Uniform blanking device for feeding of drying machine
By designing a uniform blanking device including a diffuser, a blanking hopper and an adjustable blanking adjustment device, the problem of uneven blanking of coal powder in the prior art is solved, and the uniform blanking of coal powder and the coal inlet effect of dryer are improved.
Patent Information
- Application Number
- CN202421916826.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-08
AI Technical Summary
In the prior art, the distance between the output port of the blanking adjustment device of the dryer feeding device and the diffuser cannot be adjusted, resulting in uneven blanking of the coal powder, which can easily cause blockage, and the coal inlet effect is not ideal.
A uniform blanking device including a diffuser, a blanking hopper and a blanking adjustment device is designed. The blanking adjustment device consists of a movable sleeve, a movable sleeve shell and an adjusting member. The distance between the output port of the movable sleeve and the diffuser is adjusted through the adjustment member to achieve uniform blanking of coal powder.
Through the adjustment device, uniform blanking of coal powder is achieved, equipment wear is reduced, installation and replacement process is simplified, and coal inlet effect and drying capacity of the dryer are improved.
Smart Images
Figure CN222964375U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of coal powder dropping for chemical machinery, in particular to a uniform dropping device for feeding dryers. Background Art
[0002] The coal powder is transported by the coal feeder, enters the feeding device of the dryer, and then enters the dryer. If the coal feeder feeds evenly, the coal powder will fall evenly into the feeding device, so the dryer has a better coal feeding effect. At present, the coal feeder feeds coal powder intermittently, and the width of the coal feeder belt is calculated based on the amount of coal fed, so it is designed to be narrower than the feeding device of the dryer, causing the coal dropped by the coal feeder to be concentrated in the middle part of the feeding device, which is easy to cause coal powder blockage and unsatisfactory coal feeding effect. The drying effect of the dryer is poor. Although the current dropping device and intermediate links have a certain dispersion effect on the coal powder, the distribution is uneven, and the dryer feeding uniformity is not good.
[0003] The Chinese utility model patent with the authorization announcement number CN203980863 discloses a uniform coal powder dropping device, which includes a collecting hopper and a dropping hopper, which are connected together by a flange. The collecting hopper has an inverted cone structure directly above the dropping hopper. When the coal powder falls, the collecting hopper can gather the coal powder together. Through this device, the coal powder is re-gathered in a line and falls down; the dropping hopper has a double cone structure, which can make the coal powder spread evenly.
[0004] The prior art has the following defects and deficiencies: In the above-mentioned prior art, since the distance between the outlet below the aggregate hopper and the cone structure in the drop hopper cannot be adjusted, once the amount of coal powder decreases, the material cannot be evenly distributed on the cone. There is a flange structure above the aggregate hopper, and the size of the short feed pipe connecting the top is required to be within the design range, which requires high equipment processing accuracy. The cone structure in the aggregate hopper has a certain resistance to the falling of coal powder, and long-term work will cause certain grinding of the plate. Since it is a welded structure, it is more difficult to replace it later. In addition, the cone in the drop hopper is an upper and lower cone structure, and the inner box is also a cone structure. The steel structure is inconvenient and difficult to process. Utility Model Content
[0005] The utility model provides a uniform material dropping device for feeding a dryer, which solves the problem that the distance between the output port of the material dropping regulating device and the diffuser cannot be adjusted.
[0006] To achieve the above objectives, this application provides the following technical solutions:
[0007] A uniform blanking device for the feeder of a dryer, comprising: a diffuser, a blanking hopper, and a blanking adjustment device; the diffuser is located above the blanking hopper and is used to disperse the raw materials, and the blanking hopper is used to output the raw materials; the blanking adjustment device is located above the diffuser; the blanking adjustment device includes: a movable sleeve, a movable sleeve housing, and an adjustment member, the movable sleeve is movably arranged on the movable sleeve housing, the movable sleeve housing is connected to the diffuser, and the adjustment member is used to adjust the distance between the output port of the movable sleeve and the diffuser.
[0008] Further, in the uniform blanking device as described above, the upper part of the movable sleeve is in a tubular structure, and the lower part is in a reduced opening structure.
[0009] Further, in the uniform blanking device as described above, a flanging is formed by extending the upper end of the movable sleeve outwards, the flanging is placed on the upper end surface of the movable sleeve housing, and a screw hole is provided on the flanging; the adjustment member includes an adjustment bolt, and the adjustment bolt cooperates with the screw hole to adjust the distance between the output port of the movable sleeve and the diffuser.
[0010] Further, in the uniform blanking device as described above, there is a feed short pipe, the movable sleeve is sleeved outside the feed short pipe, and the movable sleeve and the feed short pipe are arranged at intervals.
[0011] Further, in the uniform blanking device as described above, the feed short pipe and the movable sleeve are hermetically connected by a braided packing; a packing retaining ring is formed on the inner side wall of the movable sleeve, and the braided packing is placed on the packing retaining ring.
[0012] Further, in the uniform blanking device as described above, a gland is provided above the braided packing for pressing the braided packing, and the gland is screwed and fixed to the movable sleeve housing.
[0013] Further, in the uniform blanking device as described above, the cross-sectional area of the blanking hopper gradually becomes smaller from top to bottom; a deflecting plate is provided at the discharge port of the blanking hopper, and the deflecting plate rotates relative to the discharge port to adjust the size of the discharge port.
[0014] Further, in the uniform blanking device as described above, the first end of the discharge port of the blanking hopper is provided with the deflecting plate through a folding plate rotating shaft, a driving mechanism is provided on the outer side surface of the deflecting plate, and the driving mechanism is used to drive the deflecting plate to rotate around the folding plate rotating shaft towards or away from the second end of the discharge port to adjust the size of the discharge port; the second end is arranged opposite to the first end, and the height of the first end is higher than the height of the second end.
[0015] Further, in the uniform blanking device as described above, the diffuser includes a diffuser housing, an upper cone, and a lower box body. The upper cone and the lower box body are arranged inside the diffuser housing. The area of the cross-section of the upper cone gradually increases from top to bottom, and the lower box body is fixedly connected to the upper cone.
[0016] Further, in the uniform blanking device as described above, the blanking hopper includes a blanking hopper body and a blanking hopper housing. The blanking hopper body is used to output raw materials; the blanking hopper housing is provided with through holes.
[0017] The technical solutions provided by the embodiments of the present application have the following beneficial effects:
[0018] 1. The movable sleeve is in a tubular or square tubular shape, and the lower part is a reduced diameter structure, with little resistance to the raw material pulverized coal, reducing equipment wear. Adding a movable sleeve, adjusting the distance between the output port and the lower diffuser through the adjusting bolt, making the blanking adjustment device distribute materials more evenly, and facilitating equipment installation, debugging, and later replacement.
[0019] 2. The movable sleeve and the feed short pipe are hermetically connected through a braided packing. The distance between the feed short pipe and the movable sleeve is adjustable. The movable sleeve is sleeved outside the feed short pipe, and there is a certain distance between the movable sleeve and the feed short pipe. The braided packing solves the production tolerance problem and facilitates on-site equipment pipeline installation and later maintenance.
[0020] 3. The upper cone of the diffuser and the hopper-shaped structure of the blanking hopper are adapted to the housing box structure of the uniform blanking device, which is faster and more convenient than the upper and lower conical material distribution structures and the processing of conical silos.
[0021] 4. A deflector plate is provided at the discharge port of the blanking hopper. By adjusting the deflector plate, the size of the discharge port is adjusted to achieve uniform output of raw materials, which is convenient and fast for on-site debugging and provides uniform raw materials for the dryer. Description of the Drawings
[0022] Figure 1 It is a cross-sectional view of a uniform blanking device for feeding a dryer provided by an embodiment of the present application;
[0023] Figure 2 It is an enlarged view of an embodiment of the deflector plate of a uniform blanking device for feeding a dryer provided by an embodiment of the present application;
[0024] Figure 3 It is a partially enlarged view of the braided packing of a uniform blanking device for feeding a dryer provided by an embodiment of the present application;
[0025] Figure 4 It is an enlarged view of another embodiment of the drive mechanism of a uniform blanking device for feeding a dryer provided by an embodiment of the present application;
[0026] Explanation of the reference numerals in the drawings: blanking adjustment device 1, diffuser 2, blanking hopper 3, movable sleeve 4, feed short pipe 5, gland 6, braided packing 7, adjusting bolt 8, folding plate rotating shaft 9, folding plate 10, upper cone 13, hopper-shaped structure 14, lower box body 15, arc section 16, packing retaining ring 18, upper connecting plate 111, first inclination angle 121, second inclination angle 122, valve plate 21, valve plate rotating shaft 22, crank arm 23, bearing 24, joint 26, support rod 27, first end 31, second end 32. Specific embodiments
[0027] To make the objectives, technical solutions and advantages of the present utility model clearer, the following will further describe in detail the embodiments of the present utility model with reference to the drawings. Obviously, the described embodiments are only a part rather than all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0030] Refer to the attached Figures 1-3 A uniform blanking device for the feed of a dryer provided by an embodiment of the present application will be introduced in detail. Among them, Figure 1 is a cross-sectional view of a uniform blanking device for the feed of a dryer provided by an embodiment of the present application; Figure 2 is an enlarged view of an embodiment of the folding plate of a uniform blanking device for the feed of a dryer provided by an embodiment of the present application; Figure 3Partial enlarged view of the braided packing of a uniform blanking device for dryer feeding provided by an embodiment of the present application; Figure 4 Another enlarged view of the drive mechanism of a uniform blanking device for dryer feeding provided by an embodiment of the present application.
[0031] Briefly speaking, the basic technical solution of the present utility model is briefly described as follows: A uniform blanking device for dryer feeding includes: a diffuser 2, a blanking hopper 3, and a blanking adjustment device 1; the diffuser 2 is located above the blanking hopper 3 and is used to diffuse the raw materials, and the blanking hopper 3 is used to output the raw materials; the blanking adjustment device 1 is located above the diffuser 2, and the blanking adjustment device 1 includes a movable sleeve 4, a movable sleeve housing, and an adjustment member. The movable sleeve 4 is movably arranged on the movable sleeve housing, the movable sleeve housing is connected to the diffuser 2, and the adjustment member is used to adjust the distance between the output port of the movable sleeve 4 and the diffuser 2.
[0032] The following will elaborate on a uniform blanking device for dryer feeding provided by the present application.
[0033] As Figure 1 shown, a uniform blanking device for dryer feeding provided by the present application includes: the diffuser 2, the blanking hopper 3, and the blanking adjustment device 1 mentioned in the above embodiment; the diffuser 2 is located above the blanking hopper 3 and is used to diffuse the raw materials, and the blanking hopper 3 is used to output the raw materials; the blanking adjustment device 1 is located above the diffuser 2 and is used to sort and concentrate the raw materials. The blanking adjustment device 1 includes a movable sleeve 4, a movable sleeve housing, and an adjustment member. The movable sleeve 4 is movably arranged on the movable sleeve housing, the movable sleeve housing is connected to the diffuser 2, and the adjustment member is used to adjust the distance between the output port of the movable sleeve 4 and the diffuser 2. The movable sleeve housing and the diffuser housing are fixedly connected; the diffuser housing and the blanking hopper housing are fixedly connected.
[0034] The present application uses the movable sleeve 4 to solve the problem that the distance between the output port of the blanking adjustment device 1 (that is, the output port of the movable sleeve 4) and the diffuser 2 cannot be adjusted, making the blanking of the blanking adjustment device 1 more uniform. If the input amount of the raw materials entering the blanking adjustment device 1 decreases, the distance between the output port of the blanking adjustment device 1 and the diffuser 2 can be reduced. If the input amount of the raw materials entering the blanking adjustment device 1 increases, the distance between the output port of the blanking adjustment device 1 and the diffuser 2 can be increased to keep the blanking of the uniform blanking device uniform.
[0035] Further, the housing of the movable sleeve 4 is in a conical structure, and the horizontal cross-section of the conical structure gradually increases from top to bottom, saving materials and costs compared with a cylindrical structure. The housing of the diffuser is in a cylindrical structure, which is used to protect the upper cone 13 and the lower box 15 inside the diffuser. In a specific embodiment, the housing of the movable sleeve and the housing of the diffuser are fixedly connected by screwing. Preferably, the housing of the movable sleeve and the housing of the diffuser are fixedly connected by screwing through a flange. The housing of the hopper is in an inverted conical structure, and the area of the horizontal cross-section of the inverted conical structure gradually decreases from top to bottom. In a specific embodiment, the housing of the hopper and the housing of the diffuser are fixedly connected by screwing. Preferably, the housing of the hopper and the housing of the diffuser are fixedly connected by screwing through a flange. In a specific embodiment, the blanking adjustment device 1, the movable sleeve 4 and the diffuser 2 are coaxially arranged.
[0036] As Figure 1 shown, the hopper 3 includes a hopper body and a hopper housing. The interior of the hopper 3 is the hopper body, which is used to output raw materials and is in a funnel-shaped structure 14. The area of the cross-section of the funnel-shaped structure 14 gradually decreases from top to bottom, which is used to control the uniform output of raw materials. The funnel-shaped structure 14 includes a first plate and a second plate. The upper end of the first plate is fixedly connected to the inner wall of the hopper housing; the upper end of the second plate is fixedly connected to the inner wall of the hopper housing; the first plate and the second plate are arranged as opposite slopes, and the area of the cross-section between the first plate and the second plate gradually decreases from top to bottom, thereby controlling the uniform output of raw materials, saving materials, reducing weight and saving costs; the lower ends of the first plate and the second plate form the discharge port of the hopper 3. Specifically, by rotating the lower end of the first plate along the folding plate rotating shaft 9, the size of the discharge port is adjusted to make the raw materials output uniformly. That is to say, the area of the cross-section of the hopper 3 gradually decreases from top to bottom, and a folding plate 10 is arranged at the discharge port of the hopper 3. The folding plate 10 rotates relative to the discharge port to adjust the size of the discharge port.
[0037] Further, the movable sleeve 4 is located in the middle of the blanking adjustment device 1 and is used to adjust the distance between the output port of the blanking adjustment device 1 (i.e., the output port of the movable sleeve 4) and the diffuser 2. The upper part of the movable sleeve 4 is in a tubular structure, which can be a circular tube or a square tube. Preferably, the upper part of the movable sleeve 4 is in a circular tube structure. The lower part of the movable sleeve 4 is in a reduced-opening structure, and the area of the cross-section of the reduced-opening structure gradually decreases from top to bottom, which can collect raw materials, has little resistance to raw materials and reduces equipment wear. Preferably, the upper part and the lower part of the movable sleeve 4 are fixedly connected by welding, and the upper part and the lower part of the movable sleeve 4 are coaxially arranged to ensure the centralized falling of raw materials; preferably, the reduced-opening structure is an inverted conical structure, and the area of the horizontal cross-section of the inverted conical structure gradually decreases from top to bottom. The lower end of the movable sleeve 4 is provided with the output port of the blanking adjustment device 1, that is, the output port of the movable sleeve 4.
[0038] In a specific embodiment, a flange is formed by the outward extension of the upper end portion of the movable sleeve 4. The flange is placed on the upper end surface of the movable sleeve housing, and a threaded hole is provided on the flange. The adjusting member includes an adjusting bolt 8, and the adjusting bolt 8 is engaged with the threaded hole to adjust the distance between the output port of the movable sleeve 4 and the diffuser 2.
[0039] Of course, it can also be that a threaded hole is provided on the upper end surface of the movable sleeve 4. The threaded hole is fixedly connected to the upper end surface of the movable sleeve 4. The threaded hole and the upper end surface of the movable sleeve 4 can be fixedly connected by welding, or the threaded hole and the upper end surface of the movable sleeve 4 can be integrally formed. The threaded hole can also be a nut, and the nut is fixedly connected to the upper end surface of the movable sleeve 4 by welding. Correspondingly, an adjusting bolt 8 is provided at the end of the movable sleeve 4. The lower bottom surface of the adjusting bolt 8 contacts the upper end surface of the movable sleeve housing (which can also be the flange of the upper end surface of the movable sleeve housing). By rotating the adjusting bolt 8, the movable sleeve 4 can move up and down. By adjusting the up and down movement of the movable sleeve 4 through the adjusting bolt 8, that is, by rotating the adjusting bolt 8 to adjust the distance between the output port of the blanking adjusting device 1 and the diffuser 2, the blanking of the blanking adjusting device 1 can be made more uniform, and the installation, commissioning and replacement of the equipment are simple and convenient. Specifically, if the input amount of the raw material entering the blanking adjusting device 1 decreases, the adjusting bolt 8 is adjusted downward to reduce the distance between the output port of the blanking adjusting device 1 and the diffuser 2; if the input amount of the raw material entering the blanking adjusting device 1 increases, the adjusting bolt 8 is adjusted upward to increase the distance between the output port of the blanking adjusting device 1 and the diffuser 2, so as to keep the uniform blanking device blanking evenly.
[0040] The uniform blanking device further includes: a feed short pipe 5 for inputting raw materials; the upper part of the feed short pipe 5 is welded to the input pipe flange, and the lower part of the feed short pipe 5 is inserted into the upper part of the movable sleeve 4. That is to say, the upper part of the movable sleeve 4 is sleeved outside the feed short pipe 5, and the feed short pipe 5 and the movable sleeve 4 are arranged at intervals. A braided packing 7 is arranged between the feed short pipe 5 and the movable sleeve 4, and the feed short pipe 5 and the movable sleeve 4 are hermetically connected through the braided packing 7. Above the braided packing 7, there is a gland 6 for pressing the braided packing 7. The gland 6 is provided with bolts and is screwed and fixed to the outer shell of the movable sleeve. That is to say, the gland 6 is fixedly installed on the outer shell of the movable sleeve through bolts, thereby ensuring the sealing and pressing of the braided packing 7. Preferably, the braided packing 7 is a polytetrafluoroethylene braided packing 7. The braided packing 7 is usually woven from relatively soft linear materials. Usually, the cross-sectional area of the braided packing 7 is rectangular (including square) or oval (including circular). The braided packing 7 is strip-shaped and filled in the sealing cavity, and there will be no powder leakage phenomenon. There is a certain distance between the movable sleeve 4 and the feed short pipe 5. The braided packing 7 ensures that the movable sleeve 4 and the feed short pipe 5 are coaxially arranged, realizes the sealing between the feed short pipe 5 and the movable sleeve 4, solves the production tolerance problem, and facilitates the installation of on-site equipment pipelines and later maintenance. It should be noted that the direction away from the central axis of the blanking hopper 3 is the outside, and the direction close to the central axis of the blanking hopper 3 is the inside.
[0041] In a specific embodiment, a packing retaining ring 18 is arranged on the inner side wall of the movable sleeve 4 for fixedly supporting the braided packing 7, and the braided packing 7 is arranged on the packing retaining ring 18; between the movable sleeve 4 and the feed short pipe 5, the packing retaining ring 18 and the movable sleeve 4 are fixedly connected. Specifically, the packing retaining ring 18 and the movable sleeve 4 are screwed and fixed or welded and fixed, and the packing retaining ring 18 and the movable sleeve 4 can also be integrally formed.
[0042] Such as Figure 1As shown, a first inclination angle 121 is provided between the first plate and the horizontal plane to reduce the cross-section of the hopper 3 and thus change the size of the discharge port. A second inclination angle 122 is provided between the second plate and the horizontal plane to reduce the cross-section of the hopper 3 and thus change the size of the discharge port. The first inclination angle 121 and the second inclination angle 122 are oppositely arranged. In a specific embodiment, the first inclination angle 121 and the second inclination angle 122 are equal, making the hopper 3 more aesthetically pleasing; in another specific embodiment, the first inclination angle 121 and the second inclination angle 122 are not equal, enabling more flexible adjustment of the size of the discharge port of the hopper 3. The first inclination angle 121 is less than 90°, and the second inclination angle 122 is less than 90°, saving materials in the manufacture of the hopper 3. After the first inclination angle 121 and the second inclination angle 122 are designed, the first plate and the second plate are respectively fixedly connected to the inner wall of the hopper housing according to the first inclination angle 121 and the second inclination angle 122. Preferably, the first plate and the second plate are respectively screwed and fixed to the inner wall of the hopper housing.
[0043] In a specific embodiment, the first plate includes an upper connecting plate 111 and a folding plate 10. The upper end of the upper connecting plate 111 is fixedly connected to the inner wall of the hopper housing. Specifically, the upper end of the upper connecting plate 111 is screwed and fixed to the inner wall of the hopper housing. The lower end of the upper connecting plate 111 is hinged to the upper end of the folding plate 10. The lower ends of the folding plate 10 and the second plate form the discharge port of the hopper 3. By adjusting the folding plate 10 and rotating the lower end of the folding plate 10 around the folding plate rotating shaft 9, the size of the discharge port of the hopper 3 can be adjusted, enabling uniform output of raw materials. On-site adjustment is convenient and fast, achieving uniform output of raw materials and providing uniform raw materials for the dryer.
[0044] A folding plate 10 is provided at the first end 31 of the discharge port of the hopper 3 through a folding plate rotating shaft 9. A driving mechanism is provided outside the folding plate 10. The driving mechanism is used to drive the folding plate 10 to rotate around the folding plate rotating shaft 9 towards or away from the second end 32 of the discharge port to adjust the size of the discharge port. The second end 32 is oppositely arranged with the first end 31, and the height of the first end 31 is higher than that of the second end 32, facilitating the arrangement of the folding plate 10 and adjusting the size of the discharge port. The folding plate 10 is lapped on the driving mechanism.
[0045] As Figure 2As shown, in a specific embodiment, the folding plate 10 includes a straight segment and an arc segment 16. The upper part of the folding plate 10 is the arc segment 16, which is bent downward to play a role of smooth transition, and the raw material falls more smoothly along the arc segment 16; in the front view, in the vertical projection plane, the straight segment is a straight line, and the arc segment 16 is an arc. The straight segment is arranged below the arc segment 16, and the upper end of the straight segment and the lower end of the arc segment 16 are fixedly connected. Specifically, the upper end of the straight segment and the lower end of the arc segment 16 can be welded and fixed. Preferably, the straight segment and the arc segment 16 are integrally formed for smooth transition; the folding plate 10 rotates clockwise to reduce the opening of the discharge port; the folding plate 10 rotates counterclockwise to increase the opening of the discharge port; that is, the folding plate 10 rotates in the direction close to the second plate to reduce the opening of the discharge port; the folding plate 10 rotates in the direction away from the second plate to increase the opening of the discharge port.
[0046] In another specific embodiment, the driving structure includes a fixed support and an electro-hydraulic push rod. The fixed support is fixed to the shell of the hopper. Specifically, the fixed support is screwed and fixed to the shell of the hopper. The oil cylinder of the electro-hydraulic push rod is rotatably connected to the fixed support so that the electro-hydraulic push rod swings around the fixed support when providing driving force, thereby pushing the folding plate 10 to rotate clockwise or counterclockwise along the folding plate rotating shaft 9 to reduce or increase the opening of the discharge port. Specifically, the folding plate 10 is pushed to rotate clockwise to reduce the opening of the discharge port; the folding plate 10 is pushed to rotate counterclockwise to increase the opening of the discharge port. The electro-hydraulic push rod can be a new type of flexible transmission machine that integrates machinery, electricity and liquid. The driving structure can also use a hydraulic cylinder instead of the electro-hydraulic push rod.
[0047] like Figure 4 As shown, in another specific embodiment, the driving mechanism includes a valve plate 21, a valve plate rotating shaft 22, a crank arm 23, a bearing 24, a joint 26 and a support rod 27. The valve plate rotating shaft 22 is fixed on an external device, one end of the valve plate 21 is connected to the valve plate rotating shaft 22, and the other end of the valve plate 21 can abut against the outer wall of the folding plate 10, and the valve plate 21 can push the folding plate 10 to rotate clockwise inwardly. The bearing 24 is arranged on the valve plate rotating shaft 22, one end of the crank arm 23 is connected to the valve plate 21 through the bearing 24, and the other end is connected to the support rod 27 through the joint 26. The support rod 27 is rotated counterclockwise, the crank arm 23 is linked, the valve plate 21 is pushed to rotate counterclockwise, and the folding plate 10 is pushed to rotate clockwise, thereby reducing the opening of the discharge port; the support rod 27 is rotated clockwise, the crank arm 23 is linked, the valve plate 21 is pushed to rotate clockwise, and the folding plate 10 is pushed to rotate counterclockwise, thereby increasing the opening of the discharge port.
[0048] The projected length of the folding plate 10 at the bottom of the hopper is smaller than the length of the lower edge of the folding plate 10 from the bottom of the hopper to the inner wall of the hopper shell, so that the folding plate 10 can be adjusted easily.
[0049] like Figure 1As shown in the figure, the diffuser 2 includes a diffuser housing, an upper cone 13 and a lower box body 15; the upper cone 13 and the lower box body 15 are arranged inside the diffuser housing, and the upper cone 13 and the lower box body 15 are fixedly connected. Specifically, the upper cone 13 and the lower box body 15 can be fixedly connected by screwing or welding. Preferably, the upper cone 13 and the lower box body 15 are fixedly connected by welding; that is to say, a lower box body 15 can also be arranged between the upper cone 13 and the hopper-shaped structure 14. The lower box body is in the shape of a cylinder and is used to control the falling time of the raw material, thereby controlling the output volume of the discharge port. In a specific embodiment, the distances from the sides of the cylinder to the diffuser housing are equal. The upper cone 13 is arranged in the middle of the diffuser 2 for uniform diffusion of the raw material; preferably, the upper cone 13 is a cone, and the upper cone 13 is made of a rolled steel plate and is used to uniformly diffuse the raw material. The cross-sectional area of the upper cone 13 gradually increases from top to bottom.
[0050] The cross-sectional area of the hopper-shaped structure 14 of the blanking hopper 3 gradually decreases from top to bottom; the hopper-shaped structure 14 is welded by steel plates and is used to further evenly distribute the raw material. In a specific embodiment, the first inclination angle 121, the second inclination angle 122 and the distance from the lower end of the folding plate 10 to the lower end of the second plate can be calculated according to the output requirements of the raw material and the height of the inverted cone. The diffuser 2 uses the upper cone 13, and the blanking hopper 3 uses the hopper-shaped structure 14, which reduces the use of materials and saves costs.
[0051] In a specific embodiment, the blanking adjustment device 1, the movable sleeve 4, the upper cone and the hopper-shaped structure 14 are coaxially arranged. The upper cone 13 maintains a certain distance from the inner wall of the diffuser housing to facilitate the falling of the raw material. The upper cone 13 of the diffuser 2 and the hopper-shaped structure 14 of the blanking hopper 3 are adapted to the housing box structure of the uniform blanking device, which is faster and more convenient than the upper and lower cone cloth structures and the processing of the cone silo.
[0052] In a specific embodiment, the diffuser 2 is provided with a connecting plate, which is located below the upper cone 13 and is used to support the upper cone 13. The connecting plate is provided with a plurality of through holes for the passage of the raw material; the upper cone 13 and the connecting plate of the diffuser 2 are suspended and fixed in the middle of the diffuser 2. It should be noted that the above-mentioned raw material can specifically be pulverized coal.
[0053] In a specific embodiment, the blanking hopper housing is provided with through holes to save materials, reduce weight and save costs. The number of through holes is one or more. In a specific embodiment, the side wall of the blanking hopper 3 outside the first plate can be removed to further save materials, reduce weight and save costs.
[0054] During use, the movement boundary of the raw materials shrinks along the inner wall of the movable sleeve 4 to concentrate the raw materials, and then uniformly diffuses along the outer wall of the upper cone 13, downward along the outer wall of the box body, and finally the inner wall of the hopper-shaped structure 14 shrinks to the discharge port. The utility model can uniformly diffuse the raw material pulverized coal within a certain width range, thus well improving the coal feeding effect of the dryer and enhancing the drying capacity of the dryer.
[0055] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features of the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0056] For those skilled in the art, the present utility model can be implemented through other embodiments that do not depart from its spiritual essence or essential features. Obviously, the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present utility model. Therefore, from any point of view, it is only an example and not the only one. The embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved. All changes within the scope of the present utility model or within the scope equivalent to the present utility model are included in the present utility model.
Claims
1. A uniform feeding device for dryer feeding, characterized in that: include: Diffuser, drop hopper and drop adjustment device; The diffuser is located above the drop hopper and is used to diffuse the raw materials, and the drop hopper is used to output the raw materials; The material drop adjustment device is located above the diffuser; The blanking adjustment device comprises: a movable sleeve, a movable sleeve shell and an adjustment member, wherein the movable sleeve is movably arranged on the movable sleeve shell, the movable sleeve shell is connected to the diffuser, and the adjustment member is used to adjust the distance between the output port of the movable sleeve and the diffuser.
2. The uniform blanking device according to claim 1, characterized in that: The upper part of the movable sleeve is a tubular structure, and the lower part is a constricted structure.
3. The uniform blanking device according to claim 1, characterized in that: The upper end of the movable sleeve extends outward to form a flange, the flange is placed on the upper end surface of the movable sleeve shell, and a screw hole is arranged on the flange; The adjusting member comprises an adjusting bolt, and the adjusting bolt cooperates with the screw hole to adjust the distance between the output port of the movable sleeve and the diffuser.
4. The uniform blanking device according to claim 1, characterized in that: Also includes: A feed short tube, wherein the movable sleeve is sleeved on the outside of the feed short tube, and the movable sleeve and the feed short tube are spaced apart.
5. The uniform blanking device according to claim 4, characterized in that: The feed short pipe and the movable sleeve are sealed and connected via a braided packing; A packing retaining ring is formed on the inner side wall of the movable sleeve, and the braided packing is placed on the packing retaining ring.
6. The uniform blanking device according to claim 5, characterized in that: A pressure cover is arranged above the braided packing for pressing the braided packing, and the pressure cover is screwed and fixed to the outer shell of the movable sleeve.
7. The uniform blanking device according to claim 1, characterized in that: The cross-sectional area of the drop hopper gradually decreases from top to bottom; the discharge port of the drop hopper is provided with a folding plate, and the folding plate rotates relative to the discharge port to adjust the size of the discharge port.
8. The uniform blanking device according to claim 7, characterized in that: The first end of the discharge port of the drop hopper is provided with the folding plate through a folding plate rotating shaft, and the outer side of the folding plate is provided with a driving mechanism, and the driving mechanism is used to drive the folding plate to rotate around the folding plate rotating shaft toward or away from the second end of the discharge port to adjust the size of the discharge port; The second end is arranged opposite to the first end, and a height of the first end is higher than a height of the second end.
9. The uniform blanking device according to claim 1, characterized in that: The diffuser comprises a diffuser shell, an upper cone and a lower box. The upper cone and the lower box are arranged in the diffuser shell. The cross-sectional area of the upper cone gradually increases from top to bottom. The lower box is fixedly connected to the upper cone.
10. The uniform blanking device according to claim 1, characterized in that: The drop hopper comprises a drop hopper body and a drop hopper shell, wherein the drop hopper body is used for outputting raw materials; and the drop hopper shell is provided with a through hole.