CN210907369U - Fly ash solidification equipment for waste incineration power plant - Google Patents
Fly ash solidification equipment for waste incineration power plant Download PDFInfo
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- CN210907369U CN210907369U CN201921663454.1U CN201921663454U CN210907369U CN 210907369 U CN210907369 U CN 210907369U CN 201921663454 U CN201921663454 U CN 201921663454U CN 210907369 U CN210907369 U CN 210907369U
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Abstract
The utility model discloses a fly ash solidification device of a waste incineration power plant, which comprises an ash storehouse, a water tank and a chelating agent storage tank, wherein an ash scale for weighing ash from the ash storehouse is arranged below the ash storehouse, an outlet of the ash scale is communicated with a material mixer through a discharge valve, the water tank is connected with a water pipeline provided with a water pump, and a water scale for weighing water is connected behind the water pipeline; the chelating agent storage tank is connected with an infusion pipeline of an infusion pump, and a chelating agent scale for weighing the chelating agent is connected behind the infusion pipeline; a mixed liquid stirrer for stirring and mixing the water and the chelating agent is arranged behind the water scale and the chelating agent scale, and a mixed liquid outlet of the mixed liquid stirrer is communicated with the material stirrer; valves for controlling the delivery of the water and the chelating agent are respectively arranged on the water delivery pipeline and the liquid delivery pipeline. The utility model has low production cost and convenient use.
Description
Technical Field
The utility model relates to a fly ash solidification equipment of waste incineration power plant.
Background
The waste incineration power generation is the most main environment-friendly treatment method for treating the waste at home and abroad at present. However, fly ash generated after incineration contains dioxin, heavy metals and the like, which belong to hazardous waste, and the fly ash needs to be stably solidified, bagged and then buried. The current treatment method is that the chelating agent, water and cement (the cement is cancelled in some areas, and the following description is not included) are added into the fly ash and stirred, so that the chelating agent is uniformly distributed in the fly ash, and then the fly ash is bagged and buried. This process is known in the industry as fly ash solidification. The disposal of fly ash is a major cost in the operation of a waste power plant, while the chelating agent is a major cost in the disposal of fly ash.
The fly ash solidification equipment in the prior art mainly comprises:
(1) a mixed solution preparation part: is provided with a chelating agent storage tank, a water tank, a mixed liquid preparation tank and a mixed liquid storage tank. The tank bodies are provided with magnetic turning plate liquid level meters for controlling feeding amount and residual amount, and the amount is controlled by visual observation of positions on the magnetic turning plates. And when the preparation tank reaches the lower position, starting a chelating agent pump, adding the chelating agent to a specified liquid level, adding water to the specified liquid level, and mixing to prepare a mixed solution. Or the flow meter and the PLC are communicated to control the quantity and the mixing ratio. Generally, the capacities of the tanks are all over 3m and are required to be antiseptic, the tanks are made of stainless steel or lining plastic, the manufacturing cost is high, the liquid level or the flow meter is used for visual inspection for proportioning, and the proportioning precision is low.
(2) An ash conveying part: the ash storehouse is arranged and ash is conveyed by a screw conveyor or a star-shaped ash discharge valve.
(3) A metering part: the device is provided with a mixed liquid weighing scale and an ash weighing scale. And conveying the mixed liquor from the mixed liquor storage tank to the mixed liquor metering and weighing by using a pump. The lower part of the scale body is provided with an automatic valve which is in a closed state at ordinary times and during metering, and the PLC commands the opening of the valve during discharging. The PLC displays the weight of the mixed liquid and the ash used by each bag of ash, and even some PLCs can display the weight of the chelating agent and the water, the weight is calculated by the reverse calculation of the PLC and is not the actual use amount. Therefore, the main cost of fly ash treatment is chelating agent, the dosage of water for each treatment cannot be accurately controlled, and data can not be stored. When laboratory test results need to change the mixing proportion of the chelating agent and the water, the mixing proportion can not be changed immediately, and the materials in the mixed liquid storage tank need to be completely used so as to be mixed in a new proportion. Resulting in unacceptable fly ash handling or excessive chelant waste. The chelating agent and the water are mixed in the large mixed liquid preparation tank by visual inspection or a flow meter, the proportioning precision of the chelating agent and the water is poor, and the formula cannot be changed at any time when the laboratory test result mainly changes the dosage of the chelating agent. The chelating agent is used more, so that the cost of a user is increased, and the use amount of the chelating agent is reduced, so that the requirement of environmental protection is met. It is easy to cause batch unqualified products or increase the user cost.
(4) Stirring part: and (3) unloading the metered mixed liquid and ash into a stirrer through a control valve for stirring, and bagging, transporting and burying the mixed liquid and ash at the lower part of the stirrer.
Disclosure of Invention
An object of the utility model is to provide a low in production cost, convenient to use's waste incineration power plant flying dust solidification equipment.
The technical solution of the utility model is that:
the utility model provides a waste incineration power plant flying dust solidification equipment, includes ash storehouse, water pitcher, chelating agent storage tank, and ash storehouse below sets up the ash scale of weighing to the ash that comes from the ash storehouse, and the ash scale export accesss to material mixing machine, characterized by through the baiting valve: the water tank is connected with a water conveying pipeline provided with a water pump, and a water scale for weighing water is connected behind the water conveying pipeline; the chelating agent storage tank is connected with an infusion pipeline of an infusion pump, and a chelating agent scale for weighing the chelating agent is connected behind the infusion pipeline; a mixed liquid stirrer for stirring and mixing the water and the chelating agent is arranged behind the water scale and the chelating agent scale, and a mixed liquid outlet of the mixed liquid stirrer is communicated with the material stirrer; valves for controlling the delivery of the water and the chelating agent are respectively arranged on the water delivery pipeline and the liquid delivery pipeline.
Magnetic turning plate liquid level instruments are arranged in the water tank and the chelating agent storage tank.
Valves for controlling the output of the ash, the water and the chelating agent are respectively arranged below the ash scale, the water scale and the chelating agent scale, and the valves are manual valves or PLC controlled control valves. An ash outlet valve for controlling the ash to be output to the ash scale is arranged below the ash storehouse, a water outlet valve for controlling the water to be output to the water scale is arranged on the water conveying pipeline, and a liquid outlet valve for controlling the chelating agent to be output to the chelating agent scale is arranged on the liquid conveying pipeline.
The utility model only uses two storage tanks of chelating agent and water. Two sets of scales are used for measuring the weight of the chelating agent and the weight of water, a valve is arranged at the lower part of the scale body, the scale body is closed at ordinary times and during measurement, and the scale body is opened only when unloading. The lower part of the liquid metering scale is provided with a small preparation stirrer, and the capacity of the preparation stirrer is the total weight of the chelating agent and the water.
(1) The original large mixed liquid preparation tank is replaced by a small mixed liquid stirrer, so that the manufacturing cost of equipment is saved. (2) The original large mixed liquor tank was removed. The equipment manufacturing cost is saved. (3) The accuracy of the independent chelating agent and the water scale is much higher than that of the current measuring and flow meter. And the amount of chelant, water, weighed this time can be set to be the desired amount of fly ash now treated this time. (4) When the laboratory test result needs to increase or decrease the dosage of the chelating agent and the water, the dosage can be immediately adjusted, and batch unqualified products or waste caused by excessive dosage of the chelating agent can be avoided.
The ash is sent into the scale from the ash storehouse. And discharging the metered mixed liquid and ash into a material stirrer through a valve for stirring, and bagging and transporting the mixed liquid and ash at the lower part of the material stirrer.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a perspective view of fig. 1.
Detailed Description
A fly ash solidification device of a waste incineration power plant comprises an ash storehouse 1, a water tank 2 and a chelating agent storage tank 3, wherein an ash scale 4 for weighing ash from the ash storehouse is arranged below the ash storehouse, an outlet of the ash scale is communicated with a material stirrer 7, the water tank is connected with a water pipeline 9 provided with a water pump 8, and a water scale 5 for weighing water is connected behind the water pipeline; the chelating agent storage tank is connected with a transfusion pipeline 11 of a transfusion pump 10, and a chelating agent scale 6 for weighing the chelating agent is connected behind the transfusion pipeline; a mixed liquid stirrer 12 for stirring and mixing the water and the chelating agent is arranged behind the water scale and the chelating agent scale, and a mixed liquid outlet of the mixed liquid stirrer is communicated with the material stirrer 7; valves for controlling the delivery of the water and the chelating agent are respectively arranged on the water delivery pipeline and the liquid delivery pipeline.
Magnetic turning plate liquid level instruments are arranged in the water tank and the chelating agent storage tank.
Valves for controlling the output of the ash, the water and the chelating agent are respectively arranged below the ash scale, the water scale and the chelating agent scale, and the valves are manual valves or PLC controlled control valves. An ash outlet valve for controlling ash output to the ash scale is arranged below the ash storehouse, a water outlet valve for controlling water output to the water scale is arranged on the water conveying pipeline, a liquid outlet valve for controlling chelating agent output to the chelating agent scale is arranged on the liquid conveying pipeline, and the liquid outlet valve is a manual valve or a control valve controlled by a PLC.
Claims (4)
1. The utility model provides a waste incineration power plant flying dust solidification equipment, includes ash storehouse, water pitcher, chelating agent storage tank, and ash storehouse below sets up the ash scale of weighing to the ash that comes from the ash storehouse, and the ash scale export accesss to material mixing machine, characterized by: the water tank is connected with a water conveying pipeline provided with a water pump, and a water scale for weighing water is connected behind the water conveying pipeline; the chelating agent storage tank is connected with an infusion pipeline of an infusion pump, and a chelating agent scale for weighing the chelating agent is connected behind the infusion pipeline; and a mixed liquid stirrer for stirring and mixing the water and the chelating agent is arranged behind the water scale and the chelating agent scale, and a mixed liquid outlet of the mixed liquid stirrer is communicated with the material stirrer.
2. The fly ash solidification equipment of a waste incineration power plant according to claim 1, wherein: magnetic turning plate liquid level instruments are arranged in the water tank and the chelating agent storage tank.
3. The fly ash solidification equipment of a waste incineration power plant according to claim 1, wherein: valves for controlling the output of the ash, the water and the chelating agent are respectively arranged below the ash scale, the water scale and the chelating agent scale, and the valves are manual valves or PLC controlled control valves.
4. The fly ash solidification equipment of a waste incineration power plant according to claim 1, 2 or 3, wherein: an ash outlet valve for controlling the ash to be output to the ash scale is arranged below the ash storehouse, a water outlet valve for controlling the water to be output to the water scale is arranged on the water conveying pipeline, and a liquid outlet valve for controlling the chelating agent to be output to the chelating agent scale is arranged on the liquid conveying pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921663454.1U CN210907369U (en) | 2019-10-08 | 2019-10-08 | Fly ash solidification equipment for waste incineration power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921663454.1U CN210907369U (en) | 2019-10-08 | 2019-10-08 | Fly ash solidification equipment for waste incineration power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210907369U true CN210907369U (en) | 2020-07-03 |
Family
ID=71354609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921663454.1U Active CN210907369U (en) | 2019-10-08 | 2019-10-08 | Fly ash solidification equipment for waste incineration power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210907369U (en) |
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2019
- 2019-10-08 CN CN201921663454.1U patent/CN210907369U/en active Active
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