CN216036407U - Accurate active carbon injection system of measurement is stabilized to blanking - Google Patents
Accurate active carbon injection system of measurement is stabilized to blanking Download PDFInfo
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- CN216036407U CN216036407U CN202121441534.XU CN202121441534U CN216036407U CN 216036407 U CN216036407 U CN 216036407U CN 202121441534 U CN202121441534 U CN 202121441534U CN 216036407 U CN216036407 U CN 216036407U
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Abstract
The utility model discloses an active carbon injection system with stable and accurate blanking measurement. The device comprises a feeding structure, a weighing structure and a blowing structure; the feeding structure, the weighing structure and the blowing structure are sequentially connected from top to bottom; the feeding structure comprises a vibration activation cone hopper and a first metal expansion joint; the vibration activation cone hopper is arranged on the cone part of the activated carbon bin; a first metal expansion joint is arranged at an outlet of the vibration activation cone hopper; the weighing structure comprises a vector weighing spiral metering device and a second metal expansion joint; the vector weighing spiral metering device is arranged below the vibration activation cone hopper; a second metal expansion joint is arranged at an outlet of the vector weighing spiral metering device; the blowing structure comprises a Venturi emitter and a nozzle; the Venturi emitter is arranged below the vector weighing spiral metering device; the nozzle is mounted at the outlet of the venturi emitter. The utility model has the advantages of stable blanking and accurate measurement.
Description
Technical Field
The utility model relates to the field of domestic solid waste incineration flue gas purification, in particular to an active carbon injection system with stable and accurate blanking measurement.
Background
The garbage incineration treatment method is to burn the garbage at high temperature, so that combustible components are oxidized and converted into stable gas (smoke), non-combustible components are converted into inorganic substances (ash), and heat energy generated in the incineration treatment process can be used for power generation, so that the aims of harmlessness, reduction and recycling are fulfilled, and the method is one of the most promising methods for treating the urban garbage at present. Along with the increasing acceptance of waste incineration treatment in domestic large and medium-sized cities, the treatment problem of incineration flue gas is also receiving more and more extensive attention, so that the incineration flue gas must be purified to ensure the standard emission.
The method has the advantages that the generation of dioxin generated in the household garbage incineration process is inhibited by controlling the incineration parameters, and the generated dioxin in the flue gas is further reduced. Therefore, in order to ensure that the concentration of harmful substances such as dioxin in the flue gas reaches the required emission index, the flue gas purification system needs to be added with an auxiliary purification measure of activated carbon injection adsorption.
The conventional active carbon injection system controls the addition amount of active carbon by a buffer hopper and a quantitative screw feeder, and the active carbon is injected into a flue at the front inlet of a dust remover by a Venturi ejector. The active carbon is strongly mixed with the flue gas in the pipeline to adsorb certain pollutants, but the pollutants are not saturated, then the active carbon and the flue gas enter a subsequent bag type dust collector together, stay on the filter bag and fully contact with the flue gas slowly passing through the filter bag, and finally the adsorption and purification of pollutants such as dioxin in the flue gas are achieved.
Because the active carbon is porous powdery material, it has certain hydroscopicity, and the measure that the air was blown in to be used for fluidization unloading at the bottom of the storehouse pyramis with roots fan commonly used often takes place the trouble that the unloading is not unblocked in hardening in the area that air humidity is big, because the active carbon material blanking is inhomogeneous, leads to subsequent weighing and metering device action frequently to count inaccurately, and then influences absorption dioxin emission up to standard.
Therefore, it is necessary to develop an activated carbon injection system with stable blanking and accurate metering.
Disclosure of Invention
The utility model aims to provide an active carbon injection system with stable blanking and accurate metering, which has stable blanking and accurate metering; the utility model solves the problems of arching, bridging and the like of materials in the material bin by arranging the vibration activation cone hopper on the cone part of the activated carbon bin, achieves the aim of stable and accurate blanking measurement by matching with the vector weighing spiral metering device, and solves the problems of unstable blanking and inaccurate measurement from a feeding source.
In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides an accurate active carbon injection system of stable measurement of blanking which characterized in that: comprises a feeding structure, a weighing structure and a blowing structure; the feeding structure, the weighing structure and the blowing structure are sequentially connected from top to bottom;
the feeding structure comprises a vibration activation cone hopper and a first metal expansion joint; the vibration activation cone hopper is arranged on the cone part of the activated carbon bin;
a first metal expansion joint is arranged at an outlet of the vibration activation cone hopper;
the weighing structure comprises a vector weighing spiral metering device and a second metal expansion joint; the vector weighing spiral metering device is arranged below the vibration activation cone hopper;
a second metal expansion joint is arranged at an outlet of the vector weighing spiral metering device;
the blowing structure comprises a Venturi emitter and a nozzle; the Venturi emitter is arranged below the vector weighing spiral metering device; the nozzle is mounted at the outlet of the venturi emitter.
In the above technical scheme, the feeding structure further comprises a manual inserting plate door, and the manual inserting plate door is arranged below the first metal expansion joint and above the vector weighing spiral metering device.
In the technical scheme, the second metal expansion joint is positioned between the vector weighing spiral metering device and the Venturi emitter.
The nozzle comprises a nozzle body, a connecting plate and a nozzle flow stabilizer, the nozzle body is of a reducing hollow cone structure, the small end of the nozzle body is connected with the Venturi emitter, the connecting plate is arranged at the mouth of the large end, and the nozzle flow stabilizer is arranged on the connecting plate.
The structures of the vibration activation cone hopper, the metal expansion joint, the vector weighing spiral metering device, the Venturi emitter and the nozzle are all the prior art.
The utility model has the following advantages:
(1) the utility model adopts the vibration activation cone hopper to carry out blanking, integrates arch breaking, feeding and gate into a whole, and can ensure continuous and uniform feeding and timed quantitative variable frequency regulation; the utility model has the advantages of simple structure, convenient installation, reliable operation, light weight, low power consumption, low noise and the like;
(2) the utility model can cancel the conventional activated carbon bin fluidization device (comprising a fluidization fan, an electric heater and other electric devices), thereby achieving the beneficial effects of energy saving and consumption reduction;
(3) the active carbon metering device adopts the vector weighing spiral metering device, the loss of the vector weighing spiral metering device is controlled in the hopper, the metering is accurate, the control precision of +/-0.5 percent can be achieved, the structure of the vector weighing spiral metering device is easy to seal, the leakage of materials cannot occur, the surrounding environment is not polluted, the materials are stainless steel, and the whole device is neat and attractive;
(4) the active carbon material is conveyed by the aid of the Venturi emitter, the active carbon is conveyed to the horizontal flue in front of the bag-type dust collector through 0.1-0.2 Mpa of compressed air, the Venturi emitter is not provided with a mechanical rotating part, and failure rate is low;
(5) the spraying end of the utility model adopts a special activated carbon nozzle to ensure that the activated carbon and the flue gas are uniformly mixed.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic sectional view of the nozzle of the present invention.
Fig. 3 is a side view of a nozzle in the present invention.
In fig. 1, a represents compressed air.
In the figure, 1-vibration activation cone hopper, 2-first metal expansion joint, 3-manual inserting plate door, 4-vector weighing spiral metering device, 5-Venturi emitter, 6-nozzle, 6.1-nozzle body, 6.2-connecting plate, 6.3-nozzle flow stabilizer, 7-second metal expansion joint and 8-activated carbon bin.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the utility model will be clear and readily understood by the description.
With reference to the accompanying drawings: an active carbon injection system with stable and accurate blanking measurement comprises a feeding structure, a weighing structure and an injection structure; the feeding structure, the weighing structure and the blowing structure are sequentially connected from top to bottom;
the feeding structure comprises 1 vibration activation cone hopper 1 and a first metal expansion joint 2; the vibration activation cone hopper 1 is arranged on the cone part of the activated carbon bin 8; the vibration activation cone hopper 1 is feeding equipment, the vibration activation cone hopper 1 is rigidly connected with a stock bin, and the vibration activation cone hopper 1 has the characteristics of simple structure, reliable work, stable operation, low noise, low power consumption, long service life, small maintenance workload and the like; the vibration motor is connected with a power supply, the electric motor starts vibration, the exciting force generated by the vibration activation cone hopper 1 enables the lower part of the feeding hopper to generate strong vibration in the horizontal direction, the vibration decomposes the horizontal exciting force into normal force and tangential force through the cone surface activator, the normal force is transmitted to the deep part of the material in a radial shape, and the tangential force enables the material to be sheared, so that the arching of the material in the bin is eliminated, and the material is discharged from a discharge port like flowing water;
a first metal expansion joint 2 is arranged at an outlet of the vibration activation cone hopper 1, and the first metal expansion joint 2 is used for absorbing expansion amount;
the weighing structure comprises 1 vector weighing spiral metering device 4 and a second metal expansion joint 7; the vector weighing spiral metering device 4 is arranged below the vibration activation cone hopper 1; the utility model controls the discharging screw machine according to the reduction rate of the weight of the material in the vector weighing screw metering device 4 so as to achieve the purpose of quantitative feeding (namely a weightless scale); when the material in the vector weighing spiral metering device 4 reaches the weighing lower limit position, the discharging spiral machine fixes the discharging amount according to the current rotating speed and controls the material in the stock bin to quickly fall into the weighing hopper; when the material is loaded to the upper weighing limit, the material loading is stopped, the material loading is carried out quickly, the material loading time can be shortened, and the weighing accuracy and the control precision are improved (the shorter the time for completing the material loading process is, the more easily the effect of high weighing precision is achieved);
a second metal expansion joint 7 is arranged at the outlet of the vector weighing spiral metering device 4;
the blowing structure comprises 1 Venturi emitter 5 and 1 group of nozzles 6; the Venturi emitter 5 is arranged below the vector weighing spiral metering device 4; the nozzle 6 is arranged at the outlet of the Venturi emitter 5 (namely, at a position close to the center in the flue); 0.1-0.2 MPa of compressed air is blown into a Venturi emitter 5 by a Roots blower, and activated carbon is conveyed into a horizontal flue in front of a dust remover through a nozzle 6.
The working principle of the venturi ejector is that compressed air generates suction force when flowing through the ejector, so that materials above the ejector are sucked away and conveyed in a positive pressure pneumatic conveying system.
Further, the feeding structure further comprises a manual inserting plate door 3, wherein the manual inserting plate door 3 is arranged below the first metal expansion joint 2 and above the vector weighing spiral metering device 4 and used for switching off during equipment maintenance.
Further, a second metal expansion joint 7 is positioned between the vector weighing spiral metering device 4 and the Venturi emitter 5, and the second metal expansion joint 7 is used for absorbing expansion amount.
The nozzle 6 in the utility model is a special nozzle for activated carbon.
The nozzle 6 comprises a nozzle body 6.1, a connecting plate 6.2 and a nozzle flow stabilizer 6.3, the nozzle body 6.1 is in a reducing hollow cone structure, the small end of the nozzle body 6.1 is connected with the Venturi emitter 5, the connecting plate 6.2 is arranged at the mouth part of the large end, and the nozzle flow stabilizer 6.3 is arranged on the connecting plate 6.2; the nozzle flow stabilizer 6.3 is in a triangular frustum shape, and the cone angle is 60 degrees. The nozzle 6 is of a reducing hollow cone structure, the large end of the nozzle body 6.1 is an injection end, the large end of the nozzle body 6.1 injects activated carbon powder into flue gas, the volume space of the large end of the nozzle body 6.1 is enlarged, the injection coverage area is increased, and the problems of unsmooth injection or blockage are prevented; the big end of the nozzle body 6.1 is provided with a nozzle current stabilizer 6.3 which can be uniformly sprayed and distributed, so that the activated carbon powder and the flue gas are fully mixed, the utilization rate of the activated carbon powder is increased, and the using amount is reduced.
The use method of the active carbon injection system with the accurate blanking stability and metering comprises the following steps:
the vibration activation cone hopper 1 is arranged at the bottom of the activated carbon bin, and the blanking amount is adjusted by adopting a variable-frequency electric vibration motor; the outlet of the vibration activation cone hopper 1 is provided with a first metal expansion joint 2, a manual inserting plate door 3 and a blanking chute with a certain length; the active carbon powder material enters the vibration activation cone hopper 1 and the blanking chute through the active carbon bin. The active carbon powdery material enters a vector weighing spiral metering device 4 through a blanking chute for weighing and metering; a second metal expansion joint 7 and a blanking chute are arranged at the outlet of the vector weighing spiral metering device 4, and the metered active carbon is sent into the Venturi emitter 5; 0.1-0.2 MPa of compressed air is blown into the Venturi emitter 5 by a Roots blower, activated carbon is conveyed into a horizontal flue in front of the dust remover, a nozzle 6 is arranged at the tail end of a blowing pipe of the Venturi emitter 5, and the activated carbon is uniformly mixed into flue gas.
Other parts not described belong to the prior art.
Claims (4)
1. The utility model provides an accurate active carbon injection system of stable measurement of blanking which characterized in that: comprises a feeding structure, a weighing structure and a blowing structure; the feeding structure, the weighing structure and the blowing structure are sequentially connected from top to bottom;
the feeding structure comprises a vibration activation cone hopper (1) and a first metal expansion joint (2); the vibration activation cone hopper (1) is arranged on the cone part of the activated carbon bin (8);
a first metal expansion joint (2) is arranged at an outlet of the vibration activation cone hopper (1);
the weighing structure comprises a vector weighing spiral metering device (4) and a second metal expansion joint (7); the vector weighing spiral metering device (4) is arranged below the vibration activation cone hopper (1);
a second metal expansion joint (7) is arranged at an outlet of the vector weighing spiral metering device (4);
the blowing structure comprises a Venturi emitter (5) and a nozzle (6); the Venturi emitter (5) is arranged below the vector weighing spiral metering device (4); the nozzle (6) is arranged at the outlet of the Venturi emitter (5).
2. The blanking stable metering accurate activated carbon injection system according to claim 1, characterized in that: the feeding structure further comprises a manual inserting plate door (3), and the manual inserting plate door (3) is arranged below the first metal expansion joint (2) and located above the vector weighing spiral metering device (4).
3. The blanking stable metering accurate activated carbon injection system according to claim 1 or 2, characterized in that: the second metal expansion joint (7) is positioned between the vector weighing spiral metering device (4) and the Venturi emitter (5).
4. The blanking stable metering accurate activated carbon injection system according to claim 3, characterized in that: the nozzle (6) comprises a nozzle body (6.1), a connecting plate (6.2) and a nozzle flow stabilizer (6.3), the nozzle body (6.1) is of a reducing hollow cone structure, the small end of the nozzle body (6.1) is connected with the Venturi emitter (5), the mouth of the large end is provided with the connecting plate (6.2), and the nozzle flow stabilizer (6.3) is installed on the connecting plate (6.2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121441534.XU CN216036407U (en) | 2021-06-28 | 2021-06-28 | Accurate active carbon injection system of measurement is stabilized to blanking |
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| CN202121441534.XU CN216036407U (en) | 2021-06-28 | 2021-06-28 | Accurate active carbon injection system of measurement is stabilized to blanking |
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| CN216036407U true CN216036407U (en) | 2022-03-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114653200A (en) * | 2022-03-23 | 2022-06-24 | 上海固雅环境科技有限公司 | Dry denitration system for incinerator flue gas |
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2021
- 2021-06-28 CN CN202121441534.XU patent/CN216036407U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114653200A (en) * | 2022-03-23 | 2022-06-24 | 上海固雅环境科技有限公司 | Dry denitration system for incinerator flue gas |
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Inventor after: Zhang Jin Inventor after: Lu Dehu Inventor after: Wu Juexiong Inventor after: Ding Hao Inventor before: Zhang Jin Inventor before: Xu Jianbing Inventor before: He Xuekao Inventor before: Lu Dehu Inventor before: Wu Juexiong Inventor before: Ding Hao |