CN208238510U - A kind of grain heat-drying coal-fired hot-blast stove - Google Patents
A kind of grain heat-drying coal-fired hot-blast stove Download PDFInfo
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- CN208238510U CN208238510U CN201820407132.XU CN201820407132U CN208238510U CN 208238510 U CN208238510 U CN 208238510U CN 201820407132 U CN201820407132 U CN 201820407132U CN 208238510 U CN208238510 U CN 208238510U
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Abstract
The utility model discloses a kind of grain heat-drying coal-fired hot-blast stove, belong to grain drying device technical field, including combustion chamber, the front end of the combustion chamber is provided with coaling machine, the combustion chamber lower part is provided with traveling-grate stoker, the combustion chamber rear portion is provided with expansion chamber, the combustion chamber and the expansion chamber are arranged with slag remover, the expansion chamber rear portion is provided with vertical gas flue, heat exchanger is provided with above the combustion chamber, the gas flue is connected to the heat exchange, the antetheca forward end of the combustion chamber is bent to form face arch, rear arch is fixedly installed on the rear wall of the combustion chamber, the exit of the combustion chamber is provided with firebreak.The hot wind of the utility model production has the characteristics that low temperature, flow velocity are high, flow is big, meets the hot wind demand characteristics of multistage foodstuff drying device.
Description
Technical field
The utility model relates to grain drying device technical field, in particular to a kind of grain heat-drying coal-fired hot-blast stove.
Background technique
Grain is human lives' necessity, and various countries all pay much attention to grain-production deposit, but before receiving grain and putting in storage, by
Moldy metamorphism is not dried immediately in weather or the big portion's grain of other reasons, not only influences grain quality and also exists to human health
It is potentially hazardous.The grain moisture content newly gathered in is generally 17~32% or so, and the safe moisture of grain storage is 14% or so, therefore such as
Fruit, which needs safety stock grain that must reach safe moisture to grain precipitation, to be stored.If not reaching safe moisture content, storing up
During product, it is easy to it is larger to form interior humidity, cause grain there is a situation where go mouldy it is rotten occur, influence the quality of grain
And the normal healthy edible of people.
Hot-blast stove is that the key equipment of heat source is provided for foodstuff drying device, and performance directly affects grain heat-drying effect, mesh
Before, the domestic hot-blast stove type for providing heat source for foodstuff drying device is more, mainly there is coal-fired hot-blast stove, warm air oil furnace, combustion gas
Hot-blast stove and combustion rice husk hot-blast stove.The applicant has applied for multistage foodstuff adustion system simultaneously, and wherein low temperature drying section needs low
Temperature, high flow rate, big flow hot wind, existing air-heater is not able to satisfy the demand.Also, existing Combustion of Hot Air Furnace cell structure
And its working method is primarily present following problems: carry various dust coal slag granules in flue gas, easily blocking heat exchanger tube, flare
Upper string.The above problem easily causes following disastrous effect: heat exchanger tube is because blocking heat exchange area is reduced, and the thermal efficiency is low, hot-blast stove undercapacity；
Heat exchanger tube is burnt because flue gas carries lime-ash blocking.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of grain heat-drying coal-fired hot-blast stove, the coal fuel heating
Wind furnace can provide low temperature, high flow rate, big flow hot wind, meet multistage foodstuff adustion system demand.
The technical solution of the utility model is achieved in that
A kind of grain heat-drying coal-fired hot-blast stove, including combustion chamber, the front end of the combustion chamber is provided with coaling machine, described
Combustion chamber lower part is provided with traveling-grate stoker, and the combustion chamber rear portion is provided with expansion chamber, under the combustion chamber and the expansion chamber
It is provided with slag remover, the expansion chamber rear portion is provided with vertical gas flue, is provided with heat exchanger above the combustion chamber, described
Gas flue is connected to the heat exchange, and the antetheca forward end of the combustion chamber is bent to form face arch, is consolidated on the rear wall of the combustion chamber
Surely it is provided with rear arch, the exit of the combustion chamber is provided with firebreak.
Wherein it is preferred to the coaling machine lower end is provided with the coal flashboard for adjusting coal thickness, the coal flashboard it is upper
End is provided with displacement sensor.
Wherein it is preferred to which angle formed by the face arch and vertical combustion chamber antetheca is 40~50 °.
Wherein it is preferred to which the rear arch is made of sequentially connected first horizontal portion, bending part, the second horizontal part.
Wherein it is preferred to 15~30 ° of angle formed by the bending part and first horizontal portion and the second horizontal part.
Wherein it is preferred to be provided with air flow channel and flue gas flow channel in the heat exchanger.
Wherein it is preferred to which the air flow channel is three process air flow channels, the flue gas flow channel is two process air streams
Road.
Wherein it is preferred to which the sectional area of the flue gas flow channel first pass is twice of second procedure sectional area.
The utility model the utility model has the advantages that
The grain heat-drying hot-blast stove hot wind produced of the utility model has the characteristics that low temperature, flow velocity are high, flow is big,
Meet the hot wind demand characteristics of multistage foodstuff drying device.And be transformed to chamber structure, it can be being carried in flue gas
The barrier of dust coal slag granules, so that its is fallen sedimentation before entering heat exchanger, firewall is set, prevents from altering outside flare, is guaranteed hot
Air duct in wind furnace, conveys enough flue gases, removes impurity, and it is good to reach combustion heat-exchange effect, purpose with long service life.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model grain heat-drying coal-fired hot-blast stove.
In figure, 1. combustion chambers, 2. coaling machines, 3. traveling-grate stokers, 4. expansion chambers, 5. gas flues, 6. heat exchangers, 6-1. first
Process, 6-2. second procedure, 7. slag removers, 8. face arch, 9. rear arches, 9-1. first horizontal portion, 9-2. bending part, the second water of 9-3.
Flat portion, 10. firebreaks, 11. coal flashboards
Specific embodiment
The technical scheme in the utility model embodiment is clearly and completely described below, it is clear that described reality
Applying example is only the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this reality
With novel protected range.
As shown in Figure 1, the present embodiment provides a kind of grain heat-drying coal-fired hot-blast stove, including combustion chamber 1, combustion chamber 1
Front end is provided with coaling machine 2, and 1 lower part of combustion chamber is provided with traveling-grate stoker 3, and 1 rear portion of combustion chamber is provided with expansion chamber 4, combustion chamber 1
It is arranged with slag remover 7 with expansion chamber 4,4 rear portion of expansion chamber is provided with vertical gas flue 5, is provided with heat exchange above combustion chamber 1
Device 6, gas flue 5 are connected to heat exchange, and the antetheca forward end of combustion chamber 1 is bent to form face arch 8, and fixation is set on the rear wall of combustion chamber 1
It is equipped with rear arch 9, the exit of combustion chamber 1 is provided with firebreak 10.Firebreak 10 is set, prevents from altering outside flare, expansion chamber 4 can be with
The dust coal slag granules barrier carried in flue gas, make its sedimentation of falling before entering heat exchanger 6.Since slag remover 7 is along chain
Fire grate 3, expansion chamber 4 are arranged, make the hot-blast stove of the utility model that can exclude traveling-grate stoker 3 simultaneously using a set of slag remover 7, sink
The lime-ash that room 4 is discharged drops.
Wherein, 2 lower end of coaling machine is provided with the coal flashboard 11 for adjusting coal thickness, and the upper end of coal flashboard 11 is provided with position
Displacement sensor.Since the temperature of coal flashboard 11 is higher, which has stainless steel wire rope, and displacement sensor is fixed on combustion
On the outer wall for burning room 1, stainless steel wire rope one end is fixedly connected with 11 upper end of coal flashboard, the other end and the fixed company of displacement sensor
It connects.The displacement sensor structure is simple, easy for installation, reliable performance, avoids influence of the high temperature to displacement sensor performance.
Wherein, face arch 8 and angle formed by vertical 1 antetheca of combustion chamber are 45 °.In the utility model, which can be
40~50 °.Rear arch 9 is made of sequentially connected first horizontal portion 9-1, bending part 9-2, the second horizontal part 9-3.Bending part 9-2
With 20 ° of angle formed by first horizontal portion 9-1 and the second horizontal part 9-3.The equal of heat in combustion chamber 1 may be implemented in the structure
Even reflection makes to generate α shape flame in combustion chamber 1.
Wherein, air flow channel and flue gas flow channel are provided in heat exchanger.Air flow channel is three process air flow channels, flue gas stream
Road is two process air flow channels.The sectional area of flue gas flow channel first pass 6-1 is twice of second procedure 6-2 sectional area.Due to
Flue gas flow channel is two process flue gas flow channels, so that high-temperature flue gas is sufficiently exchanged heat with air, increases heat exchange area, improves heat exchange
Efficiency；The technology of sectional area due to the sectional area of flue gas flow channel first pass 6-1 in heat exchanger 6 greater than second procedure 6-2 is special
Sign twice of second procedure 6-2 sectional area (sectional area of first pass 6-1 be), keeps high-temperature flue gas low in first pass 6-1
Speed stream flowing, exchanges heat conducive to the air in the flue gas and air flow channel of high temperature, high speed is enable to pass through the air of air flow channel
It is heated to form hot wind, further improves the supply amount of hot wind.
Working principle: fire grate is driven by fire grate speed reducer, moves fire grate constantly from the front to the back, coal by coaling machine 2 mention to
In coal scuttle, corresponding thickness is adjusted by coal flashboard 11, it is evenly laid out on fire grate, with fire grate movement constantly forward, receive combustion
Hyperthermia radiation in room 1 is burnt, the stages such as preheating, drying, kindling are sequentially completed, until after-flame, last clinker are fallen into slag remover 7,
It is discharged out of the furnace by slag remover 7；High-temperature flue gas caused by burning enters heat exchanger 6 using flue after the sedimentation of expansion chamber 4, with
Cold air heat exchange, the low-temperature flue gas after exchange are discharged into atmosphere through chimney by air-introduced machine, and cold air becomes high temperature sky after heat exchange
Gas completes heat transfer process.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (8)
1. a kind of grain heat-drying coal-fired hot-blast stove, it is characterised in that: including combustion chamber, the front end of the combustion chamber is provided with
Coal machine, the combustion chamber lower part are provided with traveling-grate stoker, and the combustion chamber rear portion is provided with expansion chamber, the combustion chamber and described
Expansion chamber is arranged with slag remover, and the expansion chamber rear portion is provided with vertical gas flue, is provided with and changes above the combustion chamber
Hot device, the gas flue are connected to the heat exchange, and the antetheca forward end of the combustion chamber is bent to form face arch, the combustion chamber
Rear arch is fixedly installed on rear wall, the exit of the combustion chamber is provided with firebreak.
2. a kind of grain heat-drying coal-fired hot-blast stove according to claim 1, it is characterised in that: the setting of coal machine lower end
There is the coal flashboard for adjusting coal thickness, the upper end of the coal flashboard is provided with displacement sensor.
3. a kind of grain heat-drying coal-fired hot-blast stove according to claim 1, it is characterised in that: the face arch and vertical
Angle formed by the antetheca of combustion chamber is 40~50 °.
4. a kind of grain heat-drying coal-fired hot-blast stove according to claim 1, it is characterised in that: the rear arch is by successively connecting
First horizontal portion, bending part, the second horizontal part composition connect.
5. a kind of grain heat-drying coal-fired hot-blast stove according to claim 4, it is characterised in that: the bending part and first
15~30 ° of angle formed by horizontal part and the second horizontal part.
6. a kind of grain heat-drying coal-fired hot-blast stove according to claim 1, it is characterised in that: setting in the heat exchanger
There are air flow channel and flue gas flow channel.
7. a kind of grain heat-drying coal-fired hot-blast stove according to claim 6, it is characterised in that: the air flow channel is three
Process air flow channel, the flue gas flow channel are two process air flow channels.
8. a kind of grain heat-drying coal-fired hot-blast stove according to claim 7, it is characterised in that: the flue gas flow channel first
The sectional area of process is twice of second procedure sectional area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820407132.XU CN208238510U (en) | 2018-03-23 | 2018-03-23 | A kind of grain heat-drying coal-fired hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820407132.XU CN208238510U (en) | 2018-03-23 | 2018-03-23 | A kind of grain heat-drying coal-fired hot-blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208238510U true CN208238510U (en) | 2018-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820407132.XU Active CN208238510U (en) | 2018-03-23 | 2018-03-23 | A kind of grain heat-drying coal-fired hot-blast stove |
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| CN (1) | CN208238510U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899977A (en) * | 2019-04-16 | 2019-06-18 | 吉林市松花湖实业有限公司 | A kind of hot-blast stove and drying system |
| CN114251662A (en) * | 2021-12-23 | 2022-03-29 | 河南省德耀节能科技股份有限公司 | Purification ash incineration recycling system |
-
2018
- 2018-03-23 CN CN201820407132.XU patent/CN208238510U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899977A (en) * | 2019-04-16 | 2019-06-18 | 吉林市松花湖实业有限公司 | A kind of hot-blast stove and drying system |
| CN114251662A (en) * | 2021-12-23 | 2022-03-29 | 河南省德耀节能科技股份有限公司 | Purification ash incineration recycling system |
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