Drying grate device and drying furnace
By designing a drying grate device, the problem of the lack of drying equipment for small domestic waste disposal equipment is solved, and efficient drying and combustion of domestic waste is achieved, cost reduction and equipment service life is extended.
Patent Information
- Application Number
- CN202421672207.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-07-15
AI Technical Summary
The lack of drying equipment for existing small domestic waste disposal equipment leads to poor combustion effect, long time and high cost of domestic waste.
A drying grate device is designed, including a driver and a drying grate shaft. A through hole is provided on the drying grate sheet. The drying grate shaft is driven to rotate through the driver. Free water on domestic waste flows out through the through holes. The drying grate sheet is evenly distributed along the central circumference, and the stress and heat are uniformly applied, which improves the drying efficiency.
It improves the drying effect of domestic waste, reduces moisture, enhances combustion efficiency, extends the service life of the device, and reduces production costs.
Smart Images
Figure CN223204662U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of drying grates, and in particular to a drying grate device and a drying furnace. Background Art
[0002] In the scope of domestic waste treatment, the processes used on small domestic waste treatment equipment are mostly pyrolysis and combustion. Among them, there is a lack of drying steps for domestic waste at the front end of the domestic waste combustion process, and the domestic waste treatment equipment is not equipped with a drying grate device; the domestic waste has not undergone a drying process, and the free water in the domestic waste has not been effectively separated. In the subsequent domestic waste combustion process, the calorific value of the domestic waste cannot be effectively increased, and the combustion effect is greatly reduced, resulting in low combustion efficiency, long time consumption and high cost of domestic waste.
[0003] Therefore, existing small-scale domestic waste treatment equipment has the problem that the combustion effect of domestic waste is poor, time-consuming and costly due to the lack of equipment for drying domestic waste. Utility Model Content
[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of this application is to provide a drying grate device, which aims to solve the problem that small and medium-sized domestic waste treatment equipment in the prior art lacks equipment for drying domestic waste, resulting in poor combustion effect of domestic waste, long time consumption and high cost.
[0005] The technical solution adopted by the present application to solve the technical problem is as follows: a drying grate device, used in a drying furnace, comprising a driver and a drying grate shaft; the drying grate shaft is fixedly connected to the furnace wall of the drying furnace; the driver is connected to the drying grate shaft, and is used to drive the drying grate shaft to rotate; a drying grate is sleeved on the drying grate shaft, and the drying grate comprises a drying grate sheet and a connecting rod, the drying grate sheet is connected to the connecting rod, and the connecting rod is sleeved on the drying grate shaft and is limited in the circumferential direction with the drying grate shaft; a plurality of through holes are provided on the drying grate sheet; there are a plurality of drying grate sheets, and the plurality of drying grate sheets are distributed along the central circumference of the drying grate shaft, and the angle between adjacent drying grate sheets is 30-180°.
[0006] Optionally, the plurality of through holes are arranged in multiple columns, and the through holes in adjacent columns are staggered.
[0007] Optionally, the shapes of the plurality of through holes are set to be circular, elliptical, square, star-shaped or trapezoidal.
[0008] Optionally, at least one protrusion is provided on each side of the through hole.
[0009] Optionally, the protrusion is provided with a plurality of drainage fractures.
[0010] Optionally, the plurality of drainage fractures are all recessed relative to the surface of the drying grate sheet.
[0011] Optionally, the drying grate plate has a first surface and a second surface arranged opposite to each other, and a thickness center plane between the first surface and the second surface, and several of the through holes have a first orifice located on the first surface, a second orifice located on the second surface, and a central section located on the thickness center plane, and the cross-sectional area of several of the through holes along the direction perpendicular to the thickness decreases from the first orifice to the thickness center plane, and decreases from the first orifice to the thickness center plane.
[0012] Optionally, the drying grate device further includes a mounting frame, which is sleeved on the drying grate shaft and connected to the driver.
[0013] Optionally, the drying grate device further includes a switch group, and the switch group is arranged on the mounting frame.
[0014] The present application also provides a drying furnace comprising the above-mentioned drying grate device.
[0015] Compared with the prior art, the present application provides a drying grate device for a drying furnace. The drying grate device is connected to the drying furnace. Domestic garbage can be placed on the drying grate pieces for drying. The free water on the domestic garbage can flow out from the through holes on the drying grate pieces under the action of gravity, thereby improving the drying effect; and the drying grate pieces are evenly distributed along the central circumference of the drying grate axis. During the rotation process, the drying grate pieces are evenly stressed and heated, further improving the drying effect and extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the drying grate device provided in this application being separated from the furnace wall;
[0017] Figure 2 It is a schematic diagram of the drying grate shaft and the drying grate in this application;
[0018] Figure 3 yes Figure 1 A schematic diagram of an embodiment of C;
[0019] Figure 4 yes Figure 1 A schematic diagram of another embodiment of C and a cross-sectional view of D;
[0020] Figure 5 yes Figure 1 A schematic diagram of another embodiment of C and a cross-sectional view of E;
[0021] Figure 6 yes Figure 1 A is an enlarged schematic diagram.
[0022] Description of reference numerals:
[0023] 1. Drying grate shaft; 11. Pin shaft; 2. Drying grate; 21. Connecting rod; 211. Split pin; 22. Drying grate plate; 221. Through hole; 222. Protrusion; 223. Discharge fracture; 3. Driver; 4. Coupling; 5. First bearing; 6. Second bearing; 8. Furnace wall; 81. Positioning hole. DETAILED DESCRIPTION
[0024] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.
[0025] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.
[0026] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.
[0027] Combined with reference Figure 1 and Figure 2In the first embodiment of the present application, a drying grate device is provided for a drying furnace, comprising a driver 3 and a drying grate shaft 1; the drying grate shaft 1 is arranged on the furnace wall 8 of the drying furnace and is fixedly connected to the furnace wall 8 of the drying furnace; the driver 3 is connected to the drying grate shaft 1 to drive the drying grate shaft 1 to rotate.
[0028] The drying grate shaft 1 is arranged on the furnace wall 8 of the drying furnace. Specifically, the drying grate shaft 1 can be connected to the furnace wall 8 at one end, or both ends can be connected to the furnace wall 8; when both ends of the drying grate shaft 1 are connected to the furnace wall 8, the two ends of the drying grate shaft 1 can be fixedly connected to the two adjacent or opposite furnace walls 8 respectively.
[0029] The drying grate shaft 1 is sleeved with a drying grate 2. The drying grate 2 comprises drying grate plates 22 and a connecting rod 21, which are connected to the connecting rod 21. The connecting rod 21 is sleeved on the drying grate shaft 1 and is circumferentially fixed to the drying grate shaft 1. The drying grate plates 22 are provided with a plurality of through-holes 221. A driver 3 drives the drying grate shaft 1 to rotate, thereby driving the drying grate plates 22. The driver 3 can control the rotation angle and the start and end of the rotation process, allowing the drying grate plates 22 to stop rotating at any position. The driver 3 can be connected to one end of the drying grate shaft 1 or to both ends of the drying grate shaft 1 to drive the drying grate shaft 1 to rotate. The driver 3 drives the drying grate shaft 1 to rotate and can be an electrically driven motor, a hydraulically driven cylinder or motor, a pneumatic cylinder, or other driving mechanism. The driver 3 can be connected to the drying grate shaft 1 via other transmission mechanisms, such as a belt, chain, or rack, to drive the drying grate shaft 1 in circular motion.
[0030] There are multiple drying grate slices 22, distributed along the central circumference of the drying grate shaft 1, with the angle between adjacent drying grate slices 22 ranging from 30 to 180 degrees. The function of the drying grate slices 22 is to receive items for drying. Multiple drying grate slices 22 can receive more items to be dried, thereby improving the drying effect. However, if too many drying grate slices 22 are mounted on the same drying grate shaft 1, the space available for the drying grate slices 22 to bear the weight will be too small.
[0031] The assembly process of the drying grate device of this embodiment is as follows: after connecting the drying grate sheet 22 of the drying grate 2 with the connecting rod 21, the connecting rod 21 is sleeved on the drying grate shaft 1 and fixedly connected to the drying grate shaft 1, and then the drying grate shaft 1 is fixedly connected to the furnace wall 8 of the drying furnace, and the driver 3 is connected to the drying grate shaft 1 to obtain the drying grate device.
[0032] The drying grate device of this embodiment is used in a drying furnace and is connected to the drying furnace via bearings. Domestic waste can be placed on the drying grate slices 22 for drying. Moisture from the domestic waste can flow out of the through holes 221 on the drying grate slices 22 under the action of gravity, thereby improving the drying effect. Furthermore, the drying grate slices 22 are distributed along the central circumference of the drying grate shaft 1. When the driver 3 drives the drying grate shaft 1 to rotate, the drying grate slices 22 are evenly stressed and heated, further improving the drying effect and extending the service life of the device. The drying grate device of this embodiment is used in a drying furnace and can be applied to various object / waste treatment scenarios such as waste drying, waste carbonization, waste combustion, waste gasification, and waste pyrolysis to help drain moisture from objects / waste.
[0033] The drying grate slices 22 and the connecting rod 21 can be connected by welding, or by bolt connection, snap-fit assembly or other forms of fixed connection. The drying grate shaft 1 can be a hollow structure or a solid structure, and can be a smooth axis with higher hardness or a rotating shaft with lower hardness. The shape of the drying grate slices 22 can be rectangular, square, elliptical or other shapes, which can contain chamfers, roundings, etc., and can be made up of several pieces of shapes arranged at intervals. The cross-section of the connecting rod 21 can be a hollow circular ring, a hollow square ring, a hollow triangular ring or other hollow annular structures, which is sleeved and connected to the drying grate shaft 1; the cross-section of the drying grate shaft 1 corresponds to the cross-section of the connecting rod 21, and can be circular, square, triangular or other shapes.
[0034] The plurality of through holes 221 may be arranged in multiple rows and may be arranged correspondingly. In order to facilitate water to flow out through the through holes 221, in some embodiments, the plurality of through holes 221 are arranged in multiple rows, and the through holes 221 in adjacent rows are staggered.
[0035] In some embodiments, the shapes of the through holes 221 are set to be circular, elliptical, square, star-shaped, trapezoidal or other shapes. The shapes of the through holes 221 can preferably be the same to facilitate processing and manufacturing.
[0036] The drying grate fins 22 are provided with a large number of through holes 221, which are evenly distributed on the drying grate fins 22. The radius of the through holes 221 is preferably 0.5-5 cm, and the spacing between the through holes 221 is preferably 0.5-5 cm, which facilitates the conduction of heat during the drying process and the outflow of moisture from the articles. The through holes 221 provided on the drying grate fins 22 are also recessed inwardly to facilitate the outflow of moisture.
[0037] In order to prevent the domestic garbage placed on the drying grate 22 from directly blocking the through hole, in some embodiments, at least one protrusion 222 is provided on each side of the through hole 221, and the protrusion 222 is used to support the domestic garbage placed on the drying grate 22. Figure 3The protrusions 222 may be in the shape of long strips and disposed on both sides of the through hole 221 ; the protrusions 222 may also be in the shape of dots and distributed on both sides of the through hole 221 .
[0038] Combined with reference Figure 4 In some embodiments, the protrusion 222 is provided with a plurality of drainage cutouts 223. Each of the drainage cutouts 223 can be recessed relative to the surface of the drying grate plate 22. Specifically, the drainage cutouts 223 can be connected to the through-holes 221. Because the drainage cutouts 223 are recessed in the surface of the drying grate plate 22 and connected to the through-holes 221, moisture from the domestic waste placed on the drying grate plate 22 can more easily flow into the through-holes 221 through the drainage cutouts 223.
[0039] Combined with reference Figure 5 In some embodiments, the drying grate 22 has a first surface and a second surface disposed opposite each other, and a thickness center plane between the first and second surfaces. Each of the plurality of through holes 221 has a first opening located on the first surface, a second opening located on the second surface, and a center cross section located on the thickness center plane. The cross-sectional area of the plurality of through holes 221, perpendicular to the thickness direction, decreases from the first opening to the thickness center plane, and vice versa. In other words, the through holes 221 are recessed, allowing water to easily fall into the through holes 221 under the action of gravity when passing near the through holes 221, and then flow out through the through holes 221.
[0040] By providing multiple drying grate shafts 1, more weight can be accommodated, improving drying efficiency. Specifically, multiple drying grate shafts 1 can be provided, all mounted on the furnace wall 8. In some embodiments, two or more drying grate shafts 1 are arranged horizontally and in parallel on the furnace wall 8. In some embodiments, two or more drying grate shafts 1 are arranged horizontally and in steps on the furnace wall 8. These horizontally arranged drying grate shafts 1 can accommodate more weight, allowing a large number of items to be dried at once, improving drying efficiency.
[0041] In some embodiments, the shortest spacing between two or more drying grate shafts 1 is preferably 1-3 times the width of the drying grate slices 22; more preferably, the shortest spacing between drying grate shafts 1 is 1-2 times the width of the drying grate slices 22. The spacing between adjacent drying grate shafts 1 cannot be less than the width of the drying grate slices 22, otherwise the installation will be impossible. If the spacing between adjacent drying grate shafts 1 is greater than 3 times the width of the drying grate slices 22, the space required for the device increases, but the drying efficiency is not improved.
[0042] When the spacing between adjacent drying grate shafts 1 is less than 2 times the width of the drying grate slices 22, the drying grate slices 22 mounted on the adjacent drying grate shafts 1 are in a cross relationship in the axial direction, and the adjacent drying grate shafts 1 cannot rotate in the same direction to prevent the drying grate slices 22 from colliding. At this time, the adjacent drying grate shafts 1 rotate in different directions, which can squeeze the objects between the drying grate shafts 1 to a certain extent, thereby improving the drying effect.
[0043] In some embodiments, there are four drying grate fins 22, unevenly distributed along the central circumference of the drying grate shaft 1, with the angle between adjacent drying grate fins 22 ranging from 30° to 180°. In some embodiments, there are four drying grate fins 22, evenly distributed along the central circumference of the drying grate shaft 1, with the angle between adjacent drying grate fins 22 being 90°. In some embodiments, there are three drying grate fins 22, with the angle between adjacent drying grate fins 22 being 120°. The number of drying grate fins 22 can be adjusted to accommodate loads, facilitating drying of items. Holes can be drilled in the furnace wall 8 to connect the drying grate shaft 1 to corresponding holes in the furnace wall 8. In some embodiments, the furnace wall 8 is provided with positioning holes 81, the number of which corresponds to the number of bearings. Specifically, one end of the drying grate shaft 1 passes through the positioning hole 81 and is fixedly connected to the bearing. The positioning hole 81 can be circular, square, star-shaped, or other shapes.
[0044] In order to improve the connection stability between the drying grate shaft 1 and the furnace wall 8, the drying grate device may include a bearing, and the drying grate shaft 1 is connected to the furnace wall 8 through a detachable bearing. In some embodiments, one end of the drying grate shaft 1 is connected to the furnace wall 8, and a bearing is provided on the end of the drying grate shaft 1 close to the furnace wall 8, which is connected to the furnace wall 8 through a detachable bearing. In some embodiments, both ends of the drying grate shaft 1 are fixedly connected to the furnace wall 8; specifically, the bearing includes a first bearing 5 and a second bearing 6, one end of the drying grate shaft 1 is connected to the right side of the furnace wall 8 through the first bearing 5, and the other end is connected to the left side of the furnace wall 8 through the second bearing 6. Among them, the positioning holes 81 provided on the furnace wall 8 correspond to the two ends of the drying grate shaft 1, and both ends of the drying grate shaft 1 pass through the positioning holes 81 and are fixedly connected to the first bearing 5 and the second bearing 6 respectively. The number of positioning holes 81 corresponds to the sum of the number of the first bearing 5 and the second bearing 6.
[0045] Combined with reference Figure 1 In some embodiments, the drying grate device further includes a coupling 4, through which the driver 3 is connected to the drying grate shaft 1. The driver 3 and the coupling 4 provide power to the drying grate shaft 1, enabling high torque at low speeds, making the drying grate shaft 1 less likely to get stuck and ensuring stable operation.
[0046] The drying grate device may further include a mounting frame, which is sleeved on the drying grate shaft 1 and connected to the driver 3, and is used to limit the driving speed of the driver 3 on the drying grate shaft 1, thereby reducing the speed; the mounting frame may be provided with a switch group, which can directly contact the driver 3, thereby limiting the speed of the driver 3. In some embodiments of the mounting frame, the driver 3 is connected to the coupling 4, and the mounting frame is sleeved on the drying grate shaft 1, located above the coupling 4. The switch group contacts the coupling 4, thereby limiting the speed of the coupling 4, thereby limiting the speed of the drying grate shaft 1.
[0047] Combined with reference Figure 6 In some embodiments, a pin 11 is provided on the drying grate shaft 1, and a hole corresponding to the pin 11 is provided on the connecting rod 21. The pin 11 can pass through the hole on the connecting rod 21 to fix the drying grate shaft 1 to the connecting rod 21.
[0048] In some embodiments, the drying grate device may further include a cotter pin 211 , which snaps and fixes the pin shaft 11 . Specifically, the pin shaft 11 passes through a hole on the connecting rod 21 and snaps and fixes the cotter pin 211 .
[0049] In order to improve the connection stability between the connecting rod 21 and the drying grate shaft 1, a plurality of pins 11 can be provided on the drying grate shaft 1, and the number of cotter pins 211 corresponds one to one to the number of pins 11; specifically, pins 11 are provided on the left, middle and right parts of the connection section between the drying grate shaft 1 and the connecting rod 21.
[0050] The material of each component in the drying grate device can be made of special high-temperature resistant and corrosion-resistant stainless steel. When processing domestic waste, it can prevent high temperature and corrosive harsh environment, which is convenient for improving the durability of the device and ensuring the long-term and stable use of the device.
[0051] In addition, the drying grate device adopts an assembled structure, and each component can be replaced, which is convenient for installation and maintenance and has low production cost.
[0052] A second embodiment of the present application provides a drying furnace, in which the above-mentioned drying grate device is arranged on the furnace wall 8 of the drying furnace to form a drying furnace equipment for drying domestic waste.
[0053] The drying furnace equipment of this embodiment can dry the domestic waste before burning it, reduce the moisture content of the domestic waste, facilitate the subsequent burning of the domestic waste, and improve the combustion effect.
[0054] In summary, the present application provides a drying grate device for a drying furnace, which is connected to the drying furnace through bearings. Domestic garbage can be placed on the drying grate pieces for drying. The free water on the domestic garbage can flow out from the through holes on the drying grate pieces under the action of gravity, thereby improving the drying effect; and the drying grate pieces are evenly distributed along the central circumference of the drying grate axis. During the rotation process, the drying grate pieces are evenly stressed and heated, further improving the drying effect and extending the service life of the device.
[0055] The present application also provides a drying furnace, comprising the above-mentioned drying grate device; in some embodiments, the above-mentioned drying grate device is arranged on the furnace wall of the drying furnace, forming a drying furnace that can be used to dry domestic waste, and can dry domestic waste before burning it, reduce the moisture content in the domestic waste, facilitate the subsequent burning of the domestic waste, and improve the combustion effect.
[0056] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and not to limit them. Although the present application has been described in detail with reference to the above examples, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above examples, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the examples in the present application.
Claims
1. A drying grate device for a drying furnace, characterized in that: It includes a driver and a drying grate shaft; the drying grate shaft is fixedly connected to the furnace wall of the drying furnace; the driver is connected to the drying grate shaft, and is used to drive the drying grate shaft to rotate; a drying grate is sleeved on the drying grate shaft, and the drying grate includes a drying grate sheet and a connecting rod, the drying grate sheet is connected to the connecting rod, and the connecting rod is sleeved on the drying grate shaft and is limited in the circumferential direction with the drying grate shaft; a plurality of through holes are provided on the drying grate sheet; there are a plurality of drying grate sheets, and the plurality of drying grate sheets are distributed along the central circumference of the drying grate shaft, and the angle between adjacent drying grate sheets is 30-180°.
2. The drying grate device according to claim 1, characterized in that: The plurality of through holes are arranged in multiple rows, and the through holes in adjacent rows are staggered.
3. The drying grate device according to claim 2, characterized in that: The shapes of the plurality of through holes are set to be one of circular, elliptical, square, star-shaped or trapezoidal.
4. The drying grate device according to claim 1, characterized in that: At least one protrusion is provided on each side of the through hole.
5. The drying grate device according to claim 4, characterized in that: The protrusion is provided with a plurality of drainage fractures.
6. The drying grate device according to claim 5, characterized in that: The plurality of drainage fractures are all arranged to be recessed relative to the surface of the drying grate sheet.
7. The drying grate device according to claim 1, characterized in that: The drying grate plate has a first surface and a second surface arranged opposite to each other, and a thickness center plane between the first surface and the second surface. Several of the through holes have a first orifice located on the first surface, a second orifice located on the second surface, and a central section located on the thickness center plane. The cross-sectional area of several of the through holes along the direction perpendicular to the thickness decreases from the first orifice to the thickness center plane, and decreases from the first orifice to the thickness center plane.
8. The drying grate device according to claim 1, characterized in that: The drying grate device further comprises a mounting frame, which is sleeved on the drying grate shaft and connected to the driver.
9. The drying grate device according to claim 8, characterized in that: The drying grate device further includes a switch group, which is arranged on the mounting frame.
10. A drying furnace, characterized in that: A drying grate device comprising the drying grate device according to any one of claims 1 to 9.