Conical bar turning machine and energy-saving turning roller kiln

Abstract

The utility model discloses a conical bar turning machine and an energy-saving turning roller kiln, and relates to the technical field of kilns. In the cone rod turning machine, a turning machine body is provided with a cavity and a plurality of cone-shaped roller rods, a heat preservation layer is arranged on the wall face of the cavity, a plurality of through holes are formed in the two side walls of the turning machine body respectively, each through hole is communicated with the cavity, each roller rod is arranged in the cavity, and the two opposite ends of each roller rod penetrate through the corresponding through holes respectively. The multiple baffles are arranged in the through holes correspondingly, the baffles are arranged on the upper side and the lower side of the roller correspondingly, the upper end of the baffle on the upper side is hinged to the side wall of the turning machine body, the lower end of the baffle on the lower side is hinged to the side wall of the turning machine body, and each baffle can be turned over in the one-way mode in the direction away from the cavity to open the through hole; the heat preservation cotton is arranged in the through hole in a filling mode and located on the side, away from the cavity, of the baffle. According to the utility model, the situation of fire leakage caused by the fact that heat insulation cotton near the roller rod falls into a kiln when the roller rod runs can be prevented, heat loss is reduced, and the purpose of energy conservation is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of kilns, and in particular relates to a tapered rod turning machine and an energy-saving turning roller kiln. Background Art

[0002] The factory space of ceramic enterprises is wide but limited in length. In order to increase the output of ceramic products, cone rod turning machines are often installed in appropriate kiln length areas to achieve turning. This is equivalent to lengthening the roller kiln within the limited factory length, thereby increasing output and reducing unit costs.

[0003] Conventional technology often uses roller-hole cotton near the rollers of a conical-rod turning machine for sealing and insulation. However, during the rotation of the rollers, the roller-hole cotton can fall into the kiln and cause fire leakage, which leads to heat loss, seriously affecting the firing quality of the ceramics and even requiring the kiln to be shut down for maintenance. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a tapered rod bending machine that can prevent the insulation cotton near the roller from falling into the kiln during roller operation and causing fire leakage, thereby reducing heat loss and achieving energy saving.

[0005] In addition, the utility model also provides an energy-saving turning roller kiln with the above-mentioned tapered rod turning machine.

[0006] According to the first embodiment of the present invention, the tapered rod bending machine includes:

[0007] The turning machine body has a cavity and multiple tapered rollers. The wall of the cavity is provided with a heat-insulating layer. The two side walls of the turning machine body are respectively provided with multiple through holes, each of which is connected to the cavity. Each of the rollers is arranged in the cavity and its opposite ends pass through the corresponding through holes.

[0008] baffles, provided with a plurality of pieces and respectively arranged in the through hole, the baffles are respectively provided on the upper side and the lower side of the roller bar, the upper end of the baffle on the upper side is hinged to the side wall of the turning machine body, and the lower end of the baffle on the lower side is hinged to the side wall of the turning machine body, and each baffle can be flipped unidirectionally in a direction away from the cavity to open the through hole;

[0009] The heat-insulating cotton is filled in the through hole and is located on a side of the baffle away from the cavity.

[0010] The conical rod turning machine according to the embodiment of the first aspect of the present invention has at least the following beneficial effects: in the cavity of the turning machine body, multiple rollers are all conical, which can not only transport the blanks in the cavity, but also ensure that the blanks remain neat and do not deviate during the turning process; the two ends of each roller are arranged through the through hole of the turning machine body, and thermal insulation cotton is arranged around the rollers in the through hole to seal and insulate, and baffles are respectively arranged on the upper and lower sides of the rollers, and the baffle is located on the side of the thermal insulation cotton close to the cavity. The baffle can swing unidirectionally relative to the roller in the direction away from the cavity to open the through hole. Such an arrangement makes the baffle only flip unidirectionally out of the cavity and cannot flip into the cavity, so that the baffle can block the thermal insulation cotton to prevent the thermal insulation cotton from falling into the cavity and causing fire leakage, thereby reducing heat loss, ensuring the firing quality of the product, and achieving energy saving and environmental protection. Moreover, when the rollers need to be replaced, the thermal insulation cotton is pulled apart and the baffle is flipped unidirectionally to make enough space to pull out and install the rollers.

[0011] In some embodiments of the present invention, a limiting portion is provided at one end of the baffle near its hinge, and the limiting portion can abut against the wall of the through hole to prevent the baffle from swinging into the cavity; and / or, the baffles located on the upper and lower sides of the roller rod are respectively provided with arc notches, and the two arc notches together form a channel, and the channel is coaxially arranged with the roller rod.

[0012] In some embodiments of the present invention, a cotton pressing plate is provided on at least one of the upper side and the lower side of the roller, and the cotton pressing plate is connected to the side wall of the turning machine body and is located on the side of the thermal insulation cotton away from the baffle.

[0013] In some embodiments of the present invention, the side wall of the turning machine body includes an insulation side panel assembly and a metal support member, the metal support member is provided with a plurality of through holes, the upper and lower sides of the roller rod are respectively provided with the insulation side panel assembly, the insulation side panel assembly is located on the side of the metal support member close to the cavity, and is connected to the metal support member.

[0014] In some embodiments of the present invention, the outer diameter of the roller rod increases along the radial direction of the turning machine body, a driven gear is provided at one end of the roller rod, the turning machine body is provided with a driving device and a box body, a driving gear is provided at the output end of the driving device, a transmission gear set is provided between the driven gear and the driving gear, the box body is provided with a cavity for accommodating lubricating oil, and the driven gear, the driving gear and the transmission gear set are all located in the cavity.

[0015] According to the energy-saving turning roller kiln of the second embodiment of the utility model, it includes:

[0016] The turning section comprises the tapered rod turning machine as described in the embodiment of the first aspect;

[0017] There are two straight sections, which are respectively connected to the feed end and the discharge end of the tapered rod bending machine.

[0018] The energy-saving turning roller kiln according to the embodiment of the second aspect of the present utility model has at least the following beneficial effects: in the energy-saving turning roller kiln, the feed end and the discharge end of the cone-rod turning machine are respectively connected to two straight sections, realizing the turning design of the energy-saving turning roller kiln, increasing its length, thereby increasing production, and, moreover, since the cone-rod turning machine is provided with unidirectionally flippable baffles on the upper and lower sides of the roller, therefore, when the energy-saving turning roller kiln is in operation, it can prevent the insulation cotton around the roller from falling into the cavity and causing fire leakage and increased heat loss, thereby ensuring the quality of the product out of the kiln and achieving the effect of saving energy.

[0019] In some embodiments of the present invention, each of the straight sections is provided with a kiln roof brick and a kiln bottom brick, the cavity of the tapered rod turning machine is provided with an insulation top plate assembly and a refractory brick assembly, the opposite ends of the insulation top plate assembly at least partially extend out of the cavity, and respectively abut against the upper surfaces of the kiln roof bricks of the two straight sections, a transition brick assembly is provided between the refractory brick assembly and the kiln bottom bricks, a first expansion joint is respectively provided between the transition brick assembly and the refractory brick assembly and between the transition brick assembly and the kiln bottom bricks, and the first expansion joint is filled with first loose cotton.

[0020] In some embodiments of the present invention, the transition brick assembly includes at least two layers of bricks stacked in an up-down staggered manner, and ceramic paper is provided between any two adjacent layers of the bricks.

[0021] In some embodiments of the present invention, the cavity of the cone rod turning machine is provided with an insulation side panel assembly, the opposite ends of the insulation side panel assembly at least partially extend out of the cavity and respectively extend into the kiln cavity of the two straight sections, and a second expansion joint is provided between the insulation side panel assembly and the kiln wall of the straight section, and the second expansion joint is filled with second loose cotton.

[0022] In some embodiments of the present invention, a plurality of rollers are provided at the bottom of the straight segment, all of the rollers are arranged at intervals along the extension direction of the straight segment, and the central axis of the rollers is perpendicular to the extension direction of the straight segment; and / or, the tail end of one of the straight segments is a connecting area between 400°C and 500°C, and the feed end of the tapered rod bending machine is connected to the connecting area.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a top view of the structure of the energy-saving turning roller kiln provided by an embodiment of the utility model;

[0026] Figure 2 yes Figure 1 Schematic cross-sectional view of section AA;

[0027] Figure 3 This is a structural diagram of a tapered rod turning machine provided by an embodiment of the present utility model;

[0028] Figure 4 This is a schematic cross-sectional view of the tapered rod bending machine provided by an embodiment of the present utility model on the roller shaft section;

[0029] Figure 5 yes Figure 4 An enlarged schematic diagram of part B;

[0030] Figure 6 yes Figure 4 A magnified schematic diagram of part C;

[0031] Figure 7 This is a schematic structural diagram of the roller and baffle provided in an embodiment of the present utility model;

[0032] Figure 8 This is a schematic structural diagram of the baffle and cotton pressing plate provided in an embodiment of the present utility model;

[0033] Figure 9 This is a side view schematic diagram of the internal structure of the tapered rod turning machine provided by the embodiment of the utility model, which is connected to two straight segments respectively;

[0034] Figure 10 It is a top view schematic diagram of the internal structure of the tapered rod turning machine provided by an embodiment of the present utility model, which is respectively connected to two straight line segments.

[0035] The markings in the accompanying drawings are as follows: 110, straight section; 111, hanging part; 112, kiln bottom brick; 113, kiln wall; 120, turning section; 200, cone rod turning machine; 201, cavity; 210, insulation side panel assembly; 211, limit plate; 212, cotton pressing plate; 213, second loose cotton; 214, insulation cotton board; 220, insulation top plate assembly; 230, refractory brick assembly; 231, transition brick assembly; 232, first loose cotton; 240, roller; 251, through hole; 252, observation hole; 253, emergency hole; 260, baffle; 261, hinge shaft; 271, drive device; 272, gear transmission structure; 273, support wheel; 280, spring sleeve; 291, oil tank box; 292, oil tank cover; 293, support seat. DETAILED DESCRIPTION

[0036] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention 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. Therefore, they cannot be understood as limitations on the present invention.

[0038] In the description of this utility model, if the word "several" or "several" is used, it means one or more, and "more" means two or more. "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of the words "first," "second," and "third" is only for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features, or implicitly indicating the order of the indicated technical features.

[0039] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0040] Ceramics are sintered at high temperatures in a kiln. Based on the characteristics of the ceramic firing process, the kiln can be divided into multiple zones along its length: the exhaust zone, preheating zone, firing zone, and cooling zone. (The cooling zone generally accounts for about 40% of the kiln length, with the rapid cooling zone accounting for approximately 5%-7%, the slow cooling zone 17%-23%, and the final cooling zone 10%-15%). Each zone occupies a relatively fixed proportion of the kiln length, and each zone is equipped with corresponding heating, air supply, and heat extraction devices according to its function.

[0041] Currently, the firing cycle for ceramic products manufactured by the same manufacturer and using the same process formula is relatively fixed (though it may vary between manufacturers). For example, in a 100m long roller kiln, the time it takes for the green body to enter the kiln for firing and cool down before leaving the kiln is 50 minutes. When using a 400m long roller kiln, the firing cycle for the ceramic slab remains the same at 50 minutes. However, given the same loading width, the output of a 400m long roller kiln is four times that of a 100m long kiln.

[0042] The factory space of some ceramic companies is relatively wide but the length is limited. In order to increase the output of ceramics, they often make turns in the appropriate kiln length area, that is, set up a cone rod turning machine, such as the new cone rod turning machine disclosed in the utility model patent with publication number CN206318384U. This approach is equivalent to lengthening the roller kiln within the limited length of the factory building, thereby increasing the output, reducing the unit cost and enhancing the competitiveness.

[0043] Conventional technology often uses roller-hole cotton near the rollers of a conical-rod turning machine for sealing and insulation. However, during the rotation of the rollers, the roller-hole cotton can fall into the kiln and cause fire leakage, which leads to heat loss and seriously affects the firing quality of ceramic products. It may even require kiln maintenance, resulting in increased production costs and energy consumption.

[0044] Based on the above technical problems, the embodiments of the present invention provide a cone rod turning machine and an energy-saving turning roller kiln, which can prevent the insulation cotton near the roller from falling into the kiln and causing fire leakage when the roller rotates, reduce heat loss, and achieve energy saving and environmental protection.

[0045] Reference Figures 1 to 10 Several embodiments of the tapered rod turning machine and the energy-saving turning roller kiln of the present invention are given below.

[0046] like Figures 1 to 10 As shown, the conical rod turning machine 200 provided according to the embodiment of the first aspect of the present utility model includes a turning machine body, a baffle 260 and thermal insulation cotton.

[0047] The interior of the turning machine body is hollow and has a cavity 201, one end of the cavity 201 is the feeding end, and the other end is the discharging end. It can be understood that the turning machine body is in an arc shape as a whole, so as to realize the turning conveying of the blank. In this embodiment, the turning machine body is in a semicircular shape, such as Figure 1 The wall surface of the cavity 201 is provided with a heat-insulating layer.

[0048] The turning machine body has multiple rollers 240, each of which has a conical structure and is rotatable, capable of conveying the blanks. It is understood that the outer diameter of the rollers 240 increases radially along the turning machine body. Specifically, the outer diameter of the rollers 240 near the center of the turning machine body is smaller, while the outer diameter of the rollers 240 farther from the center of the turning machine body is larger. A drive device 271 for rotating the rollers 240 can be connected to one end of the rollers 240.

[0049] In this embodiment, the tapered roller 240 is formed by connecting a plurality of high-temperature-resistant rods with different outer diameters.

[0050] The inner and outer side walls of the turning machine body are each provided with multiple through-holes 251, spaced at regular intervals along the extension of the turning machine body. Each through-hole 251 communicates with the cavity 201. Each roller 240 is positioned within the cavity 201, with opposite ends of the roller 240 extending through a corresponding through-hole 251. In this embodiment, the through-holes 251 are square, leaving a gap between the outer circumference of the roller 240 and the wall of the through-hole 251. The opposite ends of the roller 240 connect to support members outside the cavity 201, enabling the roller 240 to rotate and convey the blanks.

[0051] It is understandable that one or more rollers 240 may be disposed in the same through hole 251 .

[0052] There are multiple baffles 260, each of which is disposed within the through-hole 251. Baffles 260 are provided on the upper and lower sides of the roller bar 240. The upper end of the baffle 260 located on the upper side of the roller bar 240 is hinged to the side wall of the curve machine body via a hinge shaft 261, while the lower end of the baffle 260 located on the lower side of the roller bar 240 is hinged to the side wall of the curve machine body via a hinge shaft 261. The upper and lower baffles 260 are disposed in an opposed relationship.

[0053] Each baffle 260 can be flipped unidirectionally, away from the cavity 201, to open the through-hole 251. Insulation foam is placed inside the through-hole 251, located on the side of the baffle 260 away from the cavity 201. Specifically, insulation foam is placed at opposite ends of the roller 240 to provide a seal and insulation.

[0054] In this embodiment, the baffle 260 is disposed on the side of the through-hole 251 that is closest to the cavity 201. It is understood that the baffle 260 can be vertical in its initial state. The baffle 260 cannot swing into the cavity 201 and can only swing unidirectionally away from the cavity 201. Therefore, the baffle 260 can act as a cotton barrier between the cavity 201 and the through-hole 251, preventing the thermal insulation cotton from moving into the cavity 201. The upper baffle 260 and the lower baffle 260 swing in opposite directions. If the upper baffle 260 swings unidirectionally clockwise, the lower baffle 260 swings unidirectionally counterclockwise.

[0055] It can be understood that in the conical rod turning machine 200 provided in this embodiment, the multiple rollers 240 in the cavity 201 of the turning machine body are all conical, which can not only transport the blanks in the cavity 201, but also ensure that the blanks remain neat and do not deviate during the turning process; the two ends of each roller 240 are arranged through the through hole 251 of the turning machine body, and thermal insulation cotton is arranged in the through hole 251. The thermal insulation cotton is arranged around the four sides of the roller 240 to seal and insulate to reduce heat loss.

[0056] Moreover, baffles 260 are respectively provided on the upper and lower sides of the roller 240. The baffle 260 is located on the side of the thermal insulation cotton close to the cavity 201. The baffle 260 can swing unidirectionally relative to the roller 240 in the direction away from the cavity 201 to open the through hole 251. With such a setting, the baffle 260 can only flip unidirectionally toward the outside of the cavity 201 and cannot flip into the cavity 201, so that the baffle 260 can block the thermal insulation cotton and prevent the thermal insulation cotton from falling into the cavity 201 and causing fire leakage, thereby reducing heat loss, ensuring the firing quality of the product, and achieving energy saving and environmental protection.

[0057] Furthermore, when the roller 240 needs to be replaced, the heat-insulating cotton is peeled away and the baffle 260 is flipped in one direction to free up enough space to extract and install the roller 240, thereby facilitating the replacement of the roller 240.

[0058] In some embodiments, the baffle 260 is provided with a limiting portion. Specifically, the limiting portion is located at one end of the baffle 260 near its hinge, and the limiting portion can abut against the wall of the through hole 251 to prevent the baffle 260 from swinging into the cavity 201. Figure 8 As shown, in this embodiment, the hinge shaft 261 is located on the side of the baffle 260 away from the cavity 201, and the stopper is located on the side of the baffle 260 closer to the cavity 201 and is integrally formed with the baffle 260, giving the baffle 260 an overall L-shaped design. When the baffle 260 is in a vertical position, the stopper can contact and fit the wall of the through hole 251, preventing the baffle 260 from swinging into the cavity 201. A staff member can drive the baffle 260 to swing outward a certain angle, such as 80° or 90°, from outside the cavity 201.

[0059] In some embodiments, as Figure 7 As shown, the baffles 260 located on the upper and lower sides of the roller 240 are each provided with an arcuate notch. The two opposing arcuate notches together form a channel, which is coaxially arranged with the roller 240. It is understood that each baffle 260 may be provided with one or more arcuate notches. The provision of the arcuate notches can reduce the gap between the baffle 260 and the outer circumference of the roller 240, preventing the insulation foam from falling into the cavity 201 through the large gap when the roller 240 rotates. The baffle 260 can be mounted within the through hole 251 using a bullet hinge.

[0060] In some embodiments, as Figure 8 As shown, a cotton pressing plate 212 is provided on the upper side of the roller 240. The cotton pressing plate 212 is connected to the side wall of the turning machine body and can be fixed to the side wall of the turning machine body by welding or bolting. The cotton pressing plate 212 is located on the side of the thermal insulation cotton away from the baffle 260. There is a certain distance between the cotton pressing plate 212 and the baffle 260. The thermal insulation cotton is arranged between the baffle 260 and the cotton pressing plate 212. The cotton pressing plate 212 can play a certain compression and blocking role, preventing the thermal insulation cotton in the through hole 251 from falling out of the through hole 251.

[0061] Of course, the cotton pressing plate 212 may be provided on the lower side of the roller 240 , or may be provided on both the upper side and the lower side of the roller 240 .

[0062] In some embodiments, as Figure 2 、 Figure 4 and Figure 8 As shown, the side wall of the turning machine body includes a heat-insulating side panel assembly 210 and a metal support.

[0063] The metal support is provided with a plurality of through-holes 251 for the ends of the roller 240 to pass through. The roller 240 is provided with insulation side plate assemblies 210 on the upper and lower sides, respectively. The insulation side plate assemblies 210 are located on the side of the metal support close to the cavity 201 and are connected to the metal support.

[0064] It is understandable that the turning machine body includes a frame, which is connected by multiple metal rods, wherein both sides of the frame are metal support members, and limit plates 211 are provided on the upper and lower sides of the through hole 251. The limit plates 211 are located on the side of the metal support member close to the cavity 201 and are connected to the metal support member. The limit plate 211 has an L-shaped structure. Furthermore, the limit plate 211 can be provided with a positioning protrusion, which can be a cylindrical steel member. The insulation side plate assembly 210 can be composed of multiple insulation plates.

[0065] The upper insulation side panel assembly 210 is placed between the upper limiting plate 211 and the upper wall of the cavity 201, and the lower insulation side panel assembly 210 is placed between the lower limiting plate 211 and the lower wall of the cavity 201, so that the insulation side panel assembly 210 can be fixed relative to the metal support. The positioning protrusion is provided to engage and position the insulation side panel assembly 210, thereby completing the installation and positioning of the insulation side panel assembly 210.

[0066] The side wall of the turning machine body adopts the above arrangement, and there is no need to set roller hole bricks supporting the upper wall, which makes it easy to replace the roller rod 240.

[0067] In some embodiments, as Figures 3 to 6 As shown, one end of the roller rod 240 is provided with a driven gear, and the turning machine body is provided with a driving device 271 and a box.

[0068] The output end of the driving device 271 is provided with a driving gear, and a transmission gear set is provided between the driven gear and the driving gear. The transmission gear set is meshed and connected to the driven gear and the driving gear respectively.

[0069] It is understandable that the drive device 271 includes a motor and a reducer, and the drive device 271 and the roller rod 240 are connected to each other through a gear transmission structure 272. The gear transmission structure 272 includes a driven gear, a driving gear and a transmission gear set. The driven gear is installed at the end of the roller rod 240 away from the center of the turning machine body, and the driving gear is installed on the output shaft of the reducer. In order to enable a drive device 271 to drive multiple roller rods 240 to rotate at the same time, a transmission gear set is set between the driving gear and all the driven gears. The driven gear is located above the transmission gear set. In the turning machine body, multiple drive devices 271 can be set to drive multiple groups of roller rods 240 to rotate respectively.

[0070] The turning machine body is equipped with multiple rotatable support wheels 273, located on one side of the roller bar 240 near the center of the turning machine body. In one example, the support wheels 273 may be bearings mounted on the turning machine body via bearing support plates. In another example, the support wheels 273 may be pulleys with bearings, secured to the turning machine body via bearing support plates.

[0071] It is understandable that each roller 240 is located above the support wheel 273 and is disposed between two adjacent support wheels 273 and abuts against each other. The two support wheels 273 can support and limit the roller 240 to prevent the roller 240 from deviating.

[0072] Furthermore, the roller 240 is sheathed with a spring sleeve 280. The spring sleeve 280 is located between the two support wheels 273 and abuts against the outer circumferences of the two support wheels 273. The provision of the spring sleeve 280 can reduce friction and wear between the roller 240 and the support wheels 273, thereby extending their service life. If necessary, the spring sleeve 280 can be replaced without replacing the roller 240.

[0073] The housing includes an oil tank box 291 and an oil tank cover 292 with a handle. The oil tank cover 292 is hinged to the oil tank box 291, allowing it to flip relative to the oil tank box 291 to protect the interior of the oil tank box 291. The oil tank cover 292 and the oil tank box 291 together form a chamber for containing lubricating oil.

[0074] An oil tank box 291 with an oil tank cover 292 is mounted on the turning machine body and is located outside the cavity 201. The oil tank box 291 is filled with lubricating oil. All driven gears, driving gears, and transmission gear sets are located within the cavity.

[0075] When the turning machine body is running, at least a part of the driven gear, the driving gear and the transmission gear set is in contact with the lubricating oil, allowing the lubricating oil to play a lubricating role, thereby ensuring that the turning machine body can run stably and smoothly for a long time.

[0076] In this embodiment, the turning machine body is equipped with a support base 293. An oil tank box 291 with an oil tank cover 292 and a drive unit 271 are fixed to the support base 293. The oil tank box 291 is equipped with a tank specifically for storing lubricating oil, which is connected to the chamber. The opening of the tank is upward and located below the transmission gear set. The lower portion of the transmission gear set is located within the tank.

[0077] As will be understood, the oil tank box 291 is provided with an opening for the roller rod 240 or the connecting shaft on the roller rod 240 to pass through, as well as an opening for the output shaft of the reducer to pass through. The oil tank cover 292 prevents external dust from entering the oil tank box 291 and contaminating the lubricating oil, protects the transmission gear set, and prevents human contact. Opening the oil tank cover 292 also allows the lubricating oil in the oil tank box 291 to be replenished. A bracket is provided within the housing, and the driven gear and transmission gear set are mounted on the bracket. Opening the oil tank cover 292 allows for convenient maintenance of components within the housing, such as the driven gear.

[0078] In some embodiments, both side walls of the turning machine body are provided with multiple observation holes 252 and multiple emergency holes 253. The observation holes 252 are located above the through-holes 251, and all observation holes 252 are spaced apart along the extension direction of the turning machine body. The emergency holes 253 are located below the through-holes 251, and all emergency holes 253 are spaced apart along the extension direction of the turning machine body. The provision of the observation holes 252 and emergency holes 253 facilitates personnel to observe the situation within the cavity 201 of the turning machine body. In the event of an accident such as brick stacking blocking the kiln, the emergency holes 253 can be used to handle the situation without stopping the kiln.

[0079] In some embodiments, an insulating top plate assembly 220 is provided on the upper wall of the cavity 201 , and a refractory brick assembly 230 is provided on the lower wall of the cavity 201 .

[0080] The insulated roof assembly 220 can be composed of multiple insulation panels stacked vertically. In this embodiment, the insulated roof assembly 220 includes standard fiberboard, ordinary fiberboard, ordinary rock wool board, and steel plate. Two steel plates are provided. The standard fiberboard, ordinary fiberboard, and ordinary rock wool board are stacked vertically and placed between two steel plates. The two steel plates are connected by threaded fasteners, forming a single unit of the standard fiberboard, ordinary fiberboard, ordinary rock wool board, and steel plate, which are then mounted on the frame.

[0081] The refractory brick assembly 230 may be composed of a plurality of lightweight insulation bricks stacked and staggered in an up-down direction. In this embodiment, the lightweight insulation bricks are specifically clay bead bricks, at least some of which have gaps between adjacent clay bead bricks, and ordinary fiber blankets are provided in the gaps.

[0082] The insulated side panel assembly 210 and the insulated top panel assembly 220 are each constructed from multiple heat-resistant cotton panels, staggered in a curved pattern. This increases resistance to heat leakage and reduces heat loss, allowing for the recycling of high-temperature hot air and energy savings. The insulated side panel assembly 210, the insulated top panel assembly 220, and the refractory brick assembly 230 together form the insulation layer.

[0083] like Figures 1 to 10 As shown, the energy-saving turning roller kiln according to the embodiment of the second aspect of the utility model includes a straight section 110 and a turning section 120.

[0084] The turning section 120 includes the conical rod turning machine 200 of the first embodiment. Two straight sections 110 are provided, one of which is connected to the feed end of the conical rod turning machine 200, and the other is connected to the discharge end of the conical rod turning machine 200.

[0085] In this embodiment, both straight segments 110 extend in the front-to-back direction, with their widths extending in the left-to-right direction. The two straight segments 110 are spaced apart and parallel to each other in the left-to-right direction. The tapered rod bending machine 200 has a turning angle of 180°, enabling the transfer of a blank from one straight segment 110 to the other. Of course, the turning angle of the tapered rod bending machine 200 can also be other angles, such as 90°, 120°, or the like.

[0086] In the energy-saving turning roller kiln, the feed end and the discharge end of the conical rod turning machine 200 are respectively connected to the two straight sections 110, realizing the turning design of the energy-saving turning roller kiln, increasing its length, and thus increasing production. Moreover, since the conical rod turning machine 200 is provided with unidirectionally flippable baffles 260 on the upper and lower sides of the roller 240, when the energy-saving turning roller kiln is in operation, it can prevent the insulation cotton around the roller 240 from falling into the cavity 201, causing fire leakage and increased heat loss, thereby ensuring the quality of the product out of the kiln and achieving the effect of saving energy.

[0087] In some embodiments, as Figure 1 and Figure 9 As shown, each straight segment 110 is provided with kiln roof bricks and kiln bottom bricks 112. The kiln roof bricks are located at the kiln top of the straight segment 110 and are supported by hangers 111 provided on the straight segment 110. The kiln bottom bricks 112 are located at the kiln bottom of the straight segment 110. It is understood that the kiln roof bricks can be provided in a suspended ceiling or arched manner.

[0088] The cavity 201 of the cone-rod bending machine 200 is provided with an insulation top plate assembly 220 and a refractory brick assembly 230 . The insulation top plate assembly 220 is located on the upper wall of the cavity 201 , and the refractory brick assembly 230 is located on the lower wall of the cavity 201 .

[0089] The two opposite ends of the thermal insulation top plate assembly 220 at least partially extend out of the cavity 201 and respectively abut against the upper surfaces of the kiln roof bricks of the two straight segments 110 .

[0090] Furthermore, in order to prevent the straight section 110 and the turning section 120 from being damaged by collision or pulling during thermal expansion and contraction, a certain distance is provided between the frame of the tapered rod turning machine 200 and the frame of the straight section 110 .

[0091] In this embodiment, the insulation top plate assembly 220 includes four layers of cotton boards, and the refractory brick assembly 230 includes surface bricks and bottom bricks. Since a curved seam needs to be formed at the joint between the top of the cone rod turning machine 200 and the top of each straight segment 110, one end of the first and second layers of cotton boards in the insulation top plate assembly 220 extends a certain distance outside the cavity 201 and is closely attached to the upper surface of the kiln roof bricks of one of the straight segments 110. At the same time, one end of the third layer of cotton boards in the insulation top plate assembly 220 extends a certain distance outside the cavity 201 and is closely attached to the upper surface of the kiln roof bricks of another straight segment 110. This distance can be 200 mm. The first to fourth layers of cotton boards are arranged in sequence from top to bottom.

[0092] If there is space around the junction of the thermal insulation top plate assembly 220 and the kiln roof brick, loose cotton or cotton blanket can be stuffed in. If you encounter a ceiling board, the part where the thermal insulation top plate assembly 220 extends into the straight section 110 can be grooved.

[0093] Through the above arrangement, the top of the conical rod bending machine 200 and the tops of the two straight sections 110 can be sealed and insulated, thereby reducing heat loss.

[0094] A transition brick assembly 231 is provided between the refractory brick assembly 230 and the kiln bottom brick 112 . A first expansion joint is provided between the transition brick assembly 231 and the refractory brick assembly 230 and between the transition brick assembly 231 and the kiln bottom brick 112 . The first expansion joint is filled with first loose cotton 232 .

[0095] In this embodiment, the transition brick assembly 231 and the refractory brick assembly 230 can be made of the same material. The transition brick assembly 231 includes a surface layer of bricks and a bottom layer of bricks. Because a curved seam needs to be formed at the joint between the bottom of the cone-rod turning machine 200 and the bottom of each straight segment 110, one end of the transition brick assembly 231 extends into the cavity 201 of the cone-rod turning machine 200 and is positioned horizontally opposite the refractory brick assembly 230. The other end of the transition brick assembly 231 extends into the kiln cavity of the straight segment 110 and is positioned horizontally opposite the kiln bottom brick 112. In addition, a first expansion joint is provided between the transition brick assembly 231 and the refractory brick assembly 230, and a first expansion joint is also provided between the transition brick assembly 231 and the kiln bottom brick 112. The first loose cotton 232 is filled in the first expansion joint. The front-to-back dimension of the first expansion joint can be 80 mm.

[0096] Through the above arrangement, during the process of thermal expansion and contraction, the first expansion joint and the first bulk cotton 232 can be effectively utilized to offset the expansion stress, and while ensuring good sealing and heat preservation effects, the straight section 110 and the turning section 120 are allowed to expand and contract without collision.

[0097] In one specific example, transition brick assembly 231 includes at least two layers of bricks, each layer comprising multiple bricks. The at least two layers of bricks are stacked vertically and offset, with ceramic paper positioned between any two adjacent layers. Specifically, the ceramic paper is high-alumina ceramic fiber paper, which can be 2 mm thick. No mortar is required between adjacent layers of bricks.

[0098] In this embodiment, the transition brick assembly 231 comprises two bricks stacked vertically and offset. The upper brick contacts the surface bricks in the refractory brick assembly 230, leaving a first expansion joint between the upper brick and the kiln bottom bricks 112. The lower brick also leaves a first expansion joint between the lower brick and the bottom bricks in the refractory brick assembly 230, and the lower brick contacts the kiln bottom bricks 112. Therefore, two vertically offset first expansion joints are provided at the junction between the tapered rod turning machine 200 and each straight segment 110.

[0099] To ensure sealing and thermal insulation, the transition area between the tapered rod turning machine 200 and the straight section 110 does not utilize bottom brick masonry and bonding. Instead, high-aluminum ceramic paper is used to seal the upper and lower brick layers, allowing for free thermal expansion and contraction. Furthermore, a primary expansion joint is filled with lightweight, thermally insulating primary bulk cotton 232, which compresses and seals tightly at high temperatures and expands at lower temperatures, offsetting the stress caused by expansion.

[0100] Further, such as Figure 1 and Figure 10 As shown, the cavity 201 of the conical rod bending machine 200 is provided with an insulating side panel assembly 210, which is located on the side wall of the cavity 201. The opposite ends of the insulating side panel assembly 210 at least partially extend out of the cavity 201 and respectively extend into the kiln cavity of the two straight segments 110. A second expansion joint is defined between the insulating side panel assembly 210 and the kiln wall 113 of the straight segments 110, and the second expansion joint is filled with second bulk cotton 213.

[0101] The insulating side panel assembly 210 can be formed by stacking multiple insulating panels. The structure of the insulating side panel assembly 210 can be consistent with that of the insulating top panel assembly 220. Because a curved seam needs to be formed at the joint between the side wall of the tapered rod bending machine 200 and the kiln wall 113 of each straight segment 110, one end of the insulating side panel assembly 210 at least partially extends a certain distance from the cavity 201 and extends into the kiln cavity of one of the straight segments 110, horizontally opposite to the kiln wall 113. The other end of the insulating side panel assembly 210 at least partially extends a certain distance from the cavity 201 and extends into the kiln cavity of another straight segment 110, horizontally opposite to the kiln wall 113. In addition, a second expansion joint is provided between the insulating side panel assembly 210 and the kiln wall 113, and the second bulk cotton 213 is arranged in the second expansion joint. This distance can be 130 mm. The front-to-back dimension of the second expansion joint can be 50 mm.

[0102] Through the above arrangement, the side walls of the tapered rod bending machine 200 and the kiln walls 113 of the two straight sections 110 can be sealed and insulated, thereby reducing heat loss.

[0103] In this embodiment, the thermal insulation side panel assembly 210 includes four layers of cotton panels. The first and second layers of cotton panels extend out of the cavity 201 and are inserted into the heat exchange cotton layer of one of the straight segments 110 (i.e., the kiln wall 113), leaving an 80mm second expansion gap with the heat exchange cotton layer. The third and fourth layers of cotton panels extend out of the cavity 201 and are inserted into the heat exchange cotton layer of another straight segment 110, leaving a 50mm second expansion gap with the heat exchange cotton layer. All second expansion gaps are filled with second loose cotton 213. The first to fourth layers of cotton panels are arranged sequentially from the outside of the cavity 201 to the inside.

[0104] Because the width of the other straight section 110 is smaller than that of the tapered rod bending machine 200, an insulation board 214 is installed between the first and second layers of the board and the frame of the other straight section 110. An expansion gap is left between the insulation board 214 and the second layer of the board, and a second bulk cotton 213 is installed in the expansion gap. From a top view, the insulation board 214 has an L-shaped structure.

[0105] In some embodiments, a plurality of rollers are disposed at the bottom of the straight segment 110 . All the rollers are spaced apart along the extension direction of the straight segment 110 , and the central axes of the rollers are perpendicular to the extension direction of the straight segment 110 .

[0106] Because the straight section 110 extends in the front-to-back direction, all rollers are spaced at regular intervals along the front-to-back direction, and the central axis of the rollers extends in the left-to-right direction, allowing the rollers to abut against the ground. The installation of rollers at the bottom (i.e., the kiln foot) of the straight section 110 of the energy-saving curved roller kiln facilitates the forward and backward movement of the straight section 110 during expansion and contraction during temperature increases and decreases.

[0107] In some embodiments, the tail end of one of the straight segments 110 is a connecting region between 400°C and 500°C, and the feed end of the tapered rod bending machine 200 is connected to the connecting region.

[0108] The energy-saving curved roller kiln is a roller kiln structure. Based on the characteristics of the roller kiln product and its temperature curve, the length from the 400°C-500°C zone to the kiln tail accounts for approximately 30% of the total kiln length. Based on experience, the tapered rod curving machine 200 is installed in this temperature zone. The total length from the tapered rod curving machine 200 to the kiln tail increases by approximately 30% compared to the length of the straight section 110. In this embodiment, the specific temperature of the connecting zone is approximately 450°C.

[0109] At temperatures of 450°C and below, even with negative pressure and air leakage resulting in temperature differences, ceramic products are unlikely to crack or deform. Installing the Cone Rod Bending Machine 200 in an area with excessively high temperatures will make wall insulation inconvenient and easily lead to cracking and deformation of ceramic products. Installing the Cone Rod Bending Machine 200 in a lower temperature area will only increase length and production capacity, failing to maximize profits.

[0110] The above specifically describes the preferred embodiments of the present invention, but the present invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A cone rod turning machine, characterized in that: include: The turning machine body has a cavity and a plurality of tapered rollers, the wall of the cavity is provided with a heat-insulating layer, the two side walls of the turning machine body are respectively provided with a plurality of through holes, each of the through holes is connected with the cavity, each of the rollers is arranged in the cavity and its opposite ends respectively pass through the corresponding through holes; baffles, provided with a plurality of pieces and respectively arranged in the through hole, the baffles are respectively arranged on the upper side and the lower side of the roller bar, the upper end of the baffle on the upper side is hinged to the side wall of the turning machine body, and the lower end of the baffle on the lower side is hinged to the side wall of the turning machine body, and each baffle can be flipped unidirectionally in a direction away from the cavity to open the through hole; The heat-insulating cotton is filled in the through hole and is located on a side of the baffle away from the cavity.

2. The tapered rod bending machine according to claim 1, characterized in that: A limiting portion is provided at one end of the baffle plate near its hinge, and the limiting portion can abut against the wall of the through hole to prevent the baffle plate from swinging into the cavity; and / or, the baffle plates located on the upper and lower sides of the roller rod are respectively provided with arc notches, and the two arc notches together form a channel, and the channel is coaxially arranged with the roller rod.

3. The tapered rod bending machine according to claim 1, characterized in that: At least one of the upper side and the lower side of the roller is provided with a cotton pressing plate, which is connected to the side wall of the turning machine body and is located on the side of the thermal insulation cotton away from the baffle.

4. The tapered rod bending machine according to claim 1, characterized in that: The side wall of the turning machine body includes an insulating side panel assembly and a metal support member, the metal support member is provided with a plurality of through holes, the upper and lower sides of the roller bar are respectively provided with the insulating side panel assemblies, the insulating side panel assembly is located on a side of the metal support member close to the cavity, and is connected to the metal support member.

5. The tapered rod bending machine according to claim 1, characterized in that: The outer diameter of the roller bar increases along the radial direction of the turning machine body. A driven gear is provided at one end of the roller bar. The turning machine body is provided with a driving device and a box body. A driving gear is provided at the output end of the driving device. A transmission gear set is provided between the driven gear and the driving gear. The box body is provided with a cavity for containing lubricating oil. The driven gear, the driving gear and the transmission gear set are all located in the cavity.

6. An energy-saving turning roller kiln, characterized in that: include: A turning section, comprising a tapered rod turning machine as described in any one of claims 1 to 5; There are two straight sections, which are respectively connected to the feeding end and the discharging end of the cone rod bending machine.

7. The energy-saving turning roller kiln according to claim 6, characterized in that: Each of the straight sections is provided with a kiln roof brick and a kiln bottom brick, the cavity of the tapered rod turning machine is provided with an insulating top plate assembly and a refractory brick assembly, the opposite ends of the insulating top plate assembly at least partially extend out of the cavity, and respectively abut against the upper surfaces of the kiln roof bricks of the two straight sections, a transition brick assembly is provided between the refractory brick assembly and the kiln bottom bricks, a first expansion joint is respectively provided between the transition brick assembly and the refractory brick assembly and between the transition brick assembly and the kiln bottom bricks, and the first expansion joint is filled with first loose cotton.

8. The energy-saving turning roller kiln according to claim 7, characterized in that: The transition brick assembly comprises at least two layers of bricks stacked in an offset manner in the up-down direction, and ceramic paper is arranged between any two adjacent layers of the bricks.

9. The energy-saving turning roller kiln according to claim 7, characterized in that: The cavity of the tapered rod turning machine is provided with an insulation side panel assembly, the opposite ends of the insulation side panel assembly at least partially extend out of the cavity and respectively extend into the kiln cavities of the two straight segments, and a second expansion joint is provided between the insulation side panel assembly and the kiln wall of the straight segment, and the second expansion joint is filled with second loose cotton.

10. The energy-saving turning roller kiln according to claim 6, characterized in that: A plurality of rollers are provided at the bottom of the straight segment, all of the rollers are arranged at intervals along the extension direction of the straight segment, and the central axis of the rollers is perpendicular to the extension direction of the straight segment; and / or, the tail end of one of the straight segments is a connecting area between 400°C and 500°C, and the feeding end of the cone rod bending machine is connected to the connecting area.

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