Biomass particle blending combustion device of sludge boiler

Abstract

The biomass particle blending combustion device of the sludge boiler comprises a barrel, a combustion chamber, a combustion chamber and a combustion chamber, the barrel extends in the up-down direction, and the barrel is provided with a feeding port and a discharging port; the combustion device comprises a combustion furnace, an opening of the combustion furnace faces the upper side, and the combustion furnace can move relative to the barrel in the horizontal direction; the mixing device is arranged in the cylinder body, the mixing device comprises a driver and a stirring part, the stirring part comprises a plurality of stirring pieces, the driver can drive the plurality of stirring pieces to rotate in the cylinder body, and the extending direction of the rotating axis of each stirring part is the vertical direction. In some embodiments, the stirring portion includes a ring gear and a plurality of gears, the ring gear being engaged with at least a portion of the plurality of gears, the output shaft of the driver being connected to the gears, or the output shaft of the driver being connected to one of the plurality of gears, each gear being connected to at least one stirring member. According to the biomass particle blending combustion device of the sludge boiler, the biomass particles can be mixed, so that the subsequent combustion effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sludge boiler, in particular to a sludge boiler biomass particle blending device. BACKGROUND

[0002] In the related art, when the sludge boiler blends biomass, it generally uses single-pipe direct feeding or warehouse type simple superposition, and lacks online proportioning and uniform mixing means. When sludge particles and fuels such as wood chips and rice husks with significant differences in density, heat value, and moisture content are concentrated into the furnace, they are prone to stratified accumulation: large-density, low-porosity areas hinder the penetration of combustion air, forming anoxic zones and producing harmful gases; light high-volatile particles burn quickly, causing local high-temperature coking, and unburned residues are discharged with the ash, which not only reduces the thermal efficiency, but also aggravates the corrosion of the heating surface, seriously restricting the clean incineration and resource utilization of sludge. SUMMARY

[0003] The present application aims to at least partially solve one of the technical problems in the related art. To this end, an embodiment of the present application proposes a sludge boiler biomass particle blending device.

[0004] The sludge boiler biomass particle blending device of the present application comprises: a cylinder body extending in the vertical direction, the cylinder body having a feed inlet and a discharge outlet, the discharge outlet being located at the bottom of the cylinder body, and the feed inlet being located at the upper part of the cylinder body; a combustion device comprising a combustion furnace, the opening of the combustion furnace facing upward, and the combustion furnace being movable relative to the cylinder body in the horizontal direction; a mixing device provided in the cylinder body, the mixing device comprising a driver and a stirring part, the stirring part comprising a plurality of stirring pieces, the driver being capable of driving the plurality of stirring pieces to rotate in the cylinder body, and the extension direction of the rotation axis of each stirring part being the vertical direction.

[0005] In some embodiments, the stirring part comprises a gear ring and a plurality of gears, the gear ring being engaged with at least part of the plurality of gears, the output shaft of the driver being connected with the gears, or the output shaft of the driver being connected with one of the plurality of gears, and each gear being connected with at least one stirring piece.

[0006] The sludge boiler biomass particle blending device according to the present application mixes different types of biomass particles, makes the particle gap distribution uniform, accelerates the flow of combustion air, and at the same time does not form local coking or unburned residues, which is beneficial to subsequent combustion and improves the subsequent combustion effect.

[0007] In some embodiments, the tooth ring is rotatably arranged on the top of the barrel, the outer surface of the tooth ring is in sliding connection with the inner wall of the barrel, the tooth ring is located outside the plurality of gears, and the teeth on the inner ring surface of the tooth ring are engaged with at least part of the plurality of gears.

[0008] In some embodiments, the plurality of gears comprises a first gear and a plurality of second gears, the first gear is connected with the output shaft of the driver, the plurality of second gears are uniformly arranged in the circumferential direction on the circumferential side of the first gear, each of the gears is engaged with the first gear and the tooth ring. The plurality of stirring members comprises a first stirring member and a plurality of second stirring members, the first stirring member is connected with the output shaft of the driver or the first gear, the first stirring member is located below the first gear, and the plurality of second stirring members are connected with the plurality of second gears one by one, and the second stirring members are located below the second gears.

[0009] In some embodiments, the first stirring member comprises a first shaft and a plurality of stirring assemblies, the first shaft extends in the up-down direction, the plurality of stirring assemblies are arranged in the circumferential direction on the circumferential side of the first shaft, each of the stirring assemblies comprises a plurality of stirring strips arranged in the up-down direction, and the stirring strips extend in the radial direction of the first shaft.

[0010] In some embodiments, the second stirring member comprises a second shaft and a plurality of stirring plates, the second shaft extends in the up-down direction, the plurality of stirring plates are arranged in the circumferential direction on the circumferential side of the second shaft, each of the stirring plates extends in the up-down direction, and the second shaft is rotatably connected with the barrel through a support member.

[0011] In some embodiments, the plurality of stirring members comprises a plurality of scrapers, the plurality of scrapers are arranged in the circumferential direction in the barrel, the scrapers extend in the up-down direction, the top of the scraper is connected with the tooth ring, the scraper abuts against the inner wall of the barrel, and the outer peripheral contour of the cross section of the inner wall of the barrel is circular.

[0012] In some embodiments, the top of the barrel is provided with a mounting frame, and the driver is arranged on the mounting frame.

[0013] In some embodiments, the combustion device further comprises a support seat, the support seat is arranged below the barrel and the combustion furnace, the support seat is provided with a sliding rail, the bottom of the combustion furnace is provided with a sliding block, and the sliding block is movably arranged in the sliding rail.

[0014] In some embodiments, the barrel is connected with the support seat through a support frame, and the support frame is arranged on the circumferential side of the barrel. The support base is provided with a fixing plate, the fixing plate is provided with a limiting plate and the slide rail, the limiting plate is located at one end of the slide rail along its length, and a connecting plate is provided between the fixing plate and the support base; There are multiple slide rails; The support base is equipped with a second driver, which can drive the combustion furnace to move along the slide rail. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a biomass pellet co-firing device for a sludge boiler according to an embodiment of the present invention.

[0016] Figure 2 This is a cross-sectional view of the cylinder according to an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of a mixing device according to an embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of a slide rail according to an embodiment of the present invention.

[0019] Reference numerals: 1. Support base; 2. Mixing device; 21. Fixing block; 22. Driver; 23. Fixing rod; 24. Fixing ring; 25. Second stirring component; 26. First stirring component; 27. Support component; 28. Gear ring; 29. ​​First gear; 201. Second gear; 202. Scraper; 3. Combustion device; 31. Combustion furnace; 32. Sliding block; 33. Limiting plate; 34. Connecting plate; 35. Slide rail; 36. Fixing plate; 4. Support frame; 5. Cylinder. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0021] The following description, with reference to the accompanying drawings, describes an embodiment of the biomass pellet co-firing device for a sludge boiler according to the present invention. Figures 1 to 4 As shown, the sludge boiler biomass pellet co-firing device according to an embodiment of the present invention includes a cylinder 5, a combustion device 3, and a mixing device 2.

[0022] The cylinder 5 extends vertically and has an inlet and an outlet. The outlet is located at the bottom of the cylinder 5, and the inlet is located at the top. Specifically, biomass fuel is introduced into the cylinder 5 through the inlet and then discharged from the cylinder 5 through the outlet. For example, the inlet may be located on the upper outer side of the cylinder 5.

[0023] The combustion device 3 comprises a combustion furnace 31, the opening of the combustion furnace 31 faces the upper side, and the combustion furnace 31 can move in the horizontal direction relative to the cylinder body 5. Thus, it is convenient to adjust the position of the combustion furnace 31 according to the combustion demand, so that the combustion furnace 31 can be conveniently combusted and charged. Or when maintaining, the combustion furnace 31 is moved out, improving the flexibility and maintainability of the device. For example, the combustion furnace 31 is moved to the position directly below the cylinder body 5, which can facilitate charging, and the combustion furnace 31 can be moved outward, so that the combustion furnace 31 is spaced apart from the cylinder body 5 in the horizontal direction, so as to facilitate the combustion of the combustion furnace 31.

[0024] The mixing device 2 is arranged in the cylinder body 5, and the mixing device 2 comprises a driver and a stirring part, the stirring part comprises a plurality of stirring pieces, the driver can drive the plurality of stirring pieces to rotate in the cylinder body 5, and the extension direction of the rotation axis of each stirring part is the up-down direction. Thus, the sludge particles and the fuel such as wood chips and rice husks with significant differences in density, calorific value and moisture content can enter the cylinder body 5. The driver 22 drives the plurality of stirring pieces to rotate in the cylinder body 5, so that the biomass fuel is stirred by the plurality of stirring pieces, so that the biomass fuel is uniformly stirred, so that the biomass can be completely burned, and the utilization rate of energy can be improved.

[0025] As shown in Figures 1 to 3 some embodiments, the top of the cylinder body 5 is provided with a mounting frame, and the driver 22 is arranged in the mounting frame. Specifically, the mounting frame comprises a fixed block 21, a fixed ring 24 and a fixed rod 23, the fixed block 21 is located at the center position of the top of the cylinder body 5, the fixed block 21 is connected with the fixed ring 24 through a plurality of fixed rods 23, and the fixed ring 24 is connected with the outer side of the cylinder body 5. The mounting frame ensures the stability of the driver 22 during operation, avoiding the influence of vibration on the transmission accuracy. For example, the driver 22 is a motor.

[0026] As shown in Figure 1 some embodiments, the combustion device 3 further comprises a support seat 1, and the support seat 1 is arranged below the cylinder body 5 and the combustion furnace 31. The support seat 1 is provided with sliding rails 35, and the bottom of the combustion furnace 31 is provided with sliding blocks 32, which are movably arranged in the sliding rails 35. Thus, the combustion furnace 31 can move on the sliding rails 35 through the sliding blocks 32, so that the combustion furnace 31 can move with the cylinder body 5.

[0027] In some embodiments, the cylinder body 5 is connected with the support seat 1 through a support frame 4, and the support frame 4 is arranged on the circumferential side of the cylinder body 5. For example, the support frame 4 comprises two support plates arranged on the two sides of the cylinder body 5.

[0028] In some embodiments, the support seat 1 is provided with a fixed plate 36, the fixed plate 36 is provided with limit plates 33 and sliding rails 35, the limit plates 33 are located at one end of the length direction of the sliding rails 35, and the sliding rails 35 are a plurality of. Thus, the limit plates 33 can limit the combustion furnace 31 (the sliding blocks 32).

[0029] In some embodiments, the slide rail 35 is multiple to stabilize the movement of the combustion furnace 31. For example, the slide rail 35 is two.

[0030] In some embodiments, the support base 1 is provided with a second driver which can drive the combustion furnace 31 to move along the slide rail 35. For example, the second driver is a telescopic rod.

[0031] As shown in FIG. 1, in some embodiments, the stirring part comprises a gear ring 28 and multiple gears, the gear ring 28 is engaged with at least part of the multiple gears. The output shaft of the driver 22 is connected with the gears, or the output shaft of the driver 22 is connected with one of the multiple gears, and each gear is connected with at least one stirring piece. In this way, the driver 22 can drive the stirring pieces to rotate in the barrel 5 through the gear ring 28 and the multiple gears. Figures 1 to 3 As shown in FIG. 1, in some embodiments, the gear ring 28 is rotatably arranged at the top of the barrel 5, the outer surface of the gear ring 28 is slidably connected with the inner wall of the barrel 5, the gear ring 28 is located outside the multiple gears, and the teeth on the inner ring surface of the gear ring 28 are engaged with at least part of the multiple gears. In this way, the gear ring 28 and the multiple gears can rotate together. For example, the inner side of the top of the barrel 5 is provided with an annular sliding groove, or the gear ring 28 is rotatably arranged in the barrel 5 through the gears.

[0032] As shown in FIG. 1, in some embodiments, the multiple gears comprise a first gear 29 and multiple second gears 201, the first gear 29 is connected with the output shaft of the driver 22, the multiple second gears 201 are uniformly and circumferentially spaced apart on the circumferential side of the first gear 29, and each gear is engaged with the first gear 29 and the gear ring 28. In this way, when the driver 22 drives the first gear 29 to rotate, the first gear 29 can drive the multiple second gears 201 on the circumferential side to rotate to drive the multiple stirring pieces to rotate. The second gears 201 can drive the gear ring 28 to rotate, and the gear ring 28 can limit the multiple second gears 201. The second gears 201 are uniform in size and uniformly distributed. This ensures that the engagement of the second gears 201 with the gear ring 28 and the first gear 29 is more stable, the force on each stirring part is balanced, the stability of the overall operation of the mixing device 2 is improved, the stirring range of the materials in the barrel 5 is more comprehensive, and the stirring dead angle is avoided. For example, the multiple gears comprise the first gear 29 and three second gears 201, and the three second gears 201 are uniformly and circumferentially spaced apart on the circumferential side of the first gear 29.

[0033] Figures 1 to 3

[0034] ​​The plurality of stirring members comprises a first stirring member 26 and a plurality of second stirring members 25. The first stirring member 26 is connected with the output shaft of the first gear 29 or the driver 22, and the first stirring member 26 is located below the first gear 29. The first stirring member 26 comprises a first shaft extending in the up-down direction and a plurality of stirring assemblies arranged at the circumferential side of the first shaft in the circumferential direction. Each stirring assembly comprises a plurality of stirring bars arranged in the up-down direction and extending in the radial direction of the first shaft. For example, the first shaft of the first stirring member 26 is connected with the output shaft of the driver 22. The number of the stirring assemblies is three. Alternatively, the inner ring of the first gear 29 is connected with the first shaft of the first stirring member 26.

[0035] As shown in Figures 1 to 3 The plurality of second stirring members 25 are connected with the plurality of second gears 201 one by one, and the second stirring members 25 are located below the second gears 201. The second stirring member 25 comprises a second shaft extending in the up-down direction and a plurality of stirring plates arranged at the circumferential side of the second shaft in the circumferential direction. Each stirring plate extends in the up-down direction. The second shaft is rotatably connected with the barrel 5 through the support 27. For example, the top of the second shaft is connected with the corresponding second gear 201, the top of the second shaft is rotatably connected with the support 27, the other end of the support 27 is connected with the barrel 5, and the bottom of the second shaft is rotatably connected with the plate body on the barrel 5, so that the position of the shaft center of the second shaft (the second gear 201) is unchanged. For another example, the second stirring member 25 comprises three stirring plates.

[0036] In some embodiments, the plurality of stirring members comprises a plurality of scrapers 202 arranged in the barrel 5 in the circumferential direction. The scraper 202 extends in the up-down direction, the top of the scraper 202 is connected with the gear ring 28, the scraper 202 abuts against the inner wall surface of the barrel 5, and the cross-sectional outer peripheral contour of the inner wall surface of the barrel 5 is circular. In this way, when the second gear 201 drives the gear ring 28 to rotate, the scraper 202 can scrape off the material adhering to the inner wall of the barrel 5, prevent the material from adhering and accumulating, ensure the effective volume of the barrel 5, and make the material fully participate in the mixing.

[0037] The sludge boiler biomass particle blending device according to the embodiment of the present application can mix different types of biomass particles, make the gap distribution of the particles uniform, accelerate the circulation of the fire-retardant air, and will not form local coking or unburned residues, which is beneficial to subsequent combustion and improves the subsequent combustion effect.

[0038] In the description of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated thereby. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0040] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0042] In this disclosure, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that a particular feature, structure, material, or characteristic is included in at least one embodiment or example of the present disclosure. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily referred to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the terminology "comprising" is used in the disclosure as comprising but not limited to, that is, it is open-ended and does not exclude the presence of additional features, structures, materials, or characteristics.

[0043] Although the embodiments of the present disclosure have been shown and described above, it should be understood by those having ordinary skill in the art that the above-mentioned embodiments are exemplary and should not be construed as limiting the present disclosure, and those skilled in the art can make changes, modifications, replacements, and variations to the above-mentioned embodiments within the scope of the present disclosure.

Claims

1. A sludge boiler biomass particle blending device, characterized by, The device comprises: a cylinder body extending in the vertical direction, the cylinder body having an inlet and an outlet, the outlet being arranged at the bottom of the cylinder body, and the inlet being arranged at the upper portion of the cylinder body; a combustion device comprising a combustion furnace, the combustion furnace having an opening facing upward, and the combustion furnace being movable relative to the cylinder body in the horizontal direction; a mixing device arranged in the cylinder body, the mixing device comprising a driver and a stirring portion, the stirring portion comprising a plurality of stirring members, and the driver being capable of driving the plurality of stirring members to rotate in the cylinder body, and the extending direction of the rotation axis of each stirring member being the vertical direction.

2. The sludge boiler biomass particle blending device according to claim 1, characterized in that, The stirring portion comprises a gear ring and a plurality of gear wheels, the gear ring being engaged with at least part of the plurality of gear wheels, and the output shaft of the driver being connected with the gear wheels, or the output shaft of the driver being connected with one of the plurality of gear wheels, and each gear wheel being connected with at least one stirring member.

3. The sludge boiler biomass particle blending device according to claim 2, characterized in that, The gear ring is rotatably arranged at the top of the cylinder body, the outer surface of the gear ring being slidably connected with the inner wall surface of the cylinder body, the gear ring being located outside the plurality of gear wheels, and the teeth of the inner ring surface of the gear ring being engaged with at least part of the plurality of gear wheels.

4. The sludge boiler biomass particle blending device according to claim 3, wherein The plurality of gear wheels comprises a first gear wheel and a plurality of second gear wheels, the first gear wheel being connected with the output shaft of the driver, and the plurality of second gear wheels being uniformly and circumferentially arranged at the circumferential side of the first gear wheel, each gear wheel being engaged with the first gear wheel and the gear ring. The plurality of stirring members comprises a first stirring member and a plurality of second stirring members, the first stirring member being connected with the first gear wheel or the output shaft of the driver, the first stirring member being located below the first gear wheel, and the plurality of second stirring members being one-to-one connected with the plurality of second gear wheels, the second stirring members being located below the second gear wheels.

5. The sludge boiler biomass particle blending device according to claim 4, characterized in that, The first stirring member comprises a first shaft and a plurality of stirring assemblies, the first shaft extending in the vertical direction, and the plurality of stirring assemblies being circumferentially and spacedly arranged at the circumferential side of the first shaft, each stirring assembly comprising a plurality of stirring bars arranged in the vertical direction, and the stirring bars extending in the radial direction of the first shaft.

6. The sludge boiler biomass particle blending device according to claim 4, characterized in that, The second stirring member comprises a second shaft and a plurality of stirring plates, the second shaft extending in the vertical direction, and the plurality of stirring plates being circumferentially and spacedly arranged at the circumferential side of the second shaft, each stirring plate extending in the vertical direction, and the second shaft being rotatably connected with the cylinder body through a support.

7. The sludge boiler biomass particle blending device according to claim 4, characterized in that, The plurality of stirring members comprises a plurality of scrapers, the plurality of scrapers being circumferentially and spacedly arranged in the cylinder body, the scrapers extending in the vertical direction, the top of the scraper being connected with the gear ring, the scraper being abutted with the inner wall surface of the cylinder body, and the cross-sectional outer peripheral contour of the inner wall surface of the cylinder body being circular.

8. The sludge boiler biomass particle blending device according to claim 1, characterized in that, The top of the cylinder body is provided with a mounting frame, and the driver is arranged in the mounting frame.

9. A sludge boiler biomass particle admixture according to any of claims 1 - 8, characterized in that, The combustion device further comprises a support base arranged below the cylinder and the combustion furnace, the support base is provided with sliding rails, the bottom of the combustion furnace is provided with sliding blocks, and the sliding blocks are movably arranged in the sliding rails.

10. The sludge boiler biomass particle blending combustion device according to claim 9, characterized in that, The cylinder is connected with the support base through a support frame, and the support frame is provided with the circumferential side of the cylinder; The support base is provided with a fixed plate, the fixed plate is provided with a limiting plate and the sliding rails, the limiting plate is located at one end of the length direction of the sliding rails, and a connecting plate is arranged between the fixed plate and the support base; The sliding rails are a plurality of sliding rails; The support base is provided with a second driver, and the second driver can drive the combustion furnace to move along the direction of the sliding rails.

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