CN214357930U

CN214357930U - Suspension type spiral flat storehouse cleaning machine and flat bottom storehouse

Info

Publication number: CN214357930U
Application number: CN202023176806.6U
Authority: CN
Inventors: 祖珂
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-10-08
Anticipated expiration: 2030-12-25

Abstract

The utility model provides a suspension type spiral flat bin clearing machine and a flat bottom bin, belonging to the technical field of storage machinery, wherein the suspension type spiral flat bin clearing machine is arranged in the flat bottom bin and comprises an explosion-proof electric hoist, an electric hoist track, a spiral conveyor hanger, a double-spiral conveyor, an anti-swing frame and an anti-swing beam; the electric hoist rail is an annular rail and is arranged at the top of the barrel; the explosion-proof electric hoist is arranged on the electric hoist track; the spiral conveyor hanger is connected with the anti-swing frame, is positioned below the electric hoist track, is provided with movable pulleys, and is respectively connected with the two groups of anti-explosion electric hoists through the movable pulleys and the steel wire ropes; the double-screw conveyor is fixed below the hanging bracket of the double-screw conveyor; the outer end of the swing-proof frame is rotatably provided with an anti-collision wheel; the anti-swing beam is arranged at the outer end of the spiral conveyor hanger, and anti-collision wheels are rotatably arranged at the two ends of the anti-swing beam. Above-mentioned suspension type spiral flat storehouse cleaning machine and flat storehouse has realized the integration of flat storehouse cleaning, has effectively promoted the development in flat storehouse.

Description

Suspension type spiral flat storehouse cleaning machine and flat bottom storehouse

Technical Field

The utility model belongs to the technical field of storage machinery, a suspension type spiral flat storehouse cleaning machine and flat bottom storehouse is specifically disclosed.

Background

The flat-bottom silo (namely, the flat-bottom silo) is arranged between the cone bucket type silo and the circular stock ground, the mode of the flat-bottom silo is similar to that of the reduced circular stock ground, but the unit storage capacity and the occupied area of the flat-bottom silo are superior to those of the cone bucket type silo and the circular stock ground, the flat-bottom silo has the advantages of environmental protection, energy conservation and investment saving, belongs to an environment-friendly storage mode under the condition of great promotion of environmental protection at present, and is applicable to bulk storage industries such as coal, grain, building materials, cement, chemical engineering and the like.

Coal storage is different from other bulk materials such as grains and cement, and is determined by the special properties of coal, and the coal storage technology is the most complex and difficult, such as: the particles are different in size and uneven in granularity; the raw coal is filled with coal gangue, so that the hardness is higher; contains harmful chemical components of sulfur, and corrodes steel; containing moisture to rust the equipment; poor flowability; coal has spontaneous combustion property, and is easy to generate spontaneous combustion; the coal contains methane gas and dust, is easy to cause explosion and the like, and is easy to form plates and arch after being pressed in a coal bunker; the working environment in the coal bunker is very harsh.

When the coal is stored, because the flat-bottom bin has no coal sliding angle, the discharging is difficult, dead coal easily exists at the bottom of the bin, the coal cannot be fed in first and first out like a cone hopper bin, and the dead coal is easy to form plates if the dead coal is stored for a long time, so that spontaneous combustion is easily caused. The existing method is widely used for feeding in a cylindrical silo in a point-type and line-type distribution mode, so that the upper part of the cylindrical silo is provided with more devices, the filling rate is insufficient, the utilization rate of the upper part of the cylindrical silo is reduced, the energy is wasted, the civil engineering structure is complex, and the investment is wasted. Therefore, the flat bin emptying machine matched with the flat-bottom bin is the most critical ring for the flat-bottom bin, and the performance of the flat-bottom bin emptying machine directly restricts the development of the flat-bottom bin.

SUMMERY OF THE UTILITY MODEL

The utility model discloses use storage coal as the design object, provide a suspension type spiral flat storehouse cleaning machine and flat storehouse, realized the integration of flat storehouse cleaning, effectively promoted the development in flat storehouse.

In order to achieve the purpose, the utility model provides a suspension type spiral flat bin clearing machine which is arranged in a flat bottom bin and comprises an explosion-proof electric hoist, an electric hoist track, a spiral conveyor hanger, a double-spiral conveyor, an anti-swing frame and an anti-swing beam; the electric hoist rail is an annular rail and is arranged at the top of the barrel; the explosion-proof electric hoist is arranged on the electric hoist track; the spiral conveyor hanger and the anti-swing frame are symmetrically connected by taking the central axis of the cylinder as a symmetry axis, are positioned below the track of the electric block, are provided with movable pulleys, and are respectively connected with the two groups of anti-explosion electric blocks through the movable pulleys and steel wire ropes wound on the movable pulleys; the double-screw conveyor is fixed below the hanging bracket of the double-screw conveyor; the outer end of the swing-proof frame is rotatably provided with an anti-collision wheel which is used for contacting with the barrel body; the anti-swing beam is arranged at the outer end of the spiral conveyor hanger and is of a T-shaped structure with the spiral conveyor hanger, and anti-collision wheels are rotatably arranged at two ends of the anti-swing beam.

Furthermore, a fixed platform connected with the steel structure roof is arranged at the circle center of the electric hoist track; the top of the fixed platform is provided with a power supply explosion-proof slip ring, and the bottom of the fixed platform is connected with the rotary platform through a rotary support; the cable drum is installed on the rotary platform and connected with the power supply explosion-proof slip ring, and the cable is led out from the cable drum and connected with an explosion-proof driving device of the double-screw conveyor.

Furthermore, the double-helix conveyor is driven by a speed reducing motor with a single input shaft and double output shafts, and the speed reducing motor is arranged close to the inner end of the hanger of the double-helix conveyor.

Further, prevent the swing span and include the anticollision wheel installation roof beam that uses screw conveyer gallows to set up as symmetry axis symmetry and connect the multiunit tie-beam of two sets of anticollision wheel installation roof beams, the outer end at anticollision wheel installation roof beam is installed in the rotation of anticollision wheel.

Furthermore, the outer ends of the spiral conveyor hanger and the anti-swing frame are provided with unloading devices, and the unloading devices are used for bearing the whole weight of the suspended spiral leveling bin cleaning machine in standby so as to enable the steel wire rope to be in a loose state; the anti-collision wheel is a solid rubber wheel.

The utility model also provides a flat bottom bin, which comprises a bin foundation, a barrel arranged on the bin foundation, a steel structure roof arranged on the barrel and the suspension type spiral flat bin cleaner; the cylinder body adopts reinforced concrete, pretension reinforced concrete and steel plate structures; the steel structure roof adopts steel, membrane structure and various steel plate structure.

Furthermore, a discharging equipment chamber is arranged on the bin foundation along the diameter direction of the barrel; the top of the discharging equipment chamber is provided with a plurality of coal discharging ditches which are inclined inwards, a two-gas flat plate gate is arranged between the bottom of each coal discharging ditch and the top of the discharging equipment chamber, a discharging rubber belt conveyor used for conveying materials to the outside of the flat bottom chamber is arranged below each coal discharging ditch, and air or nitrogen serves as a gas source for the two-gas flat plate gate.

Further, the flat-bottom bin also comprises a vertical staircase arranged along the outer walls of the bin foundation, the barrel and the steel structure roof; an upper bin rubber belt conveyor guide rail and a V-shaped guide rail are arranged on the steel structure roof along the diameter direction; a movable upper bin rubber belt conveyor is arranged on the guide rail of the upper bin rubber belt conveyor; the movable upper-bin rubber belt conveyor comprises an unloading roller, a rack rail stepping driving device, a telescopic damping carrier roller group, a vertical fixed belt storage bin, a vertical movable belt storage bin, a vertical belt storage bin guide rail and a vertical belt storage bin boosting winch, wherein the telescopic damping carrier roller group is connected with the unloading roller and the rack rail stepping driving device; the bottom of the unloading roller is provided with a travelling wheel matched with the guide rail of the upper bin rubber belt conveyor; the toothed rail stepping driving device is arranged at the top of the vertical staircase; a carrier roller of the telescopic damping carrier roller group is hinged on the roller frame and is matched with the V-shaped guide rail through an FR roller; the vertical fixed belt storage bin is arranged in the vertical staircase and is positioned below the driving device; the vertical belt storage bin guide rails are arranged along the vertical stairwell; the vertical moving tape storage bin is matched with a vertical tape storage bin guide rail in a rolling way; the vertical belt storage bin force-increasing winch is connected with the bottom of the vertical moving belt storage bin and is used for realizing the lifting of the vertical moving belt storage bin.

Further, a bidirectional axial flow fan is arranged on the steel structure roof; the bottom of the vertical staircase is provided with an air source system which provides air sources for the two air flat gates, and the air source system is provided with an explosion-proof and anti-combustion nitrogen-making device.

Further, the steel structure roof of a plurality of flat storehouse communicates with each other and constitutes many storehouses group, and the top of adjacent barrel is provided with overhauls the platform, and many storehouses group share a set of vertical stairwell, go up storehouse rubber belt conveyor guide rail, V type guide rail and portable storehouse rubber belt conveyor.

The utility model has the advantages of it is following:

1. the design concept of three-dimensional flat bin clearing is adopted in the design of the flat bottom bin, the rotation is realized through the explosion-proof electric hoist and the annular electric hoist track, the lifting is realized through the explosion-proof electric hoist, the fixed pulley and the steel wire rope, the anti-swing is realized through the anti-swing frames, the anti-swing beams and the anti-collision wheels at the two ends of the spiral conveyor hanger, and the anti-swing frames and the anti-swing beams are both in the wall supporting type, so that the rigidity is better, and the anti-swing effect is better;

2. the forward and reverse rotating bin leveling and bin cleaning of the double-screw conveyor are utilized, so that the whole equipment has two purposes (bin allocation and bin cleaning), the working mode is to take off coal from top to bottom, the heavy load, corrosion and pollution of the coal are avoided, and meanwhile, the kinetic energy is saved; when the bin is filled, the double-screw conveyor is in a standby state, and only when the coal bin is filled, the bin leveling operation is carried out, so that dead corners on the bin are filled, the filling rate is improved, and the starting time is shortened; when the coal flows are discharged, the double-screw conveyor is in a standby state, and the coal flow is started to clean the coal flow only when the kinetic energy of the coal flow is lost, so that the starting time is shortened, and the energy is saved; the double-screw machine drive adopts a single-in double-out speed reducing motor to change two sets of drive systems into one set of drive system, so that the weight of the double-screw machine is reduced;

3. the steel structure roof and the suspension type spiral flat bin clearing machine are combined into a whole, the feeding part of the movable rubber belt conveyor and the power supply part of the explosion-proof electric hoist are designed on the steel structure roof, the belt storage part of the movable rubber belt conveyor is designed in a vertical staircase, the steel structure roof is a roof and an equipment layer and replaces a fixed frame of the suspension type spiral flat bin clearing machine, three functions are combined into a whole, the height of a silo is reduced, the diameter of the barrel is 30 meters, and under the same bin capacity, the height of the barrel of the flat bin is reduced by nearly 20 meters compared with that of a conical hopper bin, and the energy consumption for improving the height of 20 meters is saved;

4. equipment under the storehouse: the ditch type discharging mode is adopted, so that the problems of coal bunker arching and small discharging amount are solved, and the requirement of port coal wharf for large-capacity ship loading can be met; the two-gas flat gate shared by air and nitrogen can meet the storage requirements of various coal types, the two-gas flat gate automatically slides into the scraper conveyor by the potential energy of coal after being opened, the scraper conveyor does not need to be started up like a coal feeder, the pneumatic gate is simple to control, saves energy and has low manufacturing cost, the equipment investment under the bin is greatly reduced, and the nitrogen is used as a gas source, so that the storage problem of the coal types easy to spontaneously combust is improved, and the safety of a storage system is improved; taking the cylinder diameter of 30 meters as an example, 16 coal feeders are needed under the cone bucket type silo, the price of the needed equipment is estimated to be 240 thousands according to the price of the first belt type coal feeder, while the flat bottom silo provided by the utility model only needs 7 flat gate discharging materials, and the price of the air source system equipment provided with the explosion-proof and flame-proof nitrogen making device is 35 thousands;

5. the bidirectional ventilation system on the coal bunker is designed, so that the ventilation effect on the upper part of the coal bunker is better, and the problems that residual gas and coal dust on the upper part of the coal bunker are flammable and explosive are solved;

6. the modular and serialized design mode of the flat-bottom bins is adopted, and the number of the flat-bottom bins is increased or reduced in the design work, so that the workload of designers is reduced, and the work efficiency of the designers is improved;

7. the whole set of equipment has the functions of dust prevention and explosion prevention, saves occupied land, saves energy, is simple to manufacture, simplifies the civil engineering quantity under the upper (roof) and lower (foundation) large-diameter cylindrical silos, greatly reduces the capital construction investment, improves the possibility of popularization and utilization of the large-diameter floor flat-bottom cylindrical silos, and has good economic benefit, environmental protection benefit and social benefit; can be used for: the device comprises a port coal dock, a port grain dock, a large coal storage yard, a coal blending center, a coal delivery station, a coal mine, a coal preparation plant, a power plant, a steel plant, a cement plant and other cylindrical silos, and can be used for flat silo emptying for storing solid bulk materials such as coal, grains, cement and the like.

Drawings

FIG. 1 is a front view of a plurality of flat-bottom bins connected together;

FIG. 2 is an enlarged top view of the flat bottom bin;

FIG. 3 is a left side view of FIG. 1;

fig. 4 is a top view of fig. 1.

In the figure: 1-explosion-proof electric hoist; 2-electric hoist rail; 3-a screw conveyor hanger; 4-a double screw conveyor; 5-anti-swing frame; 6-anti-swing beam; 7-a movable pulley; 8-a steel wire rope; 9-anti-collision wheels; 10-a fixed platform; 11-power supply explosion-proof slip ring; 12-a slewing bearing; 13-a rotating platform; 14-a cable drum; 15-an unloading device; 101-a cylinder body; 102-steel structure roof; 103-bin basis; 104-a discharge equipment chamber; 105-a coal unloading ditch; 106-second air flat plate gate; 107-discharging rubber belt conveyor; 108-vertical stairwell; 109-feeding rubber belt conveyor guide rails; a 110-V shaped guide rail; 111-unloading the drum; 112-rack stepping drive; 113-a set of retractable shock absorbing idler rollers; 114-vertically fixing the tape storage bin; 115-vertically moving the tape storage bin; 116-vertical belt magazine guide; 117-vertical belt storage bin force increasing winch; 118-road wheels; 119-FR roller; 120-bidirectional axial flow fan; 121-an explosion-proof and flame-proof nitrogen making device; 122-a service platform; 201-bunker allocation coal line; 202-self-retained coal line; 203-dead coal position line.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment provides a suspended spiral flat bin clearing machine which is arranged in a flat bottom bin and comprises an explosion-proof electric hoist 1, an electric hoist track 2, a spiral conveyor hanging bracket 3, a double-spiral conveyor 4, an anti-swing frame 5 and an anti-swing beam 6; the electric hoist rail 2 is an annular rail and is arranged at the top of the cylinder body 101; the explosion-proof electric hoist 1 is arranged on the electric hoist track 2; the spiral conveyor hanger 3 and the anti-swing frame 5 are symmetrically connected by taking the central axis of the cylinder 101 as a symmetry axis, are positioned below the electric hoist track 2 and are respectively provided with a movable pulley 7, and are respectively connected with the two groups of anti-explosion electric hoists 1 through the movable pulley 7 and a steel wire rope 8 wound on the movable pulley 7; the double-helix conveyor 4 is fixed below the spiral conveyor hanger 3; the outer end of the swing-proof frame 5 is rotatably provided with an anti-collision wheel 9 which is used for contacting with the barrel 101; the anti-swing beam 6 is arranged at the outer end of the spiral conveyor hanging bracket 3, is of a T-shaped structure with the spiral conveyor hanging bracket 3, and is provided with anti-collision wheels 9 at two ends in a rotating mode.

Further, a fixed platform 10 connected with the steel structure roof 102 is arranged at the center of the electric hoist track 2; the top of the fixed platform 10 is provided with a power supply anti-explosion slip ring 11, and the bottom of the fixed platform is connected with a rotary platform 13 through a rotary support 12; a cable drum 14 is installed on the rotary platform 13, the cable drum 14 is connected with the power supply explosion-proof slip ring 11, and a cable is led out from the cable drum 14 and is connected with an explosion-proof driving device of the double-helix conveyor 4, so that the control of the explosion-proof driving device of the double-helix conveyor is realized.

Further, the double-helix conveyor 4 is driven by a speed reducing motor with a single input shaft and double output shafts, and the speed reducing motor is arranged close to the inner end of the spiral conveyor hanger 3.

Further, prevent that swing span 5 includes the anticollision wheel installation roof beam that uses screw conveyer gallows 3 to set up as symmetry axis symmetry and connect the multiunit tie-beam of two sets of anticollision wheel installation roof beams, and anticollision wheel 9 rotates the outer end of installing at anticollision wheel installation roof beam.

Further, the outer ends of the spiral conveyor hanger 3 and the swing-proof frame 5 are provided with unloading devices 15, the unloading devices 15 are hook-shaped structures and are used for hooking the tops of the barrel bodies 101, standby unloading of the spiral conveyor hanger 3 and the swing-proof frame 5 is achieved, the explosion-proof electric hoist 1 is prevented from being in a working state all the time, and energy consumption is reduced; the anti-collision wheel 9 is a solid rubber wheel.

The embodiment also provides a flat bottom bin, which comprises a bin foundation 103, a cylinder 101 arranged on the bin foundation 103, a steel structure roof 102 arranged on the cylinder 101 and the suspension type spiral flat bin emptying machine. The cylinder body 101 is of a reinforced concrete, pre-tension reinforced concrete and steel plate structure, the cylinder body is a straight cylinder section, and the reinforced concrete can slide to the top once in slip form construction; the steel plate structure construction can realize in-plant processing field installation, so that the construction process is simplified, and the construction period is shortened; the funnel section is eliminated, the whole load of the cylindrical bin is changed from circumferential stress to circular plane stress, the dead weight of the bin body foundation on the unit surface is reduced, the unit bearing capacity of the foundation is reduced, the depth of the foundation is reduced, and the foundation treatment cost is greatly reduced. The steel structure roof 102 adopts a steel, film structure and a color steel plate structure, and the steel structure roof truss is also used as equipment layers such as a warehousing adhesive tape conveyor, a monitoring sensor, a thermal imager, various sensors and the like, so that the whole steel structure roof truss can be assembled and constructed in the air, and the construction difficulty is reduced; the film structure has the characteristics of light weight, flame retardance, self-cleaning, light transmission and the like, and facilities such as an explosion-proof cover and the like are omitted; the height of the warehouse is reduced, the load of the whole roof is reduced, and the investment is saved.

Further, a discharging equipment chamber 104 is arranged on the bin foundation 103 along the diameter direction of the barrel; the top of the discharging equipment chamber 104 is provided with a plurality of coal discharging ditches 105 which are inclined inwards, a two-gas flat plate gate 106 is arranged between the bottom of each coal discharging ditch 105 and the top of the discharging equipment chamber 104, a discharging rubber belt conveyor 107 used for conveying materials to the outside of the flat bottom chamber is arranged below each coal discharging ditch 105, and air or nitrogen is used as a gas source for the two-gas flat plate gate 106.

Further, the flat-bottom bin also comprises a vertical staircase 108 arranged along the outer walls of the bin foundation 103, the barrel 101 and the steel structure roof 102; an upper bin rubber belt conveyor guide rail 109 and a V-shaped guide rail 110 are arranged on the steel structure roof 103 along the diameter direction; a movable upper bin rubber belt conveyor is arranged on the guide rail 109 of the upper bin rubber belt conveyor; the movable upper-bin rubber belt conveyor is an existing product, can realize the adjustment of the length of a conveyor belt, and comprises an unloading roller 111, a toothed rail stepping driving device 112, a telescopic damping carrier roller group 113 connecting the unloading roller 111 and the toothed rail stepping driving device 112, a vertical fixed belt storage bin 114, a vertical movable belt storage bin 115, a vertical belt storage bin guide rail 116 and a vertical belt storage bin boosting winch 117; the bottom of the unloading roller 111 is provided with a travelling wheel 118 matched with the guide rail 109 of the upper-bin rubber belt conveyor; a rack stepping drive 112 is provided at the top of the vertical stairwell 108; the carrier roller of the telescopic shock-absorbing carrier roller group 113 is hinged on the roller frame and is matched with the V-shaped guide rail 110 through an FR roller 119; a vertical stationary magazine 114 is disposed within the vertical stairwell 108 below the drive 112; vertical magazine rails 116 are disposed along the vertical stairwell 108 and below the vertical stationary magazine 114; the vertically moving tape storage magazine 115 is in rolling fit with a vertical tape storage magazine guide 116; the vertical belt storage bin force-increasing winch 117 is connected with the bottom of the vertical moving belt storage bin 115 and is used for realizing the lifting of the vertical moving belt storage bin 115; the vertically moving belt storage bin 115 and the vertical belt storage bin guide rail 116 are used for storing the rubber belt of the conveyor.

Further, a bidirectional axial flow fan 120 is arranged on the steel structure roof 102; the bottom of the vertical staircase 108 is provided with an air supply system for providing air supply for the two air flat gates 106, and the air supply system is provided with an explosion-proof and flame-proof nitrogen generator 121.

Further, the steel structure roof 102 of a plurality of flat bottom bins are communicated to form a plurality of bin groups, the top of the adjacent barrel 101 is provided with an overhaul platform 122, and the plurality of bin groups share one group of vertical staircases 108, upper bin rubber belt conveyor guide rails 109, V-shaped guide rails 110 and a mobile upper bin rubber belt conveyor.

The operation of the flat-bottom bin described above is as follows.

When loading into a bin: the suspension type spiral flat bin clearing machine does not need to start (save energy) on the coal allocation line 201, the ground coal is only discharged into the bin by the movable type upper bin rubber belt conveyor, when the coal level rises to reach the self-remaining coal line 202, the double-spiral conveyor 4 of the suspension type spiral flat bin clearing machine is reversely started, the explosion-proof electric hoist 1 rotates at a low speed to allocate the coal at the center of the bin to the periphery of the bin, the bin is filled, and the suspension type spiral machine returns to the in-situ discharging device 15 to be hooked at the top of the barrel 101 for discharging and standby.

When clearing the warehouse: when the coal in the bunker reaches the dead coal position line 203, when no flowing capacity exists, the explosion-proof electric hoist 1 is used for lowering the double-screw conveyor 4 to dead coal, the double-screw conveyor 4 is started to rotate in the forward direction, the explosion-proof electric hoist 1 is matched with the double-screw conveyor 4 to work to push the dead coal around the bunker to the coal unloading ditch 105 in the middle of the bunker, the two-gas flat plate gate 106 in the discharging equipment chamber 104 is opened, and the coal is unloaded from the coal unloading ditch 105 and flows to the discharging transportation device 107 (such as a scraper conveyor or a belt conveyor) to be transported out of the bunker. Along with the reduction of the coal level, the explosion-proof electric block 1 is slowly lowered and rotates at a low speed (the rope winding speed and the walking speed of the explosion-proof electric block 1 are adjustable), the rubber anti-collision wheels 9 support the barrel 101 to complete the radial movement and collision of the double-screw conveyor 4, the blades of the double-screw conveyor have the functions of arch breaking and knot breaking, and dead coal is pushed out of the bin layer by layer until the bottom of the bin is cleaned up. The double-screw conveyor 4 is stopped, the double-screw conveyor 4 is lifted to a high position by the explosion-proof electric hoist 1, and the explosion-proof electric hoist 1 is unloaded, stopped and subjected to next circulation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A suspension type spiral flat bin clearing machine is characterized by being arranged in a flat bottom bin and comprising an explosion-proof electric hoist, an electric hoist track, a spiral conveyor hanging bracket, a double-spiral conveyor, an anti-swing frame and an anti-swing beam;

the electric hoist rail is an annular rail and is arranged at the top of the barrel;

the explosion-proof electric hoist is arranged on the electric hoist rail;

the spiral conveyor hanger and the anti-swing frame are symmetrically connected by taking the central axis of the cylinder as a symmetry axis, are positioned below the track of the electric block, are provided with movable pulleys, and are respectively connected with the two groups of anti-explosion electric blocks through the movable pulleys and steel wire ropes wound on the movable pulleys;

the double-spiral conveyor is fixed below the spiral conveyor hanger;

the outer end of the swing-proof frame is rotatably provided with an anti-collision wheel which is used for contacting with the barrel body;

the anti-swing beam is arranged at the outer end of the spiral conveyor hanging frame and is of a T-shaped structure with the spiral conveyor hanging frame, and anti-collision wheels are rotatably arranged at the two ends of the anti-swing beam.

2. The suspended spiral flat bin emptying machine according to claim 1, wherein a fixed platform connected with a steel structure roof is arranged at the center of the electric hoist track;

the top of the fixed platform is provided with a power supply explosion-proof slip ring, and the bottom of the fixed platform is connected with the rotary platform through a rotary support;

and a cable drum is arranged on the rotary platform, the cable drum is connected with the power supply explosion-proof slip ring, and a cable is led out from the cable drum and is connected with an explosion-proof driving device of the double-screw conveyor.

3. The suspended spiral flat-bin emptying machine according to claim 2, wherein the double-spiral conveyor is driven by a speed reduction motor with a single input shaft and a double output shaft, and the speed reduction motor is arranged near the inner end of the hanging frame of the spiral conveyor.

4. The suspended spiral flat-bin emptying machine according to claim 3, wherein the anti-swing frame comprises anti-collision wheel mounting beams symmetrically arranged by taking the spiral conveyor hanging frame as a symmetry axis and a plurality of groups of connecting beams for connecting two groups of anti-collision wheel mounting beams, and the anti-collision wheels are rotatably mounted at the outer ends of the anti-collision wheel mounting beams.

5. The suspended spiral flat bin emptying machine as claimed in claim 4, wherein the outer ends of the spiral conveyor hanger and the anti-swing frame are provided with unloading devices, and the unloading devices are used for hooking the top of the barrel;

the anti-collision wheel is a solid rubber wheel.

6. A flat-bottom bin, which is characterized by comprising a bin foundation, a barrel arranged on the bin foundation, a steel structure roof arranged on the barrel and a suspension type spiral flat bin emptying machine according to any one of claims 1 to 5;

the cylinder body adopts reinforced concrete, pretension reinforced concrete and steel plate structures;

the steel structure roof adopts steel, membrane structure and various steel plate structure.

7. The flat-bottom bin according to claim 6 wherein said bin base is provided with an out-feed equipment chamber along the diameter of the barrel;

the top of the discharging equipment chamber is provided with a plurality of coal discharging ditches which are inclined inwards, two-gas flat plate gates are arranged between the bottom of each coal discharging ditch and the top of the discharging equipment chamber, a discharging rubber belt conveyor used for conveying materials to the outside of the flat-bottom chamber is arranged below each coal discharging ditch, and air or nitrogen serves as an air source for the two-gas flat plate gates.

8. The flat-bottom bin according to claim 7 further comprising vertical stairwells disposed along the exterior walls of the bin base, the barrel and the steel structural roof;

an upper bin rubber belt conveyor guide rail and a V-shaped guide rail are arranged on the steel structure roof along the diameter direction;

a movable upper bin rubber belt conveyor is mounted on the upper bin rubber belt conveyor guide rail;

the movable upper-bin rubber belt conveyor comprises an unloading roller, a rack rail stepping driving device, a telescopic damping carrier roller group, a vertical fixed belt storage bin, a vertical movable belt storage bin, a vertical belt storage bin guide rail and a vertical belt storage bin boosting winch, wherein the telescopic damping carrier roller group is connected with the unloading roller and the rack rail stepping driving device;

the bottom of the unloading roller is provided with a travelling wheel matched with a guide rail of the upper bin rubber belt conveyor;

the rack stepping driving device is arranged at the top of the vertical staircase;

the carrier roller of the telescopic damping carrier roller group is hinged on the roller frame and matched with the V-shaped guide rail through an FR roller;

the vertical fixed belt storage bin is arranged in the vertical staircase and is positioned below the driving device;

the vertical belt storage bin guide rails are arranged along the vertical staircase and are positioned below the vertical fixed belt storage bins;

the vertical moving tape storage bin is in rolling fit with a vertical tape storage bin guide rail;

the vertical belt storage bin force-increasing winch is connected with the bottom of the vertical moving belt storage bin and used for realizing the lifting of the vertical moving belt storage bin.

9. The flat-bottom bin according to claim 8 wherein a bi-directional axial flow fan is provided on the steel structural roof;

the bottom of the vertical staircase is provided with an air source system which provides air sources for the two air flat gates, and the air source system is provided with an explosion-proof and anti-combustion nitrogen-making device.

10. The flat-bottom bin according to claim 9, wherein steel structure roofs of a plurality of flat-bottom bins are communicated to form a multi-bin group, the tops of adjacent cylinders are provided with an inspection platform, and the multi-bin group shares a group of vertical staircases, upper bin rubber belt conveyor guide rails, V-shaped guide rails and a mobile upper bin rubber belt conveyor.