.5, and the ratio of the hot air to the distribution air at the second air distribution port is 1:2 to 2.7.
  • the ratio of the hot air to the distribution air at the three air distribution ports is 1:2.5 to 3.5.
  • the hot air source is a hot air having a temperature of more than 120 ° C and a humidity of 30 to 40%, and the obtained low temperature dry air is a temperature of 45 to 75 ° C and a humidity of 8 to 15%;
  • the garbage raw material used in the step (2) is wet garbage having a water content of more than 45%, and the moisture content of the obtained dry garbage is 8 to 15%.
  • the present invention has at least the following advantages:
  • the invention utilizes the rotation of the garbage air-drying cylinder to drive the garbage to turn, and uses the low-temperature dry air blown in the axial direction to take away the water in the garbage, so that the air-drying efficiency is remarkable, which is beneficial to garbage storage, improvement of the garbage ground environment, and improvement of the subsequent garbage.
  • the invention can further improve the air drying effect of the final garbage by utilizing two garbage air drying cylinders arranged in parallel in the upper and lower directions, in particular, using the working principle of the low temperature dry air running direction in the second garbage air drying cylinder opposite to the garbage pushing direction.
  • the invention removes the moisture in the hot air source by using the principle of moisture condensation after the hot air source is cooled by the hot and cold air exchange mechanism, and is also beneficial to dispose different proportions of cold air in the hot air source, so that the hot air source is prepared to be qualified. Low-temperature dry air for use in subsequent air-drying treatment.
  • the present invention further removes the moisture in the air supply and distribution by providing a cooling exchanger, so that the air distribution mixed into the hot air source is dry wind, and further facilitates the preparation of low temperature dry air.
  • the invention also provides three air distribution pipes and three air distribution ports, so that the ratio of hot and cold air can be flexibly adjusted, which is beneficial to the control of the temperature and humidity of the finally prepared low temperature dry air, and improves the garbage air drying treatment system. Accuracy.
  • the garbage air drying treatment system of the invention has a simple overall structure, and the daily garbage disposal amount can reach 10,000 tons, which is highly efficient and environmentally friendly, and is favorable for promotion.
  • FIG. 1 is a schematic view showing the overall structure of a garbage air drying treatment system of the present invention.
  • FIG. 2 is a schematic view showing the structure of a low-temperature dry air preparing device of the present invention.
  • Figure 3 is a schematic cross-sectional view showing the inside of the cold and hot air exchange mechanism of the present invention.
  • Fig. 4 is a schematic view showing the structure of a garbage air-drying apparatus of the present invention.
  • Figure 5 is a schematic transverse cross-sectional view of the garbage drying drum of the present invention.
  • the garbage air drying treatment system of the present invention comprises a low temperature dry air preparation device 100 and a garbage air drying treatment device 200 connected thereto.
  • the low temperature dry air production apparatus 100 includes a hot and cold air exchange mechanism 11 and a wind distribution mechanism.
  • the hot and cold air exchange mechanism 11 includes an outer casing 20 and a cold air duct 21 disposed inside the outer casing 20, the outer casing 20 including a cold air inlet 3 and a cold air outlet 4 communicating with the cold air duct 21, and a hot air inlet 17 and a hot air outlet (on the back of the cold and hot air exchange mechanism 11, not shown) on the side wall of the outer casing 20, the hot air inlet 17 and the hot air outlet and the outer casing 20 and cold air
  • the hot air passage 22 between the outer side walls of the duct 21 communicates with the first condensate water outlet 13 at the lower portion of the outer casing 20.
  • the outer casing 20 is provided with a plurality of cold air ducts 21 arranged in parallel to improve the contact surface of the hot and cold air, as shown in FIG.
  • the air distribution mechanism includes a distribution air duct connected to the cold air outlet 4 on the outer casing 20, and the air distribution duct is provided with an induced draft fan, and the other end of the air distribution duct is connected to the hot air before the hot air inlet 17 On the air supply duct 15.
  • the cold air enters the cold air duct 21 from the cold air inlet port 3 under the action of the induced draft fan
  • the hot air source enters the hot air passage 22 from the hot air supply duct 15 through the hot air inlet 17 into the hot air passage 22 inside the cold and hot air exchange mechanism, and the hot air is
  • the water is condensed and formed into water, and the condensed water flows out from the first condensed water outlet 13 to remove the moisture in the hot air source; and the cold air is discharged from the cold air outlet 4 After being taken out, it is introduced into the hot air supply duct 15 through the air distribution duct to realize the hot and cold air distribution to achieve the purpose of reducing the temperature of the hot air source.
  • the low-temperature dry air preparation device 100 further includes a cooling exchanger 12 disposed on the air distribution duct to facilitate further cooling and dehydration of the cold air discharged from the cold air outlet 4. So that the distribution air in the hot air supply duct is dry wind.
  • the cooling exchanger 12 adopts a plate heat exchanger structure, which includes a distribution air cooling passage and a cold air supply passage adjacent to the air distribution cooling passage, and the air distribution air inlet 5 of the cooling exchanger 12 and The air distribution air outlet 6 communicates with the supplementary air inlet 1 and the supplementary air outlet 2 of the cooling exchanger 12, and the supplementary air outlet 2 is connected to the cold air inlet 3, and the cooling exchange is performed.
  • the second condensate water outlet 18 is provided at the lower portion of the device 12.
  • the air distribution air outlet 6 is connected to the first air distribution duct and the second air distribution duct, and the other ends of the first air distribution duct and the second air distribution duct are respectively connected to the first air distribution duct 15
  • the tuyere 7 and the second air distribution port 8 are arranged such that the proportion of the air distribution through the different air distribution ports is favorable for the hot air cooling and the temperature adjustment is convenient and controllable.
  • the hot air supply duct 15 in front of the hot air inlet 17 is further provided with a distributor 16 at which a mixing tank 19 is provided, the mixing tank 19 The exit is the final low temperature dry air outlet 10 .
  • a connecting pipe is further disposed between the mixing box 19 and the distributor 16, and the third air distribution port 9 is disposed on the connecting pipe, and the third air distribution port 9 and the air distribution air outlet 6 are connected to the third air distribution pipe.
  • the first air distribution duct, the second air distribution duct and the third air distribution duct are distributed with an induced draft fan, and the induced draft fan is respectively driven by the speed reducing motor, which is beneficial to control different hot and cold air distribution at different air distribution ports. Wind ratio.
  • the hot air source in the low-temperature dry air preparation device may be a high-temperature exhaust gas generated by a garbage incinerator or a pyrolysis gasification furnace, and the cold air source adopts natural wind, and can realize a hot air source with a temperature of more than 120 ° C and a humidity of 30 to 40%.
  • the cooling and dehydration treatment finally produces a low-temperature dry air having a temperature of 45 to 75 ° C and a humidity of 8 to 15%, and the prepared low-temperature dry air is subjected to air-drying garbage in a garbage air-drying treatment device.
  • the cold and hot air exchange mechanism 11, the distributor 16 and the mixing tank 19 on the hot air supply duct, and the cooling exchanger 12 are vertically stacked by the support platform 14.
  • the arrangement, as shown in Fig. 2, has reasonable space utilization, compact structure and small occupied area.
  • the garbage air drying treatment device 200 includes a first garbage air drying cylinder 30.
  • the inner wall of the first garbage air drying cylinder 30 is provided with a first spiral type turning plate 40, and the first garbage air drying cylinder 30 is Rotating under the action of the motor and the gear, the first spiral type turning plate 40 is turned over under the rotation of the first garbage air drying cylinder 30 and pushes the garbage movement, for example, the garbage enters the first garbage drying cylinder 30 from the feeding port 33, The discharge of the first refuse drying drum 30 is advanced toward its discharge port 34 (as in the direction of the double arrow in Fig. 4).
  • the air inlet 32 of the first garbage air drying cylinder 30 is connected to the low temperature dry air outlet 10 of the low temperature dry air preparation device 100, and the low temperature dry air produced by the low temperature dry air preparation device 100 is along the first garbage air drying cylinder 30 is blown out in the axial direction (as in the direction of the single arrow in Fig. 4), and the running direction of the low-temperature dry wind is the same as the direction in which the garbage is propelled.
  • the garbage air drying treatment device 200 further includes a second garbage air drying cylinder 31, and the garbage feeding port 35 of the second garbage air drying cylinder 31 is connected to the garbage discharging port 34 of the first garbage air drying cylinder 30, A second spiral type turning plate is disposed on the inner wall of the second garbage drying drum 31.
  • the second garbage drying drum 31 rotates under the action of a motor and a gear, and the second spiral type turning plate is dried in the second garbage.
  • the rotation of the drum 31 reverses and advances the movement of the garbage, for example, the garbage enters the second garbage drying drum 31 from the garbage inlet 35, and is advanced to the garbage discharge port 37 under the rotation of the second garbage drying drum 31 (if attached) Figure 4 double arrow direction).
  • the air inlet of the second garbage air drying cylinder 31 and the air inlet of the first garbage air drying cylinder 30 are connected to the low temperature dry air outlet 10 of the low temperature dry air preparation device 100 on the same side, and the second garbage air drying cylinder 31
  • the running direction of the medium-low temperature dry wind (as in the direction of the single arrow in Fig. 4) is opposite to the direction in which the garbage is propelled, which further enhances the removal of moisture in the garbage and makes the obtained garbage dry.
  • the edge of the spiral type rewinding plate in the first garbage air drying cylinder and the second garbage air drying cylinder is provided with a folded edge 41, which increases the contact area between the garbage and the low temperature dry air, and improves the garbage dewatering efficiency, as shown in the attached drawing. 5 is shown.
  • the second garbage air drying cylinder 31 is disposed below the first garbage air drying cylinder 30, and the two are arranged in parallel with each other by the fixing bracket 38.
  • the first garbage air drying cylinder 30 and the second garbage air drying cylinder 31 have the same running direction of the low-temperature dry air, and the moisture-absorbing gas that has absorbed the moisture in the garbage from the first garbage air drying cylinder 30 and the second garbage air drying cylinder 31 is The gas discharge port 36 is discharged.
  • the garbage in the first garbage air drying cylinder 30 and the second garbage air drying cylinder 31 are oppositely propelled in the opposite direction. After the garbage enters from the feeding port 33, the first garbage air drying cylinder 30 and the second garbage air drying cylinder 31 are sequentially discharged from the garbage.
  • the mouth 37 is discharged.
  • the garbage air drying treatment system further includes a garbage pretreatment pulverizing device and a garbage feeding device.
  • the garbage pretreatment pulverizing device is used for bag breaking, sorting and pulverizing treatment of garbage;
  • the garbage feeding device comprises a garbage conveying mechanism 39, and an inlet of the garbage conveying mechanism 39 is connected with an outlet of the garbage pretreatment pulverizing device,
  • the outlet of the garbage transfer mechanism 39 is connected to the feed port 33 of the first garbage drying drum 30.
  • the garbage air drying treatment method applying the above garbage air drying treatment system comprises the following steps:
  • the low-temperature dry air is prepared by the low-temperature dry air preparation device.
  • the hot air source enters from the hot air supply duct 15, and the distribution air discharged from the first air distribution duct and the second air distribution duct is respectively disposed at the first air distribution port 7 and the second air distribution port 8, and then After entering the hot and cold air exchange mechanism 11, the dehydration is discharged from the hot air outlet; the natural wind enters from the supplementary air inlet 1, passes through the cold air supply passage of the cooling exchanger 12, and is discharged from the supplementary air outlet 2 Entering the cold air inlet 3, then entering the cold air duct in the cold and hot air exchange mechanism 11, and discharging from the cold air outlet 4 to enter the air distribution air inlet 5 of the cooling exchanger 12, passing through the cooling exchanger 12 After the air distribution cooling passage is exhausted from the air distribution air outlet 6, the first air distribution duct and the second air distribution duct are discharged.
  • the dry air discharged from the hot air outlet port enters the mixing box 19, and the third air distribution port 9 is fitted with the third air distribution port
  • the distribution air discharged from the branch pipe also enters the mixing tank 19, and the dry air and the distribution air are mixed in the mixing tank 19 to discharge the finally produced low-temperature dry air.
  • the specific ratio of hot and cold air distribution is: the ratio of the hot air to the distribution air at the first air distribution port is 1:1 to 1.5, and the ratio of the hot air to the distribution air at the second air distribution port is 1:2 to 2.7.
  • the ratio of the hot air to the distribution air at the third air distribution port is 1:2.5 to 3.5.
  • the running direction of the low-temperature dry air in the first garbage air drying cylinder 30 is the same as the direction in which the garbage is propelled, and the running direction of the low-temperature dry air in the second garbage air drying cylinder 31 is opposite to the direction in which the garbage is pushed.
  • the invention utilizes a low-temperature air-drying preparation device to introduce a high-temperature exhaust gas, adjusts the natural wind, cools the high-temperature exhaust gas, and removes the moisture in the natural wind and the high-temperature exhaust gas to realize the preparation of the low-temperature dry wind, and also passes the low-temperature dry wind.
  • the dewatering and drying of the garbage in the garbage air-drying cylinder can realize the air-drying treatment of the garbage, and can realize the air-drying treatment of the wet garbage having a water content of more than 45%, and finally obtain the dry garbage having a water content of 8 to 15%.
  • the garbage air drying treatment system of the invention can be used for air-drying treatment of high-humidity garbage such as fresh domestic garbage, medical garbage, old garbage or sludge, and the high-temperature exhaust gas discharged from the incinerator is used as a hot air source, so that the waste heat energy is recycled and utilized. Saving energy, it can realize the dehydration of fresh garbage on the spot, do not stack alcoholization, do not produce bad odor, do not precipitate leachate, reduce the treatment of landfill leachate, improve the working environment of waste treatment plant, dry garbage is not only convenient for storage Transportation, and the landfill after drying and disinfection can be backfilled with garbage pits, which can completely solve the hidden dangers of water and air pollution, and save energy and protect the environment.
  • high-humidity garbage such as fresh domestic garbage, medical garbage, old garbage or sludge
  • the high-temperature exhaust gas discharged from the incinerator is used as a hot air source, so that the waste heat energy is recycled and utilized. Saving energy, it can realize the

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Processing Of Solid Wastes (AREA)
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Abstract

一种垃圾风干处理系统及垃圾风干处理系统的处理方法，其中的处理系统包括低温干风制取装置（100）和与其连接的垃圾风干处理装置（200）。垃圾风干处理装置（200）包括第一垃圾风干筒（30），其内壁上设有第一螺旋式翻料板（40），该第一螺旋式翻料板（40）在第一垃圾风干筒（30）的旋转下翻转并推进垃圾移动，该第一垃圾风干筒（30）的进风口（32）与低温干风制取装置（100）相连，低温干风沿第一垃圾风干筒（30）轴向方向吹出，低温干风的运行方向与垃圾的推进方向相同。垃圾风干处理装置（200）还包括第二垃圾风干筒（31），在第二垃圾风干筒（31）中低温干风的运行方向与其中的垃圾的推进方向相反。该处理方法利用高温尾气为热风源，自然风为补风制得低温干风，低温干风对垃圾脱水风干，既利于存放运输又提高了垃圾的热解效率。

Description

一种垃圾风干处理系统及方法 技术领域
本发明涉及垃圾预处理技术领域，特别是涉及一种垃圾风干处理系统及方法。
背景技术
我国城市生活垃圾人均年产量己达到500公斤左右，而且每年以8％至10％的速度增长。垃圾总量大幅度增加主要是由于城市规模、城市数量和城市人口的增加所造成的。城市生活垃圾处理设施是城市重要的市政基础设施，是城市公共环境卫生体系的重要组成部分，关系到一个城市的文明程度和广大人民群众的切身利益。我国用于生活垃圾处理设施的投资虽然逐年增加，但生活垃圾无害化处理效率仍然很低，垃圾无害化处理技术和设施的缺乏已成为污染环境、制约发展的社会问题。
现有的垃圾处理过程中，为了保证生活垃圾达到入炉焚烧的含水率和热值要求，我国垃圾发电厂大多采用了堆放醇化预处理工艺，把原生垃圾通过5到7天的堆放发酵，使生活垃圾醇化脱水勉强达到入炉要求。而堆放醇化工艺需频繁倒料才能保证脱水效果，更使得员工工作量繁重、管理难度大，且垃圾仓工作环境危险恶劣。即便如此，堆放醇化预处理工艺仅仅是保证了“能烧起来”的最低要求，而焚烧发电的经济效益依然较差。如何高效快速地为原生垃圾脱水，这是困扰我国生活垃圾发电技术推广的一个重要课题。
在上述背景技术的基础上，本发明就是创设一种新的垃圾风干处理系统及方法，使其利用高温废气对垃圾原料进行脱水处理，使风干后的垃圾 易于堆放，改善环境，提高垃圾发电效率。
发明内容
本发明要解决的技术问题是提供一种垃圾风干处理系统，使其利用高温废气对垃圾原料进行脱水处理，从而解决现有的垃圾处理过程中的问题。
为解决上述技术问题，本发明提供一种垃圾风干处理系统，包括低温干风制取装置和与其连接的垃圾风干处理装置，
所述垃圾风干处理装置包括第一垃圾风干筒，所述第一垃圾风干筒的内壁上设有第一螺旋式翻料板，所述第一垃圾风干筒在电机和齿轮的作用下旋转，所述第一螺旋式翻料板在所述第一垃圾风干筒的旋转下翻转并推进垃圾移动，所述第一垃圾风干筒的进风口与所述低温干风制取装置相连，所述低温干风制取装置制取的低温干风沿所述第一垃圾风干筒轴向方向吹出，且所述低温干风的运行方向与所述垃圾的推进方向相同。
作为本发明的一种改进，所述垃圾风干处理装置还包括第二垃圾风干筒，所述第二垃圾风干筒的垃圾进料口与所述第一垃圾风干筒的垃圾出料口相连，所述第二垃圾风干筒的内壁上设有第二螺旋式翻料板，所述第二垃圾风干筒在电机和齿轮的作用下旋转，所述第二螺旋式翻料板在所述第二垃圾风干筒的旋转下翻转并推进垃圾移动，所述第二垃圾风干筒的进风口与所述低温干风制取装置相连，且所述第二垃圾风干筒中低温干风的运行方向与其中垃圾的推进方向相反。
进一步改进，所述第二垃圾风干筒平行设置于所述第一垃圾风干筒的下方，所述第一垃圾风干筒和第二垃圾风干筒中低温干风的运行方向相同，所述第一垃圾风干筒和第二垃圾风干筒中的垃圾推进方向相反。
进一步改进，所述低温干风制取装置包括冷热风交换机构和配风机构，
所述冷热风交换机构包括外壳体和设置于所述外壳体内部的冷风管道，所述外壳体包括与所述冷风管道相通的冷风进风口和冷风出风口、以 及设置于所述外壳体侧壁上的热风进风口和热风出风口，所述热风进风口和热风出风口与所述外壳体和所述冷风管道外侧壁之间的热风通道相通，所述热风出风口与所述第一垃圾风干筒和第二垃圾风干筒的进风口相连，且所述外壳体下部设有第一冷凝水出水口；
所述配风机构包括与所述外壳体上的冷风出风口相连接的配风管道，所述配风管道上设置有引风机，所述配风管道的另一端连接至所述热风进风口前的热风供风管道上。
进一步改进，所述外壳体内部设有多根平行设置的冷风管道。
进一步改进，所述垃圾风干处理系统还包括设置在所述配风管道上的冷却交换器，所述冷却交换器包括配风冷却通道和与其相互邻接的冷风补风通道，所述配风冷却通道与所述冷却交换器的配风进风口和配风出风口相通，所述冷风补风通道与所述冷却交换器的补风进风口和补风出风口相通，所述补风出风口与所述冷风进风口相连接，所述冷却交换器下部设有第二冷凝水出水口。
进一步改进，所述冷却交换器采用板式换热器结构。
进一步改进，所述配风出风口连接第一配风分管和第二配风分管，所述第一配风分管和第二配风分管的另一端分别连接在所述热风供风管道的第一配风口和第二配风口处。
进一步改进，所述热风进风口前的热风供风管道上还设有分配器，所述热风出风口处设有混合箱，所述混合箱与所述分配器之间还设有连接管道，所述连接管道上设有第三配风口，所述第三配风口与所述配风出风口之间连接第三配风分管，所述混合箱的出风口与所述第一垃圾风干筒和第二垃圾风干筒的进风口相连。
进一步改进，所述第一配风分管、第二配风风管和第三配风风管上均设有引风机，所述引风机分别由减速电机带动。
本发明还提供一种应用上述垃圾风干处理系统的垃圾风干处理方法，所述方法包括如下步骤：
(1)以高温尾气为热风源、自然风为补风，通过所述低温干风制取装置制取低温干风；
其中，所述热风源从所述热风供风管道进入，分别在所述第一配风口和第二配风口处配入从所述第一配风分管和第二配风分管排出的配风，然后进入所述冷热风交换机构后脱水从所述热风出风口排出；所述自然风从所述补风进风口进入，经过所述冷却交换器的冷风补风通道后，从所述补风出风口排出进入所述冷风进风口，然后进入所述冷热风交换机构中的冷风管道，再从所述冷风出风口排出后进入所述冷却交换器的配风进风口，经过所述冷却交换器的配风冷却通道后从配风出风口排出进入所述第一配风分管和第二配风分管；
(2)利用步骤(1)制取的低温干风通过所述垃圾风干处理装置对垃圾原料进行风干处理，制得干垃圾；
其中，所述低温干风在所述第一垃圾风干筒中的运行方向与其垃圾的推进方向相同，所述低温干风在所述第二垃圾风干筒中的运行方向与其垃圾的推进方向相反。
进一步改进，所述垃圾风干处理方法步骤(1)中还包括：
从所述热风出风口排出的干风进入所述混合箱中，在所述第三配风口处配入从所述第三配风分管排出的配风也进入所述混合箱中，所述干风和配风在所述混合箱中混合后排出制得的所述低温干风。
进一步改进，所述第一配风口处热风与配风的配风比为1：1～1.5，所述第二配风口处热风与配风的配风比为1：2～2.7，所述第三配风口处热风与配风的配风比例为1：2.5～3.5。
进一步改进，所述步骤(1)中热风源为温度达120℃以上、湿度达30～ 40％的热风，制得的低温干风为温度45～75℃、湿度8～15％；
步骤(2)中采用的垃圾原料为含水率大于45％的湿垃圾，制得的干垃圾含水率为8～15％。
采用这样的设计后，本发明至少具有以下优点：
1、本发明通过利用垃圾风干筒旋转带动垃圾翻动，并利用轴向吹入的低温干风带走垃圾中的水分，使垃圾风干效率显著，利于垃圾存放、改善垃圾场环境，以及提高后续垃圾焚烧或热解的效能。
2、本发明通过利用两个上下平行设置的垃圾风干筒，尤其利用第二垃圾风干筒中低温干风运行方向与垃圾推进方向相反的工作原理，能进一步地提高最终垃圾的风干效果。
3、本发明通过冷热风交换机构利用热风源遇冷后其中水分凝结的原理对热风源中的水分进行脱除，还利于给热风源中配置不同比例的冷风，使热风源制备成合格的低温干风，以备后续垃圾风干处理所用。
4、本发明通过设置冷却交换器，进一步脱除补风配风中的水分，使混入热风源中的配风为干风，更进一步的利于低温干风的制取。
5、本发明还通过设置三个配风分管和三个配风口，使冷热风的配比可灵活调节，利于对最终制取的低温干风温度湿度的控制，提高该垃圾风干处理系统的精确度。
本发明垃圾风干处理系统整体结构简单、日处理垃圾量可达10000吨、高效环保，利于推广。
附图说明
上述仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，以下结合附图与具体实施方式对本发明作进一步的详细说明。
图1是本发明垃圾风干处理系统的整体结构示意图。
图2是本发明中低温干风制取装置的结构示意图。
图3是本发明中冷热风交换机构的内部剖视示意图。
图4是本发明中垃圾风干处理装置的结构示意图。
图5是本发明中垃圾风干筒的横向剖视示意图。
具体实施方式
参照附图1所示，本发明垃圾风干处理系统，包括低温干风制取装置100和与其连接的垃圾风干处理装置200。
参照附图2所示，该低温干风制取装置100包括冷热风交换机构11和配风机构。
该冷热风交换机构11包括外壳体20和设置于该外壳体20内部的冷风管道21，该外壳体20包括与该冷风管道21相通的冷风进风口3和冷风出风口4、以及设置于该外壳体20侧壁上的热风进风口17和热风出风口(在该冷热风交换机构11的背面，图中未示出)，该热风进风口17和热风出风口与该外壳体20和冷风管道21外侧壁之间的热风通道22相通，且该外壳体20下部还设有第一冷凝水出水口13。较优实施例为，该外壳体20内部设有多根平行设置的冷风管道21，以提高冷热风的接触表面，如附图3所示。
该配风机构包括与该外壳体20上的冷风出风口4相连接的配风管道，该配风管道上设置有引风机，该配风管道的另一端连接至该热风进风口17前的热风供风管道15上。
这样冷风在引风机的作用下从冷风进风口3进入冷风管道21中，热风源从热风供风管道15中经热风进风口17进入到冷热风交换机构内部的热风通道22中，则热风在热风通道中遇到冷风管道的外侧壁后其中水分遇冷凝结成水，冷凝水从第一冷凝水出水口13中流出，达到脱除热风源中水分的目的；还有该冷风从冷风出风口4引出后经配风管道引入热风供风管道 15中，实现冷热风调配，达到降低热风源温度的目的。
较优实施例为，参照附图2所示，该低温干风制取装置100还包括设置在该配风管道上的冷却交换器12，以利于对从冷风出风口4排出的冷风进一步降温脱水，使达到热风供风管道中的配风为干风。具体结构为，该冷却交换器12采用板式换热器结构，其包括配风冷却通道和与其相互邻接的冷风补风通道，该配风冷却通道与该冷却交换器12的配风进风口5和配风出风口6相通，该冷风补风通道与该冷却交换器12的补风进风口1和补风出风口2相通，该补风出风口2与该冷风进风口3相连接，该冷却交换器12下部设有第二冷凝水出水口18。
本发明中该配风出风口6连接第一配风分管和第二配风分管，该第一配风分管和第二配风分管的另一端分别连接在该热风供风管道15的第一配风口7和第二配风口8处，这样通过不同配风口的配风比例调节利于热风降温且温度调节方便可控。
为了更进一步的控制最终得到的低温干风的温湿度，该热风进风口17前的热风供风管道15上还设有分配器16，该热风出风口处设有混合箱19，该混合箱19的出口为最终制取的低温干风出风口10。该混合箱19与该分配器16之间还设有连接管道，该连接管道上设有第三配风口9，该第三配风口9与该配风出风口6之间连接第三配风分管。且该第一配风分管、第二配风风管和第三配风风管上均分布设有引风机，引风机分别由减速电机带动，则利于在不同配风口控制不同的冷热风配风比例。
该低温干风制取装置中热风源可采用垃圾焚烧炉或热解气化炉产生的高温尾气，冷风源采用自然风，可实现对温度达120℃以上、湿度达30～40％的热风源的降温脱水处理，最终制得温度为45～75℃、湿度为8～15％的低温干风，该制得的低温干风进行垃圾风干处理装置中风干垃圾。
为了节约该低温干风制取装置的占地面积，该冷热风交换机构11、热 风供风管道上的分配器16和混合箱19、以及冷却交换器12采用支撑平台14竖直叠放方式设置，如附图2所示，空间利用合理，设备结构紧凑、占用面积小。
参照附图4所示，该垃圾风干处理装置200包括第一垃圾风干筒30，该第一垃圾风干筒30的内壁上设有第一螺旋式翻料板40，该第一垃圾风干筒30在电机和齿轮的作用下旋转，该第一螺旋式翻料板40在该第一垃圾风干筒30的旋转下翻转并推进垃圾移动，如垃圾从进料口33进入第一垃圾风干筒30内，在该第一垃圾风干筒30的旋转下向其出料口34推进(如附图4中双箭头方向)。该第一垃圾风干筒30的进风口32与该低温干风制取装置100的低温干风出风口10相连，该低温干风制取装置100制出的低温干风沿该第一垃圾风干筒30轴向方向吹出(如附图4中单箭头方向)，且该低温干风的运行方向与该垃圾的推进方向相同。
更优实施例为：该垃圾风干处理装置200还包括第二垃圾风干筒31，该第二垃圾风干筒31的垃圾进料口35与该第一垃圾风干筒30的垃圾出料口34相连，该第二垃圾风干筒31的内壁上设有第二螺旋式翻料板，该第二垃圾风干筒31在电机和齿轮的作用下旋转，该第二螺旋式翻料板在该第二垃圾风干筒31的旋转下翻转并推进垃圾移动，如垃圾从垃圾进料口35进入第二垃圾风干筒31内，在该第二垃圾风干筒31的旋转下向其垃圾出料口37推进(如附图4中双箭头方向)。该第二垃圾风干筒31的进风口与第一垃圾风干筒30的进风口在同侧均与该低温干风制取装置100的低温干风出风口10相连，则该第二垃圾风干筒31中低温干风的运行方向(如附图4中单箭头方向)与其中垃圾的推进方向相反，这样进一步加强了垃圾中水分的脱除，使获得的垃圾成为干垃圾。较优设置为，该第一垃圾风干筒和第二垃圾风干筒中螺旋式翻料板的边缘均设置有折边41，增加了垃圾与低温干风的接触面积，提高垃圾脱水效率，如附图5所示。
为了设备布置的合理性和节约占地面积，该第二垃圾风干筒31设置于 该第一垃圾风干筒30的下方，两者采用固定支架38上下平行设置。这样第一垃圾风干筒30和第二垃圾风干筒31中低温干风的运行方向相同，从该第一垃圾风干筒30和第二垃圾风干筒31通过的吸收了垃圾中水分的带水分气体从气体排出口36排出。该第一垃圾风干筒30和第二垃圾风干筒31中的垃圾推进方向则相反，垃圾从进料口33进入后依次经过第一垃圾风干筒30和第二垃圾风干筒31最终从垃圾出料口37排出。
该垃圾风干处理系统还包括垃圾预处理粉碎装置和垃圾进料装置。该垃圾预处理粉碎装置，用于垃圾的破包、分选和粉碎处理；该垃圾进料装置包括垃圾传输机构39，该垃圾传输机构39的进口与该垃圾预处理粉碎装置的出口连接，该垃圾传输机构39的出口与该第一垃圾风干筒30的进料口33连接。
应用上述垃圾风干处理系统的垃圾风干处理方法包括如下步骤：
(1)以高温尾气为热风源、自然风为补风，通过该低温干风制取装置制取低温干风。
其中，该热风源从该热风供风管道15进入，分别在该第一配风口7和第二配风口8处配入从该第一配风分管和第二配风分管排出的配风，然后进入该冷热风交换机构11后脱水从该热风出风口排出；该自然风从该补风进风口1进入，经过该冷却交换器12的冷风补风通道后，从该补风出风口2排出进入该冷风进风口3，然后进入该冷热风交换机构11中的冷风管道，再从该冷风出风口4排出后进入该冷却交换器12的配风进风口5，经过该冷却交换器12的配风冷却通道后从配风出风口6排出进入该第一配风分管和第二配风分管。
进一步在包括第三配风口9和第三配风分管的基础上，从该热风出风口排出的干风进入该混合箱19中，在该第三配风口9处配入从该第三配风分管排出的配风也进入该混合箱19中，该干风和配风在该混合箱19中混 合后排出最终制得的低温干风。
具体的冷热风配风比为：第一配风口处热风与配风的配风比为1：1～1.5，第二配风口处热风与配风的配风比为1：2～2.7，第三配风口处热风与配风的配风比例为1：2.5～3.5。
(2)利用步骤(1)制取的低温干风通过该垃圾风干处理装置对垃圾原料进行风干处理，制得干垃圾。
其中，该低温干风在该第一垃圾风干筒30中的运行方向与其垃圾的推进方向相同，该低温干风在该第二垃圾风干筒31中的运行方向与其垃圾的推进方向相反。
本发明利用低温风干制取装置引入高温尾气，调配自然风，对该高温尾气进行降温处理，且对自然风和高温尾气中的水分脱除，实现低温干风的制取，还通过低温干风对垃圾风干筒中垃圾的脱水风干，实现垃圾的风干处理，能实现对含水率大于45％湿垃圾的风干处理，最终制得含水率为8～15％的干垃圾。
本发明垃圾风干处理系统可用于新鲜生活垃圾、医疗垃圾、陈腐垃圾或污泥等高湿度垃圾的风干处理，利用焚烧炉排出的高温尾气作为热风源，使废弃的热能得到了资源化回收利用，节约能源，又可以实现新鲜垃圾到场即脱水，不用堆放醇化，不产生恶臭，不析出渗滤液，减去了垃圾渗滤液的处理环节，改善垃圾处理厂的工作环境，干化的垃圾不仅便于存储运输，而且烘干消毒后的填埋土再回填垃圾坑，能彻底解决水空气污染隐患，节能环保。
以上所述，仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，本领域技术人员利用上述揭示的技术内容做出些许简单修改、等同变化或修饰，均落在本发明的保护范围内。

Claims (14)

  1. 一种垃圾风干处理系统，其特征在于，包括低温干风制取装置和与其连接的垃圾风干处理装置，
    所述垃圾风干处理装置包括第一垃圾风干筒，所述第一垃圾风干筒的内壁上设有第一螺旋式翻料板，所述第一垃圾风干筒在电机和齿轮的作用下旋转，所述第一螺旋式翻料板在所述第一垃圾风干筒的旋转下翻转并推进垃圾移动，所述第一垃圾风干筒的进风口与所述低温干风制取装置相连，所述低温干风制取装置制取的低温干风沿所述第一垃圾风干筒轴向方向吹出，且所述低温干风的运行方向与所述垃圾的推进方向相同。
  2. 根据权利要求1所述的垃圾风干处理系统，其特征在于，所述垃圾风干处理装置还包括第二垃圾风干筒，所述第二垃圾风干筒的垃圾进料口与所述第一垃圾风干筒的垃圾出料口相连，所述第二垃圾风干筒的内壁上设有第二螺旋式翻料板，所述第二垃圾风干筒在电机和齿轮的作用下旋转，所述第二螺旋式翻料板在所述第二垃圾风干筒的旋转下翻转并推进垃圾移动，所述第二垃圾风干筒的进风口与所述低温干风制取装置相连，且所述第二垃圾风干筒中低温干风的运行方向与其中垃圾的推进方向相反。
  3. 根据权利要求2所述的垃圾风干处理系统，其特征在于，所述第二垃圾风干筒平行设置于所述第一垃圾风干筒的下方，所述第一垃圾风干筒和第二垃圾风干筒中低温干风的运行方向相同，所述第一垃圾风干筒和第二垃圾风干筒中的垃圾推进方向相反。
  4. 根据权利要求2所述的垃圾风干处理系统，其特征在于，所述低温干风制取装置包括冷热风交换机构和配风机构，
    所述冷热风交换机构包括外壳体和设置于所述外壳体内部的冷风管道，所述外壳体包括与所述冷风管道相通的冷风进风口和冷风出风口、以 及设置于所述外壳体侧壁上的热风进风口和热风出风口，所述热风进风口和热风出风口与所述外壳体和所述冷风管道外侧壁之间的热风通道相通，所述热风出风口与所述第一垃圾风干筒和第二垃圾风干筒的进风口相连，且所述外壳体下部设有第一冷凝水出水口；
    所述配风机构包括与所述外壳体上的冷风出风口相连接的配风管道，所述配风管道上设置有引风机，所述配风管道的另一端连接至所述热风进风口前的热风供风管道上。
  5. 根据权利要求4所述的垃圾风干处理系统，其特征在于，所述外壳体内部设有多根平行设置的冷风管道。
  6. 根据权利要求5所述的垃圾风干处理系统，其特征在于，所述垃圾风干处理系统还包括设置在所述配风管道上的冷却交换器，所述冷却交换器包括配风冷却通道和与其相互邻接的冷风补风通道，所述配风冷却通道与所述冷却交换器的配风进风口和配风出风口相通，所述冷风补风通道与所述冷却交换器的补风进风口和补风出风口相通，所述补风出风口与所述冷风进风口相连接，所述冷却交换器下部设有第二冷凝水出水口。
  7. 根据权利要求6所述的垃圾风干处理系统，其特征在于，所述冷却交换器采用板式换热器结构。
  8. 根据权利要求6所述的垃圾风干处理系统，其特征在于，所述配风出风口连接第一配风分管和第二配风分管，所述第一配风分管和第二配风分管的另一端分别连接在所述热风供风管道的第一配风口和第二配风口处。
  9. 根据权利要求8所述的垃圾风干处理系统，其特征在于，所述热风进风口前的热风供风管道上还设有分配器，所述热风出风口处设有混合箱，所述混合箱与所述分配器之间还设有连接管道，所述连接管道上设有第三配风口，所述第三配风口与所述配风出风口之间连接第三配风分管，所述 混合箱的出风口与所述第一垃圾风干筒和第二垃圾风干筒的进风口相连。
  10. 根据权利要求9所述的垃圾风干处理系统，其特征在于，所述第一配风分管、第二配风风管和第三配风风管上均设有引风机，所述引风机分别由减速电机带动。
  11. 一种应用如权利要求8至10任一项所述的垃圾风干处理系统的垃圾风干处理方法，其特征在于，所述方法包括如下步骤：
    (1)以高温尾气为热风源、自然风为补风，通过所述低温干风制取装置制取低温干风；
    其中，所述热风源从所述热风供风管道进入，分别在所述第一配风口和第二配风口处配入从所述第一配风分管和第二配风分管排出的配风，然后进入所述冷热风交换机构后脱水从所述热风出风口排出；所述自然风从所述补风进风口进入，经过所述冷却交换器的冷风补风通道后，从所述补风出风口排出进入所述冷风进风口，然后进入所述冷热风交换机构中的冷风管道，再从所述冷风出风口排出后进入所述冷却交换器的配风进风口，经过所述冷却交换器的配风冷却通道后从配风出风口排出进入所述第一配风分管和第二配风分管；
    (2)利用步骤(1)制取的低温干风通过所述垃圾风干处理装置对垃圾原料进行风干处理，制得干垃圾；
    其中，所述低温干风在所述第一垃圾风干筒中的运行方向与其垃圾的推进方向相同，所述低温干风在所述第二垃圾风干筒中的运行方向与其垃圾的推进方向相反。
  12. 根据权利要求11所述的垃圾风干处理方法，其特征在于，所述垃圾风干处理系统采用如权利要求10所述的垃圾风干处理系统，所述垃圾风干处理方法步骤(1)中还包括：
    从所述热风出风口排出的干风进入所述混合箱中，在所述第三配风口 处配入从所述第三配风分管排出的配风也进入所述混合箱中，所述干风和配风在所述混合箱中混合后排出制得的所述低温干风。
  13. 根据权利要求12所述的垃圾风干处理方法，其特征在于，所述第一配风口处热风与配风的配风比为1：1～1.5，所述第二配风口处热风与配风的配风比为1：2～2.7，所述第三配风口处热风与配风的配风比例为1：2.5～3.5。
  14. 根据权利要求11所述的垃圾风干处理方法，其特征在于，所述步骤(1)中热风源为温度达120℃以上、湿度达30～40％的热风，制得的低温干风为温度45～75℃、湿度8～15％；
    步骤(2)中采用的垃圾原料为含水率大于45％的湿垃圾，制得的干垃圾含水率为8～15％。
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CN110513996B (zh) * 2019-09-26 2023-12-08 中国电力工程顾问集团西北电力设计院有限公司 一种垃圾焚烧发电厂用垃圾干燥装置
CN115157502A (zh) * 2022-06-16 2022-10-11 山东大学 一种抗粘连胶片冷却台
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