Using method of mixed sand dust settling equipment

Abstract

The invention relates to the field of prefabricated assembly type building components, and discloses a using method of mixed sand dust falling equipment. The using method comprises the steps that 1, in an initial state, a dust exhaust fan sucks dust into an exhaust pipe, a water spraying unit sprays water to enable the dust and water mist to be combined and fall downwards, and the dust falls on an adsorption part; 2, when the weight of the adsorption part reaches a set value, the rotary driving part drives the adsorption part to rotate, and dust is thrown out in the friction process of the adsorption part and the friction unit; 3, the weight of the adsorption part is reduced, the sliding plate moves upwards, and the controller controls the rotation driving part to stop; residual dust on the surface of the adsorption part is blown out by positive pressure; and 5, the adsorption part returns to the position of the initial state, the dust falls onto the conveying belt in a centralized mode, and the conveying belt carries away the dust for centralized treatment. The dust removal efficiency in the mixed sand production process is improved.

Description

[0001] This application is a divisional application of application number 2023112786476, filed on September 28, 2023, and case name “Mixed sand dust reduction equipment”. Technical Field

[0002] The invention relates to the field of prefabricated assembled building components, and in particular to a method for using mixed sand dust reduction equipment. Background Art

[0003] With the standardization of construction, the application of prefabricated components is becoming more and more widespread. Compared with on-site concrete casting, prefabricated components are made and formed in the factory, with a better molding environment and more systematic and standardized processing equipment, so the quality of prefabricated components is better.

[0004] Among them, a large amount of dust will be generated during the production process of mixed sand, one of the raw materials of prefabricated components, which will harm the health of production workers. At the same time, the dust in the factory will not be automatically blown away by the wind, so dust removal in the mixed sand production process is very important.

[0005] In the prior art, exhaust equipment and dust removal bags are usually set at the exhaust position to collect dust. However, since dust is easily dispersed under the action of air flow, the greater the power of the exhaust equipment, the easier it is for the dust to disperse. This method is inefficient. At the same time, it is not possible to sprinkle water everywhere to reduce dust like a construction site, otherwise it will affect the humidity of the mixed sand, thereby reducing the quality of the mixed sand product. Summary of the invention

[0006] The present invention aims to provide a method for using a mixed sand dust reduction device to improve the dust removal efficiency in the mixed sand production process.

[0007] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a method for using a mixed sand dust reduction device, comprising an exhaust pipe, a dust exhaust fan is arranged at the end of the exhaust pipe, a dust reduction mechanism is arranged at the air inlet position of the dust exhaust fan, the dust reduction mechanism comprises a dust collector bag and a water sprinkling unit above the dust collector bag, a dust removal part is arranged below the dust reduction mechanism, a vertical channel is arranged in the dust removal part, the vertical channel is connected to the exhaust pipe, a dust removal mechanism is arranged in the vertical channel, the dust removal mechanism is arranged below the dust reduction mechanism, the dust removal mechanism comprises an adsorbent, a support plate, a gravity sensing unit and a friction unit, a rotating driving part is arranged on the side of the adsorbent, the adsorbent is arranged on the support plate, a gap is arranged on the support plate for liquid to flow through, when the gravity of the adsorbent increases after adsorbing dust, and the gravity sensing unit is triggered when the weight of the adsorbent reaches a set value, the gravity sensing unit transmits a signal to the friction unit, the friction unit approaches and contacts the adsorbent, the rotating driving part drives the adsorbent to rotate, and the dust is thrown out during the friction between the adsorbent and the friction unit.

[0008] The beneficial effects of this program are:

[0009] 1. The dust exhaust fan sucks the dust into the exhaust duct, and the dust bag is set at the air inlet of the dust exhaust fan to prevent the dust from being directly discharged through the fan and affecting the air quality outside; the sprinkler unit sprinkles water to make the dust and water mist fall downward, and the dust falls on the adsorbent. When the gravity of the adsorbent increases after adsorbing the dust, the gravity sensing unit is triggered when the weight of the adsorbent reaches the set value. The gravity sensing unit transmits the signal to the friction unit, and the friction unit approaches and contacts the adsorbent. The rotating drive drives the adsorbent to rotate, and the dust is thrown out during the friction between the adsorbent and the friction unit.

[0010] 2. Due to the obstruction of the adsorption device, the water mist in the vertical channel cannot be discharged immediately, and the concentration of water mist above the adsorption device increases, making it easier for dust to combine with water mist and fall downward, thereby improving the efficiency of dust reduction.

[0011] 3. During the rotation of the adsorbent, due to the high concentration of water mist above the adsorbent, the dust is not easily thrown out upwards. Relatively speaking, the dust is more easily thrown out downwards, thereby achieving the purpose of dust discharge.

[0012] 4. Compared with continuous dust removal, in this solution, the dust is first dropped on the adsorption part, and then the dust is removed intermittently, so that the discharged dust is more concentrated, easier to clean, and the cleaning efficiency is higher; at the same time, in the process of concentrating more dust together for treatment, it is less likely to generate dust, which is more environmentally friendly.

[0013] Furthermore, the dust reduction mechanism also includes a vertically arranged grille plate, which provides support for the dust bag in the air flow direction. In this arrangement, the dust bag is supported on the grille plate so that the dust bag forms a plane, and when the water mist combines with the dust on the dust bag, the dust falls down along the plane.

[0014] Furthermore, the adsorbent includes a sponge and an inner shell, wherein the inner shell is a rigid strip-shaped shell, and the sponge is wrapped outside the inner shell. With such a configuration, the sponge can better absorb dust, and the inner shell provides support for the sponge to facilitate rotation. Since the sponge is a flexible material, it can produce greater deformation during the rotation process, making it easier to throw out the dust.

[0015] Furthermore, the friction unit includes two friction components symmetrically arranged on both sides of the adsorbent, the friction components include a friction plate and a horizontal driving member, the horizontal driving member can drive the friction plate close to the adsorbent, and a plurality of protrusions are arranged on the friction plate. In this arrangement, the contact surface between the friction plate and the adsorbent is increased by the protrusions, thereby increasing the deformation of the adsorbent during rotation, thereby making it easier to throw out the dust, and through the gaps between the protrusions, it is easier for water mist and air to flow downward, so as to facilitate the dust to be thrown out downward.

[0016] Furthermore, a rectangular groove is vertically provided on the inner side of the side wall of the vertical channel, a rectangular slider is slidably connected in the rectangular groove, a rotary drive member is arranged in the rectangular slider, a horizontal rotating shaft is respectively provided at both ends of the adsorption member, the horizontal rotating shaft penetrates into the rectangular slider and is rotatably connected with the rectangular slider, and the end of the horizontal rotating shaft is key-connected with the output shaft of the rotary drive member;

[0017] The vertical channel has a rectangular cross-section, and vertical slide grooves are arranged in two opposite side walls of the vertical channel. The gravity sensing unit includes a controller and a slide plate. The slide plate is slidably connected in the slide groove, and the support plate passes through the side wall of the vertical channel and is connected to the slide plate. A lifting spring is vertically arranged between the lower end of the slide plate and the slide groove, and two mutually connected conductive spring plates on the plate are arranged on the side of the slide plate. Two conductive spring plates in the groove connected to the controller are arranged in the slide groove. After the slide plate descends, the conductive spring plates on the plate come into contact with the conductive spring plates in the groove, and the controller sends a signal to the horizontal driving member and the rotating driving member. The horizontal driving member drives the friction plate to approach and contact the adsorption member, and the rotating driving member drives the adsorption member to rotate.

[0018] This setting has the following effects:

[0019] 1. The adsorbent drives the slider to move up and down. When the adsorbent moves downward, the conductive spring on the plate contacts the conductive spring in the slot. The controller sends a signal to the horizontal drive and the rotary drive. The rotary drive drives the adsorbent to rotate, thereby throwing out the dust on the adsorbent.

[0020] 2. Since the rectangular groove and the rectangular slider are both rectangular, the rotating driving member can move up and down with the adsorption member without self-rotation.

[0021] 3. The circuit is connected and disconnected by the displacement of the slide, so that the controller sends a signal.

[0022] Furthermore, the inner shell of the adsorption component is cylindrical, and a plurality of air holes are provided on the ends and sides of the inner shell; a wind shield is vertically rotatably connected in the exhaust pipe, and the wind shield rotates horizontally when air flows; the upper end of the slide groove in one of the side walls of the vertical channel is connected to the air inlet of the dust exhaust fan, and a negative pressure hole connected to the vertical channel is provided on the side of the slide groove, and when the conductive elastic sheet on the plate contacts the conductive elastic sheet in the groove, the side slide groove, the negative pressure hole and the air hole are connected; another slide groove is arranged in the side wall away from the dust exhaust fan, and the other slide groove is connected to the side of the wind shield away from the dust exhaust fan, and a first positive pressure hole connected to the vertical channel is provided on the side of the slide groove, and the position of the first positive pressure hole is higher than the negative pressure hole, and a second positive pressure hole is provided on the slide plate, and the air hole, the first positive pressure hole, the second positive pressure hole and the side of the wind shield away from the dust exhaust fan can be connected at the same time;

[0023] A transmission mechanism is arranged in the side wall of the vertical channel, and the transmission mechanism includes a vertically arranged rack, a gear, a transmission shaft, a cam and a push rod. The rack is connected to a slide plate in a slide groove in the side wall away from the dust exhaust fan. The rack is meshed with the gear. A ratchet groove is arranged on the gear. A ratchet and a guide part are arranged in the ratchet groove. The ratchet and the gear are coaxial. The guide part is radially arranged between the ratchet and the side wall of the ratchet groove. A guide groove is arranged in the guide part. A guide strip is slidably arranged in the guide groove. The end of the guide strip close to the ratchet is wedge-shaped and can contact with the gear teeth of the ratchet. A return spring is provided between the other end of the guide bar and the guide part, the gear is rotatably connected to the transmission shaft, and the ratchet and cam are coaxially fixed on the rotating shaft; when the rack moves downward, the rack drives the gear to rotate, and the guide bar slides on the back of the ratchet teeth; when the rack moves upward, the rack drives the gear to rotate, and the guide bar is inserted into the tooth groove of the ratchet, driving the ratchet, the transmission shaft and the cam to rotate together, and the cam drives the push rod to move up first and then down, and the upper end of the push rod can enter the exhaust pipe and block the windshield from rotating. After the windshield stops rotating, the exhaust pipe is blocked. This arrangement has the following effects:

[0024] 1. When the weight of the adsorbent reaches the design value, the chute, the negative pressure hole and the air holes at the end of the inner shell are connected, and the dust exhaust fan is directly connected to the inside of the inner shell of the adsorbent. The sponge is adsorbed through the air holes on the side of the inner shell to make the sponge thinner and squeeze the dust out in the reverse direction, so that the dust is exposed on the surface of the sponge instead of hiding in the concave part of the sponge. Then the adsorbent is driven to rotate and the dust on the surface of the sponge falls off through friction with the friction plate.

[0025] 2. The dust on the surface of the sponge falls on one side, and the lifting spring pushes the slide plate upward. The slide plate on one side blocks the negative pressure hole, and the air hole on the side of the inner shell, the first positive pressure hole and the second positive pressure hole on the slide plate on the other side are connected. At the same time, the slide plate drives the rack to move upward, thereby driving the ratchet and the cam to rotate, and the cam drives the push rod to move upward, thereby blocking the wind shield from rotating. After the wind shield stops rotating, the exhaust pipe is blocked, and finally the gas in the exhaust pipe passes through the second positive pressure, the first positive pressure hole, the inner shell and the vertical channel in turn into the dust exhaust fan, blowing out the dust on the surface of the sponge. Then, the weight of the adsorbent continues to drop, the first positive pressure hole and the second positive pressure hole are no longer connected, the cam drives the push rod to move downward, and the gas stops flowing out of the inner shell.

[0026] Furthermore, a V-shaped conveyor belt is provided at the lower end of the vertical channel. In this way, the dust is horizontally displaced by the conveyor belt, and then the dust is sent to a place specially for dust treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an overall three-dimensional axonometric diagram of the embodiment;

[0028] Figure 2 It is a cross-sectional view of the dust removal mechanism of the embodiment in a natural state;

[0029] Figure 3 A cross-sectional view of the dust removal mechanism of the embodiment when the weight of the adsorbent reaches the design value;

[0030] Figure 4 A cross-sectional view of the dust removal mechanism of the embodiment when the first positive pressure hole and the second positive pressure hole are connected;

[0031] Figure 5 A three-dimensional axonometric view of the left side wall of the vertical channel of the embodiment;

[0032] Figure 6 It is a left side view of the adsorption member of the embodiment;

[0033] Figure 7 It is a front view of the inner shell of the adsorption component of the embodiment;

[0034] Figure 8 A three-dimensional axonometric diagram of the transmission mechanism of the embodiment;

[0035] Fig. 9 is an overall cross-sectional view of an embodiment;

[0036] Fig.10 is a schematic diagram of a transmission mechanism and a windshield of an embodiment;

[0037] Fig.11 Schematic diagram of the friction unit and the adsorption member of the embodiment. DETAILED DESCRIPTION

[0038] The following is further described in detail through specific implementation methods:

[0039] The reference numerals in the drawings of the specification include: exhaust pipe 1, dust exhaust fan 110, sprinkler head 120, dust bag 130, grille plate 140, wind shield plate 150, vertical shaft 151, dust exhaust part 2, vertical channel 210, left side wall 211, right side wall 212, front side wall 213, rear side wall 214, slide groove 221, slide hole 222, rectangular groove 231, rectangular slider 232, rotary drive member 233, negative pressure hole 241, first positive pressure hole 242, second positive pressure hole 243, connecting pipe 244, dust screen 245, friction Wiping plate 251, horizontal driving member 252, protrusion 253, slide plate 261, conductive spring piece 262 on the plate, conductive spring piece 263 in the groove, lifting spring 264, partition wall 3, conveyor belt 4, adsorption member 510, sponge 511, inner shell 512, square hole 513, round hole 514, horizontal rotating shaft 515, support plate 520, rack 610, gear 620, ratchet groove 621, ratchet 622, guide part 623, guide groove 624, guide bar 625, reset spring 626, cam 630, push rod 640, transmission shaft 650.

[0040] Example

[0041] The embodiment is basically as follows Figure 1-11 As shown: the mixed sand dust reduction equipment includes a dust exhaust part 2 and a horizontally arranged exhaust pipe 1, as shown in FIG. Figure 1 As shown, the exhaust duct 1 is a circular tube, the right end of the exhaust duct 1 is pre-buried in the partition wall 3 of the mixed sand production workshop, the left end of the exhaust duct 1 is bolted to the dust exhaust fan 110, and the left end of the exhaust duct 1 is the air inlet position of the dust exhaust fan 110; the dust exhaust part 2 is a rectangular tube, and a rectangular vertical channel 210 is arranged in the dust exhaust part 2, the lower side of the left end of the exhaust duct 1 is connected with the upper end of the vertical channel 210, and the lower end of the vertical channel 210 is provided with a V-shaped conveyor belt 4, and the conveyor belt 4 in the figure is only illustrated by the V-shaped cross-section of the conveyor belt 4.

[0042] like Fig. 9 As shown, the figure mainly shows the internal structure of the exhaust duct 1, and the specific structure of the dust exhaust part 2 is not shown. A dust reduction mechanism is provided at the air inlet position of the dust exhaust fan 110, and the dust reduction mechanism includes a watering unit and a dust prevention unit. The watering unit includes a plurality of watering nozzles 120, and the watering nozzles 120 are welded to the upper surface of the inner wall of the exhaust duct 1. The dust prevention unit includes a dust bag 130 and a vertically arranged grille plate 140. The grille plate 140 is bolted to the air inlet of the dust exhaust fan 110, and the dust bag 130 is hung on the right side of the grille plate 140. The flow direction of air and dust in the exhaust duct 1 is from right to left. Therefore, the grille plate 140 provides support for the dust bag 130 in the air flow direction. A wind shield 150 is vertically provided on the right side of the dust suppression mechanism. The wind shield 150 is a circular disk that fits the gap in the inner section of the exhaust duct 1. A vertical rotating shaft 151 is welded to the upper and lower ends of the wind shield 150 respectively. The vertical rotating shafts 151 are inserted into the inner wall of the exhaust duct 1 and are rotatably connected to the inner wall of the exhaust duct 1. The wind shield 150 rotates horizontally around the vertical rotating shaft 151 when the air flows.

[0043] The vertical channel 210 has a rectangular cross section. Figure 2 As shown, the side wall on the left side of the vertical channel 210 is the left side wall 211, and the side wall on the right side is the right side wall 212. Similarly, the side walls on the front and rear sides are the front side wall 213 and the rear side wall 214 ( Figure 2 The left side wall 211 and the right side wall 212 are provided with wall groove units, such as Figure 5 As shown, the wall groove unit includes a slide groove 221, a slide hole 222 and a rectangular groove 231. The slide groove 221 is vertically arranged in the side wall. The slide groove 221 and the vertical channel 210 are connected through the horizontally arranged rectangular slide hole 222. Figure 2-4 As shown, a rectangular slider 232 is slidably disposed in the rectangular groove 231 , and the rectangular groove 231 can limit the rotation of the rectangular slider 232 . A rotation driving member 233 is disposed in the rectangular slider 232 , and the rotation driving member 233 is a servo motor.

[0044] A dust removal mechanism is provided in the vertical channel 210, and the dust removal mechanism is arranged below the dust reduction mechanism. The dust removal mechanism includes an adsorbent 510, a support plate 520, a gravity sensing unit and a friction unit. The adsorbent 510 is arranged on the support plate 520, and the support plate 520 is a grid structure, such as Figure 7 As shown, the adsorbent 510 includes a sponge 511 and an inner shell 512. The inner shell 512 is a rigid rectangular shell. A plurality of air holes are opened on the inner shell 512. The air holes include square holes 513 and round holes 514. The square holes 513 are arranged at the end of the inner shell 512. Figure 6 As shown, the circular hole 514 is arranged on the side of the inner shell 512, the sponge 511 is wrapped around the outside of the side of the inner shell 512, and a horizontal rotating shaft 515 is welded on the left and right ends of the inner shell 512 respectively. The horizontal rotating shaft 515 passes through the rectangular slider 232 and is keyed to the output shaft of the rotating driving member 233.

[0045] The gravity sensing unit includes a controller and a slide plate 261. The controller is arranged in the side wall of the vertical channel 210. Figure 2 As shown, the slide plate 261 is vertically slidably connected in the slide groove 221, and the left and right ends of the support plate 520 are respectively connected to the slide plate 261 through the slide hole 222; a plurality of lifting springs 264 are vertically provided between the lower end of the slide plate 261 and the slide groove 221, and two conductive spring pieces 262 on the plate that are electrically connected to each other are respectively adhered to the left and right sides of the slide plate 261, and two conductive spring pieces 263 in the groove that are connected to the controller are respectively adhered to the left and right sides of the slide groove 221.

[0046] like Fig.11 As shown, the friction unit includes two friction components symmetrically arranged on the upper and lower sides of the adsorption member 510, and the two friction components are respectively arranged on the front side wall 213 and the rear side wall 214 of the vertical channel 210. The friction components include a friction plate 251 and a horizontal driving member 252. The horizontal driving member 252 is a cylinder. The output shaft of the horizontal driving member 252 and the friction plate 251 are vertically welded. The horizontal driving member 252 can drive the friction plate 251 to approach the adsorption member 510. The friction plate 251 is integrally formed with a number of hemispherical protrusions 253.

[0047] As the dust on the adsorption member 510 increases, the weight on the adsorption member 510 increases, driving the slide plate 261 to descend. When the weight on the support plate 520 reaches the design value, the conductive spring piece 262 on the plate contacts the conductive spring piece 263 in the groove. The controller sends a signal to the horizontal drive member 252 and the rotary drive member 233. The horizontal drive member 252 drives the friction plate 251 to approach and contact the adsorption member 510. The rotary drive member 233 drives the adsorption member 510 to rotate. The dust is thrown out during the friction between the adsorption member 510 and the friction unit.

[0048] like Figure 2 and Figure 5As shown, the wall groove unit of the left side wall 211 also includes a negative pressure hole 241, which is arranged on the right side of the side slide groove 221 and connected to the vertical channel 210. The upper end of the slide groove 221 of the left side wall 211 is connected to the air inlet of the dust exhaust fan 110 (not shown in the figure). Figure 3 As shown, when the weight on the adsorption member 510 reaches the design value, the chute 221, the negative pressure hole 241, the inner shell 512 of the adsorption member 510 on this side are connected to the vertical channel 210; the wall groove unit of the right side wall 212 also includes a connecting pipe 244, a first positive pressure hole 242 and a second positive pressure hole 243, the first positive pressure hole 242 is arranged on the left side wall of the chute 221, and is connected to the vertical channel 210, the second positive pressure hole 243 is a horizontal through hole arranged on the side slide 261, and the cross-sectional area of ​​the second positive pressure hole 243 is larger than the first positive pressure hole 242, and the chute 221 on this side is connected to the part on the right side of the wind shield 150 in the dust collection pipe through the connecting pipe 244, as shown Fig. 9 As shown, a dustproof net 245 is provided at the upper end of the connecting pipe 244 to prevent dust from entering the connecting pipe 244. Figure 4 As shown, the right side of the windshield 150, the connecting pipe 244, the second positive pressure hole 243, the first positive pressure hole 242 and the inner shell 512 of the adsorbent 510 can be connected at the same time. The first positive pressure hole 242 is located higher than the negative pressure hole 241. Near the positions of the negative pressure hole 241 and the first positive pressure hole 242, rubber strips are provided between the adsorbent 510 and the side wall of the vertical channel 210 to seal the gas (not shown in the figure).

[0049] Two transmission mechanisms are arranged in the side wall of the vertical channel 210, such as Figure 8 and Fig.10As shown, the two transmission mechanisms include a vertically arranged rack 610, a gear 620, a transmission shaft 650, a cam 630 and a push rod 640. The rack 610 and the upper end of the slide plate 261 of the slide groove 221 in the right side wall 212 are welded. The rack 610 and the push rod 640 are both vertically slidably arranged in the right side wall 212. The transmission shaft 650 is rotatably arranged in the right side wall 212. The right side wall 212 is grooved at the corresponding position of the upper transmission mechanism. The grooved method is conventional means and will not be repeated. The rack 610 is meshed with the gear 620. A ratchet groove 621 is provided on the gear 620. A ratchet 622 and a guide portion 623 are provided in the ratchet groove 621. The ratchet 622 and the gear 620 are coaxial. The guide portion 623 and the gear 620 are integrally formed. The guide portion 623 is radially arranged between the ratchet 622 and the circumferential side wall of the ratchet groove 621. A guide groove 624 is provided in the guide portion 623. A guide bar 625 is slidably connected in the guide groove 624. The end of the guide bar 625 close to the ratchet 622 is wedge-shaped and can contact the teeth of the ratchet 622. A return spring 626 is provided between the other end of the guide bar 625 and the guide portion 623. When the gear 620 rotates Connected to the transmission shaft 650, the ratchet 622 and the cam 630 are coaxially welded on the rotating shaft; when the rack 610 moves downward, the rack 610 drives the gear 620 to rotate, and the guide bar 625 slides on the tooth back of the ratchet 622; when the rack 610 moves upward, the rack 610 drives the gear 620 to rotate, and the guide bar 625 is inserted into the tooth groove of the ratchet 622, driving the ratchet 622, the transmission shaft 650 and the cam 630 to rotate together, and the cam 630 drives the push rod 640 to move up first and then down, and the upper end of the push rod 640 can enter the exhaust pipe 1 and block the wind shield 150 from rotating. After the wind shield 150 stops rotating, the exhaust pipe 1 is blocked. Specifically, Fig.10 As shown, the top rods 640 of the two transmission mechanisms are respectively blocked on both sides of the wind shield 150.

[0050] The transmission mechanism has many parts and requires a certain amount of power when it is running. Therefore, when the weight of the adsorbent 510 is reduced to a certain extent, the elastic force of the spring is sufficient to provide sufficient power for the transmission mechanism; otherwise, the transmission mechanism cannot operate. Then, as new dust falls on the adsorbent 510, the adsorbent 510 and the slide plate 261 fall again, triggering the horizontal drive member 252 and the rotary drive member 233 to throw out the stubborn dust remaining on the adsorbent 510, and the slide plate 261 rises again, thereby driving the transmission mechanism to operate; the adsorbent 510 It is just an accident that the stubborn dust on the adsorbent 510 cannot be shaken off. The reason is that the particles in the dust are trapped on the surface of the adsorbent 510 and are difficult to be shaken off. Therefore, the problem of the stubborn dust not being able to be shaken off can be solved by simply increasing the number of rotations; to avoid the stubborn dust remaining on the adsorbent 510 for a long time, new dust covers the stubborn dust, and the stubborn dust is more difficult to be shaken off. In this solution, when there is stubborn dust on the adsorbent 510, the adsorbent 510 stops rising in time, and less new dust accumulates on the stubborn dust, making it easier to shake out the stubborn dust.

[0051] The use of mixed sand dust reduction equipment is as follows:

[0052] 1. The initial state is as follows Figure 2 As shown, the dust exhaust fan 110 sucks the dust into the exhaust pipe 1, and the watering unit makes the dust and the water mist fall downward by watering, and the dust falls on the adsorbent 510, and the gravity of the adsorbent 510 after adsorbing the dust increases;

[0053] 2. If Figure 3 As shown, when the weight of the adsorbent 510 reaches the set value, the conductive spring sheet 262 on the plate contacts the conductive spring sheet 263 in the groove, and the controller sends a signal to the horizontal driving member 252 and the rotating driving member 233. The horizontal driving member 252 drives the friction plate 251 to approach and contact the adsorbent 510, and the rotating driving member 233 drives the adsorbent 510 to rotate. The dust is thrown out during the friction between the adsorbent 510 and the friction unit; at the same time, the air inlet of the dust removal fan, the slide groove 221 of the left side wall 211, the negative pressure hole 241 and the inner shell 512 of the adsorbent 510 are connected, and negative pressure is generated in the adsorbent 510, which produces an adsorption effect on the sponge 511 on the surface of the adsorbent 510;

[0054] 3. As the dust is thrown out, the weight of the adsorption member 510 is reduced, and the slide plate 261 moves upward. However, since the slide plate 261 needs to drive the transmission mechanism to operate during the upward movement, the speed of the slide plate 261 slows down during the upward movement. The slide plate 261 blocks the negative pressure hole 241, and the negative pressure in the adsorption member 510 disappears. The adsorption member 510 continues to rotate. After 10 seconds, the controller controls the horizontal driving member 252 to drive the friction plate 251 away from the adsorption member 510, and the controller controls the rotation driving member 233 to stop.

[0055] 4. Such as Figure 4 As shown, as the dust is thrown out, the weight of the adsorbent 510 continues to decrease, the right side of the wind shield 150, the connecting pipe 244, the second positive pressure hole 243, the first positive pressure hole 242 and the inner shell 512 of the adsorbent 510 are connected, and a positive pressure is formed in the inner shell 512, which blows out the remaining dust on the surface of the adsorbent 510.

[0056] 5. The adsorption member 510 returns to the initial position, and the dust falls onto the conveyor belt 4, which transports the dust away for centralized treatment.

[0057] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. The method for using the mixed sand dust reduction equipment is characterized by: The mixed sand dust reduction equipment includes an exhaust pipe, a dust exhaust fan is provided at the end of the exhaust pipe, a dust reduction mechanism is provided at the air inlet position of the dust exhaust fan, the dust reduction mechanism includes a dust collection bag and a watering unit above the dust collection bag, a dust removal part is provided below the dust reduction mechanism, a vertical channel is provided in the dust removal part, the vertical channel is connected to the exhaust pipe, a dust removal mechanism is provided in the vertical channel, the dust removal mechanism is arranged below the dust reduction mechanism, the dust removal mechanism includes an adsorbent, a support plate, a gravity sensing unit and a friction unit, a rotating driving part is provided on the side of the adsorbent, the adsorbent is arranged on the support plate, a gap is provided on the support plate for liquid to flow through, when the gravity of the adsorbent increases after adsorbing dust, the gravity sensing unit is triggered when the weight of the adsorbent reaches a set value, the gravity sensing unit transmits a signal to the friction unit, the friction unit approaches and contacts the adsorbent, the rotating driving part drives the adsorbent to rotate, and the dust is thrown out during the friction between the adsorbent and the friction unit; A rectangular groove is vertically arranged on the inner side of the side wall of the vertical channel, a rectangular slider is slidably connected in the rectangular groove, a rotary driving member is arranged in the rectangular slider, a horizontal rotating shaft is respectively arranged at both ends of the adsorption member, the horizontal rotating shaft penetrates into the rectangular slider and is rotatably connected with the rectangular slider, and the end of the horizontal rotating shaft is key-connected with the output shaft of the rotary driving member; The vertical channel has a rectangular cross section, and vertical slide grooves are arranged in two opposite side walls of the vertical channel. The gravity sensing unit includes a controller and a slide plate, and the slide plate is slidably connected in the slide groove. The support plate passes through the side wall of the vertical channel and is connected to the slide plate. A lifting spring is vertically arranged between the lower end of the slide plate and the slide groove, and two mutually connected conductive spring sheets on the plate are arranged on the side of the slide plate. Two conductive spring sheets in the groove connected to the controller are arranged in the slide groove. After the slide plate descends, the conductive spring sheets on the plate and the conductive spring sheets in the groove come into contact, and the controller sends a signal to the horizontal driving member and the rotating driving member, and the horizontal driving member drives the friction plate to approach and contact the adsorption member, and the rotating driving member drives the adsorption member to rotate. The inner shell of the adsorption component is cylindrical, and a plurality of air holes are provided on the ends and sides of the inner shell; a wind shield is vertically rotatably connected in the exhaust pipe, and the wind shield rotates horizontally when air flows; the upper end of the slide slot in one of the side walls of the vertical channel is connected to the air inlet of the dust exhaust fan, and a negative pressure hole connected to the vertical channel is provided on the side of the slide slot, and when the conductive elastic sheet on the plate contacts the conductive elastic sheet in the slot, the side slide slot, the negative pressure hole and the air hole are connected; another slide slot is arranged in the side wall away from the dust exhaust fan, and the other slide slot is connected to the side of the wind shield away from the dust exhaust fan, and a first positive pressure hole connected to the vertical channel is provided on the side of the slide slot, and the position of the first positive pressure hole is higher than the negative pressure hole, and a second positive pressure hole is provided on the slide plate, and the air hole, the first positive pressure hole, the second positive pressure hole and the side of the wind shield away from the dust exhaust fan can be connected at the same time; A transmission mechanism is arranged in the side wall of the vertical channel, and the transmission mechanism includes a vertically arranged rack, a gear, a transmission shaft, a cam and a push rod. The rack is connected to a slide plate in a slide groove in the side wall away from the dust exhaust fan. The rack is meshed with the gear. A ratchet groove is arranged on the gear. A ratchet and a guide part are arranged in the ratchet groove. The ratchet and the gear are coaxial. The guide part is radially arranged between the ratchet and the side wall of the ratchet groove. A guide groove is arranged in the guide part. A guide strip is slidably arranged in the guide groove. The end of the guide strip close to the ratchet is wedge-shaped and can contact with the gear teeth of the ratchet. A return spring is provided between the other end of the guide bar and the guide part, the gear is rotatably connected to the transmission shaft, and the ratchet and cam are coaxially fixed on the rotating shaft; when the rack moves downward, the rack drives the gear to rotate, and the guide bar slides on the tooth back of the ratchet; when the rack moves upward, the rack drives the gear to rotate, and the guide bar is inserted into the tooth groove of the ratchet, driving the ratchet, the transmission shaft and the cam to rotate together, and the cam drives the push rod to move up first and then down, and the upper end of the push rod can enter the exhaust duct and block the rotation of the wind shield, and the exhaust duct is blocked after the wind shield stops rotating; How to use the mixed sand dust reduction equipment: Step 1: In the initial state, the dust exhaust fan sucks the dust into the exhaust duct, and the watering unit sprinkles water to make the dust and water mist fall downward, and the dust falls on the adsorbent. The gravity of the adsorbent increases after the dust is adsorbed; Step 2: When the weight of the adsorbent reaches the set value, the conductive spring sheet on the plate contacts the conductive spring sheet in the slot, and the controller sends a signal to the horizontal driving member and the rotary driving member. The horizontal driving member drives the friction plate to approach and contact the adsorbent, and the rotary driving member drives the adsorbent to rotate. The dust is thrown out during the friction between the adsorbent and the friction unit. At the same time, the air inlet of the dust removal fan, the slide slot on the left wall, the negative pressure hole and the inner shell of the adsorbent are connected, and negative pressure is generated in the adsorbent, which produces an adsorption effect on the sponge on the surface of the adsorbent. Step 3: As the dust is thrown out, the weight of the adsorption part is reduced, and the slide moves upward. However, since the slide needs to drive the transmission mechanism to operate during the upward movement, the speed of the slide slows down during the upward movement, and the slide blocks the negative pressure hole. The negative pressure in the adsorption part disappears, and the adsorption part continues to rotate. After 10 seconds, the controller controls the horizontal drive part to drive the friction plate away from the adsorption part, and the controller controls the rotating drive part to stop. Step 4: As the dust is thrown out, the weight of the adsorbent continues to decrease, the right side of the windshield, the connecting pipe, the second positive pressure hole, the first positive pressure hole and the inner shell of the adsorbent are connected, and a positive pressure is formed in the inner shell, which blows out the residual dust on the surface of the adsorbent; Step 5: The adsorbent returns to its initial position, and the dust falls onto the conveyor belt, which transports the dust away for centralized treatment.

2. The method for using the mixed sand dust reduction equipment according to claim 1, characterized in that: The dust reduction mechanism also includes a vertically arranged grille plate, which provides support for the dust removal bag in the direction of air flow.

3. The method for using the mixed sand dust reduction equipment according to claim 2, characterized in that: The inner shell is a rigid strip-shaped shell.

4. The method for using the mixed sand dust reduction equipment according to claim 3, characterized in that: A plurality of protrusions are arranged on the friction plate.

5. The method for using the mixed sand dust reduction equipment according to claim 4, characterized in that: A V-shaped conveyor belt is provided at the lower end of the vertical channel.

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