CN112629947A - Waste incineration power station slag sampling device and sampling method thereof - Google Patents
Waste incineration power station slag sampling device and sampling method thereof Download PDFInfo
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- CN112629947A CN112629947A CN202011481335.1A CN202011481335A CN112629947A CN 112629947 A CN112629947 A CN 112629947A CN 202011481335 A CN202011481335 A CN 202011481335A CN 112629947 A CN112629947 A CN 112629947A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
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Abstract
The invention provides a waste incineration power station slag sampling device and a sampling method thereof, wherein the waste incineration power station slag sampling device comprises a slag falling pipe, a manhole door, a sampling cover assembly, a slag sample transmission assembly, an air back-blowing assembly, a slag discharging assembly and a slag collecting tank, wherein part of the slag sample transmission assembly is positioned inside the slag falling pipe, and part of the slag sample transmission assembly is positioned outside the manhole door; the slag sample transmission assembly comprises a slag sample buffer tank and a slag sample transmission pipeline communicated with the slag sample buffer tank; the sampling cover component comprises a sampling cover push rod, a sampling cover push rod and a sampling cover push rod handle, wherein one end of the sampling cover push rod is fixed, the sampling cover push rod can be covered and arranged on the inlet of the slag sample buffer tank, and the sampling cover push rod handle is fixed to the other end of the sampling cover push rod. The slag sampling device for the waste incineration power station realizes automatic sampling of slag by automatically collecting the slag falling from the burning-out furnace into the slag falling pipe.
Description
Technical Field
The invention belongs to the technical field of waste incineration power generation, and particularly relates to a waste incineration power station slag sampling device and a sampling method thereof.
Background
The waste incineration is a main approach for treating urban domestic waste in China, and the national standard GB18485-2014 puts forward the requirement that the hot burning reduction rate of the slag is less than or equal to 5 percent so as to reduce the harm to the slag generated by the waste incineration. The current method of slag sampling is to dig a certain amount of sample from the pit with a tool, but this method determines that the sample is less representative.
Chinese patent CN204373938U discloses a garbage incinerator slag sampling device, wherein a sampling person scrapes the surface of a conveyor belt from a default position by moving a scraper until another time of the conveyor belt, so as to realize full-section sampling. The disadvantage of this solution is that it still requires a manual operation to be considered to complete the sampling.
Chinese patent CN205719619 discloses a slag sampling device applied to a dry slag conveyor of a power station boiler, which can sample slag without affecting the negative pressure of a hearth, but has the disadvantage of complex system.
Therefore, it is necessary to design a new sampling device for the slag from the waste incineration plant.
Disclosure of Invention
The invention aims to provide a slag sampling device and a sampling method for a waste incineration power station, which are used for automatically collecting slag falling from a burning-out furnace into a slag falling pipe.
The invention provides a slag sampling device of a waste incineration power station, which comprises a slag falling pipe, a manhole door, a sampling cover assembly, a slag sample transmission assembly, an air back-blowing assembly, a slag discharging assembly and a slag collecting tank, wherein the manhole door is arranged outside the slag falling pipe and positioned on the right side of the slag falling pipe; the slag sample transmission assembly comprises a slag sample buffer tank and a slag sample transmission pipeline communicated with the slag sample buffer tank; the sampling cover component comprises a sampling cover push rod, a sampling cover push rod and a sampling cover push rod handle, wherein one end of the sampling cover push rod is fixed, the sampling cover push rod can be covered and arranged on the inlet of the slag sample buffer tank, and the sampling cover push rod handle is fixed to the other end of the sampling cover push rod.
Further, the size of the inlet of the slag sample buffer tank is larger than the inner size of the slag sample conveying pipeline.
Further, the sampling cover assembly further comprises sealing sleeves fixed on two opposite sides of the sampling cover push rod, and the sealing sleeves are arranged between the manhole door and the sampling cover push rod.
Further, the sampling cap assembly further comprises a sampling cap stopper located below the sampling cap and connected with the sampling cap.
Furthermore, the bottom surface of the sampling cover is a plane, and the top of the sampling cover is conical.
Further, the air blowback subassembly includes air feeder, with air feeder connect and with the air supply line and the control of sediment appearance transmission pipeline intercommunication the air supply line valve that the air supply line was opened.
Further, the air supply pipeline is a hose.
Further, the slag tapping assembly comprises a slag tapping sealing plate fixed at the end of the slag sample transmission pipeline and a slag tapping sealing plate handle connected with the slag tapping sealing plate.
Further, if the slag transmission pipeline of the slag sampling device is seriously blocked and cannot be dredged by high-pressure air back blowing, the manhole door can be opened for manual blockage clearing.
The invention also provides a sampling method of the waste incineration power station slag sampling device, which is characterized by comprising the following steps:
s1: before sampling the slag, closing a valve of the gas supply pipeline, pulling a handle of the slag discharging sealing plate rightwards, and driving the slag discharging sealing plate to the edge of the right side of the slag sample transmission pipeline, so that the slag sample transmission pipeline is opened;
s2: during the slag sample, pulling sample lid push rod handle right, sample lid push rod handle drives sample lid push rod and will take a sample the lid and draw to sediment appearance buffer tank right side edge, and dry slag appearance falls to the sediment pipe after burning out the cinder fire grate, behind sediment appearance buffer tank and sediment appearance transmission pipeline in proper order, falls into in the sediment appearance collection tank automatically.
Further, the method also comprises the following steps: s3: after the slag sampling is finished, firstly pushing a sampling cover push rod handle leftwards, driving the sampling cover push rod by the sampling cover push rod handle and pushing the sampling cover to the left side edge of the slag sample buffer tank, and covering the sampling cover at the inlet of the slag sample buffer tank; then the handle of the slag tapping sealing plate is pushed leftwards, the slag tapping sealing plate is driven to move to the edge of the left side of the slag sample transmission pipeline, and the slag sample transmission pipeline is sealed.
The slag sampling device for the waste incineration power station realizes automatic sampling of slag by automatically collecting the slag falling from the burn-out furnace to the slag falling pipe; under the condition that the slag sampling device is blocked, the sampling pipeline is effectively dredged through air back blowing operation; a representative slag sample is obtained by uniformly arranging the device on a slag dropping pipe section; the sampling device has simple structure, the sampled sample has high representativeness and great application value.
Drawings
FIG. 1 is a schematic structural view of a slag sampling device of a waste incineration plant of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in figure 1, the invention discloses a waste incineration power station slag sampling device, which comprises a slag falling pipe 1 for collecting waste incineration power station slag 10, a manhole door 7 arranged outside the slag falling pipe 1 and positioned on the right side of the slag falling pipe 1, a sampling cover assembly 2 moving between the inside of the slag falling pipe 1 and the outside of the manhole door 7, a slag sample transmission assembly 3, an air back-blowing assembly 4 positioned outside the manhole door 7, a slag discharging assembly 5 for controlling the opening or closing of the slag sample transmission assembly 3, and a slag collecting tank 6 positioned below the slag sample transmission assembly 3, wherein part of the slag sample transmission assembly 3 is positioned inside the slag falling pipe 1, and part of the slag sample transmission assembly 3 is positioned outside the manhole door 7.
If the number of the slag falling pipes 1 is large or the size of the slag falling pipes is wide, the slag sampling device for the waste incineration power station can be uniformly arranged on the right wall of the slag falling pipes according to the gridding requirement.
Wherein, the sampling lid subassembly 2 includes sample lid push rod 23, fix the sample lid 21 at sample lid push rod 23 one end, fix the sample lid push rod handle 24 at the sample lid push rod 23 other end, fix the sealed sleeve 25 of the relative both sides of sample lid push rod 23 and be located sample lid 21 below and the sample lid stopper 22 of being connected with sample lid 21, sealed sleeve 25 sets up between manhole door 7 and sample lid push rod 23, when pulling sample lid push rod handle 24, still keep sealed state between sample lid push rod 23 and the manhole door 7.
The sampling cover push rod handle 24 is positioned outside the manhole door 7, and the sampling cover 21 and the sampling cover stopper 22 are positioned inside the slag falling pipe 1.
The bottom surface of the sampling cover 21 is a plane, and the top of the sampling cover 21 is conical, so that the slag sample 10 is effectively prevented from being accumulated on the top of the sampling cover 21 and striking the sampling cover 21.
The slag sample conveying assembly 3 comprises a slag sample buffer tank 31 which can be covered by the sampling cover 21 and a slag sample conveying pipeline 32 communicated with the slag sample buffer tank 31. Wherein the size of the inlet of the slag sample buffer tank 31 (specifically, circular or square) is larger than the inner size of the slag sample conveying pipeline 32 (specifically, circular or square), so that more dry slag samples 10 enter from the slag sample buffer tank 31 and rapidly pass through the slag sample conveying pipeline 32 and fall into the slag collecting tank 6.
When the sampling cover push rod handle 24 moves rightwards in the sealing sleeve 25, the sampling cover push rod handle 24 pulls the sampling cover push rod 23 to move rightwards and drives the sampling cover 21 and the sampling cover limiting stopper 22 to move rightwards at the same time, so that the slag sample buffer tank 31 is in an open state; when the sampling cover push rod handle 24 moves to the left in the sealing sleeve 25, the sampling cover push rod handle 24 pulls the sampling cover push rod 23 to move to the left and simultaneously drives the sampling cover 21 and the sampling cover stopper 22 to move to the left, and the slag sample buffer tank 31 is covered by the sampling cover 21, so that the slag sample buffer tank 31 is in a covered state.
The air blowback assembly 4 includes an air supply device 41, an air supply duct 43 connected to the air supply device 41 and communicating with the slag transport pipeline 32, and an air supply duct valve 42 controlling the opening of the air supply duct 43. Wherein the air supply device 41 is a fan or can be connected to a high-pressure compressed air pipeline; the supply line valve 42 is a ball valve.
The gas supply pipeline 43 is a hose, and when the slag transmission pipeline 32 is seriously blocked and cannot be dredged by high-pressure air blowback, the manhole door 7 can be opened for manual blockage removal.
The slag tapping assembly 5 comprises a slag tapping sealing plate 51 fixed at the end of the slag sample transmission pipeline 32 and a slag tapping sealing plate handle 52 connected with the slag tapping sealing plate 51, and the opening and closing of the slag tapping sealing plate 51 are controlled by the slag tapping sealing plate handle 52.
Before slag sampling, the gas supply pipeline valve 42 is closed, the slag discharging sealing plate handle 52 is pulled rightwards, the slag discharging sealing plate 51 is driven to the edge of the right side of the slag sample transmission pipeline 32, and therefore the slag sample transmission pipeline 32 is opened.
When the slag is sampled, the sampling cover push rod handle 24 is pulled rightwards, and the sampling cover push rod handle 24 drives the sampling cover push rod 23 and the stopper 22 to pull the sampling cover 21 to the edge of the right side of the slag sample buffer tank 31. After falling from the burning furnace to the slag falling pipe 1, the dry slag sample 10 automatically falls into the slag sample collecting tank 6 through the slag sample buffer tank 31 and the slag sample transmission pipeline 32 in sequence. The automatic sampling of the slag is realized by automatically collecting the slag falling from the burning furnace into the slag falling pipe 1.
After the slag sampling is finished, firstly pushing a sampling cover push rod handle 24 leftwards, wherein the sampling cover push rod handle 24 drives a sampling cover push rod 23 and a limiting stopper 22 to push a sampling cover 21 to the left edge of a slag sample buffer tank 31, and the sampling cover 21 covers the inlet of the slag sample buffer tank 31; then the slag tapping sealing plate handle 52 is pushed leftwards, the slag tapping sealing plate 51 is driven to move to the left edge of the slag sample transmission pipeline 32, and the slag sample transmission pipeline 32 is closed.
When the slag sample transmission pipeline 32 and the slag sample buffer tank 31 are blocked, the slag discharge sealing plate 51 is closed, the air supply pipeline valve 42 is opened, high-pressure air reversely blows the pipeline, and large slag samples blocking the pipeline are reversely blown out of the pipeline.
The invention also discloses a sampling method of the waste incineration power station slag sampling device, which comprises the following steps:
s1: before sampling the slag, closing the gas supply pipeline valve 42, pulling the slag discharging sealing plate handle 52 rightwards and driving the slag discharging sealing plate 51 to the right edge of the slag sample transmission pipeline 32, so that the slag sample transmission pipeline 32 is opened;
s2: during slag sampling, the sampling cover push rod handle 24 is pulled rightwards, the sampling cover push rod handle 24 drives the sampling cover push rod 23 and the limiting stopper 22 to pull the sampling cover 21 to the edge of the right side of the slag sample buffer tank 31, and a dry slag sample 10 falls to the slag falling pipe 1 from the burning furnace and then automatically falls into the slag sample collection tank 6 through the slag sample buffer tank 31 and the slag sample transmission pipeline 32 in sequence. The automatic sampling of the slag is realized by automatically collecting the slag falling from the burning furnace into the slag falling pipe 1;
s3: after the slag sampling is finished, firstly pushing a sampling cover push rod handle 24 leftwards, wherein the sampling cover push rod handle 24 drives a sampling cover push rod 23 and a limiting stopper 22 to push a sampling cover 21 to the left edge of a slag sample buffer tank 31, and the sampling cover 21 covers the inlet of the slag sample buffer tank 31; then the slag tapping sealing plate handle 52 is pushed leftwards, the slag tapping sealing plate 51 is driven to move to the left edge of the slag sample transmission pipeline 32, and the slag sample transmission pipeline 32 is closed.
The slag sampling device for the waste incineration power station realizes automatic sampling of slag by automatically collecting the slag falling from the burn-out furnace to the slag falling pipe; under the condition that the slag sampling device is blocked, the sampling pipeline is effectively dredged through air back blowing operation; a representative slag sample is obtained by uniformly arranging the device on a slag dropping pipe section; the sampling device has simple structure, the sampled sample has high representativeness and great application value.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A waste incineration power station slag sampling device comprises a slag falling pipe, a manhole door arranged outside the slag falling pipe and positioned on the right side of the slag falling pipe, and is characterized by further comprising a sampling cover assembly, a slag sample transmission assembly, an air back-blowing assembly positioned outside the manhole door, a slag discharging assembly for controlling the slag sample transmission assembly to be opened or closed and a slag collecting tank positioned below the slag sample transmission assembly, wherein part of the slag sample transmission assembly is positioned inside the slag falling pipe, and part of the slag sample transmission assembly is positioned outside the manhole door; the slag sample transmission assembly comprises a slag sample buffer tank and a slag sample transmission pipeline communicated with the slag sample buffer tank; the sampling cover component comprises a sampling cover push rod, a sampling cover push rod and a sampling cover push rod handle, wherein one end of the sampling cover push rod is fixed, the sampling cover push rod can be covered and arranged on the inlet of the slag sample buffer tank, and the sampling cover push rod handle is fixed to the other end of the sampling cover push rod.
2. The waste incineration plant slag sampling device of claim 1, wherein: the size of the inlet of the slag sample buffer tank is larger than the inner size of the slag sample transmission pipeline.
3. The waste incineration plant slag sampling device of claim 1, wherein: the sampling cover assembly further comprises sealing sleeves fixed on two opposite sides of the sampling cover push rod, and the sealing sleeves are arranged between the manhole door and the sampling cover push rod.
4. The waste incineration plant slag sampling device of claim 1, wherein: the sampling cap assembly further comprises a sampling cap stopper located below the sampling cap and connected with the sampling cap.
5. The waste incineration plant slag sampling device of claim 1, wherein: the bottom surface of the sampling cover is a plane, and the top of the sampling cover is conical.
6. The waste incineration plant slag sampling device of claim 1, wherein: the air blowback assembly comprises an air supply device, an air supply pipeline and a control air supply pipeline valve, wherein the air supply device is connected with the air supply device, and the air supply pipeline is communicated with the slag sample transmission pipeline.
7. The waste incineration plant slag sampling device of claim 6, wherein: the air supply pipeline is a hose.
8. The waste incineration plant slag sampling device of claim 1, wherein: the slag discharging assembly comprises a slag discharging sealing plate fixed at the end part of the slag sample transmission pipeline and a slag discharging sealing plate handle connected with the slag discharging sealing plate.
9. The sampling method of the slag sampling device of the refuse incineration plant according to any one of claims 1 to 8, characterized by comprising the steps of:
s1: before sampling the slag, closing a valve of the gas supply pipeline, pulling a handle of the slag discharging sealing plate rightwards, and driving the slag discharging sealing plate to the edge of the right side of the slag sample transmission pipeline, so that the slag sample transmission pipeline is opened;
s2: during the slag sample, pulling sample lid push rod handle right, sample lid push rod handle drives sample lid push rod and will take a sample the lid and draw to sediment appearance buffer tank right side edge, and dry slag appearance falls to the sediment pipe after burning out the cinder fire grate, behind sediment appearance buffer tank and sediment appearance transmission pipeline in proper order, falls into in the sediment appearance collection tank automatically.
10. The sampling method of the sampling device for the slag from the refuse incineration plant according to claim 9, further comprising the steps of:
s3: after the slag sampling is finished, firstly pushing a sampling cover push rod handle leftwards, driving the sampling cover push rod by the sampling cover push rod handle and pushing the sampling cover to the left side edge of the slag sample buffer tank, and covering the sampling cover at the inlet of the slag sample buffer tank; then the handle of the slag tapping sealing plate is pushed leftwards, the slag tapping sealing plate is driven to move to the edge of the left side of the slag sample transmission pipeline, and the slag sample transmission pipeline is sealed.
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| CN202011481335.1A CN112629947A (en) | 2020-12-15 | 2020-12-15 | Waste incineration power station slag sampling device and sampling method thereof |
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| CN202011481335.1A CN112629947A (en) | 2020-12-15 | 2020-12-15 | Waste incineration power station slag sampling device and sampling method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113884166A (en) * | 2021-08-23 | 2022-01-04 | 苏州西热节能环保技术有限公司 | Method for monitoring slag leakage rate of fire grate |
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- 2020-12-15 CN CN202011481335.1A patent/CN112629947A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113884166A (en) * | 2021-08-23 | 2022-01-04 | 苏州西热节能环保技术有限公司 | Method for monitoring slag leakage rate of fire grate |
| CN113884166B (en) * | 2021-08-23 | 2024-06-11 | 苏州西热节能环保技术有限公司 | Method for monitoring slag leakage rate of fire grate |
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