Apparatus for removing moisture and dust from coal

Abstract

The present invention relates to an apparatus for removing moisture and dust from coal and comprises: a transfer unit for transferring coal seated on the upper surface thereof to the front side; a shielding unit which has a length in the front-rear direction while covering the upper part of the transfer unit, and an inner movement space of which is opened in the front-rear direction; a dust suction unit for suctioning dust from the front side of the transfer unit; a housing which is coupled to a partial section of the shielding unit to cover the upper part of the transfer part, and the inner cooling space of which is opened in the front-rear direction; a refrigerant circulation unit disposed to have a length in the cooling space and having a fluid channel formed along the inside thereof to allow a refrigerant to circulate therein; and a cooling unit to which opposite lengthwise sides of the refrigerant circulation unit are connected, and which circulates the refrigerant along the fluid channel while cooling the refrigerant to a set temperature.

Description

Coal moisture and dust removal device

[0001] The present invention relates to a coal moisture and dust removal device, and more particularly, to a coal moisture and dust removal device capable of minimizing the occurrence of condensation when sucking dust during a coal transport process.

[0002] Typically, facilities that use large quantities of coal as raw material, such as thermal power plants, use coal conveying equipment to continuously supply coal.

[0003] This coal transport device is composed of a conveyor that is installed rotatable to move coal, a driving member for rotating the conveyor, and a cover member that is connected to the upper part of the conveyor to prevent dust from flying.

[0004] In addition, conventional coal conveying equipment is equipped with a dust collector to suck up dust generated during the coal conveying process, and the suction pipe of the dust collector sucks up dust in the discharge direction of the conveyor.

[0005] However, in the case of conventional coal transport equipment, condensation frequently occurred due to the outside temperature when dust was sucked into the suction pipe of the dust collector in the winter when the outside temperature was low, and when condensation occurred inside the suction pipe, coal dust clumped together, causing problems such as a reduction in the cross-sectional area of ​​the suction path or blockage, making maintenance difficult.

[0006] A prior art document related to the present invention is Korean Patent Publication No. 10-2022-0022204 (publication date: February 25, 2022), which discloses a dust collection system for a tripper room of a coal transport facility of a power plant.

[0007] The purpose of the present invention is to provide a coal moisture and dust removal device that can minimize the phenomenon of coal dust clumping and blocking due to condensation that may occur in a dust intake path during coal transport.

[0008] The coal moisture and dust removal device according to the present invention comprises a transfer unit that transfers coal settled on an upper surface forward, a shield unit that covers the upper part of the transfer unit and has a length in the front and rear and an internal movement space that is open in the front and rear, and a dust suction unit that sucks dust in the front of the transfer unit, and is characterized by including a housing that is connected to a part of the shield unit to cover the upper part of the transfer unit and has an internal cooling space that is open in the front and rear, a refrigerant circulation unit that is arranged to have a length in the cooling space and has a flow path formed along the inside so that refrigerant circulates, and a cooling unit that is connected at both sides in the longitudinal direction of the refrigerant circulation unit and circulates the refrigerant along the flow path while cooling it to a set temperature.

[0009] In addition, the refrigerant circulation section may be folded into multiple pieces to have a larger area in the vertical and left-right directions than in the front-back direction, and may be arranged in multiple pieces spaced apart along the front-back direction of the transport section.

[0010] In addition, it may include an attachment removal unit that can rotate around a horizontal rotation center that follows the left-right direction of the cooling space and whose radial direction contacts the front or rear of the refrigerant circulation unit, and a rotation driving unit that transmits rotational force to one axial side of the attachment removal unit.

[0011] In addition, the above-mentioned rotation shaft may be arranged in a multiple spaced apart state along the vertical direction, and may further include a power transmission member that mechanically connects one axial side of the above-mentioned rotation shaft so as to be interlocked.

[0012] In addition, the cooling unit may further include a control unit that controls the operation of the cooling unit, and a temperature detection unit that detects the external temperature of the housing and transmits a temperature detection signal to the control unit, and the control unit may drive the cooling unit when a reference temperature is preset and the temperature transmitted from the temperature detection unit is lower than or equal to the reference temperature.

[0013] The present invention has the effect of maintaining the dust collector's function to operate normally even in winter when the temperature is low, as condensation does not occur when coal dust is sucked in, foreign substances do not stick to the inside of the suction path, and the diameter of the suction path does not decrease or become clogged.

[0014] Figure 1 is a side view showing a coal moisture and dust removal device according to the present invention.

[0015] Figure 2 is a side cross-sectional view showing a coal moisture and dust removal device according to the present invention.

[0016] Figure 3 is a cross-sectional view showing a coal moisture and dust removal device according to the present invention.

[0017] Figure 4 is a perspective view showing a refrigerant circulation unit and an attachment removal unit of a coal moisture and dust removal device according to the present invention.

[0018] Figure 5 is a cross-sectional view showing a state in which an elevating member, an elevating motor, and a connecting member are applied to a coal moisture and dust removal device according to the present invention.

[0019] Figure 6 is a side view showing a state in which an elevating member, an elevating motor, and a connecting member are applied to a coal moisture and dust removal device according to the present invention.

[0020] Figure 7 is a perspective view showing an elevating member, an elevating motor, and a connecting member applied to a coal moisture and dust removal device according to the present invention.

[0021] Figure 8 is a side cross-sectional view showing a state in which an air injection unit is applied to a coal moisture and dust removal device according to the present invention.

[0022] Figure 9 is a cross-sectional view showing a state in which an air injection unit is applied to a coal moisture and dust removal device according to the present invention.

[0023] Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to the attached drawings.

[0024]

[0025] The advantages and features of the present invention and the method for achieving them will become clear with reference to the embodiments described in detail below together with the attached drawings.

[0026] However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and these embodiments are provided only to make the disclosure of the present invention complete and to fully inform a person having ordinary skill in the art to which the present invention pertains of the scope of the invention, and the present invention is defined only by the scope of the claims.

[0027] In addition, when describing the present invention, if it is determined that related known technologies, etc. may obscure the gist of the present invention, a detailed description thereof will be omitted.

[0028]

[0029] FIG. 1 is a side view showing a coal moisture and dust removal device according to the present invention, FIG. 2 is a side sectional view showing a coal moisture and dust removal device according to the present invention, FIG. 3 is a front sectional view showing a coal moisture and dust removal device according to the present invention, FIG. 4 is a perspective view showing a refrigerant circulation unit and an attachment removal unit of a coal moisture and dust removal device according to the present invention, FIG. 5 is a front sectional view showing a state in which an elevating member, an elevating motor, and a connecting member are applied to a coal moisture and dust removal device according to the present invention, and FIG. 6 is a side view showing a state in which an elevating member, an elevating motor, and a connecting member are applied to a coal moisture and dust removal device according to the present invention.

[0030] FIG. 7 is a perspective view showing an elevation member, an elevation motor, and a connecting member applied to a coal moisture and dust removal device according to the present invention, FIG. 8 is a side cross-sectional view showing a state in which an air injection unit is applied to a coal moisture and dust removal device according to the present invention, and FIG. 9 is a front cross-sectional view showing a state in which an air injection unit is applied to a coal moisture and dust removal device according to the present invention.

[0031]

[0032] Referring to FIGS. 1 to 9, a coal moisture and dust removal device according to the present invention includes a transfer unit (10) that transfers coal (A) settled on an upper surface forward, a shield unit (20) that covers the upper portion of the transfer unit (10) and has a length in the front and rear and an internal movement space that is open in the front and rear, and a dust suction unit (30) that sucks dust in the front of the transfer unit (10), and includes a housing (100), a refrigerant circulation unit (200), a cooling unit (300), an attachment removal unit (400), a rotation driving unit (500), and a control unit (600).

[0033] The conveying unit (10) may include a frame that is installed on an installation surface, a plurality of rollers (11) that are installed on the upper part of the frame and can rotate around a horizontal rotation center facing left and right, and are arranged in a state where a plurality of rollers are spaced apart along the front-back direction, a conveyor belt (12) that has a length in the front-back direction while wrapping around the radial direction of the rollers (11), and whose upper surface moves forward by the rotation of the rollers (11), and a conveying motor that is installed on the frame and has a drive shaft that is mechanically coupled to the axial direction of the rollers (11).

[0034] The conveyor belt (12) can have its upper surface move forward when the roller (11) rotates, and its lower surface can change direction and move backward, so that coal (A) can be settled from the rear of the conveyor belt (12) to its upper surface. In this process, the coal (A) settled on the upper surface of the conveyor belt (12) can be moved forward and then dropped to the input position.

[0035] The shield (20) is connected to the upper part of the frame and covers the upper part of the conveyor belt (12), and coal (A) can be moved along the internal movement space (21) that is open forward and backward, and coal (A) can be settled on the upper surface of the conveyor belt (12) through the rear of the shield (20).

[0036] A shielding member (20) like this prevents coal (A) being transported along the upper surface of the conveyor belt (12) from being separated or scattered to the outside, and protects the coal (A) from being wet by snow, rain, etc. during the transport process.

[0037] The dust suction unit (30) is configured to suck up dust (B) generated in the process of transporting coal (A). The dust suction unit (30) is placed on the upper portion of the conveyor belt (12) exposed in front of the shielding unit (20), and the suction pipe (31) of the dust suction unit (30) can suck up dust (B) in front of the shielding unit (20).

[0038] Here, the dust suction unit (30) may include a suction pipe (31) installed in front of the shielding unit (20) and having a lower suction port located above the conveyor belt (12), and a blower (not shown) that generates suction pressure at the upper portion of the suction pipe (31) to forcibly draw dust (B) into the suction port, and the dust (B) moved along the suction pipe (31) by the suction pressure of the blower may be moved to a separate collection space and processed.

[0039] The housing (100) is connected to a portion of the shielding section (20) to cover the upper portion of the transport section (10), and the cooling space (110) inside can be opened in the front-back direction and connected to the moving space (21), and a transparent display window (not shown) can be provided on the outer surface of the housing (100) so that the cooling space (110) can be checked from the outside.

[0040] In addition, the length of the front and rear sides of the housing (100) can be applied in various ways as needed, and an installation space can be formed on the upper part of the housing (100) so that a cooling unit (300) and a control unit (600) can be installed, and the installation space can be partitioned vertically from the cooling space (110) by a bulkhead.

[0041] The refrigerant circulation unit (200) is configured to cool the cooling space (110) to a set temperature, is arranged to have a length in the cooling space (110), and a flow path is formed along the inside so that the refrigerant (C) can circulate, and may be made of a metal material (brass, etc.) with good thermal conductivity.

[0042] Here, the refrigerant circulation section (200) is folded into multiple pieces to have a wider area in the vertical and left-right directions than in the front-back direction, and can be arranged in multiple pieces spaced apart along the front-back direction of the transport section (10), and the number of refrigerant circulation sections (200) can be applied in various ways as needed.

[0043] In addition, the refrigerant circulation unit (200) is connected to the cooling unit (300) to be described later on both sides in the longitudinal direction so that the cooled refrigerant can be circulated while being cooled to a set temperature, and the lower part of the refrigerant circulation unit (200) and the upper part of the conveyor belt (12) are spaced apart at a certain interval so that coal (A) can be moved.

[0044] Since the refrigerant circulation unit (200) has a certain width in the vertical and left-right directions of the cooling space (110), it can cool the air in the cooling space (110) and the air passing through the cooling space (110) to a set temperature.

[0045] That is, in the process of moving coal (A) forward while the conveyor belt (12) rotates, the coal (A) passes through the cooling space (A), and the dust (B) of the coal (A) passing through the cooling space (A) can be lowered to the same temperature as the outside air by the air cooled by the refrigerant circulation unit (200), and the dust moved while being cooled in the cooling space (A) can be sucked in through the suction pipe (31) of the dust suction unit (30).

[0046] The cooling unit (300) is configured to cool the refrigerant (C) moving along the flow path of the cooling circulation unit (200). Both sides of the longitudinal direction of the refrigerant circulation unit (200) are connected, and the refrigerant (C) is circulated along the flow path while being cooled to a set temperature. Here, the cooling unit (300) can be installed in the aforementioned installation space.

[0047] Here, the cooling unit (300) is placed in the installation space, and the process of sequentially compressing, condensing, and expanding the refrigerant (C) delivered from the longitudinal side outlet of the refrigerant circulation unit (200) and moving it to the inlet of the refrigerant circulation unit (200) can be repeated.

[0048] To explain in more detail, the cooling unit (300) may include a compressor (not shown) that compresses the gaseous refrigerant (C) delivered from the outlet of the refrigerant circulation unit (200) into a high-temperature, high-pressure gas, a condenser (not shown) that cools the high-temperature, high-pressure refrigerant delivered from the compressor and changes it into a liquid refrigerant (C), and an expansion valve (not shown) that changes the low-temperature, high-pressure refrigerant (C) delivered from the condenser into a low-temperature, low-pressure refrigerant (C) by passing it through a capillary tube and then delivers it to the inlet of the refrigerant circulation unit (200).

[0049] In this case, the refrigerant (C) delivered to the inlet of the refrigerant circulation section (200) absorbs external heat while evaporating into a gaseous state in the process of passing through the cooling section, and the gaseous refrigerant (C) that has passed through the cooling section can be moved to the compressor through the outlet of the refrigerant circulation section (200).

[0050] In addition, the compressor may be equipped with a compressor through which refrigerant (C) is delivered inside, and a motor for compressing the refrigerant (C) delivered inside the compressor, and the condenser may include a condenser tube for moving the refrigerant delivered from the compressor to an expansion valve, and a blower fan disposed on one side of the condenser tube and rotating a rotary blade to blow air to the outside of the condenser tube.

[0051] That is, the refrigerant (C) can be continuously compressed by driving a motor (not shown) by power transmitted from an external power supply (not shown), and the refrigerant (C) passing through the condenser can be continuously cooled by rotating the rotary blades of the blower fan (not shown) by power transmitted from the outside, and an exhaust port (not shown) can be formed in the housing (100) to discharge heat generated in the condenser to the outside.

[0052] The attachment removal unit (400) is rotatable based on a horizontal rotation center that follows the left-right direction of the cooling space (110), and the radial direction contacts the front or rear of the refrigerant circulation unit (200), and by rotation, drops attachments attached to the surface of the refrigerant circulation unit (200) to the upper part of the conveyor belt (12).

[0053] Here, the attachment removal unit (400) may include a plurality of rotation axes (410) that form a horizontal rotation center in the left-right direction of the cooling space (110) and are positioned at least at the front and rear of the refrigerant circulation unit (200), and brushes (420) that are coupled along the radial direction of the rotation axes (410) and come into contact with the front or rear of the refrigerant circulation unit (200).

[0054] The rotation shafts (410) can be arranged in a multiple spaced apart manner along the vertical direction, and both axial sides of the rotation shafts (410) can be rotatably coupled to the walls on both sides of the cooling space (110). Here, the number of rotation shafts (410) can be applied in various ways as needed.

[0055] The brush (420) can use an elastically deformable material, one longitudinal side of the brush (420) can be coupled to the radial direction of the rotation shaft (410), and the free end of the brush (420) opposite to the rotation shaft (410) can rotate to wipe the surface of the refrigerant circulation unit (200).

[0056] In addition, the brush (420) can remove attachments while simultaneously wiping the front and rear of the refrigerant circulation unit (200), and the surface of the refrigerant circulation unit (200) is maintained in a state where attachments are removed, so the cooling space (110) can be cooled to a uniform temperature.

[0057] The rotary drive unit (500) is configured to transmit rotary force to the rotary shaft (410), and can be coupled to the outer wall of the housing (100) or the inner wall of the cooling space (110), etc., and a driving shaft protruding to one side of the rotary drive unit (500) can be mechanically connected to one axial side of the rotary shaft (410) to transmit rotary force, and the driving unit (500) can be turned ON / OFF by the control unit (600).

[0058] For example, the driving unit (500) may be driven at each driving time preset in the control unit (600) to rotate the rotation shaft (410) for a set time, and the rotation shaft (410) may be rotated at a rotation speed input through the control unit (600). The control unit (600) may be electrically connected to an operating unit and a display unit for operating various functions or checking operating information. In addition, the operating cycle and operating time of the attachment removal unit (400) may be manually controlled using the control unit (600) described below.

[0059] In addition, when arranging a plurality of rotation shafts (410) in the vertical direction, a power transmission member (510) that connects one axial side of the rotation shafts (410) may be further included. The power shear member (510) transmits rotational force to the remaining rotation shafts (410) when one rotation shaft (410) is rotated by the driving force of the rotation drive unit (500), thereby causing them to rotate simultaneously.

[0060] Here, the power transmission member (510) may include a plurality of pulleys (511) that are coupled to one axial side of the rotation shaft (410) and form a radial circle, and a connecting belt (512) that is coupled while wrapping around the radial direction of the pulley (511), and when the connecting belt (512) rotates, the pulley (511) rotates together to rotate the rotation shaft (410).

[0061] In this case, when the rotation drive unit (500) is driven, a plurality of rotation shafts (410) arranged in the up-and-down direction can rotate simultaneously, and a plurality of brushes (420) can rotate simultaneously to wipe the surface of the refrigerant circulation unit (200) over a wide area, and the area over which attachments can be wiped can be controlled by adjusting the number of rotation shafts (410) arranged.

[0062] The control unit (600) is configured to control the operation of the cooling unit (300) and the rotation driving unit (500), and can be installed in the installation space. The driving time of the driving unit (500), etc. can be preset in the control unit (600), and an operation unit and a display unit for operating various functions or checking operation information can be electrically connected to the control unit (600).

[0063] In addition, it may further include one or more temperature sensing units (610) that are electrically connected to the control unit (600) and detect the external temperature of the housing (100). The temperature sensing unit (610) may use a temperature sensor and may be installed in a state coupled to the outside of the housing (100), but the installation location of the temperature sensing unit (610) is not limited.

[0064] In this case, a reference temperature can be preset in the control unit (600), and when the temperature transmitted from the temperature sensing unit (610) is lower than the reference temperature, the cooling unit (300) can be driven to cool the refrigerant to the same temperature as the outside air temperature. That is, since the control unit (600) is cooled to a temperature corresponding to the outside air temperature, the air in the cooling space (110) can be maintained at the same temperature as the outside air.

[0065] A coal moisture and dust removal device according to one embodiment of the present invention may further include a vibration generating unit (700) coupled to a cooling space (110) and turned on / off by a control unit (600), and generating vibration when driven to detach attachments attached to the refrigerant circulation unit (200) and the cooling space (110).

[0066] The vibration generating unit (700) is coupled to the cooling space (110) and may include one or more vibration motors (710) having a drive shaft protruding to one side, and a weight (720) coupled to the drive shaft of the vibration motor (710) to rotate eccentrically and generate vibration when rotated. The installation position of the vibration motor (710) can be applied in various ways.

[0067] In this case, the vibration motor (710) can be driven for each driving time preset in the control unit (600) to rotate the weight (720) for a set time, and the intensity of the vibration can be selected by rotating the drive shaft of the vibration motor (710) at a rotation speed input through the control unit (600).

[0068] Meanwhile, a coal moisture and dust removal device according to one embodiment of the present invention may further include a pair of lifting holes (120) that penetrate both sides of a housing (100) and penetrate both axial sides of a rotation shaft (410) as shown in FIGS. 5 to 7 and have a length in the vertical direction so that the rotation shaft (410) can be raised and lowered, a pair of lifting members (810) that are arranged to be raised and lowered on both sides of the housing (100) and are rotatably connected to both axial sides of the rotation shaft (410), a pair of lifting motors (820) that are respectively coupled to both sides of the housing (100) and positioned above the lifting members (810) and have a drive shaft protruding to one side, and a connecting member (830) that is coupled to the lifting member (810) at a lower end and wound around the drive shaft of the lifting motor (820) at an upper end.

[0069] A pair of elevator holes (120) are configured to elevate the rotation shaft (410), and can be arranged in a multiple number spaced apart along the front-rear direction of the conveyor belt (12) so that both axial sides of the rotation shaft (410) can be horizontally penetrated.

[0070] A pair of lifting members (810) can be vertically arranged on both sides of the housing (100), and one side facing each other can be in close contact with both sides of the housing (100), and the lifting hole (120) can be covered by the lifting members (810).

[0071] That is, the brush (420) can be raised and lowered by the lifting member (810) to sequentially clean the upper and lower sections of the refrigerant circulation section (200), and one brush (420) can clean a wide area of ​​the refrigerant circulation section (200).

[0072] Meanwhile, a coal moisture and dust removal device according to one embodiment of the present invention may include a plurality of air injection units (910) installed in a cooling space (110) as shown in FIGS. 8 and 9, having a length on both sides, air passages formed along the inside, and a nozzle (911) formed on one side in the width direction so as to be in communication with the air passages, and an air pressure supply unit (912) whose structuring is controlled by a control unit (600) and which supplies air at a set pressure to one side in the length direction of the air injection units (910).

[0073] The air injection unit (910) can be positioned at the bottom or top of each of the brushes (420), and the nozzles (911) can be arranged in a multiple spaced apart manner along the length direction of the air injection unit (910), and the nozzles (911) can be directed in the radial direction of the rotation axis (410).

[0074] Additionally, the air injection unit (910) can be horizontally placed below or above the brushes (420), and one longitudinal side of the air injection unit (910) can be connected to the discharge side of the air pressure supply unit (912).

[0075] The air supply unit (912) may have a structure such as a compressor to supply air in a compressed state, and may be installed outside the housing (100) or in the installation space.

[0076] For example, when the pneumatic supply unit (912) is driven, air at a set pressure is supplied along the air passage of the air injection unit (910), and the air moving along the air passage is injected through the nozzle (911). At this time, the air injected through the nozzle (911) collides with the radial direction of the brush (420), so any attachments present on the brush (420) may be detached by the impact and fall to the upper portion of the conveyor belt (12).

[0077] That is, the attachment attached to the brush (420) can be detached by using the pressure of the air sprayed through the nozzle (911), so that the attachment removal performance of the brush (420) can be maintained at a constant level, and periodic cleaning of the brush (420) is possible without the access of a manager, so that maintenance is convenient.

[0078] As a result, the present invention does not cause condensation when sucking coal dust, does not cause foreign substances to stick to the inside of the suction path, and does not cause a reduction in the diameter or blockage of the suction path, so that the dust suction part can be maintained to operate normally even in winter when the temperature is low.

[0079] Although specific embodiments of the coal moisture and dust removal device according to the present invention have been described so far, it is obvious that various modifications are possible within the scope of the present invention.

[0080] Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the claims described below but also by equivalents of the claims.

[0081] That is, it should be understood that the above-described embodiments are exemplary in all respects and not restrictive, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

[0082] The mode for carrying out the invention has been described together with the best mode for carrying out the invention above.

[0083] The present invention has industrial applicability because it can minimize the occurrence of condensation when inhaling dust during coal transport.

Claims

1. A coal moisture and dust removal device comprising a transfer unit that transfers coal settled on the upper surface forward, a shield unit that covers the upper part of the transfer unit and has a length from front to back and an internal movement space that is open from front to back, and a dust suction unit that sucks dust from the front of the transfer unit. A housing that is connected to a part of the above shielding section and covers the upper part of the above transport section, and has an internal cooling space that is open front and rear; A refrigerant circulation unit arranged to have a length in the above cooling space and having a flow path formed along the inside to allow refrigerant to circulate; and A coal moisture and dust removal device characterized by including a cooling unit in which both longitudinal sides of the refrigerant circulation unit are connected and the refrigerant is circulated along the passage while cooling to a set temperature.

2. In paragraph 1, The above refrigerant circulation unit, A coal moisture and dust removal device characterized in that it is folded into multiple pieces and has a larger area in the vertical and left-right directions than in the front-back direction, and is arranged in a multiple spaced state along the front-back direction of the conveying section.

3. In paragraph 1, An attachment removal unit that can rotate based on a horizontal rotation center that follows the left-right direction of the cooling space and whose radial direction contacts the front or rear of the refrigerant circulation unit, and A coal moisture and dust removal device characterized by including a rotary drive unit that transmits rotary force to one axial side of the above attachment removal unit.

4. In paragraph 3, The above rotation axis is, They are arranged in a multiple spaced apart manner along the vertical direction, A coal moisture and dust removal device characterized in that it further includes a power transmission member that mechanically connects one axial side of the above-mentioned rotating shaft so as to be linked.

5. In paragraph 1, A control unit that controls the operation of the above cooling unit, and It further includes a temperature detection unit that detects the external temperature of the housing and transmits a temperature detection signal to the control unit, A coal moisture and dust removal device characterized in that the control unit operates the cooling unit when a reference temperature is preset and the temperature transmitted from the temperature sensing unit is lower than the reference temperature.

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