Device for removing mortar on surface of recycled coarse aggregate

Abstract

The invention discloses a device for removing mortar on the surface of recycled coarse aggregate, which comprises a main body mechanism, a feeding and discharging mechanism and a screening mechanism, the main body mechanism comprises supports symmetrically arranged on the two sides, a roller rotationally installed between the opposite supports, a first transmission wheel fixed to one side of the roller, a first driving piece installed on the support on one side and connected with the first transmission wheel and a flow guide piece fixed to the inner wall of the roller, and the supports are used for installing the roller and keeping the stability of the roller during rotation; the roller is composed of two semi-open cylinders in the same shape and a plurality of connecting plates which are arranged in an annular array mode, the two ends of each connecting plate are fixedly connected with the ends of the semi-open cylinders on the two sides, a certain distance exists between the ends of the opposite semi-open cylinders, and when the semi-open cylinders on the two sides rotate, coarse aggregate in the semi-open cylinders can be driven to rotate and grind at a certain speed; the device for removing the mortar on the surface of the recycled coarse aggregate can efficiently remove the mortar on the surface of the coarse aggregate.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, in particular to a device for removing mortar from the surface of recycled coarse aggregate. Background Art

[0002] Recycled concrete is concrete made by using recycled aggregates to partially or completely replace natural aggregates. The so-called recycled aggregates refer to aggregates formed by crushing and grading waste concrete.

[0003] At present, when construction waste is recycled, mortar will adhere to the surface of broken concrete coarse aggregate. Many concrete production companies are reluctant to use recycled coarse aggregate. Generally, the strength of mortar is lower than that of rock. If the mortar can be removed, the recycling of construction waste can be significantly improved. Therefore, there is an urgent need for a device to remove the mortar on the surface of recycled coarse aggregate. Summary of the invention

[0004] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted by the present invention is: a device for removing mortar on the surface of recycled coarse aggregate, comprising: a main mechanism, a feeding and discharging mechanism and a screening mechanism, the main mechanism comprising supports symmetrically arranged on both sides, a roller rotatably installed between the relative supports, a first transmission wheel fixed on one side of the roller, a first driving member installed on one side support and connected to the first transmission wheel, and a guide member fixed on the inner wall of the drum.

[0006] The drum is composed of two half-open drums of the same shape and a plurality of connecting plates arranged in a ring array and fixedly connected at both ends to the ends of the half-open drums on both sides, with a certain distance between the ends of the half-open drums.

[0007] The feeding and discharging mechanism includes a sleeve sleeved in the middle of the drum, legs installed on both sides of the sleeve, a gear ring fixedly sleeved on one side of the sleeve, a second driving member installed on one side of the legs and meshing with the gear ring, a feeding pipe installed on one side of the sleeve and connected to the inner cavity of the sleeve, and a cover plate installed on the feeding pipe.

[0008] The connecting plate is embedded in the sleeve, and the end of the connecting plate is close to the inner wall of the sleeve. A feed port is opened on one side of the sleeve, and a discharge port is opened on the other side opposite to the sleeve.

[0009] The screening mechanism includes a screening member movably arranged on the outside of the sleeve near the discharge port, guide rails symmetrically fixed on both sides of the sleeve, transmission members slidably engaged on the guide rails on both sides and movably connected to the screening member, a discharge pipe fixed on the sleeve, a third driving member installed on the discharge pipe and passing through the end of the transmission member, and a spray member symmetrically fixed at the bottom end of the discharge pipe.

[0010] The screening element comprises an arc frame movably arranged near the discharge port of the sleeve, a screen fixed on the inner wall of the arc frame, and cylinders symmetrically fixed on both sides of the arc frame and extending through the sleeve.

[0011] The transmission member includes a waist-shaped frame sleeved on the end of the cylinder, a side plate symmetrically fixed on one side of the waist-shaped frame and embedded on the guide rail, a round rod fixed on one side of the waist-shaped frame, and a straight plate connecting the ends of the opposite round rods. The third driving member includes a third motor fixed on the outer surface of the discharge pipe and an eccentric wheel fixed on the second motor shaft. A waist-shaped hole is opened in the middle of the straight plate, and the eccentric protrusion on the eccentric wheel passes through the waist-shaped hole.

[0012] In a preferred example, the present invention can be further configured as follows: the first driving member includes a first motor fixed on a side support, a second transmission wheel fixed on the first motor shaft, and a belt with one end sleeved on the second transmission wheel and the other end sleeved on the first transmission wheel.

[0013] By adopting the above technical solution, when the first motor rotates, it drives the second transmission wheel to rotate, and the second transmission wheel drives the first transmission wheel to rotate through the belt. When the first transmission wheel rotates, it drives the drum to rotate. The rotation of the drum causes the coarse aggregate in the drum to rotate and grind at a certain speed. Since the mortar strength is lower than the rock strength, when the coarse aggregates collide with each other, the mortar attached to the surface of the aggregate can be effectively peeled off.

[0014] In a preferred example, the present invention can be further configured as follows: the guide member includes a plurality of support rods fixed in an annular array on the inner walls of the half-open cylinder on both sides and an annular guide cone fixed on the ends of the support rods, and the cross-section of the annular guide cone is diamond-shaped.

[0015] By adopting the above technical scheme, when the coarse aggregate is fed into the drum through the feed pipe, it can be introduced into the semi-open cylinders on both sides under the action of the annular guide cone, and when the semi-open cylinder rotates, it drives the connecting plate to rotate in the sleeve, driving the aggregate in the sleeve to rotate upward. When the aggregate rotates to a high place and falls, it can enter the semi-open cylinders on both sides again along the guide piece, thereby effectively avoiding the accumulation of aggregate in the inner cavity of the sleeve.

[0016] In a preferred example, the present invention can be further configured as follows: arc-shaped holes are opened on the outer sides of the sleeve located on both sides of the discharge port, and the cylinder is embedded in the arc-shaped holes.

[0017] By adopting the above technical solution, when the third driving member drives the transmission member to reciprocate, the transmission member drives the cylinder to reciprocate, but the movement of the cylinder is limited by the arc hole, so the reciprocating movement of the cylinder can be converted into arc reciprocating movement.

[0018] In a preferred example, the present invention can be further configured as follows: the second driving member includes a second motor fixed to one side leg and a gear fixed to the second motor shaft, and the gear is meshed with the gear ring.

[0019] By adopting the above technical solution, when the second motor is started, it drives the gear to rotate, the rotation of the gear drives the gear ring to rotate, and the rotation of the gear ring drives the sleeve to rotate, so that the feed port faces downward. At this time, the cover plate is pulled open to send out the peeled coarse aggregate.

[0020] In a preferred example, the present invention can be further configured as follows: the cover plate is arc-shaped and slides through the feed pipe, a pull plate is fixed at the end of the cover plate, and magnets are installed on both sides of the end of the cover plate.

[0021] By adopting the above technical solution, the cover plate can close the feed port on the sleeve, the pull plate is convenient for the user to pull the cover plate to move, and the magnet can ensure that the cover plate is adsorbed on the feed pipe to ensure the stability of the cover plate when closed.

[0022] In a preferred example, the present invention can be further configured as follows: the spray element includes a tube body fixed at the bottom end of the discharge pipe, a plurality of atomizing nozzles installed on the tube body and connected to the inner cavity of the tube body, and a water inlet pipe installed on one side of the tube body.

[0023] By adopting the above technical solution, when the mortar is discharged through the discharge pipe, clean water is sent into the inner cavity of the pipe body through the water inlet pipe, and then sprayed out through the atomizing nozzle to combine with the dust in the mortar, thereby preventing the dust from flying into the air when the mortar is discharged, thereby playing a dust reduction role.

[0024] By adopting the above technical solution, the beneficial effects achieved by the present invention are:

[0025] 1. In the present invention, a drum is rotatably installed on a relative support, and the drum is driven to rotate by a first driving member. The drum is composed of two identical semi-open and connecting plates arranged in a ring array and connected to the relatively semi-open. A sleeve is installed on the outside of the drum through a leg, and the connecting plate rotates in the sleeve. At the same time, a feed port is opened at the top of the sleeve, and a discharge port is opened at the bottom. A feed pipe and a cover plate are arranged on one side of the feed port, and a screening mechanism is arranged on one side of the discharge port. Through the above arrangement, when in use, it is only necessary to pour the coarse aggregate with mortar into the drum through the feed port, and then the drum rotates, so that the coarse aggregate in the drum is rotated and ground at a certain speed. Since the mortar strength is lower than the rock strength, when the coarse aggregate collides with each other, the mortar attached to the surface of the aggregate can be effectively stripped off, and the mortar is discharged through the discharge port and the screening mechanism, thereby realizing the stripping of the mortar on the surface of the coarse aggregate.

[0026] 2. In the present invention, a screening element is installed at the position of the sleeve at the discharge port, and guide rails are fixed on both sides of the sleeve. Transmission elements that slide and engage on the guide rails on both sides are provided. A third driving element is installed on one side of the discharge pipe. The third driving element is composed of a third motor and an eccentric wheel. The third driving element drives the transmission element to reciprocate. When the transmission element reciprocates, the screening element is driven to reciprocate. The reciprocating screening element can effectively screen the coarse aggregate and mortar that fall into the sleeve, and discharge the stripped mortar from the drum.

[0027] 3. In the present invention, a guide member is installed on the inner wall of the drum. Through the setting of the guide member, the coarse aggregate poured from the feed port can be effectively guided into the semi-open cylinders on both sides, and when the semi-open cylinder is rotating, the connecting plate is driven to rotate in the sleeve, driving the aggregate in the sleeve to rotate upward. When the aggregate rotates to a high place and falls, it can enter the semi-open cylinders on both sides again along the guide member, thereby effectively avoiding the accumulation of aggregate in the inner cavity of the sleeve. In addition, a gear ring is provided on one side of the sleeve, and a second driving member is installed on the support leg. After the coarse aggregate mortar is stripped, the second driving member is started to drive the gear ring to rotate, and the gear rotation drives the sleeve to rotate, so that the feed port faces downward. At this time, the cover plate is pulled open to send out the stripped coarse aggregate. The structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 It is a bottom view structural schematic diagram of the present invention;

[0030] Figure 3 It is a schematic diagram of the main mechanism structure of the present invention;

[0031] Figure 4 It is a schematic diagram of the cross-sectional structure of the main mechanism of the present invention;

[0032] Figure 5 It is a partial structural schematic diagram of the present invention;

[0033] Figure 6 It is a partial structural decomposition schematic diagram of the present invention;

[0034] Figure 7 It is a schematic cross-sectional view of the sleeve of the present invention;

[0035] Figure 8 It is a schematic diagram of the exploded structure of part of the screening mechanism of the present invention.

[0036] Reference numerals:

[0037] 100, main body; 110, support; 120, roller; 121, half-open cylinder; 122, connecting plate; 130, first transmission wheel; 140, first driving member; 141, first motor; 142, second transmission wheel; 143, belt; 150, guide member; 151, support rod; 152, annular guide cone;

[0038] 200, feeding and discharging mechanism; 210, sleeve; 211, feeding port; 212, discharging port; 213, arc hole; 220, supporting leg; 230, gear ring; 240, second driving member; 241, second motor; 242, gear; 250, feeding pipe; 260, cover plate; 261, pull plate; 262, magnet;

[0039] 300, screening mechanism; 310, screening element; 311, arc-shaped frame; 312, screen; 313, cylinder; 320, guide rail; 330, transmission element; 331, waist-shaped frame; 332, side plate; 333, round rod; 334, straight plate; 3341, waist-shaped hole; 340, discharge pipe; 350, third driving element; 351, third motor; 352, eccentric wheel; 360, spray element; 361, pipe body; 362, atomizing nozzle; 363, water inlet pipe. DETAILED DESCRIPTION

[0040] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0041] Some embodiments of the present invention are described below in conjunction with the accompanying drawings. Figure 1-5 ,.

[0042] Embodiment 1:

[0043] Combination Figure 1-8 As shown, a device for removing mortar from the surface of recycled coarse aggregate includes: a main body mechanism 100, a feeding and discharging mechanism 200 and a screening mechanism 300.

[0044] Among them, the main body mechanism 100 includes supports 110 symmetrically arranged on both sides, a roller 120 rotatably installed between the relative supports 110, a first transmission wheel 130 fixed on one side of the roller 120, a first driving member 140 installed on one side support 110 and connected to the first transmission wheel 130, and a guide member 150 fixed on the inner wall of the roller 120.

[0045] The support 110 is used to install the roller 120 and maintain the stability of the roller 120 when it rotates. The roller 120 consists of two half-open cylinders 121 of the same shape and a plurality of connecting plates 122 arranged in a ring array and fixedly connected to the ends of the half-open cylinders 121 on both sides at both ends. There is a certain distance between the ends of the half-open cylinders 121. When the half-open cylinders 121 on both sides rotate, the coarse aggregates inside them can be driven to rotate and grind at a certain speed. Since the mortar strength is lower than the rock strength, when the coarse aggregates collide with each other, the mortar attached to the surface of the aggregates can be effectively peeled off. The connecting plates 122 can ensure the synchronization of the rotation of the half-open cylinders 121 on both sides.

[0046] The first driving member 140 includes a first motor 141 fixed on a side support 110, a second transmission wheel 142 fixed on the shaft of the first motor 141, and a belt 143 with one end sleeved on the second transmission wheel 142 and the other end sleeved on the first transmission wheel 130. When the first motor 141 rotates, the second transmission wheel 142 is driven to rotate. The second transmission wheel 142 rotates and drives the first transmission wheel 130 to rotate through the belt 143. When the first transmission wheel 130 rotates, it drives the drum 120 to rotate.

[0047] The feeding and discharging mechanism 200 includes a sleeve 210 sleeved in the middle of the drum 120, legs 220 installed on both sides of the sleeve 210, a gear ring 230 fixedly sleeved on one side of the sleeve 210, a second driving member 240 installed on one side of the legs 220 and meshing with the gear ring 230, a feeding pipe 250 installed on one side of the sleeve 210 and connected to the inner cavity of the sleeve 210, and a cover plate 260 installed on the feeding pipe 250.

[0048] The connecting plate 122 is embedded in the sleeve 210, and the end of the connecting plate 122 is close to the inner wall of the sleeve 210. A feed port 211 is opened on one side of the sleeve 210, and a discharge port 212 is opened on the other side opposite to the sleeve 210. Through this arrangement, coarse aggregate and mortar in the half-open cylinders 121 on both sides can enter the sleeve 210 and gather near the discharge port 212, which is convenient for the screening mechanism 300 to perform screening.

[0049] The guide member 150 includes a plurality of support rods 151 fixed in an annular array on the inner walls of the semi-open cylinders 121 on both sides and an annular guide cone 152 fixed at the ends of the support rods 151. The cross section of the annular guide cone 152 is rhombus-shaped. When the coarse aggregate is fed into the drum 120 through the feed pipe 250, it can be introduced into the semi-open cylinders 121 on both sides under the action of the annular guide cone 152. When the semi-open cylinder 121 rotates, it drives the connecting plate 122 to rotate in the sleeve 210, driving the aggregate in the sleeve 210 to rotate upward. When the aggregate rotates to a high place and falls, it can enter the semi-open cylinders 121 on both sides again along the guide member 150, thereby effectively preventing the aggregate from accumulating in the inner cavity of the sleeve 210.

[0050] The support leg 220 is used to support the sleeve 210 to prevent the sleeve 210 from applying force to the drum 120. The second driving member 240 includes a second motor 241 fixed on one side of the support leg 220 and a gear 242 fixed on the shaft of the second motor 241. The gear 242 and the gear ring 230 are meshed with each other, so that when the second motor 241 is started, the gear 242 is driven to rotate, and the rotation of the gear 242 drives the gear ring 230 to rotate. The rotation of the gear ring 230 drives the sleeve 210 to rotate, so that the feed port 211 faces downward. At this time, the cover plate 260 is pulled open to send out the coarse aggregate that has been stripped.

[0051] The feed pipe 250 is used to feed the coarse aggregate into the drum 120, or to feed out the coarse aggregate that has been stripped in the drum 120. The cover plate 260 is arc-shaped and slides through the feed pipe 250 to close the feed port 211 on the sleeve 210. A pull plate 261 is fixed to the end of the cover plate 260 to facilitate the user to pull the cover plate 260 to move, and magnets 262 are installed on both sides of the end of the cover plate 260 to ensure that the cover plate 260 is adsorbed on the feed pipe 250, thereby ensuring the stability of the cover plate 260 when closed.

[0052] The screening mechanism 300 is used to screen the coarse aggregate and mortar in the sleeve 210 near the discharge port 212, including a screening member 310 movably arranged on the outside of the sleeve 210 near the discharge port 212, guide rails 320 symmetrically fixed on both sides of the sleeve 210, a transmission member 330 slidably engaged on the guide rails 320 on both sides and movably connected to the screening member 310, a discharge pipe 340 fixed on the sleeve 210, a third driving member 350 installed on the discharge pipe 340 and passing through the end of the transmission member 330, and a spray member 360 symmetrically fixed at the bottom end of the discharge pipe 340.

[0053] The screening element 310 includes an arc-shaped frame 311 movably arranged on the sleeve 210 near the discharge port 212, a screen 312 fixed on the inner wall of the arc-shaped frame 311, and a cylinder 313 symmetrically fixed on both sides of the arc-shaped frame 311 and extending through the sleeve 210. The arc-shaped frame 311 is used to install the screen 312 and drive the screen 312 to move back and forth. The screen 312 can screen coarse aggregate and mortar. Arc-shaped holes 213 are opened on the outer sides of the sleeve 210 at the discharge port 212. The cylinder 313 is embedded in the arc-shaped hole 213 to limit the arc-shaped frame 311 so that the arc-shaped frame 311 is close to the outer side of the sleeve 210 when moving.

[0054] The guide rail 320 is used to limit the movement of the transmission member 330. The transmission member 330 includes a waist-shaped frame 331 sleeved on the end of the cylinder 313, a side plate 332 symmetrically fixed on one side of the waist-shaped frame 331 and embedded on the guide rail 320, a round rod 333 fixed on one side of the waist-shaped frame 331, and a straight plate 334 connecting the ends of the opposite round rods 333. At the same time, the third driving member 350 includes a third motor 351 fixed on the outer surface of the discharge pipe 340 and an eccentric wheel 352 fixed on the shaft of the second motor 241. A waist-shaped hole 3341 is opened in the middle of the straight plate 334, and the eccentric protrusion on the eccentric wheel 352 penetrates Through the waist-shaped hole 3341, when the third motor 351 is started, it drives the eccentric wheel 352 to rotate, and the rotation of the eccentric wheel 352 drives the straight plate 334 to reciprocate. When the straight plate 334 reciprocates, the waist-shaped frame 331 is driven to reciprocate through the round rod 333, and the reciprocating movement of the waist-shaped frame 331 drives the cylinder 313 to reciprocate, but the cylinder 313 is limited by the arc hole 213. Therefore, the cylinder 313 reciprocates in an arc, driving the arc frame 311 to reciprocate in an arc, that is, driving the screen 312 to reciprocate in an arc, so as to efficiently screen the coarse aggregate and mortar near the discharge port 212.

[0055] The discharge pipe 340 is used to discharge the screened mortar. The spray part 360 includes a tube body 361 fixed at the bottom end of the discharge pipe 340, a plurality of atomizing nozzles 362 installed on the tube body 361 and connected to the inner cavity of the tube body 361, and a water inlet pipe 363 installed on one side of the tube body 361. When the mortar is discharged through the discharge pipe 340, clean water is delivered into the inner cavity of the tube body 361 through the water inlet pipe 363, and then atomized and sprayed out through the atomizing nozzle 362 to combine with the dust in the mortar, thereby preventing the dust from flying into the air when the mortar is discharged, thereby playing a dust reduction role.

[0056] The working principle and use process of the present invention are as follows: when in use, the cover plate 260 is opened, and the coarse aggregate to be stripped is poured into the drum 120 through the feed pipe 250. After the coarse aggregate enters the drum 120, it is dispersed into the half-open cylinders 121 on both sides under the action of the annular guide cone 152. The cover plate 260 is closed, and the first motor 141 is started. The rotation of the first motor 141 drives the second transmission wheel 142 to rotate. The rotation of the second transmission wheel 142 drives the first transmission wheel 130 to rotate through the belt 143, and then drives the drum 120 to rotate. The drum 120 rotates, so that the coarse aggregate in the drum 120 rotates and grinds at a certain speed. Since the mortar strength is lower than the rock strength, the coarse aggregates can effectively strip off the attached mortar on the aggregate surface when they collide with each other. When the drum 120 rotates, a part of the coarse aggregate and the stripping mortar enter the gap between the half-open cylinders 121 on both sides into the sleeve 210, and gather near the discharge port 212. At this time, the third motor 351 is started, driving the eccentric wheel 352 to rotate, and the rotation of the eccentric wheel 352 drives the straight plate 334 to reciprocate. When the straight plate 334 reciprocates, the waist frame 331 is driven to reciprocate through the round rod 333, and the reciprocating movement of the waist frame 331 drives the cylinder 313 to reciprocate, but the cylinder 313 is limited by the arc hole 213, so the cylinder 313 reciprocates in an arc, driving the arc frame 311 to reciprocate. , that is, the screen 312 is driven to move back and forth, and the coarse aggregate and mortar near the discharge port 212 are efficiently screened, and the stripped mortar is discharged through the screen 312. When the mortar on the coarse aggregate is stripped, the second motor 241 is started, driving the gear 242 to rotate, and the rotation of the gear 242 drives the gear ring 230 to rotate, and then drives the sleeve 210 to rotate, so that the feed port 211 faces downward, and at this time, the cover plate 260 is pulled open to send out the stripped coarse aggregate.

[0057] In the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The term "and / or" used herein includes any and all combinations of one or more related listed items. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0058] It should be noted that when an element is referred to as being "assembled on", "installed on", "fixed on" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0059] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A device for removing mortar from the surface of recycled coarse aggregate, comprising: A main mechanism (100), a material feeding and discharging mechanism (200) and a screening mechanism (300), characterized in that the main mechanism (100) comprises supports (110) symmetrically arranged on both sides, a roller (120) rotatably mounted between the opposite supports (110), a first transmission wheel (130) fixed on one side of the roller (120), a first driving member (140) mounted on one side of the support (110) and connected to the first transmission wheel (130), and a flow guide member (150) fixed on the inner wall of the roller (120); The roller (120) is composed of two half-open cylinders (121) of the same shape and a plurality of connecting plates (122) arranged in a ring array and having two ends fixedly connected to the ends of the half-open cylinders (121) on both sides, and there is a certain distance between the ends of the half-open cylinders (121); The feeding and discharging mechanism (200) comprises a sleeve (210) sleeved on the middle part of the roller (120), legs (220) installed on both sides of the sleeve (210), a toothed ring (230) fixedly sleeved on one side of the sleeve (210), a second driving member (240) installed on one side of the legs (220) and meshing with the toothed ring (230), a feeding pipe (250) installed on one side of the sleeve (210) and communicating with the inner cavity of the sleeve (210), and a cover plate (260) installed on the feeding pipe (250); The connecting plate (122) is embedded in the sleeve (210), and the end of the connecting plate (122) is close to the inner wall of the sleeve (210), a feed port (211) is opened on one side of the sleeve (210), and a discharge port (212) is opened on the other side opposite to the sleeve (210); The screening mechanism (300) comprises a screening element (310) movably arranged outside the sleeve (210) near the discharge port (212), guide rails (320) symmetrically fixed on both sides of the sleeve (210), a transmission element (330) slidably engaged on both sides of the guide rails (320) and movably connected to the screening element (310), a discharge pipe (340) fixed on the sleeve (210), a third driving element (350) installed on the discharge pipe (340) and passing through the end of the transmission element (330), and a spray element (360) symmetrically fixed on the bottom end of the discharge pipe (340); The screening element (310) comprises an arc-shaped frame (311) movably arranged on the sleeve (210) near the discharge port (212), a screen (312) fixed on the inner wall of the arc-shaped frame (311), and cylinders (313) symmetrically fixed on both sides of the arc-shaped frame (311) and extending through the sleeve (210); The transmission member (330) comprises a waist-shaped frame (331) sleeved on the end of the cylinder (313), a side plate (332) symmetrically fixed on one side of the waist-shaped frame (331) and embedded in the guide rail (320), a round rod (333) fixed on one side of the waist-shaped frame (331), and a straight plate (334) connecting the ends of the opposite round rods (333); the third driving member (350) comprises a third motor (351) fixed on the outer surface of the discharge pipe (340) and an eccentric wheel (352) fixed on the shaft of the second motor (241); a waist-shaped hole (3341) is opened in the middle of the straight plate (334), and the eccentric protrusion on the eccentric wheel (352) passes through the waist-shaped hole (3341).

2. The device for removing mortar from the surface of recycled coarse aggregate according to claim 1, characterized in that: The first driving member (140) comprises a first motor (141) fixed on a side support (110), a second transmission wheel (142) fixed on the shaft of the first motor (141), and a belt (143) with one end sleeved on the second transmission wheel (142) and the other end sleeved on the first transmission wheel (130).

3. The device for removing mortar from the surface of recycled coarse aggregate according to claim 1, characterized in that: The flow guide (150) comprises a plurality of support rods (151) fixed in an annular array on the inner walls of the half-open cylinders (121) on both sides, and an annular flow guide cone (152) fixed at the ends of the support rods (151); the cross section of the annular flow guide cone (152) is rhombus-shaped.

4. The device for removing mortar from the surface of recycled coarse aggregate according to claim 1, characterized in that: The sleeve (210) is provided with arc-shaped holes (213) on the outer sides of both sides of the discharge port (212), and the cylinder (313) is embedded in the arc-shaped holes (213).

5. The device for removing mortar from the surface of recycled coarse aggregate according to claim 1, characterized in that: The second driving member (240) comprises a second motor (241) fixed on one side leg (220) and a gear (242) fixed on the shaft of the second motor (241), and the gear (242) is meshed with the gear ring (230).

6. The device for removing mortar from the surface of recycled coarse aggregate according to claim 1, characterized in that: The cover plate (260) is arc-shaped and is slidably arranged to pass through the feed pipe (250). A pull plate (261) is fixed at the end of the cover plate (260), and magnets (262) are installed on both sides of the end of the cover plate (260).

7. The device for removing mortar from the surface of recycled coarse aggregate according to claim 1, characterized in that: The spraying member (360) comprises a tube body (361) fixed to the bottom end of the discharge pipe (340), a plurality of atomizing nozzles (362) mounted on the tube body (361) and connected to the inner cavity of the tube body (361), and a water inlet pipe (363) mounted on one side of the tube body (361).

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