A scrap steel crushing tailings sorting device

Abstract

The present invention provides a scrap steel crushing tailings sorting device, which is applicable to the scrap steel crushing tailings sorting technology field, and comprises a housing; a feeding hopper, a feeding port, a screen plate assembly, a pneumatic swing device, a fixing frame, an ultrasonic sensor, a trigger, a control assembly, an eddy current separator, and a dust removal mechanism. The present invention divides the scrap steel crushing tailings into three levels according to their volume, so as to prevent the large-volume materials from covering the small-volume materials during the eddy current separator sorting, making it difficult to sort out the small-volume materials, thereby reducing the sorting rate and sorting accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of scrap steel crushing tailings sorting, in particular to a scrap steel crushing tailings sorting device. Background Art

[0002] The main goal of crushing tailings sorting is to use eddy current separator to efficiently and accurately separate non-ferrous metals (such as copper, aluminum, etc.) and other non-metallic substances from the mixture after scrap steel crushing.

[0003] However, when the existing eddy current separator is used to separate crushed tailings of different sizes, the large-volume materials may cover the small-volume materials on the conveyor belt, causing the small-volume materials to be unable to be fully exposed to the alternating magnetic field, thereby failing to generate sufficient eddy current for separation, resulting in a reduction in the sorting rate. It will also affect the sorting accuracy, causing some non-ferrous metals to fail to be properly separated. Summary of the invention

[0004] The purpose of the present invention is to provide a scrap steel crushing tailings sorting device, aiming to solve the problems mentioned in the background technology.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0006] In a first aspect, a scrap steel crushing tailings sorting device is characterized by comprising:

[0007] case;

[0008] A feeding hopper is fixedly connected to the shell;

[0009] A feeding port is provided at one end of the shell;

[0010] The sieve plate assembly comprises a first sieve plate, a second sieve plate and a third sieve plate, wherein the first sieve plate, the second sieve plate and the third sieve plate are vertically distributed inside the shell and are all in contact with the inner wall of the shell near one end of the discharge port, and the first sieve plate and the second sieve plate are both provided with sieve holes, and the sieve holes of the first sieve plate are larger than the sieve holes of the second sieve plate;

[0011] The first screen plate is used to screen out the largest scrap steel crushing tailings;

[0012] The second screen plate is used to screen out medium-sized scrap steel tailings;

[0013] The third screen plate is used to carry the remaining scrap steel crushing tailings;

[0014] A pneumatic swing device is connected to the first sieve plate, the second sieve plate and the third sieve plate, and is connected to the housing, and the pneumatic swing device is used to swing the first sieve plate, the second sieve plate and the third sieve plate;

[0015] A fixed frame connected to the pneumatic swing device;

[0016] A second lifting mechanism is connected to the housing and to the fixing frame, and the second lifting mechanism is used to drive the fixing frame to rise and fall;

[0017] An ultrasonic sensor is fixedly connected to the inner wall of the housing, and is used to detect whether there is scrap steel tailings falling between the first sieve plate and the second sieve plate and between the second sieve plate and the third sieve plate;

[0018] A triggering member, mounted on the fixed frame, for sensing the position of the screen plate assembly;

[0019] A control component connected to the triggering member to control the motion state of the pneumatic swing device;

[0020] The eddy current separator is arranged on one side of the housing at the feeding port;

[0021] The dust removal mechanism is connected to one end of the shell away from the feeding port, and is used for automatically removing dust from the first sieve plate, the second sieve plate and the third sieve plate when they are within a preset angle range.

[0022] Furthermore, the second lifting mechanism comprises:

[0023] A support seat, fixedly connected to the shell;

[0024] A second motor is fixedly connected to the support base;

[0025] Two threaded rods are provided and are both rotatably connected to the inner wall of the shell, one end of the threaded rod passes through the shell, and the threaded rod is threadedly connected to the fixing frame;

[0026] Two guide rods are provided and both are fixedly connected to the inner wall of the shell, and the guide rods are slidably connected to the fixed frame;

[0027] A first pulley assembly connected to an output end of the second motor and a threaded rod;

[0028] The second pulley assembly is connected to the output end of the second motor and another threaded rod.

[0029] Furthermore, the pneumatic swing device comprises:

[0030] The first piston cylinder is provided with three groups, and each group has two, the three groups of first piston cylinders are respectively connected to one end of the first sieve plate, the second sieve plate and the third sieve plate, and the piston rods are respectively hinged to the first sieve plate, the second sieve plate and the third sieve plate, and the outer shells of the first piston cylinders are fixedly connected to the fixing frame;

[0031] The second piston cylinder is provided with three groups, and each group has two, the three groups of second piston cylinders are respectively connected to the other ends of the first sieve plate, the second sieve plate and the third sieve plate, and the piston rods are hinged to the first sieve plate, the second sieve plate and the third sieve plate, and the outer shells of the second piston cylinders are fixedly connected to the fixed frame;

[0032] The power device is used for driving the first piston cylinder and the second piston cylinder to respectively drive the first screen plate, the second screen plate and the third screen plate to move up and down in opposite directions.

[0033] Furthermore, the power device comprises:

[0034] A first air pipe, one end of which is fixedly connected to the lower cavity of the second piston cylinder on the upper side;

[0035] The second air pipe has two ends fixedly connected to the upper cavity of the second piston cylinder on the upper side and the upper cavity of the first piston cylinder on the upper side respectively;

[0036] The third air pipe has two ends fixedly connected to the first piston cylinder lower cavity on the upper side and the first piston cylinder upper cavity in the middle respectively;

[0037] The fourth air pipe has two ends which are respectively fixedly connected with the first piston cylinder lower cavity in the middle and the second piston cylinder lower cavity in the middle;

[0038] The fifth air pipe has two ends fixedly connected to the middle upper cavity of the second piston cylinder and the lower cavity of the second piston cylinder at the lower side respectively;

[0039] The sixth air pipe has two ends fixedly connected to the upper cavity of the second piston cylinder at the lower side and the upper cavity of the first piston cylinder at the lower side respectively;

[0040] An eighth air pipe is fixedly connected to the lower cavity of the first piston cylinder at the lower side, and a first one-way valve is installed in the eighth air pipe;

[0041] A ninth air pipe is fixedly connected to the lower cavity of the first piston cylinder at the lower side, and a second one-way valve is installed in the ninth air pipe;

[0042] A pneumatic mechanism connected to the other end of the first air pipe, the pneumatic mechanism being used to control the flow of gas in the first air pipe;

[0043] A tube winding roller is rotatably connected to the inner walls at both ends of the shell, the tube winding roller is connected to the first air pipe, and the tube winding roller is used to wind or loosen the first air pipe;

[0044] There are two groups of connecting components, both of which are connected to the second lifting mechanism. The connecting components are connected to the pipe winding roller to drive the pipe winding roller to operate.

[0045] Furthermore, the pneumatic mechanism comprises:

[0046] Cylinder;

[0047] A mounting seat, which is arranged on one side of the housing and connected to the control assembly;

[0048] A sealing plate is fixedly connected to the mounting seat and to one end of the cylinder, wherein the first air pipe passes through the sealing plate and is embedded in the cylinder and communicates with the cylinder;

[0049] The first piston block is slidably connected to the inner wall of the cylinder;

[0050] A first piston rod, one end of which is fixedly connected to the first piston block, and the first piston rod is connected to the control assembly;

[0051] The driving assembly is connected to the mounting seat and the other end of the first piston rod. The driving assembly drives the first piston rod and the first piston block to slide back and forth along the cylinder.

[0052] Furthermore, the driving component comprises:

[0053] A fixing plate fixedly connected to the mounting seat;

[0054] A first motor, fixedly connected to the fixing plate;

[0055] A rotating plate, one end of which is fixedly connected to the output end of the first motor;

[0056] A fixed block, fixedly connected to the other end of the first piston rod;

[0057] A limiting block, fixedly connected to the fixing block;

[0058] The moving rod is fixedly connected to the other end of the rotating plate and is slidably connected to the sliding groove in the middle of the limiting block.

[0059] Furthermore, the control component includes:

[0060] An L-shaped plate fixedly connected to the first piston rod;

[0061] A slide rail assembly, wherein the slide rail is fixedly connected to a mounting seat;

[0062] A driving plate is fixedly connected to the slider of the slide rail assembly, and one end of the driving plate passes through the shell and is slidably connected to the shell. Two second inclined surfaces are formed at one end of the driving plate close to the shell, and two first inclined surfaces matching the second inclined surfaces are formed on the trigger member. During detection, the driving plate is slidably connected to the trigger member.

[0063] A pressure sensor is fixedly connected to the other end of the driving plate. During detection, the pressure sensor abuts against the L-shaped plate.

[0064] A connecting plate is sleeved on the driving plate and fixedly connected to the driving plate;

[0065] Two springs are provided, and both ends are fixedly connected to the connecting plate and the shell respectively.

[0066] Furthermore, the connection component includes:

[0067] A mounting plate, fixedly connected to the housing;

[0068] A rotating rod, rotatably connected to the mounting plate;

[0069] a third pulley connected to the threaded rod and the rotating rod;

[0070] A first bevel gear is mounted on the rotating rod;

[0071] The second bevel gear is installed on the rotating shaft of the tube winding roller and is meshed and connected with the first bevel gear.

[0072] Furthermore, the dust removal mechanism comprises:

[0073] A gas amplification component connected to the inner wall of the shell and to the ninth gas pipe, wherein the gas amplification component is used to amplify the flow rate of the gas;

[0074] A dust collection component is connected to the shell, and is used to automatically collect dust from the first sieve plate, the second sieve plate and the third sieve plate when they are within a preset angle range;

[0075] The air supply component is connected to the gas amplification component and the dust collection component. The air supply component is used to supply air to the dust collection component when the first sieve plate, the second sieve plate and the third sieve plate are in a preset angle range to drive the dust collection component to operate.

[0076] Furthermore, the gas amplification component comprises:

[0077] The compressor is fixedly connected to the inner wall of the shell, and the air inlet end is fixedly connected to the ninth air pipe;

[0078] A gas amplifier, fixedly connected to the inner wall of the shell;

[0079] A first connecting air pipe, both ends of which are fixedly connected to the air outlet of the compressor and the air inlet of the gas amplifier respectively;

[0080] The air supply pipe is fixedly connected to the air outlet end of the gas amplifier.

[0081] The above solution of the present invention includes at least the following beneficial effects:

[0082] The present invention passes the scrap steel crushing tailings into the shell through the discharge funnel, and the scrap steel crushing tailings fall on the first screen plate under the action of gravity. The pneumatic swing device drives the first screen plate, the second screen plate and the third screen plate to swing, so that the first screen plate screens out the scrap steel crushing tailings with the largest volume, the second screen plate screens out the scrap steel crushing tailings with a medium volume, and the remaining tailings fall on the third screen plate. The scrap steel crushing tailings are divided into three levels according to their volume, so as to prevent large-volume materials from covering small-volume materials during eddy current separator sorting, resulting in difficulty in sorting out small-volume materials and reducing the sorting rate and sorting accuracy.

[0083] When the pneumatic swing device drives the first sieve plate, the second sieve plate and the third sieve plate to swing, when the first sieve plate, the second sieve plate and the third sieve plate swing until their two ends are flush, and the first sieve plate, the second sieve plate and the third sieve plate continue to swing upward with one end abutting against the inner wall of the shell, the pneumatic swing device drives the dust removal mechanism to automatically vacuum them.

[0084] After the ultrasonic sensor detects that there is no material falling between the first sieve plate and the second sieve plate and between the second sieve plate and the third sieve plate, the second lifting mechanism operates to drive the fixed frame to rise, the fixed frame drives the pneumatic swing device to rise, the pneumatic swing device drives the sieve plate assembly to rise, and at the same time, the fixed frame rises and drives the trigger member to rise, and the trigger member moves to the preset position and drives the control component to operate, so that the control component drives the pneumatic swing device to move to the first extreme position and then stops, at this time, the first sieve plate, the second sieve plate and the third sieve plate abut one end of the inner wall of the shell body and are at the lowermost side, so that when the sieve plate assembly moves to the unloading port, the scrap steel crushing tailings in the sieve plate assembly are unloaded from the unloading port into the eddy current separator, and then the second lifting mechanism drives the fixed frame to descend, the fixed frame drives the pneumatic swing device to descend, the pneumatic swing device drives the first sieve plate, the second sieve plate and the third sieve plate to descend, and at the same time, the fixed frame descends and drives the trigger member to descend, and the trigger member moves to the preset position and drives the control component to operate, so that the control component drives the pneumatic swing device to run again. BRIEF DESCRIPTION OF THE DRAWINGS

[0085] Figure 1 A three-dimensional schematic diagram of a scrap steel crushing tailings sorting device provided in an embodiment of the present invention Figure 1 .

[0086] Figure 2 A cross-sectional view of a scrap steel crushing tailings sorting device provided in an embodiment of the present invention Figure 1 .

[0087] Figure 3 A three-dimensional schematic diagram of a scrap steel crushing tailings sorting device provided in an embodiment of the present invention Figure 2 .

[0088] Figure 4A cross-sectional view of a scrap steel crushing tailings sorting device provided in an embodiment of the present invention Figure 2 .

[0089] Figure 5 A cross-sectional view of a scrap steel crushing tailings sorting device provided in an embodiment of the present invention Figure 3 .

[0090] Figure 6 A schematic diagram of the partial connection structure of a pneumatic swing device, a second lifting mechanism, a dust removal mechanism and a screen plate assembly in a scrap steel crushing tailings sorting device provided in an embodiment of the present invention.

[0091] Figure 7 A cross-sectional view of a scrap steel crushing tailings sorting device provided in an embodiment of the present invention Figure 4 .

[0092] Figure 8 for Figure 5 Enlarged view of point A in the middle.

[0093] Fig. 9 for Figure 7 Enlarged view of point B in the middle.

[0094] In the attached drawings: 1-shell; 2-feeding hopper; 3-pneumatic mechanism; 31-mounting seat; 32-fixed plate; 33-first motor; 34-rotating plate; 35-moving rod; 36-fixed block; 37-first piston rod; 38-first piston block; 39-cylinder; 310-sealing plate; 311-limiting block; 4-connecting assembly; 41-third pulley; 42-rotating rod; 43-mounting plate; 44-first bevel gear; 45-second bevel gear; 5-first piston cylinder; 61-first air pipe; 62-second air pipe; 63-third air pipe; 64-fourth air pipe; 65-fifth air pipe; 66-sixth air pipe; 67-eighth air pipe; 68-ninth air pipe; 7-second lifting mechanism; 71-second motor; 72-support seat; 73-threaded rod; 74-guide rod; 75-first belt Wheel assembly; 76-second pulley assembly; 8-control assembly; 81-L-type plate; 82-slide rail assembly; 83-drive plate; 84-pressure sensor; 85-connecting plate; 86-spring; 9-tube roller; 10-dust removal mechanism; 101-compressor; 102-gas amplifier; 103-first connecting air pipe; 104-air supply pipe; 105-air storage cylinder; 106-second connecting air pipe; 107-Venturi tube; 108-third connecting air pipe; 109-dust suction box; 110-dust suction pipe; 111-intake pipe; 112-fourth piston block; 113-limiting piston rod; 114-sealing rod; 115-vent; 116-exhaust pipe; 11-screen plate assembly; 12-feeding port; 13-second piston cylinder; 14-trigger; 15-ultrasonic sensor; 16-fixed frame. DETAILED DESCRIPTION

[0095] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0096] like Figure 1 and Figure 2 FIG. 1 is a schematic diagram of a scrap steel crushing tailings sorting device provided by an embodiment of the present invention, comprising:

[0097] Shell 1;

[0098] A feeding hopper 2 is fixedly connected to the shell 1;

[0099] A feed opening 12 is provided at one end of the housing 1;

[0100] The sieve plate assembly 11 includes a first sieve plate, a second sieve plate and a third sieve plate, which are vertically distributed inside the shell 1 and abut against the inner wall of the shell 1 near one end of the discharge port 12. The first sieve plate and the second sieve plate are both provided with sieve holes, and the sieve holes of the first sieve plate are larger than the sieve holes of the second sieve plate.

[0101] The first screen plate is used to screen out the largest scrap steel crushing tailings;

[0102] The second screen plate is used to screen out medium-sized scrap steel tailings;

[0103] The third screen plate is used to carry the remaining scrap steel crushing tailings;

[0104] A pneumatic swing device is connected to the first sieve plate, the second sieve plate and the third sieve plate, and is connected to the housing 1, and the pneumatic swing device is used to swing the first sieve plate, the second sieve plate and the third sieve plate;

[0105] A fixed frame 16 connected to the pneumatic swing device;

[0106] A second lifting mechanism 7 is connected to the housing 1 and to the fixing frame 16, and the second lifting mechanism 7 is used to drive the fixing frame 16 to move up and down;

[0107] An ultrasonic sensor 15 is fixedly connected to the inner wall of the housing 1, and is used to detect whether there is scrap steel tailings falling between the first sieve plate and the second sieve plate and between the second sieve plate and the third sieve plate;

[0108] A trigger member 14 is mounted on the fixing frame 16 and is used to sense the position of the sieve plate assembly 11;

[0109] The control assembly 8 is connected to the trigger member 14 to control the motion state of the pneumatic swing device;

[0110] An eddy current separator (not shown in the figure) is arranged on one side of the housing 1 at the feed opening 12;

[0111] The dust removal mechanism 10 is connected to one end of the shell 1 away from the discharge port 12, and is used for automatically collecting dust from the first sieve plate, the second sieve plate and the third sieve plate when they are within a preset angle range.

[0112] In an embodiment of the present invention, the scrap steel crushing tailings are passed into the shell 1 through the discharge funnel 2, and the scrap steel crushing tailings fall on the first screen plate under the action of gravity. The pneumatic swing device drives the first screen plate, the second screen plate and the third screen plate to swing, so that the first screen plate screens out the scrap steel crushing tailings with the largest volume, the second screen plate screens out the scrap steel crushing tailings with medium volume, and the remaining tailings fall on the third screen plate. The scrap steel crushing tailings are divided into three levels according to their volume, so as to prevent large-volume materials from covering small-volume materials during sorting by the eddy current separator, resulting in difficulty in sorting out small-volume materials and reducing the sorting rate and sorting accuracy.

[0113] When the pneumatic swing device drives the first sieve plate, the second sieve plate and the third sieve plate to swing, when the first sieve plate, the second sieve plate and the third sieve plate are swung until their two ends are flush, and the first sieve plate, the second sieve plate and the third sieve plate continue to swing upward at one end that abuts against the inner wall of the shell 1, the pneumatic swing device drives the dust removal mechanism 10 to automatically vacuum the dust.

[0114] After the ultrasonic sensor 15 detects that there is no material falling between the first sieve plate and the second sieve plate and between the second sieve plate and the third sieve plate, the second lifting mechanism 7 operates to drive the fixed frame 16 to rise, the fixed frame 16 drives the pneumatic swing device to rise, the pneumatic swing device drives the sieve plate assembly 11 to rise, and at the same time, the fixed frame 16 rises and drives the trigger member 14 to rise. After the trigger member 14 moves to the preset position, it drives the control component 8 to operate, so that the control component 8 drives the pneumatic swing device to move to the first limit position and then stops. At this time, the first sieve plate, the second sieve plate and the third sieve plate abut against the shell One end of the inner wall of the body 1 is at the lowest side, which is convenient for the sieve plate assembly 11 to move to the discharge port 12. The scrap steel tailings in the sieve plate assembly 11 are discharged from the discharge port 12 into the eddy current separator, and then the second lifting mechanism 7 drives the fixed frame 16 to descend, the fixed frame 16 drives the pneumatic swing device to descend, the pneumatic swing device drives the first sieve plate, the second sieve plate and the third sieve plate to descend, and at the same time, the fixed frame 16 descends and drives the trigger member 14 to descend. After the trigger member 14 moves to the preset position, it drives the control component 8 to run, so that the control component 8 drives the pneumatic swing device to run again.

[0115] Among them, eddy current separator is the existing technology.

[0116] like Figure 2 and Figure 3 As shown, as a preferred embodiment of the present invention, the second lifting mechanism 7 includes:

[0117] A support base 72, fixedly connected to the housing 1;

[0118] The second motor 71 is fixedly connected to the support base 72;

[0119] Two threaded rods 73 are provided and are both rotatably connected to the inner wall of the housing 1. One end of the threaded rod 73 passes through the housing 1, and the threaded rod 73 is threadedly connected to the fixing frame 16;

[0120] Two guide rods 74 are provided and both are fixedly connected to the inner wall of the housing 1 , and the guide rods 74 are slidably connected to the fixed frame 16 ;

[0121] A first pulley assembly 75 connected to an output end of the second motor 71 and a threaded rod 73;

[0122] The second pulley assembly 76 is connected to the output end of the second motor 71 and another threaded rod 73 .

[0123] In the embodiment of the present invention, the second motor 71 drives the threaded rod 73 to rotate through the first pulley assembly 75 and the second pulley assembly 76 , and the threaded rod 73 drives the fixed frame 16 to move up and down under the guidance of the guide rod 74 .

[0124] It should be noted that the first pulley assembly 75 and the second pulley assembly 76 are both composed of two pulleys and a belt, the two pulleys of the first pulley assembly 75 are respectively fixedly connected to the output end of the second motor 71 and a threaded rod 73, the belt of the first pulley assembly 75 is sleeved on the two pulleys of the first pulley assembly 75, the two pulleys of the second pulley assembly 76 are respectively fixedly connected to the output end of the second motor 71 and another threaded rod 73, and the belt of the second pulley assembly 76 is sleeved on the two pulleys of the second pulley assembly 76.

[0125] like Figure 2 As shown, as a preferred embodiment of the present invention, the pneumatic swing device includes:

[0126] The first piston cylinder 5 is provided with three groups, and each group has two, the three groups of first piston cylinders 5 are respectively connected to one end of the first sieve plate, the second sieve plate and the third sieve plate, and the piston rods are respectively hinged to the first sieve plate, the second sieve plate and the third sieve plate, and the outer shells of the first piston cylinders 5 are fixedly connected to the fixed frame 16;

[0127] The second piston cylinder 13 is provided with three groups, and each group has two. The three groups of second piston cylinders 13 are respectively connected to the other ends of the first sieve plate, the second sieve plate and the third sieve plate, and the piston rods are hinged to the first sieve plate, the second sieve plate and the third sieve plate. The outer shells of the second piston cylinders 13 are fixedly connected to the fixed frame 16.

[0128] The power device is used to drive the first piston cylinder 5 and the second piston cylinder 13 to respectively drive the first sieve plate, the second sieve plate and the third sieve plate to move up and down in opposite directions.

[0129] In this embodiment of the present invention, the power device drives the first piston cylinder 5 to move up and down, and at the same time drives the second piston cylinder 13 to move in the opposite direction of the first piston cylinder 5. The first piston cylinder 5 and the second piston cylinder 13 drive the first sieve plate, the second sieve plate and the third sieve plate to swing.

[0130] like Figure 1 , Figure 2 and Figure 6 As shown, as a preferred embodiment of the present invention, the power device includes:

[0131] The first air pipe 61 has one end fixedly connected to the lower cavity of the second piston cylinder 13 on the upper side;

[0132] The second air pipe 62 has two ends fixedly connected to the upper cavity of the second piston cylinder 13 and the upper cavity of the first piston cylinder 5 respectively;

[0133] The third air pipe 63 has two ends fixedly connected to the lower cavity of the first piston cylinder 5 on the upper side and the upper cavity of the first piston cylinder 5 in the middle;

[0134] The fourth air pipe 64 has two ends fixedly connected to the lower cavity of the first piston cylinder 5 and the lower cavity of the second piston cylinder 13;

[0135] The fifth air pipe 65 has two ends fixedly connected to the upper cavity of the middle second piston cylinder 13 and the lower cavity of the lower second piston cylinder 13 respectively;

[0136] The sixth air pipe 66 has two ends fixedly connected to the upper cavity of the second piston cylinder 13 and the upper cavity of the first piston cylinder 5 respectively;

[0137] The eighth air pipe 67 is fixedly connected to the lower cavity of the first piston cylinder 5 at the lower side, and a first one-way valve is installed in the eighth air pipe 67;

[0138] The ninth air pipe 68 is fixedly connected to the lower cavity of the first piston cylinder 5 at the lower side, and a second one-way valve is installed in the ninth air pipe 68;

[0139] A pneumatic mechanism 3 connected to the other end of the first air pipe 61, wherein the pneumatic mechanism 3 is used to control the flow of gas in the first air pipe 61;

[0140] The tube winding roller 9 is rotatably connected to the inner walls at both ends of the housing 1, and the tube winding roller 9 is connected to the first air tube 61, and the tube winding roller 9 is used to wind or loosen the first air tube 61;

[0141] There are two groups of connecting components 4, and both are connected to the second lifting mechanism 7. The connecting components 4 are connected to the pipe winding roller 9 to drive the pipe winding roller 9 to operate.

[0142] In the embodiment of the present invention, when the pneumatic mechanism 3 controls the gas in the first air pipe 61 to flow into the lower cavity of the second piston cylinder 13 on the upper side, the gas pushes the piston block and the piston rod of the second piston cylinder 13 on the upper side to move upward, and the piston rod drives one end of the first sieve plate to move upward. When the piston block of the second piston cylinder 13 on the upper side moves upward, the gas in the upper cavity of the second piston cylinder 13 on the upper side is pushed into the upper cavity of the first piston cylinder 5 on the upper side through the second air pipe 62, thereby driving the piston block and the piston rod of the first piston cylinder 5 on the upper side to move downward, and the piston rod drives the other end of the first sieve plate to move downward, and the first piston cylinder 5 on the upper side is When the piston block of the cylinder 5 moves downward, the gas in the lower cavity of the upper first piston cylinder 5 is pushed into the upper cavity of the middle first piston cylinder 5 through the third air pipe 63, thereby driving the piston block and piston rod of the middle first piston cylinder 5 to move downward, and the piston rod drives one end of the second sieve plate to move downward. When the piston block of the middle first piston cylinder 5 moves downward, the gas in the lower cavity of the middle first piston cylinder 5 is pushed into the lower cavity of the middle second piston cylinder 13 through the fourth air pipe 64, thereby pushing the piston block and piston rod of the middle second piston cylinder 13 to move upward, and the piston rod drives the other end of the second sieve plate to move upward.

[0143] When the piston block of the middle second piston cylinder 13 moves upward, the gas in the upper cavity of the middle second piston cylinder 13 is pushed into the lower cavity of the second piston cylinder 13 on the lower side through the fifth air pipe 65, thereby pushing the piston block and piston rod of the lower second piston cylinder 13 to move upward, and the piston rod drives one end of the third sieve plate to move upward. When the piston block of the lower second piston cylinder 13 moves upward, the gas in the upper cavity of the lower second piston cylinder 13 is pushed into the upper cavity of the lower first piston cylinder 5 through the sixth air pipe 66, thereby driving the piston block and piston rod of the lower first piston cylinder 5 to move downward, and the piston rod drives the other end of the third sieve plate to move downward, and the piston block of the lower first piston cylinder 5 moves downward to pass the gas in the lower cavity of the lower first piston cylinder 5 into the ninth air pipe 68.

[0144] When the pneumatic mechanism 3 controls the gas in the lower cavity of the second piston cylinder 13 on the upper side to flow into the first air pipe 61, the gas in the lower cavity of the second piston cylinder 13 on the upper side enters the pneumatic mechanism 3 through the first air pipe 61, thereby driving the piston block and the piston rod of the second piston cylinder 13 on the upper side to move downward, and the piston rod drives one end of the first sieve plate to move downward. When the piston block of the second piston cylinder 13 on the upper side moves downward, the total volume of the upper cavity of the second piston cylinder 13 on the upper side increases, thereby generating negative pressure, and the gas in the upper cavity of the first piston cylinder 5 on the upper side is sucked into the upper cavity of the second piston cylinder 13 on the upper side through the second air pipe 62, thereby driving the piston block and the piston rod of the first piston cylinder 5 on the upper side to move upward, and the piston rod drives the other end of the first sieve plate to move upward, and the first piston cylinder 5 on the upper side When the piston block of the middle first piston cylinder 5 moves upward, the total volume of the lower cavity of the upper first piston cylinder 5 increases, thereby generating negative pressure, and the gas in the upper cavity of the middle first piston cylinder 5 is sucked into the lower cavity of the upper first piston cylinder 5 through the third air pipe 63, thereby driving the piston block and piston rod of the middle first piston cylinder 5 to move upward, and the piston rod drives one end of the second sieve plate to move upward. When the piston block of the middle first piston cylinder 5 moves upward, the total volume of the lower cavity of the middle first piston cylinder 5 increases, thereby generating negative pressure, and the gas in the lower cavity of the middle second piston cylinder 13 is sucked into the lower cavity of the middle first piston cylinder 5 through the fourth air pipe 64, thereby driving the piston block and piston rod of the middle second piston cylinder 13 to move downward, and the piston rod drives the other end of the second sieve plate to move downward.

[0145] When the piston block of the middle second piston cylinder 13 moves downward, the total volume of the upper cavity of the middle second piston cylinder 13 increases, thereby generating negative pressure, and the gas in the lower cavity of the second piston cylinder 13 on the lower side is sucked into the upper cavity of the second piston cylinder 13 on the middle side through the fifth air pipe 65, thereby driving the piston block and piston rod of the second piston cylinder 13 on the lower side to move downward, and the piston rod drives one end of the third sieve plate to move downward. When the piston block of the second piston cylinder 13 on the lower side moves downward, the total volume of the upper cavity of the second piston cylinder 13 on the lower side increases, thereby generating negative pressure, and the gas in the upper cavity of the first piston cylinder 5 on the lower side is sucked into the upper cavity of the second piston cylinder 13 on the lower side through the sixth air pipe 66, thereby driving the piston block and piston rod of the first piston cylinder 5 on the lower side to move upward, and the piston rod drives the other end of the third sieve plate to move upward. When the piston block of the first piston cylinder 5 on the lower side moves upward, the total volume of the lower cavity of the first piston cylinder 5 on the lower side increases, thereby generating negative pressure, and the external gas is sucked into the lower cavity of the first piston cylinder 5 on the lower side through the eighth air pipe 67.

[0146] The present invention repeats the above operation, so that the first screen plate, the second screen plate and the third screen plate are always in a swinging state, so as to fully screen the scrap steel crushing tailings thereon, and pneumatically drives the first screen plate, the second screen plate and the third screen plate to swing at the same time, which is highly efficient and saves costs.

[0147] When the threaded rod 73 rotates to drive the fixed frame 16 to rise, the fixed frame 16 drives the first piston cylinder 5 and the second piston cylinder 13 to rise, and at the same time, the threaded rod 73 rotates to drive the connecting component 4 to operate, and the connecting component 4 drives the tube winding roller 9 to rotate and loosen the first air pipe 61 to prevent the first air pipe 61 from being insufficient in length and unable to rise with the second piston cylinder 13 when the second piston cylinder 13 rises. When the threaded rod 73 rotates to drive the fixed frame 16 to descend, the fixed frame 16 drives the first piston cylinder 5 and the second piston cylinder 13 to descend, and at the same time, the threaded rod 73 rotates to drive the connecting component 4 to operate, and the connecting component 4 drives the tube winding roller 9 to rotate in the opposite direction to wind the first air pipe 61 to prevent the first air pipe 61 from being damaged or affecting the operation of other components due to the excessive length of the first air pipe 61 when the second piston cylinder 13 descends.

[0148] like Figure 3 and Figure 4 As shown, as a preferred embodiment of the present invention, the pneumatic mechanism 3 includes:

[0149] Cylinder 39;

[0150] The mounting seat 31 is disposed on one side of the housing 1 and connected to the control assembly 8;

[0151] The sealing plate 310 is fixedly connected to the mounting seat 31 and to one end of the cylinder 39. The first air pipe 61 passes through the sealing plate 310 and is embedded in the cylinder 39 and communicates with the cylinder 39.

[0152] The first piston block 38 is slidably connected to the inner wall of the cylinder 39;

[0153] A first piston rod 37, one end of which is fixedly connected to a first piston block 38, and the first piston rod 37 is connected to a control assembly 8;

[0154] A driving assembly connected to the mounting seat 31 and to the other end of the first piston rod 37, wherein the driving assembly drives the first piston rod 37 and the first piston block 38 to slide back and forth along the cylinder 39;

[0155] The drive assembly comprises:

[0156] A fixing plate 32, fixedly connected to the mounting seat 31;

[0157] A first motor 33 is fixedly connected to the fixing plate 32;

[0158] A rotating plate 34, one end of which is fixedly connected to the output end of the first motor 33;

[0159] A fixed block 36, fixedly connected to the other end of the first piston rod 37;

[0160] The limiting block 311 is fixedly connected to the fixing block 36;

[0161] The moving rod 35 is fixedly connected to the other end of the rotating plate 34 and is slidably connected to the sliding groove in the middle of the limiting block 311 .

[0162] In the embodiment of the present invention, the first motor 33 drives the rotating plate 34 to rotate, and the rotating plate 34 drives the moving rod 35 to move with the first motor 33 as the axis. Since the sealing plate 310 is fixed to the mounting seat 31, the cylinder 39 is fixed to the sealing plate 310, the first piston block 38 is slidably connected to the cylinder 39, the first piston rod 37 is fixed to the first piston block 38, the fixed block 36 is fixed to the first piston rod 37, and the limit block 311 is fixed to the fixed block 36. Therefore, when the moving rod 35 moves with the first motor 33 as the axis, it can only drive the limit block 311 to move back and forth along the placement direction of the cylinder 39, the limit block 311 drives the fixed block 36 to move back and forth, and the fixed block 36 drives The first piston rod 37 moves back and forth, and the first piston rod 37 drives the first piston block 38 to slide back and forth along the cylinder 39. When the first piston block 38 moves along the cylinder 39 toward the side close to the sealing plate 310, the first piston block 38 pushes the gas in the cylinder 39 into the first air pipe 61, and the gas in the first air pipe 61 flows into the lower cavity of the second piston cylinder 13 on the upper side. When the first piston block 38 moves along the cylinder 39 toward the side away from the sealing plate 310, the total volume in the cavity of the cylinder 39 increases, thereby generating negative pressure, sucking the gas in the first air pipe 61 into the cylinder 39, so that the gas in the lower cavity of the second piston cylinder 13 on the upper side flows into the first air pipe 61.

[0163] It should be noted that the pneumatic mechanism 3 can also achieve the same effect by cooperating with the first compressor and the vacuum pump, but the effect is not as good as the above technical solution.

[0164] like Figure 3 and Figure 7 As shown, as a preferred embodiment of the present invention, the control component 8 includes:

[0165] An L-shaped plate 81 fixedly connected to the first piston rod 37;

[0166] A slide rail assembly 82, the slide rail is fixedly connected to the mounting seat 31;

[0167] The driving plate 83 is fixedly connected to the slider of the slide rail assembly 82, and one end of the driving plate 83 passes through the housing 1 and is slidably connected to the housing 1. The end of the driving plate 83 close to the housing 1 is provided with two second inclined surfaces, and the trigger member 14 is provided with two first inclined surfaces matching the second inclined surfaces. During detection, the driving plate 83 is slidably connected to the trigger member 14;

[0168] The pressure sensor 84 is fixedly connected to the other end of the driving plate 83. During detection, the pressure sensor 84 abuts against the L-shaped plate 81;

[0169] The connecting plate 85 is sleeved on the driving plate 83 and fixedly connected to the driving plate 83;

[0170] Two springs 86 are provided, and two ends thereof are fixedly connected to the connecting plate 85 and the housing 1 respectively.

[0171] In an embodiment of the present invention, when the first piston block 38 moves to a position close to the sealing plate 310, that is, the first extreme position, at this time, one end of the first sieve plate, the second sieve plate and the third sieve plate abutting against the inner wall of the shell 1 is at the uppermost side, when the first piston block 38 moves to the middle of the cylinder 39, at this time, both ends of the first sieve plate, the second sieve plate and the third sieve plate are flush, and when the first piston block 38 moves to a position away from the sealing plate 310, that is, the second extreme position, at this time, one end of the first sieve plate, the second sieve plate and the third sieve plate abutting against the inner wall of the shell 1 is at the lowermost side.

[0172] During detection, when the fixed frame 16 moves upward, the fixed frame 16 drives the trigger member 14 to move upward. When the trigger member 14 moves to the preset position, it pushes the driving plate 83 to move to the end away from the trigger member 14, and the driving plate 83 drives the connecting plate 85 to move the tension spring 86. At the same time, the driving plate 83 drives the pressure sensor 84 to move. When the first piston rod 37 drives the L-shaped plate 81 to move to the first limit position, the L-shaped plate 81 is in contact with the pressure sensor 84, and the pressure sensor 84 detects pressure. The pressure sensor 84 sends an electrical signal to the first motor 33 to drive the first motor 33 to stop rotating. At this time, the first sieve plate, the second sieve plate and the third sieve plate are abutted against one end of the inner wall of the shell 1 at the lowest side, which is convenient for the first sieve plate, the second sieve plate and the third sieve plate to move to the unloading port 12, and then the trigger member 14 continues to move upward to disengage from the driving plate 83, and the driving plate 83 is reset under the elastic action of the spring 86.

[0173] When the fixed frame 16 moves downward, the fixed frame 16 drives the trigger member 14 to move downward. When the trigger member 14 moves to the preset position, it pushes the driving plate 83 to move to the side away from the trigger member 14. The driving plate 83 drives the connecting plate 85 to move the tension spring 86. At the same time, the driving plate 83 drives the pressure sensor 84 to move. When the pressure sensor 84 contacts the L-shaped plate 81, the pressure sensor 84 detects pressure. The pressure sensor 84 sends an electrical signal to the first motor 33 to drive the first motor 33 to start and resume working.

[0174] like Figure 7 As shown, as a preferred embodiment of the present invention, the connection component 4 includes:

[0175] A mounting plate 43, fixedly connected to the housing 1;

[0176] A rotating rod 42 is rotatably connected to a mounting plate 43;

[0177] A third pulley 41 connected to the threaded rod 73 and the rotating rod 42;

[0178] A first bevel gear 44 is mounted on the rotating rod 42;

[0179] The second bevel gear 45 is mounted on the rotating shaft of the tube winding roller 9 and is meshedly connected with the first bevel gear 44 .

[0180] In the embodiment of the present invention, when the threaded rod 73 rotates to drive the fixed frame 16 to rise, the threaded rod 73 drives the rotating rod 42 to rotate through the third pulley 41, the rotating rod 42 drives the first bevel gear 44 to rotate, the first bevel gear 44 drives the second bevel gear 45 to rotate, and the second bevel gear 45 drives the tube roller 9 to rotate to loosen the first air pipe 61.

[0181] When the threaded rod 73 rotates to drive the fixed frame 16 to descend, the threaded rod 73 drives the rotating rod 42 to rotate in the opposite direction through the third pulley 41, the rotating rod 42 drives the first bevel gear 44 to rotate in the opposite direction, the first bevel gear 44 drives the second bevel gear 45 to rotate in the opposite direction, and the second bevel gear 45 drives the tube winding roller 9 to rotate in the opposite direction to wind the first air tube 61.

[0182] It should be noted that the third pulley 41 is composed of two pulleys and a belt, the two pulleys are fixedly connected to the threaded rod 73 and the rotating rod 42 respectively, and the belt is sleeved on the two pulleys.

[0183] like Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, as a preferred embodiment of the present invention, the dust removal mechanism 10 includes:

[0184] A gas amplification component connected to the inner wall of the housing 1 and to the ninth gas pipe 68, wherein the gas amplification component is used to amplify the flow rate of the gas;

[0185] A dust collection component connected to the housing 1, the dust collection component is used to automatically collect dust from the first sieve plate, the second sieve plate and the third sieve plate when they are within a preset angle range;

[0186] An air supply component is connected to the gas amplification component and to the dust collection component, and the air supply component is used to supply air to the dust collection component when the first sieve plate, the second sieve plate and the third sieve plate are in a preset angle range, so as to drive the dust collection component to operate;

[0187] The gas amplification assembly comprises:

[0188] The compressor 101 is fixedly connected to the inner wall of the housing 1, and the air inlet end is fixedly connected to the ninth air pipe 68;

[0189] The gas amplifier 102 is fixedly connected to the inner wall of the housing 1;

[0190] The first connecting air pipe 103 has two ends fixedly connected to the air outlet of the compressor 101 and the air inlet of the gas amplifier 102 respectively;

[0191] The gas supply pipe 104 is fixedly connected to the gas outlet end of the gas amplifier 102;

[0192] The dust collection component comprises:

[0193] The venturi tube 107 is fixedly connected to the housing 1, and the air outlet end passes through the housing 1;

[0194] There are three dust collecting boxes 109, and all of them are fixedly connected to the inner wall of the housing 1 away from the feeding port 12;

[0195] The dust collection pipe 110 is fixedly connected to the dust collection box 109, and each dust collection box 109 is connected to a plurality of dust collection pipes 110;

[0196] A third connecting air pipe 108, one end of which is fixedly connected to the dust box 109, and the other end of which is fixedly connected to the air suction end of the venturi tube 107;

[0197] The air supply assembly comprises:

[0198] The gas storage cylinder 105 is fixedly connected to the inner wall of the housing 1;

[0199] The fourth piston block 112 is slidably connected to the inner wall of the gas storage cylinder 105, and the fourth piston block 112 divides the cavity in the gas storage cylinder 105 into a third upper cavity and a third lower cavity;

[0200] A limiting piston rod 113, one end of which passes through the air storage cylinder 105 and is fixedly connected to the fourth piston block 112, and the limiting piston rod 113 is limitedly slidably connected to the air storage cylinder 105;

[0201] The sealing rod 114 is fixedly connected to the inner bottom of the gas storage cylinder 105;

[0202] The vent hole 115 is formed on the fourth piston block 112 and is slidably connected to the sealing rod 114;

[0203] The air inlet pipe 111 is fixedly connected to the third upper cavity of the air storage cylinder 105, and a third one-way valve is installed on the air inlet pipe 111;

[0204] A second connecting air pipe 106, one end of which is connected to the air inlet end of the venturi tube 107, and the other end of which is fixedly connected to the third upper cavity of the air storage cylinder 105, and a fourth one-way valve is installed on the second connecting air pipe 106;

[0205] The exhaust pipe 116 is fixedly connected to the third lower cavity of the air storage cylinder 105 , and a fifth one-way valve is installed on the exhaust pipe 116 .

[0206] In the embodiment of the present invention, when the piston block of the lower first piston cylinder 5 moves downward to pass the gas in the lower cavity of the lower first piston cylinder 5 into the ninth air pipe 68, the gas in the ninth air pipe 68 enters the compressor 101, and the compressor 101 compresses and pressurizes the gas, and then passes the gas into the gas amplifier 102 through the first connecting air pipe 103. Under the action of the gas amplifier 102, a large amount of low-pressure airflow is passed into the air storage cylinder 105 through the air delivery pipe 104, and the airflow pushes the fourth piston block 112 to move upward until the vent hole 115 is separated from the sealing rod 114. At this time, the fourth piston block 112 is pushed upward until the vent hole 115 is separated from the sealing rod 114. The two ends of the first sieve plate, the second sieve plate and the third sieve plate are flush, and then the piston block of the first piston cylinder 5 on the lower side continues to move downward, and the gas in the third lower cavity of the air storage cylinder 105 enters the third upper cavity through the vent hole 115, and then enters the venturi tube 107 through the second connecting air pipe 106, so that the suction end of the venturi tube 107 generates suction, and the dust on the first sieve plate, the second sieve plate and the third sieve plate is sucked into the dust box 109 through the dust suction pipe 110, and then the dust in the dust box 109 is sucked into the venturi tube 107 through the third connecting air pipe 108, and finally discharged from the shell 1.

[0207] When the piston block of the lower first piston cylinder 5 moves upward, the fourth piston block 112 drives the limiting piston rod 113 to move downward and reset under the action of gravity, and the fourth piston block 112 discharges the gas in the third lower chamber of the gas storage cylinder 105 through the exhaust pipe 116. At the same time, the external gas enters the third upper chamber of the gas storage cylinder 105 through the intake pipe 111, and no gas enters the intake end of the venturi tube 107, and the suction end stops suctioning, that is, the dust box 109 and the dust pipe 110 stop dust removal. The present invention starts dust removal only when the two ends of the first sieve plate, the second sieve plate and the third sieve plate are flush. During screening, the scrap steel tailings swing with the first, second and third sieve plates, so that the scrap steel tailings collide with each other and knock off the dust attached to the scrap steel tailings. When the first, second and third sieve plates are tilted toward the side close to the dust suction pipe 110, the scrap steel tailings and dust that have not fallen off the first and second sieve plates and the scrap steel tailings and dust on the third sieve plate will tilt toward the side of the dust suction pipe 110 together with the first, second and third sieve plates, which is convenient for dust removal on the sieve plate assembly 11, and the dust removal effect is good.

[0208] The above embodiment of the present invention provides a scrap steel crushing tailings sorting device, which achieves the following technical effects:

[0209] The scrap steel crushing tailings are passed into the shell body 1 through the discharge funnel 2, and the scrap steel crushing tailings fall on the first screen plate under the action of gravity. The first motor 33 drives the rotating plate 34 to rotate, and the rotating plate 34 drives the moving rod 35 to move with the first motor 33 as the axis. Since the sealing plate 310 is fixed to the mounting seat 31, the cylinder 39 is fixed to the sealing plate 310, the first piston block 38 is slidably connected to the cylinder 39, the first piston rod 37 is fixed to the first piston block 38, the fixed block 36 is fixed to the first piston rod 37, and the limit block 311 is fixed to the fixed block 36, when the moving rod 35 moves with the first motor 33 as the axis, it can only drive the limit block 311 to move back and forth along the placement direction of the cylinder 39, and the limit block 311 drives the fixed block 39 to move back and forth. The fixed block 36 moves back and forth, and the fixed block 36 drives the first piston rod 37 to move back and forth. The first piston rod 37 drives the first piston block 38 to slide back and forth along the cylinder 39. When the first piston block 38 moves along the cylinder 39 to the side close to the sealing plate 310, the first piston block 38 pushes the gas in the cylinder 39 into the first air pipe 61, and the gas in the first air pipe 61 flows into the lower cavity of the second piston cylinder 13 on the upper side. When the first piston block 38 moves along the cylinder 39 to the side away from the sealing plate 310, the total volume in the cavity of the cylinder 39 increases, thereby generating negative pressure, sucking the gas in the first air pipe 61 into the cylinder 39, so that the gas in the lower cavity of the second piston cylinder 13 on the upper side flows into the first air pipe 61.

[0210] When the gas in the first air pipe 61 flows into the lower cavity of the second piston cylinder 13 on the upper side, the gas pushes the piston block and the piston rod of the second piston cylinder 13 on the upper side to move upward, and the piston rod drives one end of the first sieve plate to move upward. When the piston block of the second piston cylinder 13 on the upper side moves upward, the gas in the upper cavity of the second piston cylinder 13 on the upper side is pushed into the upper cavity of the first piston cylinder 5 on the upper side through the second air pipe 62, thereby driving the piston block and the piston rod of the first piston cylinder 5 on the upper side to move downward, and the piston rod drives the other end of the first sieve plate to move downward, and the piston block of the first piston cylinder 5 on the upper side moves downward. When moving, the gas in the lower cavity of the upper first piston cylinder 5 is pushed into the upper cavity of the middle first piston cylinder 5 through the third air pipe 63, thereby driving the piston block and the piston rod of the middle first piston cylinder 5 to move downward, and the piston rod drives one end of the second screen plate to move downward. When the piston block of the middle first piston cylinder 5 moves downward, the gas in the lower cavity of the middle first piston cylinder 5 is pushed into the lower cavity of the middle second piston cylinder 13 through the fourth air pipe 64, thereby pushing the piston block and the piston rod of the middle second piston cylinder 13 to move upward, and the piston rod drives the other end of the second screen plate to move upward.

[0211] When the piston block of the middle second piston cylinder 13 moves upward, the gas in the upper cavity of the middle second piston cylinder 13 is pushed into the lower cavity of the second piston cylinder 13 on the lower side through the fifth air pipe 65, thereby pushing the piston block and piston rod of the lower second piston cylinder 13 to move upward, and the piston rod drives one end of the third sieve plate to move upward. When the piston block of the lower second piston cylinder 13 moves upward, the gas in the upper cavity of the lower second piston cylinder 13 is pushed into the upper cavity of the lower first piston cylinder 5 through the sixth air pipe 66, thereby driving the piston block and piston rod of the lower first piston cylinder 5 to move downward, and the piston rod drives the other end of the third sieve plate to move downward, and the piston block of the lower first piston cylinder 5 moves downward to pass the gas in the lower cavity of the lower first piston cylinder 5 into the ninth air pipe 68.

[0212] When the gas in the lower cavity of the second piston cylinder 13 on the upper side flows into the first air pipe 61, the gas in the lower cavity of the second piston cylinder 13 on the upper side enters the pneumatic mechanism 3 through the first air pipe 61, thereby driving the piston block and the piston rod of the second piston cylinder 13 on the upper side to move downward, and the piston rod drives one end of the first sieve plate to move downward. When the piston block of the second piston cylinder 13 on the upper side moves downward, the total volume of the upper cavity of the second piston cylinder 13 on the upper side increases, thereby generating negative pressure, and the gas in the upper cavity of the first piston cylinder 5 on the upper side is sucked into the upper cavity of the second piston cylinder 13 on the upper side through the second air pipe 62, thereby driving the piston block and the piston rod of the first piston cylinder 5 on the upper side to move upward, and the piston rod drives the other end of the first sieve plate to move upward, and the piston of the first piston cylinder 5 on the upper side When the block moves upward, the total volume of the lower cavity of the first piston cylinder 5 on the upper side increases, thereby generating negative pressure, and the gas in the upper cavity of the first piston cylinder 5 in the middle is sucked into the lower cavity of the first piston cylinder 5 on the upper side through the third air pipe 63, thereby driving the piston block and piston rod of the middle first piston cylinder 5 to move upward, and the piston rod drives one end of the second sieve plate to move upward. When the piston block of the middle first piston cylinder 5 moves upward, the total volume of the lower cavity of the first piston cylinder 5 in the middle is increased, thereby generating negative pressure, and the gas in the lower cavity of the second piston cylinder 13 in the middle is sucked into the lower cavity of the first piston cylinder 5 in the middle through the fourth air pipe 64, thereby driving the piston block and piston rod of the middle second piston cylinder 13 to move downward, and the piston rod drives the other end of the second sieve plate to move downward.

[0213] When the piston block of the middle second piston cylinder 13 moves downward, the total volume of the upper cavity of the middle second piston cylinder 13 increases, thereby generating negative pressure, and the gas in the lower cavity of the second piston cylinder 13 on the lower side is sucked into the upper cavity of the second piston cylinder 13 on the middle side through the fifth air pipe 65, thereby driving the piston block and piston rod of the second piston cylinder 13 on the lower side to move downward, and the piston rod drives one end of the third sieve plate to move downward. When the piston block of the second piston cylinder 13 on the lower side moves downward, the total volume of the upper cavity of the second piston cylinder 13 on the lower side increases, thereby generating negative pressure, and the gas in the upper cavity of the first piston cylinder 5 on the lower side is sucked into the upper cavity of the second piston cylinder 13 on the lower side through the sixth air pipe 66, thereby driving the piston block and piston rod of the first piston cylinder 5 on the lower side to move upward, and the piston rod drives the other end of the third sieve plate to move upward. When the piston block of the first piston cylinder 5 on the lower side moves upward, the total volume of the lower cavity of the first piston cylinder 5 on the lower side increases, thereby generating negative pressure, and the external gas is sucked into the lower cavity of the first piston cylinder 5 on the lower side through the eighth air pipe 67.

[0214] The present invention repeats the above operation, so that the first screen plate, the second screen plate and the third screen plate are always in a swinging state, and the scrap steel crushing tailings thereon are fully screened, so that the first screen plate screens out the scrap steel crushing tailings with the largest volume, the second screen plate screens out the scrap steel crushing tailings with medium volume, and the remaining tailings fall on the third screen plate. The scrap steel crushing tailings are divided into three levels according to their volume, so as to prevent large-volume materials from covering small-volume materials during sorting by the eddy current separator, resulting in difficulty in sorting out small-volume materials and reducing the sorting rate and sorting accuracy. The first screen plate, the second screen plate and the third screen plate are driven to swing at the same time by pneumatic means, which is efficient and cost-saving.

[0215] When the piston block of the lower first piston cylinder 5 moves downward to pass the gas in the lower cavity of the lower first piston cylinder 5 into the ninth air pipe 68, the gas in the ninth air pipe 68 enters the compressor 101, and the compressor 101 compresses and pressurizes the gas, and then passes the gas into the gas amplifier 102 through the first connecting air pipe 103. Under the action of the gas amplifier 102, a large amount of low-pressure airflow is passed into the air storage cylinder 105 through the air delivery pipe 104, and the airflow pushes the fourth piston block 112 to move upward until the vent hole 115 is separated from the sealing rod 114. At this time, the first sieve plate and the first sieve plate are The two ends of the second sieve plate are flush with the third sieve plate, and then the piston block of the first piston cylinder 5 on the lower side continues to move downward, and the gas in the third lower cavity of the air storage cylinder 105 enters the third upper cavity through the vent hole 115, and then enters the venturi tube 107 through the second connecting air pipe 106, so that the suction end of the venturi tube 107 generates suction, and the dust on the first sieve plate, the second sieve plate and the third sieve plate is sucked into the dust box 109 through the dust suction pipe 110, and then the dust in the dust box 109 is sucked into the venturi tube 107 through the third connecting air pipe 108, and finally discharged from the shell 1.

[0216] When the piston block of the lower first piston cylinder 5 moves upward, the fourth piston block 112 drives the limiting piston rod 113 to move downward and reset under the action of gravity, and the fourth piston block 112 discharges the gas in the third lower chamber of the gas storage cylinder 105 through the exhaust pipe 116. At the same time, the external gas enters the third upper chamber of the gas storage cylinder 105 through the intake pipe 111, and no gas enters the intake end of the venturi tube 107, and the suction end stops suctioning, that is, the dust box 109 and the dust pipe 110 stop dust removal. The present invention starts dust removal only when the two ends of the first sieve plate, the second sieve plate and the third sieve plate are flush. During screening, the scrap steel tailings swing with the first, second and third sieve plates, so that the scrap steel tailings collide with each other and knock off the dust attached to the scrap steel tailings. When the first, second and third sieve plates are tilted toward the side close to the dust suction pipe 110, the scrap steel tailings and dust that have not fallen off the first and second sieve plates and the scrap steel tailings and dust on the third sieve plate will tilt toward the side of the dust suction pipe 110 together with the first, second and third sieve plates, which is convenient for dust removal on the sieve plate assembly 11, and the dust removal effect is good.

[0217] After the ultrasonic sensor 15 detects that there is no material falling between the first sieve plate and the second sieve plate and between the second sieve plate and the third sieve plate, the second motor 71 drives the threaded rod 73 to rotate through the first pulley assembly 75 and the second pulley assembly 76. The threaded rod 73 drives the fixed frame 16 to rise under the guidance of the guide rod 74. The fixed frame 16 drives the first piston cylinder 5 and the second piston cylinder 13 to rise. The first piston cylinder 5 and the second piston cylinder 13 drive the first sieve plate, the second sieve plate and the third sieve plate to rise. At the same time, the fixed frame 16 rises and drives the trigger member 14 to rise. After the trigger member 14 moves to the preset position, it pushes the driving plate 83 to move toward the end away from the trigger member 14. The driving plate 83 drives the connecting plate 85 to move the tension spring 86. At the same time, the driving plate 83 drives the pressure sensor 84 to move. When the first piston rod 37 drives the L-shaped plate 81 to move to the first limit position, the L-shaped plate 81 is in contact with the pressure sensor 84, and the pressure sensor 84 detects pressure. The pressure sensor 84 sends an electrical signal to the first motor 33 to drive the first motor 33 to stop rotating. At this time, the first sieve plate, the second sieve plate and the third sieve plate are abutted against one end of the inner wall of the shell 1 and are at the lowermost side, which is convenient for the first sieve plate, the second sieve plate and the third sieve plate to move to the unloading port 12, and the scrap steel crushing tailings thereon are unloaded from the unloading port 12 into the eddy current separator, and then the trigger member 14 continues to move upward to disengage from the driving plate 83, and the driving plate 83 is reset under the elastic action of the spring 86.

[0218] The second motor 71 drives the threaded rod 73 to rotate through the first pulley assembly 75 and the second pulley assembly 76. The threaded rod 73 drives the fixed frame 16 to descend under the guidance of the guide rod 74. The fixed frame 16 drives the first piston cylinder 5 and the second piston cylinder 13 to descend. The first piston cylinder 5 and the second piston cylinder 13 drive the first sieve plate, the second sieve plate and the third sieve plate to descend. At the same time, the fixed frame 16 descends and drives the trigger member 14 to move downward. When the trigger member 14 moves to the preset position, it pushes the drive plate 83 to move to the side away from the trigger member 14. The drive plate 83 drives the connecting plate 85 to move the tension spring 86. At the same time, the drive plate 83 drives the pressure sensor 84 to move. When the pressure sensor 84 contacts the L-shaped plate 81, the pressure sensor 84 detects pressure. The pressure sensor 84 sends an electrical signal to the first motor 33 to drive the first motor 33 to start and resume work.

[0219] When the threaded rod 73 rotates to drive the fixed frame 16 to rise, the threaded rod 73 drives the rotating rod 42 to rotate through the third pulley 41, the rotating rod 42 drives the first bevel gear 44 to rotate, the first bevel gear 44 drives the second bevel gear 45 to rotate, and the second bevel gear 45 drives the tube winding roller 9 to rotate to loosen the first air pipe 61, so as to prevent the first air pipe 61 from being insufficient in length and unable to rise with the second piston cylinder 13 when the second piston cylinder 13 rises.

[0220] When the threaded rod 73 rotates to drive the fixed frame 16 to descend, the threaded rod 73 drives the rotating rod 42 to rotate in the opposite direction through the third pulley 41, the rotating rod 42 drives the first bevel gear 44 to rotate in the opposite direction, the first bevel gear 44 drives the second bevel gear 45 to rotate in the opposite direction, and the second bevel gear 45 drives the tube winding roller 9 to rotate in the opposite direction to wind the first air pipe 61, so as to prevent the first air pipe 61 from contacting or entangled with other components due to its excessive length when the second piston cylinder 13 descends, thereby causing damage to the first air pipe 61 or affecting the operation of other components.

[0221] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A scrap steel crushing tailings sorting device, characterized in that: include: case; A feeding hopper is fixedly connected to the shell; A feeding port is provided at one end of the shell; The sieve plate assembly comprises a first sieve plate, a second sieve plate and a third sieve plate, wherein the first sieve plate, the second sieve plate and the third sieve plate are vertically distributed inside the shell and are all in contact with the inner wall of the shell near one end of the discharge port, and the first sieve plate and the second sieve plate are both provided with sieve holes, and the sieve holes of the first sieve plate are larger than the sieve holes of the second sieve plate; The first screen plate is used to screen out the largest scrap steel crushing tailings; The second screen plate is used to screen out medium-sized scrap steel tailings; The third screen plate is used to carry the remaining scrap steel crushing tailings; A pneumatic swing device is connected to the first sieve plate, the second sieve plate and the third sieve plate, and is connected to the housing, and the pneumatic swing device is used to swing the first sieve plate, the second sieve plate and the third sieve plate; A fixed frame connected to the pneumatic swing device; A second lifting mechanism is connected to the housing and to the fixing frame, and the second lifting mechanism is used to drive the fixing frame to rise and fall; An ultrasonic sensor is fixedly connected to the inner wall of the housing, and is used to detect whether there is scrap steel tailings falling between the first sieve plate and the second sieve plate and between the second sieve plate and the third sieve plate; A triggering member, mounted on the fixed frame, for sensing the position of the screen plate assembly; A control component connected to the triggering member to control the motion state of the pneumatic swing device; The eddy current separator is arranged on one side of the housing at the feeding port; A dust removal mechanism is connected to an end of the housing away from the feeding port, and is used to automatically remove dust from the first sieve plate, the second sieve plate and the third sieve plate when they are within a preset angle range; The second lifting mechanism comprises: A support seat, fixedly connected to the shell; A second motor is fixedly connected to the support base; Two threaded rods are provided and are both rotatably connected to the inner wall of the shell, one end of the threaded rod passes through the shell, and the threaded rod is threadedly connected to the fixing frame; Two guide rods are provided and both are fixedly connected to the inner wall of the shell, and the guide rods are slidably connected to the fixed frame; A first pulley assembly connected to an output end of the second motor and a threaded rod; a second pulley assembly connected to the output end of the second motor and another threaded rod; The pneumatic swing device comprises: The first piston cylinder is provided with three groups, and each group has two, the three groups of first piston cylinders are respectively connected to one end of the first sieve plate, the second sieve plate and the third sieve plate, and the piston rods are respectively hinged to the first sieve plate, the second sieve plate and the third sieve plate, and the outer shells of the first piston cylinders are fixedly connected to the fixing frame; The second piston cylinder is provided with three groups, and each group has two, the three groups of second piston cylinders are respectively connected to the other ends of the first sieve plate, the second sieve plate and the third sieve plate, and the piston rods are hinged to the first sieve plate, the second sieve plate and the third sieve plate, and the outer shells of the second piston cylinders are fixedly connected to the fixed frame; A power device is used to drive the first piston cylinder and the second piston cylinder to respectively drive the first screen plate, the second screen plate and the third screen plate to move up and down in opposite directions; The power device comprises: A first air pipe, one end of which is fixedly connected to the lower cavity of the second piston cylinder on the upper side; The second air pipe has two ends fixedly connected to the upper cavity of the second piston cylinder on the upper side and the upper cavity of the first piston cylinder on the upper side respectively; The third air pipe has two ends fixedly connected to the first piston cylinder lower cavity on the upper side and the first piston cylinder upper cavity in the middle respectively; The fourth air pipe has two ends which are respectively fixedly connected with the first piston cylinder lower cavity in the middle and the second piston cylinder lower cavity in the middle; The fifth air pipe has two ends fixedly connected to the middle upper cavity of the second piston cylinder and the lower cavity of the second piston cylinder at the lower side respectively; The sixth air pipe has two ends fixedly connected to the upper cavity of the second piston cylinder at the lower side and the upper cavity of the first piston cylinder at the lower side respectively; An eighth air pipe is fixedly connected to the lower cavity of the first piston cylinder at the lower side, and a first one-way valve is installed in the eighth air pipe; A ninth air pipe is fixedly connected to the lower cavity of the first piston cylinder at the lower side, and a second one-way valve is installed in the ninth air pipe; A pneumatic mechanism connected to the other end of the first air pipe, the pneumatic mechanism being used to control the flow of gas in the first air pipe; A tube winding roller is rotatably connected to the inner walls at both ends of the shell, the tube winding roller is connected to the first air pipe, and the tube winding roller is used to wind or loosen the first air pipe; Two connecting assemblies are provided and both are connected to the second lifting mechanism. The connecting assemblies are connected to the pipe winding roller to drive the pipe winding roller to operate; The pneumatic mechanism comprises: Cylinder; A mounting seat, which is arranged on one side of the housing and connected to the control assembly; A sealing plate is fixedly connected to the mounting seat and to one end of the cylinder, wherein the first air pipe passes through the sealing plate and is embedded in the cylinder and communicates with the cylinder; The first piston block is slidably connected to the inner wall of the cylinder; A first piston rod, one end of which is fixedly connected to the first piston block, and the first piston rod is connected to the control assembly; The driving assembly is connected to the mounting seat and the other end of the first piston rod. The driving assembly drives the first piston rod and the first piston block to slide back and forth along the cylinder.

2. The scrap steel crushing tailings sorting device according to claim 1 is characterized in that: The drive assembly comprises: A fixing plate, fixedly connected to the mounting seat; A first motor is fixedly connected to the fixing plate; A rotating plate, one end of which is fixedly connected to the output end of the first motor; A fixed block, fixedly connected to the other end of the first piston rod; A limiting block, fixedly connected to the fixing block; The moving rod is fixedly connected to the other end of the rotating plate and is slidably connected to the sliding groove in the middle of the limiting block.

3. The scrap steel crushing tailings sorting device according to claim 2 is characterized in that: The control component comprises: An L-shaped plate fixedly connected to the first piston rod; A slide rail assembly, wherein the slide rail is fixedly connected to a mounting seat; A driving plate is fixedly connected to the slider of the slide rail assembly, and one end of the driving plate passes through the shell and is slidably connected to the shell. Two second inclined surfaces are formed at one end of the driving plate close to the shell, and two first inclined surfaces matching the second inclined surfaces are formed on the trigger member. During detection, the driving plate is slidably connected to the trigger member. A pressure sensor is fixedly connected to the other end of the driving plate. During detection, the pressure sensor abuts against the L-shaped plate. A connecting plate is sleeved on the driving plate and fixedly connected to the driving plate; Two springs are provided, and both ends are fixedly connected to the connecting plate and the shell respectively.

4. The scrap steel crushing tailings sorting device according to claim 3 is characterized in that: The connection component comprises: A mounting plate, fixedly connected to the housing; A rotating rod, rotatably connected to the mounting plate; a third pulley connected to the threaded rod and the rotating rod; A first bevel gear is mounted on the rotating rod; The second bevel gear is installed on the rotating shaft of the tube winding roller and is meshed and connected with the first bevel gear.

5. The scrap steel crushing tailings sorting device according to claim 4 is characterized in that: The dust removal mechanism comprises: A gas amplification component connected to the inner wall of the shell and to the ninth gas pipe, wherein the gas amplification component is used to amplify the flow rate of the gas; A dust collection component is connected to the shell, and is used to automatically collect dust from the first sieve plate, the second sieve plate and the third sieve plate when they are within a preset angle range; The air supply component is connected to the gas amplification component and the dust collection component. The air supply component is used to supply air to the dust collection component when the first sieve plate, the second sieve plate and the third sieve plate are in a preset angle range to drive the dust collection component to operate.

6. The scrap steel crushing tailings sorting device according to claim 5 is characterized in that: The gas amplification assembly comprises: The compressor is fixedly connected to the inner wall of the shell, and the air inlet end is fixedly connected to the ninth air pipe; A gas amplifier, fixedly connected to the inner wall of the shell; A first connecting air pipe, both ends of which are fixedly connected to the air outlet of the compressor and the air inlet of the gas amplifier respectively; The air supply pipe is fixedly connected to the air outlet end of the gas amplifier.

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