CN114588993A

CN114588993A - Portable tank dry-process sand making machine

Info

Publication number: CN114588993A
Application number: CN202210300010.1A
Authority: CN
Inventors: 申青林; 申学敏; 申泽辉; 申学斌
Original assignee: Linfen Xinrui Machinery Equipment Co ltd
Current assignee: Linfen Xinrui Machinery Equipment Co ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-06-07

Abstract

The invention relates to a tank sand making machine, which belongs to the technical field of sand making equipment and particularly comprises a fixed shell arranged on a crawler chassis through a support, a sand making machine arranged on the fixed shell, a vertical elevator arranged at the rear part of the fixed shell, a top discharge port of the vertical elevator connected with a top feed hopper of the sand making machine through a chute, an automatic feeding device arranged on the bottom feed hopper of the vertical elevator, a spiral conveyor arranged on the crawler chassis through a bracket, a discharge port extending to the front end of the fixed shell, a feed hopper of the spiral conveyor connected with a sand outlet at the bottom of the sand making machine, a stone outlet of the sand making machine connected with a stone outlet of the vertical elevator through a connecting conduit, the sand making machine, the vertical elevator, the spiral conveyor and the crawler chassis respectively connected with a controller, the structure is simple, the use is convenient, the sand making efficiency can be greatly improved, the device can move freely on the site of raw materials, integrates the functions of collecting materials, feeding, crushing, dedusting and sand making, and has small volume.

Description

Portable tank dry-process sand making machine

Technical Field

The invention relates to a mobile tank dry-method sand making machine, and belongs to the technical field of sand making equipment.

Background

The machine-made sand is sand which is formed by roughly breaking stone and processing the stone by other sand making equipment, and for the purpose that a finished product is more regular, the machine-made sand can be processed into sands with different rules and sizes according to different process requirements, and can better meet daily requirements of buildings. The raw materials for the machine-made sand are various, and generally, granite, basalt, cobble, limestone, quartz stone, sandstone, slag and the like are available. Particularly, 3mm-10mm stones crushed by the crusher have the advantages of small market consumption, low utilization rate, small granularity, difficult crushing and high crushing difficulty. At present, hammer crushing or double-roller type crushers are mainly adopted in the market, but due to the fact that the powder is large, the crushing forming degree is not good, the quality is poor, and the sand made from the sand stones of the type is difficult to reach the standard. Therefore, a novel sand making machine is urgently needed to be developed to solve the problems of difficult crushing and difficult forming of 3mm-10mm stones.

The existing sand making machine mainly adopts a fixed installation structure, for example, the invention patent with the patent number of 202110179597.0 and the patent name of multifunctional dust-free screening sand making machine has the advantages of large installation and arrangement floor area, large field planning, civil engineering construction and infrastructure before installation, high early-stage investment cost, complex equipment installation process and longer consumed time. And when needs remove, need dismantle various equipment and rearrange, the infrastructure of building in earlier stage needs to be demolishd again, and the operation is very complicated, and a large amount of manpower, materials and financial resources have been wasted in repeated construction, dismouting.

However, the conventional mobile sand making equipment, such as the mobile sand making station of patent No. 2016108346721, is substantially simple in transfer transportation by using a pneumatic transport, and cannot realize mobile sand making on a raw material site. And the sand washing device is a traditional sand washing device, a large amount of water is needed in the sand making process, and waste of water resources and environmental pollution can be caused.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides the movable tank dry-method sand making machine which is simple in structure, convenient to use, capable of greatly improving the sand making efficiency, capable of freely moving on a raw material site, integrating material collection, feeding, crushing, dust removal and sand making into a whole and small in size.

In order to achieve the purpose, the technical scheme adopted by the invention is that the mobile tank dry-process sand making machine comprises a traveling device, an aggregate device, a feeding device, a sand making machine, a discharging device and a control system, wherein the traveling device is an electric drive crawler chassis, a fixed shell is arranged on the electric drive crawler chassis through a support, the sand making machine is arranged on the fixed shell, a raw material bin and the feeding device are arranged at the rear part of the fixed shell, the feeding device is a vertical type lifting machine, the feeding device is positioned in the raw material bin and is fixedly connected on the fixed shell, a top discharging port of the feeding device is connected with a top feeding hopper of the sand making machine through a first chute, the aggregate device is arranged on the raw material bin, the discharging device is also arranged on the electric drive crawler chassis through a support, and the discharging device is an obliquely arranged screw conveyor, and the discharge gate extends to the front end of fixed shell, screw conveyer's feeder hopper is connected with system sand machine bottom sand outlet, the inclined screen is installed to system sand machine's large granule export bottom, the inclined screen is located the top of screw conveyer's feeder hopper, the inclined screen is connected with the second chute, the second chute is connected with raw materials storehouse, running gear, the device that gathers materials, loading attachment, system sand machine, discharging device are connected with control system respectively, control system installs the lateral part at fixed shell.

Preferably, the sand making machine comprises an annular shell, an upper conical shell and a lower conical shell, the top and the bottom of the annular shell are respectively provided with the upper conical shell and the lower conical shell, the annular shell, the upper conical shell and the lower conical shell form a closed shell, the bottom of the lower conical shell is arranged on an electrically-driven crawler chassis through supporting legs, the top of the upper conical shell is provided with a feeding hopper, the bottom of the lower conical shell is provided with a lower connecting seat, the upper connecting seat is arranged on the upper portion of the lower conical shell, a shaft sleeve is arranged between the lower connecting seat and the upper connecting seat, a rotating shaft is arranged in the shaft sleeve, the bottom of the shaft sleeve is also provided with an end cover, the top of the shaft sleeve is also provided with a material distributing cone, the two ends of the rotating shaft are respectively arranged in the shaft sleeve through bearings, the bottom of the rotating shaft is connected with a driving motor through a belt, and the top of the rotating shaft is provided with a centrifugal cylinder, the centrifugal cylinder is located the below of feeder hopper, be provided with the discharge gate on the lower part circumference of centrifugal cylinder, it is corresponding with it, install the counterattack welt on the inner wall of annular shell, the bottom of toper shell is provided with the annular support board down, install toper branch material sieve between the top of annular support board and toper shell down, toper branch material sieve forms the ejection of compact chamber with between the toper shell down, the bottom in ejection of compact chamber is provided with sand outlet, the lower part of toper shell still is provided with the large granule export down.

Preferably, the upper part of the centrifugal cylinder is provided with an overflow disc, the center of the overflow disc is provided with a blanking port, four connecting plates are uniformly distributed on the overflow disc, and the connecting plates are fixed on the upper conical shell.

Preferably, an air outlet is further formed in the discharging cavity, a filter screen is mounted on the air outlet, and the air outlet is connected with the bag-type dust collector.

Preferably, the outside of the shaft sleeve is further provided with a protective sleeve, two ends of the protective sleeve are respectively installed on the lower connecting seat and the upper connecting seat, a lubricating channel is further arranged in the shaft sleeve and is communicated with a bearing installation cavity at the top of the shaft sleeve, and an oil inlet communicated with the lubricating channel and an oil outlet communicated with the inside of the shaft sleeve are formed in the end cover.

Preferably, the material collecting device comprises gear boxes, a chain plate conveyor arranged between the two gear boxes and a lifting control oil cylinder arranged at the bottom of the gear boxes, wherein a cylinder body of the lifting control oil cylinder is hinged to the raw material bin, a piston rod is hinged to the bottom of the gear boxes, a first gear, a second gear and a third gear are arranged in each gear box, the second gear is arranged between the first gear and the third gear and sequentially meshed with the first gear, the second gear and the third gear, a plurality of material stirring plates distributed in a radiation manner are respectively arranged on gear shafts of the first gear and the third gear, the material stirring plates are arranged on the gear boxes and distributed on two sides of the chain plate conveyor, a first bevel gear is arranged on the gear of the third gear, a second bevel gear is arranged on a main roller shaft of the chain plate conveyor and meshed with the first bevel gear, the main roller shaft of the chain plate conveyor is further connected with a material conveying motor through a chain, the material conveying motor is installed on a gear box, a control valve of a lifting control oil cylinder and the material conveying motor are respectively connected with a control system, and a material shovel is arranged at the front end of the gear box.

Preferably, still install automatic spray device in the screw conveyer, automatic spray device includes high-pressure water tank, auger delivery axle and subassembly of intaking, be provided with the water delivery passageway in the auger delivery axle, water delivery passageway one end is sealed, and the other end is installed and is blockked up, the epaxial hole for water spraying that is provided with of auger delivery, the subassembly of intaking is installed to the tip of auger delivery axle, the externally mounted of fixed shell has high-pressure water tank, high-pressure water tank's bottom is connected with the outlet pipe, the outlet pipe is connected with the subassembly of intaking, be provided with the control valve on the outlet pipe.

Preferably, the subassembly of intaking comprises the cover of intaking, pressure bearing and gland, the epaxial limit baffle that is provided with of auger delivery, the cover suit of intaking is epaxial at the auger delivery, just install pressure bearing between the one end of cover of intaking and the limit baffle, gland and pressure bearing are installed to the other end of cover of intaking, the middle part of cover of intaking is provided with annular intake chamber, be provided with the multichannel sealing washer between cover of intaking and the auger delivery axle, the sealing washer is located the both sides of annular intake chamber, the epaxial limbers that is provided with of auger delivery, annular intake chamber and water delivery passageway are connected respectively to the limbers, be provided with attach fitting on the wall body of cover of intaking, attach fitting is linked together with annular intake chamber, attach fitting is connected with the outlet pipe.

Compared with the prior art, the invention has the following technical effects: the crawler-type sand making machine is simple in structure and convenient to use, adopts a crawler-type moving structure, and the material collecting device, the material loading device, the sand making machine, the material discharging device and the control system are all fixed on the crawler base plate, and are moved, loaded and crushed simultaneously, so that the crawler-type sand making machine is more convenient and flexible to use, a fixed field is not needed, a digging machine or a loading machine is not needed for feeding, a large amount of water resources are not needed, civil construction and infrastructure are not needed, a raw material transportation link is omitted, and the whole process of moving sand making is completed on a raw material site. And adopt centrifugal crushing, gravity flow screening, with the straight formula dust removal of power, can realize a key start, automatically regulated, complete equipment area is little, easy operation need not the installation, falls to the ground and switches on the power and can produce, only needs alone can operate. The method is widely applicable to anhydrous sand making, movable sand making, mine restoration and the like of 3-10 mm stones, and is energy-saving and environment-friendly.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of a sand making machine according to the present invention.

FIG. 3 is a schematic view of the flash tray of the present invention.

Fig. 4 is a schematic structural view of the automatic feeding device of the present invention.

Fig. 5 is a schematic view of the structure of the belt conveyor of the present invention.

FIG. 6 is a schematic view showing the structure of the gear case of the present invention.

Fig. 7 is a schematic structural view of the water inlet assembly of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 and fig. 2, the mobile tank dry sand making machine comprises a traveling device 3, a material collecting device, a feeding device 2, a sand making machine 1, a discharging device 6 and a control system 25, wherein the traveling device 3 is an electrically driven crawler chassis, a fixed shell 4 is installed on the electrically driven crawler chassis through a support, the sand making machine 1 is installed on the fixed shell 4, a raw material bin 8 and the feeding device 2 are installed at the rear part of the fixed shell 4, the feeding device 2 is a vertical type elevator, the feeding device 2 is positioned in the raw material bin 8 and is fixedly connected on the fixed shell 4, a top discharging port of the feeding device 2 is connected with a top feeding hopper of the sand making machine 1 through a first chute 5, the raw material bin 8 is provided with the material collecting device, the electrically driven crawler chassis is also provided with the discharging device 6 through a support, the discharging device 6 is an obliquely arranged screw conveyor, and the discharging port extends to the front end of the fixed shell 4, screw conveyer's feeder hopper is connected with sand outlet in 1 bottom of system sand machine, inclined screen 9 is installed to the large granule export bottom of system sand machine 1, inclined screen 9 is located screw conveyer's feeder hopper's top, inclined screen 9 is connected with second chute 10, second chute 10 is connected with raw materials storehouse 8, running gear 3, the device that gathers materials, loading attachment 2, system sand machine 1, discharging device 6 is connected with control system 25 respectively, control system 25 installs the lateral part at fixed shell 4.

The sand making machine is arranged on a movable crawler chassis, and the crawler chassis is driven by electric power, so that the movement of the sand making machine can be realized. The vertical elevator is installed at the feeding end of the sand making machine, the screw conveyor is installed at the discharging end of the sand making machine, the vertical elevator can be used for feeding the sand making machine, and then crushed sand and stone are discharged through the screw conveyor after being crushed by the sand making machine. Install automatic feeding device on the vertical lifting machine, automatic feeding device can provide sufficient raw materials for the vertical lifting machine, and the raw materials passes through the vertical lifting machine and carries to the chute in, then gets into the system sand machine through the chute again, and the system sand machine carries out broken system sand to the raw materials, and the grit after the breakage passes through the screen cloth screening, and most qualified grit leaks to the sand outlet from the sieve mesh, directly gets into in screw conveyer's the feeder hopper, then carries to the blanking point through screw conveyer. Large granule material spills through the large granule export to fall on the inclined screen, carry out the secondary screening on the inclined screen, the material after the screening leaks to screw conveyer's feeder hopper, and the material that is not sieved gets into former feed bin through the second chute and carries out the system sand repeatedly. Carry out the secondary screening through setting up the inclined screen to the material like this, can improve grit output, reduce grit content in the building stones, avoid the repeated breakage of grit, improve crushing efficiency, also can reduce the dust that the breakage produced. When the automatic feeding device is used, the crawler chassis is controlled through the control cabinet and drives the sand making machine to move, so that the automatic feeding device of the vertical elevator continuously collects raw materials and conveys the raw materials to the sand making machine for crushing. Vertical elevator and first chute can be according to actual conditions adjustment installation angle, guarantee that the grit can be ejection of compact smoothly.

As shown in fig. 2, the sand making machine 1 comprises an annular shell 26, an upper conical shell 27 and a lower conical shell 28, wherein the top and the bottom of the annular shell 26 are respectively provided with the upper conical shell 27 and the lower conical shell 28, the annular shell 26, the upper conical shell 27 and the lower conical shell 28 form a closed shell, the bottom of the lower conical shell 28 is arranged on the crawler chassis 3 through supporting legs, the top of the upper conical shell 27 is provided with a feed hopper 29, the bottom of the lower conical shell 28 is provided with a lower connecting seat 30, the upper part of the lower conical shell 28 is provided with an upper connecting seat 32, a shaft sleeve 31 is arranged between the lower connecting seat 30 and the upper connecting seat 32, a rotating shaft 33 is arranged in the shaft sleeve 31, the bottom of the shaft sleeve 31 is also provided with an end cover 59, the top of the shaft sleeve 31 is also provided with a material distributing cone 56, two ends of the rotating shaft 33 are respectively arranged in the shaft sleeve 31 through bearings, the bottom of the rotating shaft 33 is connected with a driving motor 34 through a belt, the top of the rotating shaft 33 is provided with a centrifugal cylinder 35, the centrifugal cylinder 35 is positioned below the feed hopper, the circumference of the lower part of the centrifugal cylinder 35 is provided with a discharge port, correspondingly, the inner wall of the annular shell 26 is provided with a counterattack lining plate 36, the bottom of the lower conical shell 28 is provided with an annular supporting plate 37, a conical separation sieve 38 is arranged between the annular supporting plate 37 and the top of the lower conical shell 28, a discharge cavity 39 is formed between the conical separation sieve 38 and the lower conical shell 28, the bottom of the discharge cavity 39 is provided with a sand outlet 40, and the lower part of the lower conical shell 28 is also provided with a large particle outlet 41.

The sand making machine adopts a centrifugal crushing structure, utilizes centrifugal force to control materials to fly out along a centrifugal cylinder and impact on a counterattack lining plate for crushing. The material that vertical elevator carried gets into the system sand machine feeder hopper through first chute, and the feed inlet of system sand machine feeder hopper keeps concentric with the centrifuge bowl of system sand machine, can ensure that the even scattering of material is on the centrifuge bowl, makes the material throw away from the discharge gate of centrifuge bowl at a high speed to strike and accomplish the breakage on the counterattack welt of a week. The feed inlet and the centrifugal cylinder of the sand making machine are concentric, so that the material distribution is uniform, the partial abrasion of the centrifugal cylinder is prevented from being nonuniform, and the abrasion of the centrifugal cylinder is prevented from being nonuniform, so that the unbalance is caused. The counterattack lining plate is a main abrasion part and is cast by high complex gold, so that the abrasion resistance is good and the service life is long. After the wear-resistant lining plate is installed, the wear-resistant lining plate is a smooth arc surface, so that the phenomenon that materials are reflected to a centrifugal cylinder to cause the centrifugal cylinder to be worn too fast can be avoided, the impact angle and the force of the materials are also the same, the particle size of the materials is more uniform after the materials are crushed, the wear condition of the lining plate is the same, and the phenomenon that the local wear is too fast can be avoided. After the materials are impacted and crushed, the materials fall to the conical material-distributing sieve below the materials under the action of gravity. The sieve mesh of toper branch material sieve is perpendicular downwards, and is the same with the gravity direction, sets up the trafficability characteristic that can increase the material like this, lets qualified material directly fall. The upper end of the screen of the conical material separating screen is of a large diameter, the lower end of the screen is of a small diameter, and materials fall to the large-diameter end and flow to the small-diameter end along the conical inclined plane. Screening by a conical screen, and allowing most of qualified sand to leak from the screen holes to a sand outlet and enter a spiral conveyor. The large-particle materials automatically flow to the small-diameter tail end of the conical material separating sieve, and the large-particle materials enter the inclined sieve for secondary screening through the large-particle outlet. An air outlet is further formed in the discharging cavity 39, a filter screen is mounted on the air outlet, the air outlet is connected with a bag-type dust collector 45, and the bag-type dust collector is mounted on the crawler base plate. The bag-type dust collector can remove dust and reduce the field dust pollution. The conical material separating sieve adopts a round hole sieve, has good forming degree,

the shaft sleeve 31 is further provided with a protective sleeve 57 outside, two ends of the protective sleeve 57 are respectively mounted on the lower connecting seat 30 and the upper connecting seat 32, the shaft sleeve 31 is further internally provided with a lubricating channel 58, the lubricating channel 58 is communicated with a bearing mounting cavity at the top of the shaft sleeve 31, and an end cover 59 is provided with an oil inlet 60 communicated with the lubricating channel 58 and an oil outlet 61 communicated with the inside of the shaft sleeve. In order to ensure the lubrication of the rotating shaft and the bearing, a lubricating cavity is formed in the shaft sleeve, lubricating oil is injected through the oil inlet and the lubricating channel to lubricate the bearing and the rotating shaft in the shaft sleeve, and then oil is returned through the oil outlet to reduce the abrasion of the rotating shaft.

As shown in FIG. 3, an overflow tray 42 is installed on the upper portion of the centrifuge bowl 35, a blanking port 43 is installed in the center of the overflow tray 42, four connecting plates 44 are evenly installed on the overflow tray 42, and the connecting plates 44 are fixed on the upper conical shell 27. The overflow disc can buffer the material, avoids causing too big impact to the centrifuge bowl, also can carry out the secondary distribution to the material simultaneously, makes the material evenly fall on the centrifuge bowl through the blanking mouth. And when the material is too much, unnecessary material can also freely fall down through the periphery of the overflow disc, and the collision crushing is carried out on the material thrown out by the centrifugal cylinder, so that the crushing efficiency can be improved, and the condition that the centrifugal breaking is invalid due to the accumulation of the material can also be avoided.

As shown in fig. 4 to 6, the automatic feeding device includes gear boxes 46, a belt conveyer 47 installed between the two gear boxes 46, and a lift control cylinder 48 installed at the bottom of the gear boxes, wherein the cylinder body of the lift control cylinder 48 is hinged on the raw material bin 8, the piston rod is hinged at the bottom of the gear box 46, a first gear 49, a second gear 50 and a third gear 51 are installed in the gear box 46, the second gear 50 is located between the first gear 49 and the third gear 51, and the first gear 49, the second gear 50 and the third gear 51 are sequentially engaged with each other, a plurality of material-shifting plates 52 distributed in a radiation manner are respectively installed on the gear shafts of the first gear 49 and the third gear 51, the material-shifting plates 52 are located on the gear box 46 and distributed on both sides of the belt conveyer 47, a first bevel gear 53 is installed on the gear of the third gear 51, a second bevel gear 54 is installed on the main drum shaft of the belt conveyer 47, the first bevel gear 53 is engaged with the second bevel gear 54, the main roller shaft of the belt conveyor 47 is also connected with a material conveying motor 55 through a chain, the material conveying motor 55 is installed on the gear box 46, the control valve of the lifting control oil cylinder 48 and the material conveying motor are respectively connected with the control cabinet 25, and the front end of the gear box is provided with the material shovel 7.

The automatic feeding device is used for assisting in feeding, and when the material shoveling is carried out, the lifting control oil cylinder controls the gear box and the frame body of the belt conveyor to move downwards, so that the material shovels on the gear box are tightly attached to the bottom surface. When the crawler chassis moves, the conveying motor rotates to drive the belt conveyor and the material shifting plate to synchronously rotate. The material is constantly dialled to band conveyer under the effect of switch-board on, and band conveyer is with continuous transport to raw materials storehouse of material, and then perpendicular lifting machine promotes the material to system sand machine.

As shown in fig. 1 and 7, an automatic spraying device is further installed in the screw conveyor 6, the automatic spraying device includes a high-pressure water tank 11, a screw conveying shaft 12 and a water inlet assembly 13, a water conveying channel 14 is arranged in the screw conveying shaft 12, one end of the water conveying channel 14 is closed, a plug 15 is installed at the other end of the water conveying channel, a water spraying hole is formed in the screw conveying shaft 12, the water inlet assembly 13 is installed at the end of the screw conveying shaft 12, the high-pressure water tank 11 is installed outside the fixed shell 4, a water outlet pipe 17 is connected to the bottom of the high-pressure water tank 11, the water outlet pipe 17 is connected to the water inlet assembly 13, and a control valve 18 is arranged on the water outlet pipe 17. The spiral conveyer is matched with a spraying device which moves synchronously with the spiral conveyer. When the spraying device operates, a proper amount of water is sprayed into the sand, the water and the sand are mixed with moisture in the overturning process, after the moisture mixing, the dust flying in the discharging process can be reduced, meanwhile, the stone powder and the sand in the sand are uniformly mixed, the condition that large particles are exposed outside when materials are accumulated is avoided, the sand after the moisture mixing has clear particle shape and attractive appearance, and the effect of washing the sand can be achieved. Finally, the wet sand is lifted to a discharge port of a screw conveyor and discharged to a finished sand pile from the discharge port.

The water inlet assembly 13 comprises a water inlet sleeve 19, a pressure bearing 20 and a gland 21, a limit baffle 22 is arranged on the spiral conveying shaft 12, the water inlet sleeve 19 is sleeved on the spiral conveying shaft 12, the pressure bearing 20 is arranged between one end of the water inlet sleeve 19 and the limit baffle 22, the gland 21 and the pressure bearing 20 are arranged at the other end of the water inlet sleeve 19, an annular water inlet groove 62 is formed in the middle of the water inlet sleeve 19, a plurality of sealing rings 23 are arranged between the water inlet sleeve 19 and the spiral conveying shaft 12, the sealing rings 23 are located on two sides of the annular water inlet groove 62, a water through hole 24 is formed in the spiral conveying shaft 12, the water through hole 24 is respectively connected with the annular water inlet groove 62 and the water conveying channel 14, a connecting joint 16 is arranged on the wall body of the water inlet sleeve 19, the connecting joint 16 is communicated with the annular water inlet groove 62, and the connecting joint 16 is connected with the water outlet pipe 17. The subassembly of intaking mainly is when guaranteeing that the auger delivery axle rotates, can continuously supply water, and the outlet pipe is carried water to the water delivery passageway of auger delivery axle through the cover of intaking, then through the hole for water spraying blowout.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included therein.

Claims

1. Portable tank dry-process sand making machine, including running gear, the device that gathers materials, loading attachment, system sand machine, discharging device and control system, its characterized in that: the traveling device is an electric drive crawler chassis, a fixed shell is mounted on the electric drive crawler chassis through a support, a sand making machine is mounted on the fixed shell, a raw material bin and a feeding device are mounted at the rear part of the fixed shell, the feeding device is a vertical type elevator, the feeding device is positioned in the raw material bin and is fixedly connected onto the fixed shell, a top discharge port of the feeding device is connected with a top feed hopper of the sand making machine through a first chute, a material collecting device is mounted on the raw material bin, a discharging device is further mounted on the electric drive crawler chassis through a support, the discharging device is a spiral conveyor which is obliquely arranged, a discharge port extends to the front end of the fixed shell, the feed hopper of the spiral conveyor is connected with a sand outlet at the bottom of the sand making machine, an inclined screen is mounted at the bottom of a large-particle outlet of the sand making machine, and is positioned above the feed hopper of the spiral conveyor, the inclined screen is connected with a second chute, the second chute is connected with the raw material bin, the traveling device, the material collecting device, the feeding device, the sand making machine and the discharging device are respectively connected with the control system, and the control system is installed on the side portion of the fixed shell.

2. The mobile tank dry-method sand making machine according to claim 1, characterized in that: the sand making machine comprises an annular shell, an upper conical shell and a lower conical shell, wherein the upper conical shell and the lower conical shell are respectively installed at the top and the bottom of the annular shell, the upper conical shell and the lower conical shell form a closed shell, the bottom of the lower conical shell is installed on an electrically-driven crawler chassis through supporting legs, a feed hopper is arranged at the top of the upper conical shell, a lower connecting seat is installed at the bottom of the lower conical shell, an upper connecting seat is installed at the upper part of the lower conical shell, a shaft sleeve is installed between the lower connecting seat and the upper connecting seat, a rotating shaft is installed in the shaft sleeve, an end cover is further installed at the bottom of the shaft sleeve, a material distributing cone is further installed at the top of the shaft sleeve, two ends of the rotating shaft are respectively installed in the shaft sleeve through bearings, the bottom of the rotating shaft is connected with a driving motor through a belt, a centrifugal cylinder is installed at the top of the rotating shaft, the centrifugal cylinder is located the below of feeder hopper, be provided with the discharge gate on the lower part circumference of centrifugal cylinder, it is corresponding with it, install the counterattack welt on the inner wall of annular shell, the bottom of toper shell is provided with the annular support board down, install toper branch material sieve between the top of annular support board and toper shell down, toper branch material sieve forms the ejection of compact chamber with between the toper shell down, the bottom in ejection of compact chamber is provided with sand outlet, the lower part of toper shell still is provided with the large granule export down.

3. The portable tank dry-process sand making machine of claim 2, characterized in that: the centrifugal machine is characterized in that an overflow disc is mounted at the upper part of the centrifugal cylinder, a blanking port is arranged at the center of the overflow disc, four connecting plates are uniformly distributed on the overflow disc, and the connecting plates are fixed on the upper conical shell.

4. The portable tank dry-process sand making machine of claim 2, characterized in that: still be provided with the air outlet on the ejection of compact chamber, install the filter screen on the air outlet, the air outlet is connected with the sack cleaner.

5. The portable tank dry-process sand making machine of claim 2, characterized in that: the shaft sleeve is characterized in that a protective sleeve is further arranged outside the shaft sleeve, two ends of the protective sleeve are respectively mounted on the lower connecting seat and the upper connecting seat, a lubricating channel is further arranged in the shaft sleeve and is communicated with a bearing mounting cavity at the top of the shaft sleeve, and an oil inlet communicated with the lubricating channel and an oil outlet communicated with the inside of the shaft sleeve are formed in the end cover.

6. The mobile tank dry-method sand making machine according to claim 1, characterized in that: the material collecting device comprises a gear box, a chain plate conveyor arranged between the two gear boxes and a lifting control oil cylinder arranged at the bottom of the gear box, wherein a cylinder body of the lifting control oil cylinder is hinged to a raw material bin, a piston rod is hinged to the bottom of the gear box, a first gear, a second gear and a third gear are arranged in the gear box, the second gear is arranged between the first gear and the third gear and sequentially meshed with the first gear, the second gear and the third gear, a plurality of material stirring plates distributed in a radiation mode are respectively arranged on gear shafts of the first gear and the third gear, the material stirring plates are arranged on the gear box and distributed on two sides of the chain plate conveyor, a first bevel gear is arranged on the gear of the third gear, a second bevel gear is arranged on a main drum shaft of the chain plate conveyor and meshed with the first bevel gear, the main roller shaft of the chain plate conveyor is further connected with a material conveying motor through a chain, the material conveying motor is installed on a gear box, a control valve of a lifting control oil cylinder and the material conveying motor are respectively connected with a control system, and a material shovel is arranged at the front end of the gear box.

7. The portable tank dry-process sand production machine of any one of claims 1-6, wherein: still install automatic spray device in the screw conveyer, automatic spray device includes high pressure water tank, auger delivery axle and subassembly of intaking, be provided with the water delivery passageway in the auger delivery axle, water delivery passageway one end is sealed, and the other end is installed and is blockked up, the epaxial hole for water spraying that is provided with of auger delivery, the subassembly of intaking is installed to the tip of auger delivery axle, the externally mounted of fixed shell has high pressure water tank, high pressure water tank's bottom is connected with the outlet pipe, the outlet pipe is connected with the subassembly of intaking, be provided with the control valve on the outlet pipe.

8. The portable tank dry-process sand production machine of claim 7, characterized in that: the utility model discloses a water inlet assembly, including the spiral delivery cover, the spiral delivery cover is provided with the water inlet assembly, the water inlet assembly includes that water inlet sleeve, pressure bearing and gland constitute, the epaxial limit baffle that is provided with of spiral delivery, the water inlet sleeve suit is epaxial at the spiral delivery, just install pressure bearing between the one end of water inlet sleeve and the limit baffle, gland and pressure bearing are installed to the other end of water inlet sleeve, the middle part of water inlet sleeve is provided with annular intake chamber, be provided with the sealing bead between water inlet sleeve and the spiral delivery shaft, the sealing bead is located the both sides of annular intake chamber, the epaxial limbers that is provided with of spiral delivery, annular intake chamber and water delivery passageway are connected respectively to the limbers, be provided with attach fitting on the wall body of water inlet sleeve, attach fitting is linked together with annular intake chamber, attach fitting is connected with the outlet pipe.