CN216717014U - Waste heat utilization's vertical pearlite expansion furnace of removal - Google Patents
Waste heat utilization's vertical pearlite expansion furnace of removal Download PDFInfo
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- CN216717014U CN216717014U CN202220297191.2U CN202220297191U CN216717014U CN 216717014 U CN216717014 U CN 216717014U CN 202220297191 U CN202220297191 U CN 202220297191U CN 216717014 U CN216717014 U CN 216717014U
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Abstract
The utility model relates to the technical field of expansion furnaces, in particular to a waste heat utilization movable vertical perlite expansion furnace which comprises a frame body, an inner cylinder, an outer cylinder, a burner, a blower, a combustion fan and an induced draft fan, wherein a gap is reserved between the inner cylinder and the outer cylinder, the top of the gap is provided with a blast hole, the bottom of the gap is provided with a waste heat air port, the bottom of the inner cylinder is provided with an inner cylinder combustion port, the burner is fixedly arranged at the inner bottom of the outer cylinder and is provided with a combustion fan interface, the combustion fan is communicated with the combustion fan interface, the blast hole is communicated with an air outlet of the blower, the waste heat air port is communicated with the combustion fan, the top of the inner cylinder is provided with a discharge port which is connected with a material conveying pipeline, and an induced draft hole of the induced draft fan is communicated with the material conveying pipeline. The device provided by the utility model has a simple structure, is convenient to move, enables the expanded perlite to be subjected to closed expansion operation on site, ensures the thermal conductivity of the filled expanded perlite and has lower operation cost.
Description
Technical Field
The utility model relates to the technical field of expansion furnaces, in particular to a movable vertical perlite expansion furnace for utilizing waste heat.
Background
Before a large liquefied natural gas storage tank, a low-temperature liquid storage tank, a cold box of an air separation device and the like are put into use, expanded perlite needs to be filled in an inner interlayer of the large liquefied natural gas storage tank or a gap of the cold box of the air separation device for heat insulation treatment. Because the requirements on the technical indexes of the filled expanded perlite are strict, the performance index of the material can be achieved only by adopting a field expansion mode. The quantity of expanded perlite used by each set of equipment is relatively large, the general device is also used for carrying out high-speed cultivation over 8000m, and the large-scale device is used for carrying out high-speed cultivation over 10000 m. After the common expanded perlite is transported to the site after being expanded by an expansion manufacturer, the common expanded perlite can not meet the use requirement due to strong water absorption of the material. In addition, the expanded perlite has large volume, large workload of transportation, loading and unloading, low efficiency and influence on the quality of the air environment due to the floating of dust generated in the filling process; in the filling process, the expanded perlite is in direct contact with air to cause the expanded perlite to absorb moisture in the air, so that the heat conductivity is reduced, the heat insulation failure of the material is caused, and meanwhile, the heat loss of the expansion furnace cannot be recycled, so that the operation cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing the movable vertical perlite expansion furnace which has a simple structure, is convenient to move, ensures the field closed expansion operation of expanded perlite, ensures the thermal conductivity of the filled expanded perlite and has lower operation cost.
The utility model is realized by the following technical scheme:
the utility model provides a vertical pearlite expansion furnace of waste heat utilization's removal, it includes support body, inner tube, urceolus, combustor, air-blower, burning fan and draught fan, urceolus fixed mounting is on the support body, and inner tube fixed mounting just leaves the clearance in the urceolus, and the clearance top is equipped with the tuyere, and the clearance bottom is equipped with the waste heat wind gap, the inner tube bottom is equipped with the inner tube burner, and the dog-house of mutual correspondence and intercommunication is seted up at inner tube and urceolus middle part, combustor fixed mounting is bottom in the urceolus, and the nozzle of combustor corresponds with the inner tube burner, and the combustor is equipped with the burning fan interface, communicate through the supply air duct between burning fan and the burning fan interface, the tuyere passes through the blast pipe intercommunication with the air-blower air outlet, and the waste heat wind gap passes through the waste heat pipeline intercommunication with the air intake of burning fan, the inner tube top is equipped with the discharge gate and is connected with the conveying pipeline, the induced draft port of the induced draft fan is communicated with the material conveying pipeline.
Further, the inner wall of the outer cylinder is coated with a heat-insulating layer.
Optimally, the outer wall of the inner cylinder and the inner wall of the outer cylinder are fixed through a support.
Further, a temperature sensor is arranged at the top of the inner cylinder.
Optimally, the bottom of the outer barrel is closed, and an access door is arranged on the side wall of the outer barrel.
Preferably, the material conveying pipeline, the waste heat pipeline and the air supply pipeline are all high-temperature-resistant hoses.
The utility model has the advantages of
The utility model provides a movable vertical perlite expansion furnace utilizing waste heat, which has the following advantages: the structure is simple, and the movement is convenient; the on-site closed expansion operation of the expanded perlite can be realized, so that the thermal conductivity of the expanded perlite is ensured, the adiabatic failure of the material is prevented, the adiabatic problem of the existing large liquefied natural gas storage tank, the low-temperature liquid storage tank, the air separation device and other devices before production is solved, the heat of the expansion furnace can be recycled, and the operation cost is lower.
Drawings
FIG. 1 is a schematic front view of the present invention;
in the figure, 1, a frame body, 2, an inner cylinder, 3, an outer cylinder, 4, an insulating layer, 5, a feeding port, 6, an inner cylinder combustion port, 7, a combustor, 8, a combustion fan connector, 9, an air supply valve, 10, an air supply pipeline, 11, a waste heat pipeline, 12, a combustion fan, 13, a blower, 14, a burner, 15, a discharge port, 16, a material conveying pipeline, 17, an air supply pipeline and 18, an access door are arranged.
Detailed Description
The utility model provides a vertical pearlite expansion furnace of waste heat utilization's removal, it includes support body 1, inner tube 2, urceolus 3, combustor 7, air-blower 13, combustion fan 12 and draught fan (not shown), urceolus fixed mounting is on the support body, and inner tube fixed mounting just leaves the clearance in the urceolus, and the clearance top is equipped with the tuyere, and the clearance bottom is equipped with the waste heat wind gap, the inner tube bottom is equipped with inner tube burner 6, and the dog-house 5 that corresponds each other and communicate is seted up at inner tube and urceolus middle part, combustor fixed mounting is bottom in the urceolus, and the nozzle 14 of combustor corresponds with the inner tube burner, and the combustor is equipped with combustion fan interface 8, communicate through supply air duct 10 between combustion fan and the combustion fan interface, installs air supply valve 9 on the supply air duct, tuyere communicates through blast duct 17 with the air outlet of air-blower, and waste heat wind gap communicates through waste heat pipeline 11 with the air intake of combustion fan, the top of the inner cylinder is provided with a discharge hole 15 connected with a material conveying pipeline 16, and an induced draft port of the induced draft fan is communicated with the material conveying pipeline.
When devices such as a large liquefied natural gas storage tank, a cryogenic liquid storage tank and an air separation device need to be filled with expanded perlite, the equipment is arranged beside the devices such as the large liquefied natural gas storage tank, the cryogenic liquid storage tank and the air separation device, and a discharge port of the equipment is communicated with the large liquefied natural gas storage tank, the cryogenic liquid storage tank and the air separation device through a closed conveying device. The perlite raw materials are transported to the site and are put into an inner cylinder of the movable vertical perlite expansion furnace at a feeding port through a feeder, the perlite raw materials are sprayed upwards from the bottom of the inner cylinder through a burner for combustion, the perlite raw materials stay in flame for 1-3 seconds by utilizing the time difference between the falling process of the perlite raw materials and the induced air in the furnace body, so that the perlite is fully expanded, the temperature of the upper part of the inner cylinder is reduced after the expanded perlite is separated from a high-temperature area, the air flow in the furnace cylinder is accelerated due to the action of a draught fan, and the expanded perlite and the high-temperature air flow are discharged out of the inner cylinder along with the air flow and are conveyed out through a conveying pipeline. The conveyed expanded perlite is directly treated and then sent into large liquefied natural gas storage tanks, low-temperature liquid storage tanks, air separation devices and other devices.
Because the whole process of the equipment adopts closed operation, a large amount of manual operation and packaging, storage and transportation processes are saved, and the field environment is optimized. Links such as bagging and warehousing, transportation, filling construction and the like are omitted, and the expanded perlite can be directly expanded on site and filled on site. The device has the advantages that the device prevents the expanded perlite from absorbing water in the air due to the direct contact of the expanded perlite and the air in the filling process, so that the heat conductivity is reduced, the heat insulation failure of the material is caused, and the heat insulation problem of the existing large liquefied natural gas storage tank, the low-temperature liquid storage tank, the air separation device and other devices before production is solved.
And because this equipment only sets up support body, inner tube, urceolus and combustor, can adopt the quick-connect joint to connect between combustor and the combustion fan and the oil feed line, also can adopt the quick-connect joint to connect between discharge gate and the conveying pipeline, perhaps the conveying pipeline adopts high temperature resistant hose, and equipment structure is simple, connects the dismantlement convenience, and the removal transport of the equipment of being convenient for realizes expanded perlite's scene inflation, and the scene fills dress operation.
And because the burner is fixedly arranged at the inner bottom of the outer cylinder, the burner of the burner corresponds to the burner port of the inner cylinder, the burner can be sprayed upwards from the bottom of the inner cylinder for combustion, and the feeding port is arranged at a proper position in the furnace cylinder at the upper part of the flame, the heat efficiency of the burner can be fully utilized, and the perlite is fully expanded.
Meanwhile, a gap is reserved between the inner cylinder and the outer cylinder, and the air blower is arranged to blow hot air between the gap between the inner cylinder and the outer cylinder from top to bottom and enter an air inlet of the combustion fan, so that the hot air enters the combustor through the combustion fan to form a closed loop, waste heat is utilized, fuel of the combustor is saved, and the operation cost is reduced.
Further, the outer cylinder inner wall is coated with a heat preservation layer 4, the heat preservation layer can be an aluminum silicate cotton heat preservation layer, and the heat preservation effect of the perlite expansion furnace is guaranteed.
Optimally, the outer wall of the inner cylinder and the inner wall of the outer cylinder are fixed through a bracket (not shown), so that the reliable connection between the inner cylinder and the outer cylinder is ensured, and the inner cylinder is relatively fixed.
Further, a temperature sensor (not shown) is installed at the top of the inner barrel, the temperature sensor can monitor the temperature in the inner barrel at any time and transmit data to the controller, the controller receives information of the temperature sensor and compares the information with a preset value, and if the temperature is not within the range of the preset value, the controller controls the opening degree of an electromagnetic valve and an air supply valve of the oil supply pipeline, so that the temperature in the furnace is adjusted.
Optimally, the bottom of the outer barrel is closed, and the side wall of the outer barrel is provided with the access door 18, so that the maintenance and the operation are convenient.
Optimally, the material conveying pipeline, the waste heat pipeline and the air supply pipeline are all high-temperature-resistant hoses, so that the device is light in weight and convenient to carry and move.
Compared with the prior art, the movable vertical perlite expansion furnace provided by the scheme realizes the transition from a fixed perlite expansion factory to a movable factory, changes the factory production mode into a field production mode, reduces the processes of perlite packaging, storage and transportation, can realize integrated transportation by matching with a field dust removal and transportation device, and has the transportation distance of 150m and the transportation height of 80 m; the whole production process realizes closed operation, reduces the diffusion of dust, avoids the influence of moisture in the air on expanded rare rock, avoids the adiabatic failure of expanded perlite, and solves the adiabatic problem of the existing large liquefied natural gas storage tank, low-temperature liquid storage tank, air separation device and other devices before production.
Meanwhile, the air blower is communicated with the combustion fan, so that hot air forms a closed loop, waste heat is utilized, the fuel consumption of the combustor can be reduced, and the operation cost is reduced.
In conclusion, the movable vertical perlite expansion furnace utilizing waste heat provided by the utility model has the advantages that the structure is simple, the movement is convenient, the field closed expansion operation of the expanded perlite is realized, the heat conductivity of the filled expanded perlite is ensured, and the operation cost is lower.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a vertical pearlite expansion furnace of removal of waste heat utilization which characterized in that: comprises a frame body, an inner cylinder, an outer cylinder, a burner, a blower, a combustion fan and a draught fan, wherein the outer cylinder is fixedly arranged on the frame body, the inner cylinder is fixedly arranged in the outer cylinder and a gap is reserved, and the top of the gap is provided with a blast port, the bottom of the gap is provided with a waste heat tuyere, the bottom of the inner cylinder is provided with an inner cylinder combustion port, the middle parts of the inner cylinder and the outer cylinder are provided with feed ports which are mutually corresponding and communicated, the combustor is fixedly arranged at the bottom in the outer cylinder, the burner of the burner corresponds to the burner port of the inner cylinder, the burner is provided with a combustion fan interface, the combustion fan and the combustion fan interface are communicated through an air supply pipeline, the blast port is communicated with the air outlet of the blower through a blast pipeline, the residual heat air port is communicated with the air inlet of the combustion fan through a residual heat pipeline, the top of the inner barrel is provided with a discharge hole connected with a material conveying pipeline, and an induced draft port of the induced draft fan is communicated with the material conveying pipeline.
2. The movable vertical perlite expansion furnace for utilizing waste heat as claimed in claim 1, wherein the inner wall of the outer cylinder is coated with an insulating layer.
3. The movable vertical perlite expansion furnace for utilizing waste heat as claimed in claim 1, wherein the outer wall of the inner cylinder and the inner wall of the outer cylinder are fixed by a bracket.
4. The waste heat utilization mobile vertical perlite expansion furnace as recited in claim 1, wherein a temperature sensor is installed on the top of the inner cylinder.
5. The waste heat utilizing mobile vertical perlite expansion furnace as claimed in claim 1, wherein the bottom of the outer cylinder is closed and the side wall is provided with an access door.
6. The waste heat utilizing mobile vertical perlite expansion furnace of claim 1 wherein the material delivery duct, the waste heat duct and the air supply duct are all high temperature resistant hoses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220297191.2U CN216717014U (en) | 2022-02-15 | 2022-02-15 | Waste heat utilization's vertical pearlite expansion furnace of removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220297191.2U CN216717014U (en) | 2022-02-15 | 2022-02-15 | Waste heat utilization's vertical pearlite expansion furnace of removal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216717014U true CN216717014U (en) | 2022-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220297191.2U Active CN216717014U (en) | 2022-02-15 | 2022-02-15 | Waste heat utilization's vertical pearlite expansion furnace of removal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216717014U (en) |
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2022
- 2022-02-15 CN CN202220297191.2U patent/CN216717014U/en active Active
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