CN212930061U - Straw round bag automatic feeding device capable of being used for flue gas dust removal and straw drying simultaneously - Google Patents

Abstract

The invention discloses an automatic feeding device of a round straw bag, which can be used for flue gas dust removal and straw drying at the same time, and the device enables the round straw bag (8) to realize continuous drying in a round straw bag dust removal and drying feeding bin (4) by utilizing hot air or waste heat flue gas from a combustion system (1) or other sources, and the waste heat flue gas realizes dust removal and purification through the round straw bag (8) at the same time. The straw round bag (8) is put into and transported to a second straw round bag transporting device (14) at the rear part from a first straw round bag transporting device (13) at the front part, drying and flue gas dust removal are completed on an air blowing opening (28), the dried straw round bag enters the straw round bag through a straw round bag locking bin (3) and is pushed into a storage bin (2), and finally the straw round bag is sent into a combustion system (1). The new round straw bales are reloaded through a round straw bale dedusting and drying feeding bin (4) which is provided with two pivoting doors, is connected with a round straw bale locking bin (3) and comprises two round straw bale conveying devices.

Description

Straw round bag automatic feeding device capable of being used for flue gas dust removal and straw drying simultaneously

Technical Field

The utility model relates to an automatic feeding device for biomass boiler combustion system provides fuel, through blowing the round package of straw with used heat flue gas and then dry them, the round package of straw also becomes used heat flue gas dust filter simultaneously, goes up the feed bin and has integrated the flue gas circulation in the middle of with dust removal function.

Background

Patent CN202010263152.6 describes that when the waste heat flue gas from the combustion system is used to dry whole bundles of crop stalks, the dust content in the waste heat flue gas can be significantly reduced. However, such low cost solutions do not allow continuous operation and the frequent use of equipment with front loaders to transport straw bales is prohibitively expensive for large thermodynamic systems.

Patent CN201811060698.0 proposes a combustion system using a sealed feeding bin, where although the sealing can prevent the feeding bin from backfiring, hot air or waste heat flue gas cannot be continuously blown to take away the moisture in the straw round bag and achieve drying.

When the round straw bags are placed on the chain, the positions of the round straw bags cannot be corrected in the moving direction of the round straw bags, the packages of the round straw bags are easily damaged, the feeding bin can be slightly lifted by an angle, and otherwise, the round straw bags roll in the forward direction.

According to patent CN201811060698.0, when adding new round bales of straw, the filler door needs to be opened and air will be sucked into the upper bin and possibly into the combustion chamber, which will change the combustion process, so that the addition of round bales of straw must be completed quickly in as short a time as possible, and as soon as the pool is poor, there is a possibility of causing deflagration and other secondary safety problems, which is even more unacceptable for large thermodynamic systems with higher requirements for constant gas output.

According to the technical method disclosed in patent CN201811060698.0, the filled upper bin may not be able to quickly stop the unexpected combustion of fuel in the upper bin, and at present, no technical solution for simultaneously drying and dedusting straw bales continuously by using waste flue gas is available.

Disclosure of Invention

The utility model aims at providing a through the last feed bin that changes combustion system to even go up the feed bin and also can let unexpected, go up the fuel burning in the feed bin and stop rapidly in the short time when filling with the straw circle package. The combustion air no longer uncontrolled gets into the combustion chamber, the flue gas of combustion chamber also no longer gets into the feed bin, and operating personnel can add the straw circle package from the outside under the condition of no time pressure. The feeding bin can automatically operate for a long time under the condition of no manual support, the straw round bag can be dried through waste heat flue gas and realize dust removal of the waste heat flue gas, and accumulated dust in the feeding bin can be timely treated.

According to the utility model discloses, design one kind through be connected with the locking storehouse of straw circle package with the push feed bin of straw circle package feeding to combustion system and one through introducing hot-blast or the last feed bin that waste heat flue gas realized that the dry and waste flue gas of straw circle package removes dust.

The push-in bin comprises a common sliding shield and a conveying chain connected with the sliding shield, the straw round bag is upwards conveyed into the combustion system through the push-in bin, the combustion system is downwards inclined, so that fuel can downwards move only by means of gravity under the condition that no conveying device exists, and the straw round bag is pushed into the bin and is upwards lifted to a certain height. Thus only the foremost end of the push-in loading bin is heated by the combustion system, this heated part being provided with a water jacket and a ceramic lining.

When another round straw bag needs to be added into the pushing bin, the added round straw bag falls into the sliding shield when the sliding shield is positioned at the lower station; this sliding shield can also be parked in the middle and upper stations.

A round straw bale retaining device is arranged at the top of the pushing bin, so that when the sliding shield moves backwards, the round straw bales can be prevented from rolling backwards at the same time. A round straw bale grabbing area is designed at the top of the sliding shield, so that the straw can only move minimally when falling from the upper side. A round straw bale locking bin is arranged at the top of the push-in bin, and round straw bales can fall on a bottom plate of the round straw bale locking bin completely by means of gravity

The inlet and the outlet of the straw round bale locking bin are respectively pushed into the storage bin and the straw round bale dedusting and drying feeding bin towards the straw round bales, the inlet and the outlet are respectively locked by a pivoting door, and the locked pivoting doors are provided with sealing pieces to ensure the sealing property.

A straw round bag supporting device which can be controlled externally is arranged in the straw round bag locking bin and can fix the straw round bag in the straw round bag locking bin to be positioned at a waiting station. At least one of the two doors of the straw round bale locking bin is always in a closed state, so that the uncontrolled air flow can be prevented from entering.

The top of the straw round bag dedusting and drying feeding bin is connected with a straw round bag locking bin, and the length of the dedusting and drying feeding bin can be adjusted as required. When the straw round bag is left in the dedusting and drying feeding bin, the straw round bag is blown by waste heat flue gas, so that the drying of the straw round bag and the dedusting of the waste heat flue gas are realized. The hot flue gas distribution channel is arranged in the dedusting and drying feeding bin of the round straw bag, blowing openings are arranged in the hot flue gas distribution channel at equal intervals, and waste heat flue gas or hot air is blown into the round straw bag under pressure through the blowing openings.

In order to realize enough sealing between the air blowing opening and the round straw bag, continuous slide rails are arranged above and below the air blowing opening and on the opposite side, and the distance from the slide rails to the round straw bag and the contact pressure are adjustable. The round straw bag is positioned and lightly pressed on the air blowing opening in the mode, so that the required sealing is ensured, and the round straw bag conveying device can generate the pressure required by the slight shaping of the round straw bag.

The straw round bag conveying device is composed of a common annular chain, a driving wheel, a supporting wheel and the like, and supporting pipes are connected to the two chains at equal intervals. Round bales are placed on them at right angles to the direction of transport and aligned by means of continuous sliding rails. The supporting pipes are connected to the endless chain through the supporting plate so as to prevent the supporting pipes from falling over to the maximum.

The dust accumulated at the bottom of the straw round bag dedusting and drying feeding bin can be conveyed to the dust collection chamber through the scraper, and the scraper is connected by an annular chain to keep the station of the scraper.

In order to ensure that a new round straw bag can be added into the dedusting and drying feeding bin at any time and a round straw bag is always kept before all blowing holes, the conveying device of the utility model is designed to be composed of a front part and a rear part. The first conveyor part at the front part is not provided with a hot smoke distribution channel, and the first conveyor part is only a straw round bag conveyor with independent drive and control, so that a new straw round bag can be added from the outside at any time. The front and the rear round straw bag conveying devices are kept synchronous during automatic operation, and round straw bags are transferred from the first round straw bag conveying device at the front part to the second round straw bag conveying device at the rear part, which is provided with a hot flue gas distribution channel.

In order to send the round straw bales into the round straw bale locking bin from the dedusting and drying feeding bin, all the round straw bales can be conveyed to the next nearest blowing opening to obtain waste heat flue gas or hot air. The periodic synchronous operation of the two round straw bag conveying devices is realized by means of two position sensors, each position sensor is used for one round straw bag conveying device, and the synchronous error of the two round straw bag conveying devices is corrected at any time.

In the conventional automatic operation, the straw round bag pushing bin, the straw round bag locking bin and the straw round bag dedusting and drying feeding bin are all in a micro-negative pressure state, and all doors and an outer driving shaft are sealed. The gas in the storage bin can not be diffused to the outside, and the outside air can not enter all the storage bins.

The modules described above jointly form an automatic straw round bale feeding device capable of simultaneously meeting the requirements of straw round bale drying and waste flue gas dust removal.

Drawings

Fig. 1 shows a combustion system (1) in a side view, which has a straw bale pushing silo (2) and a straw bale locking silo (3), and part of the structure is omitted in the figure.

Figure 2 shows the straw bale dedusting and drying loading bin (4) in a side sectional view.

Fig. 3 shows the dust-removing drying feeding bin (4) for the round bale of straw in a cross-sectional view.

Fig. 4 shows a part of the straw bale dedusting and drying feeding bin (4) in a side sectional view.

Fig. 5 shows the connection of the support tube (18).

Fig. 6 shows the design and arrangement of the scrapers (21).

Fig. 7 shows the elastic connection of the slide (30).

In the figure: 1-combustion system, 2-pushing of round straw bales into a silo, 3-locking of round straw bales, 4-dedusting and drying of round straw bales into a silo, 5-conveying chain, 6-sliding shield, 7-holding of round straw bales, 8-round straw bales, 9-first pivoting door, 10-seal, 11-second pivoting door, 12-round straw bale support device, 13-first round straw bale transport device, 14-second round straw bale transport device, 15-endless chain, 16-drive wheel, 17-warm support wheel, 18-support tube, 19-filler door, 20-base plate, 21-scraper, 22-dust collection chamber, 23-lock, 24-rolling shaft, 25-gear motor, 26-hot flue gas channel, 27-hot flue gas distribution channel, 28-air blowing opening, 29-inner cavity, 30-sliding rail, 31-adjustable support, 32-waste flue gas discharge channel, 33-heat insulation layer, 34-supporting rod, 35-guide plate, 36-supporting plate, 37-water cooling jacket, 38-ceramic lining, 39-steel beam, 40-straw round bag grabbing area, 41-upper station, 42-middle station, 43-lower station, 44-rolling bottom plate, 45-outer wall, 46-adjusting screw, 47-spring plate and 48-connecting piece.

Detailed Description

Application examples of the present invention will be explained in more detail below with reference to the drawings.

FIG. 1 comprises a straw round bale (8) combustion system (1), and the combustion power of the system is 4700 kW. Through the utility model discloses a round straw bale automatic feeding device will be in advance dry round straw bale (8) automatic loading to combustion system (1). The whole automatic feeding device for the straw round bags is designed to accommodate 2 straw round bags (8) side by side, and only the straw round bags (8) positioned in front of the visual field can be seen in the drawing.

The diameter of the round bale used in this example is between 1.15 and 1.5 meters and the length is about 1.2 meters. The straw round bag with moderate tightness and compact outside is preferably selected, so that hot gas or waste heat flue gas is favorably blown into the straw round bag, and the straw round bag is easy to gasify and burn.

According to the utility model discloses a straw circle package automatic feeding device pushes feed bin (2), straw circle package locking storehouse (3) and straw circle package dust removal drying and goes up feed bin (4) by the straw circle package and constitute.

The straw bale is pushed into the silo (2) as a sealed channel made of sheet metal, which channel is inclined upwards, here at an angle of approximately 25 °, so that the heat from the combustion system (1) only influences the upper region of the straw bale pushed into the silo (2). The straw round bale pushing bin (2) comprises a water cooling sleeve (37), a ceramic lining (38), a conveying chain (5), a sliding shield (6) used for pushing and conveying the straw round bale upwards and the like.

The top of the straw round bag pushing bin (2) is provided with a straw round bag retaining device (7) which can automatically swing through gravity. The device can prevent the round straw bales (8) pushed up before from automatically retreating and rolling downwards when the sliding shield (6) retreats and moves to be reloaded into another round straw bale (8).

The chain-driven sliding shield (6) can travel all the way to the combustion system (1) inlet when the combustion system (1) is depleted of fuel, and normally the sliding shield (6) will only move up to the upper station (41) where the straw bale holding means (7) is active in case of continuous operation. When the sliding shield (6) reaches the upper station (41), a signal for reloading the bales is sent, then when the sliding shield (6) moves to the middle station (42), the round straw bale grabbing area (40) is effective, and the round straw bale (8) automatically falls down when the sliding shield (6) reaches the lower station (43).

The round straw bale locking bin (3) and the round straw bale dedusting and drying feeding bin (4) connected with the round straw bale locking bin are arranged above the round straw bale pushing bin (2), so that the space required by the whole device can be minimized. The straw round bag (8) can fall into the straw round bag from the upper side and is pushed into the storage bin (2) only under the action of gravity, and when the first pivoting door (9) which is opened upwards is closed, the first pivoting door presses the sealing element (10) by means of the self weight, so that the airtightness is ensured. During normal operation, the tightness of the first pivoting door (9) can be enhanced by the low negative pressure state that the straw round bags are pushed into the storage bin (2), so that almost no air can enter the straw round bags from the outside and push into the storage bin (2) to prevent the straw round bags (8) from being burnt, and the air supply of the combustion system (1) is always controlled.

The other second pivot door (11) is responsible for locking the passage from the straw round bag dedusting and drying feeding bin (4) to the straw round bag locking bin (3), and a sealing piece (10) is also arranged in the passage and is closed by the self weight of the second pivot door (11).

If the combustion system (1) knocks and the pressure is too high, the first pivoting door (9) can be lifted and then the flue gas enters the straw round bale locking bin (3), so that the overpressure caused when the knocking occurs can be weakened, and the safety of the whole system is improved, but the second pivoting door (11) is always in a closed state at the moment, so that the straw round bales (8) in the straw round bale dedusting and drying feeding bin (4) are protected from catching fire.

When the round straw bale supporting device (12) in the round straw bale locking bin (3) is folded, the round straw bale (8) is controlled at a waiting station, so that the first pivoting door (9) and the second pivoting door (11) can be opened only when the other door is closed, and no more air can enter the round straw bale pushing bin (2) from the round straw bale locking bin (3).

The actuatable members are driven by pivots which are sealed from the outside by gland seals, the pivots being driven by gears or dc motors (not shown). The straw round bag dedusting and drying feeding bin (4) is connected with the straw round bag locking bin (3) at the top.

Fig. 2 shows the entire length of the above-described straw bale dusting and drying feeding bin (4). The device comprises two independent round straw bag conveying devices, wherein hot air or waste heat flue gas is only blown into the round straw bags (8) on the second round straw bag conveying device (14), so that dust removal and drying of the waste heat flue gas and the round straw bags (8) are realized simultaneously. The second round straw bale transportation device (14) in the embodiment can store 30 round straw bales (8) in total, wherein the number of the round straw bales is 15x 2. The retention time of the straw round bag (8) in the second straw round bag conveying device (14) can reach 6 hours under the full-power combustion state of the combustion system (1), and the retention time of the straw round bag (8) is longer under the condition of low combustion power. This allows the moist straw bales (8) to remove at least 15% of the moisture, which is sufficient to make very poor fuels suitable for combustion. The length of the straw round bale dedusting and drying feeding bin (4) at the second straw round bale conveying device (14) also depends on the amount of waste flue gas generated by the combustion system (1), and at least 30 straw round bales are arranged at the second straw round bale conveying device (14) when the combustion power of the embodiment is 4700 kW. At least 800Pa hot air or waste heat flue gas pressure is needed, and the lower the straw round bag density is, the lower the needed hot air or waste heat flue gas pressure is on the premise of ensuring the dust removal effect.

Two straw circle package conveyer all contain endless chain (15), drive wheel (16), supporting wheel (17), gear motor (25) and stay tube (18), and every straw circle package conveyer all is firmly connected with accurate distance by two endless chains (15). The straw bales (8) are positioned on a support tube (18), which support tube (18) is aligned at right angles to the transport direction and can be moved laterally in order to receive the straw bales (8).

The first round straw bale conveying device (13) is set to be capable of adding round straw bales (8) at regular time, and can feed 10 round straw bales (8) into the filling door (19) at most once by using a forklift or a front loader, so that the combustion system (1) can continuously combust for about 2 hours in a full-power state. The first round straw bale conveying device (13) can be fed with the round straw bales (8) along the advancing direction or at an angle of 90 degrees along the side face by using a proper loading device.

The first round straw bag conveying device (13) conveys round straw bags (8) to the second round straw bag conveying device (14) in an automatic operation state, so that the function that the round straw bag conveying device must keep synchronous operation is met, and the round straw bags (8) are always located in the middle of the air blowing opening (28).

The two round straw bag conveying devices are provided with independent position transmitters which are not shown in the figure and give position signals of the supporting pipes (18) and can stop the round straw bag conveying devices, so that errors in synchronous operation of the two round straw bag conveying devices can be continuously corrected.

The utility model discloses debris such as dust among the device can fall through stay tube (18) bottom plate (20) of feed bin (4) on the straw circle package dust removal drying, will be sent into dust collecting chamber (22) through scraper blade (21) very much, and accessible such as these dusts in dust collecting chamber (22) is detained door (23) and is cleared away through manual or machinery.

Fig. 3 shows a cross-sectional view of the dust-removing and drying feeding bunker (4) for straw bales in the area of the second straw bale conveyor (14), wherein the drive wheels (16) of the two endless chains (15) are arranged on solid rolling shafts (24), each rolling shaft (24) being located in the middle of a straw bale (8).

In the embodiment, the operation speed of the round straw bag conveying device is lower than 6 cm/s, hot air or waste heat flue gas with the temperature of 90-125 ℃ from a combustion system (1) enters a hot flue gas distribution channel (27) through a hot flue gas channel (26) with good heat insulation under pressure, then extends along the second round straw bag conveying device (14) and blows the hot flue gas into the round straw bag (8) through a blowing opening (28), and then the round straw bag (8) is dried and the dust removal of the waste heat flue gas is realized at the same time. Hot air or waste heat flue gas from other sources can be recycled for drying the round straw bales (8) so as to improve the energy utilization efficiency.

The fan is additionally arranged to draw purified dust and waste flue gas with water vapor from the inner cavity (29) of the straw bale dust removal and drying feeding bin (4), wherein the speed of the fan is set to keep the inner cavity (29) at a slight negative pressure (in the embodiment, -5Pa), so that the waste flue gas can be prevented from escaping when the filling door (19) is opened.

For this purpose, a low-power axial fan (not shown in the figure) is used to introduce the wet waste flue gas from the straw bale dedusting and drying upper bin (4) into the chimney through the waste flue gas discharge channel (32).

In order to prevent heat loss and condensation to the maximum extent, the whole dust removal drying automatic feeding device is covered by a heat insulation layer (33) from the outside.

The two sides of the round straw bag (8) are provided with sliding rails (30) made of wear-resistant steel for accurate positioning and proper sealing of the round straw bag, and the sliding rails (30) are connected to the outer wall (45) through adjustable supports (31) and spring pieces (47), so that the force generated by different lengths of the round straw bag can be overcome. The round straw bag (8) is properly shaped and closed by pressing the round straw bag (8) on the air blowing opening (28). The gear motor (25) generates the necessary force for this, which is limited by the adjustable support (31).

The endless chain (15) used in this embodiment consists of round steel with a diameter of about 14 mm and the maximum tension that can be applied by the drive system can be up to 50 kN. The welded supporting tube (18) with the diameter of 160mm can enable the straw round bag (8) to transversely move in the transportation direction of the straw round bag (8) so as to achieve the optimal position. The round supporting pipe (18) can protect the shape of the round straw bag (8) from being deformed.

The bundling or covering of the ordinary straw round bag mainly comprises a net or a film made of polyethylene, hot air or waste heat smoke in the second straw round bag conveying device (14) can be blown to the outside when being blown to the two straw round bags (8), but the temperature of the hot air or the waste heat smoke is reduced to be only slightly higher than 100 ℃ after being mixed with gas in the inner cavity (29), and the temperature does not form a problem for the heat resistance of the polyethylene.

However, even then, the heat resistance of the material used for the straw bale wrapping or wrapping must be considered. If necessary, the temperature of the hot air or the waste heat flue gas can be reduced by adding more fresh air in front of the fan, so that the moisture in the hot air or the waste heat flue gas can be reduced, and the drying effect of the round straw bale is hardly influenced. In any case, large-capacity hot air or waste heat flue gas is required to be pressed into the straw round bag (8).

This way, the flue gas escaping from the straw bale (8) during the transport of the straw bale (8) is kept at a high flow rate, while being protected from dust deposits at the blowing openings (28) and at the hot flue gas distribution channels (27).

The shape and position of the air blowing opening (28) can be seen in fig. 4, in the embodiment, the cross-sectional area of the air blowing opening (28) is about 0.25 square meter, and the position is low, so that hot air or waste heat flue gas can be easily delivered to the straw round bag (8) with smaller specification.

The air blowing opening (28) is perpendicular to the advancing direction of the straw round bag (8) and is framed by a continuous slide rail (30) and a support rod (34), and the slide rail and the support rod are provided with guide plates (35) to prevent the straw round bag (8) from being hooked.

In the embodiment, the speed of the hot air or the waste flue gas at the air blowing opening (28) is about 0.5 m/s, and the speed of the hot air or the waste flue gas after being diffused in the straw round bag (8) in all directions is reduced to be less than 10 cm/s. As more straw round bales (8) pass and the power of the combustion system (1) is reduced, the speed of hot air or waste flue gas is reduced and the dust removal effect is enhanced.

Dust on a bottom plate (20) of the straw round bag dedusting and drying upper storage bin (4) can be discharged through a scraper (21) fixed on the annular chain (15). The endless chain (15) is guided and supported by support wheels (17).

When the two round straw bag conveying devices synchronously operate, the round straw bags (8) can be transferred from the first round straw bag conveying device (13) to the second round straw bag conveying device (14).

The attachment of the support tube (18) to the endless chain (15) is shown in fig. 5. Between the endless chain (15) and the support tube (18) there is arranged a shaped support plate (36) which is supported on the tensioned endless chain (15) to prevent the support tube (18) from tilting, in the middle of which there are support wheels (17) which carry the endless chain (15) and guide the endless chain (15) in a direction perpendicular to the transport direction of the straw bales (8).

Fig. 6 shows an embodiment of the squeegee (21). The scraper (21) can also be supported on the next endless chain (15) and thus always remain in the working position. Since the two endless chains (15) are not extended and contact the base plate (20), the scrapers (21) scrape on the base plate (20) only by their own weight and are therefore less worn.

Fig. 7 shows the elastic attachment of the slide rail (30). The adjustable bracket (31) is connected to the outer wall (45) of the straw round bag dedusting and drying feeding bin (4), and the adjusting screw (46) presses on a spring piece (47) made of spring steel. The acting force is transmitted to the sliding rail (30) through the fixed steel sheet (48) to realize the position correction of the round straw bag (8), and the sliding rail (30) rebounds the round straw bag (8) when the position deviation of the round straw bag is large.

If the combustion system (1) sends a fuel demand signal through the conveying chain (5) and the sliding shield (6), the straw round bags are pushed into the storage bin (2) to push the straw round bags (8) to the combustion system (1) one by one.

When the sliding shield (6) reaches the upper station (41) and the straw round bale holding device (7) is started, the straw round bale reloading process is started, at the moment, the sliding shield (6) returns to the middle station (42), the second pivoting door (11) is opened, the straw round bale conveying device is started, the straw round bales (8) are conveyed to the air blowing opening (28) station, the straw round bales (8) positioned at the top (two straw round bales which are arranged side by side in the embodiment) fall into the straw round bale locking bin (3) and are caught by the straw round bale supporting device (12).

Then the second pivot door (11) is closed, the first pivot door (9) is opened in a delayed mode, the straw round bale supporting device (12) further releases the straw round bale (8) in a delayed mode and falls to the straw round bale grabbing area (40) in front of the sliding shield (6), the sliding shield (6) returns to the lower station (44) before the straw round bale supporting device, the first pivot door (9) is closed at the moment, and the straw round bale (8) reloading process is completed. The sliding shield (6) pushes the straw round bale (8) falling into the straw round bale grabbing area (40) to the combustion system (1) only after the combustion system (1) gives a fuel demand signal again.

In this embodiment, the utility model discloses the device mainly pushes feed bin (2), straw circle package locking bin (3) and the straw circle package dust removal drying that comprises two parts conveyer and goes up portable modules such as feed bin (4) by the straw circle package and constitute.

The drying of the round straw bales (8) and the dust removal of waste flue gas are integrated, so that the transportation times of the round straw bales (8) are reduced, the cost is reduced, and the appearance of the round straw bales is also protected.

The dry of straw fuel can reduce fuel consumption and cost of labor the utility model discloses the straw circle package (8) that carries out drying in advance among the device gasifies combustion in combustion system (1) more easily, and straw thermodynamic system's dust emission difficult problem also can be solved with the minimum cost.

Claims (12)

1. The automatic straw round bale feeding device capable of being used for flue gas dust removal and straw drying simultaneously comprises a straw round bale pushing bin, a straw round bale locking bin and a straw round bale dust removal drying feeding bin consisting of two conveying devices, wherein when the straw round bale is pushed into the feeding bin, the straw round bale is placed on a conveying chain and is pushed by a sliding shield to be fed into a combustion system; the device is characterized in that the straw round bag pushing bin (2) is connected with another straw round bag dedusting and drying upper bin (4) capable of introducing hot air or waste heat flue gas through a straw round bag locking bin (3).

2. The automatic feeding device of round straw bales, which can be used for both flue gas dust removal and straw drying, according to claim 1, is characterized in that the round straw bale pushing silo (2) comprises a round straw bale holding device (7).

3. The automatic straw round bale feeding device capable of being used for dedusting flue gas and drying straws simultaneously as claimed in claim 1, wherein the sliding shield (6) moving in the straw round bale pushing bin (2) is provided with a straw round bale grabbing area (40) at the top for loading the straw round bale (8) falling from the straw round bale locking bin (3), and the sliding shield (6) can also stop at the upper station (41) or the middle station (42).

4. The automatic feeding device of round straw bales capable of being used for dedusting flue gas and drying straws simultaneously as claimed in claim 1 is characterized in that the round straw bale locking bin (3) is arranged above the round straw bale pushing bin (2) and comprises a rolling bottom plate (44) which is inclined downwards.

5. The automatic straw round bale feeding device capable of being used for flue gas dust removal and straw drying at the same time as claimed in claim 4 is characterized in that the inlet and the outlet of the straw round bale locking bin (3) are respectively opened and closed by a first pivoting door (9) and a second pivoting door (11).

6. The automatic feeding device of round straw bales, which can be used for flue gas dust removal and straw drying at the same time, as claimed in claim 4, is characterized in that a round straw bale supporting device (12) is arranged in the round straw bale locking bin (3).

7. The automatic straw bale feeding device capable of being used for both flue gas dust removal and straw drying according to claim 1, characterized in that the straw round bale dust removal and drying feeding bin (4) comprises a hot flue gas distribution channel (27), and the hot flue gas distribution channel (27) is arranged with equidistant air blowing openings (28) and continuous spring-mounted slide rails (30).

8. The automatic straw round bale feeding device capable of being used for flue gas dust removal and straw drying simultaneously as claimed in claim 7 is characterized in that a first straw round bale conveying device (13) and a second straw round bale conveying device (14) are arranged at the bottom of the straw round bale dust removal and drying feeding bin (4), and supporting pipes (18) and scraping plates (21) are equidistantly arranged on annular chains (15) of the first straw round bale conveying device (13) and the second straw round bale conveying device (14).

9. The automatic straw bale feeding device capable of being used for both flue gas dust removal and straw drying as claimed in claim 8, characterized in that a support plate (36) is arranged on the support tube (18) and the scraper (21) extends to the next chain link of the endless chain (15).

10. The automatic feeding device for round straw bales capable of being used for both flue gas dust removal and straw drying according to claim 7 is characterized in that in the round straw bale dust removal and drying feeding bin (4), a first round straw bale conveying device (13) which is independently driven and is not provided with a hot flue gas distribution channel is arranged in front of a second round straw bale conveying device (14) area which is provided with the hot flue gas distribution channel (27).

11. The automatic straw round bale feeding device capable of being used for flue gas dust removal and straw drying simultaneously according to claim 8 is characterized in that after a round straw bale (8) automatically falls into a round straw bale and is pushed into the storage bin (2), the first round straw bale conveying device (13) and the second round straw bale conveying device (14) are synchronously started to operate, and the stopping operation of the first round straw bale conveying device (13) and the second round straw bale conveying device (14) is controlled by respective position sensors.

12. The automatic straw round bale feeding device capable of being used for flue gas dust removal and straw drying at the same time according to claim 1 is characterized in that the straw round bale pushing bin (2), the straw round bale locking bin (3) and the straw round bale dust removal and drying feeding bin (4) all operate under micro negative pressure and are sealed from the outside through a first pivoting door (9), a second pivoting door (11), a packing door (19) and a buckling door (23) with sealing elements (10).

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