KR102400306B1 - Contaminant dehydrator with improved dehydration by air pressure - Google Patents

Abstract

The present invention relates to a contaminant dehydrator for dewatering contaminants in order to reduce the moisture content of contaminants. In the contaminant dehydrator with improved dehydration by pneumatic pressure according to an embodiment of the present invention, a dehydration body having an inlet for introducing contaminants and a main body outlet through which dehydrated contaminants are discharged through the inlet, installed inside the dewatering body A dehydration cylinder formed with a plurality of dehydration holes for discharging water dehydrated from the contaminants to the outside, forming a passage for moving contaminants introduced into the inlet to the main body outlet, rotating inside the dehydration cylinder and rotating the dewatering through the inlet A transfer screw having a screw shaft installed in parallel at the center of the dewatering cylinder and screw blades spirally formed around the screw shaft to forcibly transfer contaminants entering the cylinder toward the main body outlet, and the transfer screw A screw driving unit for driving the conveying screw so as to rotate and transport the contaminants, and an air dehydrating unit connected to the main body outlet and spraying air to the contaminants discharged to the main body outlet for dehydration, wherein the air dehydrating unit includes the main body outlet A chamber casing that forms an air chamber in a portion of the air chamber and has an air supply port for supplying air to the inside of the air chamber, a blower for forcibly sucking and supplying air to the air supply port, and installed inside the chamber casing A chamber cylinder having a plurality of permeation holes through which the air passes through the air supplied to the air supply port and dehydrates the contaminants while guiding the movement to the chamber outlet for discharging contaminants discharged through the main body outlet to the outside of the chamber casing includes Therefore, the water content can be lowered by improving the dehydration property of contaminants.

Description

Contaminant dehydrator with improved dehydration by air pressure

The present invention relates to a contaminant dehydrator for dewatering contaminants in order to reduce the moisture content of contaminants.

In general, contaminants are mixed with wastewater into sewage or wastewater treatment plants or relay pumping stations, and in a state in which the contaminants are immediately filtered by a screen, the water content of the wastewater is high in the contaminants, so there is a problem in that it is not easy to treat the contaminants.

Accordingly, contaminants are filtered out from the wastewater, and then dehydration is performed to lower the moisture content of the contaminants.

The conventional apparatus for dewatering foreign matter has been disclosed as "a foreign matter dewatering apparatus" in Korean Patent Publication No. 10-1983357 (2019.9.10. Announcement).

The above-described conventional dewatering device includes a motor for rotating the wing portion; A safety case protecting the motor shaft and the shaft formed on one side of the wing by connecting a fitting; a bearing housing case protecting the shaft formed on one side of the wing and the bearing housing included on the other side of the shaft; a dewatering unit formed in the longitudinal direction and dewatering and compressing the inflowing sewage and wastewater sludge or food waste including a wing unit without a shaft therein; an inlet included on one side of the dewatering unit to introduce sludge sludge or food waste; It is included on the other side of the dewatering unit and is included in the discharge unit and the inside of the dewatering unit through which the dewatering cake compressed in the dewatering unit is discharged, is formed in the longitudinal direction and is formed with a plurality of perforated or grid-patterned sieves on the front side of the sludge or food waste. It was composed including a perforated part to separate contaminants and leachate.

In the conventional contaminant dewatering device having such a configuration, the screw does not contract even when the force generated as the contaminants are dehydrated is applied, thereby reducing the time and cost of repairing according to the shrinkage of the screw.

However, since the contaminant dewatering device only dehydrates the contaminants in the form of smoothly passing through a sieve, the dewaterability of contaminants is reduced, and there is a problem that the moisture content of contaminants is high even through the dehydration device.

The present invention has been devised to solve the above problems, and the problem to be solved by the present invention is the impact force generated when the air collides with the contaminants by spraying air to the contaminants from the air dehydrator and the evaporation power by exchanging moisture with each other In addition to increasing the dehydration of contaminants and lowering the moisture content by An object of the present invention is to provide a contaminant dehydrator with improved dewatering properties by pneumatic pressure that can further improve the water content and further lower the moisture content.

In addition, compressed air is injected through the screw shaft into the dehydration cylinder where contaminants are moved by the axial air injection unit to improve the dehydration of contaminants, and at the same time, fresh water is supplied through the axial air injection unit to clean the inside of the dewatering body. An object of the present invention is to provide a contaminant dehydrator with improved dehydration properties by means of a pneumatic pressure.

In the contaminant dehydrator with improved dehydration by pneumatic pressure according to an embodiment of the present invention for achieving the above object, the dehydration body is formed with an inlet for putting contaminants in and a main body outlet through which dehydrated contaminants are discharged through the inlet, A dehydration cylinder installed inside the dewatering body to form a passage for moving contaminants introduced through the inlet to the main body outlet and having a plurality of dewatering holes for discharging water dehydrated from the contaminants to the outside, rotating inside the dewatering cylinder and a screw shaft installed in parallel at the center of the dehydration cylinder to forcibly transport contaminants that have entered the dehydration cylinder through the inlet toward the main body outlet, and a screw blade formed in a spiral shape around the screw shaft. A conveying screw, and a screw driving part for driving the conveying screw so that the conveying screw rotates to transport contaminants, and an air dehydration unit for dehydrating by spraying air to the contaminants that are connected to the main body outlet and discharged to the main body outlet, The air dehydration unit forms an air chamber in a portion of the main body discharge port, a chamber casing in which an air supply port for supplying air to the inside of the air chamber is formed, a blower for forcibly sucking air into the air supply port and supplying it; And installed inside the chamber casing to guide the movement to the chamber outlet for discharging the contaminants discharged to the main body outlet to the outside of the chamber casing, the air supplied to the air supply port passes through the air to dehydrate to dehydrate contaminants and a chamber cylinder having a plurality of through-holes formed therein.

The air dehydration unit includes a pressure shock unit that changes the pressure inside the air chamber to dehydrate by applying an impact to the contaminants according to an instantaneous pressure change in the air chamber, and the pressure shock unit opens a part of the chamber casing A pressure ball, a pressure cover that changes the internal pressure of the air chamber by momentarily sealing the pressure ball, and a repetitive driving unit that the pressure cover repeatedly opens and closes the pressure ball to repeatedly change the internal pressure of the air chamber may include

It may include an axial air injection unit for supplying compressed air through the screw shaft to spray air from the inside of the dehydration cylinder to dehydrate contaminants passing through the dehydration cylinder.

The axial air injection unit penetrates in the longitudinal direction of the screw shaft and is an air supply passage for supplying air through the screw shaft, and a plurality of air supply passages are provided around the screw shaft to inject the air supplied to the air supply passage from the inside of the dehydration cylinder. A nozzle hole formed to inject air through the air supply passage, a supply hole formed on the screw shaft to supply air to the air supply passage, and a periphery of the supply hole receiving compressed air from the outside to supply the supply It may include a supply housing that supplies the ball.

According to the present invention, the contaminants dehydrated in the dewatering body are sprayed with air from the air dehydrator, and the contaminants are dehydrated by air once again to lower the moisture content of contaminants, and the internal pressure of the air injection unit is reduced by the pressure shock unit. By changing the air to impact the contaminants, it is possible to increase the dehydration property of the contaminants and lower the moisture content of the contaminants.

In addition, the moisture content of contaminants is lowered as the dehydration property of contaminants is improved by spraying air to contaminants moving to the dewatering body by the accumulator spraying unit. By spraying, the dewatering body can be easily cleaned.

1 is a side cross-sectional view schematically showing a foreign matter dehydrator with improved dehydration by pneumatic according to an embodiment of the present invention.
2 is a plan cross-sectional view schematically showing a foreign matter dehydrator with improved dehydration by pneumatic pressure according to an embodiment of the present invention.
FIG. 3 is an enlarged view of part “A” of FIG. 1 , and shows a pressure impact part.
FIG. 4 is an enlarged view of part “A” of FIG. 1 , and shows an operating state of the pressure shock unit.
5 is a schematic side cross-sectional view for explaining the axial air injection unit of the contaminant dehydrator with improved dehydration by pneumatic according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in FIGS. 1 and 2 , the contaminant dehydrator 100 having improved dehydration performance by pneumatic pressure according to an embodiment of the present invention may include a dewatering body 110 .

The dehydration body 110 may supply contaminants and then discharge them after dehydration.

The dewatering body 110 may be formed in a box shape to accommodate impurities, and an inlet 111 for introducing impurities into the dewatering body 110 may be formed at an upper portion of one side of the dewatering body 110 .

In addition, the main body outlet 113 through which dehydrated contaminants are discharged may be formed on the other side of the dewatering body 110 opposite to the position of the inlet 111 of the dewatering body 110 .

The dewatering body 110 may be installed to be spaced apart from the floor by a support frame, and a drain 115 for discharging water dehydrated from contaminants to the outside of the dewatering body 110 is formed in the lower portion of the dewatering body 110 . can

In addition, a fresh water supply port for supplying fresh water to clean the inside of the dewatering body 110 by supplying water to the inside of the dewatering body 110 from the outside may be formed on the lower side of the dewatering body 110 .

As shown in FIGS. 1 and 2 , the contaminant dehydrator 100 having improved dewatering properties by pneumatic pressure according to an embodiment of the present invention may include a dehydration cylinder 120 .

The dewatering cylinder 120 may be located inside the dewatering body 110 , and the dewatering cylinder 120 may be installed to be spaced apart from the bottom of the dewatering body 110 .

The dewatering cylinder 120 has an inlet hopper 121 through which contaminants introduced into the inlet 111 are introduced around one end thereof, and the other end of the dewatering cylinder 120 is at the main outlet 113 of the dewatering body 110. can be connected

Contaminants are introduced into the dewatering cylinder 120 through the inlet hopper 121 into the dewatering cylinder 120, and the introduced contaminants are naturally moved through the main body outlet 113 by the transfer screw 130 to be described below. As a result, the dehydrated water may fall to the bottom of the dewatering body 110 through the dehydration hole and be drained to the outside through the drain hole 115 of the dewatering body 110 .

The dewatering cylinder 120 may be manufactured in a cylindrical form by rolling and folding a perforated plate having a plurality of dewatering holes formed therein, a plurality of spaced rings in a cylindrical form to be spaced apart from each other, or a plurality of bars by separating them in a circumferential direction in a cylindrical form. there is.

The dehydration cylinder 120 is formed so that the height of the portion where the main body outlet 113 is located is higher than the portion where the inlet 111 is located, thereby generating resistance to the discharge of contaminants, thereby increasing the dehydration time and dehydration. .

As shown in FIGS. 1 and 2 , the contaminant dehydrator 100 having improved dehydration by pneumatic pressure according to an embodiment of the present invention may include a transfer screw 130 .

The transfer screw 130 is installed in parallel with the dehydration cylinder 120 inside the dewatering cylinder 120 and moves contaminants introduced into the inlet hopper 121 of the dewatering cylinder 120 to the main body outlet 113 as it rotates. can do it

The transfer screw 130 is installed in such a way that a rotating screw shaft 131 passes through the center of the dehydration cylinder 120, and the screw shaft 131 is wound around the screw shaft 131 in a spiral shape to transport contaminants. Wings 133 may be formed.

One end of the screw shaft 131 may protrude to the outside of the dewatering body 110 to be exposed, and the other end of the screw shaft 131 is a free end and may be located in a portion of the main body outlet 113 .

The screw shaft 131 may be supported by a bearing so that it can easily rotate in the dewatering body 110 .

As shown in FIG. 2 , the contaminant dehydrator 100 having improved dehydration by pneumatic pressure according to an embodiment of the present invention may include a screw driving unit.

The screw driving unit may rotate the conveying screw 130 so that the conveying screw 130 can transport contaminants while rotating.

In the screw driving unit, the driving sprocket 143 is connected to the driving motor 141 , and the driven sprocket 145 is installed on the screw shaft 131 protruding from the dewatering body 110 , so that the driving sprocket 143 and the driven sprocket 145 are installed. ) is connected to each other by the chain 147 so that when the driving motor 141 rotates the driving sprocket 143, the driven sprocket 145 rotates by the chain 147 to rotate the screw shaft 131. can be configured.

At this time, the end of the screw shaft 131 exposed through the dewatering body 110 may be supported by the support frame, and the part where the screw shaft 131 is supported in the support frame is supported by the bearing to ensure smooth rotation. can do.

1 to 2 , the contaminant dehydrator 100 having improved dehydration performance by pneumatic pressure according to an embodiment of the present invention may include an air dehydrator 150 .

The air dehydration unit 150 may dehydrate the contaminants by spraying air onto the contaminants.

The air dehydration unit 150 may include a chamber casing 151 , a blower 159 , and a chamber cylinder 155 .

The chamber casing 151 may be formed in the dewatering body 110 to surround the perimeter of the main body outlet 113 of the dewatering body 110 to form an air chamber 151a around the main body outlet 113, The chamber casing 151 facing the main body outlet 113 may be provided with a chamber outlet 153 through which contaminants dehydrated by air are discharged to the outside.

An air supply port 157 for supplying air to the inside of the air chamber 151a may be formed on the upper portion of the chamber casing 151 , and the lower portion of the chamber casing 151 is in communication with the lower portion of the dewatering body 110 , Water that is dehydrated to the lower part of the chamber casing 151 may flow into the lower part of the dewatering body 110 and be drained to the outside through the drain hole 115 of the dewatering body 110 .

Here, the chamber casing 151 may be formed integrally with the dewatering body 110 .

The chamber cylinder 155 can forcibly dehydrate the water attached to the contaminants by the air supplied to the air chamber 151a while the contaminants discharged through the main body outlet 113 pass.

One end of the chamber cylinder 155 may be connected to the main body outlet 113 of the dewatering body 110 , and the other end of the chamber cylinder 155 may be connected to the chamber outlet 153 .

The chamber cylinder 155 is in the shape of a pipe, and a plurality of permeation holes through which air can pass can be formed so that the air supplied to the inside of the air chamber 151a can be dehydrated while being supplied to the contaminants passing through the chamber cylinder 155. In addition, the penetration hole of the chamber cylinder 155 is formed to be larger than the dehydration hole of the dehydration cylinder 120 so that air supplied to the air chamber 151a can easily enter the inside of the contaminants.

On the other hand, the chamber cylinder 155 is formed such that the inner diameter gradually decreases from the main body outlet 113 of the dewatering body 110 to the chamber outlet 153, and is forcibly discharged to the main body outlet 113 by the transfer screw 130. As the contaminants become increasingly resistant toward the chamber outlet 153, the contaminants are forcibly compressed by the narrowing area, thereby reducing the volume of the contaminants discharged while performing dehydration.

The blower 159 may forcibly suck in external air and supply it to the air supply port 157 , and the blower 159 forcibly sucks in external air in the form of rotating a fan by a blower motor to supply the air supply port. It can be supplied through (157).

At this time, the main body outlet 113 and the air supply port 157 of the blower 159 may be connected to each other by a duct.

In the blower 159 , a heater heats the sucked air, and supplies the heated air to the air chamber 151a to evaporate moisture of the contaminants by the heated air.

The blower 159 may be implemented as an air compressor to spray high-pressure air into the chamber casing 151 to dehydrate the contaminants by pneumatic pressure.

1 , 3 and 4 , the air dehydrating unit 150 may include a pressure shock unit 160 .

The pressure impact unit 160 can improve the dehydration of contaminants by air by instantaneously changing the pressure inside the air chamber 151a.

The pressure shock unit 160 may include a pressure hole 161 , a pressure cover 163 , and a repeat driving unit.

The pressure hole 161 may be formed in a form in which a portion of the chamber casing 151 is cut and opened so that air inside and outside can flow.

The pressure cover 163 may change the pressure of the chamber casing 151 to increase as the pressure hole 161 is momentarily closed while the pressure hole 161 is opened.

The pressure cover 163 may be formed in a size corresponding to the pressure ball 161 or larger than the pressure ball 161, and the pressure cover 163 is a chamber casing in a direction perpendicular to the pressure ball 161. By sliding at 151 , the pressure ball 161 may be opened or the pressure ball 161 may be closed depending on the sliding direction.

The repetitive driving unit may repeatedly open and close the pressure cover 163 in the pressure hole 161 so that the internal pressure of the air chamber 151a can be repeatedly changed.

The repetitive driving unit may include a guide rod 167 , a driving half gear 165 , and a support spring 169 .

In the guide rod 167, the pressure cover 163 slides from the pressure hole 161 in the chamber casing 151 so that the pressure cover 163 is in close contact with the pressure hole 161 to close the pressure hole 161, As the pressure cover 163 is spaced apart from the pressure hole 161 , the movement of the pressure cover 163 in the chamber casing 151 may be guided to open the pressure hole 161 .

A plurality of guide rods 167 may be installed around the pressure cover 163, and a rack gear portion 167a in which a rack gear is formed by a preset length at any one end of the plurality of guide rods 167. can be formed.

The rack gear unit 167a may be located inside the chamber casing 151 .

The driving half gear 165 is formed only in a preset section with teeth meshing with the rack gear unit 167a, that is, within a preset angular range on the circumference of the driving half gear 165, and no teeth are formed in the namizer section. A non-disengaging portion 165a may be formed.

The driving half gear 165 moves the guide rod 167 only when the teeth are meshed with the rack gear part 167a, and the disengagement part 165a moves the rack gear part ( 167a), the engagement with the rack gear unit 167a may be released.

When the driving half gear 165 slides the pressure cover 163 in the direction of opening the pressure hole 161, the teeth and the rack gear part 167a mesh with each other, and the pressure cover 163 moves from the pressure hole 161. When spaced apart to the maximum, the disengagement portion 165a may be configured to be disengaged while entering the rack gear portion 167a.

The driving half gear 165 may be rotated by the gear motor 166, and the gear motor 166 rotates the driving half gear 165 in only one direction to generate electricity according to the change of the rotation direction of the gear motor 166. It is possible to prevent the consumption from increasing.

The support spring 169 is installed on the guide rod 167 so that when the pressure cover 163 opens the pressure hole 161 by the forcing force of the driving half gear 165, it is compressed to accumulate elastic force, and when the forcing force is released, it is accumulated. By the applied elastic force, the pressure cover 163 may move rapidly in the direction of sealing the pressure hole 161 to seal the pressure hole 161 .

The support spring 169 may be implemented as a compression coil spring in which elastic force is accumulated when compressed, and the support spring 169 may be installed for each guide rod 167 .

One end of the support spring 169 is supported on the inside of the chamber casing 151, the other end may be supported on the end of the guide rod 167, and the end of the guide rod 167 supports the support spring 169. A spring support may be formed.

Here, the guide rod 167 on which the rack gear part 167a is formed may be formed in a form in which the rack gear part 167a extends from the end at which the support spring 169 is supported.

For example, the support spring 169 is compressed when the pressure cover 163 opens the pressure hole 161 in a state in which the rack gear part 167a is meshed with the teeth of the drive board gear 165 to accumulate elastic force, and the drive board When the engagement with the rack gear portion 167a is released by the disengagement portion 165a of the gear 165, the guide rod 167 in the direction in which the pressure cover 163 seals the pressure hole 161 by the accumulated elastic force. ) by moving the pressure cover 163 to seal the pressure hole 161, it is possible to increase the pressure of the air chamber (151a).

The pressure shock unit 160 forms a pressure hole 161 on the upper portion of the chamber casing 151, and opens and closes the pressure hole 161 while the pressure cover 163 slides up and down from the top of the pressure hole 161. By doing so, while generating a pressure change from the upper part to the lower part of the air chamber (151a), the contaminants can be easily dehydrated by bombarding the air toward the lower part.

In this case, the pressure shock unit 160 may transmit not only the pressure change of the air, but also the vibration that impacts the pressure cover 163 to seal the pressure hole 161 to the contaminants, thereby improving the dehydration of the contaminants.

The repetitive driving unit may be implemented by a known cam structure that can repeatedly open and close the pressure hole 161 by the pressure cover 163 , a cylinder, a solenoid, or various types of mechanical structures.

As shown in FIGS. 1, 2 and 5 , the contaminant dehydrator 100 having improved dehydration by pneumatic pressure according to an embodiment of the present invention may include an axial air injection unit 170 .

The shaft air injection unit 170 may spray air from the screw shaft 131 so as to dehydrate the impurities by spraying air to the impurities passing through the transfer screw 130 .

The axial air injection unit 170 may include an air supply passage 171 , a supply hole, a nozzle hole 173 , and a supply housing 175 .

The air supply passage 171 may be formed to pass through the center of the screw shaft 131 along the longitudinal direction of the screw shaft 131 , and the air supply passage 171 is a screw located in the main body outlet 113 . The end positioned at the end of the shaft 131 may be sealed.

The air supply passage 171 may be formed from the screw shaft 131 to the portion exposed to the outside of the dehydration body 110 , and the air supply passage 171 located at the end exposed to the outside of the dehydration body 110 . A supply hole communicating with the air supply passage 171 in order to supply air to the air supply passage 171 from the outside may be formed at any one point around the screw shaft 131 at the end of the .

Here, the screw shaft 131 may be implemented as an empty pipe so that the inside of the pipe performs the function of the air supply passage 171 .

A nozzle hole 173 for dehydrating contaminants by spraying the air supplied to the air supply passage 171 to the outside may be formed in a portion of the screw shaft 131 where the screw blade 133 is positioned, and the nozzle hole ( The plurality of nozzle holes 173 may be formed to be spaced apart from each other around the screw shaft 131 , and a plurality of nozzle holes 173 may be formed to be spaced apart from each other along the longitudinal direction of the air supply passage 171 .

The supply housing 175 may be supplied with compressed air therein, and the supply housing 175 is formed to surround the circumference of the supply hole in the screw shaft 131 and air through the supply hole of the rotating screw shaft 131 . Air may be supplied through the supply passage 171 .

In the supply housing 175, the screw shaft 131 may pass through and may be located in a portion where the supply hole is formed, and in the portion where the screw shaft 131 penetrates in the supply housing 175, an O-ring is provided so that the supplied air does not leak to the outside. Or it may be hermetically sealed by a gasket.

Air compressed by the air compressor 179 may be supplied to the air supply passage 171 so that compressed air may be supplied, and the compressed air may be sprayed through the nozzle hole 173 , and the compressed air of the air compressor 179 may be injected. The used air may be supplied to the air supply passage 171 through the supply housing 175 .

On the other hand, the shaft air injection unit 170 has been described as spraying air, but when fresh water is supplied instead of air to the shaft air injection unit 170 , fresh water passes through the nozzle hole 173 to the inside of the dehydration cylinder 120 . While spraying, the inside of the dehydration cylinder 120 may be cleaned and the transfer screw 130 may be cleaned at the same time.

At this time, a first supply port 176 and a second supply port are installed in the supply housing 175 , and the compressed air from the air compressor 179 is supplied to the first supply port 176 and compressed by the screw shaft 131 . Dehydration is performed by spraying the dehydrated air, and cleaning can be performed by spraying fresh water from the screw shaft 131 by supplying cleaning from the water supply facility to the second supply port.

The operation and effect between each configuration described above will be described.

In the contaminant dehydrator 100 with improved dehydration performance by pneumatic according to an embodiment of the present invention, a dehydration cylinder 120 is installed inside the dewatering body 110, and a transfer screw 130 is installed in the dewatering cylinder 120. It is installed to rotate by the driving motor unit 140 .

A plurality of dewatering holes are formed in the dewatering cylinder 120 to drain the dehydrated water of contaminants, and a spiral screw blade 133 is formed in the transfer screw 130 around the screw shaft 131 to form a transfer screw ( As the 130) rotates, the contaminants introduced into the dehydration cylinder 120 by the spiral screw blades 133 are transferred toward the main body outlet 113 and are dehydrated.

A drain 115 for draining the dewatered water to the outside is formed in the lower portion of the dewatering body 110 , and a fresh water supply port for cleaning by spraying fresh water on the dewatering body 110 is formed.

An air dehydrating unit 150 may be installed in the portion of the dehydration body 110 where the main body outlet 113 is located, and the air dehydrating unit 150 forms an air chamber 151a around the main body outlet 113 . A chamber casing 151 is installed, and a chamber cylinder 155 connecting the main body outlet 113 and the chamber outlet 153 is installed in the chamber casing 151 .

In addition, the chamber casing 151 may be provided with an air supply port 157 for receiving air from the blower 159 and supplying it to the air chamber 151a, and the lower portion of the chamber casing 151 is a chamber cylinder 155 . In order to discharge the water discharged from the dewatering body 110 through the drain hole 115 of the can be communicated with each other.

On the other hand, the chamber casing 151 is provided with a pressure impact unit 160 for changing the internal pressure of the air chamber (151a) in order to improve the dewatering ability in contaminants.

The pressure impact unit 160 has a pressure ball 161 penetrating through the chamber casing 151, and the pressure cover 163 slides through the pressure hole 161 by the guide rod 167 to the pressure ball 161. is installed to open and close, and the pressure cover 163 changes the internal pressure of the air chamber 151a while repeatedly opening and closing the pressure hole 161 by the repetitive driving unit.

In the repeat drive unit, a rack gear unit 167a is formed on the guide rod 167, and the rack gear unit 167a is connected by a driving half gear 165 having a disengagement unit 165a in which some teeth are not formed. , the driving half gear 165 is rotated by the driving motor 141, and on the guide rod 167, the pressure cover 163 is attached to the support spring 169 so that an elastic force acts in the direction to seal the pressure hole 161. supported by

On the other hand, the dewatering body 110 is configured with an axial air injection unit 170 to improve the dewatering properties of contaminants by spraying air to the contaminants by the pressure of the injected air, and the axial air dispensing unit 170 is a screw shaft. An air supply passage 171 is formed in the 131 , and a plurality of nozzle holes 173 are formed along the longitudinal direction of the screw shaft 131 in a portion where the screw blades 133 are formed on the screw shaft 131 . .

In addition, a supply hole for supplying compressed air to the air supply passage 171 is formed in a portion of the screw shaft 131 exposed to the outside of the dewatering body 110 , and the supply hole is surrounded by the supply housing 175 . Compressed air through the supply housing 175 is provided to the supply hole.

In the contaminant dehydrator 100 having improved dehydration performance by pneumatic pressure according to the embodiment of the present invention configured as described above, contaminants are introduced into the dewatering cylinder 120 into the inlet 111 of the dewatering body 110, and the driving motor unit ( The contaminants are transferred toward the main body outlet 113 of the dewatering cylinder 120 by the screw blades 133 of the transfer screw 130 rotated by the 140).

As the contaminants are transferred toward the main body outlet 113 of the dehydration cylinder 120, the water attached to the contaminants is dehydrated from the contaminants through the dehydration hole of the dehydration cylinder 120, and the dehydrated water is transferred to the lower part of the dewatering body 110. and is drained to the outside through the drain hole 115 .

On the other hand, contaminants dehydrated in the dewatering body 110 enter the chamber cylinder 155 of the air dehydration unit 150 through the main body outlet 113, and contaminants that have entered the air dehydration unit 150 enter the chamber casing 151 ), while air is supplied through the air supply port 157 of the chamber cylinder 155, as the air passes through the contaminants that pass through the chamber cylinder 155, moisture is exchanged with the air to dehydrate and at the same time, the air collides with the contaminants and applies an impact to the contaminants. to dehydrate

The contaminants that have entered the chamber cylinder 155 are continuously supplied from the dewatering body 110 by the transfer screw 130, while pushing the contaminants located in the chamber cylinder 155 to the chamber outlet 153, the chamber outlet 153. The dehydrated contaminants are discharged through the

Since the diameter of the chamber outlet 153 of the chamber cylinder 155 is smaller than the diameter of the main body outlet 113, the contaminants discharged to the chamber outlet 153 are pressurized while dehydration is performed and the volume of the chamber is compressed. It is discharged to the outlet (153).

On the other hand, in the air dehydration unit 150, the pressure shock unit 160 operates to increase dehydration according to the collision of air, and the pressure shock unit 160 operates the gear motor 166 when the gear motor 166 rotates. ), the driving half gear 165 is rotated, and the teeth of the driving half gear 165 are engaged with the rack gear part 167a to raise the guide rod 167. While compressing the support spring 169, the pressure ball By separating the pressure cover 163 from the 161, the pressure hole 161 is opened.

And, as the drive half gear 165 continuously rotates, the disengagement part 165a of the drive half gear 165 part is released from gear meshing with the rack gear part 167a of the guide rod 167, the support spring ( 169), the pressure door closes the pressure hole 161 quickly.

When the pressure door opens the pressure hole 161, the air inside the air chamber 151a is freely discharged through the pressure hole 161, but when the pressure door urgently closes the pressure hole 161, the As external air flows into the inside of the air chamber 151a through the pressure hole 161, the pressure inside the air chamber 151a is increased, and an impact is generated on the contaminants by the increased pressure of the air. Dehydration can be improved.

At this time, the repetitive driving unit repeatedly operates the pressure cover 163 to open and close the pressure hole 161, thereby generating a repetitive pressure change in the air chamber 151a of the chamber casing 151, thereby reducing the dehydration of contaminants. can be improved

In addition, when the contaminants pass through the inside of the dehydration cylinder 120, the axial air injection unit 170 injects air to the contaminants, and the axial air injection unit 170 is compressed air provided from the air compressor 179. The air supplied to the air housing and supplied to the air housing enters the air supply passage 171 through the supply hole.

At this time, since the air supplied to the air housing is supplied as a whole around the screw shaft 131 , even if the supply hole rotates as the screw shaft 131 rotates, compressed air can be provided to the air supply passage 171 .

And, the compressed air supplied to the air supply passage 171 is sprayed into the dehydration cylinder 120 through the nozzle hole 173 formed in the screw shaft 131, and the air to the contaminants passing through the dehydration cylinder 120 is applied. Dehydration can be improved in the form of spraying.

On the other hand, when cleaning the dewatering body 110, the lower part of the dewatering body 110 is cleaned by supplying fresh water through the fresh water supply port, and the inside of the dewatering cylinder 120 is cleaned from the water supply facility in the air housing instead of compressed air. Cleaning may be performed in the form of spraying fresh water through the nozzle hole 173 of the screw shaft 131 by supplying .

Therefore, the contaminant dehydrator 100 having improved dehydration by pneumatic according to an embodiment of the present invention can improve the dehydration of contaminants by spraying air through the air dehydrating unit 150 to dehydrate the contaminants discharged. In addition, the air dehydration unit 150 is provided with a pressure shock unit 160 for applying an impact to the air by converting the pressure of the air to the contaminants, thereby improving the dewatering properties of contaminants, it is possible to lower the moisture content of contaminants.

In addition, by injecting compressed air from the screw shaft 131 by the axial air injection unit 170, the moisture content can be lowered by improving the dehydration of contaminants in the form of spraying compressed air to contaminants passing through the transfer screw 130. there is.

In addition, it is possible to easily clean the inside of the dehydration cylinder 120 by supplying fresh water instead of compressed air to the accumulator air injection unit 170 .

In the above, embodiments of the present invention have been described, but the scope of the present invention is not limited thereto, and it is easily changed by those of ordinary skill in the art to which the present invention pertains from the embodiments of the present invention and recognized as equivalent. including all changes and modifications to the scope of

100: impurities dehydrator with improved dehydration by pneumatic
110: spin-drying body 111: inlet
113: main body outlet 115: drain port
120: dehydration cylinder 121: inlet hopper
130: feed screw 131: screw shaft
133: screw blade 140: drive motor unit
141: drive motor 143: drive sprocket
145: driven sprocket 147: chain
150: air dehydration unit 151: chamber casing
151a: air chamber 153: chamber outlet
155: chamber cylinder 157: air supply port
159: blower 160: pressure impact unit
161: pressure ball 163: pressure cover
165: drive panel gear 165a: disengagement part
166: gear motor 167: guide rod
167a: rack gear unit 169: support spring
170: shaft air injection unit 171: air supply flow path
171a: supply hole 173: nozzle hole
175: supply housing 176: first supply port
179: air compressor

Claims (4)

A dewatering body in which an inlet for putting contaminants in and a main body outlet through which dehydrated contaminants are discharged through the inlet are formed;
A dehydration cylinder installed inside the dewatering body to form a passage for moving contaminants introduced into the inlet to the main body outlet, and having a plurality of dewatering holes for discharging water dehydrated from the contaminants to the outside;
A screw shaft which rotates inside the dehydration cylinder and is installed in parallel at the center of the dehydration cylinder to forcibly transport contaminants that have entered the dehydration cylinder through the inlet toward the main body outlet, and a spiral shape around the screw shaft A transfer screw having a screw blade formed of, and
A screw driving part for driving the conveying screw so that the conveying screw is rotated to convey contaminants, and
It is connected to the main body outlet and includes an air dehydrating unit for dehydrating by spraying air to the contaminants discharged to the main body outlet,
The air dehydrator
A chamber casing in which an air chamber is formed in a portion of the main body outlet, and an air supply port for supplying air to the inside of the air chamber is formed;
a blower for forcibly sucking air into the air supply port and supplying it; and
It is installed inside the chamber casing and guides movement to the chamber outlet for discharging contaminants discharged through the main body outlet to the outside of the chamber casing, and the air supplied to the air supply port passes through the air to dehydrate to dehydrate contaminants. It includes a chamber cylinder in which a plurality of through holes are formed,
The air dehydration unit includes a pressure shock unit that changes the pressure inside the air chamber to dehydrate by applying an impact to the contaminants according to an instantaneous pressure change in the air chamber,
The pressure impact unit includes a pressure ball that opens a part of the chamber casing, a pressure cover that changes the internal pressure of the air chamber by momentarily sealing the pressure ball, and the pressure cover repeatedly opens and closes the pressure ball to make the air A contaminant dehydrator with improved dehydration performance by pneumatic pressure, characterized in that it includes a repeating drive unit that repeatedly changes the internal pressure of the chamber. delete According to claim 1,
A contaminant dehydrator with improved dehydration performance by pneumatic pressure, characterized in that it comprises an axial air injection unit for supplying compressed air through the screw shaft to dehydrate contaminants passing through the dehydration cylinder by injecting air from the inside of the dehydration cylinder. . 4. The method of claim 3,
The axial air injection unit
An air supply passage passing through the longitudinal direction of the screw shaft to supply air through the screw shaft,
A plurality of nozzle holes are formed around the screw shaft to spray the air supplied to the air supply passage from the inside of the dehydration cylinder to spray air through the air supply passage;
a supply hole formed in the screw shaft to supply air to the air supply passage; and
A contaminant dehydrator with improved dehydration performance by pneumatic pressure, comprising a supply housing that surrounds the periphery of the supply hole and receives compressed air from the outside and supplies it to the supply hole.

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