阅读说明：本技术 一种带有火星湮灭装置的直接供热式生物质热风炉 (Direct heat supply type biomass hot blast stove with spark annihilation device ) 是由 梅丽中 于 2019-10-22 设计创作，主要内容包括：本发明公开了一种带有火星湮灭装置的直接供热式生物质热风炉,包括炉体、风机、除尘装置和烟道,烟道设置于炉体的烟气出口,烟道的出口通过除尘装置后再与风机连接,其特征在于：直接供热式烘干用生物质热风炉还包括火星湮灭装置,火星湮灭装置包括空压机、烟气起旋装置和与空压机连接的喷嘴,炉体的上半部分内腔呈圆台状,且在炉体的上半部设置有二次风补气管,二次风补气管补气的方向与烟气起旋装置的旋转方向一致。本发明相比现有技术具有以下优点：能够有效防止火星随气流夹带,使火星得到有效去除,烟尘去除率高,且处理量大,压降小有效降低气流输送能耗。(The invention discloses a direct heat supply type biomass hot blast stove with a spark annihilation device, which comprises a stove body, a fan, a dust removal device and a flue, wherein the flue is arranged at a flue gas outlet of the stove body, and the outlet of the flue is connected with the fan after passing through the dust removal device, and is characterized in that: the biomass hot blast stove for direct heat supply type drying further comprises a spark annihilation device, the spark annihilation device comprises an air compressor, a smoke rotation starting device and a nozzle connected with the air compressor, an inner cavity of the upper half part of the stove body is in a round table shape, a secondary air supply pipe is arranged at the upper half part of the stove body, and the air supply direction of the secondary air supply pipe is consistent with the rotation direction of the smoke rotation starting device. Compared with the prior art, the invention has the following advantages: can effectively prevent the spark from being carried along with the air flow, effectively remove the spark, has high smoke dust removal rate, large treatment capacity and small pressure drop, and effectively reduces the energy consumption of air flow conveying.)

1. The utility model provides a direct heating formula living beings hot-blast furnace with spark annihilation device, includes furnace body, fan, dust collector and flue, the flue set up in the exhanst gas outlet of furnace body, the export of flue pass through behind the dust collector again with the fan is connected its characterized in that: direct heat supply formula is dried and is used living beings hot-blast furnace still includes mars annihilation device, mars annihilation device includes air compressor machine, flue gas start-up device and the nozzle of being connected with the air compressor machine, the nozzle passes the inboard installation of the directional flue of flue lateral wall, flue gas start-up device installs in nozzle upper reaches one side, the first half inner chamber of furnace body is the round platform form, and is provided with overgrate air supply pipe in the first half of furnace body, overgrate air supply pipe contacts with the furnace body along tangential direction, and the direction of overgrate air supply pipe tonifying qi is unanimous with flue gas start-up device's direction of rotation.

2. The direct-heating biomass hot blast stove with the spark annihilation device of claim 1, wherein: the dust collector is a direct-current dust collector, the direct-current dust collector comprises a cyclone, a set and an exhaust pipe, the cyclone is arranged at the position of a flue outlet, the flue outlet penetrates through a dust collecting sleeve and extends into the dust collecting sleeve, the inlet of the exhaust pipe penetrates through the side wall of the dust collecting sleeve and points to the flue outlet, and the pipe diameter of the inlet of the exhaust pipe is smaller than the pipe diameter of the outlet of the flue.

3. The direct-heating biomass hot blast stove with the spark annihilation device of claim 2, wherein: a conical air guide sleeve is further arranged between the flue outlet and the exhaust pipe daily inlet, the conical air guide sleeve is in a hollow conical shape, and the tip of the top of the conical air guide sleeve points to the flue outlet.

4. The direct-heating biomass hot blast stove with the spark annihilation device of claim 1, wherein: the bottom of the dust collecting sleeve is obliquely arranged, the lowest part of the bottom of the dust collecting cover is provided with an ash pipe, and the outlet of the ash pipe is communicated with the ash chamber of the furnace body through an ash conveying auger.

5. The direct-heating biomass hot blast stove with the spark annihilation device of claim 1, wherein: the biomass hot blast stove for direct heat supply type drying further comprises an air mixing box and a hot air cover, the stove body, the dust removal device and the flue are all arranged in the hot air cover, an air inlet and an air outlet are formed in the hot air cover, the air outlet and the air flow outlet of the dust removal device are all communicated with the air mixing box, a cold air inlet and an air mixing outlet are further formed in the air mixing box, and the air mixing outlet is connected with the fan.

6. The direct-heating biomass hot blast stove with the spark annihilation device of claim 5, wherein: the air mixing outlet is arranged at the top of the air mixing box, the air outlet and the airflow outlet of the dust removal device are both communicated to the bottom of the air mixing box, and a baffle plate is further arranged in the air mixing box.

7. The direct-heating biomass hot blast stove with the spark annihilation device of claim 1, wherein: an ash discharging auger is arranged in the ash chamber at the bottom of the furnace body.

Technical Field

The invention relates to the field of biomass boilers, in particular to a direct heat supply type biomass hot blast stove with a spark annihilation device.

Background

When biomass is used as fuel, because the fuel texture is loose, sparks are easily generated in the combustion process and are conveyed to the downstream along with smoke, so that great potential safety hazard is caused in the use process, almost all sparks need to be subjected to heat exchange through a heat exchanger when inflammable materials are dried, and accordingly spark isolation is guaranteed. This scheme ensures that the spark can obtain effectual breakage and complete combustion through designing the spark annihilation device, makes the flue gas directly send to the needs department after removing dust again, and energy utilization efficiency is high, practices thrift manufacturing and maintenance cost.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a direct heat supply type biomass hot blast stove with a spark annihilation device.

The invention is realized by the following technical scheme: the utility model provides a direct heating formula living beings hot-blast furnace with spark annihilation device, includes furnace body, fan, dust collector and flue, and the flue sets up in the exhanst gas outlet of furnace body, and the export of flue is connected its characterized in that with the fan after passing through dust collector again: direct heat supply formula is dried and is used living beings hot-blast furnace still includes mars annihilation device, mars annihilation device includes the air compressor machine, flue gas start-up device and the nozzle of being connected with the air compressor machine, the nozzle passes the inboard installation of the directional flue of flue lateral wall, flue gas start-up device installs in nozzle upstream one side, the first half inner chamber of furnace body is the round platform form, and be provided with overgrate air supply pipe in the first half of furnace body, overgrate air supply pipe contacts with the furnace body along tangential direction, the direction of overgrate air supply pipe tonifying qi is unanimous with flue gas start-up device's direction of.

As a further improvement of the scheme, the dust removal device is a direct-current dust remover, the direct-current dust remover comprises a cyclone, a collection set and an exhaust pipe, the cyclone is arranged at the outlet of the flue, the outlet of the flue penetrates through the dust collection sleeve and extends into the dust collection sleeve, the inlet of the exhaust pipe penetrates through the side wall of the dust collection sleeve and points to the outlet of the flue, and the pipe diameter of the inlet of the exhaust pipe is smaller than the pipe diameter of the outlet of the flue.

As a further improvement of the scheme, a conical flow guide cover is further arranged between the flue outlet and the exhaust pipe daily inlet, the conical flow guide cover is in a hollow conical shape, and the tip of the top of the conical flow guide cover points to the flue outlet.

As a further improvement to the proposal, the bottom of the dust collecting sleeve is obliquely arranged, the lowest part of the bottom of the dust collecting cover is provided with an ash pipe, and the outlet of the ash pipe is communicated with the ash chamber of the furnace body through an ash conveying auger.

As a further improvement to the above scheme, the direct heat supply type biomass hot blast stove for drying further comprises an air mixing box and a hot air cover, wherein the stove body, the dust removal device and the flue are arranged in the hot air cover, an air inlet and an air outlet are formed in the hot air cover, the air outlet and the air outlet of the dust removal device are communicated with the air mixing box, a cold air inlet and an air mixing outlet are also formed in the air mixing box, and the air mixing outlet is connected with the fan.

As a further improvement to the above scheme, the air mixing outlet is arranged at the top of the air mixing box, the air outlet and the airflow outlet of the dust removal device are both led to the bottom of the air mixing box, and a baffle plate is further arranged in the air mixing box.

As a further improvement to the proposal, an ash discharging auger is arranged in the ash chamber at the bottom of the furnace body.

Compared with the prior art, the invention has the following advantages: can effectively prevent the spark from being carried along with the air flow, effectively remove the spark, has high smoke dust removal rate, large treatment capacity and small pressure drop, and effectively reduces the energy consumption of air flow conveying.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Detailed Description

The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.

The utility model provides a direct heat supply formula living beings hot-blast furnace with spark annihilation device, includes furnace body 1, fan 7, dust collector and flue 3, and flue 3 sets up in the exhanst gas outlet of furnace body 1, and the export of flue 3 is connected its characterized in that with fan 7 again after passing through dust collector: direct heat supply formula is dried and is used living beings hot-blast furnace still includes mars annihilation device, mars annihilation device includes air compressor machine 21, flue gas rotary device 23 and the nozzle 22 of being connected with air compressor machine 21, nozzle 22 passes 3 lateral walls of flue and points to 3 inboard installations in the flue, flue gas rotary device 23 is installed in nozzle 22 upstream one side, the first half inner chamber of furnace body 1 is the round platform form, and be provided with overgrate air supply pipe 13 in the first half of furnace body 1, overgrate air supply pipe 13 contacts with furnace body 1 along tangential direction, the direction of overgrate air supply pipe 13 tonifying qi is unanimous with flue gas rotary device 23's direction of rotation. The compressed air that the air compressor machine 21 provided is passed through to the mars annihilation device and is followed high-speed blowout in nozzle 22, collide with the flue gas in the flue 3 at a high speed, be the friction striking between particulate matter in the flue gas and the mars, make flue gas and mars broken simultaneously reduce its kinetic energy, let it can fall and obtain the separation, the mars is at broken in-process simultaneously, expose more with the area of contact of oxygen, can accelerate its combustion process, the oxygen of adding in the compressed air, make the mars can obtain effectual annihilation and get rid of. Because compressed air's impact force can be along with the rapid decay of route extension, therefore the effect that the mars at flue 3 center received the impact crushing effect than peripheral mars is poor a lot, therefore we design flue gas rotary device 23 and make the flue gas rotatory in advance, thereby make particulate matter wherein can be got rid of the flue 3 periphery under the effect of centrifugal force, thereby can just receive compressed air's impact in shorter distance, and the granule of big quality can be more close to the edge impact effect that receives better, so guarantee better mars annihilation effect. The flue gas swirling device 23 may be a tangential air supply system or a vane type blade or other device for swirling the gas. The secondary air supplement can promote the burning of the sparks on one hand, and can effectively help the pre-separation of smoke particles by combining with the circular truncated cone-shaped inner cavity structure, thereby reducing the loads of the spark annihilation device and the dust removal device. Meanwhile, the air supplement direction of the secondary air supplement pipe 13 can be consistent with the rotation direction of the smoke rotation starting device 23, so that the rotation path of smoke before entering the spark annihilation device is prolonged, sparks and particles can move towards the pipe wall in sufficient time, and the working effects of the spark annihilation device and the dust removal device are enhanced.

The dust removing device is a direct current dust remover, the direct current dust remover comprises a spinner 41, a set and an exhaust pipe 43, the spinner 41 is arranged at the outlet of the flue 3, the outlet of the flue 3 penetrates through the dust collecting sleeve 42 and extends into the dust collecting sleeve 42, the inlet of the exhaust pipe 43 penetrates through the side wall of the dust collecting sleeve 42 and points to the outlet of the flue 3, and the pipe diameter of the inlet of the exhaust pipe 43 is smaller than the pipe diameter of the outlet of the flue 3. The cyclone 41 rotates the gas flow to separate the particles from the gas, so that the particle content in the gas flow at the center of the pipe is much lower than that at the periphery, and the gas at the center is taken away by the exhaust pipe 43 with a smaller pipe diameter to achieve the purpose of dust removal. In the whole dust removal process, because the secondary vortex that does not utilize traditional cyclone utilizes is not existed, the pressure drop reduces greatly to make the air current of whole process carry energy consumption greatly reduced, in addition, the simple structure of device, the tolerance to high temperature smoke and dust improves greatly.

A conical air guide sleeve 47 is further arranged between the outlet of the flue 3 and the daily inlet of the exhaust pipe 43, the conical air guide sleeve 47 is in a hollow conical shape, and the tip of the top of the conical air guide sleeve 47 points to the outlet of the flue 3. The flue gas completely enters the dust collecting sleeve 42 under the shielding of the conical air guide sleeve 47, so that the situation that some particles in the center of the flue 3 cannot move to the edge to be removed is avoided, the flue gas continuously rotates and moves forwards after entering the dust collecting sleeve 42, the flue gas is discharged by the exhaust pipe 43 after turning over the edge of the conical air guide sleeve 47, the flue gas is conveyed forwards in a rotating mode all the time in the process, and the flue gas is subjected to the friction action with the inner wall of the dust collecting sleeve 42 and the side wall of the conical air guide sleeve 47 and is subjected to multi-stage separation, so that the smoke removal rate is greatly improved.

The bottom of the dust collecting sleeve 42 is obliquely arranged, the lowest part of the bottom of the dust collecting cover is provided with an ash pipe 45, and the outlet of the ash pipe 45 is communicated with an ash chamber of the furnace body 1 through an ash conveying auger 46. The ash conveying auger 46 can ensure that gas at two ends is isolated in the ash conveying process, so that the gas pressure at the two ends is kept unchanged, and the occurrence of gas cross is avoided.

The biomass hot blast stove for direct heat supply type drying further comprises a wind mixing box 6 and a hot wind cover 5, the stove body 1, the dust removal device and the flue 3 are all arranged in the hot wind cover 5, an air inlet 51 and an air outlet 52 are formed in the hot wind cover 5, the air outlet 52 and an air flow outlet 44 of the dust removal device are both communicated with the wind mixing box 6, a cold wind inlet 61 and a wind mixing outlet 62 are further arranged on the wind mixing box 6, and the wind mixing outlet 62 is connected with the fan 7. The hot air cover 5 can recover heat dissipated by the furnace body 1, the dust removal device and the flue 3, and the air mixing box 6 mixes flue gas and cold air after dust removal with hot air recovered by the hot air cover 5, so that energy can be comprehensively utilized, and different hot air requirements can be flexibly met. The hopper 11 of the furnace body 1 is arranged outside the hot air hood 5 and is connected with the furnace body 1 through a feeding flood dragon 12.

The air mixing outlet 62 is arranged at the top of the air mixing box 6, the air outlet 52 and the airflow outlet 44 of the dust removing device are both communicated with the bottom of the air mixing box 6, and a baffle plate is also arranged in the air mixing box 6. The design of the baffle plate can help the three air flows to be fully mixed and exchange heat, so that the quality of the hot air sent out is uniform and stable.

An ash discharging auger 14 is arranged in the ash chamber at the bottom of the furnace body 1. Because the furnace body 1 is operated under negative pressure, in order to ensure the accurate control of the air feeding quantity, the ash discharging auger 14 is used for discharging ash, and the air can be effectively prevented from leaking into the ash chamber.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.