A crushing and dust removal device for construction solid waste

Abstract

The application discloses a kind of crushing dust removal equipment for building solid waste, it is related to the field of construction, including dust removal shell, drive box, N-shaped filtrate tank and dust removal mechanism, dust removal mechanism is composed of dust fall subassembly, power component and gas-liquid separation component, dust fall subassembly is located in dust removal shell and is installed on the shaft, dust fall subassembly is used to disturb dust-containing gas and diffuse atomized droplet, dust particle collides with atomized droplet and forms dust-containing droplet, gas-liquid separation component is arranged between two baffle plates, for changing the direction of airflow and separating droplet in gas, the present application adopts multiple staggered distribution's oblique guide vane, simultaneously utilize center liquid channel and shunt pipe to transport high-pressure liquid to atomizing nozzle, so that droplet is evenly diffused under centrifugal force and airflow disturbance, greatly increase gas-liquid contact area and collision probability, and airflow disturbance can respond to the fluctuation of dust-containing gas amount in crushing process, ensure dust fall efficiency.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the technical field of building construction, in particular to a crushing and dust removal equipment for building solid waste. BACKGROUND

[0002] With the acceleration of urbanization and the expansion of old building demolition, the resource utilization of building solid waste is the core path to alleviate the pressure of garbage and resource shortage. The primary step is crushing treatment, which breaks large solid waste into small particles for subsequent sorting and recycling. However, a large amount of dust-containing gas is generated during crushing, so dust removal is required during crushing.

[0003] A dust removal device for separating and crushing construction waste described in the prior art comprises a shell, a spraying assembly is fixedly assembled at the top of the shell, an air inlet pipe is fixedly communicated on one side of the shell, an air outlet pipe is fixedly communicated on the other side of the shell, an exhaust fan is fixedly assembled on the inner wall of the air outlet pipe, a groove is formed on the outer wall of the shell, a fixed frame is fixedly assembled on the top of the groove, a circular groove is formed on the outer wall of the fixed frame, a spring is fixedly assembled on the inner wall of the circular groove, a connecting block is fixedly assembled on the end of the spring away from the circular groove, a clamping block is fixedly assembled on the side of the connecting block away from the spring, and a filter plate is clamped on the outer wall of the clamping block.

[0004] The above technology is beneficial to filtering and collecting the wastewater generated by spraying dust removal, preventing the accumulation of wastewater inside the device and further producing bacteria. However, the conventional spraying dust removal method has uneven liquid droplet distribution, obvious contact dead angles, and some dust-containing gas flows with the airflow without fully colliding with the liquid droplets, resulting in limited dust removal efficiency. Especially when a large amount of dust is generated during crushing, it is difficult to achieve comprehensive capture of dust particles. Moreover, there is a lack of active disturbance structure for the airflow. When the amount of dust-containing gas fluctuates during the crushing process (such as the increase or decrease of material input), the airflow velocity and direction are unstable, further reducing the gas-liquid contact probability and making it difficult to ensure sustained and stable dust removal effect. SUMMARY

[0005] Therefore, the present application aims to provide a crushing and dust removal equipment for building solid waste to solve the technical problems in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] The utility model provides a kind of crushing dust removal equipment for building solid waste, including dust removal shell, drive box, N-shaped filtrate tank and dust removal mechanism, the recess of N-shaped filtrate tank is sleeved on drive box, the drive box is located at the center below dust removal shell and is fixedly connected by screw, the inner bottom wall of dust removal shell is fixed with guide inclined plate, the outer wall of dust removal shell is respectively communicated with air duct and liquid discharge pipe on both sides, the center of dust removal shell is equipped with rotating shaft, the bottom end of rotating shaft penetrates dust removal shell and inserts drive box, the inside of rotating shaft is equipped with central liquid channel, the bottom end of rotating shaft is equipped with fixed plate, the center of fixed plate is rotatably installed with adapter, the movable end of adapter is communicated with the central liquid channel of rotating shaft, the fixed end of adapter is connected with external high-pressure water tank by high-pressure hose;

[0008] The dust removal mechanism is composed of a dust reduction assembly, a power assembly, and a gas-liquid separation assembly. The dust reduction assembly is located inside the dust removal shell and mounted on the rotating shaft. It is used to disturb dust-containing gas and diffuse atomized droplets. Dust particles collide with atomized droplets to form dust-containing droplets. The power assembly is located inside the drive box and linked to the driven shaft of the crushing equipment through a shaft coupling to control the rotation of the rotating shaft. The gas-liquid separation assembly is arranged between two baffles to change the direction of the airflow and separate the droplets in the gas.

[0009] Specifically, the dust reduction assembly includes multiple collars, and each collar is uniformly sleeved on the rotating shaft. The outer wall of each collar is uniformly fixed with eight guide vanes in the circumferential direction. Each guide vane is inclined. The guide vanes on each collar are distributed in a staggered manner in the axial projection. A liquid distribution cavity is formed in each collar. The liquid distribution cavity is communicated with the central liquid channel through a guide hole. A flow channel is formed in each guide vane. Each flow channel is communicated with the liquid distribution cavity through a shunt pipe inserted into the cavity wall. The inclined downward surface of each guide vane is uniformly provided with a plurality of atomizing nozzles, and the atomizing nozzles are communicated with the flow channel.

[0010] Specifically, the inner circle of each collar is fixed with an insertion rod. A clamping groove is formed in the outer wall of the rotating shaft in the axial direction. The insertion rod is inserted into the clamping groove. The top end of the rotating shaft is rotatably connected with the inner top wall of the dust removal shell. The root of each guide vane is consistent with the axial height of the surface of the collar.

[0011] Specifically, the inner wall of the dust removal shell is fixed with an annular plate below each layer of guide vanes. The end surface of each guide vane is embedded with a ball. Each ball is in rolling contact with the upper surface of the annular plate.

[0012] The power assembly specifically comprises a horizontal bevel gear and a vertical bevel gear, the horizontal bevel gear is fixedly sleeved on the bottom outer wall of the rotating shaft, one side of the fixed plate away from the N-shaped filtrate tank is rotationally installed with a horizontal transmission shaft, the vertical bevel gear is fixedly sleeved on the transmission shaft and is in meshing connection with the tooth surface of the horizontal bevel gear, and the end of the transmission shaft extends to the outside through the driving box and is connected with a shaft coupling.

[0013] The N-shaped filtrate tank is provided with a perforation at the high-pressure hose, the high-pressure hose penetrates through the N-shaped filtrate tank and passes through the perforation, the inner top of the N-shaped filtrate tank is provided with a filter plate through screws, and the filter plate is placed with a filter sponge.

[0014] The gas-liquid separation assembly specifically comprises two baffle channels, each baffle channel is composed of two Z-shaped baffles arranged in parallel and two baffles, each Z-shaped baffle is composed of a first baffle, a horizontal plate and a second baffle, the first baffle is inclined downward and has an angle of 30° with the horizontal direction, the second baffle is inclined upward and has an angle of 30° with the horizontal direction, the first baffle and the second baffle are integrally connected with the horizontal plate, the two baffle channels are connected through connecting blocks, the two ends of the two connecting blocks are fixedly connected with the two baffles, the two ends of each Z-shaped baffle are sealingly fixedly connected with the baffles, and the top wall of the dust removal shell is provided with a flow guide hole at the lower baffle channel.

[0015] The surface of each Z-shaped baffle is sprayed with a polytetrafluoroethylene coating, the top end of the dust removal shell is fixed with a fixed block on both sides of the flow guide hole, the two ends of the two fixed blocks are fixedly connected with the two baffles, two converging grooves are formed in the two fixed blocks, the two converging grooves are located below the second baffles of the two Z-shaped baffles respectively, the groove bottoms of the two converging grooves are inclined to both sides, square through holes are formed in the two baffles at the fixed blocks, flow guide inclined plates are fixed at the converging grooves at the two ends of the two fixed blocks, and the bottom surfaces of the flow guide inclined plates are lapped on the square through holes.

[0016] The outer walls of the two baffles are fixed with liquid guide pipes at the square through holes, and the bottom ends of the liquid guide pipes penetrate through the top wall of the N-shaped filtrate tank.

[0017] The top of each baffle is fixed with a square exhaust pipe, the bottom of the square exhaust pipe is in communication with the top of the upper baffle channel, and a metal filter screen is fixed in the square exhaust pipe.

[0018] In summary, the present application has the following beneficial effects: the dust reduction assembly adopts multiple layers of staggered distribution of inclined guide vanes, cooperates with the rotating shaft to form a spiral airflow field, simultaneously uses the central liquid channel and the shunt pipe to deliver high-pressure liquid to the atomizing nozzle, so that the liquid droplets are uniformly dispersed under the centrifugal force and airflow disturbance, greatly increases the gas-liquid contact area and collision probability, effectively solves the contact dead angle problem of traditional spraying, and the airflow disturbance can cope with the fluctuation of dust-containing gas volume in the crushing process, ensuring the dust reduction efficiency;

[0019] Meanwhile, the gas-liquid separation assembly forms a turning channel through the Z-shaped baffle, efficiently separates dust-containing droplets by using the inertia difference, reduces droplet adhesion by using the polytetrafluoroethylene coating, significantly improves the dust capture efficiency and gas purification effect, and ensures that the exhaust gas meets the environmental protection standard;

[0020] And the bevel gear transmission is linked with the driven shaft of the crushing device, so that synchronous rotation of the rotating shaft can be realized without additional driving source, reducing the energy consumption and installation complexity of the device. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a front axial structure diagram of the device of the present application;

[0022] Figure 2 It is a front axial structure diagram of the dust removal shell of the present application;

[0023] Figure 3 It is a front axial structure diagram of the dust removal shell of the present application;

[0024] Figure 4 It is a front axial structure diagram of the dust removal shell of the present application;

[0025] Figure 5 It is a structure diagram of the dust reduction assembly of the present application;

[0026] Figure 6 It is a structure diagram of the dust reduction assembly of the present application;

[0027] Figure 7 It is a Figure 6 It is an enlarged view of A in the present application;

[0028] Figure 8 It is a structure diagram of the N-shaped filter liquid tank of the present application;

[0029] Figure 9 It is a structure diagram of the gas-liquid separation assembly of the present application.

[0030] BRIEF DESCRIPTION OF DRAWINGS: 1, dust removal shell; 101, guide inclined plate; 102, air guide pipe; 103, rotating shaft; 1031, clamping groove; 104, liquid discharge pipe; 105, annular plate; 2, drive box; 201, fixed plate; 202, high-pressure hose; 3, N-shaped filtrate tank; 301, perforated plate; 302, filter plate; 303, filter sponge; 4, baffle; 401, square through hole; 402, square exhaust pipe; 4021, metal filter screen; 403, liquid guide pipe; 5, dust removal mechanism; 6, dust removal assembly; 601, collar; 6011, liquid distribution cavity; 602, plug-in rod; 603, guide vane; 6031, flow channel; 604, shunt pipe; 605, atomizing nozzle; 606, ball; 7, power assembly; 701, transverse bevel gear; 702, vertical bevel gear; 703, transmission shaft; 8, gas-liquid separation assembly; 801, baffle channel; 8011, Z-shaped baffle plate; 8012, first baffle; 8013, horizontal plate; 8014, second baffle; 802, connecting block; 803, fixed block; 8031, converging groove; 8032, guide inclined plate. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0032] The embodiments of the present application will be described below according to the overall structure of the present application.

[0033] It should be noted that the dust removal equipment needs to be used in conjunction with a jaw crusher, the air guide pipe 102 is connected with the exhaust passage of the crushing equipment through a flange, a suction pump is connected in series during the connection process, the dust-containing gas generated during the crushing process is forcedly sucked into the dust removal shell 1, and a vertical guide pipe (as shown in Figure 4 ) is installed on the outer wall of the end portion of the shell, guiding the upward flow of the entering dust-containing gas.

[0034] The liquid discharge pipe 104 is divided into two paths through a three-way valve, one path is connected with the inlet of an external circulating filter tank (equipped with a 100-mesh filter screen and an activated carbon filter layer), and the other path is connected with a wastewater treatment tank, the wastewater treatment tank path is closed during normal operation, the dust-containing liquid flows into the circulating filter tank through the liquid discharge pipe 104, is purified, and is then pumped into the high-pressure water tank again, realizing liquid recycling, and only during periodic cleaning, the wastewater treatment tank path is opened to discharge waste residues;

[0035] The inner bottom of the N-shaped filtrate tank 3 is connected with the outside through a pipeline, and a manual valve is installed on the pipeline, which is used for discharging the liquid temporarily stored in the inside.

[0036] In this embodiment, please refer to Figure 1 ​Figure 5 The utility model provides a kind of crushing dust removal equipment for building solid waste, including dust removal shell 1, drive box 2, N-shaped filtrate tank 3 and dust removal mechanism 5, the groove of N-shaped filtrate tank 3 is sleeved on drive box 2, drive box 2 is located at the center below dust removal shell 1 and is fixedly connected by screw, the inner bottom wall of dust removal shell 1 is fixed with guide inclined plate 101, the outer wall of dust removal shell 1 two sides are respectively communicated with gas guide pipe 102 and liquid discharge pipe 104, the center of dust removal shell 1 is equipped with rotating shaft 103, the bottom end of rotating shaft 103 passes out dust removal shell 1 and inserts drive box 2, the inside of rotating shaft 103 is equipped with central liquid channel, the bottom end of rotating shaft 103 is equipped with fixed plate 201, the center of fixed plate 201 is rotatably installed with adapter, the movable end of adapter is communicated with the central liquid channel of rotating shaft 103, the fixed end of adapter is connected with external high-pressure water tank by high-pressure hose 202;

[0037] Dust removal mechanism 5 is composed of dust fall subassembly 6, power component 7 and gas-liquid separation component 8, power component 7 is located in drive box 2 and is linked with the driven shaft of crushing equipment by shaft coupling, power component 7 includes horizontal bevel gear 701 and vertical bevel gear 702, horizontal bevel gear 701 is fixedly sleeved on the bottom outer wall of rotating shaft 103, the side, away from N-shaped filtrate tank 3, of fixed plate 201 is rotatably installed with horizontal transmission shaft 703, vertical bevel gear 702 is fixedly sleeved on transmission shaft 703 and the tooth surface is engaged with the tooth surface of horizontal bevel gear 701, the end of transmission shaft 703 extends to external and is connected with shaft coupling by penetrating drive box 2, dust fall subassembly 6 is located in dust removal shell 1 and is installed on rotating shaft 103, dust fall subassembly 6 is used to disturb dust-containing gas and diffuse atomized droplet, dust particle and atomized droplet collide to form dust-containing droplet, for controlling the rotation of rotating shaft 103, gas-liquid separation component 8 is arranged between two baffles 4, for changing airflow direction and separating the droplet in gas.

[0038] When crushing main machine crushes building solid waste (such as concrete block, brick and tile crushed material), dust-containing gas generated under the negative pressure of suction pump enters dust removal shell 1 through crushing main machine exhaust passage and gas guide pipe 102, dust-containing gas first contacts guide pipe and flows upwards, at this time driven shaft drives transmission shaft 703 to rotate (rotating speed is synchronous with crushing main machine), vertical bevel gear 702 on transmission shaft 703 engages transmission with horizontal bevel gear 701, horizontal bevel gear 701 drives rotating shaft 103 to rotate around its axis, when rotating shaft 103 rotates, it drives installed dust fall subassembly 6 to rotate synchronously, and the high-pressure liquid of external high-pressure water tank enters adapter through high-pressure hose 202, flows into the central liquid channel of rotating shaft 103 through the movable end of adapter, liquid flows in the central liquid channel in axial direction, enters dust fall subassembly 6 and sprays, to form atomized droplet group;

[0039] When the dust-containing gas rises to the area of the dust removal assembly 6, it is disturbed by the rotating guide vanes 603 to form a spiral airflow, and the atomized droplet group sprayed by the atomizing nozzle 605 intersects the spiral airflow in the opposite direction. Due to the fact that the axial projection of the guide vanes 603 is distributed in a staggered manner (the projection of the upper vanes is located in the center of the gap between the lower vanes), the droplets form a three-dimensional atomization zone in the dust removal shell 1, and the gas-liquid contact area is greatly improved. The dust particles such as cement particles and stone debris in the dust-containing gas collide and adhere with the atomized droplets under the disturbance of the airflow, forming dust-containing droplets. Part of the heavier droplets fall onto the guide inclined plate 101 and flow along the inclined surface to the liquid discharge pipe 104, while the remaining lighter droplets continue to rise with the gas and enter the lower baffle passage 801 in the gas-liquid separation assembly 8 through the guide hole. The gas is smoothly diverted due to its small inertia, and the dust-containing droplets impact the surface of the baffle due to their large inertia, forming a liquid film that flows down the wall and flows into the converging groove 8031 of the lower fixed block 803. The dust-containing liquid film in the converging groove 8031 flows along the inclined direction of the groove bottom, is guided by the guide inclined plate 8032 to the square hole 401 of the baffle 4, and then flows into the N-shaped filter tank 3 through the liquid guide pipe 403 for filtration treatment.

[0040] The purified gas after secondary separation enters the square exhaust pipe 402, and the metal filter screen 4021 (stainless steel screen) inside the square exhaust pipe 402 intercepts the remaining small droplets (particle size ≤5μm), and is finally discharged from the exhaust port at the top end of the square exhaust pipe 402.

[0041] Therefore, by adopting the multi-layer staggered distribution of inclined guide vanes 603, cooperating with the rotation of the rotating shaft 103 to form a spiral airflow field, and making the droplets uniformly diffuse under the centrifugal force and airflow disturbance, the gas-liquid contact area and collision probability are greatly increased, effectively solving the contact dead angle problem existing in traditional spraying. The airflow disturbance can cope with the fluctuation of the dust-containing gas during the crushing process, ensuring the dust removal efficiency, and the difference in inertia efficiently separates the dust-containing droplets, reduces the adhesion of the droplets by combining with the polytetrafluoroethylene coating, improves the dust capture efficiency and gas purification effect, ensures that the discharged gas meets the environmental protection standard, and the entire device can realize synchronous rotation of the rotating shaft without additional driving source, reducing the energy consumption and installation complexity of the device.

[0042] Please refer to Figure 5 - Figure 7As shown, the dust falling assembly 6 comprises a plurality of collars 601 uniformly sleeved on the rotating shaft 103, the outer wall of each collar 601 is uniformly fixed with eight guide vanes 603 in the circumferential direction, each guide vane 603 is arranged obliquely, the guide vanes 603 on each collar 601 are distributed in a staggered manner in the axial projection, a liquid distribution cavity 6011 is formed in each collar 601, the liquid distribution cavity 6011 is communicated with the central liquid channel through a guide hole, a flow channel 6031 is formed in each guide vane 603, each flow channel 6031 is communicated with the liquid distribution cavity 6011 through a shunt pipe 604 inserted in the cavity wall, and a plurality of atomizing nozzles 605 are uniformly installed on the obliquely downward surface of each guide vane 603, and the plurality of atomizing nozzles 605 are communicated with the flow channel 6031;

[0043] The inner circle of the plurality of collars 601 is fixed with an insertion rod 602, the outer wall of the rotating shaft 103 is provided with a clamping groove 1031 in the axial direction, the insertion rod 602 is inserted into the clamping groove 1031, the top end of the rotating shaft 103 is rotationally connected with the inner top wall of the dust removal shell 1, the root of each guide vane 603 is consistent with the axial height of the surface of the collar 601, and the inner wall of the dust removal shell 1 is fixed with an annular plate 105 below each layer of guide vanes 603, and the end surface of each guide vane 603 is embedded with a ball bearing 606, and each ball bearing 606 is in rolling contact with the upper surface of the annular plate 105.

[0044] When the rotating shaft 103 rotates, the plurality of collars 601 are driven to rotate synchronously through the cooperation of the clamping groove 1031 and the insertion rod 602, the collar 601 does not slide relative to the rotating shaft 103, and the eight guide vanes 603 on the outer wall of the collar 601 rotate with the collar, and because the guide vanes 603 are arranged obliquely, the air flow spirally rises along the oblique direction of the vanes during rotation (this spirally rising air flow movement is similar to the air flow rising along the rotating direction of the propeller under the action of the propeller), so that the dust-containing gas forms a stable spiral air flow field and plays a disturbance role on the air flow, and at this time, the liquid entering the central liquid channel enters the liquid distribution cavity 6011 in each collar 601 through the guide hole, the high-pressure liquid in the liquid distribution cavity 6011 is uniformly distributed to the flow channel 6031 of each guide vane 603 through the shunt pipe 604, and finally sprayed out from the atomizing nozzles 605 on the obliquely downward surface of the guide vane 603 to form an atomized droplet group;

[0045] Notably, the ball bearing 606 on the end surface of the guide vane 603 is in rolling contact with the upper surface of the annular plate 105, which provides radial support for the guide vane 603 to avoid deformation of the vane due to centrifugal force during rotation, and on the other hand, rolling friction is used to replace sliding friction to reduce power loss and component wear.

[0046] Please refer to Figure 3 , Figure 8 andFigure 9 As shown, the gas-liquid separation assembly 8 comprises two baffle channels 801, each of which is composed of two Z-shaped baffles 8011 arranged in parallel and matched with two baffle plates 4, each Z-shaped baffle 8011 is composed of a first baffle plate 8012, a horizontal plate 8013 and a second baffle plate 8014, the first baffle plate 8012 is inclined downward and forms an angle of 30° with the horizontal direction, the second baffle plate 8014 is inclined upward and forms an angle of 30° with the horizontal direction, the first baffle plate 8012 and the second baffle plate 8014 are integrally connected with the horizontal plate 8013, the two baffle channels 801 are connected through a connecting block 802, the two ends of the two connecting blocks 802 are fixedly connected with the two baffle plates 4, the two ends of each Z-shaped baffle 8011 are sealingly fixedly connected with the baffle plate 4, the top wall of the dust removal shell 1 is provided with a flow guide hole at the lower baffle channel 801, the top of the two baffle plates 4 is fixedly provided with a square exhaust pipe 402, the bottom of the square exhaust pipe 402 is connected with the top of the upper baffle channel 801, and a metal filter screen 4021 is fixedly arranged in the square exhaust pipe 402 by screws;

[0047] The surface of each Z-shaped baffle 8011 is sprayed with a polytetrafluoroethylene coating, the top end of the dust removal shell 1 is fixedly provided with a fixed block 803 on both sides of the flow guide hole, the two ends of the two fixed blocks 803 are fixedly connected with the two baffle plates 4, the two fixed blocks 803 are provided with converging grooves 8031, the converging grooves 8031 are located below the second baffle plate 8014 of the two Z-shaped baffles 8011, respectively, the groove bottoms of the two converging grooves 8031 are inclined to both sides, the two baffle plates 4 are provided with square through holes 401 at the positions of the fixed blocks 803, the two ends of the two fixed blocks 803 are fixedly provided with flow guide inclined plates 8032 at the positions of the converging grooves 8031, the bottom surface of each flow guide inclined plate 8032 is overlapped on the square through hole 401, and the outer walls of the two baffle plates 4 are fixedly provided with liquid guide pipes 403 at the positions of the square through holes 401.

[0048] The N-shaped filter liquid tank 3 is provided with a perforation 301 at the position of the high-pressure hose 202, the high-pressure hose 202 penetrates out of the N-shaped filter liquid tank 3 and passes through the perforation 301, a filter plate 302 is installed on the inner top of the N-shaped filter liquid tank 3 by screws, and a filter sponge 303 is placed above the filter plate 302, the filter sponge 303 is made of hydrophilic polyurethane material and has a porosity of 80%, which can preliminarily filter large particles of dust in the recovered liquid, and the outer wall of the N-shaped filter liquid tank 3 away from the drive box 2 can be opened to facilitate regular replacement of the filter sponge 303.

[0049] When the gas-liquid mixture (dust-containing gas and part of the atomized liquid droplets) rises to the top of the dust removal shell 1, it enters the baffle channel 801 below the gas-liquid separation assembly 8 through the flow guide hole, and the gas-liquid mixture flows upwards along the first baffle 8012, and is forced to flow horizontally at the horizontal plate 8013, the gas can smoothly turn due to small inertia, and the dust-containing liquid droplets impact the surface of the horizontal plate 8013 due to large inertia, forming a liquid film flowing downward along the plate wall, then the gas blows to the second baffle 8014 of another parallel Z-shaped baffle plate 8011, and continues to move upwards along the second baffle 8014, while the small liquid droplets remaining in the gas again impact the second baffle 8014 due to inertia, forming a liquid film moving downward along the plate surface, at this time, the gas after one-stage separation enters another baffle channel 801 above for two-stage separation, and the separated gas enters the square exhaust pipe 402 and is intercepted by the metal filter screen 4021 to remove the remaining small liquid droplets, and is finally discharged.

[0050] Wherein the liquid film flowing down is collected into the corresponding collecting groove 8031 below, and the dust-containing liquid in the collecting groove 8031 flows along the inclined direction of the groove bottom, is guided to the square through hole 401 through the flow guide inclined plate 8032, and then flows into the N-shaped filtrate tank 3 through the liquid guide pipe 403, and then contacts the filter sponge 303 to intercept impurities, and the liquid penetrates into the filter plate 302 (100-mesh stainless steel filter screen) after passing through the filter sponge 303 to further filter impurities, and the purified liquid is temporarily stored at the inner bottom of the N-shaped filtrate tank 3.

[0051] The working principle of the present application is as follows:

[0052] When the crushing main machine crushes building solid waste (such as concrete blocks and brick fragments), the dust-containing gas generated under the negative pressure of the air pump enters the dust removal shell 1 through the exhaust passage of the crushing main machine and the air guide pipe 102, the dust-containing gas first contacts the guide pipe and flows upwards, the vertical bevel gear 702 on the transmission shaft 703 meshes with the horizontal bevel gear 701 to drive the horizontal bevel gear 701 to rotate around its own axis, when the rotating shaft 103 rotates, the plurality of sleeve rings 601 are synchronously rotated through the cooperation of the clamping slot 1031 and the plug-in rod 602, the eight flow guide vanes 603 on the outer wall of the sleeve ring rotate with the sleeve ring, and at this time, the high-pressure liquid in the external high-pressure liquid tank enters the adapter through the high-pressure hose 202, flows into the central liquid channel of the rotating shaft 103 through the movable end of the adapter, and flows axially in the central liquid channel, the liquid in the central liquid channel enters the liquid distribution cavity 6011 in each sleeve ring 601 through the guide hole, the high-pressure liquid in the liquid distribution cavity 6011 is uniformly distributed to the flow channel 6031 of each flow guide vane 603 through the shunt pipe 604, and finally sprayed from the atomizing nozzle 605 on the inclined downward surface of the flow guide vane 603, forming an atomized liquid droplet group.

[0053] When the dust-containing gas rises to the area of the dust-settling assembly 6, the gas flow spirally rises along the inclined direction of the guide vanes 603 due to the inclined arrangement of the guide vanes 603 during rotation, so that the dust-containing gas forms a stable spiral gas flow field and plays a role of disturbing the gas flow. Meanwhile, the atomized liquid droplets sprayed by the atomizing nozzle 605 cross the spiral gas flow in a reverse direction. Due to the staggered distribution of the guide vanes 603 along the axial projection, the liquid droplets form a three-dimensional atomizing area in the dust-settling shell 1, and the gas-liquid contact area is greatly improved. The dust particles such as cement particles and stone debris in the dust-containing gas fully collide and adhere to the atomized liquid droplets under the disturbance of the gas flow, to form dust-containing liquid droplets. Part of the relatively heavy liquid droplets falls onto the guide inclined plate 101 and flows along the inclined surface to the liquid discharge pipe 104, while the remaining part of the relatively light liquid droplets continues to rise with the gas;

[0054] When the gas-liquid mixture (dust-containing gas and part of the atomized liquid droplets) rises to the top of the dust-settling shell 1, it enters the baffle passage 801 below the gas-liquid separation assembly 8 through the guide hole. The gas-liquid mixture flows upward along the first baffle plate 8012, and is forced to flow horizontally at the horizontal plate 8013. The gas can smoothly turn due to small inertia, and the dust-containing liquid droplets impact the surface of the horizontal plate 8013 due to large inertia, forming a liquid film flowing downward along the plate wall. Then the gas blows to the second baffle plate 8014 of another parallel Z-shaped baffle plate 8011, and continues to move upward along the second baffle plate 8014. At this time, the remaining small liquid droplets in the gas impact the second baffle plate 8014 again due to inertia, forming a liquid film that moves downward along the plate surface. At this time, the gas after one-stage separation enters another baffle passage 801 above for two-stage separation. The separated gas enters the square exhaust pipe 402 and passes through the metal filter screen 4021 to intercept the remaining small liquid droplets, and is finally discharged.

[0055] The liquid film flowing down is collected into the corresponding collection groove 8031 below. The dust-containing liquid in the collection groove 8031 flows along the inclined direction of the groove bottom, is guided to the square through hole 401 by the guide inclined plate 8032, and then flows into the N-shaped filter liquid tank 3 through the liquid guide pipe 403. Then the liquid contacts the filter sponge 303 to intercept impurities. After penetrating through the filter sponge 303, the liquid penetrates into the filter plate 302 to further filter impurities. The purified liquid is temporarily stored at the inner bottom of the N-shaped filter liquid tank 3.

[0056] Although the embodiments of the present application have been shown and described, the specific embodiments are merely illustrative of the present application, and are not intended to limit the present application. The specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the present specification, as long as they are within the scope of the present application.

Claims

1. A crushing and dust removal device for construction solid waste, comprising a dust removal housing (1), a drive box (2), an N-shaped filtrate tank (3), and a dust removal mechanism (5), wherein the groove of the N-shaped filtrate tank (3) is fitted onto the drive box (2), the drive box (2) is located at the center below the dust removal housing (1) and is fixedly connected by screws, a guide inclined plate (101) is fixed to the inner bottom wall of the dust removal housing (1), and air guide pipes (102) and drain pipes (104) are respectively connected to the two sides of the outer wall of the dust removal housing (1), characterized in that, The dust collector housing (1) has a rotating shaft (103) at its center. The bottom end of the rotating shaft (103) extends out of the dust collector housing (1) and is inserted into the drive box (2). The rotating shaft (103) has a central liquid channel inside. The bottom end of the rotating shaft (103) has a fixing plate (201). An adapter is rotatably installed at the center of the fixing plate (201). The movable end of the adapter is connected to the central liquid channel of the rotating shaft (103). The fixed end of the adapter is connected to an external high-pressure water tank through a high-pressure hose (202). The dust removal mechanism (5) consists of a dust suppression component (6), a power component (7), and a gas-liquid separation component (8). The dust suppression component (6) is located inside the dust removal housing (1) and installed on the rotating shaft (103). The dust suppression component (6) is used to disturb the dust-laden gas and diffuse atomized droplets. Dust particles collide with the atomized droplets to form dust-laden droplets. The power component (7) is located inside the drive box (2) and is linked to the driven shaft of the crushing equipment through a coupling. It is used to control the rotation of the rotating shaft (103). The gas-liquid separation component (8) is set between two baffles (4) and is used to change the airflow direction to separate the droplets in the gas. The dust suppression assembly (6) includes multiple collars (601), which are evenly fitted onto the rotating shaft (103). Each collar (601) has eight guide vanes (603) evenly fixed to its outer wall along the circumferential direction. Each guide vane (603) is inclined, and the guide vanes (603) on each collar (601) are staggered along the axial projection. Each collar (601) has a liquid distribution chamber (6011) connected to the central liquid channel via a guide hole. Each guide vane (603) has a flow channel (6031). Each of the flow channels (6031) is connected to the liquid distribution chamber (6011) through a diversion pipe (604) inserted into the cavity wall. Each of the guide vanes (603) has a number of atomizing nozzles (605) evenly installed on its downward inclined surface. Each of the atomizing nozzles (605) is connected to the flow channel (6031). The inner wall of the dust removal housing (1) is fixed with an annular plate (105) below the guide vanes (603) of each layer. Each guide vane (603) has a ball (606) embedded in the lower surface of its end. Each ball (606) is in rolling contact with the upper surface of the annular plate (105). The gas-liquid separation component (8) includes two baffle channels (801). Each baffle channel (801) is composed of two parallel Z-shaped baffles (8011) and two baffles (4). Each Z-shaped baffle (8011) is composed of a first baffle (8012), a horizontal plate (8013), and a second baffle (8014). The first baffle (8012) is inclined downwards at an angle of 30° to the horizontal direction, and the second baffle (8014) is inclined upwards at an angle of 30° to the horizontal direction. The directional angle is 30°. The first baffle (8012) and the second baffle (8014) are integrally connected to the horizontal plate (8013). The two baffle channels (801) are connected by a connecting block (802). Both ends of the two connecting blocks (802) are fixedly connected to the two baffles (4). Both ends of each Z-shaped baffle (8011) are sealed and fixedly connected to the baffle (4). The top wall of the dust collector housing (1) is provided with a guide hole at the baffle channel (801) below.

2. The crushing and dust removal equipment for construction solid waste according to claim 1, characterized in that, The inner rings of multiple collars (601) are fixed with plug rods (602). The outer wall of the rotating shaft (103) is provided with a slot (1031) along the axial direction. The plug rod (602) is inserted into the slot (1031). The top of the rotating shaft (103) is rotatably connected to the inner top wall of the dust collector housing (1). The root of each guide vane (603) is at the same axial height as the surface of the collar (601).

3. The crushing and dust removal equipment for construction solid waste according to claim 1, characterized in that, The power assembly (7) includes a horizontal bevel gear (701) and a vertical bevel gear (702). The horizontal bevel gear (701) is fixedly sleeved on the bottom outer wall of the rotating shaft (103). A horizontal drive shaft (703) is rotatably mounted on the side of the fixed plate (201) away from the N-shaped filtrate tank (3). The vertical bevel gear (702) is fixedly sleeved on the drive shaft (703) and its tooth surface meshes with the tooth surface of the horizontal bevel gear (701). The end of the drive shaft (703) extends through the drive box (2) to the outside and is connected to a coupling.

4. The crushing and dust removal equipment for construction solid waste according to claim 1, characterized in that, The N-shaped filtrate box (3) has a perforation (301) at the high-pressure hose (202). The high-pressure hose (202) passes through the N-shaped filtrate box (3) and through the perforation (301). A filter plate (302) is installed on the inner top of the N-shaped filtrate box (3) by screws. A filter sponge (303) is placed on top of the filter plate (302).

5. The crushing and dust removal equipment for construction solid waste according to claim 1, characterized in that, Each of the Z-shaped baffles (8011) is coated with polytetrafluoroethylene. The top of the dust collector housing (1) is fixed with a fixing block (803) on both sides of the guide hole. The two ends of the two fixing blocks (803) are fixedly connected to two baffles (4). The two fixing blocks (803) are provided with a converging groove (8031). The two converging grooves (8031) are respectively located below the second baffle (8014) in the two Z-shaped baffles (8011). The bottom of the two converging grooves (8031) is inclined to both sides. The two baffles (4) are provided with a square through hole (401) at the fixing block (803). The two ends of the two fixing blocks (803) are fixed with a guide plate (8032) at the converging groove (8031). The bottom surface of each guide plate (8032) overlaps the square through hole (401).

6. A crushing and dust removal device for construction solid waste according to claim 5, characterized in that, The outer walls of the two baffles (4) are fixed with liquid guide tubes (403) at the square through holes (401), and the bottom end of each liquid guide tube (403) penetrates the top wall of the N-shaped filter box (3) and is located inside.

7. The crushing and dust removal equipment for construction solid waste according to claim 1, characterized in that, A square exhaust pipe (402) is fixed to the top of the two baffles (4), the bottom of the square exhaust pipe (402) is connected to the top of the baffle channel (801) located above, and a metal filter screen (4021) is fixed inside the square exhaust pipe (402) by screws.

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