CN217613890U - Activated carbon injection system of household garbage incineration plant - Google Patents
Activated carbon injection system of household garbage incineration plant Download PDFInfo
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- CN217613890U CN217613890U CN202221061469.2U CN202221061469U CN217613890U CN 217613890 U CN217613890 U CN 217613890U CN 202221061469 U CN202221061469 U CN 202221061469U CN 217613890 U CN217613890 U CN 217613890U
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Abstract
The utility model discloses an activated carbon injection system of a household garbage incineration plant, which particularly comprises an activated carbon blanking part, an air supply part, an activated carbon conveying pipe and a control system which are arranged in a matching way, wherein the activated carbon blanking part is used for storing, metering and blanking activated carbon powder; the air supply part is used for blowing the activated carbon powder after blanking into a flue through an activated carbon conveying pipe, and the control system is used for adjusting the adding amount of the activated carbon blanking part and the air supply speed of the air supply part; the active carbon blanking part comprises an active carbon storage bin, an active carbon weighing hopper weighing machine and a Venturi ejector which are arranged in a matched mode, a buffer hopper is arranged on the active carbon weighing hopper weighing machine, a variable-frequency spiral discharging machine is arranged at the bottom of the buffer hopper, and the control system adjusts the adding amount of the active carbon blanking part by adjusting the discharging speed of the variable-frequency spiral discharging machine; the discharge end of the activated carbon weighing hopper weighing machine is connected with the Venturi ejector through an air locking machine and a discharging pipe.
Description
Technical Field
The utility model relates to an environmental protection technical field, concretely relates to domestic waste burns active carbon injection system of factory.
Background
Pollutants in the incineration flue gas of the household garbage can be divided into four categories, namely particulate matters (dust), acid gases (HCl, HF, SO2, NOx and the like), heavy metals (Hg, pb, cr and the like) and organic hypertoxic pollutants (dioxin, furan and the like). In order to prevent secondary pollution to the environment in the waste incineration treatment process, strict measures must be taken, and the emission of waste incineration smoke is controlled by using a smoke purification system. The main process for removing heavy metals and organic highly toxic pollutants usually adopts activated carbon as an adsorbent, activated carbon powder is sprayed into a flue to be adsorbed, and the activated carbon powder is captured by a bag-type dust collector at the rear end, discharged into an ash hopper of a dust collector through compressed air blowback and conveyed to a fly ash storage tank through an ash conveying system. In order to obtain good effect of removing heavy metals and organic highly toxic pollutants, a flue gas purification system of a domestic waste incineration plant needs to be provided with a perfect and reliable active carbon injection system to continuously provide raw materials for the flue gas purification system, and equipment combination meeting process requirements is provided to realize the functions of blanking, conveying, metering, parameter regulation and control of active carbon powder. However, the existing flue gas purification system of a domestic garbage incineration plant is usually single in structure and does not have functions of perfect metering, parameter adjustment, control and the like, so that the removal and storage rate of heavy metals and organic highly toxic pollutants is not ideal enough.
Disclosure of Invention
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a simple structure, maintain convenient and long service life's domestic waste incineration plant's active carbon injection system.
The utility model aims at solving the problems that the activated carbon injection system of the household garbage incineration plant comprises an activated carbon blanking part, an air supply part, an activated carbon conveying pipe and a control system which are arranged in a matching way, wherein the activated carbon blanking part is used for storing, metering and blanking activated carbon powder; the air supply part is used for blowing the blanked activated carbon powder into a flue through an activated carbon conveying pipe, and the control system is used for adjusting the adding amount of the activated carbon blanking part and the air supply speed of the air supply part; the active carbon blanking part comprises an active carbon storage bin, an active carbon weighing hopper weighing machine and a Venturi ejector which are arranged in a matched mode, a buffer hopper is arranged on the active carbon weighing hopper weighing machine, a variable-frequency spiral discharging machine is arranged at the bottom of the buffer hopper, and the control system adjusts the adding amount of the active carbon blanking part by adjusting the discharging speed of the variable-frequency spiral discharging machine; the discharge end of the activated carbon weighing hopper weighing machine is connected with the Venturi ejector through an air locking machine and a discharging pipe.
Furthermore, the air supply part comprises a Roots blower, an expansion joint, a check valve, a manual valve, a pressure transmitter and a pressure gauge which are sequentially connected by pipelines along the wind power blowing direction of the Roots blower, and the far end of the air supply part is connected with the Venturi ejector by a pipeline; the check valve is used for preventing the active carbon powder from flowing back, and the pressure transmitter is used for feeding back the air pressure in the air supply part in real time.
Further, the active carbon conveyer pipe includes transparent hose and wear-resisting pipeline, wear-resisting pipeline adopts the wear-resisting ceramic lining return bend of major radius in elbow department, and passes through flange joint between wear-resisting pipeline and the wear-resisting ceramic lining return bend of major radius, transparent hose arranges the outlet side and the flue inlet side at venturi sprayer respectively.
Furthermore, the bottom of the activated carbon storage bin is sequentially provided with a gate valve and a rotary discharge valve, and the outlet end of the rotary discharge valve is connected with the inlet of the activated carbon weighing hopper weighing machine through a reducing flange.
Furthermore, the outlet end of the Venturi ejector is connected with a wear-resistant ceramic lining pipe.
The utility model has the beneficial technical effects that: the utility model discloses a domestic waste burns activated carbon powder unloading of factory, transport and measurement function, have that the unloading is smooth not return gas, carry stable resistance little, the material is thrown and is thrown advantages such as real time monitoring, the wear-resisting ceramic tube of venturi sprayer export inside lining, the wear-resisting ceramic inside lining return bend of major radius is changed conveniently.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the venturi ejector of FIG. 1.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "lateral", "vertical", and the like are the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1-2, the activated carbon injection system of a household garbage incineration plant of the present invention comprises an activated carbon feeding part 1, an air supply part 2, an activated carbon delivery pipe 3 and a control system, wherein the activated carbon feeding part 1 is used for storing, metering and feeding activated carbon powder; the air supply part 2 is used for blowing the blanked activated carbon powder into a flue 4 through an activated carbon delivery pipe 3, and the control system is used for adjusting the adding amount of the activated carbon blanking part 1 and the air supply speed of the air supply part 2. Under the action of the control system, the activated carbon discharging part 1 can be interlocked with parameters of the garbage charging amount and the smoke generation amount to adjust the activated carbon injection amount in real time, so that the smoke is effectively purified, and the activated carbon resource is efficiently utilized.
Referring to fig. 1, active carbon unloading portion 1 is including supporting active carbon warehouse 11, active carbon weighing hopper weighing machine 12 and the venturi sprayer 13 that sets up, be provided with the buffer bin on the active carbon weighing hopper weighing machine 12, the bottom of this buffer bin is provided with frequency conversion spiral discharge machine, thereby control system adjusts the input of active carbon unloading portion 1 through the ejection of compact speed of adjusting frequency conversion spiral discharge machine to can adjust the input of active carbon at any time as required. The bottom 11 of the activated carbon storage bin is connected with a gate valve 14, the other end of the gate valve 14 is connected with an inlet of a rotary discharge valve 15, and an outlet of the rotary discharge valve 15 is connected with an inlet of an activated carbon weighing hopper weighing machine 12 through a reducing flange and a flexible connection. The outlet of the activated carbon weighing hopper weighing machine 12 is connected with an air locking machine 16 through flexible connection, the air locking machine 16 is connected with a blanking pipe 17, and the blanking pipe 17 is connected with a Venturi ejector 13.
Referring to fig. 1-2, the air supply part 2 comprises a roots blower 21, an expansion joint 22, a check valve 23, a manual valve 24, a pressure transmitter 25 and a pressure gauge 26 which are sequentially connected by pipes along the blowing direction of wind power of the roots blower 21, and the far end of the air supply part 2 is connected with the venturi ejector 13 by a pipe; the check valve 23 can prevent the activated carbon powder from flowing back to the roots blower 21 to cause a failure when the machine is stopped or the air supply is abnormal. The pressure transmitter 25 can feed back the conveying wind pressure in real time, and the pressure is small, which indicates that the activated carbon powder is not smoothly discharged and the conveying pipeline is empty-blown; the pressure is larger, which shows that the conveying resistance is large and the pipeline tends to be blocked. The active carbon conveyer pipe 3 includes transparent hose 31 and wear-resisting pipeline 32, wear-resisting pipeline 32 adopts the wear-resisting ceramic inside lining return bend 33 of major radius in elbow department, and passes through flange joint between wear-resisting pipeline 32 and the wear-resisting ceramic inside lining return bend 33 of major radius, and the wear-resisting ceramic inside lining return bend 33 of major radius has the resistance that reduces, and is wear-resisting, changes advantages such as convenient. The transparent hose 31 is respectively arranged on the outlet side of the venturi ejector 13 and the inlet side of the flue 4, the conveying condition of the activated carbon powder can be conveniently observed on site through the transparent hose 31, and the conveying abnormal condition can be more accurately judged by combining pressure change.
In addition, referring to fig. 2, the outlet end of the venturi ejector 13 is further connected with a wear-resistant ceramic lining pipe 5, and in the process that activated carbon powder enters the venturi ejector 13 from the blanking pipe 17 and then enters the activated carbon delivery pipe 3, the activated carbon powder continuously washes the pipeline due to sudden increase of air pressure, so that the pipeline hourglass condition often occurs, and the venturi ejector 13 needs to be frequently repaired or replaced. The wear-resistant ceramic pipe lining is added at the outlet end, so that the service life of the venturi ejector 13 is greatly prolonged, when the ceramic pipe is worn seriously, only the venturi ejector needs to be detached to replace the wear-resistant ceramic lining pipe, the replacement is convenient, the whole manufacturing cost is cheaper, and the purification cost is reduced.
The working process comprises the following steps: when the machine is started, the manual valve 24 is firstly opened, the roots blower 21 is started, and the conveying pipeline is subjected to air blowing. Then opening a gate valve 14, opening a rotary discharge valve 15, enabling the activated carbon powder to enter an activated carbon weighing hopper weighing machine 12 through flexible connection under the action of gravity, enabling the activated carbon powder to enter a spiral discharge machine of the activated carbon weighing hopper weighing machine 12 after being temporarily stored in a buffer hopper of the activated carbon weighing hopper weighing machine 12 for a short time, enabling the activated carbon powder to sequentially pass through an air locking machine 16 and a discharge pipe 17 under the action of gravity, entering a Venturi ejector 13, and finally sending the activated carbon powder into an outlet flue 4 of the semi-dry reaction tower through a transparent hose 31, a large-radius wear-resistant ceramic lining bent pipe 33 and a wear-resistant conveying pipeline 21 under the action of wind pressure. When the machine is stopped, the gate valve 14 is firstly closed, the rotary discharge valve 15 is closed, the transparent hose 31 is observed, the spiral discharge machine of the activated carbon weighing hopper weighing machine 12 is closed in a delayed mode after activated carbon powder is blown out, and the air locking machine is started.
The utility model discloses a domestic waste burns activated carbon powder unloading of factory, transport and measurement function, have that the unloading is smooth not return gas, carry stable resistance little, the material is thrown and is thrown advantages such as real time monitoring, the wear-resisting ceramic tube of venturi sprayer export inside lining, the wear-resisting ceramic inside lining return bend of major radius is changed conveniently.
The specific embodiments described herein are merely illustrative of the principles of the present invention and its efficacy, and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical idea of the present invention shall be covered by the claims of the present invention.
Claims (5)
1. The utility model provides an active carbon injection system of domestic waste incineration plant which characterized in that: the device comprises an activated carbon blanking part, an air supply part, an activated carbon conveying pipe and a control system which are arranged in a matched manner, wherein the activated carbon blanking part is used for storing, metering and blanking activated carbon powder; the air supply part is used for blowing the activated carbon powder after blanking into a flue through an activated carbon conveying pipe, and the control system is used for adjusting the adding amount of the activated carbon blanking part and the air supply speed of the air supply part; the active carbon blanking part comprises an active carbon storage bin, an active carbon weighing hopper weighing machine and a Venturi ejector which are arranged in a matched mode, a buffer hopper is arranged on the active carbon weighing hopper weighing machine, a variable-frequency spiral discharging machine is arranged at the bottom of the buffer hopper, and the control system adjusts the adding amount of the active carbon blanking part by adjusting the discharging speed of the variable-frequency spiral discharging machine; the discharge end of the activated carbon weighing hopper weighing machine is connected with the Venturi ejector through an air locking machine and a discharging pipe.
2. The activated carbon injection system of a municipal solid waste incineration plant according to claim 1, characterized in that: the air supply part comprises a Roots blower, an expansion joint, a check valve, a manual valve, a pressure transmitter and a pressure gauge which are sequentially connected by pipelines along the wind blowing direction of the Roots blower, and the far end of the air supply part is connected with the Venturi ejector by a pipeline; the check valve is used for preventing the active carbon powder from flowing back, and the pressure transmitter is used for feeding back the air pressure in the air supply part in real time.
3. The activated carbon injection system of a municipal solid waste incineration plant according to claim 1 or 2, characterized in that: the active carbon conveyer pipe includes transparent hose and wear-resisting pipeline, wear-resisting pipeline adopts the wear-resisting ceramic lining return bend of major radius in elbow department, and passes through flange joint between wear-resisting pipeline and the wear-resisting ceramic lining return bend of major radius, transparent hose arranges respectively in the outlet side and the flue inlet side of venturi sprayer.
4. The activated carbon injection system of a municipal solid waste incineration plant according to claim 3, characterized in that: the bottom of the activated carbon storage bin is sequentially provided with a gate valve and a rotary discharge valve, and the outlet end of the rotary discharge valve is connected with the inlet of the activated carbon weighing hopper weighing machine through a reducing flange.
5. The activated carbon injection system of a municipal solid waste incineration plant according to claim 3, characterized in that: and the outlet end of the Venturi ejector is connected with a wear-resistant ceramic lining pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221061469.2U CN217613890U (en) | 2022-05-06 | 2022-05-06 | Activated carbon injection system of household garbage incineration plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221061469.2U CN217613890U (en) | 2022-05-06 | 2022-05-06 | Activated carbon injection system of household garbage incineration plant |
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| Publication Number | Publication Date |
|---|---|
| CN217613890U true CN217613890U (en) | 2022-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221061469.2U Active CN217613890U (en) | 2022-05-06 | 2022-05-06 | Activated carbon injection system of household garbage incineration plant |
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| CN (1) | CN217613890U (en) |
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2022
- 2022-05-06 CN CN202221061469.2U patent/CN217613890U/en active Active
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