CN214581180U - Coal-fired warm air furnace - Google Patents

Abstract

The utility model discloses a coal-fired warm air furnace, wherein a combustion chamber is communicated with a material bin, the combustion chamber is communicated with a broken carbon collecting chamber and a carbon residue collecting chamber respectively, the broken carbon collecting chamber is connected with the carbon residue collecting chamber, the communicating position of the combustion chamber and the broken carbon collecting chamber is separated by a perforated assembly, one end of the perforated assembly extends to the communicating position of the material bin and the combustion chamber, and the other end extends to the communicating position of the combustion chamber and the carbon residue collecting chamber; the ash receiving chamber and the combustion chamber are on the same horizontal line, the tubular heat exchanger is positioned at the top of the ash receiving chamber and the top of the combustion chamber, the ash receiving chamber is communicated with a smoke exhaust pipe, the smoke exhaust pipe and the combustion chamber are respectively arranged at two opposite sides of the ash receiving chamber, and the pipe orifice at the bottom end of the tubular heat exchanger is arranged and plugged at the communication position of the combustion chamber and the tubular heat exchanger and is arranged and plugged at the communication position of the ash receiving chamber and the tubular heat exchanger. The utility model discloses a coal-fired warm air furnace, which can reduce the discharge of dust and is beneficial to the environment.

Description

Coal-fired warm air furnace

Technical Field

The utility model relates to a warm-air furnace technical field, more specifically the utility model relates to a coal-fired warm-air furnace that says so.

Background

The warm air furnace is widely used for civil heating, farm heating and workshop heating, the warm air furnace in the market is generally divided into a coal-fired type and a gas-fired type, the fuel of the gas-fired warm air furnace is combustible gas, mainly natural gas or coal gas, the phenomenon of explosion is easy to occur, the fuel source of the coal-fired hot air furnace is rich, and therefore the coal-fired hot air furnace is widely popular with people.

However, at present, a large amount of coal ash and dust are generated when the coal-fired warm air furnace is filled, and a large amount of harmful gas and particles are discharged in the combustion process, so that the problems of poor sanitary condition and large environmental pollution are caused, and the coal-fired warm air furnace does not meet the national environmental protection requirement.

In addition, the existing coal-fired warm air furnace also has the problems of heat waste and the like caused by the fact that the heat in the furnace cannot be fully utilized.

Therefore, how to provide a coal-fired warm air furnace capable of reducing the dust emission is a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a coal-fired formula warm braw stove can reduce the emission of dust, reduces the temperature of fume emission simultaneously to improve heat output simultaneously, be favorable to energy-conserving environmental protection.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a coal-fired warm air furnace comprising:

the furnace chamber is internally provided with a combustion chamber, a crushed carbon collecting chamber, a carbon residue collecting chamber, a gas circulation chamber and an ash receiving chamber respectively; the combustion chamber is communicated with a bin, the combustion chamber is communicated with the crushed carbon collection chamber and the carbon residue collection chamber respectively, the crushed carbon collection chamber is connected with the carbon residue collection chamber, the communicated position of the combustion chamber and the crushed carbon collection chamber is blocked by a perforated assembly, one end of the perforated assembly extends to the communicated position of the bin and the combustion chamber, and the other end of the perforated assembly extends to the communicated position of the combustion chamber and the carbon residue collection chamber; the ash receiving chamber and the combustion chamber are on the same horizontal line, the gas circulation chamber is positioned at the tops of the ash receiving chamber and the combustion chamber, meanwhile, the ash receiving chamber is communicated with a smoke exhaust pipe, and the smoke exhaust pipe and the combustion chamber are respectively positioned at two opposite sides of the ash receiving chamber;

an air inlet communicated with the gas circulation chamber is formed in the top end of the furnace room, an air blower is communicated with the air inlet, a tube type heat exchanger is fixed in the gas circulation chamber, a tube opening at the bottom end of the tube type heat exchanger is arranged and blocked at the communication position of the combustion chamber and the gas circulation chamber, an ash receiving chamber and the communication position of the gas circulation chamber are arranged and blocked, hot gas in the combustion chamber enters the tube type heat exchanger through a corresponding tube opening at the bottom end of the tube type heat exchanger for heat exchange, the gas after heat exchange enters the ash receiving chamber through a corresponding tube opening at the bottom end of the tube type heat exchanger in the ash receiving chamber, the smoke exhaust pipe is positioned in the gas circulation chamber, a blast channel is formed between the periphery of the tube type heat exchanger and the inner wall of the gas circulation chamber, and the blast channel is respectively communicated with the combustion chamber and the inner wall of the gas circulation chamber, The broken carbon collecting chamber, the carbon residue collecting chamber, the ash receiving chamber and the smoke exhaust pipe are in closed connection, and air introduced by the air blower circulates in the air duct;

the furnace comprises a furnace room, a combustion chamber, a furnace chamber, a combustion chamber, an ignition port, a slag cleaning port and an ash cleaning port, wherein the combustion chamber is arranged on the wall of the furnace room, the combustion chamber is provided with an observation port, the furnace chamber is provided with an ignition port communicated with the crushed carbon collection chamber, the furnace chamber is communicated with the slag cleaning port and the ash cleaning port communicated with the ash collection chamber, and the furnace chamber is provided with a hot air outlet.

Preferably, the top of stove room is opened to lead to and is had first installing port, the both ends that the feed bin is relative are inlet port and discharge port respectively, the feed bin is fixed in the stove room, just the inlet port passes first installing port is located outside the stove room, discharge port with the combustion chamber switch-on, simultaneously the inner wall slope of feed bin, and keep away from discharge port's one end extremely is close to discharge port one end gradually to the direction slope of combustion chamber.

Preferably, the top of furnace room is opened to lead to there is the second installing port, the relative both ends of pipe of discharging fume are for advancing the cigarette port and the port of discharging fume respectively, it fixes to discharge fume the pipe in the furnace room, just advance the cigarette port with connect the ash room switch-on, the port of discharging fume passes the second installing port is located outside the furnace room, simultaneously the switch-on has the smoke ventilator on the port of discharging fume.

Preferably, a feeding machine is arranged at a connection position of the discharge port and the combustion chamber, and the feeding machine is positioned at the top of the perforated assembly.

Preferably, the feed bin is close to the through-hole has been seted up on the lateral wall of discharge port department, just the feeder includes:

the motor is fixed on the outer wall of the storage bin;

the material pushing plate is positioned on the assembly with the hole, one end of the material pushing plate is connected with a slider-crank mechanism, the slider-crank mechanism penetrates through the through hole to be connected to an output shaft of the motor, and the motor can reciprocate on the assembly with the hole through the slider-crank mechanism.

Preferably, the apertured assembly comprises:

one end of the supporting plate is fixed on the inner wall of the furnace chamber close to the discharge port, the other end of the supporting plate extends to the connection position of the combustion chamber and the crushed carbon collecting chamber, and a first limiting groove is formed in the end part of the supporting plate located at the connection position of the combustion chamber and the crushed carbon collecting chamber;

the supporting plate is fixed at the joint of the crushed carbon collecting chamber and the carbon residue collecting chamber, and a second limiting groove is formed in one end, close to the combustion chamber, of the supporting plate;

the grate is positioned between the supporting plate and the supporting plate, two ends of the grate are embedded in the first limiting groove and the second limiting groove in a one-to-one correspondence mode, and a plurality of holes are formed in the grate.

Preferably, the supporting plate and the support are both steel plates, and the grate is made of cast iron materials.

Preferably, the supporting plate and the grate are obliquely arranged, and the supporting plate and the grate are gradually inclined towards the bottom end of the carbon residue collecting chamber from the position close to the discharge port to the position close to the carbon residue collecting chamber.

Preferably, the side wall of the broken carbon collecting chamber is provided with an air supplementing opening.

Preferably, the number of the heat exchange tubes (for convenience of description, referred to as downward heat exchange tubes) of the tube type heat exchanger corresponding to the ash receiving chamber is 5 times that of the heat exchange tubes (for convenience of description, referred to as upward heat exchange tubes) corresponding to the combustion chamber.

Preferably, a heat dissipation wane is fixed on the outer wall of the smoke exhaust pipe.

According to the technical scheme, compare with prior art, the utility model discloses a coal-fired formula warm braw stove can realize following technological effect:

the fuel in the storage bin of the utility model enters the combustion chamber to be combusted, in the process, fine carbon slag falls in the broken carbon collecting chamber through the hole on the assembly part with the hole, large particle carbon ash falls in the carbon slag collecting chamber, thereby being beneficial to the full combustion of the fuel, and reducing the production of pollutants and dust, meanwhile, the hot flue gas coming out of the combustion chamber firstly enters the tubular heat exchanger, and simultaneously, the air blown in by the air blower through the air inlet circulates in the blast passage and collides with the outer wall of the tubular heat exchanger, so that the tubular heat exchanger can exchange heat between the hot flue gas coming from the combustion chamber and the air coming from the air inlet, thereby leading the temperature of the flue gas discharged through the smoke discharge pipe to be lower, being beneficial to environmental protection, and simultaneously heating the air coming from the air inlet, thereby improving the utility model discloses a utilization rate of heat, the waste of heat is avoided, in the process, fine carbon ash smoke dust carried in the smoke falls down and deposits in the ash receiving chamber in the smoke exhaust process, and the utility model can be cleaned regularly only through a slag cleaning port, an ash cleaning port and an ignition port;

and because combustion chamber, shell and tube heat exchanger, connect the ash chamber and discharge fume the position relation between the pipe for the flue gas circulation that produces in the combustion chamber meanders to the distance of discharging fume the pipe, thereby not only can make the heat that carries in the flue gas stay as far as possible in the stove room, with the improvement the utility model discloses to thermal utilization ratio, can make the dust that carries in the flue gas fall into as much as possible in connecing the ash chamber in addition, consequently the utility model discloses in discharging fume the pipe, the dust that contains is less, is favorable to environmental protection.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a side view of the internal structure of a coal-fired warm air furnace of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is a front view of the internal structure of a coal-fired warm air furnace according to the present invention;

fig. 4 is a rear view of the internal structure of a coal-fired warm air furnace according to the present invention;

fig. 5 is a top view of the internal structure of a coal-fired warm air furnace according to the present invention;

fig. 6 is a side view of an external structure of a coal-fired warm air furnace according to the present invention;

fig. 7 is a front view showing an external structure of a coal-fired warm air furnace according to the present invention;

fig. 8 is a rear view of the external structure of the coal-fired warm air furnace of the present invention.

Wherein, 1-furnace chamber; 11-a combustion chamber; 12-a crushed charcoal collection chamber; 13-a carbon residue collection chamber; 14-a gas flow-through chamber; 15-ash receiving chamber; 16-a storage bin; 17-a foraminous assembly; 18-a smoke exhaust pipe; 110-a viewing port; 120-an ignition port; 130-slag removal port; 150-ash removal; 111-hot air outlet; 161-a feed port; 162-a discharge port; 181-smoke exhaust machine; 2-a feeder; 21-a motor; 22-a material pushing plate; 23-a slider-crank mechanism; 171-a pallet; 170-a first limit groove; 172-a support plate; 180-a second limit groove; 173-fine-toothed comb; 121-air supplement opening; 140-air inlet; 3-a blower; 4-a shell and tube heat exchanger; 5-a blast channel; 182-a heat dissipation wane; 112-a heat sink; 6-a controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment of the utility model discloses coal-fired formula warm braw stove, include:

the furnace comprises a furnace room 1, wherein a combustion chamber 11, a crushed carbon collecting chamber 12, a carbon slag collecting chamber 13, a gas circulation chamber 14 and an ash receiving chamber 15 are respectively arranged in the furnace room 1; the combustion chamber 11 is communicated with a bin 16, the combustion chamber 11 is communicated with a crushed carbon collection chamber 12 and a carbon residue collection chamber 13 respectively, the crushed carbon collection chamber 12 is connected with the carbon residue collection chamber 13, the communication position of the combustion chamber 11 and the crushed carbon collection chamber 12 is blocked by a perforated assembly 17, one end of the perforated assembly 17 extends to the communication position of the bin 16 and the combustion chamber 11, and the other end of the perforated assembly 17 extends to the communication position of the combustion chamber 11 and the carbon residue collection chamber 13; the ash receiving chamber 15 and the combustion chamber 11 are on the same horizontal line, the gas circulation chamber 14 is positioned at the tops of the ash receiving chamber 15 and the combustion chamber 11, meanwhile, the ash receiving chamber 15 is communicated with a smoke exhaust pipe 18, and the smoke exhaust pipe 18 and the combustion chamber 11 are respectively positioned at two opposite sides of the ash receiving chamber 15;

an air inlet 140 communicated with the gas circulation chamber 14 is formed in the top end of the furnace chamber 1, an air blower 3 is communicated on the air inlet 140, a tubular heat exchanger 4 is fixed in the gas circulation chamber 14, pipe orifices at the bottom end of the tubular heat exchanger 4 are arranged and blocked at the communicated position of the combustion chamber 11 and the gas circulation chamber 14, and are arranged and blocked at the communicated position of the ash receiving chamber 15 and the gas circulation chamber 14, hot gas in the combustion chamber 11 enters the tubular heat exchanger 4 for heat exchange through a corresponding pipe orifice at the bottom end of the tubular heat exchanger 4, the gas after heat exchange enters the ash receiving chamber 15 through a pipe orifice at the bottom end of the tubular heat exchanger 4 corresponding to the ash receiving chamber 15, a smoke exhaust pipe 18 is positioned in the gas circulation chamber 14, an air blast passage 5 is formed between the periphery of the tubular heat exchanger 4 and the inner wall of the gas circulation chamber 14, and the air blast passage 5 is respectively communicated with the combustion chamber 11, the crushed carbon collection chamber 12 and the carbon residue collection chamber 13, The ash receiving chamber 15 is connected with the smoke exhaust pipe 18 in a closed way, and the air introduced by the blower 3 circulates in the blast duct 5;

the wall of the furnace chamber 1 is provided with an observation port 110 corresponding to the combustion chamber 11, the wall of the furnace chamber 1 is provided with an ignition port 120 communicated with the crushed carbon collection chamber 12, a slag removal port 130 communicated with the carbon slag collection chamber 13 and an ash removal port 150 communicated with the ash receiving chamber 15, and the wall of the furnace chamber 1 is provided with a hot air outlet 111.

The fuel in the storage bin 16 of the utility model enters the combustion chamber 11 to be combusted, in the process, fine carbon slag falls in the broken carbon collecting chamber 12 through the holes on the assembly parts 17 with holes, and large particle carbon ash falls in the carbon slag collecting chamber 13, thereby being beneficial to the full combustion of the fuel, and reducing the production of pollutants and dust, meanwhile, the hot flue gas coming out of the combustion chamber 11 of the utility model firstly enters the tubular heat exchanger 4, and simultaneously, the air blown in by the air blower 3 through the air inlet 140 circulates in the air duct 5 and collides with the outer wall of the tubular heat exchanger 4, so that the tubular heat exchanger 4 can exchange heat between the hot flue gas coming from the combustion chamber 11 and the air coming from the air inlet 140, thereby the temperature of the flue gas discharged through the exhaust pipe 18 is lower, being beneficial to environmental protection, and simultaneously heating the air coming from the air inlet 140, thereby improving the utilization rate of heat, avoiding heat waste, and in the process, the fine carbon ash smoke carried in the smoke will fall down and deposit in the ash receiving chamber 15 in the smoke discharging process, and only the utility model needs to be cleaned regularly through the slag cleaning port 130, the ash cleaning port 150 and the ignition port 120;

and because combustion chamber 11, shell and tube heat exchanger 4, connect ash chamber 15 and the position relation between the pipe 18 of discharging fume for the flue gas circulation that produces in the combustion chamber 11 meanders to the distance of the pipe 18 of discharging fume, thereby not only can make the heat that carries in the flue gas stay as far as in stove room 1, in order to improve the utility model discloses to thermal utilization ratio, can make the dust that carries in the flue gas fall into as much as possible in connecing ash chamber 15 moreover, consequently the utility model discloses in the flue gas of discharging fume in the pipe 18 of discharging fume, the dust that contains is less, is favorable to environmental protection.

In order to further optimize the technical scheme, a first mounting port is opened at the top end of the furnace chamber 1, two opposite ends of the bin 16 are respectively a feeding port 161 and a discharging port 162, the bin 16 is fixed in the furnace chamber 1, the feeding port 161 penetrates through the first mounting port and is located outside the furnace chamber 1, the discharging port 162 is communicated with the combustion chamber 11, and meanwhile, the inner wall of the bin 16 is inclined and gradually inclines towards the combustion chamber 11 from one end far away from the discharging port 162 to one end close to the discharging port 162.

The utility model discloses inlet port 161 is last, discharge port 162 is under, and material port 161 is located outside the stove room 1, then be convenient for through inlet port 161 to supplementary fuel in the feed bin 16, and because fuel has gravity, simultaneously the inner wall of feed bin 16 from the one end of keeping away from discharge port 162 to the direction slope to combustion chamber 11 near discharge port 162 one end gradually, then fuel can get into to combustion chamber 11 through discharge port 162 automatically in, with the effect that can continuously burn in realizing combustion chamber 11, need not the manual work simultaneously and dial the material.

In order to further optimize the technical scheme, the top end of the furnace room 1 is provided with a second mounting port, two opposite ends of the smoke exhaust pipe 18 are respectively provided with a smoke inlet port and a smoke exhaust port, the smoke exhaust pipe 18 is fixed in the furnace room 1, the smoke inlet port is communicated with the ash receiving chamber 15, the smoke exhaust port penetrates through the second mounting port and is located outside the furnace room 1, and the smoke exhaust port is communicated with a smoke exhaust machine 181.

The utility model discloses a switch-on has smoke ventilator 181 on the port of discharging fume of the pipe 18 of discharging fume, can improve the utility model discloses a smoke exhaust efficiency.

In order to further optimize the above technical solution, a feeder 2 is disposed at a connection position of the discharge port 162 and the combustion chamber 11, and the feeder 2 is located at the top of the perforated assembly 17.

The utility model discloses a feeder 2 sends into the fuel of discharge port 162 department to combustion chamber 11 in, then can make the fuel equivalent that gets into in the combustion chamber 11, last and stable to can the homogeneous combustion, the temperature fluctuation is little, then output temperature is stable, and the while burning slagging scorification is few, then when fuel is blue charcoal granule, can also reduce the problem that the burning produces the coking.

In order to further optimize above-mentioned technical scheme, the feed bin 16 has been seted up the through-hole on being close to the lateral wall of discharge port 162 department, and feeder 2 includes:

the motor 21, the motor 21 is fixed on the outer wall of the stock bin 16;

the material pushing plate 22 is positioned on the assembly 17 with the hole, one end of the material pushing plate 22 is connected with a slider-crank mechanism 23, the slider-crank mechanism 23 penetrates through the through hole to be connected to an output shaft of the motor 21, and the motor 21 can reciprocate on the assembly 17 with the hole through the slider-crank mechanism 23.

The utility model discloses a motor 21 drive slider-crank mechanism 23 action, then slider-crank mechanism 23 can turn into the reciprocal rectilinear movement of scraping wings 22 with the rotation of motor 21 output shaft to scraping wings 22 can realize in the material propelling movement that comes out discharge port 162 to combustion chamber 11, simultaneously at this in-process, foraminiferous sub-assembly 17 is bearing the fuel all the time, and scraping wings 22 is at the in-process of propelling movement fuel, can also push into to charcoal sediment collection chamber 13 in the same direction as the area with the remaining large granule charcoal ash of burning on the sub-assembly 17 of perforation.

In order to further optimize the above solution, the perforated assembly 17 comprises:

one end of the supporting plate 171 is fixed on the inner wall of the furnace chamber 1 close to the discharge port 162, the other end of the supporting plate 171 extends to the connection position of the combustion chamber 11 and the crushed carbon collection chamber 12, and a first limiting groove 170 is formed in the end part of the supporting plate 171 located at the connection position of the combustion chamber 11 and the crushed carbon collection chamber 12;

the supporting plate 172 is fixed at the joint of the crushed carbon collecting chamber 12 and the carbon residue collecting chamber 13, and a second limiting groove 180 is formed in one end, close to the combustion chamber 11, of the supporting plate 172;

the perforated strainer 173 is positioned between the support plate 171 and the support plate 172, two ends of the perforated strainer 173 are embedded in the first limiting groove 170 and the second limiting groove 180 in a one-to-one correspondence manner, and a plurality of holes are formed in the perforated strainer 173.

The utility model supports the grate 173 together by the supporting plate 172 and the supporting plate 171, and the two ends of the grate 173 are embedded in the first limiting groove 170 and the second limiting groove 180 in a one-to-one correspondence manner, so that after the fuel is burnt on the grate 173 to generate coke, the pushing plate 22 collides with the grate 173 in the pushing process, and the coke breaking effect can be achieved; the fine char residue and the smaller crushed coke particles on the grate 173 of the fuel can fall into the crushed char collection chamber 12 through the plurality of pores on the grate 173, and the larger crushed coke particles can fall into the char residue collection chamber 13 along with the pushing of the material pushing plate 22.

In order to further optimize the above technical solution, the supporting plate 171 and the supporting plate 172 of the present invention are steel plates, and the grate 173 is made of cast iron.

In order to further optimize the technical scheme, the supporting plate 171 and the grate 173 are obliquely arranged, and the supporting plate 171 and the grate 173 are gradually inclined towards the bottom end of the carbon residue collecting chamber 13 from the position close to the discharge port 162 to the position close to the carbon residue collecting chamber 13.

The utility model discloses layer board 171 and grate 173 all incline to set up, then be convenient for make the large granule charcoal ash that fuel burning produced drop in charcoal sediment collection chamber 13.

In order to further optimize the above technical solution, the sidewall of the crushed carbon collecting chamber 12 is provided with an air supply opening 121.

The utility model can ensure that the air enters the combustion chamber 11 through the crushed coal collecting chamber 12 through the air supply port 121, thereby ensuring that the fuel can be fully combusted in the combustion chamber 11, and simultaneously, a gas ascending channel with a certain angle is formed between the air supply port 121 and the smoke exhaust pipe 18, and the smoke is exhausted out of the furnace room 1 and can be carried out smoothly without wind resistance and pressure reduction, and the smoke exhaust path is smoother;

and, the utility model discloses set up air supplement port 121 on the lateral wall of garrulous charcoal collection chamber 12, then can make garrulous charcoal collection chamber 12 play the effect of static pressure to guarantee that the wind that comes from air supplement port 121 can stably enter into to combustion chamber 11 through garrulous charcoal collection chamber 12.

In order to further optimize the technical scheme, the number of the heat exchange tubes (called downward heat exchange tubes for convenience of description) of the tube type tube and tube heat exchanger corresponding to the ash receiving chamber 15 is 5 times that of the heat exchange tubes (called upward heat exchange tubes for convenience of description) corresponding to the combustion chamber 11.

The utility model discloses a steam if go upward the heat exchange tube with 600 degrees entering, decompose into 120 degrees through the descending heat exchange tube of 5 times in the twinkling of an eye, then can improve convection heat transfer's efficiency.

In order to further optimize the above technical solution, a heat dissipation fin 182 is fixed on the outer wall of the smoke exhaust pipe 18.

The utility model discloses a heat dissipation wane 182 for make the air that flows absorb more heat energy in stove room 1 inside.

In order to further optimize the technical scheme, the device further comprises a controller 6, and the controller 6 is respectively and electrically connected with the motor 21, the blower 3 and the smoke exhaust 181.

Example 1:

the embodiment of the utility model discloses coal-fired warm air furnace, the theory of operation as follows:

the fuel (semi-coke particles) is supplemented into the bin 16 through the feeding port 161, and because the fuel has gravity, and meanwhile, the inner wall of the bin 16 gradually inclines towards the combustion chamber 11 from the end far away from the discharging port 162 to the end close to the discharging port 162, the fuel can automatically flow out through the discharging port 162;

turning on the motor 21, and enabling the motor 21 to drive the slider-crank mechanism 23 to act, so that the slider-crank mechanism 23 drives the material-pushing plate 22 to convey the material at the material outlet 162 to the perforated assembly 17 in the combustion chamber 11;

igniting through the ignition port 120 to burn the fuel on the perforated assembly 17, and simultaneously starting the smoke exhaust 181 and the blower 3;

in the process that fuel (semi-coke particles) is combusted in the combustion chamber 11, fine carbon slag falls into the broken carbon collecting chamber 12 through the pores on the porous assembly 17, large carbon ash falls into the carbon slag collecting chamber 13, so that the fuel can be combusted fully, the generation amount of pollutants and dust can be reduced, hot gas in the combustion chamber 11 enters the tubular heat exchanger 4 through the bottom end pipe orifice of the corresponding tubular heat exchanger 4, and because air blown by the air blower 3 through the air inlet 140 circulates in the blast duct 5 and collides with the tubular heat exchanger 4, the tubular heat exchanger 4 can exchange heat between hot flue gas from the combustion chamber 11 and air from the air inlet 140, the flue gas after heat exchange and temperature reduction enters the ash receiving chamber 15 through the bottom end pipe orifice of the tubular heat exchanger 4 corresponding to the ash receiving chamber 15 and is finally discharged through the smoke discharge pipe 18, meanwhile, the tubular heat exchanger 4 heats the air from the air inlet 140, so that the heated air can flow into the hot air outlet 111 and then be discharged, thereby improving the utilization rate of heat and avoiding heat waste; in the process, the dust receiving chamber 15 is arranged below the tubular heat exchanger 4 and the smoke exhaust pipe 18, and the tubular heat exchanger 4 is fixed in the gas circulation chamber 14, so that dust carried in the smoke can fall into the dust receiving chamber 15 in the process that the smoke passes through the tubular heat exchanger 4 and the smoke exhaust pipe 18;

and finally, regularly cleaning large-particle carbon ash accumulated in the carbon residue collection chamber 13 through the slag cleaning port 130, cleaning dust accumulated in the ash receiving chamber 15 through the ash cleaning port 150, and cleaning fine carbon residue accumulated in the crushed carbon collection chamber 12 through the ignition port 120.

The utility model discloses at the in-process of burning, the heat that produces in the combustion chamber 11 is discharged through hot air outlet 111.

Moreover, the utility model can make the wind enter the combustion chamber 11 through the crushed coal collecting chamber 12 through the air supply opening 121, thereby ensuring that the fuel can be fully combusted in the combustion chamber 11, and simultaneously forming a gas ascending channel with a certain angle between the air supply opening 121 and the smoke exhaust pipe 18, discharging the smoke out of the furnace room 1, and the smoke can be carried out smoothly without wind resistance and pressure reduction, and the smoke exhaust path is smoother; and the utility model discloses set up air supply opening 121 on the lateral wall of garrulous charcoal collection chamber 12, then can make garrulous charcoal collection chamber 12 play the effect of static pressure to guarantee that the wind that comes from air supply opening 121 can stably get into to combustion chamber 11 through garrulous charcoal collection chamber 12.

Meanwhile, during combustion, the combustion condition in the combustion chamber 11 can be observed through the observation port 110.

Further: the utility model supports the grate 173 together by the supporting plate 172 and the supporting plate 171, and the two ends of the grate 173 are embedded in the first limiting groove 170 and the second limiting groove 180 in a one-to-one correspondence manner, so that after the fuel is burnt on the grate 173 to generate coke, the pushing plate 22 collides with the grate 173 in the pushing process, and the coke breaking effect can be achieved; the fine char residue and the smaller crushed coke particles on the grate 173 of the fuel can fall into the crushed char collection chamber 12 through the plurality of pores on the grate 173, and the larger crushed coke particles can fall into the char residue collection chamber 13 along with the pushing of the material pushing plate 22.

The utility model discloses a viewing port 110; an ignition port 120; a slag removal port 130; a dust removal port 150; the inlet ports 162 may each have a protective door that can be opened and closed.

The utility model discloses a blue charcoal is as fuel, because the characteristic of blue charcoal self, blue charcoal has lacked inflammable tar and volatile, and burn out time is long, and the required amount of blue charcoal still less under the equal heat condition of release is proved through the experiment, and the heating cost is cheap more. Also avoids the explosion accident caused by improper use of the gas warm air furnace.

The tube type heat exchanger 4 of the utility model is fixed in the gas circulation chamber 14, and forms a blast passage 5 with the inner wall of the gas circulation chamber 14, thus improving the utilization rate of the space in the furnace room 1;

meanwhile, the utility model can form convection between the hot air in the combustion chamber 11 and the air from the air inlet 140 through the tubular heat exchanger 4, thus solving the problem of low heat utilization rate;

furthermore, the utility model discloses a blast duct 5 respectively with combustion chamber 11, garrulous charcoal collection room 12, charcoal sediment collection room 13, connect ash chamber 15 and the 18 closed connections of exhaust pipe, then avoid blast duct 5 to influence the utility model discloses a gas exhaust system (mend wind gap 121, garrulous charcoal collection room 12, combustion chamber 11, the intraductal gas flow passageway of shell and tube heat exchanger 4 (in basic technical scheme, here is gas flow room 14), connect ash chamber 15 and exhaust pipe 18).

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A coal-fired warm air furnace, comprising:

the furnace comprises a furnace room (1), wherein a combustion chamber (11), a broken carbon collecting chamber (12), a carbon slag collecting chamber (13), a gas circulation chamber (14) and an ash receiving chamber (15) are respectively arranged in the furnace room (1); the combustion chamber (11) is communicated with a bin (16), the combustion chamber (11) is communicated with the broken carbon collection chamber (12) and the carbon residue collection chamber (13) respectively, the broken carbon collection chamber (12) is connected with the carbon residue collection chamber (13), the connection position of the combustion chamber (11) and the broken carbon collection chamber (12) is blocked by a perforated assembly (17), one end of the perforated assembly (17) extends to the connection position of the bin (16) and the combustion chamber (11), and the other end of the perforated assembly extends to the connection position of the combustion chamber (11) and the carbon residue collection chamber (13); the ash receiving chamber (15) and the combustion chamber (11) are on the same horizontal line, the gas circulation chamber (14) is positioned at the tops of the ash receiving chamber (15) and the combustion chamber (11), meanwhile, the ash receiving chamber (15) is communicated with a smoke exhaust pipe (18), and the smoke exhaust pipe (18) and the combustion chamber (11) are respectively arranged at two opposite sides of the ash receiving chamber (15);

an air inlet (140) communicated with the gas circulation chamber (14) is formed in the top end of the furnace chamber (1), an air blower (3) is communicated with the air inlet (140), a tubular heat exchanger (4) is fixed in the gas circulation chamber (14), pipe orifices at the bottom end of the tubular heat exchanger (4) are arranged and blocked at the communication position of the combustion chamber (11) and the gas circulation chamber (14) and at the communication position of the ash receiving chamber (15) and the gas circulation chamber (14), hot air in the combustion chamber (11) enters the tubular heat exchanger (4) through the corresponding bottom pipe orifice of the tubular heat exchanger (4) for heat exchange, the gas after heat exchange enters the ash receiving chamber (15) through the corresponding bottom pipe orifice of the tubular heat exchanger (4) of the ash receiving chamber (15), and the smoke exhaust pipe (18) is located in the gas circulation chamber (14), a blast channel (5) is formed between the periphery of the shell and tube heat exchanger (4) and the inner wall of the gas circulation chamber (14), the blast channel (5) is respectively in closed connection with the combustion chamber (11), the crushed carbon collection chamber (12), the carbon residue collection chamber (13), the ash receiving chamber (15) and the smoke discharge pipe (18), and wind introduced by the blower (3) circulates in the blast channel (5);

correspond on the room wall of furnace room (1) viewing aperture (110) have been seted up in combustion chamber (11), and seted up the switch-on respectively on the room wall of furnace room (1) the ignition mouth (120), the switch-on of garrulous charcoal collection room (12) cinder notch (130) and the switch-on of charcoal sediment collection room (13) connect deashing mouth (150) of ash room (15), simultaneously hot air outlet (111) have been seted up on the room wall of furnace room (1).

2. The coal-fired warm air furnace according to claim 1, characterized in that a first mounting opening is opened at the top end of the furnace chamber (1), the two opposite ends of the bin (16) are respectively a feeding port (161) and a discharging port (162), the bin (16) is fixed in the furnace chamber (1), the feeding port (161) penetrates through the first mounting opening and is located outside the furnace chamber (1), the discharging port (162) is communicated with the combustion chamber (11), and simultaneously the inner wall of the bin (16) is inclined and gradually inclined towards the combustion chamber (11) from the end far away from the discharging port (162) to the end near the discharging port (162).

3. The coal-fired warm air furnace as claimed in claim 1, characterized in that a second mounting port is opened at the top end of the furnace chamber (1), the two opposite ends of the smoke exhaust pipe (18) are respectively a smoke inlet port and a smoke exhaust port, the smoke exhaust pipe (18) is fixed in the furnace chamber (1), the smoke inlet port is communicated with the ash receiving chamber (15), the smoke exhaust port passes through the second mounting port and is located outside the furnace chamber (1), and a smoke exhaust machine (181) is communicated with the smoke exhaust port.

4. The coal-fired warm air furnace according to claim 2, characterized in that a feeder (2) is arranged at the connection of the discharge port (162) and the combustion chamber (11), and the feeder (2) is positioned at the top of the perforated assembly (17).

5. The coal-fired warm air furnace according to claim 4, wherein the bin (16) is provided with a through hole on a side wall near the discharge port (162), and the feeder (2) comprises:

the motor (21), the said motor (21) is fixed on the outer wall of the said feed bin (16);

the material pushing plate (22) is located on the assembly with the hole (17), meanwhile, one end of the material pushing plate (22) is connected with a slider-crank mechanism (23), the slider-crank mechanism (23) penetrates through the through hole to be connected to an output shaft of the motor (21), and the motor (21) can reciprocate on the assembly with the hole (17) through the slider-crank mechanism (23).

6. A coal-fired warm air furnace according to claim 5, characterized in that the perforated assembly (17) comprises:

one end of the supporting plate (171) is fixed on the inner wall of the furnace room (1) close to the discharge port (162), the other end of the supporting plate (171) extends to the connection position of the combustion chamber (11) and the crushed carbon collecting chamber (12), and a first limiting groove (170) is formed in the end part of the supporting plate (171) located at the connection position of the combustion chamber (11) and the crushed carbon collecting chamber (12);

the supporting plate (172) is fixed at the joint of the crushed carbon collecting chamber (12) and the carbon slag collecting chamber (13), and a second limiting groove (180) is formed in one end, close to the combustion chamber (11), of the supporting plate (172);

the grate (173) is positioned between the supporting plate (171) and the supporting plate (172), two ends of the grate (173) are embedded in the first limiting groove (170) and the second limiting groove (180) in a one-to-one correspondence mode, and a plurality of holes are formed in the grate (173).

7. The coal-fired warm air furnace as claimed in claim 6, characterized in that the supporting plate (171) and the grate (173) are both obliquely arranged, and the supporting plate (171) and the grate (173) are both gradually inclined toward the bottom end of the carbon residue collecting chamber (13) from the position close to the discharge port (162) to the position close to the carbon residue collecting chamber (13).

8. A coal-fired warm air furnace as claimed in claim 1, wherein the side wall of the crushed carbon collecting chamber (12) is opened with an air supply opening (121).

9. The coal-fired warm air furnace as claimed in claim 1, characterized in that a heat dissipation wane (182) is fixed on the outer wall of the smoke exhaust pipe (18).

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