CN106108108B - Pipe tobacco positive pressure dense phase pneumatic conveying system - Google Patents

Pipe tobacco positive pressure dense phase pneumatic conveying system Download PDF

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Publication number
CN106108108B
CN106108108B CN201610507379.4A CN201610507379A CN106108108B CN 106108108 B CN106108108 B CN 106108108B CN 201610507379 A CN201610507379 A CN 201610507379A CN 106108108 B CN106108108 B CN 106108108B
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China
Prior art keywords
valve
pipe tobacco
gas
pneumatic
pressure chamber
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CN201610507379.4A
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Chinese (zh)
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CN106108108A (en
Inventor
邹泉
吴志峰
赵云川
潘文
陈冉
廖晓祥
段黎跃
武凯
李新
赵剑
乔晓辉
魏宏
杨光涛
徐文洁
胡宏俊
马娟
凌琳
柴俊红
赵娟
谢林云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Yiao Powder Engineering Technology Co Ltd
China Tobacco Yunnan Industrial Co Ltd
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Shanghai Yiao Powder Engineering Technology Co Ltd
China Tobacco Yunnan Industrial Co Ltd
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Application filed by Shanghai Yiao Powder Engineering Technology Co Ltd, China Tobacco Yunnan Industrial Co Ltd filed Critical Shanghai Yiao Powder Engineering Technology Co Ltd
Priority to CN201610507379.4A priority Critical patent/CN106108108B/en
Publication of CN106108108A publication Critical patent/CN106108108A/en
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Classifications

    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24CMACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/39Tobacco feeding devices
    • A24C5/392Tobacco feeding devices feeding pneumatically
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00Large containers
    • B65D88/54Large containers characterised by means facilitating filling or emptying
    • B65D88/72Fluidising devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/04Conveying materials in bulk pneumatically through pipes or tubes; Air slides
    • B65G53/06Gas pressure systems operating without fluidisation of the materials
    • B65G53/10Gas pressure systems operating without fluidisation of the materials with pneumatic injection of the materials by the propelling gas
    • B65G53/12Gas pressure systems operating without fluidisation of the materials with pneumatic injection of the materials by the propelling gas the gas flow acting directly on the materials in a reservoir
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34Details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04Bulk

Abstract

The present invention provides a kind of pipe tobacco positive pressure dense phase pneumatic conveying systems, it includes a Pressure chamber pump (4), it is connected by top input channel (12) with pipe tobacco feed bin (1), input channel (12) is equipped with inlet valve (3), Pressure chamber pump (4) lower part is connected by outlet valve (7) with output channel (11), Pressure chamber pump (4) is also connected by making-up air device (9) with output channel (11), conveying feed channel (5) is also connected on Pressure chamber pump (4), fluidizer (6) and exhaust port device (10), wherein the conveying feed channel (5) and the fluidizer (6) are connected to compressed air source.Pipe tobacco positive pneumatic conveying system of the invention can reduce pneumatic conveying energy consumption, reduce pipe tobacco breakage rate, offal be avoided to deposit and reduce fragrance loss.

Description

Pipe tobacco positive pressure dense phase pneumatic conveying system
Technical field
The invention belongs to tobacco processing equipment fields, and in particular to the air-transport system technology neck of pipe tobacco in production of cigarettes Domain.
Background technique
Existing Pneumatic conveying system for cut tobaccos is all that a drawing-in device (vibration benzvalene form, rotation drum are shared using more intaking pipes Formula and rotation benzvalene form etc.) Wind Volume negative-pressure pneumatic mode of movement.The negative-pressure pneumatic mode of movement of such Wind Volume, the mixing of gas object Uneven when output, speed is fast, large-minded, thus pipe tobacco layering occurs and cause the high phenomenon of pipe tobacco broken rate, and there are also pipe tobacco ends It is a large amount of precipitating fail to be transported away in due course, increase production cost, reduce the quality of cigarette;Each cigarette machine requires one Individually for fiber tube road, increase pipe laying space needs and additional pipeline cost.
Summary of the invention
The purpose of the present invention is intended to overcome the defect of prior art, provides one kind and takes positive pressure dense phase pneumatic conveying system institute Corresponding feed mode, when the buffer bin on cigarette machine will expect, corresponding positive pneumatic conveying system device operation;Can have The defect that effect avoids original threads feeding apparatus pipe tobacco broken rate height and pipe tobacco from being layered, a large amount of depositions for avoiding pipe tobacco end fail in due course It is transported away, avoids biggish air consumption and the excessive weathering of the original fragrance of pipe tobacco is lost, significantly reduce cigarette and be produced into This.
The purpose of the present invention is what is be achieved through the following technical solutions.
Pipe tobacco positive pressure dense phase pneumatic conveying system, including a Pressure chamber pump 4, it passes through top input channel 12 and pipe tobacco Feed bin 1 is connected, and input channel 12 is equipped with inlet valve 3, and Pressure chamber pumps 4 lower parts and is connected by outlet valve 7 with output channel 11, pressed Power storehouse pump 4 is also connected by making-up air device 9 with output channel 11, and conveying feed channel 5, fluidisation dress are also connected on Pressure chamber pump 4 6 and exhaust port device 10 are set, wherein the conveying feed channel 5 and the fluidizer 6 are connected to compressed air source.
Wherein the concentrated phase refers to that material solid gas weight ratio (material kg/ air kg) is greater than 5 preferably 5~8, more excellent It is selected as 8~10.Tobacco factory's negative pressure Pneumatic conveying system for cut tobaccos solid-gas ratio is generally dilute phase at present, i.e., (pipe tobacco kg/ air kg) < 0.5。
Preferably, the inlet valve 3, the exhaust port device 10, the outlet valve 7 are the pneumatic gas-flow closure circle of food-grade Overhead-valve.
Preferably, pneumatic control valve and non-return valve, the pneumatic control valve and non-return valve are configured on the making-up air device 9 Closed-loop control is formed when pipe tobacco conveys and turns off with the food-grade Pneumatic round-top valve on output channel 11.
Preferably, Pressure chamber pump 4 is connected with conveying feed channel 5 and exhaust port device 10, they are in pipe tobacco blanking or conveying In the process, the gas supply of automatic linkage is formed according to operation demand and gas distribution valve turns off, to guarantee pipe tobacco blanking and convey unobstructed State realized by control system and automatically switched configured with various pneumatic control valves and non-return valve etc. on pipeline, conveying feed channel with External air compressor and its gas reservoir is connected.
Preferably, Pressure chamber pump 4 and the valve on fluidizer 6, conveying feed channel 5, exhaust port device 10 and conveyance conduit Door 7 is connected, they guarantee the uniformity of gas object mixing in pipe tobacco blanking or transmission process, is carried out according to operation demand automatic The gas supply and gas distribution valve of linkage turn off, to guarantee the stabilization of pipe tobacco conveying, the conveying shape for the object gas ratio that unobstructed and holding is stable State is realized by control system and is automatically switched configured with various pneumatic control valves and non-return valve etc. on pipeline.
Preferably, exhaust port device 10 is connected with Pressure chamber pump 4, and the Pressure chamber pump 4 is filled with conveying feed channel 5 and tonifying Qi Set 9 to be connected, the different conditions in pipe tobacco blanking and conveying, formed interact it is chain cut-off mode, exhaust port device 10 The pneumatic gas-flow closure dome valve of food-grade for being suitble to pipe tobacco material, the food-grade pneumatic gas-flow closure dome will be installed on pipeline Valve forms that different interactions is chain to cut-off mode between the dome valve with other positions.
Preferably, the outlet valve 7 on the steady air flow device 8 and output channel 11 on output channel 11, there are also tonifying Qi Valve on device 9 forms the various shutdown modes of self interlocking or interconnection.
Preferably, outlet valve 7 on the valve and output channel on the valve and fluidizer 6 in feed channel 5 are conveyed According to the requirement of transport status, the combination of different shutdown modes is carried out;And the various valves on making-up air device 9 and conveying tracheae The outlet valve 7 on valve and output channel on road 5 carries out the combination of different shutdown modes according to the requirement of transport status.
Preferably, the valve on input channel (12) and Pressure chamber pump (4) delivery outlet pipeline is pneumatically inflated close for food-grade The dome valve of envelope, the sealing of the dome valve of the food-grade gas-flow closure are to pass through valve between the valve plate and valve seat of dome valve Gas injection channel on seat is to gas injection in closure gasket groove, so that sealing ring expansion is made to reach the sealing with valve plate, it is close if stopping gas injection Reinstatement state is shunk in seal, has gap with valve plate.The driving of valve is driven by execution cylinder and Fan shape cylinder, the execution gas The gas channels of the gas channels and sealing ring of cylinder and Fan shape cylinder are interlocking.
Preferably, the sealing of the pneumatic gas-flow closure dome valve valve of the food-grade is embedded in switching at runtime valve contact surface Inside, by the gas injection channel on dynamic valve body to gas injection in closure gasket groove, so that sealing ring expansion be made to reach and firm banking The sealing of contact surface, if stopping gas injection, sealing ring shrinks reinstatement state, has gap with firm banking contact surface.The drive of valve Dynamic to be driven by execution cylinder, their gas channels and the gas channels of sealing ring are interlocking.
The present invention has the advantages that
Compared with traditional vacuum suction carrys out pneumatic conveying pipe tobacco, the present invention creatively uses concentrated phase positive pneumatic transport Mode carrys out pneumatic conveying pipe tobacco.It is equivalent transformation that positive pneumatic transport, which is seemed with vacuum suction pneumatic conveying, but actually not so.This The concentrated phase positive pneumatic transport mode of invention obtains following unexpected technical effect: solid gas is relatively high, and (pipe tobacco kg/ is empty Gas kg) it may be up to 8~10, highest possible up to 16.Conveying capacity greatly is referred to, air consumption very little significantly reduces energy Consumption, reduces operating cost.Conveying speed is low, and pipeline and elbow abrasion are small, also greatly reduces the breakage rate of pipe tobacco;It keeps Pipe tobacco ingredient it is uniform;The a large amount of depositions for avoiding pipe tobacco end fail to be transported away in due course, reduce the unnecessary stream of fragrance It loses;Reduce the quantity of main delivery pipe.
Food Pneumatic round-top valve is widely used in system, using gas-flow closure, realizes in wiretap, is not only sealed, connects Contacting surface abrasion is small, and the contact in operation with pipe tobacco is soft, and it is broken to avoid pipe tobacco.
Detailed description of the invention
Fig. 1 is system structure diagram of the invention.
Fig. 2 is the schematic front view of Pressure chamber pump below pipe tobacco feed bin of the invention, peripheral conduits configuration and gas circuit configuration.
Fig. 3 is the schematic top plan view of Pressure chamber pump, peripheral conduits and gas circuit configuration below pipe tobacco feed bin of the present invention.
Wherein appended drawing reference meaning is as follows:
1, pipe tobacco feed bin;2, gate valve;3, inlet valve;4, Pressure chamber pumps;5, feed channel is conveyed;6, fluidizer;7, go out Mouth valve;8, steady air flow device;9, making-up air device;10, exhaust port device;11, output channel;12, input channel;41, material position Meter;51, air filter;52, pressure-regulating valve;61, control valve is fluidized;81, current stabilization Pneumatic valve;91, tonifying Qi Pneumatic valve.
Specific embodiment
The invention will be further described for following embodiments combination attached drawing, but the present invention is not limited to implement shown in attached drawing Scheme is also merely to illustrate the possible embodiment of the present invention, however is not intended to limit the invention the scope to be protected.
Pipe tobacco positive pneumatic conveying system of the invention, device are by a set of Pressure chamber pump group into each Pressure chamber pump On have a conveyance conduit, can have multiple silo roofs on each conveyance conduit point to valve, multiple points correspond to different cigarette to valve The buffer bin of machine.
Every suit positive pneumatic conveying system of the present invention supplies gas source by individual or shared air compressor, generally It is the gas buffer tank that more set pipe tobacco positive pneumatic conveying systems share an air compressor, gas buffer tank passes through check Valve, regulating valve etc. are connected with the conveyance conduit that Pressure chamber pumps.
Every suit positive pneumatic conveying system of the present invention, storehouse pump be equipped with unique fluidizer, every set fluidizer with Valve linkage on the fluidizer of pipe tobacco feed bin, exhaust apparatus and conveyance conduit match and, so that blanking is unimpeded, keep material gas The a certain uniform state of mixing keeps the stabilization of a certain state of material gas mixing in conveying, and all valves on pipeline are gas The valve of dynamic driving, by the on or off in pipeline of solenoid valve control gas.
Storehouse pump fluidizer, the valve on conveyance conduit and tonifying Qi dress on every suit positive pneumatic conveying system of the present invention It sets link and matches and so that the holding that pipe tobacco conveys expects that a certain uniform state that gas mixes and conveying are unimpeded, reduce gas object The collision friction to pipeline and elbow is mixed, has various pneumatic operated valves and non-return valve on device, pneumatic operated valve is by solenoid valve control gas The on or off in pipeline of body.
As shown in Figure 1 to Figure 3, the present embodiment is to pump the pipe tobacco of pipe tobacco feed bin by positive pressure thick and thin phase burner storehouse, Pipe tobacco is delivered to cigarette machine by a root canal road and receives surge bunker.
Conveying feed channel 5 is connected with the pressure surge tank of compressed air source, is adjusted by air filter 51 and pressure Valve 52 and other associated pipe attachmentes are connected with Pressure chamber pump 4, provide the main conveying gas of pipe tobacco Condensed transportation.Tobacco material Several openings are arranged at 1 top of storehouse, wherein having the pipe tobacco machinery conveying main-inlet of upstream, the connector with deduster, with level-sensing device Connector pumps the connector of 4 exhaust pipes with storehouse, enters the blanking port of Pressure chamber pump there are also pipe tobacco blanking and input channel 12 connects It connects.Pass through on input channel 12 and the attachmentes such as overhauls gate valve 2, pneumatic food-grade gas-flow closure dome valve 3 and be flexible coupling for pipe tobacco Feed bin 1 and concentrated phase Pressure chamber pump 4 connect, and realize the channel of pipe tobacco entrance.Exhaust port device 10 is that food-grade inflation is close Dome valve is sealed, it is connect by other associated conduit attachmentes with Pressure chamber pump 4 and feed bin 1 or pipe tobacco output channel 11, in time By concentrated phase pump in residual air discharge, realize pipe tobacco feed bin 1 and concentrated phase Pressure chamber pump pressure balance peace slide material.
The interface of fluidizer 6 is distributed in the position at the middle part of Pressure chamber pump 4 or more, defeated according to the size of storehouse pump and single batch The size for the amount of sending is equipped with different numbers and size air inlet, it constitutes stream by the attachment of fluidisation control valve 61 and fluidisation pipeline Disguise the main body set, auxiliary, which is realized, expects gas admixture required for pipe tobacco thick and thin phase burner.In the output channel 11 of pipe tobacco On be connected to thick and thin phase burner making-up air device 9, they pass through associated conduit attachment and main conveying feed channel 5 by tonifying Qi Pneumatic valve 91 Gas source access is realized in connection.When exporting pipe tobacco to output channel, conveying feed channel 5, fluidizer 6, making-up air device 9 are mutual Cooperation realizes that pipe tobacco is transported on cigarette machine with the state of strength concentrated phase according to the logic co-operating of thick and thin phase burner Pipe tobacco buffering receives storehouse.
By Pressure chamber pump 4 and output channel connection outlet valve 7 be food-grade gas-flow closure dome valve, pipe tobacco through its into Enter output channel 11, the pipe tobacco buffering entered back on cigarette machine receives storehouse and connects.
In this embodiment, pipe tobacco pass through equipment sequence successively: pipe tobacco feed bin 1 → gate valve, 2 → inlet valve, 3 → pressure Storehouse pumps 4 → outlet valve, 7 → output channel, 11 → cigarette machine buffering and receives storehouse feed bin.Pipe tobacco is delivered to concentrated phase pressure by upstream equipment Power storehouse pump top feed bin, when needed pipe tobacco by gravity fall into Pressure chamber pump, via Pressure chamber pump pass through closed pipeline by Pipe tobacco is delivered to the pipe tobacco buffer bin on cigarette machine by the gas of certain pressure, and conveying gas used on feed bin by being arranged Deduster enters the discharge of environment of plant dust removal installation.
Concentrated phase Pressure chamber pump 4 is equipped with level-sensing device, its signal is connected to system control terminal, it indicates storehouse and pumps interior pipe tobacco Whether fill up and interconnect common one conveying of triggering with other signals and recycle, when pipe tobacco falls into Pressure chamber pump 4 from pipe tobacco feed bin 1 When, exhaust port device 10 will be opened, and gas in storehouse is discharged into the deduster on feed bin or conveyance conduit.Convey feed channel 5, pressure There is pressure transmitter on power storehouse pump 4, output channel 11, making-up air device 9 and fluidizer 6, their signal is connected to control terminal, It is pumped in Pressure chamber and stops blanking, when recycling into pipe tobacco pneumatic conveying, the immediate status of these signals feeds back to control system in due course System carries out sequence movement to the above equipment by the control logic of air-transport system, realizes concentrated phase strength of the pipe tobacco in pipeline Conveying.Buffer bin on cigarette machine has height level-sensing device, their signal is connected to control terminal, a signal by it through controlling System processed issues, and forms unified consistent movement.
The Pneumatic conveying system for cut tobaccos of this embodiment is completed to automatically control operation by PLC or DCS in factory.In practical application In, it can be arranged in parallel 2 or more same devices under a pipe tobacco feed bin, realize that pipe tobacco is continuous in output channel Conveying, or more point cigarette machine pipe tobacco demand.

Claims (9)

1. pipe tobacco positive pressure dense phase pneumatic conveying system, which is characterized in that pump (4) including a Pressure chamber, it is inputted by top Pipeline (12) is connected with pipe tobacco feed bin (1), and input channel (12) is equipped with inlet valve (3), and Pressure chamber pump (4) lower part passes through outlet Valve (7) is connected with output channel (11), and Pressure chamber pump (4) is also connected by making-up air device (9) with output channel (11), Pressure chamber Conveying feed channel (5), fluidizer (6) and exhaust port device (10) are also connected on pump (4), wherein the conveying feed channel (5) it is connected to the fluidizer (6) with compressed air source;Steady air flow device (8) and output on output channel (11) Outlet valve (7) on pipeline, there are also the various shutdown modes that the valve on making-up air device (9) forms self interlocking or interconnection;
The interface of the fluidizer (6) is distributed in the position at the middle part of Pressure chamber pump (4) or more, pumps (4) according to Pressure chamber The size of size and single batch of conveying capacity is equipped with different numbers and size air inlet, by fluidisation control valve (61) and fluidizes pipeline Attachment constitutes the main body of fluidizer, and auxiliary, which is realized, expects gas admixture required for pipe tobacco thick and thin phase burner;In pipe tobacco Output channel (11) on be connected to thick and thin phase burner making-up air device (9), the making-up air device (9) is logical by tonifying Qi Pneumatic valve (91) Piping attachment is connect with conveying feed channel (5), realizes gas source access;When exporting pipe tobacco to output channel (11), gas is conveyed Pipeline (5), fluidizer (6), making-up air device (9) cooperate, real according to the logic co-operating of positive pressure thick and thin phase burner Existing pipe tobacco is transported to the buffering of the pipe tobacco on cigarette machine with the state of positive pressure concentrated phase strength and receives storehouse.
2. pipe tobacco positive pressure dense phase pneumatic conveying system according to claim 1, which is characterized in that the inlet valve (3), institute State exhaust port device (10), the outlet valve (7) is the pneumatic gas-flow closure dome valve of food-grade.
3. pipe tobacco positive pressure dense phase pneumatic conveying system according to claim 1, which is characterized in that the making-up air device (9) Upper to be configured with pneumatic control valve and non-return valve, the pneumatic control valve and non-return valve and the food-grade on output channel (11) are pneumatic Dome valve forms closed-loop control when pipe tobacco conveys and turns off.
4. pipe tobacco positive pressure dense phase pneumatic conveying system according to claim 1, which is characterized in that Pressure chamber pump (4) with it is defeated Air duct (5) and exhaust port device (10) are connected, they are formed certainly in pipe tobacco blanking or transmission process according to operation demand The gas supply of dynamic linkage and gas distribution valve shutdown, to guarantee pipe tobacco blanking and convey unobstructed state, configured with various pneumatic on pipeline Regulating valve and non-return valve are realized by control system and are automatically switched that conveying feed channel and external air compressor and its gas are stored up Tank is connected.
5. pipe tobacco positive pressure dense phase pneumatic conveying system according to claim 1, which is characterized in that Pressure chamber pumps (4) and stream Makeup sets (6), conveying feed channel (5), exhaust port device (10) and outlet valve (7) and is connected, they are in pipe tobacco blanking or convey Cheng Zhong guarantees the uniformity of gas object mixing, carries out the gas supply of automatic linkage according to operation demand and gas distribution valve turns off, to guarantee The stabilization of pipe tobacco conveying, transport status that is unobstructed and keeping stable object gas ratio, on pipeline configured with various pneumatic control valves and Non-return valve is realized by control system and is automatically switched.
6. pipe tobacco positive pressure dense phase pneumatic conveying system according to claim 1, which is characterized in that exhaust port device (10) with Pressure chamber pumps (4) and is connected, and the Pressure chamber pump (4) is connected with conveying feed channel (5) and making-up air device (9), in pipe tobacco blanking With different conditions when conveying, the chain mode of cut-offfing that interacts is formed, is installed on the pipeline of exhaust port device (10) and is suitble to pipe tobacco The pneumatic gas-flow closure dome valve of the food-grade of material, dome valve of the pneumatic gas-flow closure dome valve of food-grade with other positions Between form that different interactions is chain to cut-off mode.
7. pipe tobacco positive pressure dense phase pneumatic conveying system according to claim 1, which is characterized in that in conveying feed channel (5) Valve and fluidizer (6) on valve and output channel (11) on outlet valve (7) according to the requirement of transport status, carry out The combination of different shutdown modes;And the various valves on making-up air device (9) and conveying feed channel (5) on valve and output Outlet valve (7) on pipeline carries out the combination of different shutdown modes according to the requirement of transport status.
8. pipe tobacco positive pressure dense phase pneumatic conveying system according to claim 1, which is characterized in that input channel (12) and pressure Power storehouse pumps the dome valve that the valve on (4) delivery outlet pipeline is food-grade gas-flow closure, the dome of the food-grade gas-flow closure The sealing of valve be between the valve plate and valve seat of dome valve, by the gas injection channel on valve seat to gas injection in closure gasket groove, thus Sealing ring expansion is set to reach the sealing with valve plate, if stopping gas injection, sealing ring shrinks reinstatement state, has gap with valve plate;Valve The driving of door is driven by execution cylinder and Fan shape cylinder, the gas circuit of the execution cylinder and Fan shape cylinder gas channels and sealing ring Channel is interlocking.
9. pipe tobacco positive pressure dense phase pneumatic conveying system according to claim 8, which is characterized in that the food-grade inflation is close The sealing of the dome valve of envelope is the inside embedded in switching at runtime valve contact surface, by the gas injection channel on dynamic valve body to sealing ring Gas injection in slot, so that sealing ring expansion be made to reach the sealing with firm banking contact surface, if stopping gas injection, sealing ring, which is shunk, to be restored Original state has gap with firm banking contact surface;The driving of valve is driven by execution cylinder, the gas channels of the execution cylinder Gas channels with sealing ring are interlocking.
CN201610507379.4A 2016-07-01 2016-07-01 Pipe tobacco positive pressure dense phase pneumatic conveying system Active CN106108108B (en)

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CN106108108B true CN106108108B (en) 2019-03-29

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CN106979990B (en) * 2017-05-19 2023-10-27 云南中烟工业有限责任公司 Constant-humidity pressure bin for cigarette smoking machine and smoking experiment method thereof
CN107510094B (en) * 2017-10-13 2019-03-15 南京睿都电气技术有限公司 A kind of tobacco thread by wind force delivery method and device
CN107814203A (en) * 2017-11-23 2018-03-20 北京神雾电力科技有限公司 A kind of new type high temperature semicoke air-transport system
CN108974947A (en) * 2018-08-22 2018-12-11 中国海洋石油集团有限公司 A kind of drilling platforms drilling cuttings conveying device and its control method
CN109607203A (en) * 2018-11-29 2019-04-12 云南中烟工业有限责任公司 A kind of segmented positive pressure concentrated phase strength pipe tobacco transportation system and delivery method
CN110386460B (en) * 2019-07-16 2021-03-19 宁波伊布科技有限公司 Powder sequencing batch type feeding and conveying device for multiple systems and using method thereof
CN110679998B (en) * 2019-09-12 2022-04-01 云南中烟工业有限责任公司 Cigarette production process capable of simultaneously increasing content of 8 main aroma substances in cigarette

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