CN220567221U - Efficient hot-blast stove for organic fertilizer drying equipment - Google Patents

Abstract

The utility model belongs to the technical field of hot blast stoves, and discloses a high-efficiency hot blast stove for organic fertilizer drying equipment, which comprises a fixed bracket, wherein a steel shell is fixedly arranged at the top of the fixed bracket, an air inlet partition plate is fixedly connected to the inside of the steel shell and close to the bottom of the steel shell, the steel shell is divided into an upper air cavity and a lower air cavity by the air inlet partition plate, the center of the air inlet partition plate is fixedly connected with a stove liner, and the bottom of a liner body of the stove liner stretches into the lower air cavity; on the premise of providing the same heat quantity, the hot blast stove can reduce the required size, reduce the manufacturing cost, be more concise than the structure of the existing equipment, and reduce the failure rate and the maintenance cost.

Description

Efficient hot-blast stove for organic fertilizer drying equipment

Technical Field

The utility model relates to the technical field of hot blast stoves, in particular to a high-efficiency hot blast stove for organic fertilizer drying equipment.

Background

With the rapid development of society and economy and the rapid improvement of living standard of people, livestock and poultry breeding industry is vigorously developed, and the supply amount of meat, eggs, milk and other auxiliary foods is greatly increased, but the amount of livestock and poultry manure waste is also rapidly increased. In the period of extensive development, most farmers treat fecal waste by adopting modes of water flushing, composting, pit fermentation and the like, and the sewage is overflowed generally, mosquitoes breed, smell is bad, and the soil, the water body and the air are greatly influenced.

In recent years, with the importance of the nation and people on environmental protection and the improvement of the requirements on good environment, and the development of environmental protection industry technology, various organic fertilizer production equipment for treating livestock and poultry manure waste and generating economic benefits are increasingly and widely used. In the organic fertilizer production line, organic fertilizer drying equipment is indispensable for improving production efficiency and finished product quality. The organic fertilizer drying equipment is required to be provided with a hot blast stove, and the main energy sources of the organic fertilizer drying equipment include electric power, fuel gas, biomass fuel and the like. Biomass fuel stoves have taken a major role in terms of cost of use.

According to investigation, biomass fuel hot blast stoves used by organic fertilizer dryer equipment in the market at present mainly have two types, one is built by refractory bricks and fireproof cement in a construction site according to the actual condition of the site. The hot blast stove is suitable for local conditions, but has larger occupied area, requires higher professional skills of constructors, and cannot move once built. The other is a hot blast stove of a steel plate welded product. The hot blast stove has compact structure, convenient hoisting and more practical use.

However, the hot blast stove is a general principle, and is more focused on providing clean hot air for heating closed plants and greenhouses and drying grains and feeds, and adopts an indirect heating design with a combustion channel and a hot air channel which are separated, the clean hot air enters a room or equipment to be heated, and combustion flue gas is discharged into the atmosphere. However, the special properties of the organic fertilizer product are that the cleanliness and the components of the heating gas medium are not excessively high in the drying process, and the heating medium is not required to be limited to clean hot air, so that the design principle is not completely suitable for the organic fertilizer drying process, heat waste can be caused, and the fuel loss is larger.

Disclosure of Invention

The utility model aims to provide a high-efficiency hot blast stove for organic fertilizer drying equipment, which effectively solves the problems existing in the prior art.

The utility model is realized in the following way:

the utility model provides a fertilizer is high-efficient hot-blast furnace for drying equipment, includes the fixed bolster, the top fixed mounting of fixed bolster has steel shell, the inside of steel shell just is close to bottom department fixedly connected with air inlet division board, air inlet division board will steel shell separates into updraft cavity and downdraft cavity, the central fixedly connected with stove inner bag of air inlet division board, the courage body bottom of stove inner bag stretches into downdraft cavity inside, the courage body just is close to top and bottom punishment do not evenly has seted up second gas pocket and first air vent all around, steel shell's surface just is close to air inlet division board top and bottom do not have secondary air intake and primary air intake, primary air intake with primary air end and second end fixed connection of tee bend tuber pipe respectively, the third end of tee bend tuber pipe and the output fixed mounting of combustion fan, the first end and the second end department of tee bend tuber pipe all are provided with the regulation dish valve, the top of steel shell and the one end fixed mounting of passageway, the other end and the fertilizer of flue gas passageway's the input flue gas of installation of fertilizer equipment, the flue gas temperature regulating device.

In one embodiment of the utility model, the furnace liner further comprises a fire gathering cover and an aggregation bowl, wherein the fire gathering cover is welded at the top of the liner body, the aggregation bowl is welded at the top of the fire gathering cover, the periphery of the top of the aggregation bowl is welded with the periphery of the inner wall of the steel shell, and a feed inlet is arranged at one side of the outer wall of the steel shell and close to the top of the aggregation bowl.

In one embodiment of the utility model, the temperature adjusting device comprises a fan air pipe, the fan air pipe is welded on one side of the flue gas channel, a temperature probe is arranged at the position, close to the organic fertilizer drying equipment, of the flue gas channel, the fan air pipe and the horizontally arranged flue gas channel are arranged at an included angle of 30-45 degrees, and the bottom end of the fan air pipe is fixedly arranged with the output end of the temperature adjusting fan.

In one embodiment of the utility model, the bottom of the steel shell is provided with an inverted cone-shaped ash collecting hopper, and the top of the ash collecting hopper is provided with a turning plate cover.

In one embodiment of the utility model, a dredging door is arranged at one side of the peripheral outer wall of the steel shell and at the position corresponding to the bottom of the liner body.

In one embodiment of the utility model, a fire viewing window is arranged at one side of the outer wall around the steel shell and at the position corresponding to the second air hole.

In one embodiment of the utility model, the inner wall surface of the steel shell is provided with an insulation layer, and the insulation layer is an aluminum silicate needled blanket.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, most of heat generated in the combustion process is directly fed into the organic fertilizer dryer in a mode of mixing air with combustion flue gas, so that unnecessary loss of the combustion heat is avoided fundamentally under the existing indirect heating design principle, fuel is saved in the production process, and the direct use cost is reduced; on the premise of providing the same heat quantity, the hot blast stove can reduce the required size, reduce the manufacturing cost, be more concise than the structure of the existing equipment, and reduce the failure rate and the maintenance cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic plan sectional view of the present utility model;

fig. 2 is a schematic plan view of the furnace liner.

Reference numerals illustrate: 1. a steel housing; 2. a heat preservation layer; 3. a flue gas channel; 4. a furnace liner; 41. a liner body; 411. a first air hole; 412. a second air hole; 42. a fire gathering cover; 43. a collection bowl; 5. an air intake partition plate; 6. a flap cover; 7. a fixed bracket; 8. a three-way air pipe; 9. a fan air pipe; 10. a temperature-adjusting fan; 11. a combustion fan; 12. a primary air inlet; 13. a secondary air inlet; 14. adjusting a butterfly valve; 15. a fluxgate; 16. a fire observation window; 17. a feed inlet; 18. a temperature probe.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Examples

Referring to fig. 1-2, the utility model provides a high-efficiency hot blast stove for organic fertilizer drying equipment, which comprises a fixed support 7, wherein a steel shell 1 is fixedly arranged at the top of the fixed support 7, an air inlet partition plate 5 is fixedly connected to the inside of the steel shell 1 and close to the bottom, the steel shell 1 is divided into an upper air cavity and a lower air cavity by the air inlet partition plate 5, a furnace liner 4 is fixedly connected to the center of the air inlet partition plate 5, the bottom of a liner body 41 of the furnace liner 4 stretches into the lower air cavity, a second air hole 412 and a first air hole 411 are uniformly formed in the periphery of the liner body 41 and close to the top and the bottom respectively, a secondary air inlet 13 and a primary air inlet 12 are formed in the surface of the steel shell 1 and close to the top and the bottom of the air inlet partition plate 5 respectively, the primary air inlet 12 and the secondary air inlet 13 are fixedly connected with the first end and the second end of a three-way air pipe 8 respectively, the third end of the three-way air pipe 8 is fixedly arranged with the output end of a combustion fan 11, a regulating disc valve 14 is arranged at the first end and the second end of the three-way air pipe 8, the top of the steel shell 1 is fixedly arranged with one end of a flue gas channel 3, the other end of the flue gas channel 3 is fixedly arranged at the other end of the flue gas channel 3 and the flue gas channel 3 is fixedly arranged with a temperature regulating device.

In one embodiment of the utility model, further, the furnace liner 4 further comprises a fire collecting cover 42 and an aggregate bowl 43, wherein the fire collecting cover 42 is welded on the top of the liner body 41, the aggregate bowl 43 is welded on the top of the fire collecting cover 42, the periphery of the top of the aggregate bowl 43 is welded with the periphery of the inner wall of the steel shell 1, and a feed inlet 17 is arranged on one side of the outer wall of the steel shell 1 and close to the top of the aggregate bowl 43.

Specifically, the steel shell 1 is formed by welding carbon steel with the thickness of about 8mm and is welded with the flue gas channel 3 with the thickness of about 1mm, an aluminum silicate needled blanket is adopted as the heat preservation layer 2 in the steel shell 1, the thickness of the heat preservation layer is 3-5cm, and the heat preservation layer mainly serves to isolate heat in a furnace from being dissipated outwards through the furnace wall and a pipeline, so that the heat utilization rate is improved;

the liner body 41, the fire gathering cover 42 and the gathering bowl 43 of the furnace liner 4 are all welded by carbon steel with the thickness of about 5mm, and a layer of refractory cement with the thickness of 2-3 cm is attached to the inside of the furnace liner, so that the service life of the furnace liner 4 is prolonged;

the air inlet partition plate 5 is made of carbon steel with the thickness of about 5mm, and besides the isolation of the first air holes 411 and the second air holes 412, auxiliary fixing effect on the furnace liner 4 is also borne;

the air flow provided by the combustion fan 11 enters the furnace body from the primary air inlet 12 and the secondary air inlet 13 respectively through adjusting the proportion of the butterfly valve, and the air flow and the secondary air inlet are mutually independent, enter the furnace liner 4 through the first air hole 411 and the second air hole 412 respectively to participate in combustion, fuel is incompletely combusted under the primary air inlet, combustible gas can be generated, and can be understood as smoke, and under the condition of full secondary air inlet, the smoke is re-ignited and burnt out, so that the smokeless full combustion of the fuel can be realized, and the fuel heat is utilized to the greatest extent;

the bottom dredging door 15, the fire observation window 16 and the feed inlet 17 which are arranged on the side surface of the steel shell 1 respectively play roles of dredging the first air holes 411 to block ash, observing combustion conditions and supplementing biomass fuel, wherein the fire observation window 16 is made of high-temperature resistant glass, and when the hot blast stove is reasonably arranged, the feed inlet 17 can be matched with a particle fuel automatic feeder, so that automatic operation of equipment is realized, and the automatic operation function can be realized only by manually and periodically dredging the first air holes 411 and connecting ash from an ash collecting hopper;

through the arrangement, most of heat generated in the combustion process is directly fed into the organic fertilizer dryer in a mode of mixing air with combustion flue gas, so that unnecessary loss of the combustion heat is fundamentally avoided under the existing indirect heating design principle, fuel is saved in the production process, and the direct use cost is reduced; on the premise of providing the same heat quantity, the hot blast stove can reduce the required size, reduce the manufacturing cost, be more concise than the structure of the existing equipment, and reduce the failure rate and the maintenance cost.

Through experiments, the hot blast stove can completely achieve smokeless combustion by adjusting two adjusting butterfly valves 14 behind the combustion fan 11, and combustion flue gas is clean and odorless and has no influence on the quality of a finished product after the organic fertilizer is dried; and the combustion is complete, and only a small amount of ash remains after the combustion. Through adjusting the proportion of the temperature adjusting fan 10 mixed with cold air, the temperature of hot air finally entering the dryer is completely controllable, the risk of over-temperature cannot be caused, after adjustment, the automatic operation can be realized completely by matching with the automatic feeder for the granular fuel, and only the first air hole 411 is manually and regularly dredged, and ash is collected from the ash collecting hopper. Under the proper use scene, the high-temperature flue gas of the hot blast stove can be used for further killing pests and germs possibly existing in the organic fertilizer.

In one embodiment of the utility model, the temperature adjusting device further comprises a fan air pipe 9, the fan air pipe 9 is welded on one side of the flue gas channel 3, a temperature probe 18 is arranged at the position, close to the organic fertilizer drying equipment, of the flue gas channel 3, the fan air pipe 9 and the horizontally arranged flue gas channel 3 are arranged at an included angle of 30-45 degrees, and the bottom end of the fan air pipe 9 is fixedly arranged with the output end of the temperature adjusting fan 10.

Specifically, the temperature adjusting fan 10 arranged in the middle of the flue gas channel 3 is an adjustable speed rotating fan, the included angle between the axis of the fan air pipe 9 and the axis of the flue gas channel 3 is 30-45 degrees, so that the smooth air flow of the flue gas channel 3 is ensured, the rotating speed of the temperature adjusting fan 10 can be adjusted by reading the reading of the temperature probe 18 arranged at the tail end of the flue gas channel 3, the proportion of cold air mixed into combustion flue gas is adjusted, and the temperature of finally discharged hot air is controlled.

In one embodiment of the utility model, further, the bottom of the steel shell 1 is provided with an inverted cone-shaped ash collecting hopper, and the top of the ash collecting hopper is provided with a flap cover 6.

Specifically, the fixed bolster 7 is made by angle steel or other steel welding, and is fixed with the whole frame height of hot-blast furnace for the board lid 6 that turns over of collection ash bucket is higher than ground certain height, and it is more convenient to cooperate with ash receiving dish or ash receiving car again, can make the collection clearance of burning ashes more.

In one embodiment of the present utility model, further, a dredging door 15 is disposed at one side of the peripheral outer wall of the steel casing 1 and corresponding to the bottom of the liner 41.

In one embodiment of the present utility model, further, a fire viewing window 16 is disposed on one side of the outer wall of the steel casing 1 and corresponding to the second air hole 412.

In one embodiment of the utility model, further, the inner wall surface of the steel shell 1 is provided with a heat preservation layer 2, and the heat preservation layer 2 is an aluminum silicate needled blanket.

In the use process, biomass fuel is input from a feed port 17, falls into a liner body 41 through an interface of an aggregate bowl 43 and a fire gathering cover 42, is ignited, is insufficiently combusted near a first air hole 411 and realizes gasification of fuel, the generated combustible gas upflow is restrained and contracted at the fire gathering cover 42, is mixed with air sprayed by a second air hole 412 to realize full combustion, the generation of smoke is pressed to the greatest extent, the generated clean combustion smoke carries most combustion heat to enter a smoke channel 3, is mixed with cold air sent by a temperature-adjusting fan 10 in proportion for temperature adjustment, is discharged from the tail part of the smoke channel 3, enters organic fertilizer drying equipment for drying of organic fertilizer, and ashes after combustion fall into an ash collecting hopper at the lower end through the first air hole 411, and can be collected and cleaned by opening a flap cover 6 of the ash collecting hopper.

It should be noted that, the model specifications of the temperature adjusting fan 10, the combustion fan 11, the adjusting butterfly valve 14 and the organic fertilizer drying device need to be determined by selecting the model according to the actual specifications of the device, and the specific model selection calculation method adopts the prior art in the field, so that detailed description is omitted.

The power supply of the temperature-adjusting fan 10, the combustion fan 11, the adjusting butterfly valve 14 and the organic fertilizer drying device and the principle thereof are clear to a person skilled in the art and will not be described in detail here.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (7)

1. The utility model provides a high-efficient hot-blast furnace for fertilizer drying equipment, includes fixed bolster (7), its characterized in that, the top fixed mounting of fixed bolster (7) has steel shell (1), the inside of steel shell (1) just is close to bottom department fixedly connected with air inlet division board (5), air inlet division board (5) will steel shell (1) is divided into upwind chamber and downwind chamber, the central fixedly connected with stove inner bag (4) of air inlet division board (5), the courage body (41) bottom of stove inner bag (4) stretches into downwind intracavity portion, second gas pocket (412) and first gas pocket (411) have been seted up respectively around courage body (41) and be close to top and bottom, the surface of steel shell (1) just is close to air inlet division board (5) top and bottom department are equipped with secondary air intake (13) and primary air intake (12), primary air intake (12) and secondary air intake (13) are respectively with tee bend tuber pipe (8) first end and second end fixed connection, tee bend (8) first end and third end (8) are installed respectively, tee bend (8) are installed with the first end of air duct (1) and are fixed to the top of tee bend (1) and are installed respectively, the other end of the flue gas channel (3) is fixedly arranged with the input end of the organic fertilizer drying equipment, and a temperature adjusting device is arranged at the flue gas channel (3).

2. The efficient hot-blast stove for organic fertilizer drying equipment according to claim 1, wherein the stove inner container (4) further comprises a fire gathering cover (42) and a material gathering bowl (43), the fire gathering cover (42) is welded to the top of the container body (41), the material gathering bowl (43) is welded to the top of the fire gathering cover (42), the periphery of the top of the material gathering bowl (43) is welded to the periphery of the inner wall of the steel shell (1), and a feed inlet (17) is formed in one side of the outer wall of the steel shell (1) and close to the top of the material gathering bowl (43).

3. The efficient hot-blast stove for the organic fertilizer drying equipment according to claim 2, wherein the temperature adjusting device comprises a fan air pipe (9), the fan air pipe (9) is welded on one side of the flue gas channel (3), a temperature probe (18) is arranged at the position, close to the organic fertilizer drying equipment, of the flue gas channel (3), the fan air pipe (9) is arranged at an included angle of 30-45 degrees with the flue gas channel (3) horizontally arranged, and the bottom end of the fan air pipe (9) is fixedly arranged with the output end of the temperature adjusting fan (10).

4. A high efficiency hot blast stove for organic fertilizer drying equipment according to claim 3, characterized in that the bottom of the steel housing (1) is provided with an ash collecting hopper in the shape of an inverted cone, and the top of the ash collecting hopper is provided with a flap cover (6).

5. The efficient hot-blast stove for organic fertilizer drying equipment according to claim 1, wherein a dredging door (15) is arranged at one side of the peripheral outer wall of the steel shell (1) and at the bottom of the liner body (41).

6. The efficient hot-blast stove for organic fertilizer drying equipment according to claim 1, wherein a fire viewing window (16) is arranged at one side of the peripheral outer wall of the steel shell (1) and corresponds to the second air hole (412).

7. The efficient hot-blast stove for organic fertilizer drying equipment according to claim 1, wherein a heat preservation layer (2) is arranged on the inner wall surface of the steel shell (1), and the heat preservation layer (2) is an aluminum silicate needled blanket.