CN205602707U - Solid powder air conveying injection apparatus - Google Patents

Solid powder air conveying injection apparatus Download PDF

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Publication number
CN205602707U
CN205602707U CN201620420219.1U CN201620420219U CN205602707U CN 205602707 U CN205602707 U CN 205602707U CN 201620420219 U CN201620420219 U CN 201620420219U CN 205602707 U CN205602707 U CN 205602707U
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China
Prior art keywords
nozzle
housing
receiving chamber
chamber
air inlet
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Active
Application number
CN201620420219.1U
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Chinese (zh)
Inventor
黄亚继
杨钊
关正文
李睦
周军
谢江坤
王健
何敏
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GCL ENGINEERING Ltd
Southeast University
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GCL ENGINEERING Ltd
Southeast University
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Priority to CN201620420219.1U priority Critical patent/CN205602707U/en
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Abstract

The utility model discloses a solid powder air conveying injection apparatus, including the casing that has receiving chamber, hybrid chamber, diffusion chamber and conveying line still be equipped with feed inlet, discharge gate and air inlet on the casing, feed inlet and discharge gate are located the receiving chamber, the air inlet is located the receiving chamber front end communicates its characterized in that with the nozzle of setting in the casing: the gliding setting of nozzle is in in the casing the bottom of nozzle is provided with one and is used for automatically regulated the nozzle is at between jet exit and hybrid chamber enter the mouth the down resilient means apart from S of gas pressure effect. The utility model discloses a distance that adjustment adjust knob and carrier gas pressure change between jet exit to the hybrid chamber entry improves injection apparatus efficiency. When the transport is smooth, unload the material of ash bucket lower part ball valve discharge delay in the receiving chamber through opening, solve the jam problem fast. This equipment structure is simple, convenient operation, low in production cost.

Description

A kind of pressed powder pneumatic conveying injection apparatus
Technical field
This utility model relates to a kind of pressed powder pneumatic conveying injection apparatus, particularly to a kind of jet expansion with hybrid chamber entrance apart from adjustable pneumatic conveying injection apparatus.
Background technology
Coal-fired and Refuse Incineration Process can produce Hg, SO3, the harmful substance such as two English, they pollute to atmospheric environment and then endanger the healthy of the mankind by the discharge of flue gas, the most how to its carry out economically and efficiently be treated as the problem that the whole world is in the urgent need to address.
At present, one of processing method that purifying smoke commonly uses is adsorbent method, and the general device used is gas-solid injector.By the way of air conveying, by sorbent injection to the flue gas of flowing, make adsorbent carry out with harmful substance contacting and adsorbing to come it is removed, and eventually through cleaner, they are removed, reach the purpose of purifying smoke.
Tradition gas-solid injector basic structure mainly has hopper, nozzle, receiving chamber, hybrid chamber, diffusion chamber and transfer pipeline.After the compressed air of certain pressure level flows through gradual shrinkage nozzle, form high-speed jet.This jet produces volume to the gas receiving indoor during advancing and inhales and carry, thus forms certain negative pressure.Material enters receiving chamber under the effect of pressure reduction and gravity, and inhales at the volume of gas jet and carry lower entrance hybrid chamber.In hybrid chamber, the further mix homogeneously of gas-particle two-phase, with after through diffusion chamber supercharging enter transfer pipeline.
But the feature that traditional gas-solid injector is fixed due to its structure, when actual pressed powder emitted dose changes, jet expansion cannot be carried out regulating accordingly to the distance of hybrid chamber entrance, there is the problem that material transfer efficiency is low, affects the varying duty performance of gas-solid injector.During further, since solid and gas amount changes, also there is respective change in material holdup time in receiving chamber, it is likely that causes the blocking of ejector, affect system stable operation, and how under the conditions of varying duty, Quick dredging gas-solid injector is also a problem needing solution.
Summary of the invention
Technical problem:This utility model purpose is for above-mentioned prior art, it is provided that a kind of simple in construction, can conveniently regulate jet expansion to the distance of hybrid chamber entrance, solve the problem that tradition gas-solid injector transfer efficiency when meeting change is low;Below receiving chamber, set up dump skip, it is possible to discharged from ejector by the material being trapped in receiving chamber in time, solve the conveying blockage problem produced because of material lagging.
Technical scheme:
A kind of pressed powder pneumatic conveying injection apparatus, including having receiving chamber, hybrid chamber, diffusion chamber and the housing of transfer pipeline, it is additionally provided with charging aperture on the housing, discharging opening and air inlet, described charging aperture and discharging opening are positioned at described receiving chamber, described air inlet is positioned at described receiving chamber front end and connects with the nozzle being arranged on housing, it is characterized in that: what described nozzle slided is arranged in described housing, one it is provided with for being automatically adjusted described nozzle elastic device of spacing S of jet expansion and hybrid chamber entrance under gas pressure effect in the bottom of described nozzle.
Described elastic device includes adjusting knob, spring dead plate and spring, described spring dead plate is positioned at described housing, described adjusting knob one end is placed in described hull outside, the adjusting knob other end is connected with described spring dead plate and is used for the position adjusting described spring dead plate in described housing, and described spring is arranged between spring dead plate and nozzle bottom.
Being provided with two sealing surfaces between described housing and nozzle, these two sealing surfaces are positioned at the both sides of described air inlet.
Connect at described charging aperture and have the rotary pocket feeder driven by frequency conversion motor.
Connecting at described discharging opening and have ball valve, connecting at described air inlet has compressed air inlet pipe.
Immediately below described receiving chamber, dump skip is installed, at described receiving chamber material inlet and dump skip on the same axis.
Described afterbody adjusting knob can axially control jet expansion to the initial length of hybrid chamber entrance distance S, then by controlling compressed-air actuated pressure, utilizes pressure reduction and spring that S value carries out follow-up micro-be automatically adjusted.
Beneficial effect:
(1) this utility model pressed powder pneumatic conveying injection apparatus, in hull outside, adjusting knob is set, it is connected by female thread with housing, according to material, displacement and the difference of fed distance, by rotating tail knob, distance S of jet expansion to hybrid chamber entrance is carried out initial adjustment;In enclosure interior, movable mechanism 15 is set, i.e. at A, B two sealing surface, it is respectively symmetrically in cavity between nozzle front portion appendix and housing and arranges two and be fixed on appendix and axially slidable bead, by controlling compressed-air actuated pressure, utilize pressure reduction that S value carries out follow-up micro-be automatically adjusted.Owing to jet is after nozzle sprays, under various drag effect, speed can be gradually lowered, and static pressure gradually rises.Therefore the increase of S value, in causing receiving chamber, stress level raises, and is unfavorable for the material entrance from hopper, reduces the efficiency of ejector.If reduce S value simultaneously, although stress level reduces in making receiving chamber, but the ambient atmos suction volume entering induction system from material inlet can be increased, jet does not only exist the equilibrium of velocity field with ambient atmos, there is also the balancing procedure of pressure field simultaneously, therefore material energy expenditure is compared bigger, the same efficiency reducing ejector.So there is an optimum in S.This utility model is by the coordinated of mechanism described above, it is possible under different materials, displacement and fed distance, finds optimal S value, improves the efficiency of gas-solid injector.
(2) this utility model pressed powder pneumatic conveying injection apparatus, arranges dump skip on the same axis of material inlet below receiving chamber, mounting ball valve below dump skip, is conducive to being detained the discharge of material, it is ensured that the smooth and easy operation of ejector, cost-effective.
(3) this utility model pressed powder pneumatic conveying injection apparatus, arranges frequency control rotary pocket feeder at material inlet, according to actual needs, can change the flow of material in time.
(4) this utility model pressed powder pneumatic conveying injection apparatus, simple in construction, easy to operate, production cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model pressed powder pneumatic conveying injection apparatus;
Have as shown in the figure: hopper 1, frequency conversion motor 2, receiving chamber 3, hybrid chamber 4, diffusion chamber 5, transfer pipeline 6, dump skip 7, ball valve 8, compressed air inlet pipe 9, adjusting knob 10, spring 11, housing 12, nozzle 13, rotary pocket feeder 14, movable mechanism 15.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this utility model is elaborated:
As shown in Figure 1, a kind of pressed powder pneumatic conveying injection apparatus, its structure includes hopper 1, frequency conversion motor 2, receiving chamber 3, hybrid chamber 4, diffusion chamber 5, transfer pipeline 6, dump skip 7, ball valve 8, compressed air inlet pipe 9, adjusting knob 10, spring 11, housing 12, nozzle 13, rotary pocket feeder 14 and movable mechanism 15;Spring 11 and movable mechanism 15 are installed on enclosure interior, and adjusting knob 10 is located at housing 12 afterbody, and compressed air inlet pipe 9 enters the anterior appendix of nozzle 13 by housing 12.Movable mechanism 15 is at A, B two sealing surface, is respectively symmetrically and arranges two and be fixed on appendix and axially slidable bead in the cavity between nozzle front portion appendix and housing.
This utility model pressed powder pneumatic conveying injection apparatus, in hull outside, adjusting knob 10 is set, it is connected by female thread with housing 12, according to material, displacement and the difference of fed distance, by rotating tail knob 10, distance S of jet expansion to hybrid chamber entrance is carried out initial adjustment;Movable mechanism 15 is set inside housing 12, by controlling compressed-air actuated pressure, utilizes pressure reduction that S value carries out follow-up micro-be automatically adjusted.By both coordinated, it is possible under different materials, displacement and fed distance, find optimal S value, improve the efficiency of gas-solid injector.
This utility model pressed powder pneumatic conveying injection apparatus, arranges dump skip on the same axis of material inlet below receiving chamber, is conducive to being detained the discharge of material, it is ensured that the smooth and easy operation of ejector, cost-effective.
This utility model pressed powder pneumatic conveying injection apparatus, is provided with ball valve below dump skip, facilitates the discharge of material.
This utility model pressed powder pneumatic conveying injection apparatus, arranges frequency control rotary pocket feeder at material inlet, according to actual needs, can change the flow of material in time.
This utility model pressed powder pneumatic conveying injection apparatus, simple in construction, easy to operate, production cost is low.

Claims (6)

1. a pressed powder pneumatic conveying injection apparatus, including having receiving chamber, hybrid chamber, diffusion chamber and the housing of transfer pipeline, it is additionally provided with charging aperture on the housing, discharging opening and air inlet, described charging aperture and discharging opening are positioned at described receiving chamber, described air inlet is positioned at described receiving chamber front end and connects with the nozzle being arranged on housing, it is characterized in that: described nozzle is arranged in described housing by what a movable mechanism slided, one it is provided with for being automatically adjusted described nozzle elastic device of spacing S of jet expansion and hybrid chamber entrance under gas pressure effect in the bottom of described nozzle.
Pressed powder pneumatic conveying injection apparatus the most according to claim 1, it is characterized in that: described elastic device includes adjusting knob, spring dead plate and spring, described spring dead plate is positioned at described housing, described adjusting knob one end is placed in described hull outside, the adjusting knob other end is connected with described spring dead plate and is used for the position adjusting described spring dead plate in described housing, and described spring is arranged between spring dead plate and nozzle bottom.
Pressed powder pneumatic conveying injection apparatus the most according to claim 1 and 2, it is characterized in that: between described housing and nozzle, be provided with two sealing surfaces, these two sealing surfaces are positioned at the both sides of described air inlet, and described movable mechanism is for being arranged on described nozzle and the direct ball of housing.
Pressed powder pneumatic conveying injection apparatus the most according to claim 3, it is characterised in that: connect at described charging aperture and have the rotary pocket feeder driven by frequency conversion motor.
Pressed powder pneumatic conveying injection apparatus the most according to claim 3, it is characterised in that: connecting at described discharging opening and have ball valve, connecting at described air inlet has compressed air inlet pipe.
Pressed powder pneumatic conveying injection apparatus the most according to claim 3, it is characterised in that: immediately below described receiving chamber, dump skip is installed, at described receiving chamber material inlet and dump skip on the same axis.
CN201620420219.1U 2016-05-11 2016-05-11 Solid powder air conveying injection apparatus Active CN205602707U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620420219.1U CN205602707U (en) 2016-05-11 2016-05-11 Solid powder air conveying injection apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620420219.1U CN205602707U (en) 2016-05-11 2016-05-11 Solid powder air conveying injection apparatus

Publications (1)

Publication Number Publication Date
CN205602707U true CN205602707U (en) 2016-09-28

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Application Number Title Priority Date Filing Date
CN201620420219.1U Active CN205602707U (en) 2016-05-11 2016-05-11 Solid powder air conveying injection apparatus

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105775751A (en) * 2016-05-11 2016-07-20 东南大学 Adjustable gas-solid injector
CN107499943A (en) * 2017-08-31 2017-12-22 煤科院节能技术有限公司 The loader that a kind of double discharge valves couple with Venturi tube

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105775751A (en) * 2016-05-11 2016-07-20 东南大学 Adjustable gas-solid injector
CN107499943A (en) * 2017-08-31 2017-12-22 煤科院节能技术有限公司 The loader that a kind of double discharge valves couple with Venturi tube
CN107499943B (en) * 2017-08-31 2019-07-19 煤科院节能技术有限公司 A kind of loader that double discharge valves are coupled with Venturi tube

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