KR102184821B1 - Drying Treatment System of Sewage Sludge - Google Patents

Abstract

Disclosed is a sewage sludge recycling drying system, comprising: a pulverizing unit for pulverizing input sludge; and a drying unit for drying and transferring the sludge received from the pulverizing unit. The present invention has an effect of improving the drying efficiency.

Description

Drying Treatment System of Sewage Sludge}

The present invention relates to a drying system for recycling sewage and wastewater sludge, and more particularly, to improve drying efficiency by pulverizing, drying, stirring, circulating and indirect drying various sludges including dyeing wastewater sludge, sewage sludge and industrial sludge. At the same time, the inside of the drying system is sealed and the steam is discharged with a vacuum pump, thereby discharging the steam without inflow of external air, thereby reducing the amount of steam and odor.

The amount of dyeing wastewater sludge, sewage sludge, industrial sludge, etc. is increasing as time goes by, and the increase in the amount of such substances has a great effect on polluting the earth's environment. Therefore, for environmental protection and eco-friendly policies, not only environmental organizations, but also governments or local governments, and other related organizations are making efforts to reduce the amount of waste generated. As one of these efforts, food or sewage sludge containing a lot of moisture during the collection process is dried so that the moisture content is below an appropriate level and then subjected to the following treatment process.

A drying device that plays such a role has been developed and used, but in a conventional dryer, in order to increase the drying efficiency and transfer efficiency of the object to be dried, the space between the disks is gradually formed as the arrangement interval of the disk advances from the front to the rear. Since the angle of the attached scraper gradually increases as it progresses from the front to the rear, a certain degree of increase in drying efficiency and transfer efficiency has been obtained, but it is not possible to provide a sufficient increase in efficiency as desired by a dryer operator.

In addition, the conventional disk dryer has a structure that evaporates the moisture inside the dryer by discharging moisture evaporated by supplying a heat source from the disk to an external fan. In the prior art, since the inlet and outlet are always open, a large amount of external air is introduced because the amount of steam evaporated from the inside and the amount of air that can be moved to the outside before the steam is recondensed are required. In addition, the discharged vapor passes through the condenser and is mostly condensed and converted into condensed water, but the remaining non-condensable gases or air introduced from the outside contain odors, so they were deodorized in a deodorizing tower or deodorizing furnace and then released to the atmosphere.

Therefore, the conventional exhaust device has a problem that a large-capacity fan must be provided to inflow a large amount of external air, and since the exhaust air contains odor, additional equipment to remove odor is required. There was a problem in that a large amount of odor was contained in the air discharged in proportion to the.

The contents described in the background art mentioned above are prepared only to understand the background art of the present invention, and thus may include content other than the known art already known to those skilled in the art.

Korean Patent Registration No. 10-0802259

In more detail, one aspect of the present invention improves drying efficiency by pulverizing, drying, circulating and indirect drying various sludges including dyeing wastewater sludge, sewage sludge, industrial sludge, etc., while sealing the interior of the drying system. It is intended to provide a wastewater sludge recycling and drying system that reduces the amount of steam and odor by discharging the steam without inflow of external air by discharging the steam with a vacuum pump.

The technical problem of the present invention is not limited to the technical problem mentioned above, and other technical problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

Sewage and wastewater sludge recycling and drying system according to an embodiment of the present invention, a pulverization unit for pulverizing the input sludge; And a drying unit for drying and transferring the sludge received from the pulverizing unit.

In one embodiment, a hot air drying unit for circulating drying by supplying hot air to the sludge received and transferred to the stirring unit; And a heating unit formed at least in part of the stirring unit to supply heat to the inside of the stirring unit to indirectly dry, wherein the pulverizing unit includes a first inlet at one end and a first outlet at the other end. 1 main body module; A first drying module formed in at least one area of an inner surface of the first main body module and drying the sludge introduced through the first inlet; A first pulverizing module for pulverizing the sludge; At least one first sludge supply module for supplying and transferring the sludge injected through the first inlet to the first pulverizing module; And a first guide plate module formed under the first crushing module and having a plurality of through holes, wherein the first crushing module includes: a first rotating body having a plurality of first rotating blades formed on an outer peripheral surface thereof; And a plurality of first fixed blades meshed with the plurality of first rotating blades and fixed to the inner surface of the first main body module, wherein the first rotating body includes at least one of clockwise and counterclockwise directions. It rotates in a direction, and the plurality of first rotating blades and the plurality of first fixed blades are formed in a serrated shape, and the plurality of first rotating blades are formed in a row in the width direction of the first rotating body, The first sludge supply module includes: a first rotation shaft extending in a width direction of the first main body module; And a plurality of first rotating blades coupled to the first rotating shaft and interlocking with the rotational motion of the first rotating shaft, and the amount of sludge supplied to the first pulverizing module according to the rotational speed of the first rotating blade And the first drying module includes at least one first electrothermal heater unit emitting heat from a surface; And at least one first hot air supply unit supplying hot air toward the sludge pulverized by the first pulverizing module, wherein the hot air of the first hot air supply unit is at least a part of the plurality of through holes of the first guide plate module. By passing through, it is distributed and supplied to the sludge, and the first hot air supply unit includes: a first hot air fan generating the hot air; A first transfer pipe interlocked with the first hot air and transferring the hot air; And a first discharge pipe communicating with the first conveying pipe and discharging the hot air toward the sludge pulverized by the first pulverizing module, wherein the stirring part is connected to the first main body module. module; A second body formed inside the second body module and having a cylindrical shape; A hollow second central axis is rotatably provided inside the second body, and a plurality of second disks are provided on the second central axis to transport the sludge in one direction, and supplied through the second central axis. And a second stirring module for drying the sludge transferred by the low-pressure steam flowing into the respective second disks, and the second body includes a second stirring module for supplying the sludge received from the pulverizing unit to an upper side. 2 An inlet is provided, and a second outlet for discharging the dried sludge to the opposite side of the lower portion of the second body is provided, and the second inlet and the second outlet are connected through a second sealed injector and a second sealed discharger. So that the inside of the second body is sealed, and the second disks have a square hole inserted into the second central axis in the center, and a second heating through which the second steam hole is drilled in the second central axis. A space part is provided, and the hot air drying part includes: an air supply fan receiving air purified by the air cleaning part; An air supply duct that receives the air purified by the air supply fan and includes a circulation fan formed in at least one area inside the second body to suck the air inside the second body; A circulation duct branching from the air supply duct and including a heat exchanger therein to generate hot air; A hot air supply port for supplying the hot air generated by the circulation duct into the body; The second body includes an exhaust duct for discharging air from the inside of the second body, and the hot air drying unit blocks a damper installed in the air supply duct when the sludge is transferred to the stirring unit, and operates the circulation fan, so that the second body After inhaling the internal air through the air supply duct, it is sent to the heat exchanger to heat the air, and hot air is sprayed on the sludge through the hot air supply port to heat the sludge and the moisture contained therein to continuously evaporate moisture, and a drying process The water vapor from which the moisture is evaporated and the pollutant gas of the sludge are sent to the air purifying unit by opening a damper installed on one side of the exhaust duct, and the heating unit includes at least a part of the side surface of the outer peripheral surface of the second body of the stirring unit A side heater configured to be arranged in an annular shape along a circumference of a side surface, and configured to include a heating element for supplying heat to the inside of the second body in close contact with the side surface, and a heat insulating part formed to surround the heating element from the outside; And a heating element configured to be disposed under the second body while at least partially surrounding a lower surface of the outer peripheral surface of the second body, and surrounding the heating element and the heating element from the outside to supply heat to the inside of the second body in close contact with the lower surface. It includes a lower surface heater configured to include a heat insulating portion formed, the side heater is configured to be detachably disposed on the second body, including a connecting member and a fastening member, the side heater, the first unit and Consisting of two second units, the connecting member is a hinge connection between the first unit and the second unit, and the fastening member is composed of at least a pair of bolts and nuts, and ends of the second units Is fastened to abut, and the inner diameter of the side heater is adjusted by tightening the bolt and the nut, and the heat insulating part is in contact with the heating element and the heat insulating material surrounding the heating element and the heat insulating material while surrounding the outside of the heat insulating material It includes a housing that maintains the shape of the negative.

In one embodiment, further comprising a suction unit installed adjacent to the area where the sludge dried by the stirring unit is discharged, and suctioning air containing dust around the area from which the dried sludge is discharged, the suction Blowing, an intake port for sucking air containing dust generated from the second outlet of the stirring unit; An exhaust port for discharging the air from which the dust has been removed; It is disposed between the intake port and the exhaust port and communicates with the intake port and the exhaust port, and a main body that stores water, a sprinkler that sprays water to collect dust, and a pump that sucks up water and delivers it to the sprinkler. Dust collector consisting of; A blower installed between the intake port and the exhaust port to suck and discharge ambient air; And a corrugated pipe that is detachably installed in the intake port and the exhaust port, the dust collector, and the blower and used as a passage to allow the surrounding air to move, wherein the exhaust port includes a corrugated pipe that can be folded and unfolded; A support portion supporting the lower portion of the folded corrugated pipe; And a retaining portion that is rotatably installed in the exhaust port and retains the folded corrugated pipe so as not to spread.

In one embodiment, the pulverizing unit, the stirring unit, the hot air drying unit, and the heating unit are supplied with power from one main supply line, and are formed in at least one area of the main supply line to measure the power consumption. Further comprising: a measuring module for measuring a current of the main supply line supplying power to the pulverizing unit, the stirring unit, the hot air drying unit and the heating unit; A storage module for storing data representing a current change pattern of the main supply line when the pulverizing unit, the stirring unit, the hot air drying unit, and the heating unit are each operated by receiving power from the main supply line; And when each of the pulverizing unit, the stirring unit, the hot air drying unit and the heating unit is operated by receiving power from the main supply line, the current change detected through the measurement module and the data stored in the storage module are pulverized. And a determination module for determining an electronic device operating among the agitating unit, the hot air drying unit, and the heating unit, and the determination module includes a result of frequency conversion of the sensed current change, in a predetermined frequency section. By extracting at least one of the current change slope and the offset frequency corresponding to the predetermined current magnitude, and comparing the extracted value with the data stored in the storage module, it operates among the pulverizing unit, the stirring unit, the hot air drying unit, and the heating unit. And the determination module compares the current change slope of the predetermined frequency section determined in consideration of the center frequency of the current supplied through the main supply line with the data stored in the storage module. The electronic device operating among the stirring unit, the hot air drying unit and the heating unit is determined, and the determination module includes an operation time of the electronic device operating among the pulverizing unit, the stirring unit, the hot air drying unit and the heating unit, and Based on the amount of power used per unit time, the amount of power used by the electronic device operating among the pulverizing unit, the stirring unit, the hot air drying unit, and the heating unit is calculated.

According to an aspect of the present invention, various sludges, including dyeing wastewater sludge, sewage sludge, industrial sludge, etc., are pulverized, dried, circulated, dried, and indirectly dried to improve drying efficiency, while keeping the inside of the drying system in a sealed state. By making and discharging the steam with a vacuum pump, the steam is discharged without inflow of external air, thereby reducing the amount of steam and odor.

1 to 3 are views showing the wastewater sludge recycling and drying system according to the present invention.
4 shows a pulverization unit according to an embodiment of the present invention.
5 and 6 show a heating unit according to an embodiment of the present invention.
7 to 9 show a suction unit according to a first embodiment of the present invention.
10 shows a suction unit according to a second embodiment of the present invention.
11 is a diagram illustrating an apparatus for measuring power consumption according to an embodiment of the present invention.
12 is a diagram showing an internal configuration of an apparatus for measuring power consumption according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION The detailed description of the present invention to be described later refers to the accompanying drawings, which illustrate specific embodiments in which the present invention may be practiced. These embodiments are described in detail sufficient to enable a person skilled in the art to practice the present invention. It is to be understood that the various embodiments of the present invention are different from each other, but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention in relation to one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description to be described below is not intended to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all scopes equivalent to those claimed by the claims. Like reference numerals in the drawings refer to the same or similar functions over several aspects.

1 to 3 are views showing a wastewater sludge recycling and drying system according to the present invention.

1 to 3, the wastewater sludge recycling and drying system 10 according to an embodiment of the present invention includes a pulverizing unit 100, a stirring unit 200, a hot air drying unit 300, and a heating unit ( 400) may be included.

The pulverizing unit 100 pulverizes and dry the input sludge. The pulverizing unit 100 of the present invention may further improve the drying efficiency of the sludge by pulverizing the sludge to be input and drying it through heat and hot air at the same time.

The agitation unit 200 communicates with the pulverization unit 100, and stirs dry and transfers the sludge received from the pulverization unit 100. The stirring unit 200 may transfer the sludge through a rotational motion and at the same time dry the sludge using low pressure steam.

The stirring unit 200 may include a second body module 210, a second body 220, and a second stirring module 230. The second body module 210 is connected to the first body module 110 of the pulverizing unit 100. The second body 220 is formed inside the second body module 210 and may be formed in a cylindrical shape. The heating unit 400 is formed in at least one area on the outer circumferential surface of the second body 220 to supply heat into the stirring unit 200.

In one embodiment, the second stirring module 230 is provided with a hollow second central shaft 231 rotatably inside the second body 220, and a plurality of second disks on the second central shaft 231 It is provided with 232 so that the sludge can be transferred in one direction. In addition, the second stirring module 230 may allow the low-pressure steam supplied through the second central shaft 231 to flow into each of the second disks 232 to dry the conveyed sludge.

In one embodiment, the second body 220 is provided with a second inlet 221 for supplying the sludge delivered from the pulverization unit 100 to one side of the upper side, and dried toward the lower side of the second body 220 A second discharge port 222 for discharging sludge is provided, and the second input port 221 and the second discharge port 222 are provided through the second sealed injector 221-1 and the second sealed discharger 222-1. By being connected, the inside of the second body 200 can be sealed. That is, when sealing of the stirring unit 200 is required, the second sealed input unit 221-1 and the second sealed discharge unit 222-1 are closed to block the inflow of external air into the stirring unit 200. I can.

In one embodiment, the second disk 232 has a square hole that is inserted into the second central axis 231 is perforated in the center, and a second steam hole 233 drilled in the second central axis 231 inside. A second heating space part (not shown) communicating with may be provided. Through this configuration, the stirring unit 200 can dry the sludge while stirring.

In one embodiment, a steam outlet 213 for discharging steam generated during the drying process is provided in the upper center of the second main body module 210, and the steam outlet 213 is connected to a vacuum pump (not shown). So that the inside of the second body 220 is maintained in a vacuum state.

In one embodiment, the second central shaft 231 is provided in a hollow shape having a square cross section to supply steam to the inside, and a steam supply port 21 is provided on one side of the second central shaft 231 and the other side A drain 22 for discharging condensed water is provided. In addition, a plurality of second disks 232 are provided in multiple stages on the second central axis 231. The second disk 232 is a form in which a double disk is superimposed, and a square hole that is inserted into the second central axis 231 and welded is perforated in the center, and a second heating space part 32 that is filled with steam between the disks. ) Is formed, and the second heating space 32 corresponds to a plurality of second steam holes 23 drilled in the second central axis 231. In addition, a plurality of second transfer blades 33 are provided on the outer peripheral surfaces of the second disks 232 to transfer the sludge.

The hot air drying unit 300 may supply hot air to the sludge received and transferred to the stirring unit 200 to be circulated and dried. The hot air dryer 300 receives a supply fan 310 supplied with air purified from an air purification unit (not shown), and at least one area inside the second body 220 while receiving the air purified by the supply fan 310 It is formed in the air supply duct 320 including the circulation fan 321 for inhaling the air inside the second body 220, branched to the air supply duct 320, and includes a heat exchanger 331 therein to generate hot air. The generated circulation duct 330, the hot air supply port 340 for supplying the hot air generated by the circulation duct 330 to the inside of the second body 220, and an exhaust duct for discharging the air inside the second body 220 Includes 350. Including this configuration, in one embodiment, the hot air drying unit 3000 blocks the damper installed in the air supply duct 320 when the sludge is transferred into the stirring unit 200, and operates the circulation fan 321, After the air inside the second body 220 is sucked into the air supply duct 320, the air may be heated by sending it to the heat exchanger 331. Subsequently, the air heated by the heat exchanger 331 is supplied with hot air. Water can be continuously evaporated by spraying hot air to the sludge through the hole 340. After that, the water vapor from which the moisture has been evaporated during the drying process and the polluted gas of the sludge are transferred to one side of the exhaust duct 350. The installed damper is opened and sent to the air purification unit (not shown).

The heating unit 400 is formed at least a part of the stirring unit 200 to supply heat to the inside of the stirring unit 200 to indirect drying.

By pulverizing, drying, stirring, circulating and indirect drying the sludge through the pulverizing unit 100, the stirring unit 200, the hot air drying unit 300 and the heating unit 400, the drying system 10 of the present invention is The drying efficiency is improved, and the inside of the drying system is sealed and the steam is discharged with a vacuum pump, thereby discharging the steam without inflow of external air, thereby reducing the amount of steam and odor.

4 shows a pulverization unit according to an embodiment of the present invention.

As shown in Fig. 4, the pulverization unit 100 according to an embodiment of the present invention includes a first body module 110, a first sludge supply module 120, a first drying module 130, and a first crushing unit. A module 140 and a first guide plate module 150 may be included.

The first body module 110 may have a first inlet 111 formed at one end and a first outlet 112 at the other end. Sludge is introduced into the pulverizing unit 100 through the first inlet 111, and the first inlet 111 may have various sizes and shapes according to the size and amount of sludge. The first discharge port 112 is a place where the pulverized sludge passing through the first inlet 111, the first drying module 130 and the first crushing module 140 is discharged, and the first discharge port 112 is a first body It may be formed under the module 110. The sludge discharged through the discharge port 112 is smaller in size, weight, and volume than the sludge injected into the first input port 111 by the operation of the first drying module 130 and the first grinding module 140. I can lose.

The first sludge supply module 120 may supply and transport the sludge injected through the first inlet 111 to the first pulverization module 140. The first sludge supply module 120 is located before the sludge is introduced into the first crushing module 140, and in order to increase the sludge crushing efficiency of the first crushing module 140, the first crushing module 140 It is possible to control the amount of sludge to be fed and the sludge input rate. The first sludge supply module 120 may supply and transport the sludge injected through the first inlet 111 to the first pulverization module 140. The first sludge supply module 120 may include a first rotation shaft 121 and a plurality of first rotation blades 122. Specifically, the first rotation shaft 121 may be formed to extend in the width direction (Y-axis direction) of the first main body module 110, and the plurality of first rotation blades 122 may include the first rotation shaft 121 and It may be combined and interlocked with the rotational motion of the first rotation shaft 121. Each of the plurality of first rotary blades 122 forms a predetermined angle and may be coupled to the first rotary shaft 121, through which a space capable of receiving sludge is formed between the plurality of first rotary blades 122 It will be. The size of the space accommodating the sludge can be adjusted by adjusting the angle between the first rotary blades 122. That is, through the adjustment of the rotation speed of the first rotation shaft 121 and the size of the space formed between the first rotation blades 122, the first sludge supply module 120 is put into the first crushing module 140 It is possible to control the amount of sludge and the sludge input speed. Specifically, looking at the operating method of the first sludge supply module 120, the first sludge supply module 120 receives the sludge input from the first inlet 111 into the space between the first rotary blades 122. That is, the first sludge supply module 120 prevents the sludge from being directly supplied to the first crushing module 140, thereby reducing the impact applied to the first crushing module 140 while the sludge containing moisture falls. In addition, the amount of sludge introduced into the first grinding module 140 can be adjusted. Subsequently, the first sludge supply module 120 can fill the sludge in the space between the first rotary blades 122, and the first pulverization module 140 is formed by the size of the space between the first rotary blades 122. ), the amount of sludge supplied to it can be adjusted. Subsequently, a certain amount of sludge may be transferred to the first pulverizing module 140 through the rotational motion of the first rotation shaft 121 and the first rotation blade 122. That is, if the rotational speed of the first rotational shaft 121 is increased, a small amount of sludge can be provided to the first pulverization module 140 in a short period, and if the rotational speed of the first rotational shaft 121 is slowed, a relatively large amount The sludge of can be provided in a long cycle. The rotation speed of the first rotation shaft 121 may be variously changed according to the capacity and rotation speed of the first grinding module 140. Through the operation of the first sludge supply module 120 as described above, the dry crusher 1000 of the present invention can further improve sludge pulverization performance, and has an effect of eliminating the risk of failure and breakage.

The first drying module 130 may be formed in at least one area of the inner surface of the first main body module 110 and may dry the sludge injected through the first inlet 111. The first drying module 130 may include a first electrothermal heater unit 131 and a first hot air supply unit 132, and the first electrothermal heater unit 131 and the first hot air supply unit 132 are sludge The moisture contained in the inside can be effectively removed, and at the same time, the smell contained in the sludge can be removed. The first electrothermal heater unit 131 is formed in at least one area of the inner surface of the first main body module 110 and may radiate heat toward the input sludge. The sludge subject to pulverization has a difference in pulverization efficiency according to the water content of the sludge. Therefore, before the sludge pulverization step, by drying the sludge with the first electrothermal heater unit 131, the pulverization efficiency can be improved. The first electrothermal heater unit 131 may generate heat by passing current to a resistance line or the like, or generate heat by generating visible or infrared rays. In addition, the first electric heater unit 131 may be formed in a shape facing the upper side of the first fixed blade 142 of the first grinding module 140 in a pair. Through this, as described above, by drying the sludge before the grinding step, it is possible to improve the grinding efficiency. However, this is merely an example, and the first electric heater unit 131 is formed in a plurality of areas on the inner side of the body according to the embodiment, such as being formed under the first inlet 111 or the first fixed blade 142 Can be. In addition, it may be formed to simultaneously operate in the same space as the first hot air supply unit 132 to be described later.

The first crushing module 140 may crush sludge, and may include a first rotating body and a plurality of first fixed blades having a plurality of first rotating blades formed on an outer circumferential surface thereof. The plurality of first fixed blades may be fixed to the inner surface of the first main body module 110 and formed in a structure in which the plurality of first fixed blades and the plurality of first rotating blades engage in order to crush sludge. I can. The first grinding module 140 may include a first rotating body 141, a first rotating blade 142 and a first fixed blade 143. The first rotating body 141 may rotate inside the first main body module 110, and a plurality of first rotating blades 142 may be formed on the outer circumferential surface of the first rotating body 141. That is, when the first rotating body 141 rotates, the first rotating blade 142 also rotates together, and the first rotating blade 142 can crush the sludge with the rotating force generated at this time. In one embodiment, the first rotating body 141 may rotate in at least one of a clockwise (A direction) and a counterclockwise (B direction) direction. Through this, it is possible to prevent only one side of the first rotating blade 142 from being worn, and even when the sludge is caught between the first rotating blade 142 and the first fixed blade 143, the sludge can be easily removed. have. The rotational speed of the first rotating body 141 may be adjusted in consideration of the moisture content or thickness of sludge to be crushed. A plurality of first rotating blades 142 may be formed on the outer circumferential surface of the first rotating body 141, and may be interlocked with the rotational motion of the first rotating body 141. The first fixed blade 143 may be formed in a form that meshes with the first rotating blade 142, and may be formed by being fixed to a region of the inner surface of the first main body module 110. The plurality of first rotating blades 142 and the plurality of first fixed blades 143 may be formed in a serrated shape meshing with each other, and the plurality of first rotating blades 142 may be a first rotating body 141 It may be formed in a line in the width direction of (Y-axis direction).

The first guide plate module 150 is formed under the first grinding module 140 and may include a plurality of through holes. The first guide plate module 150 not only controls the size of the sludge by allowing the sludge crushed in the crushing module 140 to pass through a plurality of through holes, and guides the sludge to the first discharge port 112. By dispersing the hot air supplied from the hot air supply unit 132, it is possible to improve the water removal performance of the sludge.

The first hot air supply unit 132 may include a first hot air fan 1321, a first transfer pipe 1322 and a first discharge pipe 1323. The first hot air blower 1321 is a device that generates hot air, and may be formed in association with the first transfer pipe 1322 that transfers hot air. The first transfer pipe 1322 transfers the hot air generated from the first hot air fan 1321 to the first discharge pipe 1323, and the first discharge pipe 1323 sludges the hot air received from the first transfer pipe 1322. Can be released towards. The first discharge pipe 1323 may be located under the first fixed blade 143 and may discharge hot air toward the sludge crushed by the first crushing module 140. By placing the first hot air supply unit 132 under the first fixed blade 143, the hot air discharged from the first discharge pipe 1323 uses the property of rising the hot air upward, and the first fixed blade 143 ) The heat can be utilized from the upper side as well, so the performance of sludge drying can be improved. In addition, by blowing hot air into the pulverized sludge by the first hot air supply unit 132, odor particles contained in the sludge can also be removed, which is effective in removing odor from the pulverized sludge.

In summary, in the pulverization unit 100 according to an embodiment of the present invention, the first drying module 130 may include a first electric heating heater unit 131 and a first hot air supply unit 132, through which , Sludge pulverization and removal of water contained in the sludge can be performed simultaneously. In particular, the present invention relates to a first drying step of the first electric heating heater unit 131 and a second drying step of the first hot air supply unit 132 centering on the first fixed blade 143 of the first grinding module 140. By providing a double drying step consisting of, it is possible to effectively remove moisture contained in the sludge. In addition, by placing the first hot air supply unit 132 under the first fixed blade 143, as the hot air discharged for drying the pulverized sludge rises to the upper side of the first fixed blade 143, the first heat transfer Drying performance of the heater unit 131 may be further improved.

In addition, the first guide plate module 150 can increase the time the pulverized sludge is exposed to the hot air by inducing the pulverized sludge to the region where the hot air dryer 320 emits hot air, through which the pulverized sludge There is an effect of increasing the moisture removal effect of.

5 and 6 show a heating unit according to an embodiment of the present invention.

5 and 6, the heating unit 400 according to an embodiment of the present invention surrounds at least a portion of the side surface of the outer circumferential surface of the second body 220 of the stirring unit 200 and follows the circumference of the side surface. A side heater 430 and a second body configured to be arranged in an annular shape, including a heating element that supplies heat to the inside of the second body 220 in close contact with the side surface, and a heat insulating part formed to surround the heating element from the outside It is configured to be disposed under the second body 220 while surrounding at least a portion of the lower surface of the outer circumferential surface of the 220, and in close contact with the lower surface to supply heat into the second body 220 and the heating element from the outside. It includes a lower heater 440 configured to include a heat insulating portion formed to wrap.

The side heater 430 supplies heat to the inside of the second body 220 in close contact with the side surface of the second body 220. The side heater 430 serves to indirectly heat the sludge by heating the second body 220. The side heater 430 is a heating element 431 that radiates heat in close contact with the side surface of the second body 220, an insulation material 432 surrounding the heating element 431 from the outside, and a side heater while surrounding the outside of the insulation material 432 It is configured to include a housing 433 maintaining the shape of 430, a second body 220, and a connecting member 434 and a fastening member 435 that are easily detachable.

The heating element 431 is disposed so as to be in close contact with the second body 220, and emits heat to be supplied into the second body 220. The heating element 431 is a resistor that converts electrical energy into thermal energy, and may be composed of a heating wire such as a nichrome wire, a heating pad or a heating sheet in which a heating wire is arranged on an inner surface. In addition, the heating element 431 may be configured to include a known material having a heat conduction function around the wired heating wire in order to uniformly dissipate the generated heat from the entire surface of the heating element 431.

The heat insulating material 432 is disposed so as to surround the heating element 431 from the outside, and the heat emitted from the heating element 431 is not lost to the outside, and is transferred to the side of the second body 220. The heat insulating material 432 is preferably a material having a low thermal conductivity, or a material formed of a porous material in order to reduce the thermal conductivity. The insulating material 432 may be, for example, an organic fibrous material such as cotton, cork, felt, etc., and may be an inorganic material such as asbestos, glass wool, pearlite, or the like. However, it is not limited thereto, and any material known to those skilled in the art may be used as the heat insulating material 432.

The housing 433 is disposed so as to surround the heat insulating material 432 from the outside, thereby forming the outer shape of the side heater 430. The housing 433 may be a metal plate. The housing 433 may be a metal plate whose cross section is processed into a sawtooth shape and bent to surround the insulating material 432.

Since the housing 433 is disposed on the outermost side of the side heater 430 to protect the heating element 432 and the heat insulating material 432, it is preferable that it is not easily corroded and is formed of stainless steel having good durability. Since the heat insulating material 432 is integrally provided by the housing 433 and the housing 433 and the heat insulating material 432 are arranged to surround the heating element 431, the heating element 431 is not exposed to the outside, so that damage is prevented. It can be prevented, and the heat emitted from the heating element 431 can be effectively transferred to the container side. The side heater 430 may include a connecting member 434 and a fastening member 435 so that the side heater 430 can be easily coupled or separated from the second body 220.

The connecting member 434 may be configured by connecting the units 430a and 430b of the side heater 430 to each other. The first unit 430a and the second unit 430b of the side heater 430 may be connected in a rotatable structure by a hinge connecting member, and the second unit may be opened around the hinge connecting member. By this connection member 434, since the space in which the second body 220 is accommodated can be expanded, the side heater 430 has the advantage of being easily detachable from the second body 220.

However, the connection member 3434 is not limited to the above-described connection method and structure, and is not limited to the position and number. It goes without saying that the connecting member 434 may employ various connecting members known to those skilled in the art as long as the second body 220 and the side heater 430 can be easily coupled or separated.

The fastening member 435 is installed at an end of the housing 433 in contact with each other, and connects discontinuous portions of the side heater 430. In addition, the inner diameter of the side heater 430 may be adjusted by the fastening member 435. The fastening member 435 may be composed of a nut coupled to one end of the housing 433 and a bolt coupled to the other end and screwed to the nut. When the fastening member 435 is composed of such a nut and a bolt, the side heater 430 and the second body 220 can be coupled or separated only by a simple operation of holding and turning the bolt by hand, so the side heater 430 is 2 Has the advantage of being easily detachable from the body 220. However, the fastening member 435 is not limited to the above, and various fastening members may be employed so that the second body 220 and the side heater 430 can be coupled or separated in various ways known to those skilled in the art. Of course.

The lower surface heater 440 is in close contact with the lower surface of the second body 220 to supply heat to the inside of the second body 220. The lower surface heater 440 may be configured to be detachably attached to the lower surface of the second body 220. The lower heater 440 is the same as the side heater 430, the heating element 441 to emit heat, the heat insulating material 442 surrounding the heating element 441 from the outside, while surrounding the outside of the heat insulating material 442 It is configured to include a housing 443 to maintain the shape of (440). The heating element 441, the heat insulator 442 and the housing 443 of the lower heater 440 have the same role and configuration as the heating element 431, the heat insulator 432 and the housing 433 of the side heater 430. The description should be omitted.

Meanwhile, the side heater 430 and the bottom heater 440 (hereinafter, collectively referred to as heaters 430 and 440) may further include a temperature sensor (not shown), and the heaters 430 and 440 may include a temperature sensor. By including, it is possible to detect the temperature of the second body 220 at the portion in contact with the heating elements 431 and 441 or the heating elements 431 and 441. The temperature measured by the temperature sensor may be utilized to appropriately control the operation of the heating elements 431 and 441. The temperature sensor is preferably a thermocouple that has a simple configuration, low cost, and excellent temperature measurement effect even at high temperatures. However, the temperature sensor is not limited thereto, and the temperature sensor may be various known temperature sensors such as bi-metal and thermistor, and the temperature sensor is a temperature recording means that displays the temperature by being connected to the temperature sensor with a separate wire. It may be provided.

Further, the heaters 430 and 440 may be connected to a temperature controller (not shown) that controls the operation of the heating elements 431 and 441 according to the temperature sensed by the temperature sensor. The temperature control device may be driven in a manner that is turned off when the temperature reaches a set temperature and turned on when the temperature is decreased, that is, the power supply to the heaters 430 and 440 is blocked. However, the temperature sensor and the temperature control device of the heaters 430 and 440 are not limited to the above. It goes without saying that the temperature of the heaters 430 and 440 can be adjusted in various ways known to those skilled in the art.

7 to 9 show a suction unit according to a first embodiment of the present invention.

7 to 9, the suction unit 600 according to the present invention is composed of an intake port 610 and an exhaust port 620, a dust collector 630, a blower 640, and a corrugated pipe 650, the stirring unit It is installed adjacent to the area from which the dried sludge is discharged, and air including dust around the area from which the dried sludge is discharged may be sucked. That is, in order to prevent the dried and lightened sludge from floating in the air, a suction unit 600 may be further included.

The intake port 610 serves to inhale the surrounding air including dust in the surrounding of the drying system 10 through the suction force of the blower 640. At this time, the dust may include lightened sludge. One end of the intake port 610 is integrally formed with a funnel-shaped guide tube whose diameter expands from left to right. At the other end of the intake port 610, a corrugated pipe 650 is detachably installed through a screw bolt to form a structure in communication with the guide pipe.

The exhaust port 620 serves to discharge the surrounding air that has passed through the dust collector 630 to the outside through the wind generated by the blower 640. At one end of the exhaust port 620, a corrugated pipe 650 is detachably installed via a screw bolt to form a structure in communication with the interior.

The dust collector 630 is composed of a main body 631, a water spray part 632, and a pump 633, and is disposed between the intake port 610 and the exhaust port 620 in the case of the present embodiment, and the inlet port 610 and the exhaust port 620 It forms a structure in communication with each other, and serves to collect dust by spraying water on the dust of the surrounding air introduced through the inlet 610.

The body 631 is an overall box-shaped member, and water for collecting dust is stored therein, and holes are formed on both sides thereof, and corrugated pipes 650 are respectively installed in the holes through screw bolts. 610) and the dust collector 630, the exhaust port 620 and the dust collector 630 are interconnected. In addition, a cover rotatably installed via a hinge is provided on the upper part of the main body 631, through which insufficient water is filled, or the water spray unit 632 and the pump 633 installed inside are easily maintained. can do. In addition, the main body 631 is provided with a drain line capable of discharging water contaminated therein to the outside.

The water spray unit 632 is a pipeline provided with a nozzle and is installed in the main body 631. In this embodiment, water supplied from the pump 633 is sprayed or sprayed downward through the nozzle to collect dust.

The pump 633 may be installed inside the main body 631 or may be installed outside the main body 631, but in this embodiment, it may be installed inside the main body 631. The pump 633 is an underwater pump connected to the watering unit 632 and functions to suck up water stored in the body 631 and deliver it to the watering unit 632. In particular, it is good to install a filter around the pump 633 so as to block the inflow of sludge mixed in water after dust collection is removed.

The blower 640 is installed between the intake port 610 and the exhaust port 620 to provide a suction force capable of inhaling external air including dust through the intake port 610, and exhaust the external air from which the sucked dust has been removed. Provides wind that can be discharged through (620).

In this embodiment, it is installed between the intake port 610 and the dust collector 630, and between the dust collector 630 and the exhaust port 620, respectively, and between the intake port 610 and the dust collector 630, or between the dust collector ( It may be installed between the 630 and the exhaust port 620. The blower 640 forms a structure in communication with the inlet 610, the dust collector 630, and the exhaust port 620 via a corrugated pipe 650. The corrugated pipe 650 is a bellows-shaped pipe formed by coating a synthetic resin film around a spring-structured wire, and plunges are formed at both ends so as to be detachably installed at each inlet, dust collector, blower, and discharger. In addition, a sealing material is installed between the plunge and the device to prevent leakage of external air introduced between the device and the plunge.

On the other hand, the intake port 610, the exhaust port 620, the dust collector 630, and the lower surface of the blower 640 are provided with wheels for convenience of transportation. In addition, a handle is installed on the upper surface of the intake port 610 and the exhaust port 620 and the blower 640. In the present invention, the corrugated pipe 650 is detachably installed to the intake port 610 and the exhaust port 620, the dust collector 630, and the blower 640 so that they are connected to each other so that the surrounding air including dust is sucked and sprayed. It collects dust through water, discharges the surrounding air from which the dust has been removed to the outside, and separates and stores each after use, so it can be easily used in the field as well as storage and transportation are very convenient.

The operation of the first embodiment of the present invention having the above configuration will be described as follows. First, the intake port 610, the dust collector 630, the blower 640, the exhaust port 620 are arranged in this order, and then a corrugated pipe 650 is installed between the intake port, the dust collector, the blower, and the exhaust port so that the interior is communicated with each other. When power is applied in the state installed as described above, the dust collector 630 and the blower 640 operate, and the surrounding air including dust is sucked through the intake port 610 by the blower 640.

In addition, the sucked ambient air is moved along the corrugated pipe 650, passes through the dust collector 630, and is discharged to the outside through the exhaust port 620.

In particular, in the process of passing the surrounding air through the dust collector 630, the dust contained in the surrounding air is collected by the water sprayed (or sprayed) from the watering unit 632 of the dust collector 630, and the surrounding air from which the dust is removed. The bay is guided by the blower 640 and discharged to the outside through the exhaust port 620.

10 shows a suction unit according to a second embodiment of the present invention.

The second embodiment is generally the same as the first embodiment, except that the support portion 621, the retaining portion 22, and the corrugated pipe 650' are further reinforced in the exhaust port 620.

Referring to FIG. 10, the corrugated pipe 650' is a bellows-shaped pipe that is formed by coating a synthetic resin film around a spring-structured wire, and can be folded and unfolded as a whole, and may be formed integrally or integrally with the exhaust port 620. .

The support portion 631 is formed integrally with the exhaust port 620 and serves to support the lower portion of the folded corrugated pipe 650' in the case of the present embodiment.

The detaining part 632 is a frame having an overall shape of'C', and in the present embodiment, it is rotatably installed in the exhaust port 620 and serves to hold the folded corrugated pipe 50' so that it is not unfolded.

In particular, the holding portion 632 is provided with a support (622a), where the support (622a) is rotated together when the holding portion 632 is rotated, and one end is vertically installed on the upper surface of the support portion (621) and folded corrugated pipe It serves to prevent (650') from being pushed forward.

According to this embodiment, it is possible to easily install by extending to an exhaust window located at a high place through the corrugated pipe 650' that is folded and unfolded as described above, and accordingly, the surrounding air from which dust has been removed can be discharged to the outside. It can eliminate the occurrence of dust. In addition, the used corrugated pipe (650') can be stored more compactly because it can be fixed through the support portion 621 and the holding portion 622 after folding, and accordingly, storage and transportation are relatively easy. have. On the other hand, if the end of the corrugated pipe 650' is simply spread over the exhaust window, there is a problem that it is not well covered and falls by the self-weight of the corrugated pipe 650'. Accordingly, in the present embodiment, a mounting mechanism 660 for easily mounting the end of the corrugated pipe 650 ′ may be included in the exhaust window. The mounting mechanism 660 is composed of a string 661 and a weight 662. In the case of the present embodiment, a long string 661 is wound around the end of the corrugated pipe 650' so that both ends of the string 661 are sufficiently stretched, and weights 662 are installed at both ends of the string 661. As an example, if the end of the corrugated pipe 650' is to be mounted on the exhaust window, one weight 662 is positioned outside and the other weight 662 is placed inside based on the cross section of the exhaust window. If the center is aligned, the corrugated pipe 650' can be easily mounted on the exhaust window. And when the use of the mounting mechanism 660 is completed, it may be separated from the corrugated pipe 650' and stored separately or stored in a state installed in the corrugated pipe 650'.

11 is a diagram illustrating an apparatus for measuring power use according to an embodiment of the present invention.

Referring to FIG. 11, the power consumption measuring apparatus 900 may determine which electronic device operates by receiving power from the main supply line A by sensing a current flowing through the main supply line A. The power consumption measuring device 900 may be formed in at least one area of the main supply line A. In one embodiment, the pulverizing unit 100, the stirring unit 200, the hot air drying unit 300, and the heating unit 400 may be formed to receive power from one main supply line A.

The main supply line (A) may refer to a power line that supplies power to a plurality of electronic devices (e.g., the crushing unit 100, the stirring unit 200, the hot air drying unit 300, and the heating unit 400). have. In one embodiment, the main supply line (A) has a plurality of connection points (x, y) that can be connected to the crushing unit 100, the stirring unit 200, the hot air drying unit 300 and the heating unit 400. I can. The main supply line A may be a multi-tap or various types of power lines to which a plurality of electronic devices are connected.

The power consumption measuring device 900 of the present invention includes separate sensors for each of a plurality of electronic devices (eg, a pulverizing unit 100, a stirring unit 200, a hot air drying unit 300, and a heating unit 400). Even without installation, it is possible to detect whether electronic devices are operating. That is, it is possible to detect whether or not a plurality of electronic devices are operated by detecting only a change in current flowing through the main supply line A.

In one embodiment, the power consumption measurement device 900 is based on the current sensed through a current sensor (not shown) formed in the main supply line (A), the current change in the main supply line (A) in the time domain and/or the frequency domain. Can be analyzed. Based on the analysis result, electronic devices that operate by receiving power from the main supply line A may be determined. According to an embodiment, the unique power characteristics of each of the electronic devices (eg, the pulverizing unit 100, the stirring unit 200, the hot air drying unit 300, and the heating unit 400) are identified in advance, and each electronic device is By installing a sensor on the bus, which is the contact point of the device, it is possible to determine whether each electronic device is operating. The inherent power characteristic of the electronic device may include a current change pattern of the main supply line A that appears when the electronic device operates by receiving power from the main supply line A. For example, the intrinsic power characteristic may include a current change form and a phase noise in a transient state at the moment when power is supplied. Phase noise is formed around the frequency main component of the current applied to the electronic device. The frequency main component of the current may mean a component corresponding to the frequency at which the current value represents a peak value. A circuit with phase noise as its main specification is an oscillator, and in the oscillation circuit,'phase noise' is a proper noun and is defined as a voltage ratio from the center frequency to a specific frequency (Off-Set Frequency). The center frequency may mean a frequency at which a current value represents a peak value.

According to an embodiment, a frequency component around a center frequency may be used as an intrinsic power characteristic of the electronic device. When the power consumption measuring apparatus 900 according to an exemplary embodiment detects an operation of an electronic device, distortion due to noise may be reduced by using a phase noise analysis method that extracts and distinguishes only frequency components around a center frequency.

According to the present invention, even if a sensor is not installed in each of a plurality of electronic devices (e.g., the pulverizing unit 100, the stirring unit 200, the hot air drying unit 300, and the heating unit 400), the electronic devices are connected. Approximate electricity consumption can be calculated by determining which electronic device operates using only the sensor installed on the main supply line (A).

12 is a diagram showing an internal configuration of an apparatus for measuring power consumption according to an embodiment of the present invention.

Referring to FIG. 12, the power consumption measurement apparatus 900 may include a measurement module 910, a storage module 920, and a determination module 930.

The measurement module 910 measures the current of the main supply line A that supplies power to the pulverizing unit 100, the stirring unit 200, the hot air drying unit 300, and the heating unit 400. The measurement module 910 according to an embodiment should be able to withstand a large current and should be easy to install. Therefore, the measurement module 910 may be a Rogowski coil, a Hall sensor, or the like. According to an embodiment, the measurement module 910 may have a capacitor shunt connected to the output terminal in the ground direction in order to more clearly distinguish only the current change of each electronic device. Since the impedance (Z) of the capacitor is Z = 1/jwC, it acts similarly to ground at high frequencies, resulting in a smaller voltage, and only the voltage at a low frequency can be measured. In this case, if the capacitance of the capacitor is too large, a sharp change in the edge of the current change, that is, a high frequency component, cannot be confirmed, so it is necessary to select an appropriate capacitor. Accordingly, in one embodiment, the capacitor is used to check the current change of the electronic device with the largest change in the edge of the current change among electronic devices that can be connected to the main supply line A, that is, the electronic device with the most clearly distinguished peak current. You can choose a suitable capacitor.

The storage module 920 is a main supply line (A) when each of the pulverizing unit 100, the stirring unit 200, the hot air drying unit 300 and the heating unit 400 is operated by receiving power from the main supply line A. ) Can be saved. That is, when each electronic device is connected to the main supply line (A) and operates, the storage module 920 is a power source of the electronic device connected to the main supply line (A) (for example, the pulverizing unit 100, the stirring unit 200), When the hot air drying unit 300 and the heating unit 400 are turned on, data indicating a current change pattern of the main supply line A may be stored. For example, the storage module 920, when each of the heating device 100, the thermostat 200, and the mixing device 300 is operated by receiving power from the main supply line (A). A graph representing the current change pattern can be saved, or a feature value representing the current change pattern can be saved. For example, the storage module 920 may store at least one of a current change slope in a predetermined frequency section and an offset frequency corresponding to a predetermined current magnitude as a characteristic value representing a unique current change pattern in the frequency domain. Alternatively, for example, the storage module 920 stores at least one of the ratio of the peak current and the rated current, the rated current, and the time during which the sensed current change is stabilized as a characteristic value representing a unique current change pattern in the time domain. I can. Such data may be stored by learning or user input, or may be received and stored from an external device. Also, the storage module 920 may store information necessary to calculate the amount of power used by the electronic device. For example, the storage module 920 may store at least one of rated current, rated voltage, and rated power of each electronic device. For example, the storage module 920 stores the amount of power used by each electronic device for a unit time, so that the amount of power used by each electronic device and a plurality of electronic devices (e.g., pulverization) are performed based on the operating time of each electronic device. The amount of power used by the unit 100, the stirring unit 200, the hot air drying unit 300, and the heating unit 400) may be measured.

When each of the pulverizing unit 100, the stirring unit 200, the hot air drying unit 300 and the heating unit 400 is operated by receiving power from the main supply line A, the determination module 930 is a measurement module 910 ) By comparing the current change sensed through the storage module 920 and the data stored in the storage module 920 to determine an electronic device operating among the pulverizing unit 100, the stirring unit 200, the hot air drying unit 300, and the heating unit 400 can do. The determination module 930 may control the overall operation of the power consumption measurement device 900. According to an embodiment, the determination module 930 includes electronic devices that operate by receiving power from the main supply line A (e.g., the pulverizing unit 100, the stirring unit 200, the hot air drying unit 300), and heating. It may play a role of controlling the overall operation of the process of determining the unit 400. In addition, the determination module 930 may play a role of controlling an overall operation in a process of measuring the amount of power used by a plurality of electronic devices.

According to an embodiment, the determination module 930 detects the current flowing through the main supply line A by the power consumption measurement device 900 using the measurement module 910, and based on the sensed current, the time domain and/or Alternatively, it is possible to analyze the current change of the main supply line A in the frequency domain. The determination module 930 may determine an electronic device operating by receiving power from the main supply line A based on the analysis result. Also, the determination module 930 may determine the amount of power used by the determined electronic device based on the determined operating time of the electronic device and the amount of power used by the determined electronic device during a unit time. The amount of power used by the electronic device can be calculated by multiplying the operating time of the electronic device by the amount of power used by the electronic device for a unit time.

In addition, the determination module 930 accumulates the amount of power used for each electronic politics measured for a predetermined period of time, so that a plurality of electronic devices (e.g., the pulverizing unit 100, the stirring unit 200, the hot air drying unit 300) and heating The amount of power used by the unit 400 may be measured. The determination module 930 may store the amount of power used by at least one electronic device measured for a predetermined time in the storage module 920.

When the electronic device operates by receiving power from the main supply line A, the determination module 930 may compare the current change sensed through the measurement module 910 with data stored in the storage module 920. The determination module 930 may determine an electronic device operating among a plurality of electronic devices by comparing the sensed current change with data stored in the storage module 920.

The determination module 930 may determine the electronic device that has started to operate based on a change in a current in a transient state at the moment when the electronic device receives power through the main supply line A and operates. The determination module 930 compares the current change in the transient state in which the current supplied through the main supply line A changes from the first normal state to the second normal state and the data stored in the storage module 920 among a plurality of electronic devices. It is possible to determine which electronic device is operating. The first normal state may correspond to a state in which the electronic device is not connected to the main supply line A or the power of the electronic device is turned off. The second normal state may correspond to a state after a predetermined time elapses after the electronic device is connected to the main supply line A or the electronic device is turned on.

As an example, the determination module 930 may extract a current change slope in a predetermined frequency section determined in consideration of the center frequency of the current supplied through the main supply line A. The determination module 930 extracts at least one of a current change slope in a predetermined frequency section and an offset frequency corresponding to a predetermined current magnitude based on a result of frequency conversion of the detected current change, and stores the extracted value. By comparing the data stored in the module, it is possible to determine an electronic device operating among the separation module, the cutting module, and the cutting transfer module. In addition, the determination module 930 compares the current change slope of the predetermined frequency section determined in consideration of the center frequency of the current supplied through the main supply line A with the data stored in the storage module. It is possible to determine an electronic device operating among the cutting and transfer modules. In addition, the determination module 930 is based on the operation time of the electronic device operating among the pulverizing unit 100, the stirring unit 200, the hot air drying unit 300, and the heating unit 400 and the amount of power used per unit time, The amount of power used by an electronic device operating among the pulverizing unit 100, the stirring unit 200, the hot air drying unit 300, and the heating unit 400 may be calculated.

Although the above has been described with reference to embodiments, those skilled in the art will understand that various modifications and changes can be made to the present invention without departing from the spirit and scope of the present invention described in the following claims. I will be able to.

10: Wastewater sludge recycling and drying system
100: crushing part
200: stirring unit
300: hot air drying unit
400: heating part
600: suction unit
900: power consumption measuring device

Claims (2)

A crushing unit for pulverizing and drying the input sludge;
A stirring unit for stirring, drying and transferring the sludge received from the pulverizing unit;
A hot air drying unit for circulation drying by supplying hot air to the sludge received and transferred to the stirring unit; And
At least a portion of the stirring unit is formed and includes a heating unit for indirect drying by supplying heat into the stirring unit,
The crushing part,
A first body module having a first inlet at one end and a first outlet at the other end; A first drying module formed in at least one area of an inner surface of the first main body module and drying the sludge introduced through the first inlet; A first pulverizing module for pulverizing the sludge; At least one first sludge supply module for supplying and transferring the sludge injected through the first inlet to the first pulverizing module; And a first guide plate module formed under the first crushing module and having a plurality of through holes,
The first pulverizing module includes: a first rotating body having a plurality of first rotating blades formed on an outer peripheral surface thereof; And a plurality of first fixed blades meshed with the plurality of first rotating blades and fixed to the inner surface of the first main body module, wherein the first rotating body includes at least one of clockwise and counterclockwise directions. It rotates in a direction, and the plurality of first rotating blades and the plurality of first fixed blades are formed in a serrated shape, and the plurality of first rotating blades are formed in a row in the width direction of the first rotating body,
The first sludge supply module may include a first rotation shaft extending in a width direction of the first main body module; And a plurality of first rotating blades coupled to the first rotating shaft and interlocking with the rotational motion of the first rotating shaft, and the amount of sludge supplied to the first pulverizing module according to the rotational speed of the first rotating blade And
The first drying module may include at least one first electrothermal heater unit emitting heat from a surface; And at least one first hot air supply unit supplying hot air toward the sludge pulverized by the first pulverizing module, wherein the hot air of the first hot air supply unit is at least a part of the plurality of through holes of the first guide plate module. By passing through, it is distributed and supplied to the sludge,
The first hot air supply unit,
A first hot air fan generating the hot air; A first transfer pipe interlocked with the first hot air and transferring the hot air; And a first discharge pipe communicating with the first transfer pipe and discharging the hot air toward the sludge pulverized in the first pulverizing module,
The stirring unit,
A second body module connected to the first body module;
A second body formed inside the second body module and having a cylindrical shape;
A hollow second central axis is rotatably provided inside the second body, and a plurality of second disks are provided on the second central axis to transport the sludge in one direction, and supplied through the second central axis. It includes a second stirring module for drying the sludge transferred by the low pressure steam flowing into the inside of each of the second disk,
The second body is provided with a second inlet port for supplying the sludge delivered from the pulverization unit to one side of the upper side, and a second outlet port for discharging the dried sludge toward the lower side of the second body. The second inlet and the second outlet are connected through a second sealed injector and a second sealed discharger so that the inside of the second body is sealed,
In the center of the second disks, a square hole inserted into the second central axis is perforated, and a second heating space part communicating with the second steam hole drilled in the second central axis is provided therein,
The hot air drying unit,
An air supply fan receiving the purified air from the air purification unit; An air supply duct that receives the air purified by the air supply fan and includes a circulation fan formed in at least one area inside the second body to suck the air inside the second body; A circulation duct branching from the air supply duct and including a heat exchanger therein to generate hot air; A hot air supply port for supplying the hot air generated by the circulation duct into the second body; It includes an exhaust duct for discharging the air inside the second body,
When the sludge is transferred to the stirring unit, the hot air dryer blocks the damper installed in the supply air duct, operates the circulation fan, sucks the air inside the second body through the air supply duct, and sends it to the heat exchanger. The air is heated and hot air is sprayed onto the sludge through the hot air supply port to heat the sludge and the moisture contained therein to continuously evaporate moisture, and the water vapor from which moisture is evaporated during the drying process and the polluted gas of the sludge are discharged from the exhaust duct. The damper installed on one side is opened and sent to the air purification unit,
The heating unit,
The stirring unit is configured to be disposed in an annular shape along the circumference of the side surface while at least partially surrounding the side surface of the outer circumferential surface of the second body, and the heating element and the heating element for supplying heat to the inside of the second body in close contact with the side surface are outside Side heater configured to include a heat insulating portion formed to wrap in; And
It is configured to be disposed under the second body while at least partially surrounding the lower surface of the outer peripheral surface of the second body, and formed to surround the heating element and the heating element from the outside to supply heat to the inside of the second body in close contact with the lower surface. Includes a lower surface heater configured to include a heat insulating portion,
The side heater includes a connecting member and a fastening member, and is configured to be detachably disposed on the second body, and the side heater includes a first unit and two second units, and the connecting member, The first unit and the second unit are hingedly connected, and the fastening member is composed of at least a pair of bolts and nuts, and is fastened so that the ends of the second units abut, and the bolt and the nut are fastened. It is configured such that the inner diameter of the side heater is adjusted, and the heat insulating portion includes an insulating material surrounding the heating element while in contact with the heating element, and a housing for maintaining the shape of the heat insulating portion while surrounding the outer side of the heat insulating material. Recycling drying system.

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