CN209777683U - Light medium co-current pneumatic continuous conveying system - Google Patents
Light medium co-current pneumatic continuous conveying system Download PDFInfo
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- CN209777683U CN209777683U CN201920409826.1U CN201920409826U CN209777683U CN 209777683 U CN209777683 U CN 209777683U CN 201920409826 U CN201920409826 U CN 201920409826U CN 209777683 U CN209777683 U CN 209777683U
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- 239000000463 material Substances 0.000 claims abstract description 103
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 37
- 238000009434 installation Methods 0.000 claims description 15
- 238000007790 scraping Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 9
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 4
- 239000013589 supplement Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
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Abstract
the utility model relates to a light medium co-current pneumatic continuous conveying system, a light medium material bin pump consists of two independent bin pumps A and B, and the light medium material bin pump is matched with an air inlet valve and a two-way valve which are arranged on a pump body through a knife gate valve so as to realize the non-intermittent continuous high-pressure conveying of the light medium material and improve the conveying efficiency of the material; the air exhaust hole is formed in the empty material side of the anti-reverse-air rotary feeding valve connected to the bin pump, so that the problem that high-pressure air reversely flows upwards from the empty material side of the anti-reverse-air rotary feeding valve is solved, the anti-blocking mixer is arranged at the lower end of the anti-reverse-air rotary feeding valve, and an inclined circular hole is formed in the side wall between the anti-blocking blanking cavity and the anti-blocking air inlet cavity of the anti-reverse-air rotary feeding valve; the inclined circular holes at the two positions respectively pressurize and blow materials in the blanking cavity and the mixing cavity, so that the materials are prevented from being blocked at the joint, and by means of the mixer, the phenomenon of stopping in the conveying process is avoided, and the working efficiency of the mixer is improved.
Description
Technical Field
the utility model relates to a pneumatic transportation technical field especially relates to a light medium co-current pneumatic continuous conveying system.
Background
The pneumatic conveying technology is to realize the short-distance conveying of non-caking bulk materials (such as flour, fly ash, wheat and the like) in a pipeline by utilizing compressed air. The pneumatic conveying has the advantages of cleanness, environmental protection, safety, high automation degree and the like, but also has the defects of high power consumption, easy generation of material crushing, pipeline blockage, pipeline abrasion and the like. At present, pneumatic conveying is generally used for conveying powder and fine particle bulk materials, and for coarse and heavy materials with larger granularity and density, because the required conveying airflow velocity is higher, most of the coarse and heavy materials can be conveyed only in a dilute phase, energy consumption, material crushing and pipe wall abrasion are more serious. The low-speed dense-phase pneumatic transmission is an effective way for solving the problems of the pneumatic transmission technology, but has strict requirements on the properties and transmission adjustment of the transmitted materials, and the low-speed dense-phase pneumatic transmission condition of coarse and heavy materials is difficult to realize; the utility model provides a utility model for (2018201462302) provides a light is situated between and is flowed pneumatic conveying system altogether, utilize the supplementary pneumatic transportation that carries out through the circulation of light material that situated between, can realize the low-speed dense phase pneumatic conveying condition to the gross and heavy material, but the anti-problem that anti-wind rotatory feed valve of this system exists anti-wind, can cause the storehouse pump internal pressure to reduce, also seriously influence the unloading speed of material in the hopper, simultaneously because there is the turning in the junction of preventing anti-wind rotatory feed valve and below pipeline, the problem of preventing the jam of anti-wind rotatory feed valve feed opening and pipeline junction can appear often in the in-process of preventing the unloading of anti-wind rotatory feed valve.
The existing pneumatic conveying device usually adopts a single bin pump as a blanking device, but the bin pump needs to close a feeding hole for fluidization pressurization after feeding, and opens a discharging hole for conveying after pressurization is completed, so that the single bin pump cannot feed materials during conveying and cannot convey materials during feeding, the conveying device adopts intermittent feeding, continuous feeding cannot be carried out, and conveying efficiency is seriously influenced; the utility model discloses a utility model for (2013202300213) provides a novel dense looks pneumatic conveyor in succession, and the device's the pump body is the two-chamber pump body, can realize the continuous transportation of non-intermittence of material, but this utility model still does not solve the problem of preventing the rotatory feed valve of anti-back wind upwards to return wind, does not solve the feed opening of preventing the rotatory feed valve of anti-back wind and pipeline junction and takes place the problem of jam.
SUMMERY OF THE UTILITY MODEL
in order to solve the problem, the utility model provides a light is situated between and is flowed pneumatic continuous conveying system altogether.
The technical scheme of the utility model is that: the utility model provides a light is situated between and is flowed pneumatic continuous conveying system altogether, includes light thing feed bin, main material storehouse, prevents the rotatory feeding valve of anti-back wind, rotatory feeding valve, storehouse pump, prevents stifled blender, its characterized in that: the lower end of the light material bin is connected with a feed port of the rotary feed valve, a discharge port at the lower end of the rotary feed valve is connected with the bin pump, the bin pump comprises a bin pump A and a bin pump B, the bin pump A and the bin pump B are identical in size and are connected together side by side, the pump ports at the upper ends of the bin pump A and the bin pump B are respectively provided with a knife gate valve, the pump ports at the lower ends of the bin pump A and the bin pump B are also provided with a knife gate valve, and the lower pump ports of the bin pump A and the bin pump B are connected with a light material conveying pipe together;
The side walls of the upper parts of the bin pump A and the bin pump B are provided with two-way valves, and the side wall of the lower part of the bin pump A is provided with an air inlet valve; the lower end of the main material bin is connected with the anti-back-wind rotary feeding valve, the discharge port of the anti-back-wind rotary feeding valve is downwards connected with the anti-blocking mixer, the anti-blocking mixer comprises an anti-blocking air inlet cavity and an anti-blocking blanking cavity, the anti-blocking air inlet cavity is connected to one side of the anti-blocking blanking cavity, the lower ends of the anti-blocking air inlet cavity and the anti-blocking blanking cavity are connected with a transverse mixing cavity, a connecting wall between the anti-blocking air inlet cavity and the anti-blocking blanking cavity is provided with a plurality of inclined circular holes, the lower wall of the anti-blocking air inlet cavity is also provided with an inclined circular hole, the outer side wall of the anti-blocking air inlet cavity is connected with an air inlet pipe, a light medium material conveying pipe connected with the lower end of the bin pump is connected with the inlet of the mixing cavity, the outlet of the mixing cavity is connected with a mixed material conveying pipe, the included angle between the connecting wall and a, the delta is greater than gamma.
Preferably, γ is equal to or greater than 30 ° and equal to or less than 45 °.
Preferably, δ is equal to or greater than 30 ° and equal to or less than 45 °.
preferably, the inclined circular hole on the connecting wall inclines towards the blanking direction of the coarse and heavy materials in the anti-blocking blanking cavity, and the inclined circular hole on the lower wall of the anti-blocking air inlet cavity inclines towards the flowing direction of the light medium gas in the mixing cavity.
preferably, the anti-back-draft rotary feeding valve comprises a feeding valve shell, a rotary impeller and a driving shaft, wherein the upper end of the feeding valve shell is provided with a feeding hole, the lower end of the feeding valve shell is provided with a discharging hole corresponding to the feeding hole, the centers of two end covers of the feeding valve shell are provided with shaft mounting holes, the middle part of an end cover between one shaft mounting hole and the lower discharging hole is provided with a shell air supplementing hole, the arc-shaped side wall of the empty side of the feeding valve shell is provided with two symmetrical exhaust holes, and the end covers at two ends of an inner cavity of the feeding valve shell are provided with two circular grooves with the same size;
The rotary impeller comprises at least six rotary blades, the rotary impeller is arranged in the inner cavity of the feeding valve shell, the driving shaft transversely passes through shaft mounting holes on the two end covers and a shaft hole at the center of the rotary impeller to connect the rotary impeller and the feeding valve shell, the length of the rotary blade is the same as that of the inner cavity of the feeding valve shell, two circular end plates matched with the circular grooves in size are arranged at two ends of the rotary blade and are respectively connected in the two circular grooves in a matching way, a plurality of material loading grids are formed between the two circular end plates and the rotary blade, the circular end plate adjacent to the end cover provided with the shell air supply hole is provided with an impeller air inlet hole in the middle of each material loading grid along the circumference, the size of the impeller air inlet hole is the same as that of the shell air supply hole, the distance between the center of the air inlet hole of the impeller and the axis of the driving shaft is the same as the distance between the center of the air inlet hole of the shell and the axis of the driving shaft; the end part of the rotating blade and the inner side wall of the feeding valve shell are provided with a certain gap, the end part of the rotating blade is connected with a soft wear-resistant strip, and the soft wear-resistant strip is positioned at the gap and tightly pressed on the inner side wall of the feeding valve shell; the middle of the side surfaces of the two circular end plates is provided with an annular side surface sealing ring groove along the circumference, a sealing ring is arranged in the side surface sealing ring groove, the sealing ring is attached to the side wall of the circular groove, the middle of the outer end surfaces of the two circular end plates is at least provided with two concentric annular end surface sealing grooves along the circumference, the sealing ring is arranged in the end surface sealing groove, and the distance from the end surface sealing groove to the axis of the driving shaft is smaller than the distance from the air supply hole of the rotary impeller to the axis of the driving shaft; the lower end of the feeding port is provided with a replaceable scraping plate, the lower end of the scraping plate is connected with a scraping brush, and the scraping brush protrudes out of the inner side wall of the feeding valve shell; bearing installation shells are arranged at the positions, corresponding to the shaft installation holes, of the outer side surfaces of the two end covers of the feeding valve shell, bearings are installed in the bearing installation shells, two ends of the driving shaft are respectively sleeved with the bearings, one end of the driving shaft penetrates through the end covers of the bearing installation shells to be connected with a driving motor, and sealing check rings are arranged at the contact positions of the driving shaft and the end covers of the bearing installation shells; and a combined sealing check ring is sleeved on the driving shaft in the bearing mounting shell, and the inner end surface of the combined sealing check ring is attached to the outer end surface of the feeding valve shell.
Preferably, the knife gate valve includes a valve body and a valve plate, the valve plate is installed at one end in the valve body, the other end of the valve body is installed with a cylinder, and the cylinder is connected with the valve plate in the valve body.
Preferably, the lower parts of the side walls of the bin pump A and the bin pump B are respectively provided with an air inlet hole plate, and a plurality of air inlet holes are densely distributed on the air inlet hole plates.
The utility model has the beneficial technical effects that:
The utility model discloses a light medium material storehouse pump comprises two independent storehouse pumps first and storehouse pump second, the last pump mouth and the lower pump mouth department of storehouse pump first and storehouse pump second all are equipped with independent sword type gate valve, through the admission valve that sets up on sword type gate valve and the pump body, two-way valve cooperation, can realize, storehouse pump first is in the pressurized process of feeding, storehouse pump second unloading is carried, pump second is in the pressurized process of feeding, storehouse pump first unloading is carried, this device can not intermittent type carry out high pressure to light medium material in succession, and then carry the heavy material in the main material storehouse in succession, the conveying efficiency of material has been improved;
The utility model discloses the empty material side of the anti-back wind rotary feeding valve that is connected on the storehouse pump is opened has the exhaust hole, has solved the problem that high-pressure gas is against the wind upwards from the empty material side of the anti-back wind rotary feeding valve, is connected with soft wear strip on the rotary blade of the anti-back wind rotary feeding valve, has guaranteed the seal between blade and the storehouse pump inner wall, prevents gas leakage, should prevent against the wind rotary feeding valve when solving against the wind and gas leakage, has practiced thrift the energy, has improved energy utilization;
The utility model discloses a prevent that wind rotary feed valve lower extreme is equipped with stifled blender, prevent stifled blanking cavity and prevent that the lateral wall between the stifled air inlet cavity of blender is equipped with oblique round hole, prevent that the lower wall of stifled air inlet cavity also is equipped with oblique round hole; the inclined circular holes at the two positions respectively pressurize and blow materials in the blanking cavity and the mixing cavity, so that the materials are prevented from being blocked at the joint, and by means of the mixer, the phenomenon of stopping in the conveying process is avoided, and the working efficiency of the mixer is improved.
drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic sectional view of the anti-clogging mixer shown at A in FIG. 1;
FIG. 3 is a schematic structural view of an upper air inlet plate of the bin pump according to the present invention;
FIG. 4 is a schematic structural view of the knife gate valve of the present invention;
FIG. 5 is a schematic cross-sectional view of the anti-blowback rotary feed valve of the present invention;
3 FIG. 3 6 3 is 3 a 3 schematic 3 structural 3 view 3 taken 3 along 3 the 3 line 3 A 3- 3 A 3 in 3 FIG. 3 5 3; 3
FIG. 7 is a schematic view of the drive shaft of FIG. 6 with the drive shaft removed;
FIG. 8 is an enlarged view at B of FIG. 6;
Fig. 9 is an enlarged view at C of fig. 6.
In the figure, 1, a light material bin, 101, a rotary feeding valve, 2, a main material bin, 3, an anti-reverse-wind rotary feeding valve, 4, an anti-blocking mixer, 401, an anti-blocking air inlet cavity, 402, an anti-blocking blanking cavity, 403, a mixing cavity, 405, a connecting wall, 406, an inclined circular hole, 406, an air inlet pipe, 407, an outer blanking cavity wall, 408, the lower wall of the anti-blocking air inlet cavity, 5, a bin pump A, 6, a bin pump B, 7, a knife gate valve, 701, a valve body, 702, a valve plate, 703, an air cylinder, 8, a light material conveying pipe, 9, a two-way valve, 10, an air inlet valve, 11, a mixed material conveying pipe, 12, a feeding valve shell, 121, a feeding port, 122, a discharging port, 123, a shaft mounting hole, 124, a shell air replenishing hole, 125, 126, an end cover, 127, a circular groove, 13, a rotary vane, 131, 132, a shaft hole, 133, a circular end plate, 14, a driving shaft, 15, a material loading grid, 16, a soft wear-resistant strip, 17, a side sealing ring groove, 18, a sealing ring, 19, an end surface sealing groove, 20, a scraper plate, 21, a bearing mounting shell, 22, a bearing, 23, a sealing retainer ring, 24, a combined sealing retainer ring, 25 air inlet hole plates and 251 small air inlet holes.
Detailed Description
The first embodiment, referring to the attached drawings (1-9) of the specification, is a light medium co-current pneumatic continuous conveying system, which comprises a light medium material bin, a main material bin, an anti-back-wind rotary feeding valve, a bin pump and an anti-blocking mixer, and is characterized in that: the lower end of the light material storage bin is connected with a feed inlet of the rotary feed valve, a discharge outlet at the lower end of the rotary feed valve is connected with the bin pump, the bin pump comprises a bin pump A and a bin pump B, the bin pump A and the bin pump B are identical in size and are connected together side by side, the pump ports at the upper ends of the bin pump A and the bin pump B are respectively provided with a knife gate valve, the two knife gate valves are responsible for feeding, the pump ports at the lower ends of the bin pump A and the bin pump B are also provided with a knife gate valve, the knife gate valves are responsible for discharging, the lower pump ports of the bin pump A and the bin pump B are connected with a light material conveying pipe together, and after the knife gate valves at the lower end of the bin pump are opened, light materials enter the light material conveying pipe and flow to the anti-blocking mixer at the;
The side walls of the upper parts of the bin pump A and the bin pump B are provided with two-way valves, the two-way valves can intake air or exhaust air, and the side walls of the lower parts of the bin pumps are provided with air intake valves; the lower end of the main material bin is connected with the anti-back-wind rotary feeding valve, the discharge port of the anti-back-wind rotary feeding valve is downwards connected with the anti-blocking mixer, the anti-blocking mixer comprises an anti-blocking air inlet cavity and an anti-blocking blanking cavity, high-pressure gas in the anti-blocking air inlet cavity enters the anti-blocking blanking cavity to be pressurized, the anti-blocking air inlet cavity is connected to one side of the anti-blocking blanking cavity, the lower ends of the anti-blocking air inlet cavity and the anti-blocking blanking cavity are connected with a transverse mixing cavity, a connecting wall between the anti-blocking air inlet cavity and the anti-blocking blanking cavity is provided with a plurality of inclined circular holes, the lower wall of the anti-blocking air inlet cavity is also provided with inclined circular holes, the inclined circular holes blow the high-pressure gas to the blanking cavity entering the anti-blocking mixer, so as to avoid coarse materials from being blocked, the outer side wall of the, the light medium material conveying pipe connected with the lower end of the bin pump is connected with an inlet of the mixing cavity, high-pressure light medium materials in the light medium material conveying pipe enter the anti-blocking mixer to push the coarse and heavy materials to flow, and an outlet of the mixing cavity is connected with the mixed material conveying pipe.
The included angle of connecting wall and vertical line is gamma (30 is no less than gamma and no more than 45 °), the included angle delta (30 is no less than gamma and no more than 45 °) of the outer blanking cavity wall of anti-blocking blanking cavity and vertical line to delta is greater than gamma, the included angle guarantee that anti-blocking blanking cavity has certain slope and the opening grow of cavity lower extreme, thick and heavy material is difficult for blockking up, high-pressure gas in the oblique circular hole blows away the material more easily in addition.
The inclined round hole on the connecting wall inclines to the blanking direction of the coarse and heavy materials in the anti-blocking blanking cavity, and the inclined round hole on the lower wall of the anti-blocking air inlet cavity inclines to the flowing direction of the light medium gas in the mixing cavity, so that the direction of the high-pressure gas is the same as the flowing direction of the coarse and heavy materials.
Prevent rotatory feed valve of leeward, including feed valve casing, rotatory impeller, drive shaft, its characterized in that: the feeding valve comprises a feeding valve shell, a shaft mounting hole is formed in the center of each end cover of the shell and used for mounting a driving shaft, a shell air supplement hole is formed in the middle of the end cover between one shaft mounting hole and a lower discharging hole, the shell air supplement hole is externally connected with a high-pressure air source to introduce high-pressure air into the shell, two symmetrical exhaust holes are formed in the arc-shaped side wall of the empty side of the shell and used for exhausting the high-pressure air entering the shell through reverse wind, and two circular grooves with the same size are formed in the end covers at the two ends of the inner cavity of the shell; the rotary impeller comprises at least six rotary blades, the rotary impeller is arranged in an inner cavity of the shell, the drive shaft transversely penetrates through shaft mounting holes in two end covers and a shaft hole in the center of the rotary impeller to connect the rotary impeller and the shell, one end of the drive shaft is connected with a motor through a coupler and is used for driving the rotary impeller to rotate in the shell, the length of the rotary blade is the same as that of the inner cavity of the shell, two circular end plates matched with the circular grooves in size are arranged at two ends of the rotary blade, the two circular end plates are respectively connected in the two circular grooves in a matching manner, a plurality of material carrying grids are formed between the two circular end plates and the rotary blade, materials fall into the material carrying grids from the feed inlet and are discharged from the discharge outlet after being rotated to the lower end, a rotary impeller air inlet is formed in the middle of each material carrying grid along the circumference on the circular end plate adjacent to, the sizes of the air inlets of the rotary impellers are the same as those of the air supplement holes of the shell, the distance between the center of each air inlet of the rotary impellers and the axis of the driving shaft is the same as that between the center of each air inlet of the rotary impellers and the axis of the driving shaft, the air inlets of the rotary impellers in each material loading grid can be overlapped with the air inlets of the shell along with the rotation of the rotary impellers, and because the air inlets of the shell are connected with a high-pressure air source, enough pressure can be applied to materials by the high-pressure air entering the material loading grids at the moment that the air inlets of the rotary impellers and the air inlets of the shell are overlapped; the end part of the rotating blade and the inner side wall of the shell are provided with a certain gap, the end part of the rotating blade is connected with a soft wear-resistant strip, the soft wear-resistant strip is externally positioned at the gap and is tightly pressed on the inner side wall of the shell, the wear-resistant strip realizes the sealing of the rotating blade and the inner wall of the shell, and the influence of gas leakage on blanking is avoided; the middle of two end plate sides is opened along the circumference and is had annular side seal ring groove, and the sealing washer is installed to the side seal ring inslot, the lateral wall of sealing washer and above-mentioned circular recess is laminated mutually, and the middle part of two end plate outer end face is opened along the circumference at least has two concentric annular end face seal grooves, installs the sealing washer in the end face seal groove, the end face seal groove is less than the distance of rotatory impeller tonifying qi hole apart from the drive shaft axle center apart from the distance of drive shaft axle center, the sealing washer in the seal groove is all for preventing that high-pressure gas from leaking between the inner wall of rotatory impeller's end plate and casing end cover.
The lower port department of feed inlet is equipped with removable flitch of scraping, scrapes the flitch lower extreme and is connected with the material brush of scraping, should scrape the material brush outstanding in the inside wall of casing, scrapes the material brush and can will remain the material clean up on soft wear strip, prevents to mix with the material between rotatory impeller and the shells inner wall and leads to gas leakage.
the bearing installation shell is arranged at the position, corresponding to the shaft installation hole, of the outer side faces of the two end covers of the shell, a bearing is installed in the bearing installation shell, the two ends of the driving shaft are respectively sleeved with the bearing, one end of the driving shaft penetrates through the end cover of the bearing installation shell to be connected with the driving motor, a sealing check ring is arranged at the contact position of the driving shaft and the end cover of the bearing installation shell, and the sealing check ring also prevents gas leakage.
The bearing mounting structure is characterized in that a combined sealing check ring is sleeved on the driving shaft in the bearing mounting shell, the inner end face of the combined sealing check ring is attached to the outer end face of the shell, and the combined sealing check ring seals a gap between the driving shaft and the shaft mounting hole.
the knife gate valve comprises a valve body and a valve plate, wherein the valve plate is arranged at one end in the valve body, the other end of the valve body is provided with a cylinder, and the cylinder is connected with the valve plate in the valve body.
the lower parts of the side walls of the bin pump A and the bin pump B are respectively provided with an air inlet hole plate, a plurality of air inlet holes are densely distributed on the air inlet hole plates, and the air inlet hole plates disperse high-pressure air entering the bin pump, so that light medium materials can be fluidized and pressurized more fully and uniformly in the bin pump.
the utility model discloses a concrete working process as follows:
a. The light medium materials enter the rotary feeding valve below from the light medium material bin, the light medium materials are conveyed into the bin pump below through rotary feeding, and the operation method for realizing continuous feeding through the specific matching of the two bin pumps is as follows:
The light medium materials flowing out of the bin pump A or the bin pump B enter a light medium material conveying pipe below the bin pump A or the bin pump B and flow to the main material bin;
b. After the coarse and heavy materials in the main material bin enter the anti-back-wind rotary feeding valve, the anti-back-wind rotary feeding valve pressurizes the coarse and heavy materials to improve the material discharging speed, the materials flowing out of the anti-back-wind rotary feeding valve enter the anti-blocking mixer, an anti-blocking blanking cavity of the anti-blocking mixer has certain inclination, the inclination direction of the inclined circular hole is the same as that of the anti-blocking blanking cavity, therefore, the direction of high-pressure gas blown out of the inclined circular hole is the same as that of the coarse and heavy materials, the coarse and heavy material flow is accelerated, and the blocking phenomenon is avoided;
c. light material conveyer pipe is connected with the hybrid chamber of preventing stifled blender, and thick heavy material enters into the hybrid chamber from preventing stifled blanking chamber after, and light material of high pressure impels thick heavy material to move and enters into the hybrid material conveyer pipe.
Claims (7)
1. a light medium co-flow pneumatic continuous conveying system comprises a light medium material bin, a main material bin, a pneumatic conveying device, a conveying device and a conveying device,
Prevent return-air rotary feeding valve, rotatory feeding valve, storehouse pump, prevent stifled blender, its characterized in that: the lower end of the light material bin is connected with a feed port of the rotary feed valve, a discharge port at the lower end of the rotary feed valve is connected with the bin pump, the bin pump comprises a bin pump A and a bin pump B, the bin pump A and the bin pump B are identical in size and are connected together side by side, the pump ports at the upper ends of the bin pump A and the bin pump B are respectively provided with a knife gate valve, the pump ports at the lower ends of the bin pump A and the bin pump B are also provided with a knife gate valve, and the lower pump ports of the bin pump A and the bin pump B are connected with a light material conveying pipe together;
The side walls of the upper parts of the bin pump A and the bin pump B are provided with two-way valves, and the side wall of the lower part of the bin pump A is provided with an air inlet valve; the lower end of the main material bin is connected with the anti-back-wind rotary feeding valve, the discharge port of the anti-back-wind rotary feeding valve is downwards connected with the anti-blocking mixer, the anti-blocking mixer comprises an anti-blocking air inlet cavity and an anti-blocking blanking cavity, the anti-blocking air inlet cavity is connected to one side of the anti-blocking blanking cavity, the lower ends of the anti-blocking air inlet cavity and the anti-blocking blanking cavity are connected with a transverse mixing cavity, a connecting wall between the anti-blocking air inlet cavity and the anti-blocking blanking cavity is provided with a plurality of inclined circular holes, the lower wall of the anti-blocking air inlet cavity is also provided with an inclined circular hole, the outer side wall of the anti-blocking air inlet cavity is connected with an air inlet pipe, a light medium material conveying pipe connected with the lower end of the bin pump is connected with the inlet of the mixing cavity, the outlet of the mixing cavity is connected with a mixed material conveying pipe, the included angle between the connecting wall and a, the delta is greater than gamma.
2. the light medium co-current pneumatic continuous conveying system according to claim 1, wherein the light medium co-current pneumatic continuous conveying system is characterized in that
The method comprises the following steps: the gamma is more than or equal to 30 degrees and less than or equal to 45 degrees.
3. The light medium co-current pneumatic continuous conveying system according to claim 1, wherein the light medium co-current pneumatic continuous conveying system is characterized in that
the method comprises the following steps: the delta is greater than or equal to 30 degrees and less than or equal to 45 degrees.
4. the light medium co-current pneumatic continuous conveying system according to claim 1, wherein the light medium co-current pneumatic continuous conveying system is characterized in that
The method comprises the following steps: the inclined round hole on the connecting wall inclines to the blanking direction of coarse and heavy materials in the anti-blocking blanking cavity, and the inclined round hole on the lower wall of the anti-blocking air inlet cavity inclines to the flowing direction of light medium gas in the mixing cavity.
5. The light medium co-current pneumatic continuous conveying system according to claim 1, wherein the light medium co-current pneumatic continuous conveying system is characterized in that
the method comprises the following steps: the anti-back-draft rotary feeding valve comprises a feeding valve shell, a rotary impeller and a driving shaft, wherein a feeding hole is formed in the upper end of the feeding valve shell, a discharging hole is formed in the lower end of the feeding valve shell and corresponds to the feeding hole, shaft mounting holes are formed in the centers of two end covers of the feeding valve shell, a shell air supplementing hole is formed in the middle of an end cover between one shaft mounting hole and the discharging hole below the shaft mounting hole, two symmetrical exhaust holes are formed in the arc-shaped side wall of the empty side of the feeding valve shell, and two circular grooves with the same size are formed in the end covers at two ends of an inner cavity of;
The rotary impeller comprises at least six rotary blades, the rotary impeller is arranged in the inner cavity of the feeding valve shell, the driving shaft transversely passes through shaft mounting holes on the two end covers and a shaft hole at the center of the rotary impeller to connect the rotary impeller and the feeding valve shell, the length of the rotary blade is the same as that of the inner cavity of the feeding valve shell, two circular end plates matched with the circular grooves in size are arranged at two ends of the rotary blade and are respectively connected in the two circular grooves in a matching way, a plurality of material loading grids are formed between the two circular end plates and the rotary blade, the circular end plate adjacent to the end cover provided with the shell air supply hole is provided with an impeller air inlet hole in the middle of each material loading grid along the circumference, the size of the impeller air inlet hole is the same as that of the shell air supply hole, the distance between the center of the air inlet hole of the impeller and the axis of the driving shaft is the same as the distance between the center of the air inlet hole of the shell and the axis of the driving shaft; the end part of the rotating blade and the inner side wall of the feeding valve shell are provided with a certain gap, the end part of the rotating blade is connected with a soft wear-resistant strip, and the soft wear-resistant strip is positioned at the gap and tightly pressed on the inner side wall of the feeding valve shell; the middle of the side surfaces of the two circular end plates is provided with an annular side surface sealing ring groove along the circumference, a sealing ring is arranged in the side surface sealing ring groove, the sealing ring is attached to the side wall of the circular groove, the middle of the outer end surfaces of the two circular end plates is at least provided with two concentric annular end surface sealing grooves along the circumference, the sealing ring is arranged in the end surface sealing groove, and the distance from the end surface sealing groove to the axis of the driving shaft is smaller than the distance from the air supply hole of the rotary impeller to the axis of the driving shaft; the lower end of the feeding port is provided with a replaceable scraping plate, the lower end of the scraping plate is connected with a scraping brush, and the scraping brush protrudes out of the inner side wall of the feeding valve shell; bearing installation shells are arranged at the positions, corresponding to the shaft installation holes, of the outer side surfaces of the two end covers of the feeding valve shell, bearings are installed in the bearing installation shells, two ends of the driving shaft are respectively sleeved with the bearings, one end of the driving shaft penetrates through the end covers of the bearing installation shells to be connected with a driving motor, and sealing check rings are arranged at the contact positions of the driving shaft and the end covers of the bearing installation shells; and a combined sealing check ring is sleeved on the driving shaft in the bearing mounting shell, and the inner end surface of the combined sealing check ring is attached to the outer end surface of the feeding valve shell.
6. The light medium co-current pneumatic continuous conveying system according to claim 1, wherein the light medium co-current pneumatic continuous conveying system is characterized in that
the method comprises the following steps: the knife gate valve comprises a valve body and a valve plate, wherein the valve plate is arranged at one end in the valve body, the other end of the valve body is provided with a cylinder, and the cylinder is connected with the valve plate in the valve body.
7. The light medium co-current pneumatic continuous conveying system according to claim 1, wherein the light medium co-current pneumatic continuous conveying system is characterized in that
The method comprises the following steps: and air inlet hole plates are arranged at the lower parts of the side walls of the bin pump A and the bin pump B, and a plurality of air inlet holes are densely distributed on the air inlet hole plates.
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| CN201920409826.1U CN209777683U (en) | 2019-03-28 | 2019-03-28 | Light medium co-current pneumatic continuous conveying system |
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| CN201920409826.1U CN209777683U (en) | 2019-03-28 | 2019-03-28 | Light medium co-current pneumatic continuous conveying system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115193315A (en) * | 2022-07-22 | 2022-10-18 | 安徽富乐德科技发展股份有限公司 | Mixing arrangement of plasma spraying powder |
| CN117088127A (en) * | 2023-10-18 | 2023-11-21 | 江苏恒博气力输送设备制造有限公司 | Pneumatic conveying pump structure capable of continuously working for long time |
-
2019
- 2019-03-28 CN CN201920409826.1U patent/CN209777683U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115193315A (en) * | 2022-07-22 | 2022-10-18 | 安徽富乐德科技发展股份有限公司 | Mixing arrangement of plasma spraying powder |
| CN117088127A (en) * | 2023-10-18 | 2023-11-21 | 江苏恒博气力输送设备制造有限公司 | Pneumatic conveying pump structure capable of continuously working for long time |
| CN117088127B (en) * | 2023-10-18 | 2023-12-15 | 江苏恒博气力输送设备制造有限公司 | Pneumatic conveying pump structure capable of continuously working for long time |
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Assignee: BENSV VALVE STOCK Co.,Ltd. Assignor: NORTH CHINA University OF WATER RESOURCES AND ELECTRIC POWER Contract record no.: X2024120000015 Denomination of utility model: A light medium co flow pneumatic continuous conveying system Granted publication date: 20191213 License type: Common License Record date: 20240122 |
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