CN213930938U - Baking soda dry powder pneumatic conveying and feeding device - Google Patents
Baking soda dry powder pneumatic conveying and feeding device Download PDFInfo
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- CN213930938U CN213930938U CN202023035205.3U CN202023035205U CN213930938U CN 213930938 U CN213930938 U CN 213930938U CN 202023035205 U CN202023035205 U CN 202023035205U CN 213930938 U CN213930938 U CN 213930938U
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Abstract
A baking soda dry powder pneumatic conveying and adding device comprises a frame, a motor, a speed reducer and a storage bin; the device comprises a bin, a motor, a speed reducer, a motor, a screw feeder, a discharge port of the screw feeder, a compressed air blowing pipe and a compressed air conveying pipe, wherein the bin is arranged on a frame, the screw feeder is arranged at the bottom of the bin and is connected with the motor through the speed reducer, the motor drives the screw feeder to work, the discharge port of the screw feeder is provided with the injection conveyor capable of spraying and conveying baking soda dry powder, the injection conveyor is communicated with the compressed air blowing pipe, and the compressed air is used as conveying power to spray and convey the baking soda dry powder. The motor is controlled by the electric cabinet, the electric cabinet is arranged in a safe area, and the motor is remotely controlled to drive after being connected through a cable plug. The baking soda dry powder pneumatic conveying and feeding device smoothly sprays baking soda dry powder into a flue of a household garbage incinerator to perform neutralization reaction with flue gas, so that the content of acid gas in tail gas flue gas purification is reduced.
Description
Technical Field
The utility model relates to a waste incineration equipment's technical field specifically is a throw device with sodium bicarbonate dry powder to domestic waste incinerator flue.
Background
Researches show that pollutants contained in waste incineration flue gas mainly comprise acidic gases such as HCL, SOx, NOx and the like and smoke dust. Wherein, NOx is mainly composed of NO, which accounts for more than 95 percent, but compared with other acid gases, NO has the characteristic of being insoluble in water and not directly reacting with other alkaline substances at normal temperature, and the NOx in the flue gas purification needs to be removed by adopting a special process technology. Therefore, the deacidification process is mainly used for removing acid gases such as HCL, SOx and the like in the flue gas. HCL in the flue gas mainly comes from the incineration of chlorine-containing substances such as polyvinyl chloride, inorganic chloride and the like; and SOx mainly originates from organic sulfur content in the garbage, and part of SOx also originates from inorganic sulfur content. The existing domestic garbage flue gas deacidification technology can be divided into 3 types of dry deacidification, semi-dry deacidification and wet deacidification according to the adding state of treatment raw materials and the state of byproducts.
The wet deacidification process mainly adopts a washing tower form, and the flue gas enters the washing tower and passes through an alkaline solution and is fully contacted, so that a full deacidification effect is obtained. The alkaline solutions are typically lime slurry solutions and sodium hydroxide solutions. To avoid the acid corrosion of the gas, the purified gas is generally heated to over 100 ℃ and then discharged into the atmosphere through a chimney by a draught fan. The deacidification efficiency of the wet deacidification process can reach 99 percent. But has the disadvantages of high power consumption, high water consumption, high operation and maintenance cost, additional treatment of the generated wastewater and the like.
The dry deacidification process sprays lime powder into an outlet pipeline of a reaction tower through a spraying and conveying system, the lime powder is in contact reaction with acid gas near a filter bag of a dust remover to generate a solid compound, and the solid compound and fly ash are captured by the dust remover. The dry deacidification has the following advantages: 1. the device is simple, the maintenance cost is low, and the initial investment is low; 2. no wastewater is generated, and a matched wastewater treatment system is not needed; 3. the water vapor content in the clean smoke is not saturated, the chimney does not emit white smoke, and the visual effect is good. But simultaneously has the defects of relatively low deacidification efficiency, difficult realization of stricter emission requirements, high consumption of reaction medicaments and high operating cost.
The semidry deacidification process comprises the steps of spraying lime slurry with a certain concentration into a reaction tower to react with acid gas, and controlling the reaction temperature through the water spraying amount. The water is evaporated in the absorption and neutralization reaction processes, the larger-particle fly ash is settled to the bottom of the reaction tower and discharged, and the fine-particle fly ash is subjected to stabilization treatment after being captured by a dust remover. The semidry method is between the wet method and the dry method, and has the following characteristics: 1. the device is more complicated than a dry method, but is simpler than a wet method, and the investment is intermediate; 2. the method is consistent with the dry method, no wastewater is generated, and a matched wastewater treatment system is not needed, but fly ash is generated and needs to be matched with the fly ash treatment system; 3. the water vapor content in the clean flue gas is not saturated, and the chimney does not emit white smoke; 4. the deacidification efficiency is higher than that of a dry method, and can generally meet the stricter emission requirement; 5, the consumption of reaction agents is lower than that of a dry method, and the operating cost is higher than that of the dry method.
In addition to the above three basic flue gas deacidification processes, a combined process of "semi-dry process + dry process" and "dry process + wet process" for flue gas deacidification is continuously developed and put into practice in recent years. Among them, the "semi-dry method + dry method" is most commonly used in the waste incineration power generation industry.
The process takes a semi-dry method as a main part and takes a dry method as an auxiliary part, and the deacidification effect of the process can basically reach the national requirement and even meet the standard of European Union 2000. In China, in view of the advantage of low operation cost, the dry deacidification process is still used in a waste incineration power plant. At present, lime powder is mostly used as a reaction agent in the dry method, but the deacidification effect of the dry method is often unstable. Therefore, the search for a reactant capable of replacing lime powder and improving deacidification efficiency becomes the direction of research of many manufacturers.
Researches show that the flue gas generated by burning the household garbage generates a large amount of acid gas, the optimal reaction temperature of the baking soda dry powder is 300-350 ℃, and the baking soda dry powder is sprayed in a reasonable temperature occasion, so that the content of the acid gas in the tail gas flue gas purification can be reduced. Therefore, a device for adding baking soda dry powder is needed.
Disclosure of Invention
The utility model aims at providing a baking soda dry powder air conveying throws feeder apparatus spouts the baking soda dry powder into domestic waste incinerator flue, takes place neutralization reaction with the flue gas, reduces acid gas's among the tail gas cleaning content.
The utility model discloses an adopt following technical scheme to realize:
a baking soda dry powder pneumatic conveying and adding device comprises a frame, a motor, a speed reducer and a storage bin; the device comprises a bin, a motor, a speed reducer, a motor, a screw feeder, a discharge port of the screw feeder, a compressed air blowing pipe and a compressed air conveying pipe, wherein the bin is arranged on a frame, the screw feeder is arranged at the bottom of the bin and is connected with the motor through the speed reducer, the motor drives the screw feeder to work, the discharge port of the screw feeder is provided with the injection conveyor capable of spraying and conveying baking soda dry powder, the injection conveyor is communicated with the compressed air blowing pipe, and the compressed air is used as conveying power to spray and convey the baking soda dry powder. The motor is controlled by the electric cabinet, the electric cabinet is arranged in a safe area, and the motor is remotely controlled to drive after being connected through a cable plug.
Preferably: the storage bin is provided with a sealing cover which is closed after the storage bin is loaded, so that the baking soda dry powder is prevented from being damped when encountering air.
Preferably: the wall of the bin is provided with a peep hole, so that the storage material level condition of the bin can be observed.
Preferably: the feed bin in install and prevent stifled trip shaft, prevent that the one end of stifled trip shaft stretches out the feed bin outside and retarder connection, the feed bin is arranged in to the other end. The anti-blocking turnover shaft rotates above the inlet of the double-helix feeder, so that the baking soda dry powder is prevented from bridging and being overhead, and the operation is more stable.
Preferably: the spray conveyor adopts a Venturi type spray conveyor, the upper end of the spray conveyor is used for feeding materials, one side of the spray conveyor is communicated with the compressed air blowing pipe, the other side of the spray conveyor is used for discharging materials, the feed port of the spray conveyor is kept in a negative pressure state, and the baking soda powder is prevented from leaking outwards.
Preferably: the spiral feeder adopts a double-spiral feeder.
Preferably: the speed reducer adopts a worm gear speed reducer. The worm gear speed reducer drives the double-screw feeder and the anti-blocking turnover shaft respectively, the driving force is larger, and the running is more stable.
The baking soda dry powder pneumatic conveying and feeding device has the advantages that:
1. the baking soda dry powder pneumatic conveying and adding device is simple in structure and low in manufacturing cost, the baking soda dry powder is conveyed by the aid of the spiral feeder and the jet conveyor, the jet conveyor is a Venturi type jet conveyor, the upper end of the jet conveyor is used for feeding, one side of the jet conveyor is communicated with the compressed air blowing pipe, the other side of the jet conveyor is used for discharging, the feeding hole of the jet conveyor is kept in a negative pressure state, the baking soda powder is prevented from leaking outwards, the baking soda dry powder can be smoothly sprayed into a flue of a household garbage incinerator and is subjected to neutralization reaction with flue gas, and the content of acid gas in tail gas flue gas purification is reduced.
2. An anti-blocking turnover shaft is arranged above the inlet of the spiral feeder, so that the baking soda dry powder is prevented from bridging and being overhead, and the operation is more stable.
3. The storage bin is provided with a sealing cover which is closed after the storage bin is charged, so that the baking soda powder is prevented from being affected with damp when meeting air.
4. The wall of the adopted storage bin is provided with the peep sight, so that the storage level condition of the storage bin can be observed conveniently.
Drawings
FIG. 1 is a schematic structural diagram of the baking soda dry powder pneumatic conveying and feeding device;
FIG. 2 is a schematic right-side view of FIG. 1;
the names of the sequence numbers in the figure are:
1. the device comprises a rack, 2, a motor, 3, a speed reducer, 4, a storage bin, 5, a sight glass, 6, a sealing cover, 7, an anti-blocking turnover shaft, 8, a spiral feeder, 9, a jet conveyor, 10 and a compressed air blowing pipe.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the following embodiments, which are only a part of the present invention, but not all embodiments.
Example 1
A baking soda dry powder pneumatic conveying and adding device comprises a frame 1, a motor 2, a speed reducer 3 and a storage bin 4; the baking soda machine is characterized in that the bin 4 is installed on the frame 1, the spiral feeder 8 is installed at the bottom of the bin 4, the spiral feeder 8 is connected with the motor 2 through the speed reducer 3, the motor 2 drives the spiral feeder 8 to work, the discharge hole of the spiral feeder 8 is provided with the injection conveyor 9 capable of injecting and conveying baking soda dry powder, the injection conveyor 9 is communicated with the compressed air blowing pipe 10, and the compressed air is used as conveying power to inject and convey the baking soda dry powder. The motor 2 is controlled by an electric cabinet, the electric cabinet is arranged in a safe area, and the motor is remotely controlled to drive after being connected through a cable plug.
The storage bin 4 is provided with a sealing cover 6 which is closed after the storage bin is loaded, so that the baking soda powder is prevented from being affected with damp when meeting air.
The wall of the bin 4 is provided with a peep hole 5, so that the storage level condition of the bin can be observed.
Example 2
A baking soda dry powder pneumatic conveying and adding device comprises a frame 1, a motor 2, a speed reducer 3 and a storage bin 4; the feed bin 4 is arranged on the machine frame 1, the bottom of the feed bin 4 is provided with a spiral feeder 8, and the spiral feeder 8 adopts a double-spiral feeder. The spiral feeder 8 is connected with the motor 2 through the speed reducer 3, the motor 2 drives the spiral feeder 8 to work, the discharge port of the spiral feeder 8 is provided with a jet conveyor 9 capable of jet conveying sodium bicarbonate dry powder, the jet conveyor 9 adopts a Venturi type jet conveyor, the upper end of the jet conveyor is used for feeding, one side of the jet conveyor is communicated with a compressed air blowing pipe 10, compressed air is used as conveying power to jet and convey the sodium bicarbonate dry powder, the other side of the jet conveyor is used for discharging, the feed port of the jet conveyor is kept in a negative pressure state, and the sodium bicarbonate powder is prevented from leaking outwards. The motor 2 is controlled by an electric cabinet, the electric cabinet is arranged in a safe area, and the motor is remotely controlled to drive after being connected through a cable plug.
The storage bin 4 is provided with a sealing cover 6 which is closed after the storage bin is loaded, so that the baking soda powder is prevented from being affected with damp when meeting air. The wall of the bin 4 is provided with a peep hole 5, so that the storage level condition of the bin can be observed.
The feed bin 4 in install and prevent stifled trip shaft 7, prevent that the one end of stifled trip shaft 7 stretches out feed bin 4 and outer being connected with reduction gear 3, the other end is arranged in feed bin 4. The anti-blocking turnover shaft 7 rotates above the inlet of the double-helix feeder 8, so that the baking soda dry powder is prevented from bridging and being overhead, and the operation is more stable. The speed reducer 3 adopts a worm gear speed reducer. The worm gear speed reducer drives the double-screw feeder and the anti-blocking turnover shaft respectively, the driving force is larger, and the running is more stable.
The above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art should be able to make changes, modifications, additions or substitutions within the scope of the present invention.
Claims (7)
1. The utility model provides a baking soda dry powder air conveying throws feeder apparatus which characterized in that: comprises a frame (1), a motor (2), a speed reducer (3) and a storage bin (4); bin (4) install in frame (1), screw feed ware (8) are installed to the bottom of feed bin (4), screw feed ware (8) are connected with motor (2) through reduction gear (3), motor (2) drive screw feed ware (8) work, the discharge gate of screw feed ware (8) is installed and is expected spray conveyor (9) that carry with baking soda dry powder injection, spray conveyor (9) intercommunication has compressed air gas blow pipe (10), utilize compressed air to carry baking soda dry powder as power jet transport.
2. The baking soda dry powder pneumatic conveying and adding device as claimed in claim 1, characterized in that: and a sealing cover (6) is arranged on the storage bin (4).
3. The baking soda dry powder pneumatic conveying and adding device as claimed in claim 1, characterized in that: the wall of the storage bin (4) is provided with a peep hole (5).
4. The baking soda dry powder pneumatic conveying and adding device as claimed in claim 1, characterized in that: the anti-blocking device is characterized in that an anti-blocking turnover shaft (7) is installed in the storage bin (4), one end of the anti-blocking turnover shaft (7) extends out of the storage bin (4) and is connected with the speed reducer (3), and the other end of the anti-blocking turnover shaft is arranged in the storage bin (4).
5. The baking soda dry powder pneumatic conveying and adding device as claimed in claim 1, characterized in that: the jet conveyor (9) adopts a Venturi type jet conveyor, the upper end of the jet conveyor is used for feeding materials, one side of the jet conveyor is communicated with a compressed air blowing pipe (10), and the other side of the jet conveyor is used for discharging materials.
6. The baking soda dry powder pneumatic conveying and adding device as claimed in claim 1, characterized in that: the spiral feeder (8) adopts a double-spiral feeder.
7. The baking soda dry powder pneumatic conveying and adding device as claimed in claim 1, characterized in that: the speed reducer (3) adopts a worm gear speed reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023035205.3U CN213930938U (en) | 2020-12-16 | 2020-12-16 | Baking soda dry powder pneumatic conveying and feeding device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023035205.3U CN213930938U (en) | 2020-12-16 | 2020-12-16 | Baking soda dry powder pneumatic conveying and feeding device |
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| CN213930938U true CN213930938U (en) | 2021-08-10 |
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| CN202023035205.3U Active CN213930938U (en) | 2020-12-16 | 2020-12-16 | Baking soda dry powder pneumatic conveying and feeding device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234208A (en) * | 2021-11-15 | 2022-03-25 | 中核建中核燃料元件有限公司 | Lithium fine slag fluidized combustion furnace |
| CN114471137A (en) * | 2022-03-14 | 2022-05-13 | 尊峰环保科技有限公司 | A medicament powder injection system for handling domestic waste burns flue gas |
-
2020
- 2020-12-16 CN CN202023035205.3U patent/CN213930938U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234208A (en) * | 2021-11-15 | 2022-03-25 | 中核建中核燃料元件有限公司 | Lithium fine slag fluidized combustion furnace |
| CN114471137A (en) * | 2022-03-14 | 2022-05-13 | 尊峰环保科技有限公司 | A medicament powder injection system for handling domestic waste burns flue gas |
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