KR20180027123A - Solid raw material manufacturing system - Google Patents

Abstract

The present invention provides a system for manufacturing a solid raw material, which comprises: a sludge storage module storing sludge; a sawdust storage module storing sawdust; a mixing module which is provided with the sludge and the sawdust from the sludge storage module and the sawdust storage module and mixes the sludge and the sawdust; a drying module receiving a mixture of the sludge and the sawdust from the mixing module and drying the mixture to manufacture a raw material mixture; a first water content and harmfulness control module for supplying moisture to the mixture conveyed from the mixing module to the drying module to control the water content rate; and a pellet forming module receiving the raw material mixture from the drying module to form the solid raw material. An object of the present invention is to provide the system for manufacturing a solid raw material in which sludge and the like are recycled as fuel resources and the manufacturing process is improved.

Description

[0001] Solid raw material manufacturing system [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for manufacturing a raw material by treating sludge and the like, and more particularly, to a system for manufacturing a solid raw material by improving the degree of molding of a solid raw material by automatically controlling the control of water content and the like.

Sludge is sediment separated from liquid generated during treatment of sewage and wastewater. As the domestic sewage and wastewater treatment plant construction continues to increase along with industrial development, sludge generated from 347 treatment plants in 2007 was 7,631㎥ / day From the 460 treatment plants in 2011 to 10,259㎥ / day.

The sludge has a high water content of around 75 ~ 80%, which shortens the lifetime of the landfill, causes odor, and increases the concentration and concentration of leachate to cause pollution of soil and groundwater around the landfill. Which causes excessive processing cost. Such high moisture content decreases the amount of heat generated during incineration, increases the amount of auxiliary fuel used, and generates air pollutants such as dioxins due to chlorine compounds and a decrease in incineration temperature.

However, although the sludge contains about 80% of water, since the organic matter is more than 50% of the remaining amount of moisture, the calorific value of the dried sludge is about 3,000 kcal / kg or more, which is very useful as an energy source. Therefore, it is known that the sewage sludge is dried and developed as a solid fuel, thereby minimizing the environmental pollution caused by the treatment of the sewage sludge and creating high economic value.

Therefore, recently, after collecting sludge, it is developed and applied the technology of using collected sludge as an alternative fuel.

Conventional sludge disposal methods are such that sludge is collected, sludge is mixed with sawdust, waste synthetic resin or coal, and then dried again to form a solid raw material in the form of pellets.

However, in the process of manufacturing solid raw materials using sludge in the past, many hazardous substances have been generated during the process, and the solid raw material, which is the final product, has been produced in different sizes and quality depending on the situation.

Accordingly, there has been a need to develop a new type of sludge treatment apparatus capable of reducing the odor and the like during the manufacturing process more effectively and maintaining the quality of the solid raw material as a final product.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a solid raw material manufacturing system in which sludge and the like are recycled as fuel resources and the manufacturing process is improved .

Another object of the present invention is to provide a solid raw material manufacturing system in which the strength of the finally produced solid raw material is improved to facilitate handling and the amount of heat generated when burning is high.

It is another object of the present invention to provide a solid raw material production system that increases production efficiency, reduces the defective ratio of solid raw materials, and improves mixing and drying efficiency.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

In order to accomplish the above object, the present invention provides a sludge storage device, comprising: a sludge storage module for storing sludge; a sawdust storage module for storing sawdust; a mixing module for supplying and mixing sludge and sawdust from the sludge storage module and the sawdust storage module; A drying module for transferring a mixture of sludge and sawdust from the mixing module to generate a raw material mixture, and a first function for controlling water content by supplying moisture to the mixture conveyed from the mixing module to the drying module, And a pellet forming module for receiving the raw material mixture from the drying module to form a solid raw material.

The pelletizing module may further include a second function and a harmful control module for controlling water content by supplying moisture to the raw material mixture supplied from the drying module to the pellet molding module.

The apparatus may further include a control module for controlling the moisture supplied to the first function and the harmful control module and the second function and the harmful control module.

The pellet molding module may further include a cooling module for cooling and cooling the solid raw material.

The cooling module may include a secondary drying unit for supplying water and hot air to the pellets, and a cooling unit for cooling the pellets by supplying cold air to the supplied solid raw material after receiving the solid raw material from the secondary drying unit.

The apparatus may further include a mixed sludge crusher for crushing the mixture transferred from the mixing module to the drying module.

Further, the pellet molding module may include a body portion having an outer appearance and including a receiving portion for receiving and containing a raw material mixture, a supporting board portion provided below the receiving portion and having a solid material discharging groove, And a pressing portion provided on the body portion to adjust a pressing degree of the pressing wheel portion and the pressing wheel portion provided on the body portion to be discharged through the solid material discharge groove by pressurizing the mixture.

The effect of the solid raw material manufacturing system according to one embodiment of the present invention will be described as follows.

According to one embodiment of the present invention, it is possible to control the water content and harmfulness of the mixture of the sludge and the sawdust provided from the mixing module and the drying module in real time, thereby improving the quality of the solid raw material, And the like.

Secondly, according to one embodiment of the present invention, a pressing portion for pressing the raw material mixture in the pellet molding module is separately provided so that the quality of the solid raw material can be improved by adjusting the degree of the pressing force in accordance with the properties of the raw material mixture At the same time, over time, it is possible to maintain a constant degree of pressure regardless of the wear of the major components of the pellet forming module.

Third, according to an embodiment of the present invention, the cooling module is applied to the main cooling module and the auxiliary cooling module in a single stage, and by supplying high-temperature steam or the like according to the situation, it is possible to prevent breakage and cracks Thereby ensuring the quality of the final product.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a connection relationship of main components constituting a solid raw material manufacturing system according to an embodiment of the present invention; FIG.
2 is a schematic view of a cooling module applied to a solid raw material manufacturing system according to an embodiment of the present invention;
3 is a schematic cross-sectional view of a pelletizing module applied to a solid raw material manufacturing system according to an embodiment of the present invention;
FIG. 4 is a perspective view of the pellet molding module shown in FIG. 3; FIG.
5 is a side view of a drying module according to another embodiment of the present invention; And
FIG. 6 is a perspective view showing an installation mode of a drying blade applied to the drying module of FIG. 5;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood, however, that the appended drawings illustrate the present invention in order to more easily explain the present invention, and the scope of the present invention is not limited thereto. You will know.

FIG. 1 is a schematic view showing a connection relationship between main components constituting a solid raw material manufacturing system according to an embodiment of the present invention.

As shown, a solid raw material manufacturing system 100 according to an embodiment of the present invention includes a sludge storage module 101, a sawdust storage module 105, a mixing module 115, a drying module 125, And harm regulating module 121 and pellet forming module 140.

The sludge storage module 101 has a structure in which sludge is supplied and stored from outside. For this purpose, the sludge storage module 101 has a shed or a tank structure in which sludge supplied using a vehicle or the like is stored in an inner space portion .

The sludge storage module 101 is provided with a discharge part for discharging sludge to one side, and a sludge discharge conveyor 103 is provided around the discharge part. At the same time, the discharged sludge is supplied by a separate supply pump And is supplied to the mixing module 115.

Meanwhile, the malodor processing module 102 connected to the sludge storage module 101 by a separate pipe or the like is further provided. The malodor processing module 120 has a structure similar to that of the deodorization tower, and a predetermined medicine is applied to the inside of the sludge by a spray method to remove odors, and then discharged to the outside using a blower or the like Can be achieved.

The sawdust storage module 105 is configured such that sawdust is supplied from the outside and stored. A sawdust supply unit 107 for supplying sawdust to the sawdust storage module 105 and a sawdust grinding unit 109 for pulverizing the supplied sawdust to a predetermined size and supplying the pulverized wood to the sawdust storage module 105 do.

Also in this case, a sawdust discharge conveyor 111 for discharging the sawdust inside the sawdust storage module 105 to the outside is provided, and the discharged sawdust is also supplied to the mixing module 115 by a well- do.

The mixing module 115 serves to mix sludge and sawdust from the sludge storage module 101 and the sawdust storage module 105, respectively. Although not shown in detail, the mixing module 115 also includes a casing having an internal space formed therein, and a mixing shaft and a mixing blade, which are rotated by a driving motor, are provided inside the casing. (Hereinafter also referred to as "mixture") by mixing the sludge and the sawdust introduced into the interior of the sludge.

The mixing module 115 may be one of various known types.

The solid raw material manufacturing system 100 according to the present embodiment further includes a mixed sludge transfer part 117 for transferring the mixture of the sludge discharged from the mixing module 115 and the sawdust to the drying module 125. The mixed sludge transfer part 117 may be of various known types such as conveying the mixture of sawdust and sludge by a conveyor system or a pumping method inside a predetermined pipe.

Meanwhile, in the solid raw material manufacturing system according to the present embodiment, the first function and harmfulness adjustment module 121 is provided in the middle of the transfer path through which the mixture is transferred.

The first function and harmful regulation module 121 includes a measuring part for measuring the degree of moisture and pest content, and a supplying part for supplying predetermined chemicals such as water or harmful substances to the mixture.

The measuring part for measuring the degree of water or harmful content in the mixture may be one of various known measuring devices, and the chemical agent for supplying predetermined moisture or removing harmful substances may be supplied by a spraying method using a spray or the like .

The solid raw material manufacturing system 100 according to the present embodiment is provided with a separate control module 198 in which the control module 198 and the first function and harmful control module 121 are electrically connected to each other And a medicine or the like for removing moisture or harmful substances to be replenished with the mixture may be supplied according to the measured value through the measuring unit in real time.

 Also, the mixture of the sludge and the sawdust through the first function and harmful control module 121 is transferred to the drying module 125 and then subjected to a primary drying process.

The drying module 125 includes a case having a predetermined space therein. The sawdust and the sludge mixture are introduced into the case, and then the drying module 125 is rotated by the drying rotary shaft 126 and the drying mixing wing 128, So that the sawdust and the sludge mixture are dried.

The sawdust and the sludge mixture (hereinafter also referred to as a "raw material mixture") dried through the drying module 125 are discharged to the outside through a discharge device 131 provided in a separate drying module 125, And is conveyed to the forming module 140.

The second function and harmful control module 133 and the dry mixed sludge sort crushing section 135 are provided between the drying module 125 and the pellet forming module 140 to adjust the moisture content and harmfulness of the raw material mixture after drying So that it can be measured and adjusted in a secondary manner. Accordingly, the moisture content of the raw material mixture flowing into the pellet forming module 140 and the removal of harmful substances are performed secondarily, and the size of the raw material assembly is adjusted through the screen crushing section 135, So as to facilitate molding thereof.

The second function and harmful control module 133 is also electrically connected to the control module 198 and is controlled in real time by the control module 198. The second function and harmful control module 133 is connected to a predetermined measurement unit and a predetermined moisture supply or harmful substance It is a matter of course that a chemical feed for the removal is applied.

In addition, the pellet forming module 140 receives the raw material mixture and processes the solid raw material into a predetermined pellet form, which will be described later.

The solid raw material processed in the pellet forming module 140 is further dried and cooled through the drying and cooling modules 165 and 175 separately provided.

The drying and cooling module includes a secondary drying unit 165 for supplying a predetermined amount of water or high temperature to the pellets, a cooling unit 175 for cooling the pellets by supplying cold air after receiving the solid raw material from the secondary drying unit 165 ).

The solid raw material cooled by the secondary drying unit 165 and the cooling units 165 and 175 is stored in a separate storage tank 181 or the like and is then configured to be selectively carried out by a moving vehicle or the like.

2 is a schematic view of a drying cooling module applied to a solid raw material manufacturing system according to an embodiment of the present invention.

As described above, the drying cooling modules 165 and 175 include a secondary drying unit 165 and a cooling unit 175.

The secondary drying unit 165 includes a main case 161 having an inlet 162 and a discharge unit 164 through which the solid raw material flows and an external appearance of the main case 161. In the main case 161, And a secondary drying transfer unit 167 for transferring the solid raw materials formed from the upper side to the lower side. The secondary drying transfer unit 167 may be a conveyor type and may be configured to allow steam to pass through the upper and lower sides.

The secondary drying transfer unit 167 is disposed to transfer the solid raw material from one side to the other side of the secondary drying transfer unit 167. The solid secondary transfer unit 167 transfers the solid raw material from the upper secondary drying transfer unit 167 to the lower secondary drying transfer unit 167, The position is arranged to be automatically transmitted.

The secondary drying unit 165 further includes a steam supply unit 168 and a hot air supply unit 169 for supplying predetermined steam and hot air into the main case 161 at one side of the main case 161 . At this time, by applying the steam supply unit 168, it is possible to prevent a shape change or destruction that may occur in the solid raw material from occurring when only hot air is supplied.

Likewise, the cooling unit 175 includes an auxiliary case 171 having an inlet 172 and an outlet 174 through which the solid raw material is introduced and discharged, an outer case 171, upper and lower ends, And a cooling transfer section 177 through which the solidified raw material is transferred. The cooling transfer section 177 may be formed as a conveyor, and may be configured to allow steam to pass through the steam up and down.

The cooling unit 175 is provided at one side of the auxiliary case 171 with a blowing unit 178 for supplying predetermined air into the auxiliary case 171. At this time, it is preferable that cooling air is supplied to the air supplied by using the blowing unit 178 applied to the cooling unit 175.

As described above, the solid raw material manufacturing system according to the present embodiment can increase the transfer time of the solid raw material by applying the secondary drying transfer unit 167 and the cooling transfer unit 177, which are formed by a conveyor system, So that sufficient drying and cooling effects can be obtained.

Also, since the secondary drying transfer unit 167 can simultaneously provide high temperature and humidity, it is possible to prevent a defective product which may be caused when sudden hot air or cold air is supplied to the initially generated solid raw material Bring it.

FIG. 3 is a cross-sectional view schematically showing a pellet molding module applied to a solid raw material production system according to an embodiment of the present invention, and FIG. 4 is a perspective view of the pellet molding module shown in FIG.

3 and 4, the pellet molding module 140 includes a body portion 141 having an outer shape and formed with a circular drum-like space portion in an upper portion thereof, and a body portion 141 having a circular drum- A raw material mixture inlet 142 and a solid raw material outlet 143 discharged after processing the introduced raw material mixture into a predetermined type of solid raw material.

The rotary shaft 145 is rotatably mounted on the upper and lower portions of the body 141 and the rotary shaft 145 is installed on the body 141 so as to be vertically movable.

Also, a main rotation part 146 coupled to the rotation shaft 145 to rotate together with the rotation shaft 145 is provided on the side of the space above the body part 141. Here, the main rotation part 146 has a circular drum shape.

The auxiliary rotation shaft 148 is provided at a predetermined interval along the main rotation part 146 and is further provided with a pressing wheel part 147 rotatably installed on the auxiliary rotation shaft 148.

At this time, both the main rotation part 146, the auxiliary rotation shaft 148, and the pressing wheel part 147 are installed to rotate together with the rotation shaft 145 without interference on the space above the body part 141.

The supporting board part 151 is provided at the lower part of the pressing wheel part 147 to have a position in contact with the pressing wheel part 147 or a predetermined distance from the pressing wheel part 147, 151 are provided with a plurality of pellet discharge grooves 152 in a vertically penetrating manner.

The first support part 153 is provided along the circumference of the rotation shaft 145 in a state that the support board part 151 is fixed to the rotation shaft 145 below the support board part 151, And the second support part 155 is fixed to the body part 141 at a spaced position.

An elastic member 145 is provided to press the rotation shaft 145 downward between the first support portion 153 and the second support portion 155 and to return the rotation shaft 145 to the original position when the external force is removed. (158).

A motor portion 159 for rotating the rotation shaft 145 is provided below the body portion 141.

Meanwhile, the pellet forming module 140 applied to the solid raw material manufacturing system 100 according to the present embodiment is further provided with a pressing portion 157 configured to continuously press the rotation shaft 145 downward.

Here, the pressurizing portion 157 may be a predetermined hydraulic piston-cylinder configuration. The rotation shaft 145 can be maintained in a downwardly pressed state by the operation of the pressing portion 157 and the pressing force of the pressing portion 157 can be controlled by adjusting the pressing force of the pressing portion 157, The degree of pressing between the supporting board portions 151 is also adjusted.

Therefore, by adjusting the degree of pressurization of the raw material mixture conveyed between the pressing wheel part 147 and the supporting board part 151 according to the situation, the flexible operation is performed according to the state of the raw material mixture, that is, the state and size of the sludge and pellet mixture .

In addition, even when the pressing wheel 147, the elastic member 158, and the like are deformed and worn over time, a certain degree of pressure can be maintained and the quality of the solid raw material can be maintained.

Although not shown in detail, a pressure sensing unit for measuring the pressure applied to the pressure wheel unit 147 is further provided so that the degree of pressure of the pressing unit 157 is automatically adjusted according to the measured value of the pressure sensing unit .

FIG. 5 is a side view showing a drying module according to another embodiment of the present invention, and FIG. 6 is a perspective view showing an installation mode of a drying blade applied to the drying module of FIG.

The drying module 225 according to the present embodiment includes a drying casing 231 having an inner space formed therein and including an inlet 237, a discharge portion 238 and a hot air supply portion 239, And a drying motor 250 for rotating the drying shaft 242 is installed in the tubular drying shaft 242. The drying shaft 242 is hollow and has a hollow inside along the length direction.

A drying blade 240 is provided at predetermined intervals along the longitudinal direction of the drying shaft 242.

A space regulating board 232 provided in a state of being in contact with the inner side of the drying casing 231 with a space inside the drying casing 231 and a moving unit 230 for moving the space regulating board 232 . Here, the moving part 230 may be a piston-cylinder type structure.

The drying shaft 242 is provided with a discharge hole 243 at predetermined intervals and a drying blade 240 is installed at a position corresponding to the discharge hole 243.

One discharge hole 243 of the plurality of discharge holes 243 is disposed outside the drying casing 231 so that moisture generated during the drying operation can be discharged to the outside at any time.

The drying blade 240 includes an absorption part 247 installed at a position corresponding to the discharge hole 243, a mesh part 246 installed at both sides of the absorption part 247, And a cover portion 245 for covering the outside of the mesh portion 246.

The cover portion 245 is made of a rigid material having heat resistance, and the penetrating portion 248 is provided at predetermined intervals.

After the sludge and the pellet mixture are introduced into the drying casing 231, the drying module 225 according to the present embodiment closes the inlet and the outlet, and supplies hot air to the drying blade 240, The drying process proceeds while rotating.

At this time, moisture flows into the drying blade 240 through the penetration portion 248 of the cover portion 245. The moisture thus introduced is absorbed by the absorption portion 247 and then discharged through the discharge hole 243, So that it can be discharged to the outside. Of course, substances other than moisture are filtered by the mesh portion 246.

The moisture in the mixture can be discharged to the outside through the drying blade 240 having a large area.

In the meantime, the drying module 225 according to the present embodiment may instantaneously reduce the internal space of the drying casing 231 by moving only the space control board 232 without continuously supplying hot air, thereby increasing the internal temperature as a whole Thus, the drying efficiency can be increased.

It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is obvious to them. Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

For example, the configuration of the drying module 225 according to another embodiment of the present invention may be applied to the mixing module. In this case, the moisture removal effect will also be obtained during the mixing process of the sludge and the sawdust.

100: Solid raw material manufacturing system 101: Sludge storage module
103: Sludge discharge conveyor 105: Sawdust storage module
107: sawdust feeder 109: sawdust crusher
111: sawdust discharge conveyor 115: mixing module
121: first function and harmful control module 125: drying module
126: Dry rotary shaft 128: Dry mixing wing
133: Second function and harmful control module 135: Mixed sludge crushing section
140: Pellet forming module 142: Raw material mixture inlet
143: Pellet forming section 145:
146: main rotating part 147: pressing wheel part
148: auxiliary rotation shaft 151: support board part
152: pellet discharge hole 153: first support portion
157: pressing portion 158: elastic member
165: Secondary drying unit 175: Cooling unit
198: Control module 225: Drying module
230: moving part 231: drying casing
232: space control board 240: drying blade
242: drying shaft 243: discharge hole
245: cover part 246: mesh part
247: absorption part

Claims (5)

A sludge storage module in which sludge is stored;
A sawdust storage module in which sawdust is stored;
A mixing module for supplying and mixing sludge and sawdust from the sludge storage module and the sawdust storage module;
A drying module for transferring a mixture of sludge and sawdust from the mixing module to dry the mixture to produce a raw material mixture;
A first function and a harmful control module for controlling moisture content by supplying moisture to the mixture conveyed from the mixing module to the drying module; And
A pellet forming module for receiving a raw material mixture from the drying module to form a solid raw material;
≪ / RTI > The method according to claim 1,
A second function and a harmful regulation module for controlling water content by supplying moisture to the raw material mixture supplied from the drying module to the pellet molding module; And
A control module for controlling moisture supplied in electrical connection with the first function and harmful regulation module and the second function and harmful regulation module;
≪ / RTI >
Solid raw material manufacturing system. The method according to claim 1,
Further comprising a cooling module for receiving and cooling the shaped solid material in the pellet molding module,
The cooling module includes a secondary drying unit for supplying water and hot air to the pellets, a cooling unit for supplying the solid raw material from the secondary drying unit and then supplying cold air to the supplied solid raw material to cool the solid raw material;
/ RTI >
Solid raw material manufacturing system. The method according to claim 1,
Further comprising a mixed sludge crusher for crushing the mixture conveyed from the mixing module to the drying module,
Solid raw material manufacturing system. The method according to claim 1,
The pellet molding module comprises:
A body portion having an accommodating portion having an outer appearance and accommodated and supplied with a raw material mixture;
A supporting board part provided below the receiving part and having a solid material discharge groove;
A pressing wheel portion provided on the body portion to be discharged through the solid material discharge groove by pressurizing the raw material mixture contained in the receiving portion; And
A pressing portion provided on the body portion to adjust a pressing degree of the pressing wheel portion;
/ RTI >
Solid raw material manufacturing system.

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