CN111804578B

CN111804578B - Hot mine vibrating screen for coal mine

Info

Publication number: CN111804578B
Application number: CN202010785619.3A
Authority: CN
Inventors: 梁练
Original assignee: Huizhou Huida Mechanical Equipment Co ltd
Current assignee: Huizhou Huida mechanical equipment Co.,Ltd.
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2022-01-11
Anticipated expiration: 2040-08-06
Also published as: CN111804578A

Abstract

The invention discloses a hot mine vibrating screen for a coal mine, which comprises a vibrating screen body, an air draft device and a lifting adjusting device, wherein the air draft device is arranged on the vibrating screen body; a vibrating screen body: the vibration-damping device comprises a screen box, a fixed seat, springs, vibration-damping supports and a bottom plate, wherein the four vibration-damping supports are arranged, the array is fixed at the top end of the fixed seat, the top end of each vibration-damping support is provided with the springs, the fixed seat is provided with the four vibration-damping supports and is fixed on the front side surface and the rear side surface of the fixed seat, the bottom end of each vibration-damping support is connected with the springs, the top end of the screen box is provided with a feed port, a vibration exciter is arranged at the right end of the feed port, and two groups of screen plates are obliquely and fixedly arranged in the screen box; air draft device: include exhaust column, multi-ported tube, aspiration pump and air duct, the air duct is evenly installed between the inner wall of sieve case, and is located between two sieve boards, and this hot ore shale shaker can carry out convulsions to sieve incasement portion and handle, reduces the temperature of sieve incasement portion, helps prolonging the life of sieve.

Description

Hot mine vibrating screen for coal mine

Technical Field

The invention relates to the technical field of mechanical equipment, in particular to a hot mine vibrating screen for a coal mine.

Background

The hot ore vibration sieve is an adoption biax vibration exciter, the motor does not participate in the vibration, by the external reverse synchronous revolution of two motors, thereby make the screen frame make periodic reciprocating motion along the linear direction reach the vibrating equipment of screening purpose, it is when carrying out hot ore screening, the temperature of sieve incasement portion is high, the temperature that leads to sieve case and sieve is high, the thermal expansion that is heated easily produces the damage, traditional hot ore vibration sieve can't be to the processing of cooling down of sieve incasement portion, the impaired degree that leads to the sieve is serious, long service life is low.

Disclosure of Invention

The invention aims to overcome the existing defects and provides a hot mine vibrating screen for a coal mine, which can perform air draft treatment on the inside of a screen box, reduce the temperature inside the screen box, help to prolong the service life of a screen plate and effectively solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a hot mine vibrating screen for a coal mine comprises a vibrating screen body, an air draft device and a lifting adjusting device;

a vibrating screen body: the vibration-damping support comprises a screen box, four groups of fixing seats, springs, vibration-damping supports and a bottom plate, wherein the four groups of the vibration-damping supports are arranged and are fixed at the top end of the bottom plate in an array manner, the spring is arranged at the top end of each vibration-damping support, the four groups of the fixing seats are arranged and are fixed on the front side surface and the rear side surface of the screen box, the bottom ends of the fixing seats are connected with the springs, the top end of the screen box is provided with a feed port, a vibration exciter is arranged at the right end of the feed port, and two groups of screen plates are obliquely and fixedly arranged in the screen box;

air draft device: the air guide pipe is uniformly arranged between the inner walls of the sieve boxes and positioned between the two sieve plates, the side surface of the air guide pipe is provided with an air inlet hole, the end part of the air guide pipe is communicated with the multi-way pipe, the air suction pump is fixed at the top end of the bottom plate, and an air inlet of the air suction pump is communicated with the multi-way pipe through the air suction pipe;

the lifting adjusting device comprises: the vibration exciter is fixed at the top end of the bottom plate, a motor support is installed at the top end of the bottom plate, a motor base is installed at the top end of the motor support, a motor is installed in the motor base, and an output shaft of the motor is connected with the vibration exciter;

wherein: the air pump air extracting device is characterized by further comprising a control switch group, wherein the control switch group is fixed on the side face of the motor support, the input end of the control switch group is electrically connected with the output end of an external power supply, and the output end of the control switch group is electrically connected with the input ends of the motor and the air extracting pump.

Further, still include the cartridge filter, the cartridge filter is pegged graft in the air duct, and its tip passes through four screw fixation at the trailing flank of sieve case, sets up the cartridge filter and can avoid in the colliery granule gets into the air duct, prevents to arouse the jam.

Further, lift adjustment device includes installation piece, first connecting rod, lead screw and second connecting rod, the installation piece is equipped with two, and left installation piece articulates respectively has two first connecting rods, and the installation piece on right side articulates respectively has two second connecting rods, and the tip that is located the first connecting rod of top and second connecting rod all articulates the bottom at motor support, and the tip that is located the first connecting rod of below and second connecting rod all articulates the top at the bottom plate, lead screw and two installation piece threaded connection set up lift adjustment device, can freely adjust the height of motor, and the convenience is connected with the vibration exciter.

Further, still include the heat dissipation case, the heat dissipation case is fixed on the top of sieve case, and the louvre has been seted up on its top, and its right flank is equipped with the fan, the vibration exciter is fixed on the top of heat dissipation case, and the output of the input electricity connection control switch group of fan sets up the heat dissipation case and can support the vibration exciter by a certain height, reduces and sieve the heat transfer between the case to can promote the circulation of air of vibration exciter bottom through the fan.

Further, still include the fixed plate that shocks resistance, the fixed plate that shocks resistance is fixed on the feed inlet inner wall of sieve case, and the steel sheet that shocks resistance is installed on its top, and the steel sheet that shocks resistance of installation can reduce the impact of material whereabouts to the sieve, effectual protection sieve.

Further, still include telescopic link and damping spring, the stiff end of telescopic link is fixed on the top of shock-resistant fixed plate, and its flexible end is connected in the bottom of resistant steel sheet that shocks, damping spring cup joints the side at the telescopic link, can cushion the impact force that the material descends.

Furthermore, the distance between the top end of the screen box and the impact-resistant steel plate is less than 0.5m, so that damage to the screen box due to overlarge impact force when a coal mine falls is avoided.

Further, still include the connecting rod, the connecting rod is equipped with two, and it is located between two sieve boards, and its both ends are connected with the fixing base that corresponds around two respectively, set up the intensity that the connecting rod can improve the sieve case.

Compared with the prior art, the invention has the beneficial effects that: this hot mine shale shaker for coal mine has following benefit:

1. when the vibration exciter is installed, the vibration exciter is supported by the heat dissipation box to a certain height, so that the heat transfer between the screen box and the vibration exciter is effectively reduced, and the fan is installed at the heat dissipation box;

2. according to the hot mine vibrating screen for the coal mine, the lifting adjusting device is arranged at the bottom of the motor support, the distance between the two mounting blocks can be changed by utilizing the rotation of the screw rod, so that the angle between the first connecting rod and the horizontal plane and the angle between the second connecting rod and the horizontal plane are changed, the motor support is driven to ascend or descend by a certain height, the compression amount of a spring is compensated, the output shaft of the motor can be perfectly connected with the vibration exciter, and the connection difficulty between the motor and the vibration exciter is reduced;

3. the hot mine vibrating screen for the coal mine is characterized in that the impact-resistant steel plate is arranged at the position of the feeding hole, the impact-resistant steel plate can replace a screen plate to bear the falling impact force of materials, is easy to install and low in cost, can effectively protect the screen plate and prolong the service life of the screen plate, and meanwhile, the telescopic rod and the damping spring are arranged at the bottom end of the impact-resistant steel plate, so that the impact force of the materials can be further buffered, and the service life of the impact-resistant steel plate is prolonged;

4. this hot mine shale shaker for coal mine has the air duct at the internally mounted of sieve case, can take the hot-air of sieve incasement portion out under the effect of air-bleed pump, improves the air flux of sieve incasement portion, reduces the temperature of sieve incasement portion, and it has the cartridge filter to peg graft in the heat dissipation case simultaneously, can avoid in the particulate matter gets into the air duct, prevents that the air duct from blockking up, and the cartridge filter is dismantled and the installation all very convenient, and low in manufacturing cost, convenient to use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a rear view of the present invention;

FIG. 3 is a schematic view of a half-section structure of the present invention;

FIG. 4 is an enlarged view of the part A of the present invention;

FIG. 5 is a schematic view of the enlarged structure of the part B of the present invention.

In the figure: 1 control switch group, 2 feed inlets, 3 impact-resistant steel plates, 4 vibrating screen bodies, 41 screen boxes, 42 fixed seats, 43 springs, 44 damping supports, 45 bottom plates, 5 air draft devices, 51 air draft pipes, 52 multi-way pipes, 53 air suction pumps, 54 air guide pipes, 6 lifting adjusting devices, 61 mounting blocks, 62 first connecting rods, 63 lead screws, 64 second connecting rods, 7 motors, 8 vibration exciters, 9 fans, 10 motor supports, 11 screen plates, 12 heat dissipation boxes, 13 filter cartridges, 14 motor seats, 15 connecting rods, 16 telescopic rods, 17 impact-resistant fixed plates and 18 damping springs.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a hot mine vibrating screen for a coal mine comprises a vibrating screen body 4, an air draft device 5 and a lifting adjusting device 6;

vibrating screen body 4: comprises a screen box 41, a fixed seat 42, springs 43, shock-absorbing supports 44 and a bottom plate 45, wherein the shock-absorbing supports 44 are provided with four groups, the array is fixed at the top end of the bottom plate 45, the top end of each shock-absorbing support 44 is provided with the springs 43, the fixed seat 42 is provided with four groups and fixed at the front side surface and the rear side surface of the screen box 41, the bottom end of each shock-absorbing support is connected with the springs 43, the screen box 41 can be driven to vibrate under the action of the vibration exciters 8, and then the springs 43 are driven to vibrate, the vibration-absorbing screen box further comprises connecting rods 15, the two connecting rods 15 are positioned between two screen plates 11, the two ends of each connecting rod are respectively connected with the two front and rear corresponding fixed seats 42, the tightness of the connection between the fixed seats 42 and the screen box 41 can be improved by arranging the two connecting rods 15, the strength of the screen box 41 is improved, the feed inlet 2 is arranged at the top end of the screen box 41, the vibration exciters 8 are arranged at the right end of the feed inlet 2, and two groups of the two screen plates 11 are obliquely fixed inside the screen plates, the vibration exciter 8 is supported by the heat dissipation box 12 to a certain height, heat transfer quantity between the vibration exciter 8 and the screen box 41 is reduced, the top end of the heat dissipation box 12 is provided with heat dissipation holes, the heat dissipation holes can improve control circulation, the right side face of the heat dissipation box 12 is provided with a fan 9, the vibration exciter 8 is fixed to the top end of the heat dissipation box 12, and when the fan 9 works, the circulation quantity of air at the bottom end of the vibration exciter 8 can be increased, and air deposition is prevented;

an air draft device 5: comprises an exhaust pipe 51, a multi-way pipe 52, an air pump 53 and an air duct 54, wherein the air duct 54 is uniformly arranged between the inner walls of the screen box 41 and is positioned between two screen plates 11, the side surface of the air duct is provided with an air inlet hole, the position of the air inlet hole is positioned below to prevent the coal mine from directly smashing into the air inlet hole in the falling process, the end part of the air duct is communicated with the multi-way pipe 52, the air pump 53 is fixed at the top end of the bottom plate 45, an air inlet of the air pump is communicated with the multi-way pipe 52 through the exhaust pipe 51, when in use, the air pump 53 can generate suction force to suck hot air in the air duct 54 in the screen box 41 and converge into the exhaust pipe 51 through the multi-way pipe 52, and then the hot air is discharged from an air outlet of the air pump 53, the air filter cartridge 13 is inserted in the air duct 54, the end part of the filter cartridge 13 is fixed at the rear side surface of the screen box 41 through four screws, the air inlet hole at the side surface of the air duct 54 can be shielded by the filter cartridge 13, the particles are prevented from entering, the installation mode is simple, and the cleaning and the replacement are convenient;

lifting adjusting device 6: fixed on the top of the bottom plate 45, the top end of which is provided with the motor support 10, the lifting adjusting device 6 comprises two mounting blocks 61, first connecting rods 62, a screw 63 and second connecting rods 64, the number of the mounting blocks 61 is two, the left mounting block 61 is respectively hinged with the two first connecting rods 62, the right mounting block 61 is respectively hinged with the two second connecting rods 64, the end parts of the first connecting rod 62 and the second connecting rod 64 positioned above are both hinged on the bottom end of the motor support 10, the end parts of the first connecting rod 62 and the second connecting rod 64 positioned below are both hinged on the top end of the bottom plate 45, the screw 63 is in threaded connection with the two mounting blocks 61, the top end of the motor support 10 is provided with the motor base 14, the motor 7 is arranged in the motor base 14, the output shaft of the motor 7 is connected with the vibration exciter 8, during operation, the screw 63 is rotated, and then the two mounting blocks 61 move along the direction of the screw 63, when the motor support 10 needs to be lifted, the two mounting blocks 61 approach each other, and when the motor bracket 10 needs to be lowered, the two mounting blocks 61 are away from each other;

the sieve plate structure comprises a sieve plate 11, an impact-resistant fixed plate 17, an expansion link 16 and a damping spring 18, wherein the impact-resistant fixed plate 17 is fixed on the inner wall of a feeding port 2 of a sieve box 41, the impact-resistant steel plate 3 is installed at the top end of the impact-resistant fixed plate, the distance between the top end of the sieve box 41 and the impact-resistant steel plate 3 is less than 0.5m, the impact force generated by material descending can be borne, the sieve plate 11 is protected, the expansion link 16 and the damping spring 18 are arranged, the fixed end of the expansion link 16 is fixed at the top end of the impact-resistant fixed plate 17, the expansion link is connected to the bottom end of the impact-resistant steel plate 3, the damping spring 18 is sleeved on the side face of the expansion link 16, the damping spring 18 is arranged to buffer the impact-resistant steel plate 3 in the descending process of the material, and the service life of the impact-resistant steel plate 3 is prolonged;

wherein: the air-suction-type air-conditioner further comprises a control switch group 1, wherein the control switch group 1 is fixed on the side surface of the motor support 10, the input end of the control switch group 1 is electrically connected with the output end of an external power supply, and the output end of the control switch group 1 is electrically connected with the input ends of the motor 7, the fan 9 and the air suction pump 53.

When in use: firstly, the screw 63 is rotated to make the two mounting blocks 61 move along the direction of the screw 63, so as to drive the motor bracket 10 to ascend or descend, the output shaft of the motor 7 is connected with the vibration exciter 8, the material falls into the screen box 41 from the position of the feed inlet 2 and falls onto the impact-resistant steel plate 3, the shock absorption spring 18 buffers the impact on the impact-resistant steel plate 3, then the material falls onto the screen plate 11, the output shaft of the motor 7 drives the vibration exciter 8 to rotate, then the vibration exciter 8 drives the screen box 41 to vibrate, the material slowly slides down under the action of the screen plate 11 to be classified, meanwhile, the air suction pump 53 generates suction force, hot air in the screen box 41 is sucked into the air guide pipe 54, and flows into the air suction pipe 51 through the multi-way pipe 52 and then is discharged from the air outlet of the air suction pump 53, and the hot air in the screen box 41 is effectively discharged.

It is to be noted that the core chip of the control switch group 1 disclosed in this embodiment is a PLC single chip, the specific model is STM32F103VCT6, the preferred model of the motor 7 is A9M60JD, the preferred model of the blower 9 is DD-297495, the preferred model of the air pump 53 is VAP2300, and the control switch group 1 controls the motor 7, the blower 9 and the air pump 53 to operate by a method commonly used in the prior art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hot mine shale shaker for coal mine which characterized in that: comprises a vibrating screen body (4), an air draft device (5) and a lifting adjusting device (6);

vibrating screen body (4): the vibration-damping screen comprises a screen box (41), a fixed seat (42), springs (43), vibration-damping supports (44) and a bottom plate (45), wherein the vibration-damping supports (44) are provided with four groups, the array is fixed on the top end of the bottom plate (45), the springs (43) are installed on the top end of each vibration-damping support (44), the fixed seat (42) is provided with four groups and is fixed on the front side surface and the rear side surface of the screen box (41), the bottom end of each fixed seat is connected with the springs (43), the top end of the screen box (41) is provided with a feed inlet (2), vibration exciters (8) are installed at the position of the right end of the feed inlet (2), and two groups of screen plates (11) are obliquely and fixedly arranged in the screen box;

updraft ventilator (5): the sieve plate air-suction device comprises an air suction pipe (51), a multi-way pipe (52), an air suction pump (53) and an air guide pipe (54), wherein the air guide pipe (54) is uniformly arranged between the inner walls of the sieve box (41) and positioned between the two sieve plates (11), an air inlet hole is formed in the side surface of the air guide pipe, the end part of the air guide pipe is communicated with the multi-way pipe (52), the air suction pump (53) is fixed at the top end of the bottom plate (45), and an air inlet of the air suction pump is communicated with the multi-way pipe (52) through the air suction pipe (51);

lifting adjusting device (6): the vibration exciter is fixed at the top end of the bottom plate (45), a motor support (10) is installed at the top end of the bottom plate, a motor base (14) is installed at the top end of the motor support (10), a motor (7) is installed in the motor base (14), and an output shaft of the motor (7) is connected with the vibration exciter (8);

wherein: the air-suction pump is characterized by further comprising a control switch group (1), wherein the control switch group (1) is fixed on the side face of the motor support (10), the input end of the control switch group is electrically connected with the output end of an external power supply, and the output end of the control switch group is electrically connected with the input ends of the motor (7) and the air suction pump (53);

the filter is characterized by further comprising a filter cylinder (13), wherein the filter cylinder (13) is inserted into the air guide pipe (54), and the end part of the filter cylinder is fixed on the rear side surface of the screen box (41) through four screws;

the lifting adjusting device (6) comprises two mounting blocks (61), two first connecting rods (62), a lead screw (63) and two second connecting rods (64), the two mounting blocks (61) on the left side are respectively hinged with the two first connecting rods (62), the mounting block (61) on the right side is respectively hinged with the two second connecting rods (64), the end parts of the first connecting rod (62) and the second connecting rod (64) positioned above are hinged to the bottom end of the motor support (10), the end parts of the first connecting rod (62) and the second connecting rod (64) positioned below are hinged to the top end of the bottom plate (45), and the lead screw (63) is in threaded connection with the two mounting blocks (61);

the vibration exciter is characterized by further comprising a heat dissipation box (12), the heat dissipation box (12) is fixed to the top end of the screen box (41), heat dissipation holes are formed in the top end of the heat dissipation box, a fan (9) is arranged on the right side face of the heat dissipation box, the vibration exciter (8) is fixed to the top end of the heat dissipation box (12), and the input end of the fan (9) is electrically connected with the output end of the control switch group (1);

the sieve box is characterized by further comprising an impact-resistant fixing plate (17), wherein the impact-resistant fixing plate (17) is fixed on the inner wall of the feeding port (2) of the sieve box (41), and the top end of the impact-resistant fixing plate is provided with an impact-resistant steel plate (3);

the shock-absorbing device is characterized by further comprising a telescopic rod (16) and a shock-absorbing spring (18), wherein the fixed end of the telescopic rod (16) is fixed at the top end of the shock-resistant fixing plate (17), the telescopic end of the telescopic rod is connected to the bottom end of the shock-resistant steel plate (3), and the shock-absorbing spring (18) is sleeved on the side face of the telescopic rod (16);

the distance between the top end of the screen box (41) and the impact-resistant steel plate (3) is less than 0.5 m;

still include connecting rod (15), connecting rod (15) are equipped with two, and it is located between two sieve (11), and its both ends are connected with two fixing bases (42) that correspond around respectively.