CN203938639U - A kind of inverted steps formula charring furnace that has wall-hanging coal gas coil device - Google Patents
A kind of inverted steps formula charring furnace that has wall-hanging coal gas coil device Download PDFInfo
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- CN203938639U CN203938639U CN201420378842.6U CN201420378842U CN203938639U CN 203938639 U CN203938639 U CN 203938639U CN 201420378842 U CN201420378842 U CN 201420378842U CN 203938639 U CN203938639 U CN 203938639U
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Abstract
The utility model relates to a kind of vertical internally-heated hollow charring furnace that has wall-hanging coal gas coil device, mainly contains furnace wall, combustion chamber, combustion chamber fire hole, coking chamber, gas skirt, it is characterized in that; Embed heat-resisting heating coil at coking chamber two wall refractory brick bodies of wall, this heat-resisting heating coil is connected with its second heater.The utility model makes full use of the heat energy of coking chamber high temperature section self, be collected to after gas main being embedded in mobile heated by gas in the heat-resisting heating coil in coking chamber both sides, enter second heater again, finally send into combustion chamber, through combustion chamber, fire hole enters coking chamber.The utility model can be by heated by gas mobile in coil pipe between 530-660 DEG C, ensured that little beans continues the demand of steady pyrolysis temperature.
Description
Technical field
The utility model relates to charring furnace technology, specifically the furnace binding technology of semicoke charring furnace.
Technical background
China's northern Shensi Shenmu County rich coal resources, superior in quality, semicoke manufacturer is numerous, surrounding area, semicoke product-feed northern Shensi.
Semicoke is the good reductive agent during furnace of calcium carbide, iron alloy are produced, and is one of important source material of calcium carbide, iron alloy production.During semicoke is produced, the coal gas amount of association is very large, contains more coal tar in coal gas.
Coal tar is the valuable byproduct during semicoke is produced, and hydrogenation of tar can be made into diesel oil and fuel wet goods.But the caloric power of gas that traditional internal heat type charring furnace produces in producing is lower, can only use as power fuel--using value is lower.
" inverted steps vertical internal thermal hollow carbonization furnace " (patent No.: ZL 2,009 1 0254409.5) is the applicant's patented technology.This charring furnace can be applied little beans and do raw materials for production, its mainly by coking chamber 4., combustion chamber 2., combustion chamber fire hole 3., 5. gas skirt form.Little beans is entered in stove by furnace roof, enter granule coal in stove through preheating, move to coking chamber high temperature section from top to bottom 9., 2. coking chamber high temperature section is provided with combustion chamber, 4. 3. the mixed gas of coal gas and air enter coking chamber through combustion chamber fire hole, heating, by coking chamber little beans 4., makes its pyrolysis, output solid product semicoke and byproduct coal gas and tar.
The constructional feature of inverted steps vertical internal thermal hollow carbonization furnace is: " coking chamber is up-narrow and down-wide shape and structure, holds, for multistage inverted ladder-shaped on charing locular wall." charring furnace structure so, make to enter coking chamber little beans 4. more open, be easy to high-temperature gas and penetrate whole coal seam, little beans is fully contacted with high-temperature gas, heat smoothly dry distillation charring, stop green coke appearance.And 3. combustion chamber fire hole is hidden under the step of inverted steps brick, can not stopped up by granule coal, make inflammable gas enter coking chamber passage 4. unimpeded.This patent history that small-particle coal can not use in vertical internal thermal hollow carbonization furnace that is through with, has solved small-particle coal ventilation property in coking chamber poor, the susceptible to plugging problem of fire hole preferably; Receive increasing both production and income, the good result of energy-saving and emission-reduction.The production practice of several years have confirmed the clear superiority of this charring furnace, and are extensively adopted by the area such as locality and Xinjiang.But a fly in the ointment is: this charring furnace belongs to internal heat type charring furnace, and the coal gas of output can only be used for power fuel and use, and can not be used for deep processing and become the industrial chemicals that cost performance is higher.
Summary of the invention
The purpose of this utility model is, overcomes the deficiencies in the prior art, and improved novel charring furnace can produce the gas by-products of high performance-price ratio.
the utility model is achieved in that
This charring furnace is mainly made up of coking chamber, combustion chamber, combustion chamber fire hole, gas skirt; Coking chamber is up-narrow and down-wide shape and structure, holds, for multistage inverted ladder-shaped on charing locular wall; It is characterized in that: be provided with heat-resisting heating coil and connected second heater, heat-resisting heating coil is embedded on the inwall of coking chamber both sides, and heat-resisting heating coil is connected with second heater, and second heater is positioned at outside body of heater.
Described heat-resisting heating coil forms by organizing U-shaped heat-resistance stainless steel pipe more.
Described second heater is made up of many heat-resistance stainless steel pipes, and steel pipe external parcel is high temperature resistant, the mica paper of insulation, outer winding nichrome wire.After energising, the gas temperature in heating stainless steel tube reaches 530-660 DEG C.
the principle of work of this inverted steps formula charring furnace and flow process, step are as follows:
1) from the coal gas of furnace roof gas skirt sucking-off, first enter gas cleaning system, make coal gas and tar separation, tar stores, and coal gas is further processed;
2) coal gas after gas cleaning system purifies, a part is delivered to coal gas user, and another part enters gas fan, and gas fan is to gas pressing-become malleation by negative pressure;
3) coal gas of above-mentioned malleation, the gate valve of installing on pipeline carries out adjust flux, then enters gas main, and gas temperature is now between 70-80 DEG C;
4) coal gas entering after gas main enters respectively each heat-resisting heating coil, heat-resisting heating coil in 6. mobile coal gas by the heat of 500-600 in coking chamber DEG C between 480-580 DEG C;
5) each heat-resisting heating coil 6. in heated coal gas be collected to insulation house steward after, enter second heater.
the beneficial effects of the utility model--before and after charring furnace improves, the contrast of gas quality situation is as follows:
1) charring furnace before improvement.The inflammable gas that enters coking chamber by combustion chamber fire hole is the mixed gas of coal gas and air, the coal gas that catch fire pyrolysis granule coal and produce in coking chamber, its result of laboratory test: hydrogen accounts for 23.9%, carbon monoxide accounts for 15.4%, methane accounts for 7.7%, and carbonic acid gas accounts for 9.5%, and nitrogen accounts for 40.6%, other is minimum gas, calorific value 1850 kilocalories.Can only use as power fuel.
2) charring furnace of the utility model.What enter coking chamber by combustion chamber fire hole is the coal gas of high temperature of 530-660 DEG C, can fully meet the temperature requirement of the little beans of low temperature pyrogenation in coking chamber.From presentation coking chamber structure, it is still the internal heat type type of furnace, but the little beans of pyrolysis is coal gas of high temperature, and do not add air, so in the coal gas that charring furnace of the present invention produces, the content of nitrogen can reduce greatly, and carbon monoxide and methane gas can increase to some extent, thereby improve the utility value of coal gas.
Brief description of the drawings
The integral construction schematic diagram of Fig. 1, the present embodiment charring furnace;
Fig. 2, coal gas coil device shape, the structure situation schematic diagram in charring furnace;
The principle of work schematic diagram of Fig. 3, the present embodiment heating unit.
in figure,the 1st, furnace wall; The 2nd, combustion chamber; The 3rd, combustion chamber fire hole; The 4th, coking chamber; The 5th, gas skirt; The 6th, heat-resisting heating coil; The 7th, gas main; The 8th, second heater; The 9th, coking chamber high temperature section; The 10th, insulation house steward; The 11st, arm; The 12nd, gas cleaning system; The 13rd, coal gas user; The 14th, gas fan; The 15th, gate valve.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
embodiment1. one kind has the inverted steps formula charring furnace of wall-hanging coal gas coil device
The shape of this charring furnace, structure are as shown in Figure 1.Mainly formed by coking chamber 4, combustion chamber 2, combustion chamber fire hole 3, gas skirt 5.Coking chamber 4 is up-narrow and down-wide shape and structure, holds, for multistage inverted ladder-shaped on charing locular wall.On the middle and lower part inwall of each coking chamber 4 both sides, embed respectively one group of heat-resisting heating coil 6, heat-resisting heating coil 6 is connected with second heater 8, and second heater 8 is arranged on body of heater outside.
Taking 100,000 tons of charring furnaces as example: have 10 coking chambers 4, each coking chamber both sides respectively have an inwall to embed 6,10 coking chambers of two groups of heat-resisting heating coils can embed 20 groups of heat-resisting heating coils 6, and heating surface area is large.Increase second heater the coal gas of high temperature temperature of 480-580 DEG C is improved to 50-80 DEG C again, reach between 530-660 DEG C, can keep the temperature of the little beans of pyrolysis of coking chamber to remain between 500-600 DEG C, ensure that little beans continues pyrolysis temperature stably.
fig. 2show position, shape, the structure of heated by gas coil device in charring furnace
Heating coil is made up of 108 × 8 stainless steel heat-resistant pipes, is combined by Multi-layer U-shape bend pipe.One end enters 70-80 DEG C of coal gas, and the other end reaches 480-580 DEG C of coal gas after discharging heating.
Second heater is made up of many stainless steel heat-resistant pipes equally, pipe outsourcing mica paper, and by organizing electric-heating-wire-heating, temperature is opened control by nichrome wire standard-sized sheet or part more.Second heater is selected electrically heated, is that amplitude is little because temperature only need improve between 50-80 DEG C, and electricity consumption is less, environmental protection.Second heater is located at outside stove.
fig. 3show the principle of work of the present embodiment heating unit
From the 5. coal gas of sucking-off of furnace roof gas skirt, first enter gas cleaning system, make coal gas and tar separation.Tar stores, and the coal gas part after purification is delivered to coal gas user, and another part enters gas fan, is negative pressure section before this.Coal gas through gas fan pressurization is malleation.The gate valve adjust flux of installing on pipeline, enter gas main 7. gas temperature be now between 70-80 DEG C.6. the coal gas entering after gas main enter respectively each heat-resisting heating coil, in heating coil mobile coal gas by coking chamber 4. in the heat of 500-600 DEG C between 480-580 DEG C.The heated coal gas of each heating coil be collected to insulation house steward 10. after, enter second heater 8., second-heating coil pipe is by mica paper, nichrome wire forms.The coal gas of high temperature that enters second heater is reheated after 50-80 DEG C, and gas temperature reaches between 530-660 DEG C, finally enter insulation house steward 10., arm, enter respectively each combustion chamber 2., through combustion chamber fire hole 3., enter each coking chamber 4..Utilize coal gas of high temperature to continue the indoor little beans of pyrolysis charring, make its output solids semicoke, discharged out of the furnace by charring furnace bottom.5. byproduct coal gas and tar steam enter gas skirt from bottom to top, start above-mentioned working cycle of going round and beginning again.
Claims (4)
1. have an inverted steps formula charring furnace for wall-hanging coal gas coil device, this charring furnace is mainly made up of coking chamber (4), combustion chamber (2), combustion chamber fire hole (3), gas skirt (5); Coking chamber is up-narrow and down-wide shape and structure, holds, for multistage inverted ladder-shaped on charing locular wall; It is characterized in that: have heat-resisting heating coil (6) and connected second heater (8), heat-resisting heating coil (6) is embedded on the inwall of coking chamber both sides, heat-resisting heating coil (6) is connected with second heater (8), and second heater (8) is positioned at outside body of heater.
2. inverted steps formula charring furnace according to claim 1, is characterized in that, heat-resisting heating coil (6) forms by organizing U-shaped heat-resistance stainless steel pipe more.
3. inverted steps formula charring furnace according to claim 1, is characterized in that, second heater (8) is made up of many heat-resistance stainless steel pipes, and steel pipe external parcel is high temperature resistant, the mica paper of insulation, outer winding nichrome wire.
4. inverted steps formula charring furnace according to claim 1, is characterized in that: heat-resisting heating coil (6) is to combine by organizing U-shaped heat-resistance stainless steel pipe more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420378842.6U CN203938639U (en) | 2014-07-10 | 2014-07-10 | A kind of inverted steps formula charring furnace that has wall-hanging coal gas coil device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420378842.6U CN203938639U (en) | 2014-07-10 | 2014-07-10 | A kind of inverted steps formula charring furnace that has wall-hanging coal gas coil device |
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| Publication Number | Publication Date |
|---|---|
| CN203938639U true CN203938639U (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420378842.6U Expired - Fee Related CN203938639U (en) | 2014-07-10 | 2014-07-10 | A kind of inverted steps formula charring furnace that has wall-hanging coal gas coil device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105295960A (en) * | 2014-07-10 | 2016-02-03 | *** | Inverted stepped carbonization furnace with wall-mounted gas coil pipe devices |
-
2014
- 2014-07-10 CN CN201420378842.6U patent/CN203938639U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105295960A (en) * | 2014-07-10 | 2016-02-03 | *** | Inverted stepped carbonization furnace with wall-mounted gas coil pipe devices |
| CN105295960B (en) * | 2014-07-10 | 2019-06-18 | 江西碧林实业有限公司 | A kind of charing method of retort and the carbonization device with the retort |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20160710 |