CN104728915A - Energy-saving heated kang regeneration cyclic utilization system combusting straws - Google Patents

Abstract

The invention relates to a heated kang cyclic utilization system combusting straws, in particular to an energy-saving heated kang regeneration cyclic utilization system combusting the straws. The purpose is to solve the problems that an existing heated kang is overheated partially to cause partial damage, when the straws are combusted to heat a heated kang, indoor negative pressure and harmful gas are prone to flowing into a room, and stove ash obtained after combustion cannot be used fully. An ash storing cavity is formed in the top end of an ash storing chamber, a stove grate is fixedly connected to the top end of the ash storing cavity, and an arch water sleeve is buckled at the top end of the stove grate; a first vent pipe is communicated with the bottom end of the ash storing cavity, and the other end of the first vent pipe is arranged outdoors and detachably communicated with the air inlet end of a fan; the fan has stirring and smashing functions, the air outlet end of the fan is communicated with one end of a second vent pipe, and the other end of the second vent pipe is communicated with the air inlet end of a cyclone dust collector assembly; the cyclone dust collector assembly is fixedly connected to the top end of the ash storing cavity, the dust outlet end of the cyclone dust collector assembly is communicated with the ash storing cavity, and a gate ash outlet is formed in the bottom end of the ash storing cavity. The heated kang cyclic utilization system is suitable for warming in the North in winter.

Description

Energy-saving kang regeneration and recycling system for burning straw

technical field

The invention relates to a recycling system for burning kang with straw.

Background technique

Kang is a commonly used heating facility in the homes of rural residents in the north. It is widely used because it can be connected to the stove, the whole surface of the kang can dissipate heat well, the cost is low and the practicability is strong. But also there is following problem in existing heated kang:

1. Since the burning material is concentrated in the inner end of the kang flue, it is easy to cause local overheating of the kang surface corresponding to the combustion pool at the inner end of the kang flue, which will cause local carbonization and damage to the decorations on the kang surface, affecting the normal use of the kang, as shown in Figure 1 Shown in the label 34 in, and the cement board of the fire kang flue inner end combustion pool strength reduces gradually after flame long-term baking, causes the heated kang local damage, thereby reduces the service life of the heated kang.

2. Most of the rural areas in the north use straw as fuel. The straw is burned once in the kang hole, and the combustion efficiency is low. Moreover, the ash (scientific name plant ash) after straw burning is an excellent organic fertilizer, and its composition potassium content is 5%~ 10%, phosphorus content 2% to 3%, in addition also contains calcium and a small amount of nutrients such as magnesium, iron, sulfur, zinc, manganese, molybdenum, and the ashes after burning are discarded at will, resulting in waste of organic fertilizer raw materials.

3. With the implementation of energy-saving building enclosure structures in the north, the walls of farm houses have a good seal, which makes the indoor ventilation poor, and the burning of straw in the kang consumes a lot of oxygen in the room, resulting in indoor air pollution. Negative pressure, which is not only prone to smoke choking, but also produces a large amount of harmful gases such as carbon monoxide and carbon dioxide, which reduces indoor air quality and endangers human health.

4. Since the existing kang combustion furnace is installed indoors, the ash produced after straw burning has to be removed from the room by manual transfer. Due to the light weight of the ash, the ash is easily scattered during the removal process, resulting in serious indoor PM2.5 exceeding the standard .

Contents of the invention

The purpose of the present invention is to provide an energy-saving heated kang regeneration and recycling system for burning straws, so as to solve the problem of local overheating of the existing heated kang, causing local damage to the heated kang, indoor negative pressure, choking smoke at the furnace door, and harmful The gas flows into the room, the straw is not fully burned, and the burnt ash cannot be fully utilized.

The technical scheme that the present invention takes for solving the above problems is: the energy-saving heated kang regeneration and recycling system of the present invention includes a heated kang, a heating system, a boiler, a fan, a heat radiation kang wall assembly, a cyclone dust collector assembly and an ash storage bin. ,

The heat dissipation kang wall assembly includes a steel plate and a heat dissipation decorative plate. The surface of the heat dissipation decorative plate is evenly distributed with several heat dissipation holes. The outer wall of the heated kang is provided with a through cavity. The steel plates are matched with the through cavity sequentially from the outside to the inside, and the steel plates and the heat-dissipating decorative plates are arranged at intervals,

The boiler is composed of an arched water jacket, a grate and ash storage room. The boiler is installed at the inner end of the flue of the kang.

There is an ash storage cavity on the top of the ash storage chamber, and a grate is fixed on the top of the ash storage cavity, and the arched water jacket is buckled on the top of the grate.

The through cavity of the arched water jacket is arranged along the direction of flue gas flow, and the inner end of the flue of the kang is provided with a through hole, and the end surface of one side end of the arched water jacket protrudes from the through hole.

A water inlet is provided on the outer side wall of a foot of the end surface of the side end of the arched water jacket, and a water outlet is provided on the top surface of the side end of the arched water jacket, and the water outlet of the arched water jacket is connected with the water inlet of the heating system. The water return end of the heating system is connected with the water inlet end of the arched water jacket, the side end of the arched water jacket is higher than the other side end of the arched water jacket, and the slope of the bottom surface of the arched water jacket is 3 % to 10%,

One end of the first ventilation pipe communicates with the bottom end of the ash storage chamber of the ash storage chamber, and the other end of the first ventilation pipe is arranged outdoors and detachably communicates with the air intake end of the fan. The fan is a fan with a crushing function. The air outlet end communicates with one end of the second ventilation pipe, and the other end of the second ventilation pipe communicates with the inlet end of the cyclone dust collector assembly. The cyclone dust collector assembly is fixedly connected to the top of the ash storage bin. The dust end is connected with the ash storage bin, and the bottom of the ash storage bin is provided with a flashboard ash outlet.

The heating system is provided with an upper water tank.

Compared with the prior art, the present invention has the following beneficial effects:

1. The arched water jacket 11 of the present invention covers the top of the furnace grate 12, thereby covering the flame when the straw is burning, effectively protecting the surface of the heated kang above the boiler from being directly baked by the flame, thereby ensuring the inner end of the heated kang flue. The strength of the cement board in the combustion pool prolongs the service life of the heated kang 01, and makes the heating of the heated kang 01 even and safe.

2. Transfer the excess heat energy during the straw burning process to the heating system 02 for indoor heating, so that the excess heat energy generated by the straw burning in the kang 01 can be fully utilized, and the return water end of the heating system 02 is connected to the arch water The water inlet end of the cover 11 is connected, so that the water in the arched water cover 11 can be recycled repeatedly, saving energy.

3. The steel plate 07 and the heat dissipation decorative plate 08 of the heat-dissipating kang wall assembly make the side wall of the heated kang 01 carry out heat dissipation and heating indoors, thereby increasing the heat dissipation area and heating effect of the heated kang 01, greatly improving the utilization rate of the heated kang 01, and effectively Energy saving.

4. The bottom of the ash storage chamber 15 is connected to the outside through the first ventilation pipe 19, which provides sufficient oxygen for straw burning, stabilizes the indoor air pressure, makes the straw burn fully, effectively guarantees the indoor air quality, and avoids harmful gases such as carbon monoxide and choking smoke The production of straw has greatly improved the utilization rate of straw combustion.

5. When it is necessary to clean the ash storage chamber 15, start the fan 03, and the straw ash in the ash storage chamber 15 is sucked into the ash storage bin 06 through the first ventilation pipe 19, the fan 03 and the second ventilation pipe 20, ensuring that the indoor The air quality, pm2.5 is up to the standard, preventing the straw ash from accumulating and polluting the environment, and the ash storage bin 06 collects the straw ash, so that the straw ash can be fully utilized.

6. The fan 03 is a fan with a crushing function, which crushes the straw ash into uniform granules, which is convenient for subsequent packaging into bags and use.

7. The slope of the bottom surface 17 of the arched water jacket 11 is 3% to 10%. If the arched water jacket 11 is placed horizontally, the air bubbles in the arched water jacket 11 will easily stay in the upper part of the arched water jacket 11. When the air bubbles accumulate to To a certain extent, it will suddenly pour into the upper water tank 05 of the heating system 02, causing water to escape in the upper water tank 05, so that the upper water tank 05 cannot adjust the heating system 02, and the slope of the bottom surface 17 of the arched water jacket 11 of the system of the present invention 3% to 10%, because the hot water is lighter than the cold water, the cold water can be replenished in time when the hot water flows upwards, and local superheated steam will not be generated, so that the water in the arched water jacket 11 can form a natural circulation, thereby ensuring The upper water tank 05 can regulate the heating system 02 .

8. The cavity of the arched water jacket 11 is arranged along the flue gas flow direction, which facilitates the flow of flue gas generated by straw burning and effectively prevents local overheating of the side wall of the kang.

The energy-saving straw burning heated kang regeneration recycling system of the present invention was used for a comparative test with the farmer's self-made heated kang. Two groups of 5 kg of straw were put into the heated kang system of the present invention and the farmer's self-made heated kang respectively and burned under the same conditions. After burning, the residual straw amount in the heated kang system of the present invention is 1/2 of the residual straw amount in the self-made heated kang by farmers.

Description of drawings

Fig. 1 is a schematic diagram of axonometric view of heated kang 01 of the present invention, and Fig. 2 is a partial sectional view of A-A of Fig. 1, and the arrow in Fig. 2 represents the direction of warm air flow, and Fig. 3 is a top sectional view of heated kang 01 of the present invention, and number 31 is in Fig. 3 The flue gas outlet, the arrow in Fig. 3 indicates the flue gas flow direction, Fig. 4 is a schematic diagram of the connection structure of the boiler, heating system 02, fan 03, cyclone dust collector assembly 04 and ash storage bin 06 of the present invention, Fig. 5 is Fig. 4 The B-B sectional view in Fig. 6 is a schematic diagram of the heating system 02 of Embodiment 4, and the number 05 in Fig. 6 is the upper water tank.

Detailed ways

Specific embodiment 1: In conjunction with Fig. 1 to Fig. 6, the energy-saving heated kang regeneration and recycling system for burning straw in this embodiment includes a heated kang 01, a heating system 02, a boiler, a fan 03, a heat dissipation kang wall assembly, and a cyclone dust collector assembly. into 04 and ash storage bin 06,

Heat radiation kang wall assembly comprises steel plate 07 and heat radiation decorative plate 08, and heat radiation decorative plate 08 plate surface is evenly distributed with some cooling holes 09, and the outer wall of heated kang 01 is provided with through cavity 10, and steel plate 07 and heat radiation decorative plate 08 are all connected with through hole 09. The shape of the cavity 10 is consistent, the heat dissipation decorative plate 08 and the steel plate 07 are matched with the through cavity 10 from outside to inside, and the steel plate 07 and the heat dissipation decorative plate 08 are arranged at intervals,

The boiler is composed of an arched water jacket 11, a grate 12 and an ash storage room 13. The boiler is arranged at the inner end of the flue 16 of the kang 01.

The top of the ash storage chamber 13 is provided with an ash storage cavity 15, and the top of the ash storage cavity 15 is fixedly connected with a furnace grate 12, and the arched water jacket 11 is fastened on the top of the furnace grate 12.

The through cavity 38 of the arched water jacket 11 is arranged along the flue gas flow direction, and the inner end of the flue 16 of the kang 01 is provided with a through hole, and the end surface of one side end of the arched water jacket 11 protrudes from the through hole.

The outer wall of a bottom foot of the end face of the side end of the arched water jacket 11 is provided with a water inlet, and the top surface of the side end of the arched water jacket 11 is provided with a water outlet, and the water outlet of the arched water jacket 11 is connected to the heating system. The water inlet end of 02 is connected, and the return water end of the heating system 02 is connected with the water inlet end of the arched water jacket 11. The side end of the arched water jacket 11 is higher than the other side end of the arched water jacket 11, and the arched water jacket 11 The slope of the bottom surface 17 of the shaped water jacket 11 is 3% to 10%,

One end of the first ventilation pipe 19 communicates with the bottom end of the ash storage chamber 15 of the ash storage chamber 13, and the other end of the first ventilation pipe 19 is arranged outdoors and is detachably connected with the intake end of the blower fan 03. Functional fan, the outlet end of the fan 03 communicates with one end of the second ventilation pipe 20, the other end of the second ventilation pipe 20 communicates with the inlet end of the cyclone dust collector assembly 04, and the cyclone dust collector assembly 04 is fixedly connected to the storage The top of the ash bin 06 and the dust outlet end of the cyclone dust collector assembly 04 are connected with the ash storage bin 06, and the bottom end of the ash storage bin 06 is provided with a flashboard ash outlet 35.

The blower fan 03 with the crushing function is a prior art, is to be provided with rotating blades in the air duct of the blower fan or fixedly connect a plurality of sharp blades along the flow direction of the airflow regularly, when the blower fan 03 sucks the airflow, the attached The straw slag is shredded by a rotating blade or multiple sharp blades, such as a shredder fan.

The bottom end of the ash storage bin 06 is fixedly connected with a conical shell 36, and the bottom end of the conical shell 36 is fixedly connected with the ash outlet 35 of the flashboard. The conical shell 36 is provided with a conical through cavity. The big end is communicated with the bottom end of the ash storage bin 06, and the small end of the tapered through cavity is communicated with the flashboard ash outlet 35. The conical shell 36 plays the role of transitional buffer, effectively preventing the ash outlet 35 of the flashboard from being squeezed by the straw ash from being blocked.

The heating system 02 is provided with an upper water tank 05 .

Specific Embodiment 2: Referring to FIG. 2 , the distance H between the steel plate 07 and the heat dissipation decorative plate 08 in this embodiment is 40 mm to 100 mm.

The distance H effectively ensures that the heat conducted by the steel plate 07 is fully dissipated through the heat dissipation decorative plate 08 , and prevents the heat from staying in the distance H due to too large distance between the steel plate 07 and the heat dissipation decorative plate 08 .

The undisclosed technical features in this embodiment are the same as those in the first embodiment.

Embodiment 3: In conjunction with FIG. 2 , the distance H between the steel plate 07 and the heat dissipation decorative plate 08 in this embodiment is 50 mm. The distance H between the steel plate 07 and the heat dissipation decorative plate 08 in this embodiment is an optimal value.

The undisclosed technical features in this embodiment are the same as those in the second embodiment.

Specific Embodiment Four: In conjunction with Fig. 4 and Fig. 6, the heating system 02 of this embodiment includes an upper water tank 05 and several radiator groups 21, and the water outlet end of the arched water jacket 11 communicates with one end of the first connecting pipe 22, The other end of the first connecting pipe 22 communicates with several radiator groups 21 of the heating system 02 in parallel through several connecting pipes, and the water inlet end of the upper water tank 05 communicates with the side wall of the first connecting pipe 22. The groups 21 are connected in sequence, and one radiator group 21 of the heating system 02 is connected with the water inlet end of the arched water jacket 11 .

The upper water tank 05 is used to adjust the heating system 02 to ensure the continuous and stable operation of the heating system 02.

The undisclosed technical features in this embodiment are the same as those in the first or third specific embodiment.

Embodiment 5: In conjunction with FIG. 1 , the through cavity 10 on the outer wall of the kang 01 in this embodiment is a rectangular through cavity opened horizontally.

The heat dissipation area of the rectangular plate surface is large, and the heat dissipation and heating performance of the heat dissipation kang wall assembly can be fully utilized.

The undisclosed technical features in this embodiment are the same as those in the fourth embodiment.

Specific Embodiment Six: Referring to FIG. 1 , the heat dissipation decorative board 08 of this embodiment is a decorative surface density board or a laminated density board.

Decorative surface density board or veneer density board can not only meet the functions of heat dissipation and protection from scalding of steel plates, but also meet the needs of indoor decoration.

The undisclosed technical features in this embodiment are the same as those in the fifth embodiment.

Embodiment 7: In conjunction with FIG. 4 , the side wall at the other end of the first vent pipe 19 in this embodiment communicates with one end of the third vent pipe 24, and the other end of the third vent pipe 24 is provided with a detachable sealing cover. .

The third air pipe 24 and the detachable sealing cover are arranged on the other end of the first air pipe 19, which is more labor-saving and easy to operate than dismounting the other end of the first connecting pipe to allow the ash storage chamber 15 to circulate air. Convenient and not easy to dirty hands, as long as the detachable sealing cover of the third ventilation pipe 24 is removed, the air circulation of the ash storage chamber 15 can be realized.

The undisclosed technical features in this embodiment are the same as those in specific embodiments 1, 3 or 6.

Embodiment 8: In conjunction with FIG. 4 , the blower 03 in this embodiment is a shredding blower.

The fan with the crushing function includes a shredder fan, the air duct of the shredder fan is provided with a rotating blade, and when the shredder fan sucks in the airflow, the rotating blade rotates to break up the straw slag attached to the inhaled airflow.

The undisclosed technical features in this embodiment are the same as those in the seventh embodiment.

Embodiment 9: In conjunction with FIG. 4 , the fan 03 of this embodiment is a non-standard fan with a power of 750w, a rotation speed of 2800 rpm, a rated current of 4.5A and a voltage of 220V and a crushing function.

The non-standard fan with crushing function is the prior art, and those skilled in the art add corresponding crushing blades in the air duct of the fan according to the actual use needs of the fan to meet the actual use needs.

The undisclosed technical features in this embodiment are the same as those in the seventh embodiment.

working principle

Referring to Fig. 1 to Fig. 6, when the stalks are burning on the grate 12, the other end of the first ventilation pipe 19 is unloaded from the fan 03, or the other end of the third ventilation pipe 24 is opened , to ensure the air circulation under the arched water jacket 11, to provide sufficient oxygen for the continuous combustion of straw, and effectively prevent the insufficient combustion of straw from causing indoor hypoxia or the production of harmful substances such as carbon monoxide. flow to make the kang 01 warm; part of the hot air conducts the heat to the steel plate 07, and the steel plate 07 diffuses the heat to the room through several heat dissipation holes 09 of the heat dissipation decorative plate 08, and at the same time, the heat in the arched water jacket 11 above the grate 12 The water is heated, and the water outlet end of the arched water jacket 11 supplies hot water to the heating system 02. After the water in the heating system 02 is used, it returns to the arched water jacket 11 through the water inlet end of the arched water jacket 11, thereby realizing the arch. The water in the shaped water jacket 11 is recycled repeatedly,

The ash formed after straw burning slides from the grate 12 into the ash storage chamber 15. When the straw ash accumulates in the ash storage chamber 15 to a certain extent, the fan 03 has the function of crushing, so the inhaled straw ash After being crushed by the fan 03, it is blown into the cyclone dust collector assembly 04, and the straw ash in the cyclone dust collector assembly 04 slides into the ash storage bin 06. The gate ash outlet 35 is opened to store the straw ash in bags, and the straw ash can also be directly applied to the field as an organic fertilizer.

The working principle of the cyclone dust collector assembly 04: the second ventilation pipe 20 transmits the straw dust and airflow to the cavity of the cyclone dust collector assembly 04, and the top of the cyclone dust collector assembly 04 is provided with a filter ventilation pipe 32, and the filter ventilation pipe The bottom end of 32 is arranged at the bottom end of the inner chamber of the cyclone dust collector assembly 04, and the air flow enters the air after being filtered from the bottom end of the filter vent pipe 32.

Brief description of plant ash: Plant ash is the ashes of plants after burning. It is easy to obtain materials, has many fertilizer effects, and is a good potash fertilizer. The composition of plant ash is complex and contains various ash elements in plants, but it contains the most potassium, generally 5% to 10% potassium and 2% to 3% phosphorus. In addition to potassium and phosphorus, it also contains calcium and a small amount of magnesium, Iron, sulfur, zinc, manganese, molybdenum and other nutrients. According to the measurement, the black-gray plant ash contains more potassium, and the gray-white plant ash contains less potassium. The depth of the gray color is related to the degree of burning. Therefore, pay attention to observation when burning plant ash. The fertilizer effect of dry firewood and wet firewood is different. Rational use of plant ash can make flowers grow robustly, develop root systems, increase bulbous roots, and improve the ability of flowers and trees to resist cold, drought, and pests and diseases. Plant ash is a quick-acting fertilizer that can be used as base fertilizer, topdressing fertilizer and seed fertilizer. Add appropriate amount of plant ash when preparing culture soil. On the one hand, it can provide nutrients such as potassium and phosphorus required by flowers and trees; The underground part is hypertrophic. After sowing the seedlings, cover it with a layer of plant ash about 1 cm thick, as a cover seed fertilizer, which can not only provide nutrients, but also increase the soil temperature, so that the seeds can germinate early, and the seedlings will emerge strong and neat. Plant ash extract can be used for external fertilization after being fully filtered. Especially for some fruit-watching flowers and trees, if the leaves are sprayed after flowering, the fruit quality will be good, the fruit stalk will become thicker, and it will not fall off easily.

Plant ash is not only a good potassium fertilizer, but also can prevent and control a variety of diseases and insect pests. According to information, applying plant ash in the rhizosphere furrow of diseased plants has a good effect on the prevention and treatment of root rot and blight, and can also prevent grubs and root maggots. Plant ash is an alkaline fertilizer and can be used on neutral soil, especially on acidic soil, but not on saline-alkali soil. It should not be mixed with ammonium sulfate, ammonium chloride, ammonium bicarbonate, ammonium nitrate and other nitrogen fertilizers, so as not to reduce the fertilizer efficiency, and can not be added to human feces, otherwise the ammonium nitrogen will become ammonia and volatilize , will also reduce fertilizer efficiency.

Claims (9)

1. the energy-saving heated kang recycling utilization system of burning straw, the energy-saving heated kang recycling utilization system of described burning straw comprises heated kang (01) and heating system (02), it is characterized in that: the energy-saving heated kang recycling utilization system of described burning straw also comprises boiler, blower fan (03), heat radiation a heatable brick bed wall assembly, cyclone dust collectors assembly (04) and ash-storing bin (06), heat radiation a heatable brick bed wall assembly comprises steel plate (07) and heat radiation decorative panel (08), heat radiation decorative panel (08) plate face is evenly equipped with several louvres (09), the lateral wall of heated kang (01) offers cavity (10), steel plate (07) and heat radiation decorative panel (08) all consistent with cavity (10) shape, heat radiation decorative panel (08) matches with cavity (10) from outside to inside successively with steel plate (07), and steel plate (07) is arranged in spacing with heat radiation decorative panel (08), boiler is by arch water jacket (11), fire grate (12) and Dust Storage Room (13) composition, the flue (16) that boiler is arranged at heated kang (01) is inner, the top of Dust Storage Room (13) offers the grey chamber of storage (15), store up grey chamber (15) top and be connected with fire grate (12), arch water jacket (11) spiral-lock is in the top of fire grate (12), the cavity 38 of arch water jacket (11) is arranged along flow of flue gas direction, flue (16) the inner of heated kang (01) offers through hole, the end face of a side of arch water jacket (11) stretches out through hole, a footing lateral wall of the end face of the described side of arch water jacket (11) is provided with water inlet end, the end face of arch water jacket (11) described side is provided with water side, the water side of arch water jacket (11) is communicated with the water inlet end of heating system (02), the backwater end of heating system (02) is communicated with the water inlet end of arch water jacket (11), the described side of arch water jacket (11) is higher than another side of arch water jacket (11), bottom surface (17) gradient of arch water jacket (11) is 3% to 10%, one end of first breather pipe (19) is communicated with storage ash chamber (15) bottom of Dust Storage Room (13), the other end of the first breather pipe (19) is arranged at outdoor and is detachably communicated with the inlet end of blower fan (03), blower fan (03) is for having the blower fan blending function, the outlet side of blower fan (03) is communicated with one end of the second breather pipe (20), the other end of the second breather pipe (20) is communicated with the inlet end of cyclone dust collectors assembly (04), cyclone dust collectors assembly (04) is fixed in ash-storing bin (06) top, cyclone dust collectors assembly (04) go out dirt end and ash-storing bin (06) is connected, ash-storing bin (06) bottom is provided with flashboard ash hole 35.

2. the energy-saving heated kang recycling utilization system of burning straw according to claim 1, is characterized in that: steel plate (07) is 40mm to 100mm with the spacing H of heat radiation decorative panel (08).

3. the energy-saving heated kang recycling utilization system of burning straw according to claim 2, is characterized in that: steel plate (07) is 50mm with the spacing H of heat radiation decorative panel (08).

4. the energy-saving heated kang recycling utilization system of the burning straw according to claim 1 or 3, it is characterized in that: heating system (02) comprises upper water box (05) and several radiator groups (21), the water side of arch water jacket (11) is communicated with one end of the first tube connector (22), the other end of the first tube connector (22) simultaneously with several radiator groups (21) of heating system (02) by several tube connector parallel communication, the water inlet end of upper water box (05) is communicated with the sidewall of the first communicating pipe (22), several radiator groups (21) are communicated with successively, a radiator group (21) of heating system (02) is communicated with the water inlet end of arch water jacket (11).

5. the energy-saving heated kang recycling utilization system of burning straw according to claim 4, is characterized in that: the rectangle cavity that the cavity (10) of heated kang (01) lateral wall is offered for level.

6. the energy-saving heated kang recycling utilization system of burning straw according to claim 5, is characterized in that: heat radiation decorative panel (08) is decorative cover density board or veneer density board.

7. the energy-saving heated kang recycling utilization system of the burning straw according to claim 1,3 or 6, it is characterized in that: the described other end sidewall of the first breather pipe (19) is communicated with one end of the 3rd breather pipe (24), and the other end of the 3rd breather pipe (24) is provided with removable seal lid.

8. the energy-saving heated kang recycling utilization system of burning straw according to claim 7, is characterized in that: blower fan (03) is Paper crusher fan.

9. the energy-saving heated kang recycling utilization system of burning straw according to claim 7, is characterized in that: the power of blower fan (03) is 750w, revolution is 2800 revolutions per seconds, rated current to be 4.5A and voltage be 220V's and there is the non-standard blower fan blending function.