CN203642690U - Coal spontaneous combustion high-temperature programming device - Google Patents
Coal spontaneous combustion high-temperature programming device Download PDFInfo
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- CN203642690U CN203642690U CN201320783519.2U CN201320783519U CN203642690U CN 203642690 U CN203642690 U CN 203642690U CN 201320783519 U CN201320783519 U CN 201320783519U CN 203642690 U CN203642690 U CN 203642690U
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Abstract
The utility model provides a coal spontaneous combustion high-temperature programming device which comprises a furnace body, tanks, a temperature measuring component and a temperature control panel. A furnace cover is arranged above the furnace body, the furnace body and the furnace cover form a furnace cavity when the furnace cover covers the furnace body, the furnace cavity is externally provided with a carbon steel layer, a stainless steel layer is arranged outside the carbon steel layer, and gaps are reserved between the furnace cavity and the carbon steel layer and between the carbon steel layer and the stainless steel layer respectively. The tanks are positioned in the furnace cavity, heating units are arranged on the side wall and at the bottom of the furnace body respectively, the temperature measuring component used for monitoring temperature in the furnace cavity is arranged on the side wall of the furnace body, and the heating units and the temperature measuring component are connected with the temperature control panel. The temperature of a coal spontaneous temperature programming experiment can rise to 1000 DEG C by the aid of the coal spontaneous combustion high-temperature programming device, and the device can be used for high-temperature programming of coal samples to set up correlative coal spontaneous models so as to provide good guidance for coal field fire prevention.
Description
Technical field
The utility model belongs to experiment test device technical field, is specifically related to a kind of coal spontaneous combustion high temperature temperature programming device.
Background technology
Coalfield fire is global disaster, and human health, natural environment and Safety of Coal Mine Production in serious threat, causes huge resources loss and environmental pollution.Coalfield flame range forms evolutionary process complexity, and burning time is long, scope is wide, high temperature burning things which may cause a fire disaster is hidden, and difficulty of governance is large, has become a current difficult problem urgently to be resolved hurrily.The experimental provision of existing Characteristic Parameters of Coal Spontaneous Combustion test is various, mainly contains two kinds, large-scale spontaneous combustion of coal testing stand, coal spontaneous combustion low temperature procedure elevated temperature test device.But these two kinds of testing stands only can be tested the characterisitic parameter of the low thermophase of coal spontaneous combustion, for coal spontaneous combustion prediction provides reference, effectively prevent the formation of coalfield flame range.But, cannot carry out the research of various characteristics parameter for the coalfield flame range of development and evolution moulding, can not instruct for the control of Coal Fire Fields provides effectively.
Utility model content
The technical problem that cannot test hot stage test in order to solve existing experimental provision, the utility model provides a kind of coal spontaneous combustion high temperature temperature programming device.
Technical solution of the present utility model is:
Coal spontaneous combustion high temperature temperature programming device, its special character is: comprise body of heater, tank body, temperature measurement component and temperature control panel,
The top of body of heater is provided with bell, body of heater and bell are split type, bell is provided with the first through hole, the first through hole is provided with the plug for sealing the first through hole, in the time that bell covers above body of heater, and body of heater and a burner hearth of bell composition, burner hearth arranges carbon steel layer outward, carbon steel layer arranges stainless steel layer outward, between burner hearth and carbon steel layer, the first gap is set, and the second gap is set between carbon steel layer and stainless steel layer;
Tank body is positioned at burner hearth, and tank body is provided with cover, and tank body is connected with cover is airtight, and the bottom of tank body is provided with air inlet pipe, is provided with escape pipe on cover, and one end of air inlet pipe and escape pipe is all connected with tank body, the other end all passes from the first through hole;
The sidewall of body of heater and the bottom of body of heater are provided with heating unit, on the sidewall of body of heater, be provided with the temperature measurement component of temperature in monitoring burner hearth, temperature measurement component comprises temperature measuring unit and the outer temperature measuring unit of tank body in tank body, in tank body, temperature measuring unit is for measuring the temperature in tank body, and heating unit is all connected with temperature control panel with temperature measurement component.
This device also comprises support body, is fixed with lift and the motor being connected with lift on support body, and the sidewall of described body of heater is fixed on lift, and bell is fixed on support body.
On above-mentioned tank body, be provided with the second through hole, in tank body, temperature measuring unit enters in tank body through the second through hole, and in tank body, the quantity of temperature measuring unit and the quantity of tank body equate.
Above-mentioned the first gap is vacuum layer, heating unit is electric furnace heating wire, and in tank body, the outer temperature measuring unit of temperature measuring unit and tank body is single platinum rhodium thermocouple, on the burner hearth of bottom of furnace body, is provided with refractory brick, the electric furnace heating wire of sidewall of the furnace body is embedded on burner hearth, and the electric furnace heating wire of bottom of furnace body is embedded on refractory brick.
Above-mentioned body of heater be shaped as cuboid, comprise two short sidewalls and two long sidewalls, on two short sidewalls, be provided with the outer temperature measuring unit of described tank body, in tank body, temperature measuring unit is positioned on long sidewall.
Above-mentioned tank body be shaped as cylinder, the second through hole is positioned at 1/2 eminence of tank body, in tank body, installation site and second through hole of temperature measuring unit are contour, tank body outward temperature measuring unit is positioned at the center of short sidewall.
Above-mentioned air inlet pipe and escape pipe are carbon steel wireway, and burner hearth is ceramic fibre burner hearth, and tank body is high temperature resistant carbon silicon materials tank body, between tank body and cover, is connected by flange is airtight.
The quantity of above-mentioned the first through hole is 6, the first through hole two row that distribute on bell, 3 of every row, the long parallel sidewalls of every row and body of heater, tank body comprises 6, and tank body is separately positioned on the below of the first through hole, and the air inlet pipe of each tank body and escape pipe all pass from one of them first through hole, on two long sidewalls, be respectively arranged with temperature measuring unit in 3 tank bodies, the outer temperature measuring unit of a tank body is set respectively on two short sidewalls;
On described temperature control panel, be provided with 8 temperature control instruments, temperature measuring unit and the outer temperature measuring unit of tank body and described temperature control instrument corresponding being connected one by one in described tank body.
Advantage of the present utility model:
By adopting exotic material, design this device, the temperature of coal spontaneous combustion temperature programming experiment can be brought up to 1000 ℃, reflect more truly the response situation under coal spontaneous combustion hot conditions.
And this device, by adopting Motorized lift device, makes operation more simple, convenient.The temperature control of this device, also from existing artificial setting, changes temperature automatic detecting and artificial setting into, makes the control of furnace atmosphere temperature more accurate.By this experimental provision, coal sample is carried out to high temperature temperature programming, set up relevant coal spontaneous combustion model, the control that can be Coal Fire Fields provides good guidance.
Accompanying drawing explanation
Fig. 1 is the utility model coal spontaneous combustion high temperature temperature programming shelf jar body structure schematic diagram;
Fig. 2 is the utility model coal spontaneous combustion high temperature temperature programming device body of heater front view;
Fig. 3 is the utility model coal spontaneous combustion high temperature temperature programming device body of heater top view;
Fig. 4 is the top view of the utility model coal spontaneous combustion high temperature temperature programming device;
Fig. 5 is the front view of the utility model coal spontaneous combustion high temperature temperature programming device.
Reference numeral:
1-bell; 2-tank body; 3-the first through hole; 4-burner hearth; 5-carbon steel layer; 6-the first gap; 7-stainless steel layer; 8-the second gap; 9-air inlet pipe; 10-heating unit; Temperature measuring unit in 11-tank body; The outer temperature measuring unit of 12-tank body; 13-lift; 14-motor; 15-support body; 16-escape pipe.
The specific embodiment
The coal spontaneous combustion high temperature temperature programming device that the utility model provides, comprises body of heater, tank body 2, support body 15, temperature measurement component, heating unit 10 and temperature control panel.
Body of heater of the present utility model adopts only puies forward formula unfolding mode, referring to Fig. 2, above body of heater, be provided with bell 1, body of heater and bell are split type, bell is provided with the first through hole 3, the first through hole is provided with the plug for sealing the first through hole, the first through hole in a tubular form, the upper end of tubulose the first through hole is higher than the upper surface of bell, in the time that bell covers above body of heater, body of heater and a burner hearth 4 of bell composition, burner hearth is ceramic fibre burner hearth, burner hearth arranges carbon steel layer 5 outward, carbon steel layer arranges stainless steel layer 7 outward, in order to guarantee heat insulation effect of the present utility model, between burner hearth and carbon steel layer, be provided with the first gap 6, between carbon steel layer and stainless steel layer, be provided with the second gap 8, body of heater of the present utility model is made by welding manner.
Tank body is positioned at burner hearth, the tank body that tank body can adopt high temperature resistant carbon silicon materials to make, and tank body is provided with cover, and tank body is connected by screw thread is airtight with cover, between tank body and cover, specifically can be connected by flange is airtight.Referring to Fig. 1, the bottom of tank body is provided with air inlet pipe 9, is provided with escape pipe 16 on cover, and air inlet pipe and escape pipe are carbon steel wireway, and one end of air inlet pipe and escape pipe is all connected with tank body, the other end all passes from the first through hole.
As Fig. 2 and Fig. 3, the sidewall of body of heater and the bottom of body of heater are provided with heating unit 10, on the sidewall of body of heater, be provided with the temperature measurement component of temperature in monitoring burner hearth, temperature measurement component comprises temperature measuring unit 11 and the outer temperature measuring unit 12 of tank body in tank body, in tank body, temperature measuring unit is for measuring the temperature in tank body, heating unit is all connected with temperature control panel by wire with temperature measurement component, wherein, the second gap can be used as wire interlayer, connect the wire of heating unit and temperature control panel, and the wire that connects temperature measurement component and temperature control panel can be passed through by the second gap, wherein, on tank body, be provided with the second through hole, in tank body, temperature measuring unit enters in tank body through the second through hole, in tank body, the quantity of temperature measuring unit and the quantity of tank body equate.
As Fig. 4 and Fig. 5, on support body 15, be fixed with lift 13 and the motor 14 being connected with lift, the sidewall of body of heater is fixed on lift, and bell is fixed on support body.
The shape of body of heater can be cuboid, comprises two short sidewalls and two long sidewalls, is provided with the outer temperature measuring unit of tank body on two short sidewalls, and in tank body, temperature measuring unit is positioned on long sidewall.The first gap is vacuum layer, heating unit is electric furnace heating wire, in tank body, the outer temperature measuring unit of temperature measuring unit and tank body is single platinum rhodium thermocouple, on the burner hearth of bottom of furnace body, be provided with refractory brick, improve the compressive property of body of heater, the electric furnace heating wire of sidewall of the furnace body is embedded on burner hearth, and the electric furnace heating wire of bottom of furnace body is embedded on refractory brick.
The shape of tank body can be cylinder, and the second through hole is positioned at 1/2 eminence of tank body, and in tank body, installation site and second through hole of temperature measuring unit are contour, is convenient to measure the temperature of tank body.The outer temperature measuring unit of tank body is positioned at the center of short sidewall.
The quantity of the utility model the first through hole can arrange 6, the first through hole two row that distribute on bell, 3 of every row, the long parallel sidewalls of every row and body of heater, tank body comprises 6, tank body is separately positioned on the below of the first through hole, and the air inlet pipe of each tank body and escape pipe all pass from one of them first through hole, is respectively arranged with temperature measuring unit in 3 tank bodies on two long sidewalls.
Correspondingly, on temperature control panel, be provided with 8 temperature control instruments, temperature measuring unit and the outer temperature measuring unit of tank body and described temperature control instrument corresponding being connected one by one in described tank body.
Specific embodiment
At bell, the first through hole that 6 diameters are 30mm is set, and adopt out helicitic texture, the lower end of escape pipe is light face straight tube, burner hearth is ceramic fibre burner hearth, size of burner hearth is long 650mm × wide 450mm × high 400mm, body of heater apparent size is: long 950mm × wide 750mm × high 800mm, support height is 200mm.
Tank body, totally 6, it is shaped as cylinder, material is high temperature resistant carbon silicon materials, and cover is arranged at tank body top, and cover and tank body are fixed into a confined space by available nut.Be installed into tracheae in tank body side bottom, escape pipe is installed on seal cover, the air inlet pipe of each tank body and escape pipe all can extend to outside body of heater by the first through hole on bell, in order to gas collecting with to air feed in tank body.
In the outer temperature measuring unit of tank, cover has sealing shroud, and the outer temperature measuring unit of tank selects soft material wire to be connected with temperature control panel, and the programming rate of electric furnace heating wire is 1-20 ℃/min, and temperature stability is ± 1 ℃.Temperature control panel, is made up of 8 temperature control instruments, power switch and thermal lights.Temperature is by SCR control, transformer regulating, and 30 sections of programmables, pid parameter self-setting function, can realize manual/auto noiseless handoff functionality, and overtemperature alarm function has temperature-compensating and temperature correction function.Temperature control instrument has password setting function, setting parameter cipher control.Display window content comprises measures temperature and 4 liquid crystal displays of design temperature.
On support body, be fixed with lift and motor, be also fixed with the compositions such as shaft coupling, steering base, power transmission shaft, guide pillar, stop.Motor connects steering base by shaft coupling, and steering base connects lift by power transmission shaft.Lift is arranged on body of heater two middle side parts, and guide pillar is arranged on the bottom corner location of body of heater.Body of heater can be realized opening and closing function by lift, and in descending operation process, by the extreme position of stop control body of heater lifting, prevents device damage.
Utilize the method for testing of this coal spontaneous combustion high temperature temperature programming device:
1] 6 kinds of coal samples broken, that sieved are respectively charged in 6 tank bodies, then by airtight to tank body and cover;
2] open the power supply of motor, operation lift, body of heater slow decreasing is arrived minimum, separate with bell, respectively 6 tank bodies that install coal sample are fixed in the burner hearth of the first through hole below, remove the plug of the first through hole, the air inlet pipe of each tank body and escape pipe are passed from the first through hole of tank body top bell, and air inlet pipe is connected with air supply unit, temperature measuring unit in 6 tank bodies on long sidewall is inserted into respectively in 6 tank bodies by the second through hole of each tank body;
3] operation lift, is elevated to top by body of heater, mutually closely sealed with bell;
4] operation control panel, set concrete heating schedule by temperature control instrument, adopt automatic temperature-adjusting routine inspection mode or manually set experimental temperature, control electric furnace heating wire and regulate furnace gas temperature, make temperature in stove be heated to 50-1000 ℃ from room temperature, in order objectively to reflect more comprehensively the change law of gas of coal from low thermophase to hot stage, preferably make temperature in stove be heated to 200-1000 ℃ from room temperature;
5] at ten multiple temperature spots of each tank body coal sample, gather gas from the escape pipe of each tank body, in gas chromatographicanalyzer, detect gas component.Finally assign to judge the combustion case of coal sample by each temperature spot gas group, and set up relevant coal spontaneous combustion model, instruct the prevention and cure project of Coal Fire Fields.
Claims (8)
1. coal spontaneous combustion high temperature temperature programming device, is characterized in that: comprise body of heater, tank body, temperature measurement component and temperature control panel;
The top of body of heater is provided with bell, body of heater and bell are split type, bell is provided with the first through hole, the first through hole is provided with the plug for sealing the first through hole, in the time that bell covers above body of heater, and body of heater and a burner hearth of bell composition, burner hearth arranges carbon steel layer outward, carbon steel layer arranges stainless steel layer outward, between burner hearth and carbon steel layer, the first gap is set, and the second gap is set between carbon steel layer and stainless steel layer;
Tank body is positioned at burner hearth, and tank body is provided with cover, and tank body is connected with cover is airtight, and the bottom of tank body is provided with air inlet pipe, is provided with escape pipe on cover, and one end of air inlet pipe and escape pipe is all connected with tank body, the other end all passes from the first through hole;
The sidewall of body of heater and the bottom of body of heater are provided with heating unit, on the sidewall of body of heater, be provided with the temperature measurement component of temperature in monitoring burner hearth, temperature measurement component comprises temperature measuring unit and the outer temperature measuring unit of tank body in tank body, in tank body, temperature measuring unit is for measuring the temperature in tank body, and heating unit is all connected with temperature control panel with temperature measurement component.
2. coal spontaneous combustion high temperature temperature programming device according to claim 1, is characterized in that: this device also comprises support body, is fixed with lift and the motor being connected with lift on support body, and the sidewall of described body of heater is fixed on lift, and bell is fixed on support body.
3. coal spontaneous combustion high temperature temperature programming device according to claim 2, is characterized in that: on described tank body, be provided with the second through hole, in tank body, temperature measuring unit enters in tank body through the second through hole, and in tank body, the quantity of temperature measuring unit and the quantity of tank body equate.
4. coal spontaneous combustion high temperature temperature programming device according to claim 3, it is characterized in that: described the first gap is vacuum layer, heating unit is electric furnace heating wire, in tank body, the outer temperature measuring unit of temperature measuring unit and tank body is single platinum rhodium thermocouple, on the burner hearth of bottom of furnace body, be provided with refractory brick, the electric furnace heating wire of sidewall of the furnace body is embedded on burner hearth, and the electric furnace heating wire of bottom of furnace body is embedded on refractory brick.
5. coal spontaneous combustion high temperature temperature programming device according to claim 4, it is characterized in that: described body of heater be shaped as cuboid, comprise two short sidewalls and two long sidewalls, be provided with the outer temperature measuring unit of described tank body on two short sidewalls, in tank body, temperature measuring unit is positioned on long sidewall.
6. coal spontaneous combustion high temperature temperature programming device according to claim 5, it is characterized in that: described tank body be shaped as cylinder, the second through hole is positioned at 1/2 eminence of tank body, and in tank body, installation site and second through hole of temperature measuring unit are contour, and the outer temperature measuring unit of tank body is positioned at the center of short sidewall.
7. coal spontaneous combustion high temperature temperature programming device according to claim 6, it is characterized in that: described air inlet pipe and escape pipe are carbon steel wireway, burner hearth is ceramic fibre burner hearth, and tank body is high temperature resistant carbon silicon materials tank body, between tank body and cover, is connected by flange is airtight.
8. coal spontaneous combustion high temperature temperature programming device according to claim 7, it is characterized in that: the quantity of described the first through hole is 6, the first through hole two row that distribute on bell, 3 of every row, the long parallel sidewalls of every row and body of heater, tank body comprises 6, tank body is separately positioned on the below of the first through hole, the air inlet pipe of each tank body and escape pipe all pass from one of them first through hole, on two long sidewalls, be respectively arranged with temperature measuring unit in 3 tank bodies, the outer temperature measuring unit of a tank body is set respectively on two short sidewalls;
On described temperature control panel, be provided with 8 temperature control instruments, temperature measuring unit and the outer temperature measuring unit of tank body and described temperature control instrument corresponding being connected one by one in described tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320783519.2U CN203642690U (en) | 2013-11-29 | 2013-11-29 | Coal spontaneous combustion high-temperature programming device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320783519.2U CN203642690U (en) | 2013-11-29 | 2013-11-29 | Coal spontaneous combustion high-temperature programming device |
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| CN203642690U true CN203642690U (en) | 2014-06-11 |
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| CN201320783519.2U Withdrawn - After Issue CN203642690U (en) | 2013-11-29 | 2013-11-29 | Coal spontaneous combustion high-temperature programming device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644732A (en) * | 2013-11-29 | 2014-03-19 | 西安科技大学 | Coal spontaneous combustion high-temperature program heating device and testing method using same |
| CN105806890A (en) * | 2016-03-26 | 2016-07-27 | 河南理工大学 | Coal spontaneous combustion characteristic parameter measuring device based on load pressurizing mode |
-
2013
- 2013-11-29 CN CN201320783519.2U patent/CN203642690U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644732A (en) * | 2013-11-29 | 2014-03-19 | 西安科技大学 | Coal spontaneous combustion high-temperature program heating device and testing method using same |
| CN105806890A (en) * | 2016-03-26 | 2016-07-27 | 河南理工大学 | Coal spontaneous combustion characteristic parameter measuring device based on load pressurizing mode |
| CN105806890B (en) * | 2016-03-26 | 2018-05-04 | 河南理工大学 | Characteristic Parameters of Coal Spontaneous Combustion measurement device based on load pressuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140611 Effective date of abandoning: 20150429 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140611 Effective date of abandoning: 20150429 |