KR20090044392A - Dust collector and silo apparatus using the same - Google Patents

Abstract

The present invention relates to a dust collector capable of automatically dusting out a filter bag for filtering dust generated when storing a mixture of sand and cement in a sieve body, and a sieve apparatus using the same.

Description

DUST COLLECTOR AND SILO APPARATUS USING THE SAME}

The present invention relates to a dust collector capable of automatically dusting out a filter bag for filtering dust generated when storing a mixture of sand and cement in a sieve body, and a sieve apparatus using the same.

In general, the mixing cement supply sieve device is temporarily installed at a construction site, and temporarily receives mixed cement commercialized by mixing cement and sand in advance, and is used to supply a fixed quantity to the mixer side coupled to the outlet of the siro device. do.

It is proposed that this type of siro device is disclosed in the publication of Korean Patent No. 10-0668066 to which the applicant has been filed in advance.

1 and 2 are a front view and a side view of a conventional siro apparatus.

As shown in FIG. 1 and FIG. 2, the conventional siro apparatus includes a siro body 100, an adjusting unit 200, a storage transfer unit 300, a mixing unit 400, and a water supply unit 600. , Control unit (not shown).

As illustrated in FIGS. 1 and 2, the sieve body 100 is a storage chamber for accommodating mixed cement (sand and cement), and a dust collector 140 is installed at an upper portion thereof, and has a funnel shape at a lower portion thereof.

The inlet pipe 110 for introducing the mixed cement is installed on the upper side of the sieve body 100, and the outlet 120 for discharging the mixed cement is formed at the lower side.

The dust collector 140 is a device for collecting and treating dust generated from the mixed cement introduced through the inlet pipe 110.

The dust collector 140 is largely comprised of the dust collecting unit 140A and the manual dust extraction unit 140B.

The dust collecting unit 140A includes a cylindrical filter bag, a tube casing and an upper bracket for supporting the upper and lower ends of the filter bag, and a body casing installed on the upper surface of the sieve body 100 while supporting the tube sheet and the upper bracket.

The dust collecting unit 140A passes through the inside of the filter bag through the tube sheet, and dust is collected and the remaining air is discharged to the outside through the filter bag.

However, when a large amount of dust is attached to the inner circumferential surface of the filter bag, excessive pressure is applied and the filter bag expands and bursts, or in severe cases, the fuselage 100 expands.

Manual elimination unit 140B is installed to solve this problem.

The manual exhaust unit 140B includes a lever 141B, a wire 143B connected to one end of the lever 141B, a connecting table 145B connecting the other end and the upper bracket of the lever 141B, and one end of the lever 141B. It consists of the turning support 147B provided between the other ends.

By the configuration of the manual exhaust unit 140B, when the operator grasps and pulls the wire 143B, the other end of the lever 141B is pulled up. The connecting rod 145B is then shaken by pulling the upper bracket slightly upward, for example, a dull tick sound.

Therefore, the worker is uncomfortable to pull the wire 143B intermittently or continuously, so there is a great risk of not properly exhausting.

In addition, even when the dust removal operation is performed, the upper bracket is fixed to the body casing and the vibration width is very fine, so the dust removal efficiency is very low, and thus, the operator does not think about pulling the wire 143B further.

As a result, the replacement cycle of the filter bag is faster, which significantly reduces the economics and productivity, such as an increase in the cost of replacing parts and stopping work during the replacement.

In particular, if the replacement cycle is missed, a serious situation may occur in which the moving body expands, causing an abnormality in the entire equipment.

The present invention has been made to solve the above-mentioned problems, take the structure to increase the efficiency of dust removal, as well as the automatic dust removal method to escape the dust-dependent method depending on the operator to increase the replacement cycle of the filter bag as much as possible to significantly improve the economics and productivity It is an object of the present invention to provide a dust collector that can be made and the apparatus through the same.

In order to achieve the above object, the dust collector according to claim 1 of the present invention,

In the dust collector installed on the upper part of the body between the inlet and the outlet formed, the dust collecting unit for collecting dust generated from the mixed cement introduced from the inlet, and the automatic dust extraction unit for automatically dedusting the dust collected in the dust collection unit It is characterized by.

According to this configuration, since the dust is periodically discharged automatically by the automatic dust removal unit, it is possible to solve the problem of the dust removal method depending on the operator.

The dust collector of Claim 2,

The automatic dust extraction unit is characterized in that it comprises a vibration unit and a drive control unit for driving control of the vibration unit.

The dust collector of Claim 3,

The dust collecting unit is a casing; A tube sheet installed below the casing and having a through hole; Upper bracket; A filter bag installed between the tube sheet and the upper bracket,

The vibration unit is installed on the upper bracket and the vibrator connected to the drive control unit; An upper plate placed on an upper side of the casing; It is characterized by consisting of a spring installed between the upper plate and the upper bracket.

According to this structure, the structure of the vibrator is small and simple, and it is excellent in handling and efficiency.

The siro apparatus according to claim 4,

A sieve body formed with an inlet and an outlet through which the mixed cement is introduced; A storage transfer unit storing and conveying the mixed cement discharged through the discharge port; A mixing unit configured to mix the mixed cement transferred from the storage transfer unit with water and discharge the mixed cement to the outside; Including a dust collector installed on the upper of the passage body,

The dust collector is characterized in that it is composed of a dust collecting unit for collecting dust generated from the mixed cement introduced from the inlet, and an automatic dust extraction unit for automatically dedusting the dust collected in the dust collecting unit.

The siro apparatus according to claim 5,

The automatic dust extraction unit comprises a vibration unit and a drive control unit for driving control of the vibration unit, wherein the dust collecting unit comprises a casing; A tube sheet installed below the casing and having a through hole; Upper bracket; It consists of a filter bag installed between the tube sheet and the upper bracket, the vibration unit is a vibrator installed on the upper bracket; An upper plate placed on an upper side of the casing; It is composed of a spring installed between the upper plate and the upper bracket, characterized in that the drive control unit is a timer for periodically operating the vibrator.

According to the dust collector according to the present invention, since dust is dedusted by the automatic dust extraction method, the dust removal efficiency can be stably performed by escaping from the method depending on the operator.

In addition, since it automatically vibrates in a vibrating manner, it is sufficient to install a small machine such as a vibrator, which occupies little occupied space.

In addition, since the upper bracket is freely supported by a spring, the vertical vibration width of the upper bracket is large, so that the dust removal efficiency can be significantly improved.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention, the same reference numerals are attached to the same as the conventional one and a detailed description thereof will be omitted.

Figure 3 is a side view of the siro apparatus according to an embodiment of the present invention, Figure 4 is an enlarged view of the main part of Figure 3, Figure 5 is a front view of Figure 3, Figure 6 is an enlarged view of the main part of Figure 5 7 is a front view illustrating a dust collector according to an embodiment of the present invention, FIG. 8 is a view of a housing of an adjustment unit according to an embodiment of the present invention, and FIG. 9 is a plan view of a blade of the adjustment unit according to an embodiment of the present invention. 10 is a plan view of an opening and closing plate according to an embodiment of the present invention, FIG. 11 is a plan view of a storage transfer part and a mixing part according to an embodiment of the present invention, and FIG. 12 is a view of a vent part according to an embodiment of the present invention. to be.

As shown in Figure 3 to 6, the siro apparatus of the present invention, the sieve body 100, the adjusting unit 200, the storage transfer unit 300, the mixing unit 400, the water supply unit ( 600), and a control unit (not shown).

As shown in FIGS. 3 and 5, the sieve body 100 has a cylindrical shape for storing mixed cement, a dust collector 1400 is installed at an upper portion thereof, and a hopper shape at a lower portion thereof.

An inlet for connecting the inlet pipe 110 for introducing the mixed cement is formed in the upper side of the sieve body 100, and an outlet 120 for discharging the mixed cement is formed in the lower side.

As illustrated in FIG. 7, the dust collector 1400 includes a dust collecting unit 1400A and an automatic dust collecting unit 1400B.

The dust collecting unit 1400A is installed between the casing 1410A, the tube sheet 1420A and the upper bracket 1430A installed on the lower side and the upper side of the casing 1410A, and between the tube sheet 1420A and the upper bracket 1430A. Consisting of a filter bag 1440A.

Types of filter bags include cylindrical, pocket, and cartridge types. The types of filter bags include nonwoven fabric, spun-bonded, and sintered. The filter bag 1440A of this embodiment has a structure in which the nonwoven fabric is rolled into a cylindrical shape and fixed to the tube sheet 1420A and the upper bracket 1430A with a clip or the like.

A through hole 1421A is formed in the seat tube 1420A to communicate with the interior of the interbody 110. In this embodiment, as shown in Fig. 14, four through holes 1421A are configured in total of eight arranged in two rows.

A chimney-shaped pipe 1423A protrudes from the upper surface of the through hole 1421A. After inserting the lower inner peripheral surface of the filter bag 1440A to the outer peripheral surface of this pipe 1423A, the outer peripheral surface of the filter bag 1440A is fixed with a strip | belt-shaped clip.

Similarly to the tube sheet 1420A, the upper bracket 1430A inserts the upper inner circumferential surface of the filter bag 1440A into the outer circumferential surface of the tube 1433A protruding from the lower surface, and then fixes the outer circumferential surface of the filter bag 1440A with a strip-shaped clip. do. However, the pipe 1433A of the upper bracket 1430A is configured without a through hole.

On the other hand, the side of the tube sheet 1420A is provided with a fastening piece 1425A that is fastened to the upper surface of the interbody 110. In addition, the tube sheet 1420A may be fixed to another base, and a fastening piece 1425A may be provided on this base.

Therefore, when the tube sheet 1420A is inserted into the through hole 111 of the sieve body 110, the fastening piece 1425A is inserted until it is caught around the through hole 111, and then is fastened and fixed.

The casing 1410A preferably has a hollow outer wall structure that projects upward from the edge of the tube sheet 1420A.

On the other hand, the automatic dust removal unit 1400B is preferably composed of a vibration unit 1410B and a drive control unit (not shown) for driving control of the vibration unit 1410B.

The vibration unit 1410B is a vibrator 1411B installed on the upper bracket 1430A, an upper plate 1413B placed on an upper side of the casing 1410A, a spring installed between the upper plate 1413B and the upper bracket 1430A. 1415B.

In addition, a cap 1450 is covered over the casing 1410A. This cap 1450 is used as a weather cover in which rain or snow does not enter the casing 1410A.

In addition, the cap 1450 may have a gap with the uppermost end of the casing 1410A, so that the filtered air smoothly escapes to the outside.

That is, the bracket 1451 which holds the upper end of the spring 1415B is fixed to the lower surface of the upper plate 1413B placed on the uppermost end of the casing 1410A, and the projection 1453 is placed on the upper surface of the upper plate 1413B to provide a cap. When the 1450 is placed on the protrusion 1453, a gap G is formed. Of course, it is preferable that the gap g is formed also in the side surface.

The driving control unit (not shown) is preferably an operation mode in which the vibrator 1411B is operated intermittently or periodically. In this embodiment, a timer (not shown) may be adopted and used as an example.

When the time is set by the timer, for example, when the operation time of 10 seconds and 5 seconds is set, the operator presses the timer operation button 1490 when injecting the mixed cement into the body 110 through the vibrator according to the above time. 1411B) can automatically operate periodically.

Therefore, when the vibrator 1411B operates periodically, the dust attached to the inner surface of the filter bag 1440B falls off, so the dust removal efficiency is very excellent, and the replacement cycle of the filter bag 1440B can be extended.

The manhole 1470 is provided in the casing 1410A.

Manhole 1470 is a passage for replacement of filter bag 1440B or for repair or inspection of other components.

The vibrating part 130 is mounted inside the lower side of the sieve body 100, which means that the mixed cement accommodated in the sith body 100 does not form a bridge, that is, does not agglomerate to the outlet 120. As a device for easy discharge, it is similar to the crosslinking prevention device described in JP 1998-010653 A, the detailed description thereof will be omitted.

The control unit 200 is mounted to communicate with the outlet 120 in the lower portion of the sieve body 100 to control the discharge of the mixed cement.

The control unit 200, as shown in Figures 4 and 8, the upper and lower housing 210, a plurality of blades rotatably mounted in the interior of the housing 210 and The first motor 240 rotates the blade 220 by the controller.

In FIG. 8, (a) is a plan view of a housing upper plate 211 mounted on an upper portion of the housing 210, and (b) is a front view showing a state in which the housing 210 and the first motor 240 are mounted. , (c) is a housing lower plate 212 mounted to the lower portion of the housing 210, (d) is a side view of (b) viewed from the side.

Holes are formed in the housing upper plate 211 and the housing lower plate 212, respectively, so that the upper and lower portions of the housing 210 communicate with each other to open.

Therefore, the housing upper plate 211 is in communication with the outlet 120 of the sieve body 100, the housing lower plate 212 is in communication with the upper portion of the storage transfer unit 300.

In addition, a cylindrical space is formed inside the housing 210, and the blade 220 is disposed therein.

The blade 220 is radially mounted about the central axis 230 to rotate in a cylindrical shape, the central axis 230 is connected to the first motor 240 that can rotate in a forward or reverse direction have.

Therefore, the mixed cement flowing through the upper portion of the housing 210 is discharged through the lower portion of the housing 210 by the rotation of the blade 220.

The blade 220 has a rectangular flat plate shape as shown in FIG. 9, and replaceable wear pieces 225 are mounted at both ends of the blade 220. When worn while contacting the inside of the housing 210, it is to replace only the wear piece 225 without replacing the entire blade (220).

By the control unit 200 as described above, the mixed cement contained in the sieve body 100 can be prevented from being randomly discharged to the storage transfer unit 300, which is accommodated in the sieve body 100 Regardless of whether the amount of the mixed cement is small or large, that is, the weight is light or heavy, the blade 220 may be rotated to supply the mixed cement to the storage transfer part 300, thereby supplying a predetermined amount of the mixed cement.

At this time, as shown in Figure 4, between the outlet 120 of the sieve body 100 and the upper portion of the control unit 200 is equipped with a sliding opening and closing plate 150, which does not use the siro apparatus If not or if you want to repair, etc. to close the outlet 120 of the fuselage 100, and to open when used.

10 shows the opening and closing plate 150, an opening 151 is formed at one side of the opening and closing plate, and slots 152 are formed long along the longitudinal direction at both sides.

That is, the opening 151 serves as a passage for introducing the mixed cement discharged through the outlet 120 into the housing 210 of the control unit.

Therefore, when opening the outlet 120 of the interbody 100, the opening and closing plate 150 so that the opening 151 communicates the hole formed in the outlet 120 and the housing upper plate 121. In order to move and to close the outlet 120 of the inter-body 100, the opening and closing plate so that the opening 151 does not communicate the hole formed in the outlet 120 and the housing upper plate 121. Move 150.

As shown in FIG. 4, the slot 152 is fastened together by the bolt 160 between the housing 210 of the control unit, in detail, between the housing upper plate 211 and the flange of the outlet 120.

Therefore, the opening and closing plate 150 is the slot 152 is guided by the bolt 160 to slide.

The storage transfer unit 300 is mounted on the lower portion of the control unit 200, and temporarily stores the mixed cement discharged through the control unit 200, and transfers it to the mixing unit 400. do.

4 and 11, the screw 320 is mounted in the storage transfer part 300, and the screw 320 is rotated by the second motor 330.

As shown in FIG. 11, pulleys 350 and 370 are mounted at ends of the second motor 330 and the screw 350, respectively, and the pulleys 350 and 370 are timing belts 360. The screw 350 is supported by a bearing 340.

The screw 320 is equipped with a plurality of flat bars 325, so that the mixed cement stored in the storage transfer unit 300 is quickly transferred.

In addition, the storage transfer unit 300 is equipped with a sensor 310, the sensor 310 serves to measure the accumulation amount of the mixed cement stored in the storage transfer unit 300.

In addition, the vent part 500 is mounted on the storage transfer part 300, and the vent part 500 filters dust generated in the storage transfer part 300.

The vent part 500 may include a case 510 having upper and lower openings as shown in FIGS. 4 and 12, and a cover 530 that is detachably mounted to cover an upper portion of the case 510. And, the discharge protrusion 540 formed to protrude upwardly formed in the cover portion 530, and the cap portion 550 is spaced on the upper portion of the discharge protrusion 540 so that the discharge protrusion 540 communicates with the outside; It consists of a lattice-shaped protection net 520 mounted inside the case 510.

In Figure 12 (a) is a plan view of the case 510, (b) is a front view of the case 510, (c) is a side view of the case 510, (d) is the case 510 ) Is the bottom view.

As above, the case 510 is open at the top and bottom.

In Figure 12 (e) is a side view of the cover portion 530, the discharge protrusion 540 is formed, (f) is a plan view of the cover portion 530, (g) is a side view of the cap portion 550. , (h) is a plan view of the cap 550, (i) is a plan view of the protective net 520.

The side of the case 510 is formed in the fastening means 511 for coupling the cover portion 530. The fastening means 511 is preferably implemented by a hinge bolt.

The vent part 500 functions to buffer scattering dust generated when the mixed cement falls into the storage transfer part 300 through the control part 200, and is simultaneously stored through the control part 200. By discharging the air flowing into the transfer unit 300 to the outside, the pressure inside the storage transfer unit 300 is prevented from increasing.

Therefore, the dust and air generated in the storage transfer unit 300 rises up through the case 510 and the discharge protrusion 540, and the dust is caused by the cap part 550 covering the discharge protrusion 540. Falling back to the storage transfer unit 300, only air is discharged to the outside.

In addition, the cap part 550 may prevent foreign matters from entering the discharge protrusion 540.

The protection net 520 serves to prevent the user's hand or other objects from entering the storage transfer part 300 through the case 510 when the user opens the cover part 530.

The mixing unit 400 is formed to extend at one end of the storage transfer unit 300, the other end is open, the water supply port 410 for introducing the water introduced through the water supply unit 600 at the top Is formed.

The mixing protrusion 420 extended to the screw 320 is formed inside the mixing unit 400.

Therefore, the mixed cement introduced into the mixing unit 400 through the storage transfer unit 300 is mixed with water by the mixing protrusion 420 and discharged to the outside.

The water supply unit 600 is a device for supplying a predetermined amount of water to the mixing unit 400, as shown in Figures 5 and 6, the pump 610 and the water flowing from the pump 610 A flow meter 620 for maintaining a constant amount, an on / off valve 630 for opening and closing a flow path of water flowing from the pump 610, and mounted between the on / off valve 630 and the mixing unit 400. The solenoid valve 640 is automatically opened and closed by the control unit.

That is, the opening and closing valve 630 controls the opening and closing of the water by the user manually operating, the solenoid valve 640 is introduced into the mixing unit 400 by the controller when the opening and closing valve 630 is opened. Adjust the amount of water added.

The water supply unit 600 and the water supply port 410 of the mixing unit 400 are connected to each other using a hose 650 or the like.

In addition, the water supply unit 600 may be equipped with a separate bypass passage to clean the water by using the water discharged through the bypass passage after the completion of the work.

The control unit controls the discharge amount of the control unit 200 and the solenoid valve 640.

That is, when the amount of mixed cement accumulated in the storage transfer part 300 by the sensor 310 is equal to or less than a reference value, the blade 220 of the adjusting part 200 is rotated to allow the interior of the interbody 100. The mixed cement accommodated in the supply to the storage transfer unit 300 through the control unit 200, if the amount of the mixed cement accumulated in the storage transfer unit 300 is greater than or equal to the control unit 200 ) To stop the mixing cement contained in the interbody 100 from being supplied to the storage transfer part 300 through the adjusting part 200.

At this time, the rotation force of the first motor 240 is varied according to the measured value of the sensor 310 so that the mixed cement accumulates at a predetermined height in the storage transfer part 300.

As described above, when a predetermined amount of mixed cement is accumulated in the storage transfer part 300 by the sensor 310, the control part 200 is stopped, whereby the weight of the mixed cement contained in the interbody 100 is heavy. Even if it is blocked by the control unit 200 can be prevented from being discharged to the storage transfer part 300, the storage transfer part 300 can always be stored in a certain amount of the mixed cement.

In addition, by controlling the solenoid valve 640 so that the flow meter 620 has a constant value, it is possible to constantly adjust the amount of water flowing into the mixing unit 400.

As a result, the control unit may automatically maintain a constant ratio of the amount of mixed cement and the amount of water introduced into the mixing unit 400.

Operation method of the apparatus between the present invention made of the above configuration, as shown in Figure 13, measuring step (S100), discharge control step (S200), transfer step (S300), and mixing step (S400) Is done.

13 is a flow chart briefly showing a method of operating an intermittent device according to an embodiment of the present invention.

The measuring step (S100) is a step of measuring the amount of mixed cement discharged from the interbody 100 and accumulated in the storage transfer part 300 using the sensor 310.

The discharge control step (S200), if the measured amount of the mixed cement discharged from the interbody 100 and accumulated in the storage transfer unit 300 is less than the reference value until the reference value, the control by the control unit By controlling the unit 200 to discharge the mixed cement from the interbody 100, and if the reference value or more is the step of stopping the control unit 200.

The transfer step (S300) is a step of transferring the mixed cement discharged from the sieve body 100 and accumulated in the storage transfer unit 300 to the mixing unit 400 using the screw 320.

In the mixing step (S400), the mixed cement transferred from the storage transfer part 300 is mixed with water supplied from the water supply part 600 and discharged to the outside.

The measuring step (S100), the discharge control step (S200), the transfer step (S300) and the mixing step (S400) may be performed after the end of one step, but preferably several steps are made simultaneously in succession To lose.

By the above operating method, the mixed cement contained in the sieve body 100 is automatically accumulated in the storage transfer part 300 in a constant amount at all times, and the mixed cement and water in the mixing part 400 It can always be mixed at a constant rate to ensure uniform mortarization.

As described above, although described with reference to a preferred embodiment of the present invention, the present invention can be variously modified or modified without departing from the spirit and scope of the present invention described in the claims Those skilled in the art will appreciate.

The present invention can be applied to articles that collect and process dust caused by the inflow of grains in addition to the inflow of mixed cement.

1 and 2 are a side view and a front view of the inter-appropriate apparatus registered and registered by the present applicant,

3 is a side view of the siro apparatus according to the embodiment of the present invention;

4 is an enlarged view of a main part of FIG. 3;

5 is a front view of FIG. 3.

6 is an enlarged view of a main part of FIG. 5;

7 is a front view showing a dust collector according to an embodiment of the present invention.

8 is a view of a housing of the control unit according to an embodiment of the present invention,

9 is a plan view of a blade of the adjusting unit according to an embodiment of the present invention;

10 is a plan view of the opening and closing plate according to an embodiment of the present invention,

11 is a plan view of the storage transfer unit and the mixing unit according to an embodiment of the present invention,

12 is a view of a vent according to an embodiment of the present invention;

13 is a flow chart briefly showing a method of operating an intermittent device according to an embodiment of the present invention.

14 is a plan view and a side view of the tube sheet;

<Description of the symbols for the main parts of the drawings>

100: siro fuselage, 110: inlet pipe, 120: outlet

130: vibration unit, 140: dust collector, 150: opening and closing plate,

151: opening, 152: slot hole, 160: bolt,

200: control unit, 210: housing, 211: housing top plate,

212: housing lower plate, 220: blade, 225: wear piece,

230: central axis, 240: the first motor, 300: storage transfer unit,

310: sensor, 320: screw, 330: second motor,

340: bearing, 350, 370: pulley, 360: timing belt,

400: mixing part, 410: water inlet, 420: mixing protrusion,

500: vent part, 510: case, 520: protective net,

530: cover portion, 540: discharge protrusion, 550: cap portion,

600: water supply unit, 610: pump, 620: flow meter,

630: on-off valve, 640: solenoid valve, 650: hose,

1400: Dust Collector 1400A: Dust Collector 1400B: Automatic Dust Collector Unit

1410A: Casing 1420A: Tubesheet 1430A: Top Bracket

1440A: Filter bag 1425A: Fastener 1414B: Vibration unit

1411B: Vibrator 1413B: Top plate 1415B: Spring

1450 cap 1470 manhole

S100: measuring step, S200: discharge control step, S300: transfer step,

S400: Mixing step.

Claims (5)

In the dust collector installed in the upper part of the body between the inlet and outlet, A dust collecting unit for collecting dust generated from the mixed cement introduced from the inlet; Dust collector, characterized in that consisting of an automatic dust extraction unit for automatically dust-dusting the dust collected in the dust collection unit. The method of claim 1, The automatic dust extraction unit is a dust collector comprising a vibration control unit and a drive control unit for driving control of the vibration unit. The method of claim 2, The dust collecting unit is a casing; A tube sheet installed below the casing and having a through hole; Upper bracket; A filter bag installed between the tube sheet and the upper bracket, The vibration unit is installed on the upper bracket and the vibrator connected to the drive control unit; An upper plate placed on an upper side of the casing; Dust collector, characterized in that consisting of a spring installed between the top plate and the upper bracket. A sieve body formed with an inlet and an outlet through which the mixed cement is introduced; A storage transfer unit storing and conveying the mixed cement discharged through the discharge port; A mixing unit configured to mix the mixed cement transferred from the storage transfer unit with water and discharge the mixed cement to the outside; Including a dust collector installed on the upper of the passage body, The dust collector A dust collecting unit for collecting dust generated from the mixed cement introduced from the inlet; An apparatus according to claim 1, wherein the dust collecting unit comprises an automatic dust collecting unit for automatically dust collecting dust collected in the dust collecting unit. The method of claim 4, wherein The automatic dust extraction unit is composed of a vibration control unit and a drive control unit for driving control of the vibration unit, The dust collecting unit is a casing; A tube sheet installed below the casing and having a through hole; Upper bracket; A filter bag installed between the tube sheet and the upper bracket, The vibrating unit is a vibrator installed on the upper bracket; An upper plate placed on an upper side of the casing; Consists of a spring installed between the top plate and the upper bracket, And the drive control unit is a timer for periodically operating the vibrator.

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