Highway construction raw material dust-free integrated crushing device

Abstract

The invention discloses a dust-free integrated crushing device for highway construction raw materials. The dust-free integrated crushing device comprises a cart, the grinding box is arranged on one side of the upper end of the cart; the multi-stage screening box is arranged on the other side of the upper end of the trolley; the pretreatment assembly is located above the grinding box and the multi-stage screening box, the vibration structure is arranged in the grinding box, the grinding structure is located above the vibration structure, and the multi-stage screening structure is arranged in the multi-stage screening box; a spraying structure is arranged on one side of the upper end of the cart, and the material collecting bin is arranged at the lower end in the grinding box. Compared with the prior art, the device has the advantages that dust pollution can be reduced, materials can be heated and dried, the cement powder and aggregate separation effect is improved, waste concrete can be screened into coarse aggregate, fine aggregate and cement powder according to the granularity, the cement powder attached to the surface of the coarse aggregate can be ground, and the grinding efficiency is improved. The cement powder is separated from the aggregate, so that the aggregate quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pulverizing equipment, in particular to a dust-free integrated pulverizing device for highway construction raw materials. Background Art

[0002] In highway construction, most waste materials can be recycled. In the process of material processing, the materials need to be crushed to facilitate the rational use of the waste materials, which can not only save resources but also avoid environmental pollution. Concrete waste mainly includes aggregates, cement powder and steel bars. One of the keys to the reuse of waste concrete is the separation of aggregates and matrix, thereby improving the quality of recycled aggregates, thereby improving the various properties of recycled aggregate concrete, and increasing the recovery rate of the matrix, so that both recycled aggregates and matrix can be fully utilized.

[0003] However, in the prior art, when treating concrete waste from highway construction, the concrete is only graded and screened by crushing and grinding equipment, and particles of different sizes are collected in batches, without effectively separating aggregate and cement powder, thereby affecting the quality of recycled cement production.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the above technical defects and provide a dust-free integrated crushing device for highway construction raw materials, which can be pre-treated with waste concrete to reduce dust pollution, and heat and dry the materials to avoid material adhesion. At the same time, the increase in temperature can improve the effect of separating cement powder from aggregate. By installing a multi-stage screening structure, the waste concrete can be screened into coarse aggregate, fine aggregate and cement powder according to the particle size. By installing a vibration structure and a grinding structure, the cement powder attached to the surface of the coarse aggregate can be ground to separate the cement powder from the aggregate and improve the quality of the aggregate. The cement powder ground on the coarse aggregate is mixed with the cement powder screened and water is added to obtain a cementitious material.

[0006] In order to solve the above problems, the technical solution of the present invention is: a dust-free integrated crushing device for highway construction materials, comprising:

[0007] Cart;

[0008] A grinding box, the grinding box being arranged on one side of the upper end of the cart;

[0009] A multi-stage screening box, which is arranged on the other side of the upper end of the cart;

[0010] A pretreatment component, the pretreatment component is located above the grinding box and the multi-stage screening box, the pretreatment component includes a jaw crusher, an iron remover is provided at the lower end of the jaw crusher, a conveyor belt is provided below the iron remover, a heated screw conveyor is provided below the conveyor belt, and a spray structure is provided on one side of the upper end of the cart;

[0011] A vibration structure, the vibration structure is arranged inside the grinding box, the vibration structure includes side frames, the side frames are symmetrically provided with two groups, a vertical guide rod one is arranged inside the side frames, a spring one is sleeved on the surface of the guide rod one, a vibration box is arranged between the two side frames, both ends of the vibration box are sleeved on the guide rod one, a support column is arranged on the upper end of the vibration box, a material receiving assembly is arranged on the upper end of the support column, side plates are arranged on both ends of the two side frames, a slidable guide rod two is arranged inside the side plates, and a spring two is sleeved on the surface of the guide rod two;

[0012] A grinding structure, the grinding structure is located above the vibration structure, the grinding structure includes an electric push rod and a support plate, one end of the support plate is provided with a connection groove 1, a connection groove 3 is provided below the connection groove 1, the fixed end of the electric push rod is hingedly connected to the inside of the connection groove 1, the connection groove 3 is provided with a hinged support rod, the upper end of the support rod is provided with a connection groove 2, the telescopic end of the electric push rod is hingedly connected to the connection groove 2, one end of the support rod is provided with a motor 1, and the output end of the motor 1 is provided with a grinding disc;

[0013] A multi-stage screening structure, the multi-stage screening structure is arranged inside the multi-stage screening box, the multi-stage screening structure comprises motor 2, the motor 2 is located at the lower end of the multi-stage screening box, the output end of the motor 2 is provided with a rotating shaft, the surface of the rotating shaft is sleeved with a screening assembly and a screen, the rotating shaft can rotate inside the screening assembly and the screen, the upper end of the rotating shaft is provided with a motor 3, the output end of the motor 3 is provided with a connecting rod, the surface of the connecting rod is provided with a sleeve, the surface of the sleeve is provided with multiple groups of levers, a shell is provided above the screen, one end of the shell is fixedly connected to the inside of the rotating shaft, one end of the shell is provided with a motor 4, the output end of the motor 4 is provided with a rotating rod, the surface of the rotating rod is sleeved with multiple groups of cams, the lower end of the cam is provided with a flapping plate, the flapping plate is slidably connected to the lower end of the shell, short plates are provided at both ends of the flapping plate, the lower end of the short plate is provided with a spring telescopic rod, and the lower end of the spring telescopic rod is fixedly connected to the lower end of the shell;

[0014] The spray structure includes a water tank, a water pump is provided at the upper end of the water tank, a connecting pipe is provided at the upper end of the water pump, a branch pipe is provided at the other end of the connecting pipe, the other end of the branch pipe is connected to the upper end of the jaw crusher, an atomizing nozzle is provided at the other end of the branch pipe, one end of the water pump is connected to the support plate inside the grinding box through a pipeline, and a water outlet is provided at the lower end of the support plate;

[0015] A material collection bin is arranged at the lower end of the grinding box.

[0016] Furthermore, a rotating semi-circular disk is provided at the front and rear ends of the vibration box, the spring 1 is located between the side frame and the vibration box, one end of the guide rod 2 is fixedly connected to the side frame, and the other end of the guide rod 2 is provided with a limit plate, the spring 2 is located between the side frame and the side plate, a motor 5 is provided inside the vibration box, and the material receiving assembly includes a square frame, a filter is provided above the square frame, a hose is provided at the lower end of the square frame, and the lower end of the hose is connected to the material collection bin.

[0017] Furthermore, the support plate is provided with multiple groups along the direction of the material receiving assembly, and the electric push rod, connecting groove 2, connecting groove 1, support rod, connecting groove 3, motor 1, and grinding disc are provided with multiple groups along the direction of the support plate.

[0018] Furthermore, the screening assembly includes a cross support and multiple groups of rings, the cross support is fixedly connected to the inside of the multi-stage screening box, the rotating shaft is rotatably connected to the center of the cross support, the multiple groups of rings are connected to the cross support at intervals, and the multiple groups of shift rods are located in the gaps between the multiple groups of rings.

[0019] Furthermore, a feed port is provided at the upper end of the grinding box close to the multi-stage screening box, a discharge port is provided at the end of the grinding box away from the multi-stage screening box, a guide plate is provided at the feed port inside the grinding box, and the guide plate is located at the lower side of one end of a material receiving component, and the end of the material receiving component close to the guide plate is lower than the other end of the material receiving component.

[0020] Furthermore, the multi-stage screening box is provided with discharge port 2 and discharge port 4 at one end close to the grinding box, one end of discharge port 2 is located on the upper side of the screening assembly, and the other end is located on the upper side of the feed port, discharge port 4 is connected with the aggregate bin, and discharge port 4 is located on the upper side of the bottom of the multi-stage screening box, and the multi-stage screening box is provided with discharge port 3 at one end away from the grinding box, and discharge port 3 is located on the upper side of the screen.

[0021] Furthermore, the pretreatment component also includes a box body, the iron remover and the conveyor belt are located inside the box body, a control box for controlling the iron remover and the conveyor belt is provided on one side of the box body, a control device for controlling the jaw crusher is provided on the upper end of the control box, a guide plate 2 is provided inside the box body, the guide plate 2 is located between the iron remover and one end of the conveyor belt, a material receiving frame is provided at the lower end of the guide plate 2, the lower end of the material receiving frame is connected to the feed of the heating screw conveyor, and the discharge of the heating screw conveyor is connected to the multi-stage screening box.

[0022] Furthermore, the ring and the screen are both conical structures, and the bottom of the multi-stage screening box is inclined toward one end.

[0023] The advantages of the present invention compared with the prior art are:

[0024] (1) The present invention crushes the waste concrete by installing pretreatment equipment, which is convenient for subsequent screening and grinding. The atomizing nozzle sprays water at the jaw crusher to reduce dust pollution. The material is heated and dried at the heating screw conveyor to avoid material adhesion. At the same time, the temperature increase can improve the effect of separating cement powder from aggregate.

[0025] (2) The present invention can screen the waste concrete into coarse aggregate, fine aggregate and cement powder according to the particle size by installing a multi-stage screening structure, and the second motor drives the rotating shaft to rotate, which can simultaneously drive the connecting rod and the housing to rotate along with the rotating shaft, and the third motor starts to drive the connecting rod to rotate, so that the lever rotates, and the lever can prevent the broken materials from being stuck in the gap between the rings and affecting the feeding; the fourth motor drives the rotating rod to rotate, and the rotation of the rotating rod drives the cam to rotate, and the spring telescopic rod is used to realize the continuous up and down reciprocating movement of the flapping plate, which can prevent the cement powder from clogging the screen;

[0026] (3) The present invention can grind the cement powder attached to the surface of the coarse aggregate by installing a vibration structure and a grinding structure, so as to separate the cement powder from the aggregate and improve the quality of the aggregate. The cement powder ground on the coarse aggregate is mixed with the cement powder screened and water is added to obtain a cementitious material. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an external stereoscopic device for dust-free integrated crushing of raw materials for highway construction according to the present invention. Figure 1 .

[0028] Figure 2 It is an external stereoscopic device for dust-free integrated crushing of raw materials for highway construction according to the present invention. Figure 2 .

[0029] Figure 3 The present invention is a three-dimensional internal structure of a dust-free integrated crushing device for highway construction raw materials. Figure 1 .

[0030] Figure 4 The present invention is a three-dimensional internal structure of a dust-free integrated crushing device for highway construction raw materials. Figure 2 .

[0031] Figure 5 The present invention is a three-dimensional internal structure of a dust-free integrated crushing device for highway construction raw materials. Figure 3 .

[0032] Figure 6 This is an enlarged view of point A of a dust-free integrated crushing device for highway construction raw materials of the present invention.

[0033] Figure 7 This is an enlarged view of point B of a dust-free integrated crushing device for highway construction raw materials of the present invention.

[0034] Figure 8 It is a diagram showing the internal structure of a shell of a dust-free integrated crushing device for highway construction raw materials according to the present invention.

[0035] Fig. 9 It is a three-dimensional diagram of a material receiving assembly of a dust-free integrated crushing device for highway construction raw materials of the present invention.

[0036] Fig.10 It is a three-dimensional diagram of the multi-stage screening structure part of a dust-free integrated crushing device for highway construction raw materials of the present invention.

[0037] As shown in the figure: 1. Cart; 2. Grinding box; 201. Feeding port; 202. Discharging port 1; 203. Guide plate 1; 3. Multi-stage screening box; 301. Discharging port 2; 302. Discharging port 3; 303. Discharging port 4; 4. Pretreatment component; 401. Box; 402. Control box; 403. Guide plate 2; 404. Material receiving frame; 5. Vibration structure; 501. Side frame; 502. Guide rod 1; 503, spring 1; 504, vibration box; 505, support column; 506, material receiving assembly; 5061, square frame; 5062, filter screen; 5063, hose; 507, semicircular disc; 508, side plate; 509, guide rod 2; 510, spring 2; 511, limit plate; 512, 6, grinding structure; 601, electric push rod; 602, connecting groove 2; 603, engagement Connecting slot 1; 604, support rod; 605, connecting slot 3; 606, motor 1; 607, grinding disc; 608, support plate; 7, multi-stage screening structure; 701, motor 2; 702, rotating shaft; 703, screening assembly; 7031, cross support; 7032, ring; 704, screen; 705, connecting rod; 706, sleeve; 707, lever; 708, housing; 709, electric Machine four; 710, rotating rod; 712, beating plate; 713, short plate; 714, spring telescopic rod; 8, jaw crusher; 801, control equipment; 9, iron remover; 10, conveyor belt; 11, heated screw conveyor; 12, spray structure; 1201, water tank; 1202, water pump; 1203, connecting pipe; 1204, branch pipe; 1205, atomizing nozzle; 13, aggregate bin. DETAILED DESCRIPTION

[0038] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings, wherein the same components are represented by the same reference numerals.

[0039] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0040] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0041] Embodiment 1

[0042] like Figures 1 to 10 As shown, a dust-free integrated crushing device for highway construction raw materials includes a cart 1, which can drive the entire device to move. A pretreatment component 4 is installed at the top of the device. The pretreatment component 4 is used for pretreatment of waste concrete. The pretreatment component 4 is located above the grinding box 2 and the multi-stage screening box 3. The pretreatment component 4 includes a jaw crusher 8. The waste concrete can be crushed into a required particle size by the jaw crusher 8. An iron remover 9 is installed at the lower end of the jaw crusher 8. A conveyor belt 10 is installed below the iron remover 9. The iron remover 9 and the conveyor belt 10 are located inside the box 401. Concrete particles that have been initially crushed fall on the conveyor belt 10 for transportation. The crushed concrete may contain steel bars. The steel bars are attracted and transported by the iron remover 9 and separated from the concrete particles. The concrete particles are transported along the conveyor belt 10 and fall into the receiving frame 404. The steel bars move to the outside of the box 401 through the guide plate 403 to collect and process the steel bars in a centralized manner.

[0043] A guide plate 403 is installed inside the box 401, and the guide plate 403 is located between the iron remover 9 and one end of the conveyor belt 10. A material receiving frame 404 is installed at the lower end of the guide plate 403. A control box 402 for controlling the iron remover 9 and the conveyor belt 10 is installed on one side of the box 401. A control device 801 for controlling the jaw crusher 8 is installed on the upper end of the control box 402. The jaw crusher 8, the iron remover 9 and the conveyor belt 10 are all existing known technologies.

[0044] A heated screw conveyor 11 is installed below the conveyor belt 10, the lower end of the material receiving frame 404 is connected to the feeding end of the heated screw conveyor 11, and the discharging end of the heated screw conveyor 11 is connected to the multi-stage screening box 3. After the concrete particles with steel bars removed pass through the heated screw conveyor 11, they enter the multi-stage screening box 3. The multi-stage screening box 3 is installed on one side of the upper end of the cart 1. At this time, the concrete particles mainly include coarse aggregate, fine aggregate, and cement powder.

[0045] The multi-stage screening structure 7 is installed inside the multi-stage screening box 3. The multi-stage screening structure 7 includes a second motor 701. The second motor 701 is located at the lower end of the multi-stage screening box 3. A rotating shaft 702 is installed at the output end of the second motor 701. The second motor 701 can drive the rotating shaft 702 to rotate. A screening component 703 and a screen 704 are sleeved on the surface of the rotating shaft 702. The screening component 703 and the screen 704 are fixedly installed inside the multi-stage screening box 3. The rotating shaft 702 can rotate inside the screening component 703 and the screen 704. The screening component 703 includes a cross support 7031 and multiple groups of rings 7032. The cross support 7031 is fixedly installed inside the multi-stage screening box 3. The rotating shaft 702 is rotatably connected to the center of the cross support 7031, and multiple groups of rings 7032 are connected to the cross support 7031 at intervals.

[0046] A motor 3 is installed at the upper end of the rotating shaft 702, and a connecting rod 705 is installed at the output end of the motor 3. The motor 3 can drive the connecting rod 705 to rotate. A sleeve 706 is installed on the surface of the connecting rod 705. The sleeve 706 is located on the upper side of the ring 7032. A plurality of levers 707 are installed on the surface of the sleeve 706. The plurality of levers 707 are located at the gaps between the plurality of rings 7032. When concrete crushed materials fall on the plurality of rings 7032, the gaps between the plurality of rings 7032 cause the fine aggregate and powder to fall downward, and the coarse aggregate remains on the ring 7032. The motor 2 701 is started to drive the rotating shaft 702 to rotate. When the motor 705 is started, the connecting rod 705 can be driven to rotate along with the rotating shaft 702. The motor 3 is started to drive the connecting rod 705 to rotate, which can make the lever 707 rotate. The lever 707 can prevent the broken materials from being stuck in the gap between the rings 7032 and affecting the feeding. The ring 7032 is a conical structure. During the process of the connecting rod 705 and the sleeve 706 rotating and pushing the materials, the coarse aggregate will move to the edge of the ring 7032. The multi-stage screening box 3 is provided with a discharge port 2 301 at one end close to the grinding box 2. One end of the discharge port 2 301 is located on the upper side of the screening component 703, and the coarse aggregate will flow out through the screening component 703.

[0047] Fine aggregate and cement powder fall on the screen 704, and the cement powder falls into the bottom of the multi-stage screening box 3 through the screen 704. A discharge port 303 is provided at one end of the multi-stage screening box 3, and the discharge port 303 is connected with the aggregate bin 13. The discharge port 303 is located at the bottom of the multi-stage screening box 3, and the bottom of the multi-stage screening box 3 is inclined toward the discharge port 303, so that the powder can enter the aggregate bin 13.

[0048] One end of the shell 708 is fixedly installed inside the rotating shaft 702, and the shell 708 is located on the upper side of the screen 704. A motor 709 is installed at one end inside the shell 708, and a rotating rod 710 is installed at the output end of the motor 709. The motor 709 can drive the rotating rod 710 to rotate. The surface of the rotating rod 710 is covered with multiple groups of cams 711, and the cams 711 will rotate with the rotating rod 710. A flapping plate 712 is provided at the lower end of the cam 711, and the flapping plate 712 is slidably installed at the lower end of the shell 708. Short plates 713 are installed at both ends of the flapping plate 712, and a spring telescopic rod 714 is installed at the lower end of the short plate 713. The lower end of the spring telescopic rod 714 is fixedly installed at the lower end of the shell 708. When the rotating rod 710 rotates and drives the cam 711 to rotate, the flapping plate 712 can move downward, and the flapping plate 712 can move downward. When the beating plate 712 moves downward, the short plate 713 will compress the spring telescopic rod 714. When the cam 711 rotates and does not contact the beating plate 712, the spring telescopic rod 714 is restored, so that the beating plate 712 moves upward, thereby realizing the continuous up and down reciprocating movement of the beating plate 712, which can prevent the cement powder from clogging the screen 704. The discharge port four 303 is located on the upper side of the bottom of the multi-stage screening box 3. The multi-stage screening box 3 is installed with the discharge port three 302 at one end away from the grinding box 2. The discharge port three 302 is located on the upper side of the screen 704. The screen 704 is a conical structure. The fine aggregate moves to the edge of the screen 704. At the same time, the shell 708 can push the material as the rotating shaft 702 rotates, which is convenient for the screening of cement powder and fine aggregate. The fine aggregate flows out and is collected through the discharge port three 302.

[0049] The grinding box 2 is installed at the upper end of the cart 1 and is located on one side of the multi-stage screening box 3. The vibration structure 5 is installed inside the grinding box 2. The vibration structure 5 includes a side frame 501. Two groups of side frames 501 are symmetrically installed. A vertical guide rod 502 is installed inside the side frame 501. A spring 503 is installed on the surface of the guide rod 502. A vibration box 504 is located between the two side frames 501. Both ends of the vibration box 504 are sleeved on the guide rod 502. The spring 503 is located between the side frame 501 and the vibration box 504. A support column 505 is installed on the upper end of the vibration box 504. A material receiving assembly 506 is installed on the upper end of the support column 505. Side plates 508 are installed on both ends of the two side frames 501. A slidable guide rod 509 is installed inside the side plate 508. A spring 510 is installed on the surface of the guide rod 509. The guide rod 509 is The end is fixedly mounted on one end of the side frame 501, and a limit plate 511 is installed on the other end of the guide rod 1 509. The limit plate 511 can be separated from the side plate 508 on the surface of the guide rod 2 509. The spring 2 510 is located between the side frame 501 and the side plate 508. A rotatable semi-disc 507 is installed at the front and rear ends of the vibration box 504. A motor 5 is installed inside the vibration box 504. The output end of the motor 5 is connected to the center of the semi-disc 507 to drive the semi-disc 507 to rotate. When the semi-disc 507 rotates, since the center of gravity of the semi-disc 507 is not in the same position, the vibration box 504 is driven to vibrate, and the vibration of the vibration box 504 moves up, down, left and right under the restriction of the guide rod 1 502 and the guide rod 2 509. The spring 1 503 and the spring 2 510 provide a vibration effect, thereby generating up, down, left and right vibrations on the docking assembly 506.

[0050] A feed port 201 is provided at the upper end of the grinding box 2, close to the multi-stage screening box 3. A discharge port 202 is provided at the end of the grinding box 2 away from the multi-stage screening box 3. The coarse aggregate separated by the multi-stage screening box 3 enters the grinding box 2 through the feed port 201. One end of the material receiving component 506 is located below the feed port 201, and the other end of the material receiving component 506 is located at the discharge port 202. The end of the material receiving component 506 close to the feed port 201 is higher than the other end.

[0051] The grinding structure 6 is located above the vibration structure 5, and the grinding structure 6 includes an electric push rod 601 and a support plate 608. A connecting groove 1 603 is installed at one end of the support plate 608, and a connecting groove 3 605 is installed below the connecting groove 1 603. The fixed end of the electric push rod 601 is hingedly installed inside the connecting groove 1 603, and a hinged support rod 604 is installed inside the connecting groove 3 605. A connecting groove 2 602 is installed at the upper end of the support rod 604, and the telescopic end of the electric push rod 601 is hingedly connected to the connecting groove 2 602. The extension of the electric push rod 601 can drive the support rod 604 to rotate, a motor 1 606 is installed at one end of the support rod 604, and a grinding disc 607 is installed at the output end of the motor 1 606. The rotation of the support rod 604 can adjust the position of the motor 1 606 and the grinding disc 607.

[0052] When the coarse aggregate enters the receiving assembly 506 inside the grinding box 2, the coarse aggregate slides toward one end on the receiving assembly 506, the vibration of the vibration box 504 drives the receiving assembly 506 to vibrate, the coarse aggregate rolls under the vibration of the receiving assembly 506, and the grinding disc 607 grinds the surface of the coarse aggregate, and the cement powder remaining on the surface of the coarse aggregate is ground off and separated. The support plate 608 is installed in multiple groups along the direction of the receiving assembly 506, and the electric push rod 601, the connecting groove 2 602, the connecting groove 1 603, the support rod 604, the connecting groove 3 605, the motor 1 606, and the grinding disc 607 are installed along the support plate 6 Multiple groups are installed in the 08 direction, and most of the coarse aggregate can be ground. The material receiving component 506 includes a square frame 5061, and a filter screen 5062 is installed above the square frame 5061. The coarse aggregate rolls and moves on the filter screen 5062, and the ground cement powder leaks out of the square frame 5061 through the filter screen 5062. Baffles are provided at the four ends of the square frame 5061 to prevent the powder from scattering. A guide plate 203 is installed at the discharge port 202, and the guide plate 203 is located at the lower side of one end of the material receiving component 506. The coarse aggregate flows out of the grinding box 2 through the guide plate 203 and the discharge port 202 for collection.

[0053] Embodiment 2

[0054] Based on the description of the first embodiment, a spray structure 12 is installed on one side of the upper end of the cart 1, and the spray structure 12 includes a water tank 1201, a water pump 1202 is installed on the upper end of the water tank 1201, a connecting pipe 1203 is installed on the upper end of the water pump 1202, a branch pipe 1204 is installed on the other end of the connecting pipe 1203, and the other end of the branch pipe 1204 is installed inside the upper end of the jaw crusher 8. An atomizing nozzle 1205 is installed on the other end of the branch pipe 1204. When the waste concrete is poured into the upper end of the jaw crusher 8, the atomizing nozzle 1205 starts to spray atomized water droplets into the jaw crusher 8 to reduce dust diffusion and pollution of the environment. When the material passes through the heated screw conveyor 11, the material can be transported evenly. At the same time, there is heated steam on the inner wall of the heated screw conveyor 11, which can dry the material to avoid material adhesion and facilitate subsequent material screening.

[0055] One end of the water pump 1202 is connected to the support plate 608 inside the grinding box 2 through a pipeline. A water outlet is installed at the lower end of the support plate 608. When the grinding disc 607 grinds the surface of the coarse aggregate, water is sprayed out from the water outlet at the lower end of the support plate 608. The water flows through the filter screen 5062 and flows into the interior of the frame 5061 to mix with the cement powder. A hose 5063 is installed at the lower end of the frame 5062. The aggregate bin 13 is installed at the lower end of the grinding box 2. The lower end of the hose 5063 is connected to the aggregate bin 13. The cement powder mixed with water enters the aggregate bin 13 through the hose 5063 and is mixed with the powder flowing out through the discharge port 303 inside the aggregate bin 13 to be used as a cementitious material.

[0056] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A dust-free integrated crushing device for road construction raw materials, characterized in that ,include: Cart (1); A grinding box (2), wherein the grinding box (2) is arranged on one side of the upper end of the cart (1); A multi-stage screening box (3), wherein the multi-stage screening box (3) is arranged on the other side of the upper end of the trolley (1); A pretreatment component (4), the pretreatment component (4) is located above the grinding box (2) and the multi-stage screening box (3), the pretreatment component (4) comprises a jaw crusher (8), a deironing device (9) is provided at the lower end of the jaw crusher (8), a conveyor belt (10) is provided below the deironing device (9), a heating screw conveyor (11) is provided below the conveyor belt (10), and a spray structure (12) is provided on one side of the upper end of the cart (1); A vibration structure (5), the vibration structure (5) is arranged inside the grinding box (2), the vibration structure (5) comprises a side frame (501), the side frame (501) is symmetrically provided with two groups, a vertical guide rod (502) is arranged inside the side frame (501), a spring (503) is sleeved on the surface of the guide rod (502), a vibration box (504) is arranged between the two side frames (501), both ends of the vibration box (504) are sleeved on the guide rod (502), a support column (505) is arranged at the upper end of the vibration box (504), a material receiving assembly (506) is arranged at the upper end of the support column (505), side plates (508) are arranged at both ends of the two side frames (501), a slidable guide rod (509) is arranged inside the side plate (508), and a spring (510) is sleeved on the surface of the guide rod (509); A grinding structure (6), wherein the grinding structure (6) is located above the vibration structure (5), and the grinding structure (6) comprises an electric push rod (601) and a support plate (608), wherein one end of the support plate (608) is provided with a connection groove 1 (603), and a connection groove 3 (605) is provided below the connection groove 1 (603), wherein the fixed end of the electric push rod (601) is hingedly connected to the inside of the connection groove 1 (603), and the inside of the connection groove 3 (605) is provided with a support rod (604) hingedly connected, and the upper end of the support rod (604) is provided with a connection groove 2 (602), and the telescopic end of the electric push rod (601) is hingedly connected to the connection groove 2 (602), and one end of the support rod (604) is provided with a motor 1 (606), and the output end of the motor 1 (606) is provided with a grinding disc (607); A multi-stage screening structure (7), wherein the multi-stage screening structure (7) is arranged inside a multi-stage screening box (3), wherein the multi-stage screening structure (7) comprises a second motor (701), wherein the second motor (701) is located at the lower end of the multi-stage screening box (3), wherein a rotating shaft (702) is provided at the output end of the second motor (701), wherein a screening assembly (703) and a screen (704) are sleeved on the surface of the rotating shaft (702), wherein the rotating shaft (702) can rotate inside the screening assembly (703) and the screen (704), wherein a third motor is provided at the upper end of the rotating shaft (702), wherein a connecting rod (705) is provided at the output end of the third motor, wherein a sleeve (706) is provided on the surface of the connecting rod (705), wherein a plurality of groups of shifting rods ( 707), a shell (708) is provided above the screen (704), one end of the shell (708) is fixedly connected to the inside of the rotating shaft (702), one end of the shell (708) is provided with a motor (709), the output end of the motor (709) is provided with a rotating rod (710), the surface of the rotating rod (710) is sleeved with a plurality of cams (711), the lower end of the cam (711) is provided with a flapping plate (712), the flapping plate (712) is slidably connected to the lower end of the shell (708), short plates (713) are provided at both ends of the flapping plate (712), the lower end of the short plate (713) is provided with a spring telescopic rod (714), and the lower end of the spring telescopic rod (714) is fixedly connected to the lower end of the shell (708); The spray structure (12) comprises a water tank (1201), a water pump (1202) is provided at the upper end of the water tank (1201), a connecting pipe (1203) is provided at the upper end of the water pump (1202), a branch pipe (1204) is provided at the other end of the connecting pipe (1203), the other end of the branch pipe (1204) is connected to the upper end of the jaw crusher (8), an atomizing nozzle (1205) is provided at the other end of the branch pipe (1204), one end of the water pump (1202) is connected to the support plate (608) inside the grinding box (2) through a pipeline, and a water outlet is provided at the lower end of the support plate (608); A material collecting bin (13) is arranged at the lower end of the grinding box (2).

2. The dust-free integrated crushing device for road construction materials according to claim 1 is characterized in that: The front and rear ends of the vibration box (504) are provided with a rotating semi-circular disk (507); the spring 1 (503) is located between the side frame (501) and the vibration box (504); one end of the guide rod 2 (509) is fixedly connected to the side frame (501); the other end of the guide rod 2 (509) is provided with a limit plate (511); the spring 2 (510) is located between the side frame (501) and the side plate (508); a motor 5 is provided inside the vibration box (504); the material receiving assembly (506) comprises a square frame (5061); a filter screen (5062) is provided above the square frame (5061); a hose (5063) is provided at the lower end of the square frame (5061); and the lower end of the hose (5063) is connected to the material collecting bin (13).

3. The dust-free integrated crushing device for road construction materials according to claim 1 is characterized in that: The support plate (608) is provided with multiple groups along the direction of the material receiving assembly (506), and the electric push rod (601), the second connecting groove (602), the first connecting groove (603), the support rod (604), the third connecting groove (605), the motor one (606), and the grinding disc (607) are provided with multiple groups along the direction of the support plate (608).

4. The dust-free integrated crushing device for road construction materials according to claim 1 is characterized in that: The screening assembly (703) comprises a cross support member (7031) and a plurality of groups of circular rings (7032); the cross support member (7031) is fixedly connected to the inside of the multi-stage screening box (3); the rotating shaft (702) is rotatably connected to the center of the cross support member (7031); the plurality of groups of circular rings (7032) are connected to the cross support member (7031) at intervals; and the plurality of groups of shifting rods (707) are located in the gaps between the plurality of groups of circular rings (7032).

5. The dust-free integrated crushing device for road construction materials according to claim 1 is characterized in that: A feed port (201) is provided at the upper end of the grinding box (2) close to the multi-stage screening box (3), and a discharge port (202) is provided at the end of the grinding box (2) away from the multi-stage screening box (3). A guide plate (203) is provided at the feed port (201) inside the grinding box (2), and the guide plate (203) is located at the lower side of one end of a material receiving component (506), and the end of the material receiving component (506) close to the guide plate (203) is lower than the other end of the material receiving component (506).

6. The dust-free integrated crushing device for road construction materials according to claim 5 is characterized by: The multi-stage screening box (3) is provided with a second discharge port (301) and a fourth discharge port (303) at one end close to the grinding box (2), one end of the second discharge port (301) is located on the upper side of the screening assembly (703), and the other end is located on the upper side of the feed port (201), the fourth discharge port (303) is connected to the aggregate bin (13), the fourth discharge port (303) is located on the upper side of the bottom of the multi-stage screening box (3), and the multi-stage screening box (3) is provided with a third discharge port (302) at one end away from the grinding box (2), and the third discharge port (302) is located on the upper side of the screen (704).

7. The dust-free integrated crushing device for road construction materials according to claim 1 is characterized by: The pretreatment component (4) also includes a box (401), the iron remover (9) and the conveyor belt (10) are located inside the box (401), a control box (402) for controlling the iron remover (9) and the conveyor belt (10) is provided on one side of the box (401), a control device (801) for controlling the jaw crusher (8) is provided at the upper end of the control box (402), a guide plate 2 (403) is provided inside the box (401), the guide plate 2 (403) is located between the iron remover (9) and one end of the conveyor belt (10), a material receiving frame (404) is provided at the lower end of the guide plate 2 (403), the lower end of the material receiving frame (404) is connected to the feed of the heating type screw conveyor (11), and the discharge of the heating type screw conveyor (11) is connected to the multi-stage screening box (3).

8. The dust-free integrated crushing device for road construction materials according to claim 4 is characterized in that: The circular ring (7032) and the screen (704) are both conical structures, and the bottom of the multi-stage screening box (3) is inclined toward one end.

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