CN111017566A - Powder material conveying device for fly ash spraying chelation treatment - Google Patents
Powder material conveying device for fly ash spraying chelation treatment Download PDFInfo
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- CN111017566A CN111017566A CN201911359831.7A CN201911359831A CN111017566A CN 111017566 A CN111017566 A CN 111017566A CN 201911359831 A CN201911359831 A CN 201911359831A CN 111017566 A CN111017566 A CN 111017566A
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- pipeline
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- negative pressure
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- powder material
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- 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
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/28—Systems utilising a combination of gas pressure and suction
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- 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
-
- 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
- B65G53/48—Screws or like rotary conveyors
Abstract
In order to overcome the problems of insufficient powder fluidity and inaccurate conveying and metering in the existing spraying and chelating treatment system, the invention provides a powder material conveying device for fly ash spraying and chelating treatment, which sequentially comprises a negative pressure feeding system, a discharging system and a quantitative feeding system according to the conveying direction of powder materials. The method comprises the following steps that materials sequentially pass through a negative-pressure feeding system and a discharging system and then enter a quantitative feeding system, the quantitative feeding system is used for feeding materials at intervals, feeding amount is stabilized in a proper range, and then airflow generated by a Gorgon euryale fan of the quantitative feeding system is used for spraying powder materials into a flue gas purification system for chelation treatment; still set up the activation device, the activation device is including activation storehouse and compressed air inlet pipeline, the activation storehouse sets up negative pressure feeding system below, and the powder material is at the ejection of compact in-process of sealed storehouse body bottom, spouts compressed air into the activation storehouse of activation device through compressed air inlet pipeline, prevents to activate the interior material bridging of storehouse, ensures that the powder material gets into the system of unloading smoothly.
Description
Technical Field
The invention relates to a powder material conveying device, in particular to a powder material conveying device for fly ash spraying chelation treatment.
Background
With the rapid development of science and technology, equipment and facilities in the aspect of environmental protection and treatment are continuously updated and upgraded, and various novel and efficient pollutant control methods are developed. For example, in the field of household garbage incineration disposal and sludge incineration disposal, an incineration fly ash spraying chelation treatment method appears, in which a solid powder fly ash chelating agent is directly sprayed into flue gas by using a deacidification system, so that the chelating agent is directly mixed with the flue gas powder, and the fly ash in the flue gas completes a chelation process.
The method is based on a highly effective inorganic chelating agent, which is made into a solid powder state for ease of delivery. According to the research of powder science, the powder has the flowability similar to that of liquid, the compressibility similar to that of the liquid and the deformation resistance of solid, the flowability of the powder is far lower than that of the liquid, so that the accuracy of conveying and metering in the actual production process is influenced, when the dosage of the medicament needs to be adjusted, the adjustment amount cannot be fed back timely and accurately, and the medicament contains a sodium bicarbonate component, so that the precise metering and conveying of the sodium bicarbonate are influenced by multiple adverse effects caused by the physicochemical properties of easy decomposition and deliquescence of the sodium bicarbonate under heating.
Disclosure of Invention
In order to overcome the problems of insufficient powder fluidity and inaccurate conveying and metering in the existing spraying and chelating treatment system, the invention provides a powder material conveying device for fly ash spraying and chelating treatment, which sequentially comprises a negative pressure feeding system, a discharging system and a quantitative feeding system according to the conveying direction of powder materials. The method comprises the following steps that materials sequentially pass through a negative-pressure feeding system and a discharging system and then enter a quantitative feeding system, the quantitative feeding system is used for feeding materials at intervals, feeding amount is stabilized in a proper range, and then airflow generated by a Gorgon euryale fan of the quantitative feeding system is used for spraying powder materials into a flue gas purification system for chelation treatment; still set up the activation device, the activation device is including activation storehouse and compressed air inlet pipeline, the activation storehouse sets up negative pressure feeding system below, and the powder material is at the ejection of compact in-process of sealed storehouse body bottom, spouts compressed air into the activation storehouse of activation device through compressed air inlet pipeline, prevents to activate the interior material bridging of storehouse, ensures that the powder material gets into the system of unloading smoothly.
The technical scheme adopted by the invention for solving the technical problems is as follows: a powder material conveying device for fly ash spraying chelation treatment is characterized by sequentially comprising a negative pressure feeding system, a discharging system and a quantitative feeding system according to the conveying direction of powder materials,
the negative pressure feeding system comprises a ton bag unpacking machine, a spiral feeding machine, an air filter, a Roots vacuum pump, an air exhaust pipeline, a bin top dust remover, a sealed bin body, a patting device, a star-shaped discharge valve, a discharge pipeline and a negative pressure feeding pipeline; the bin top dust remover is arranged at the top of the sealed bin body, the air exhaust pipeline is connected between the Roots vacuum pump and the bin top dust remover, one end of the negative pressure feeding pipeline is connected with the feed inlet of the bin top dust remover, the other end of the negative pressure feeding pipeline is an air inlet, an air filter is arranged at the air inlet, the air exhaust port of the Roots vacuum pump is connected with the air exhaust port of the bin top dust remover through the air exhaust pipeline so that the inner cavity of the bin top dust remover generates negative pressure, a flapping device is also arranged at the discharge port of the ton bag unpacking machine, the flapped powder material enters the feed inlet of the spiral feed machine and then is discharged into the negative pressure feeding pipeline, the powder material discharged into the negative pressure feeding pipeline is sucked into the negative pressure cavity of the bin top dust remover through the negative pressure feeding pipeline, and the discharge pipeline is arranged at the bottom of the bin top dust remover,
the discharging system comprises a discharging pipe, a manual gate valve and a star-shaped discharging valve in sequence according to the material conveying direction,
the quantitative feeding system comprises a disk feeder material activation bin, a feeding chamber with a weighing function and a material spraying pipeline which are sequentially arranged according to the powder material conveying direction, and further comprises a disk stirring motor for driving the disk feeder material activation bin to rotate, a feeding motor for dosing the feeding chamber with the weighing function and a Roots blower, wherein the powder material is sprayed to the material spraying pipeline by airflow generated by the Roots blower,
the device is characterized by further comprising an activating device, wherein the activating device comprises an activating bin of the activating device and a compressed air inlet pipeline, the activating bin of the activating device is arranged below the sealed bin body and is positioned at the front end of the discharging system, and powder materials enter the activating bin of the activating device through a discharging pipeline at the bottom of the sealed bin body.
The invention preferably adopts the scheme that a powder flowmeter is arranged at the tail end of the material spraying pipeline.
The invention has the preferable scheme that a dust removal pipeline is further arranged, one end of the dust removal pipeline is connected with a dust removal port of the bin top dust remover, and the other end of the dust removal pipeline is connected with a dust collection port of the material activation bin of the disc feeder.
The invention has the beneficial effects that: in order to overcome the problems of insufficient powder fluidity and inaccurate conveying and metering in the existing spraying and chelating treatment system, the invention provides a powder material conveying device for fly ash spraying and chelating treatment, which sequentially comprises a negative pressure feeding system, a discharging system and a quantitative feeding system according to the conveying direction of powder materials. The method comprises the following steps that materials sequentially pass through a negative-pressure feeding system and a discharging system and then enter a quantitative feeding system, the quantitative feeding system is used for feeding materials at intervals, feeding amount is stabilized in a proper range, and then airflow generated by a Gorgon euryale fan of the quantitative feeding system is used for spraying powder materials into a flue gas purification system for chelation treatment; still set up the activation device, the activation device is including activation storehouse and compressed air inlet pipeline, the activation storehouse sets up negative pressure feeding system below, and the powder material is at the ejection of compact in-process of sealed storehouse body bottom, spouts compressed air into the activation storehouse of activation device through compressed air inlet pipeline, prevents to activate the interior material bridging of storehouse, ensures that the powder material gets into the system of unloading smoothly.
Drawings
Fig. 1 is a schematic diagram of the arrangement of the apparatus according to the first embodiment of the present invention.
Fig. 2 is a schematic diagram of the arrangement of the apparatus according to a second embodiment of the present invention.
Fig. 3 is a schematic view of the arrangement of the apparatus according to the third embodiment of the present invention.
In the figure:
1. the device comprises a negative pressure feeding system, a 1.1 ton bag unpacking machine, a 1.2 rotary feeder, a 1.3 air filter, a 1.4 Roots vacuum pump, a 1.4A air pumping pipeline, a 1.5 bin top dust remover, a 1.5A feeding port, a 1.5B air pumping port, a 1.5C dust removing port, a 1.6 sealed bin body, a 1.7 flapping device, a 1.8 star-shaped discharge valve, a 1.8A discharging pipeline and a 1.9 negative pressure feeding pipeline;
2. the device comprises a discharging system, a 2.1 manual gate valve, a 2.2 star-shaped discharger and a 2.3 discharging pipeline;
3. a quantitative feeding system, a 3.1 disk feeder material activation bin, a 3.1A dust absorption port, a 3.2 disk stirring motor (for activation and pre-feeding), 3.311 and 3.321 feeding motors;
3.312, 3.322 with weighing function feeding chamber, 3.313, 3.323 powder flowmeter, 3.314, 3.324 Roots blower, 3.315, 3.325 spray pipe;
4, an activation device, 4.1 an activation bin of the activation device and 4A compressed air pipelines;
and 5, a dust removal pipeline.
Detailed Description
Fig. 1 is a schematic diagram of the arrangement of the apparatus according to the first embodiment of the present invention. In the figure, the powder material conveying device for the fly ash spraying chelation treatment in the embodiment sequentially comprises a negative pressure feeding system 1, a discharging system 2 and a quantitative feeding system 3 according to the conveying direction of the powder material, wherein the negative pressure feeding system 1 comprises a ton bag unpacking machine 1.1, a spiral feeding machine 1.2, an air filter 1.3, a Roots vacuum pump 1.4, an air exhaust pipeline 1.4A, a bin top dust remover 1.5, a sealed bin body 1.6, a flapping device 1.7, a star-shaped discharging valve 1.8, a discharging pipeline 1.8A and a negative pressure feeding pipeline 1.9; the top dust remover 1.5 is arranged at the top of the sealed bin body 1.6, the air exhaust pipeline 1.4A is connected between the Roots vacuum pump 1.4 and the top dust remover 1.5, one end of the negative pressure feeding pipeline 1.9 is connected with the feed inlet 1.5A of the top dust remover 1.5, the other end of the negative pressure feeding pipeline is an air inlet, an air filter 1.3 is arranged at the air inlet, powder materials conveyed to the negative pressure feeding pipeline 1.9 by the spiral feeding machine 1.2 are sucked into a negative pressure cavity of the top dust remover 1.5 through the negative pressure feeding pipeline 1.9, and the discharge pipeline 1.8A is arranged at the bottom of the top dust remover 1.5.
The extraction opening of the Roots vacuum pump 1.4 is connected with the extraction opening 1.5B of the bin top dust remover 1.5 through an extraction pipeline 1.4A, so that the inner cavity of the bin top dust remover 1.5 generates negative pressure, a patting device 1.7 is further arranged at the discharge opening of the ton bag unpacking machine 1.1, and the patted powder materials enter the feed inlet of the spiral feed machine 1.2 and then are discharged into a negative pressure feeding pipeline 1.9.
The discharging system 2 comprises a discharging pipe 2.3 and a manual gate valve 2.1 and a star-shaped discharging valve 2.2 in sequence according to the material conveying direction;
the quantitative feeding system 3 comprises a disk feeder material activation bin 3.1, feeding chambers 3.312 and 3.322 with weighing functions, spraying pipelines 3.315 and 3.325, a disk stirring motor 3.2 for driving the disk feeder material activation bin 3.1 to rotate, feeding motors 3.311 and 3.321 for respectively feeding the feeding chambers 3.312 and 3.322 with weighing functions, and roots fans 3.314 and 3.324, wherein the disk feeder material activation bins 3.1, the feeding chambers 3.312 and 3.322 with weighing functions, and the spraying pipelines 3.315 and 3.325 are sequentially arranged in the powder material conveying direction; the gas flows generated by the roots blowers 3.314 and 3.324 respectively spray the powder materials to the material spraying pipelines 3.315 and 3.325.
An activating device 4 is further arranged, the activating device 4 comprises an activating device activating bin 4.1 and a compressed air inlet pipeline 4.1A, the activating device activating bin 4.1 is arranged below the sealing bin body 1.6 and located at the front end of the discharging system 2, and powder materials enter the activating bin through a discharging pipeline at the bottom of the sealing bin body 1.6.
After being unpacked by a ton bag unpacking machine 1, powder materials enter a spiral material conveying machine 1.2 through a hopper after being beaten by a beating device 1.7, and because a Roots vacuum pump 1.4 pumps air to a bin top dust remover 1.5, the bin top dust remover 1.5 forms negative pressure, powder medicaments are sucked into the bin top dust remover 1.5 from a conveying pipeline, a filter bag is arranged in the bin top dust remover 1.5, and in the negative pressure feeding process, the filter bag intercepts fluidized materials at the lower part of the bin top dust remover 1.5); aerating the bin top dust remover 1.5, opening the star-shaped discharge valve 1.8 after eliminating the negative pressure in the bin top dust remover 1.5, feeding the powder material into the sealed bin body 1.6 through the discharge pipeline 1.8A,
when the powder material needs to be unloaded, a manual gate valve 2.1 and a star-shaped discharge valve 2.2 of the unloading system 2 are opened, and the powder material enters a quantitative feeding system 3 from a sealed bin body 1.6 through a discharge pipeline 2.3;
after the powder material enters the quantitative feeding system 3, the powder material firstly passes through the material activation bin 3.1 of the disc feeder, the material is kept in constant activation self-flowing property and is pre-fed under the action of the disc stirring motor 3.2, the powder material respectively and quantitatively falls into the feeding chambers 3.312 and 3.322 with weighing functions, and under the action of airflow of the Roots blowers 3.314 and 3.324, the powder material is respectively blown into the material spraying pipelines 3.315 and 3.325 from the feeding chambers 3.312 and 3.322 and is finally sprayed into the flue gas purification system.
The function of the activation device 4 is: in the discharging process of the powder material at the bottom of the sealed cabin body 1.6, compressed air is sprayed into the activation cabin 4.1 of the activation device through the compressed air inlet pipeline 4.1A, so that the material in the activation cabin 4.1 of the activation device is prevented from bridging, the discharging is facilitated, and the powder material is ensured to smoothly enter the discharging system 2.
Fig. 2 is a schematic diagram of the arrangement of the apparatus according to a second embodiment of the present invention. In this embodiment, different from the first embodiment, powder flow meters 3.313, 3.323 are provided at the ends of the injection pipes 3.315, 3.325, respectively.
Fig. 3 is a schematic view of the arrangement of the apparatus according to the third embodiment of the present invention. In the figure, different from the second embodiment, a dust removal pipeline 5 is further arranged, one end of the dust removal pipeline 5 is connected with a dust removal port 1.5C of the top dust remover 1.5, and the other end of the dust removal pipeline 5 is connected with a dust collection port 3.1A of the material activation bin 3.1 of the disc feeder. Dust removal pipeline 5 one end with the dust removal mouth 1.5C of storehouse top dust remover 1.5 is connected and the other end is connected with the dust absorption mouth 3.1A of disk feeder material activation storehouse 3.1, and under the effect of disk agitator motor 3.2, the disk in disk feeder material activation storehouse 3.1 is rotating always, has the raise dust in the disk feeder material activation storehouse, and dust removal pipeline 5 takes out the raise dust to storehouse top dust remover 1.5 in, prevents that the raise dust from appearing in the workshop.
Claims (3)
1. A powder material conveying device for fly ash spraying chelation treatment is characterized by sequentially comprising a negative pressure feeding system, a discharging system and a quantitative feeding system according to the conveying direction of powder materials,
the negative pressure feeding system comprises a ton bag unpacking machine, a spiral feeding machine, an air filter, a Roots vacuum pump, an air exhaust pipeline, a bin top dust remover, a sealed bin body, a patting device, a star-shaped discharge valve, a discharge pipeline and a negative pressure feeding pipeline; the bin top dust remover is arranged at the top of the sealed bin body, the air exhaust pipeline is connected between the Roots vacuum pump and the bin top dust remover, one end of the negative pressure feeding pipeline is connected with the feed inlet of the bin top dust remover, the other end of the negative pressure feeding pipeline is an air inlet, an air filter is arranged at the air inlet, the air exhaust port of the Roots vacuum pump is connected with the air exhaust port of the bin top dust remover through the air exhaust pipeline so that the inner cavity of the bin top dust remover generates negative pressure, a flapping device is also arranged at the discharge port of the ton bag unpacking machine, the flapped powder material enters the feed inlet of the spiral feed machine and then is discharged into the negative pressure feeding pipeline, the powder material discharged into the negative pressure feeding pipeline is sucked into the negative pressure cavity of the bin top dust remover through the negative pressure feeding pipeline, and the discharge pipeline is arranged at the bottom of the bin top dust remover,
the discharging system comprises a discharging pipe, a manual gate valve and a star-shaped discharging valve in sequence according to the material conveying direction,
the quantitative feeding system comprises a disk feeder material activation bin, a feeding chamber with a weighing function and a material spraying pipeline which are sequentially arranged according to the powder material conveying direction, and further comprises a disk stirring motor for driving the disk feeder material activation bin to rotate, a feeding motor for dosing the feeding chamber with the weighing function and a Roots blower, wherein the powder material is sprayed to the material spraying pipeline by airflow generated by the Roots blower,
the device is characterized by further comprising an activating device, wherein the activating device comprises an activating bin of the activating device and a compressed air inlet pipeline, the activating bin of the activating device is arranged below the sealed bin body and is positioned at the front end of the discharging system, and powder materials enter the activating bin of the activating device through a discharging pipeline at the bottom of the sealed bin body.
2. The powder material conveying device for the injection chelation treatment of the fly ash as claimed in claim 1, wherein a powder flowmeter is further arranged at the tail end of the injection pipeline.
3. The powder material conveying device for the spraying chelation treatment of the fly ash as claimed in claim 1, which is characterized in that a dust removal pipeline is further arranged, one end of the dust removal pipeline is connected with the dust removal port of the top dust remover of the bin, and the other end of the dust removal pipeline is connected with the dust collection port of the material activation bin of the disc feeder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911359831.7A CN111017566A (en) | 2019-12-25 | 2019-12-25 | Powder material conveying device for fly ash spraying chelation treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911359831.7A CN111017566A (en) | 2019-12-25 | 2019-12-25 | Powder material conveying device for fly ash spraying chelation treatment |
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| Publication Number | Publication Date |
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| CN111017566A true CN111017566A (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911359831.7A Pending CN111017566A (en) | 2019-12-25 | 2019-12-25 | Powder material conveying device for fly ash spraying chelation treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113713602A (en) * | 2021-09-09 | 2021-11-30 | 福建龙净脱硫脱硝工程有限公司 | Integrated form flue sprays deacidification device |
-
2019
- 2019-12-25 CN CN201911359831.7A patent/CN111017566A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113713602A (en) * | 2021-09-09 | 2021-11-30 | 福建龙净脱硫脱硝工程有限公司 | Integrated form flue sprays deacidification device |
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Address after: 518046 13th Floor, Times Financial Center, 4001 Shennan Avenue, Futian District, Shenzhen City, Guangdong Province Applicant after: Shenzhen Energy and environmental protection Co.,Ltd. Address before: 518046 13th Floor, Times Financial Center, 4001 Shennan Avenue, Futian District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN ENERGY ENVIRONMENTAL ENGINEERING Co.,Ltd. |