CN206094036U - A adiabatic material returning device for CFB flue gas emergence equipment - Google Patents
A adiabatic material returning device for CFB flue gas emergence equipment Download PDFInfo
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- CN206094036U CN206094036U CN201620987783.1U CN201620987783U CN206094036U CN 206094036 U CN206094036 U CN 206094036U CN 201620987783 U CN201620987783 U CN 201620987783U CN 206094036 U CN206094036 U CN 206094036U
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- returning device
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Abstract
The utility model discloses an adiabatic material returning device for CFB flue gas emergence equipment, including riser, returning charge ware valve body and return material pipe, returning charge ware valve body is installed in the riser bottom, hood a plurality of and outside intercommunication is arranged to returning charge ware valve body bottom, return material pipe and the anterior intercommunication of returning charge ware valve body, and the two junction is higher than the hood height. The utility model discloses in returning charge ware valve body, utilize the hood to spray high -velocity air in to the valve body, the solid particle thing is collected in the disturbance makes it reach fluidized state to it flows to make it follow return material pipe evenly, in succession, steadily.
Description
Technical field
This utility model is related to a kind of heat-insulating feeding back device, equipment occurs for CFB flue gases, through separating and will collect
Solid particulate matter led back again burner hearth and carried out secondary utilization, belong to technical field of combustion equipment.
Background technology
At present, the similar devices of domestic operation have the chain type of furnace, coal dust type of furnace etc..Wherein, chain furnace form is due to fire grate
Leakage coal causes imperfect combustion, and heat loss is big, and the thermal efficiency is relatively low, and the flying dust of coal-powder boiler form is difficult to collect, and GAS QUALITY is difficult
To ensure.Accordingly, it would be desirable to be separated and collected the solid particulate matter in high-temperature gas, carry out in then leading back burner hearth
Secondary utilization.
Utility model content
Goal of the invention of the present utility model is：For above-mentioned problem, there is provided one kind is set for CFB flue gases
Standby heat-insulating material-returning device, the solid particulate matter of collection is led back burner hearth again carries out secondary utilization, to meet engineering
Need.
The technical solution adopted in the utility model is such：
A kind of heat-insulating material-returning device that equipment occurs for CFB flue gases, including standpipe, material returning device valve body and refeed line,
The material returning device valve body is arranged on riser bottom, and the material returning device body base arranges some blast caps with ft connection, described
Refeed line is connected with material returning device valve body-side, and the two junction is higher than blast cap height.
In above-mentioned technical proposal, blast cap sprays high velocity air to material returning device valve inner, disturbs uncompleted burned carbon granule and makes
Reach fluidized state.
Preferably, the material returning device valve body and refeed line are fixedly mounted on bracing frame.
Preferably, the wall construction of the standpipe, material returning device valve body and refeed line is divided into metal parietal layer, resistance to from outside to inside
High-temperature heat insulation layer, abrasion-proof and refractory layer.The high temperature resistant heat insulation layer plays heat insulating function, and abrasion-proof and refractory layer is directly connect with high-temperature flue gas
Touch, fire resisting is again wear-resisting.
Preferably, the metal parietal layer, being connected using some connectors between high temperature resistant heat insulation layer, abrasion-proof and refractory layer
Connect.Further, the connector is Y type pins, and the divergent ends of Y type pins are cast in high temperature resistant heat insulation layer, abrasion-proof and refractory
In layer, it is fixedly connected on metal parietal layer without divergent ends.As high temperature resistant heat insulation layer, abrasion-proof and refractory layer are using Pouring form
Support, Y types pin are then used for the weight for supporting castable.The Y types pin can be according to ranks formal distribution, and its divergent ends institute
Horizontal direction and vertical direction are set in plane.
In sum, as a result of above-mentioned technical proposal, the beneficial effects of the utility model are：
1st, in material returning device valve body, high velocity air is sprayed into valve body using blast cap, disturbs the uncompleted burned carbon granule collected
Fluidized state is reached, it is so as to effectively prevent from causing flue gas short circuit because piling up too much, safe and reliable.
2nd, the junction of refeed line is higher than blast cap height, when the solid particulate matter in material returning device valve body is higher than refeed line position
When, then flow out from refeed line；
3rd, in material returning device valve body, the solid particulate matter of fluidized state can uniformly, continuously and stably send the generation of CFB flue gases back to
The burning of equipment is indoor.
Description of the drawings
Fig. 1 is main structure diagram of the present utility model.
Fig. 2 is the Rotating fields schematic diagram of the wall construction of standpipe of the present utility model and refeed line.
Fig. 3 is the plane graph of wall construction in Fig. 2.
Fig. 4 is the schematic diagram of the interior arrangement blast cap of material returning device valve body in Fig. 1.
Labelling in figure：1 is standpipe, and 2 is material returning device valve body, and 3 is blast cap, and 4 is refeed line, and 5 is bracing frame, and A is metallic walls
Layer, B are high temperature resistant heat insulation layer, and C is abrasion-proof and refractory layer, and D is connector.
Specific embodiment
Below in conjunction with the accompanying drawings, this utility model is described in detail.
Embodiment：
As shown in Fig. 1,4, a kind of heat-insulating material-returning device that equipment occurs for CFB flue gases, including standpipe 1, material returning device
Valve body 2 and refeed line 4, the material returning device valve body 2 are arranged on 1 bottom of standpipe, 2 bottom of material returning device valve body arrangement it is some with it is outer
The blast cap 3 of portion's connection, the refeed line 4 are connected with 2 sidepiece of material returning device valve body, and the two junction is higher than 3 height of blast cap.
The material returning device valve body 2 and refeed line 4 are fixedly mounted on bracing frame 5.
The wall construction of the standpipe 1, material returning device valve body 2 and refeed line 4 is divided into metal parietal layer A, high temperature resistant from outside to inside
Heat insulation layer B, abrasion-proof and refractory layer C, adopt some connectors between the metal parietal layer A, high temperature resistant heat insulation layer B, abrasion-proof and refractory layer C
D is attached, as shown in Figure 2.
The connector D is Y type pins, and the divergent ends of Y type pins are cast in high temperature resistant heat insulation layer B, abrasion-proof and refractory layer C
It is interior, it is fixedly connected on metal parietal layer A without divergent ends.The Y types pin is according to ranks formal distribution, and its divergent ends is located and puts down
Face is set to horizontal direction and vertical direction, as shown in Figure 3.
Blast cap 3 in material returning device valve body 2 is staggered in arrangement, and blast cap 3 is to 2 internal spray high velocity air of material returning device valve body, disturbance
Solid particulate matter simultaneously makes up to fluidized state, and the solid particulate matter under fluidized state will be automatic between standpipe 1 and refeed line 4
Seek an equilibrium point, when solid particulate matter exceedes 4 height of refeed line, will flow out from refeed line 4, and then return to CFB flue gases
The burning of generation equipment is indoor.
Claims (6)
1. it is a kind of for CFB flue gases occur equipment heat-insulating material-returning device, it is characterised in that：Including standpipe（1）, material returning device valve
Body（2）And refeed line（4）, the material returning device valve body（2）Installed in standpipe（1）Bottom, the material returning device valve body（2）Bottom is arranged
Some blast caps with ft connection（3）, the refeed line（4）With material returning device valve body（2）Sidepiece is connected, and the two junction is higher than
Blast cap（3）Highly.
2. it is according to claim 1 it is a kind of for CFB flue gases occur equipment heat-insulating material-returning device, it is characterised in that：
The material returning device valve body（2）And refeed line（4）Bracing frame is fixedly mounted on（5）On.
3. it is according to claim 1 it is a kind of for CFB flue gases occur equipment heat-insulating material-returning device, it is characterised in that：
The standpipe（1）, material returning device valve body（2）And refeed line（4）Wall construction be divided into metal parietal layer from outside to inside（A）, high temperature resistant
Heat insulation layer（B）, abrasion-proof and refractory layer（C）.
4. it is according to claim 3 it is a kind of for CFB flue gases occur equipment heat-insulating material-returning device, it is characterised in that：
The metal parietal layer（A）, high temperature resistant heat insulation layer（B）, abrasion-proof and refractory layer（C）Between adopt some connectors（D）It is attached.
5. it is according to claim 4 it is a kind of for CFB flue gases occur equipment heat-insulating material-returning device, it is characterised in that：
The connector（D）For Y type pins, the divergent ends of Y type pins are cast in high temperature resistant heat insulation layer（B）, abrasion-proof and refractory layer（C）
It is interior, metal parietal layer is fixedly connected on without divergent ends（A）On.
6. it is according to claim 5 it is a kind of for CFB flue gases occur equipment heat-insulating material-returning device, it is characterised in that：
The Y types pin is according to ranks formal distribution, and its divergent ends place plane is set to horizontal direction and vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620987783.1U CN206094036U (en) | 2016-08-31 | 2016-08-31 | A adiabatic material returning device for CFB flue gas emergence equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620987783.1U CN206094036U (en) | 2016-08-31 | 2016-08-31 | A adiabatic material returning device for CFB flue gas emergence equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206094036U true CN206094036U (en) | 2017-04-12 |
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ID=58474066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620987783.1U Active CN206094036U (en) | 2016-08-31 | 2016-08-31 | A adiabatic material returning device for CFB flue gas emergence equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN206094036U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135893A (en) * | 2021-10-25 | 2022-03-04 | 国家能源集团国源电力有限公司 | Material returning device and boiler |
-
2016
- 2016-08-31 CN CN201620987783.1U patent/CN206094036U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135893A (en) * | 2021-10-25 | 2022-03-04 | 国家能源集团国源电力有限公司 | Material returning device and boiler |
| CN114135893B (en) * | 2021-10-25 | 2024-04-12 | 国家能源集团国源电力有限公司 | Material returning device and boiler |
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