CN106743678B - Turning plate type toothed belt powder conveying device - Google Patents
Turning plate type toothed belt powder conveying device Download PDFInfo
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- CN106743678B CN106743678B CN201610997807.6A CN201610997807A CN106743678B CN 106743678 B CN106743678 B CN 106743678B CN 201610997807 A CN201610997807 A CN 201610997807A CN 106743678 B CN106743678 B CN 106743678B
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- transmission assembly
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- turning
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- 239000000843 powder Substances 0.000 title claims abstract description 63
- 230000005540 biological transmission Effects 0.000 claims abstract description 125
- 230000007306 turnover Effects 0.000 claims description 32
- 238000007789 sealing Methods 0.000 claims description 20
- 238000005452 bending Methods 0.000 claims description 8
- 239000011261 inert gas Substances 0.000 abstract description 4
- 239000003245 coal Substances 0.000 description 20
- 239000007789 gas Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000008247 solid mixture Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000002309 gasification Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/44—Endless conveyors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/26—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface comprising a series of co-operating units, e.g. interconnected by pivots
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Belt Conveyors (AREA)
- Basic Packing Technique (AREA)
Abstract
The invention provides a turning plate type toothed belt powder conveying device, which comprises a shell, wherein the upper end of the shell is provided with a powder inlet, and the lower end of the shell is provided with a powder outlet; the first transmission assembly and the second transmission assembly are respectively arranged on the left side and the right side in the shell in parallel and can respectively reciprocate clockwise and anticlockwise; the first turning plate assembly comprises a plurality of first turning plates positioned on the outer wall of the transmission direction of the first transmission assembly, and the first turning plate positioned on the left side of the first transmission assembly is in contact with the left inner wall surface of the shell; the second turning plate assembly comprises a plurality of second turning plates positioned on the outer wall of the second transmission assembly in the transmission direction, and the second turning plates positioned on the right side of the second transmission assembly are in contact with the inner wall surface on the right side of the shell; the shifting teeth are fixed at preset positions on the inner wall of the shell; the first turning plate and the second turning plate which are positioned between the first transmission assembly and the second transmission assembly are partially overlapped one by one. The device does not need inert gas, and the energy utilization rate is high.
Description
Technical Field
The invention relates to the technical field of powder conveying, in particular to a turning plate type toothed belt powder conveying device.
Background
The efficient gasification technology of coal is one of the clean utilization ways of coal, and the technology meets the requirement of the change of the coal utilization concept in the 21 st century on the new technology, changes the existing coal utilization mode, and also brings higher requirements on the clean efficient comprehensive utilization of coal. The pulverized coal pressurized gasification technology is one of the mainstream gasification technologies at present by its unique vitality.
In the common pulverized coal pressurized gasification technology, a carrier gas-airtight pneumatic intermittent pressurized conveying method is adopted for pressurizing and conveying pulverized coal, a large amount of nitrogen or carbon dioxide from a compressor is required for each pressurizing conveying cycle, carrier gas compression energy is required to be consumed, gas waste is serious, and energy recovery is difficult. Meanwhile, a large number of equipment pipelines and a high civil engineering frame are needed, a process system is complex, the cost is high, intermittent operation is performed, the material flow is difficult to control, and the downstream stable operation is influenced.
Disclosure of Invention
The invention provides a turning plate type toothed belt powder conveying device which can simplify the pulverized coal conveying process, improve the energy utilization rate, reduce the investment cost and achieve the aims of cleaning and efficiently conveying and pressurizing coal.
The invention provides a turning plate type toothed belt powder conveying device which comprises a shell, a first transmission assembly, a second transmission assembly, a first turning plate assembly, a second turning plate assembly and a plurality of shifting teeth, wherein the first transmission assembly is connected with the first transmission assembly; the upper end of the shell is provided with a powder inlet, and the lower end of the shell is provided with a powder outlet; the first transmission assembly and the second transmission assembly are respectively arranged at the left side and the right side in the shell, the first transmission assembly and the second transmission assembly are parallel to each other and are separated by a preset distance, the first transmission assembly can carry out clockwise reciprocating transmission, and the second transmission assembly can carry out anticlockwise reciprocating transmission; the first turning plate assembly comprises a plurality of first turning plates positioned on the outer wall of the first transmission assembly in the transmission direction, the first turning plates can turn over by 0-90 degrees relative to the first transmission assembly, and the first turning plates positioned on the left side of the first transmission assembly are in contact with the inner wall surface on the left side of the shell; the second turning plate assembly comprises a plurality of second turning plates positioned on the outer wall of the second transmission assembly in the transmission direction, the second turning plates can turn over by 0-90 degrees relative to the second transmission assembly, and the second turning plates positioned on the right side of the second transmission assembly are in contact with the inner wall surface on the right side of the shell; the poking teeth are fixed at preset positions on the inner wall of the shell and are used for being matched with the first turning plate assembly and the second turning plate assembly to realize the opening and closing of the first turning plate and the second turning plate; the first turning plates and the second turning plates which are positioned between the first transmission assembly and the second transmission assembly are partially overlapped one by one, and a pressurizing conveying cavity is formed between overlapped parts of the first turning plates and the second turning plates which are partially overlapped by one.
In a specific embodiment, the first transmission assembly comprises two first driving gears and a first belt chain, wherein the two first driving gears are positioned at the upper side and the lower side of the inside of the first belt chain, and the first belt chain is in bending transmission around the first driving gears;
The second transmission assembly comprises two second driving gears and a second belt chain, wherein the two second driving gears are positioned at the upper side and the lower side of the inside of the second belt chain, and the second belt chain is in bending transmission around the second driving gears.
In a specific embodiment, the flap type toothed belt powder conveying device further comprises:
at least one first support wheel positioned between two first drive gears of the first transmission assembly, the first support wheel rotating with the transmission of the first belt chain; and
At least one second support wheel positioned between two second drive gears of the second transmission assembly, the second support wheel rotating with the transmission of the second belt chain.
In a specific embodiment, the first drive gear/second drive gear is a circular wheel; the first support wheel/second support wheel is a round wheel.
In a specific embodiment, the first belt link and the second belt link each comprise a plurality of link plates, a first sprocket, a second sprocket and a sprocket shaft; the front side and the rear side of the chain plate are respectively provided with an upward bending section; the front side and the rear side of the bottom surface of each chain plate are respectively provided with a first sprocket with a shaft hole, and the middle part of each chain plate is provided with a second sprocket with a shaft hole; the sprocket shaft is inserted into the first sprocket and the second sprocket of two adjacent link plates to connect the link plates into the first belt chain/the second belt chain, and the second sprocket is located between the two first sprockets on the same side.
In a specific embodiment, the first flap assembly is positioned on a link plate of the first drive assembly; the second flap assembly is positioned on a link plate of the second transmission assembly;
The first flap assembly further comprises a first base and a first hinge shaft; the first hinge shaft penetrates through a preset hole in the first turning plate to be fixed on the first base, so that the first turning plate can rotate around the first hinge shaft; the first base is provided with an angle-steel-like structure, a straight short side of the first base is fixedly welded on the first chain plate, and the other straight long side is used for positioning the first turning plate when the first turning plate rotates around the first hinge shaft to form 90 degrees with the first chain plate so as to prevent the first turning plate from being continuously opened;
the second flap assembly further comprises a second base and a second hinge shaft; the second hinge shaft penetrates through a preset hole in the second turning plate to be fixed on the second base, so that the second turning plate can rotate around the second hinge shaft; the second base is of an angle-steel-like structure, a right-short-angle side of the second base is fixedly welded to the second chain plate, and the other right-angle long side is used for positioning the second turning plate when the second turning plate rotates around the second hinge shaft to form 90 degrees with the second chain plate so as to prevent the second turning plate from being continuously opened.
In a specific embodiment, the side surface of the first turning plate and the surface contacted with the shell are provided with a first sealing structure for ensuring the tightness of the contact part when the first turning plate is turned to be contacted with the inner wall of the shell; the side of the second turning plate and the side contacted with the shell are provided with a second sealing structure for ensuring the tightness of the contact part when the second turning plate is rotated to be contacted with the inner wall of the shell.
In a specific embodiment, the first and second flap assemblies are identical and the assembly direction of the first flap assembly with the link plate is opposite to the assembly direction of the first flap assembly with the link plate.
The technical scheme of the invention has the following beneficial effects:
In the scheme, the first turning plate assembly and the second turning plate assembly reciprocate along with the first transmission assembly and the second transmission assembly, and the first turning plate and the second turning plate are closed when moving to the inner side of the shell, and form a sealing structure with the shell to prevent materials from leaking from the sealing structure; when the first turning plate and the second turning plate move to the upper sides of the first transmission component and the second transmission component, the first turning plate and the second turning plate are mutually overlapped when being parallel, at the moment, powder falling on the turning plate from the powder inlet at the top of the shell moves downwards along with the turning plate, the powder outlet at the bottom of the shell is connected with the high-pressure tank, the overlapping part of the turning plate allows leakage, gas can leak upwards from the overlapping part of the turning plate step by step and is mixed with the powder, so that the purpose of gradually pressurizing the powder is achieved, the pressure of a gas-solid mixed medium is reduced layer by layer along with the resistance brought by the turning plate, and finally, the gas-solid mixture is downwards moved downwards from the powder outlet step by step through the reciprocating overlapping turning plate in the pressurizing conveying cavity, so that the pressurizing conveying of the powder is realized, inert gas is not needed to participate in conveying in the whole process, the use and emission of the inert gas are reduced, meanwhile, the equipment pipeline for conveying the gas is reduced, the process is simple, the investment cost is low, and the total conveying energy consumption of the device is reduced by more than 50% compared with the prior art, and the energy source can be effectively saved.
Drawings
Fig. 1 is a schematic structural diagram of a turning plate type toothed belt powder conveying device according to an embodiment of the present invention;
fig. 2 is an enlarged partial schematic view of the first transmission assembly 10 and the second transmission assembly 3;
FIG. 3 is a schematic view of a partial structure of the first belt link 102;
fig. 4 is a superimposed partial enlarged view of the first flap assembly 11 and the second flap assembly 4.
[ Description of reference numerals ]
1. A housing; 2. A powder inlet; 3. A second transmission assembly;
4. a second flap assembly; 5. A pressurized delivery chamber; 6. A second support wheel;
7. tooth shifting; 8. A powder outlet; 9. A first support wheel;
10. A first transmission assembly; 11. A first flap assembly; 31. A second drive gear;
32. a second belt chain; 101. A first drive gear; 102. A first belt chain;
1021. a link plate; 1022. A chain shaft; 1023. A first sprocket;
1024. a second sprocket; 111. A first sealing structure; 112. A first flap;
113. a first hinge shaft; 114. A first base; 41. A second sealing structure;
42. a second flap; 43. A second hinge shaft; 44. And a second base.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of a turning plate type toothed belt powder conveying device according to an embodiment of the present invention, as shown in fig. 1, the device includes a housing 1, a first transmission assembly 10, a second transmission assembly 3, a first turning plate assembly 11, a second turning plate assembly 4, and a plurality of shifting teeth 7. Wherein, the upper end of the shell 1 is provided with a powder inlet 2, and the lower end is provided with a powder outlet 8; the first transmission assembly 10 and the second transmission assembly 3 are respectively arranged at the left side and the right side in the shell 1, the first transmission assembly 10 and the second transmission assembly 3 are parallel to each other and are spaced at a preset distance, the first transmission assembly 10 can reciprocate clockwise, and the second transmission assembly 3 can reciprocate anticlockwise; the first turning plate assembly 11 comprises a plurality of first turning plates 112 positioned on the outer wall of the first transmission assembly 10 in the transmission direction, the first turning plates 112 can turn by 0-90 degrees relative to the first transmission assembly 10, and the first turning plates 112 positioned on the left side of the first transmission assembly 10 are in contact with the left inner wall surface of the shell 1; the second turning plate assembly 4 comprises a plurality of second turning plates 42 positioned on the outer wall of the second transmission assembly 3 in the transmission direction, the second turning plates 42 can turn over by 0-90 degrees relative to the second transmission assembly 3, and the second turning plates 42 positioned on the right side of the second transmission assembly 3 are in contact with the inner wall surface on the right side of the shell 1; the poking teeth 7 are fixed at preset positions on the inner wall of the shell 1 and are used for being matched with the first turning plate assembly 11 and the second turning plate assembly 4 to realize the opening (turning to 90 degrees) and closing (turning back to 0 degree) of the first turning plate 112 and the second turning plate 42; the first turning plate 112 and the second turning plate 42 which are positioned between the first transmission assembly 10 and the second transmission assembly 3 are partially overlapped with each other one by one.
In the device shown in fig. 1, powder enters the shell 1 from the powder inlet 2, the powder outlet 8 of the shell 1 is connected with a high-pressure powder tank, and as the first transmission assembly 10 and the left inner wall of the shell 1 are sealed through the first flap assembly 11, the second transmission assembly 3 and the right inner wall of the shell 1 are sealed through the second flap assembly 4, and a pressurizing conveying cavity 5 is formed in a cavity part in the shell 1. The folding part of the turning plate allows a certain amount of gas-solid mixture to leak, and along with the gradual leakage of high-pressure gas entering from the powder outlet 8 from the folding part of the turning plate, the gradual pressurization of the powder on each layer of turning plate is realized, and when the gas pressure is gradually smaller than the allowable leakage pressure of the folding plate, the sealing of the gas-solid mixture is realized at the upper part of the device.
Fig. 2 is an enlarged partial schematic view of the first transmission assembly 10 and the second transmission assembly 3, and as shown in fig. 1 and 2, the first transmission assembly 10 includes two first driving gears 101 and a first belt chain 102, the two first driving gears 101 being positioned at upper and lower sides inside the first belt chain 102, the first belt chain 102 being driven to curve around the first driving gears 101; the second transmission assembly 3 includes two second driving gears 31 and a second belt chain 32, the two second driving gears 31 being positioned at upper and lower sides inside the second belt chain 32, the second belt chain 32 being transmitted bending around the second driving gears 31. As shown in fig. 2, the second transmission assembly 3 is identical in structure with the first transmission assembly 10, is installed on the same horizontal plane, and has opposite transmission directions, but the positioning installation height of the second transmission assembly 3 in the horizontal direction is slightly higher than that of the first transmission assembly 10 so as to ensure that the two side flaps of the first transmission assembly 10 and the second transmission assembly 3 are overlapped.
When the distance between the upper and lower driving gears of the first transmission assembly 10/the second transmission assembly 3 is longer, the belt chain in the middle of the two driving gears deforms to cause leakage of the sealing position of the turning plate and the shell, and uneven contact surface of the overlapping position of the turning plate is caused to influence the conveying and pressurizing of powder. To solve this problem, preferably, as shown in fig. 1, the flap type toothed belt powder conveying device may further include: at least one first support wheel 9 positioned between two first drive gears 101 of the first transmission assembly 10 and at least one second support wheel 6 positioned between two second drive gears 31 of the second transmission assembly 3. The first supporting wheel 9 is positioned between the two first driving gears 101 of the first transmission assembly 10, rotates with the transmission of the first belt chain 102, and prevents deformation from being generated by compression toward the inside of the first belt chain 102. The second support wheel 6 is positioned between the two second drive gears 31 of the second transmission assembly 3, similar to the function of the first support wheel 9. The number of the first supporting wheels and the second supporting wheels and the distance between the wheels can be adjusted according to the sealing pressure and the transmission length of the belt chain.
As shown in fig. 1 and 2, the first and second driving gears 101 and 31 are preferably circular wheels, and the first and second supporting wheels 9 and 6 are preferably circular wheels.
Fig. 3 is a partial structural schematic view of the first belt chain 102, and as shown in fig. 3, the first belt chain 102 includes a plurality of link plates 1021, a first sprocket 1023, a second sprocket 1024 and a sprocket shaft 1022; the front side and the rear side of the chain plate 1021 are respectively provided with an upward bending section, so that the sealing between the side direction and the shell 1 is ensured; the front side and the rear side of the bottom surface of each chain plate 1021 are respectively provided with a first sprocket 1023 with a shaft hole, and the middle part of each chain plate 1021 is provided with a second sprocket 1024 with a shaft hole; the chain shaft 1022 is inserted into the first and second sprockets 1023 and 1024 of two adjacent link plates 1021 to connect the link plates 1021 into the first belt chain 102, and the second sprocket 1024 is located between the two first sprockets 1023 on the same side. The second belt link 32 has the same structure as the first belt link 102 shown in fig. 3, and will not be described again here.
Fig. 4 is an enlarged partial view of the first flap assembly 11 and the second flap assembly 4 in a superimposed position, as shown in fig. 4, with the first flap assembly 11 positioned on the link plate 1021 of the first transmission assembly 10; the second flap assembly 4 is positioned on the link plate 1021 of the second transmission assembly 3. Wherein, the first flap assembly 11 comprises a first base 114 and a first hinge shaft 113 in addition to the first flap 112; the first hinge shaft 113 is fixed on the first base 114 through a preset hole on the first turning plate 112, so that the first turning plate 112 can rotate around the first hinge shaft 113 between 0 and 90 degrees; as shown in fig. 3 and 4, the first base 114 is of an angle-like structure, a right-angle short side of the first base 114 is fixedly welded to the first link plate 1021, and the other right-angle long side is used for positioning the first flap 112 to prevent the first flap 112 from continuing to open when the first flap 112 rotates around the first hinge shaft 113 to 90 ° with the first link plate 1021. The second flap assembly 4 includes a second base 44 and a second hinge shaft 43 in addition to the second flap 42; the second hinge shaft 43 passes through a preset hole on the second turning plate 42 and is fixed on the second base 44, so that the second turning plate 42 can rotate around the second hinge shaft 43 between 0 and 90 degrees; the second base 44 is an angle-like structure, a right-angle short side of the second base 44 is fixedly welded to the second link plate 1021, and the other right-angle long side is used for positioning the second flap 42 to prevent the second flap 42 from continuing to open when the second flap 42 rotates around the second hinge shaft 43 to 90 ° with the second link plate 1021. When the device is specifically used, parameters such as the folding length of the turning plates, the number of the turning plates, the thickness of the turning plates and the like of the first turning plate assembly and the second turning plate assembly can be adjusted according to the quantity of the pressurized conveying powder and the quantity of the powder materials.
Preferably, as shown in fig. 4, the side surface of the first turning plate 112 and the surface contacted with the housing 1 are provided with a first sealing structure 111 for ensuring the sealing property of the contact part when the first turning plate 112 is turned to be contacted with the inner wall of the housing 1, and preventing the gas-solid mixture from leaking upwards therefrom; the second sealing structure 41 is arranged on the side surface of the second turning plate 42 and the surface contacted with the shell 1, and is used for ensuring the sealing performance of the contact part when the second turning plate 42 rotates to be contacted with the inner wall of the shell 1, so as to prevent the gas-solid mixture from leaking upwards.
As a preferred embodiment, as shown in fig. 4, the first flap assembly 11 and the second flap assembly 4 are identical in composition, namely: the first turning plate 112 is the same as the second turning plate 42, the first base 114 is the same as the second base 44, the first hinge shaft 113 is the same as the second hinge shaft 43, and the connection relation of the first turning plate 112, the first base 114 and the first hinge shaft 113 is the same as the connection relation of the second turning plate 42, the second base 44 and the second hinge shaft 43, the difference is that the assembly direction of the first turning plate assembly 11 and the chain plate 1021 is opposite to the assembly direction of the second turning plate assembly 4 and the chain plate 1021 during installation, and the maximum powder leakage amount at the folding position of the turning plate can be controlled through the limit of the folding plate during reverse installation.
By adopting the turnover plate type toothed belt powder conveying device provided by the embodiment, the driving gears are synchronously started, the first transmission assembly performs clockwise reciprocating motion, the second transmission assembly performs anticlockwise reciprocating motion, the first turnover plate and the second turnover plate outside the first transmission assembly and the second transmission assembly also move along with the clockwise reciprocating motion, when the first turnover plate and the second turnover plate move to the upper part of the device, under the assistance of the poking teeth, the first turnover plate and the second turnover plate start to be opened, then the turnover plates on two sides of the mutually parallel parts of the first transmission assembly and the second transmission assembly meet, the first turnover plate and the second turnover plate are partially overlapped with each other, a powder material carrying platform is formed, and when the turnover plates continue to move downwards to the joint with the wall surface of the shell, the turnover plates on two sides are all folded to form an included angle of 0 degrees with the inner side wall of the shell, so that the surface contact sealing with the shell is realized. Powder material enters the shell from the powder inlet, moves downwards along with the folded turnover plates of each layer, the powder outlet is connected with the high-pressure gas tank, a high-pressure area is formed at the bottom of the shell, the powder material on the turnover plates is leaked layer by layer at the folded position of the turnover plates, when the gas pressure is gradually smaller than the allowable leakage pressure of the folded turnover plates, the turnover plates at the upper part of the device realize the sealing of the gas-solid mixture, and finally the gas-solid mixture is sent out from the powder outlet through the gradual downward movement of the reciprocating folded turnover plates in the pressurizing conveying cavity.
The preferred embodiment of the invention is a coal pressurizing and feeding unit used in the dry coal powder gasification process, mainly changing dry coal powder from normal pressure state to high pressure state, and conveying high pressure dry coal powder concentrated phase to a high pressure coal feeding tank in a stable manner, and finally conveying the coal powder to a gasification furnace burner by the coal feeding tank. The normal-pressure dry coal powder enters the device provided by the invention from the powder inlet 2, falls onto the turning plate which moves back and forth along with the transmission component, and is conveyed to a high-pressure area at the bottom of the shell along with the turning plate in the pressurizing conveying cavity. The high-pressure tank with the pressure of about 4.5MPa is connected with the powder outlet of the device, the purpose of pressurizing powder materials on the turning plate is achieved by layer leakage at the overlapping position of the turning plate, and finally, the gas-solid mixture is downwards moved step by step through the reciprocating overlapping turning plate in the pressurizing conveying cavity and is sent out from the powder outlet, so that the pressurizing conveying of powder is realized in the whole process.
According to the turnover plate type toothed belt powder conveying device provided by the embodiment of the invention, the conveying of pulverized coal from a low-pressure environment to a high-pressure environment is realized by controlling the rotation of the gears, inert gas is not needed to participate in conveying, and the environmental pollution is reduced; meanwhile, equipment pipelines for conveying gas are reduced, and the investment cost is low; the speed of the pulverized coal pressurized conveying is regulated by the rotation speed of the driving wheel and the toothed belt, and the process is simple; compared with the prior art, the overall conveying energy consumption of the device is reduced by more than 50%, and the energy can be effectively saved.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (7)
1. The turnover plate type toothed belt powder conveying device is characterized by comprising a shell (1), a first transmission assembly (10), a second transmission assembly (3), a first turnover plate assembly (11), a second turnover plate assembly (4) and a plurality of poking teeth (7); the upper end of the shell (1) is provided with a powder inlet (2), and the lower end of the shell is provided with a powder outlet (8); the first transmission assembly (10) and the second transmission assembly (3) are respectively arranged at the left side and the right side in the shell (1), the first transmission assembly (10) and the second transmission assembly (3) are parallel to each other and are separated by a preset distance, the first transmission assembly (10) can reciprocate clockwise, and the second transmission assembly (3) can reciprocate anticlockwise; the first turning plate assembly (11) comprises a plurality of first turning plates (112) positioned on the outer wall of the first transmission assembly (10) in the transmission direction, the first turning plates (112) can turn over by 0-90 degrees relative to the first transmission assembly (10), and the first turning plates (112) positioned on the left side of the first transmission assembly (10) are in contact with the left inner wall surface of the shell (1); the second turning plate assembly (4) comprises a plurality of second turning plates (42) positioned on the outer wall of the second transmission assembly (3) in the transmission direction, the second turning plates (42) can turn over by 0-90 degrees relative to the second transmission assembly (3), and the second turning plates (42) positioned on the right side of the second transmission assembly (3) are in contact with the right inner wall surface of the shell (1); the poking teeth (7) are fixed at preset positions on the inner wall of the shell (1) and are used for being matched with the first turning plate assembly (11) and the second turning plate assembly (4) to realize the opening and closing of the first turning plate (112) and the second turning plate (42); a first turning plate (112) and a second turning plate (42) which are positioned between the first transmission assembly (10) and the second transmission assembly (3) are partially overlapped with each other;
Wherein, still include:
-at least one first supporting wheel (9) positioned between two first driving gears (101) of said first transmission assembly (10), said first supporting wheel (9) rotating with the transmission of a first belt chain (102); and at least one second supporting wheel (6) positioned between two second driving gears (31) of the second transmission assembly (3), the second supporting wheel (6) rotating with the transmission of a second belt chain (32).
2. The turnover type toothed belt powder conveying device as claimed in claim 1, characterized in that the first transmission assembly (10) comprises two first driving gears (101) and a first belt chain (102), wherein the two first driving gears (101) are positioned at the upper side and the lower side of the inside of the first belt chain (102), and the first belt chain (102) is in bending transmission around the first driving gears (101);
the second transmission assembly (3) comprises two second driving gears (31) and a second belt chain (32), the two second driving gears (31) are positioned at the upper side and the lower side of the inside of the second belt chain (32), and the second belt chain (32) is in bending transmission around the second driving gears (31).
3. The turnover plate type toothed belt powder conveying device as claimed in claim 1, characterized in that the first driving gear (101)/second driving gear (31) is a circular wheel; the first supporting wheel (9)/the second supporting wheel (6) is a round wheel.
4. The flap type toothed belt powder conveying device according to claim 2, wherein the first belt chain (102) and the second belt chain (32) each include a plurality of link plates (1021), a first sprocket (1023), a second sprocket (1024), and a sprocket shaft (1022); the front side and the rear side of the chain plate (1021) are provided with upward bending sections; the front side and the rear side of the bottom surface of each chain plate (1021) are respectively provided with a first sprocket (1023) with a shaft hole, and the middle part of each chain plate is provided with a second sprocket (1024) with a shaft hole; the sprocket shaft (1022) is inserted into the first sprocket (1023) and the second sprocket (1024) of two adjacent link plates (1021) to connect the link plates (1021) into the first belt chain (102)/the second belt chain (32), and the second sprocket (1024) is located in the middle of the two first sprockets (1023) on the same side.
5. The flap-type toothed belt powder conveying device according to claim 4, characterized in that the first flap assembly (11) is positioned on a link plate (1021) of the first transmission assembly (10); the second flap assembly (4) is positioned on a chain plate (1021) of the second transmission assembly (3);
The first flap assembly (11) further comprises a first base (114) and a first hinge shaft (113); the first hinge shaft (113) is fixed on the first base (114) through a preset hole on the first turning plate (112) so as to enable the first turning plate (112) to rotate around the first hinge shaft (113); the first base (114) is of an angle-steel-like structure, a right-angle short side of the first base (114) is fixedly welded on the chain plate (1021), and the other right-angle long side is used for positioning the first turning plate (112) to prevent the first turning plate (112) from being continuously opened when the first turning plate (112) rotates around the first hinge shaft (113) to form 90 degrees with the chain plate (1021);
The second flap assembly (4) further comprises a second base (44) and a second hinge shaft (43); the second hinge shaft (43) is fixed on the second base (44) through a preset hole on the second turning plate (42) so as to enable the second turning plate (42) to rotate around the second hinge shaft (43); the second base (44) is of an angle-steel-like structure, a right-angle short side of the second base (44) is fixedly welded on the chain plate (1021), and the other right-angle long side is used for positioning the second turning plate (42) to prevent the second turning plate (42) from continuing to open when the second turning plate (42) rotates around the second hinge shaft (43) to form 90 degrees with the chain plate (1021).
6. The turnover plate type toothed belt powder conveying device according to claim 5, characterized in that a first sealing structure (111) is arranged on the side surface of the first turnover plate (112) and the surface contacted with the shell (1) and is used for ensuring the sealing performance of a contact part when the first turnover plate (112) rotates to be contacted with the inner wall of the shell (1); the side surface of the second turning plate (42) and the surface contacted with the shell (1) are provided with a second sealing structure (41) for ensuring the sealing performance of the contact part when the second turning plate (42) is turned to be contacted with the inner wall of the shell (1).
7. The flap-type toothed belt powder conveying device according to claim 6, characterized in that the first flap assembly (11) and the second flap assembly (4) are identical, and the assembly direction of the first flap assembly (11) and the link plate (1021) is opposite to the assembly direction of the second flap assembly (4) and the link plate (1021).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610997807.6A CN106743678B (en) | 2016-11-11 | 2016-11-11 | Turning plate type toothed belt powder conveying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610997807.6A CN106743678B (en) | 2016-11-11 | 2016-11-11 | Turning plate type toothed belt powder conveying device |
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| CN106743678A CN106743678A (en) | 2017-05-31 |
| CN106743678B true CN106743678B (en) | 2024-05-28 |
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| CN201610997807.6A Active CN106743678B (en) | 2016-11-11 | 2016-11-11 | Turning plate type toothed belt powder conveying device |
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